Abstract

A friction chemical in-situ characterization apparatus and a use thereof. The apparatus comprises an ATR support member (6), an ATR crystal (5), and a heating module (4), the ATR support member (6) is provided with a sample tank, the ATR support member (6) is provided with an optical path channel communicated with the bottom of the sample tank, the ATR crystal (5) is installed in the optical path channel, and the heating module (4) is arranged on the lower end surface of the ATR crystal (5). The friction chemical in-situ characterization apparatus further comprises a mechanical friction apparatus arranged in the sample tank and above the ATR crystal (5); the mechanical friction apparatus comprises a slide rail (2) secured on the top of the ATR support member (6), an adapter block (3) slidably arranged on the slide rail (2), and a grinding head (1) detachably secured at the lower end of the adapter block (3); the adapter block (3) is provided with a control system, the control system regulates the pressure, movement mode, and grinding speed of the grinding head (1) on the surface of the ATR crystal (5) by controlling the adapter block (3), and acquires a friction coefficient and wear rate data of a sample material.

IPC Classes  ?

• G01N 19/02 - Measuring coefficient of friction between materials

Abstract

The present application provides a method for improving the surface energy of nickel metal, and a nickel-copper binary metal material and a use thereof. The method comprises: depositing a modified metal layer composed of second metal on the surface of a metal matrix composed of first metal, wherein one of the first metal and the second metal is nickel metal, and the first metal can form a solid solution with the second metal; then performing short-time heat treatment in a protective atmosphere, so that the atoms of the first metal and the atoms of the second metal are uniformly mixed without segregation and phase separation of elements, thereby obtaining a nickel-based binary metal material having surface energy ranging from 30 mJ/m2to 80 mJ/m2. The method for improving the surface energy of a nickel metal matrix of the present application is simple and is easy to popularize; and the prepared nickel-based binary metal material has high surface energy and good hydrophilicity, and has wide prospects of application in the fields of hydrogen production by water electrolysis and the like.

IPC Classes  ?

• C25D 3/38 - ElectroplatingBaths therefor from solutions of copper
• C25D 5/50 - After-treatment of electroplated surfaces by heat-treatment
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
• C23C 10/00 - Solid state diffusion of only metal elements or silicon into metallic material surfaces
• C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process

Abstract

abcdemqzxx, M being at least one of Co and Ni, Q being at least one of a pre-transition element, a semi-metal element, a rare earth element and Al, Z being at least one of Au, Ag and a platinum group metal element, X being at least one of O, N, S and a halogen element, 70≤a+m≤75, 8≤b≤18, 0≤c≤5, 10≤d≤15, 0≤m≤10, 1.3≤e≤2.5, 0≤q≤2, 0≤z≤1, 0≤x≤0.2, 22≤b+c+d≤30, and a+b+c+d+e+m+q+z+x=100. The soft magnetic composite material is composed of the described iron-based nanocrystalline soft magnetic alloy powder, an alloy-state soft magnetic powder, a binder and the like. The provided iron-based nanocrystalline soft magnetic alloy powder and soft magnetic composite material exhibit excellent soft magnetic performance, good processability and low cost.

IPC Classes  ?

• H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder

Abstract

The present application discloses a method for improving performance of a neodymium-iron-boron magnet, and a high-coercivity neodymium-iron-boron magnet. The method for improving the performance of the neodymium-iron-boron magnet comprises: under the action of magnetic attachment, depositing ferromagnetic alloy diffusion source powder onto the surface of a neodymium-iron-boron magnet subjected to magnetism enhancement or magnetization, so as to obtain a magnet to be diffused; and carrying out diffusion heat treatment on the magnet to be diffused. The present application substantially avoids the adverse effect of impurities, which are introduced by conventional powder coating, deposition and diffusion modes, on the performance of the magnet, greatly improves the service stability of the magnet on the basis of high-quality utilization of rare earths, has a simple overall technological process, a stable diffusion effect and a wide application range, and is suitable for batch production of a high-performance magnet.

IPC Classes  ?

• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

Disclosed in the present application are a catalyst and anode for electrolytic production of hydrogen, and preparation methods therefor, activation methods therefor and the use thereof. In one embodiment, the anode for electrolytic production of hydrogen comprises a catalyst, wherein the catalyst is nickel-iron-barium hydrotalcite and has a hexagonal nanoflake structure, the thickness thereof being 100-200 nm. The catalyst can be prepared by means of a one-step solvothermal reaction method. In the present application, alkaline earth metal ions are uniformly doped in nickel-iron hydrotalcite and are dispersed at an atomic level, such that when the anode for electrolytic production of hydrogen based on the catalyst is applied to a process for electrolytic production of hydrogen from an aqueous solution containing chloride ions, the anode not only retains good catalytic performance, but also has greatly improved resistance to chloride ion corrosion, significantly improved working stability and a significantly prolonged service life.

IPC Classes  ?

• C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 11/031 - Porous electrodes
• C25B 11/061 - Metal or alloy
• C25B 11/052 - Electrodes comprising one or more electrocatalytic coatings on a substrate
• C25B 9/17 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof
• C01G 53/00 - Compounds of nickel

Abstract

xx2222x2222/Me gradient transition layer shows a decreasing trend. The superlattice composite coating of the present application has excellent mechanical and tribological properties, has a vacuum friction coefficient of less than 0.02 and a friction life of more than 4×106 revolutions, and can thus meet the requirements of ultra-low friction and ultra-long service life of aerospace vehicles. Additionally, the preparation method for the composite coating provided in the present application is simple, stable, and effective, and has significant practical value and economic benefits.

IPC Classes  ?

• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• C23C 14/02 - Pretreatment of the material to be coated
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C30B 29/68 - Crystals with laminate structure, e.g. "superlattices"
• C30B 23/02 - Epitaxial-layer growth
• C30B 29/02 - Elements
• C30B 29/38 - Nitrides
• C30B 29/46 - Sulfur-, selenium- or tellurium-containing compounds

Abstract

The present invention relates to the technical field of ferroelectric materials. Disclosed are a resilient ferroelectric, a preparation method therefor and a use thereof. The resilient ferroelectric comprises a ferroelectric material and a cross-linking agent. The mass ratio of the ferroelectric to the cross-linking agent is (3-50):1, and the cross-linking density of the resilient ferroelectric is 0.01-20%. The preparation method comprises the following steps: dissolving and mixing a ferroelectric material and a cross-linking agent, and carrying out covalent cross-linking to obtain the resilient ferroelectric. According to the present invention, a trace amount of cross-linking agent is mixed with the ferroelectric material to obtain the ferroelectric having both a network structure and a reversibly reversed ferroelectric domain, and the finally obtained ferroelectric has excellent rebound resilience and flexibility, higher remanent polarization and thermal stability, and shorter switching time, thereby achieving excellent comprehensive performance.

IPC Classes  ?

• C08L 27/16 - Homopolymers or copolymers of vinylidene fluoride
• C08K 5/14 - Peroxides
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules

Abstract

22Z hexagonal ferrite laminated sheet. The antenna reduces intra-frequency coupling interference and inter-frequency cross coupling interference, and achieves the conformality of an ultrahigh-frequency radiation pattern.

IPC Classes  ?

• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
• H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart

Abstract

Disclosed are a hybrid dialkylphosphinic acid salt, and a preparation method therefor and an application thereof. The hybrid dialkylphosphinic acid salt is at least one of compounds represented by Formula (I). The hybrid dialkylphosphinic acid salt of Formula (I) provided herein features a low required loading level, high flame retardant efficiency for various polymers, and high economic efficiency. The present invention overcomes the disadvantage of low flame retardant efficiency of diethylphosphinate in polymers as well as high volatility and low flame retardant efficiency for polyesters of diisobutylphosphinate. The hybrid dialkylphosphinate salt of Formula (I) can be widely applied to flame retardant polymers which require high-temperature processing.

IPC Classes  ?

• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C07F 19/00 - Metal compounds according to more than one of main groups
• C09K 21/12 - Organic materials containing phosphorus

Abstract

Disclosed are a hybrid dialkylphosphinate salt, a method for preparing same, and use thereof. The hybrid dialkylphosphinate salt is selected from at least one of the compounds represented by Formula (I). The hybrid dialkylphosphinate salt of Formula (I) provided herein features a low required loading level, high flame retardant efficiency for various polymers, and good thermal stability. The present invention overcomes the disadvantage of low flame retardant efficiency of diethylphosphinate in polymers as well as low thermal stability and large dust of dipropylphosphinate. The hybrid dialkylphosphinate salt of Formula (I) can be widely applied to flame retardant polymers which require high-temperature processing.

IPC Classes  ?

• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C07F 9/09 - Esters of phosphoric acids

Abstract

A flexible mechanism-based anti-backlash device for a planetary gear train, a gearbox, and a robot joint are provided. The anti-backlash device includes an integrated flexible planet carrier, an adjusting screw and a spring, the integrated flexible planet carrier is provided with a moving platform, the moving platform is provided with a spring hole, and the spring is sleeved outside the screw and is installed in the spring hole; when the threaded connection depth of the adjusting screw and the integrated flexible planet carrier reaches or exceeds a set depth, the adjusting screw can extrude the spring to make the moving platform generate elastic movement along a radial direction of the integrated flexible planet carrier, and the radial elastic movement is transformed into circumferential elastic rotation of a planet carrier bearing hole around the center of the planet carrier through an elastic connector.

IPC Classes  ?

• F16H 57/12 - Arrangements for adjusting or for taking-up backlash not provided for elsewhere
• F16H 57/08 - General details of gearing of gearings with members having orbital motion

Abstract

The present application discloses a universal treatment solution for a perovskite layer, a treatment method, and a use. The universal treatment solution comprises a polar solvent and a non-polar solvent, and the polar solvent contains an amine group and/or sulfonate. The treatment method comprises: providing a perovskite layer; enabling the perovskite layer to be in contact with the universal treatment solution to perform modification treatment; and removing the universal treatment solution. The universal treatment solution and the treatment method provided by the present application can significantly improve the properties of a perovskite material, and the universal treatment solution has significant effects on almost all existing perovskite materials since the principle of action thereof does not change with the types and compositions of the perovskite materials. Moreover, the universal treatment solution of the present application has extremely high reactivity, and therefore, the treatment method requires extremely short treatment time and has low requirements on treatment temperature and treatment apparatus, thereby significantly improving the processing efficiency of the perovskite layer and reducing the treatment costs, and facilitating the promotion and application in industry.

IPC Classes  ?

• H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers

Abstract

Disclosed are a graphene material, a three-dimensional graphene/metal composite material, and preparation methods and the use. The preparation method for the graphene material comprises: subjecting a benzoxazine compound to an irradiation treatment by using a laser, so as to prepare a graphene material based on the benzoxazine compound. Further disclosed are a three-dimensional graphene/metal composite material, and a preparation method therefor and the use thereof. The preparation method therefor comprises: subjecting a benzoxazine compound to a laser treatment, so as to prepare three-dimensional graphene; performing electroplating by taking a mixed system comprising an acetate, an organic solvent and water as an electroplating solution and the three-dimensional graphene as a working electrode, so as to prepare a three-dimensional graphene/metal composite material. The graphene material is prepared by taking a liquid benzoxazine compound as a carbon source; in addition, the three-dimensional graphene prepared on the basis of the liquid carbon source is electroplated in a composite solvent, and overcomes the defect of a pure organic solvent; and the prepared composite material has good conductivity.

IPC Classes  ?

• C01B 32/184 - Preparation

Abstract

Disclosed in the present application are a gradient wetting copper-nickel multilayer composite material, and a preparation method therefor and the use thereof. The gradient wetting copper-nickel multilayer composite material comprises a metal foam block wrapped by a super-hydrophilic copper-nickel plating layer, a hydrophobic salt-resistant and anti-corrosion polyolefin layer and a hydrophobic photothermal evaporation layer having a micro-nano structure, which are sequentially arranged in a stacked manner in a thickness direction. The preparation method comprises: electrically depositing a porous copper plating layer on a metal foam block to form a metal foam block wrapped by a super-hydrophilic copper-nickel plating layer, then depositing a hydrophobic salt-resistant and anti-corrosion polyolefin layer thereon, and finally generating a hydrophobic photothermal evaporation layer having a micro-nano structure, so as to prepare a gradient wetting copper-nickel multilayer composite material. The gradient wetting copper-nickel multilayer composite material provided in the present application has complementary advantages of various functional layers, and multi-functional coupling to obtain a wettability-gradient multilayer composite material formed from bottom to top; and can be used in the fields of photothermal seawater desalination, photothermal wastewater purification, etc.

IPC Classes  ?

• C25D 7/00 - Electroplating characterised by the article coated
• C25D 3/38 - ElectroplatingBaths therefor from solutions of copper
• C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys
• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

122 is an aromatic acyl chloride monomer residue. The preparation method comprises the following steps: under the protection of inert gas, taking tert-butylhydroquinone bis(trimellitate anhydride), 4,4'-(hexafluoroisopropylidene)diphthalic anhydride, an aromatic diamine monomer and an aromatic acyl chloride monomer as polymerization monomers to carry out a polymerization reaction in an organic solvent to obtain a polyamide acid solution; and subjecting the polyamide acid solution to imidization and post-treatment to obtain a polyester imide copolymer. A thin film prepared from the polyester imide copolymer has a glass transition temperature of greater than or equal to 300 °C, a thermal expansion coefficient of less than or equal to 30 ppm/K, and the transmittance at 400 nm of greater than or equal to 70%, and the polyester imide copolymer has potential application in the optical field.

IPC Classes  ?

• C08G 73/16 - Polyester-imides
• C08J 5/18 - Manufacture of films or sheets
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors

Abstract

The present application discloses a self-healing coating having bionic environment adaptability, a preparation method therefor, and an application thereof. The preparation method comprises: carrying out polycondensation on a first mixed reaction system which contains isocyanate and polyol to obtain a prepolymer; enabling a second mixed reaction system which contains a material containing a non-covalent hydrogen bond and/or a material containing a covalent disulfide bond and contains a prepolymer to react, so as to obtain a polyurethane material; mixing the polyurethane material and a modified graphene material, and enabling the modified graphene material to be distributed in the polyurethane material in a parallel arrangement mode, so as to obtain a composite coating of an imitation pearl layer structure; and then curing the composite coating to obtain a self-healing coating having bionic environment adaptability. The self-healing coating having bionic environment adaptability prepared in the present application has high ultimate tensile strength and excellent mechanical properties; moreover, due to the synergistic effect of a dynamic hydrogen bond, a flexible disulfide bond, and an interface hydrogen bond, the present invention exhibits the super-strong mechanical properties and the outstanding self-repairing behavior in the room temperature even saline water environment.

IPC Classes  ?

• C09D 175/08 - Polyurethanes from polyethers
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen

Abstract

Disclosed in the present application are a robot calibration method based on a pose constraint and force sensing. The method comprises: establishing a kinematic model, a geometric error model and a non-geometric error model; installing a tail end calibration apparatus at a tail end of a robot, and installing a geometric constraint apparatus in a working space of the robot; dragging the robot, such that each calibration sphere of the tail end calibration apparatus is constrained in each V-shaped groove in the geometric constraint apparatus, thereby realizing a pose constraint, then, dragging the calibration spheres to the V-shaped grooves, which are on different faces, and calibrating a geometric parameter error of the robot by using the deviation between two measured nominal tail end poses and an actual value; reading a tail end force by means of a force sensor, and calibrating the non-geometric error model; identifying corresponding kinematic model parameters of the robot; and compensating, into a controller of the robot, kinematic model parameter errors obtained by means of identification. The present application has the advantages of being low in cost, having good portability, providing more tail end pose error information, also being usable for performing identification on a non-geometric error model, etc.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• B25J 9/16 - Programme controls
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices

Abstract

A catalyst for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction as well as a preparation method and use thereof are provided. The catalyst includes a zero-valent iron and phosphorus co-modified carbon material which includes a carbon material as a carrier, a zero-valent iron supported onto the carrier and serving as an active component, and a phosphate functional group formed on the surface of the carbon material. The preparation method includes: co-modifying a carbon material using a ferric salt and organic phosphorus to obtain the catalyst for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction. The present application further provides a method for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction. The catalyst provided in the present application integrates active component zero-valent iron and auxiliary component phosphate functional group on the carbon material, thereby realizing the continuous production of 1,1,1,3-tetrachloropropane on a gas-solid fixed bed reactor.

IPC Classes  ?

• B01J 23/745 - Iron
• B01J 21/18 - Carbon
• B01J 35/02 - Solids
• B01J 37/08 - Heat treatment
• C07C 17/354 - Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or halogen atoms in the molecules by hydrogenation

Abstract

Disclosed in the present application are a polymerization method mediated and initiated by oxygen-resistant and biocompatible metallic tin and the use thereof. The polymerization method comprises: subjecting a pre-reaction mixed solution comprising a free radical polymerization monomer, a coordination agent and a solvent to a polymerization reaction confined between metallic tin and a substrate deposited with an initiator, thereby preparing a biocompatible polymer brush thin film. The polymerization method provided in the present application uses a metallic tin sheet/foil to mediate a surface initiated polymerization reaction, is simple, convenient and efficient, has high polymerization efficiency, requires no addition of any metal salt, requires no complex deoxygenization operation or inert environment, and can achieve large-scale preparation. Moreover, the method avoids the use of a copper catalyst, overcomes the defects of a high price, high toxicity, etc., caused by the use of metal copper and a copper salt as catalysts in existing atom transfer radical polymerization systems, and has huge application potential in the field of biomedicine.

IPC Classes  ?

• C08F 292/00 - Macromolecular compounds obtained by polymerising monomers on to inorganic materials
• C08F 220/14 - Methyl esters
• C08F 220/28 - Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
• C08F 220/38 - Esters containing sulfur
• C08F 220/54 - Amides
• C08F 220/20 - Esters of polyhydric alcohols or phenols
• C08F 220/34 - Esters containing nitrogen
• C08F 226/06 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
• C08F 212/08 - Styrene

Abstract

Disclosed in the present application are a modification method for an electrolysis hydrogen production anode, an electrolysis hydrogen production anode, and an application. The modification method for an electrolysis hydrogen production anode comprises: providing an anode base, wherein the anode base can be used for catalyzing electrolysis hydrogen production; and depositing a plurality of silver nanoparticles on the active surface of the anode base to form a silver nano-layer, wherein gaps are present among the silver nanoparticles, and part of the active surface is exposed from the gaps. According to the modification method provided by the present application, by covering the surface of the anode base with the silver nano-layer, chloride ions are adsorbed to the surface of silver during an electrolysis hydrogen production process to form a chlorine rejection layer, so that other chloride ions in a solution are hindered from being continuously adsorbed on the surface of an electrode, thereby achieving the function of slowing the corrosion of an anode by the chloride ions; moreover, a suitable silver nano-layer structure does not have a great effect on the catalytic effect of the anode base, thereby improving the stability and selectivity of an anode in a seawater electrolysis hydrogen production reaction.

IPC Classes  ?

• C25B 11/081 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the element being a noble metal
• C25B 11/061 - Metal or alloy
• C25B 11/055 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
• C25B 11/031 - Porous electrodes
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water

Abstract

The present application discloses a composite catalyst and a synthesis method for bio-based furan chemicals. The composite catalyst comprises tetravalent metal salt and acid metal salt. The synthesis method for bio-based furan chemicals comprises: enabling a reaction system comprising a biomass carbohydrate, a composite catalyst, and a solvent to react. According to the present application, the tetravalent metal salt and the acid metal salt are used to form the composite catalyst, such that the biomass carbohydrate can be simply and efficiently catalyzed under a mild condition to synthesize 5-hydroxymethylfurfural, the target product yield is high, and the catalyst is simple in composition, cheap and easily available in raw materials, and has a good industrial prospect.

IPC Classes  ?

• B01J 27/135 - HalogensCompounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
• B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals
• B01J 27/10 - Chlorides
• C07D 307/46 - Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom

Abstract

Disclosed are a hybridized dialkyl phosphinate salt, a method for preparing same, and use thereof. The hybridized dialkyl phosphinate salt is selected from at least one of the compounds represented by formula (I). The hybridized dialkyl phosphinate salt of formula (I) provided herein features a low effective amount, high flame-retardant efficiency in various macromolecular materials, and good thermal stability. The present invention solves the defect in flame-retardant efficiency of diethyl phosphinate in macromolecular materials and the defects in thermal stability and dust production of dipropyl phosphinate, and can be widely applied to flame retardance in macromolecular materials for thermal processing.

IPC Classes  ?

• C07F 9/30 - Phosphinic acids [R2=P(:O)OH]Thiophosphinic acids

Abstract

A high-conductivity corrosion-resistant amorphous/nanocrystalline composite coexisting coating, and a preparation method therefor and a use thereof. The preparation method comprises: using arc ion plating in combination with high-power impulse magnetron sputtering technology, taking a Cr target as an arc target, taking a Al target as a high-power impulse magnetron sputtering target, taking methane as a working gas, and depositing on a surface of a metal matrix to form a Cr-Al-C layer; and performing vacuum low-temperature heat treatment on the metal matrix on which the Cr-Al-C layer is deposited, thereby obtaining the high-conductivity corrosion-resistant amorphous/nanocrystalline composite coexisting coating. The coating has an amorphous structure and a nanocrystalline structure, and the amorphous structure is a mass-thickness fringe structure. According to the coating, the interface conductivity between the coating and the matrix is improved, the corrosion resistance is improved, and the coating has excellent conductivity and corrosion resistance in a harsh environment.

IPC Classes  ?

• C23C 14/32 - Vacuum evaporation by explosionVacuum evaporation by evaporation and subsequent ionisation of the vapours
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/58 - After-treatment
• H01M 8/0228 - Composites in the form of layered or coated products
• H01M 8/0208 - Alloys
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

Abstract

Disclosed in the present application are a polyester material and a polyester product, and preparation methods therefor and the use thereof. The preparation method comprises: reacting a dibasic acid and/or a dibasic acid ester, a dihydric alcohol, a two-dimensional MXene material catalyst, a second catalyst and a stabilizer to prepare a polyester material; or melting and blending a polyester, a two-dimensional MXene material and an auxiliary agent to prepare a polyester material. In the present application, a two-dimensional MXene material is added as a catalyst and a nucleating agent during the preparation process of a polyester, wherein the two-dimensional MXene material not only functions as a high-activity catalyst, but also functions as an efficient nucleating agent to significantly increase the crystallization rate of the polyester; alternatively, a two-dimensional MXene material is blended and added into a polyester, such that the MXene material is better dispersed in the polyester, and the obtained polyester material has high heat resistance, a rapid crystallization property, excellent mechanical properties and impact resistance, and can be widely applied in the fields of engineering plastics, optical films, industrial wires, food packaging materials, etc.

IPC Classes  ?

• C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
• C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
• C08G 63/86 - Germanium, antimony, or compounds thereof
• C08G 63/183 - Terephthalic acids
• C08G 63/181 - Acids containing aromatic rings
• C08G 63/185 - Acids containing aromatic rings containing two or more aromatic rings
• C08G 63/189 - Acids containing aromatic rings containing two or more aromatic rings containing condensed aromatic rings containing a naphthalene ring
• C08G 63/58 - Cyclic ethersCyclic carbonatesCyclic sulfites
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/18 - Manufacture of films or sheets
• C08K 3/14 - Carbides
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
• C08K 5/134 - Phenols containing ester groups
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

Abstract

Provided are a metal-based composite material, and a preparation method therefor and the use thereof. The metal-based composite material comprises a metal matrix and a reinforcing phase, wherein the reinforcing phase comprises a rare earth boron-carbon compound material and selected fibers which can be selectively added or not added, and the general chemical formula of the rare earth boron-carbon compound material is RExByCz, where RE is Sc, Y, a lanthanide element, etc. Medium/high-entropy RExByCz is used as a reinforcing phase of the metal-based composite material, because the RExByCz has excellent mechanical properties and high-temperature resistance, and the special layered structure thereof can effectively promote the deflection of micro-cracks so as to consume the fracture energy, such that the mechanical properties of the composite material are improved; in addition, the addition of fibers helps to improve the strength of the metal material. The finally prepared metal-based composite material can be applied in the fields of aerospace, nuclear energy, electromagnetic stealth, semiconductors, electromagnetic shielding, neutron absorption and shielding, radiation medicine, electronic device packaging, etc.

IPC Classes  ?

• C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
• C22C 49/14 - Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
• C22C 47/14 - Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
• C04B 35/50 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds

Abstract

xyzxyzz material layer. The medium/high-entropy ceramic material is used for preparing a neutron absorbing material, a neutron shielding material, a superconducting material, a magnetic material, an electromagnetic shielding material, a wave-absorbing material, or a structural material. The fiber-toughened ceramic-based composite material can be used in the fields of aerospace, nuclear energy, semiconductors, electromagnetic absorption or shielding, neutron absorption or shielding, radiochemistry, radioactive medicine, etc.

IPC Classes  ?

• C04B 35/50 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
• C04B 35/58 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides
• C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
• C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
• C04B 35/80 - Fibres, filaments, whiskers, platelets, or the like

Abstract

abcdeff. M is one or a plurality of Nb, Mo, V, Mn, or Cr, molar percentages of the elements are 6 ≤ b ≤15, 5 ≤ c ≤ 12, 0.5 ≤ d ≤ 3, 0.5 ≤ e ≤ 1.5, 0.5 ≤ f ≤ 3, and the remainder is Fe and impurities. The difference between the induced anisotropy value and average magnetocrystalline anisotropy value thereof is 0.1 - 1J / m3u11>), thereby improving high frequency soft magnetic properties.

IPC Classes  ?

• H01F 1/147 - Alloys characterised by their composition

Abstract

A catalyst for the continuous production of 1,1,1,3-tetrachloropropane in a gas-solid phase reaction, a preparation method therefor and the use thereof. The catalyst comprises a zero-valent iron and phosphorus co-modified carbon material, which comprises a carbon material serving as a carrier, zero-valent iron loaded on the carrier and serving as an active component, and a phosphate functional group formed on the surface of the carbon material. The preparation method comprises: obtaining a catalyst for the continuous production of 1,1,1,3-tetrachloropropane in a gas-solid phase reaction by means of co-modification with a ferrous salt and an organophosphorus. Further provided is a method for continuously producing 1,1,1,3-tetrachloropropane in a gas-solid phase reaction. According to the catalyst, the active component zero-valent iron and the auxiliary component phosphate functional group are integrated on the carbon material carrier, such that the dependence of a traditional intermittent kettle type reaction on a liquid catalytic promoter is eliminated, and the continuous production of 1,1,1,3-tetrachloropropane on a gas-solid-phase fixed bed reactor is realized.

IPC Classes  ?

• B01J 27/185 - PhosphorusCompounds thereof with iron group metals or platinum group metals
• C07C 17/278 - Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons
• C07C 17/275 - Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of hydrocarbons and halogenated hydrocarbons
• C07C 19/01 - Acyclic saturated compounds containing halogen atoms containing chlorine

Abstract

The present application discloses a hyperbranched boric acid modified phthalonitrile monomer, a preparation method therefor, and an application thereof. The preparation method for the hyperbranched boric acid modified phthalonitrile monomer comprises: reacting a first mixed reaction system that contains a boron source, a phenol compound, and a solvent to prepare a B-O structure-containing compound; and reacting a second mixed reaction system that contains the B-O structure-containing compound, 4-nitrophthalonitrile, a catalyst, and a solvent to prepare the hyperbranched boric acid modified phthalonitrile monomer. The hyperbranched boric acid modified phthalonitrile monomer prepared in the present application can be dissolved in various organic solvents, and the processing properties of the phthalonitrile monomer are improved; moreover, a modified phthalonitrile resin prepared from the phthalonitrile monomer has excellent high-temperature resistance and ablation resistance properties, and has a wide application prospect in the fields of aerospace, warship submarines, electronic packaging and the like.

IPC Classes  ?

• C07F 5/04 - Esters of boric acids
• C08G 73/06 - Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromoleculePolyhydrazidesPolyamide acids or similar polyimide precursors

Abstract

Disclosed is a refractory high-entropy amorphous alloy material, comprising three or more refractory metal elements among Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and Re, and one or two non-refractory metal elements among Al, Si, Co, B and Ni, the refractory high-entropy amorphous alloy material having an amorphous structure. The refractory high-entropy amorphous alloy material has high corrosion resistance and mechanical performance. Further disclosed is a preparation method for said refractory high-entropy amorphous alloy material, which comprises: performing batching according to the atomic fractions of the respective elements of a refractory high-entropy amorphous alloy material, and uniformly smelting to obtain a master alloy ingot; and after melting the mother alloy ingot, spraying same onto the surface of a rotating copper roller to obtain a refractory high-entropy amorphous alloy strip. The method is simple and efficient, and may be used in large-scale industrial production. Also disclosed is a use of the refractory high-entropy amorphous alloy material in pipe transportation in nuclear reactors and nuclear power and corrosion environments.

IPC Classes  ?

• C22C 45/00 - Amorphous alloys
• C22C 45/10 - Amorphous alloys with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium as the major constituent
• C22C 1/02 - Making non-ferrous alloys by melting
• B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars

Abstract

The environmental-friendly antifouling agent includes a furan oxime and/or furan oxime metal complex, which has not only good antifouling performance, low toxicity and high efficiency and environmental friendliness. The ecological toxicity of the non-target organism is less than 15% of that of metals such as copper and chromium and organic matters such as benzoxazole, and the excellent barrier property of the furan ring structure itself on small molecules such as oxygen and water vapor can also significantly improve the barrier effect of a coating on a typical corrosive factor. The antifouling agent combined with an antifouling coating system can greatly improve the corrosion resistance of the coating system. Meanwhile, such the antifouling agent is easy to synthesize, can be well compatible with self-polishing resins, corrosion type resins and the like.

IPC Classes  ?

• C09D 5/16 - Anti-fouling paintsUnderwater paints
• C08K 5/33 - Oximes
• C09D 5/08 - Anti-corrosive paints
• C09D 133/04 - Homopolymers or copolymers of esters
• C08K 5/00 - Use of organic ingredients

Abstract

A hybrid dialkylphosphinic acid salt, and a preparation method therefor and an application thereof. The hybrid dialkylphosphinic acid salt is at least one of compounds represented by formula (I). the hybrid dialkylphosphinic acid salt having a structure of formula (I) has high flame retardant efficiency for various polymer materials and high economical efficiency, overcomes the shortcomings of low flame retardant efficiency for polymer materials of diethylphosphinate, overcomes the shortcomings of high volatility and low flame retardant efficiency for polyesters of diisobutylphosphinate, and can be widely used in flame retardancy of various polymer materials that needs to be processed at a high temperature. The structural formula of formula (I) is as follows.

IPC Classes  ?

• C07F 9/30 - Phosphinic acids [R2=P(:O)OH]Thiophosphinic acids
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C09K 21/12 - Organic materials containing phosphorus

Abstract

A nanocomposite includes an oxygen vacancy-containing BiOX particle and a coating, where the coating is a biocompatible material. Under near-infrared (NIR) irradiation, the nanocomposite has a photothermal conversion efficiency of greater than or equal to 10%. Under NIR irradiation, the nanocomposite degrades 1,3-diphenylisobenzofuran (DPBF) at a rate of higher than or equal to 0.1 mmol/h. BiOX may be BiOF, BiOCl, BiOBr, BiOI, or BiOAt. A preparation method and a use of the nanocomposite are further provided. The nanocomposite is a bismuth oxyhalide nanomaterial with different numbers of oxygen vacancies and can be used for the photothermal therapy (PTT) of a tumor and for the integrated tumor diagnosis and treatment. The nanocomposite leads to an excellent therapeutic effect under the guidance of multi-modality imaging, and has excellent computed tomography (CT) imaging and photoacoustic imaging (PAI) performance.

IPC Classes  ?

• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation

Abstract

Provided are a high-conductivity corrosion-resistant graphite-like carbon protective multilayer composite coating, a preparation method therefor, and an application thereof. The multilayer composite coating comprises a chromium-iridium transition layer and a graphite-like amorphous carbon layer which are sequentially formed on the surface of a substrate, wherein the content of iridium in the chromium-iridium transition layer is 2-10 wt%, and the substrate comprises a metal bipolar plate. The multilayer composite contains the chromium-iridium transition layer, a corrosion buffer layer is effectively provided by doping the iridium element, the transition layer can form an iridium oxide conductive pathway after being corroded, the conductive pathway can avoid continuous generation of a chromium oxide layer, and the contact resistance is prevented from being greatly increased, thereby achieving the long-acting protection on the metal bipolar plate.

IPC Classes  ?

• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• H01M 8/0202 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors
• H01M 8/10 - Fuel cells with solid electrolytes

Abstract

21-xxx)C MAX phase solid solution composite coating.

IPC Classes  ?

• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/58 - After-treatment
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• H01M 8/0228 - Composites in the form of layered or coated products

Abstract

Provided are a method for preparing a supported catalyst and an application thereof. The preparation method comprises the following steps: carrying out spontaneous ion exchange on a substrate in a solution containing a metal salt, and performing electrochemical oxidation treatment on the product obtained by ion exchange to obtain a supported catalyst. In the preparation method, by means of spontaneous ion exchange at room temperature and subsequent electrochemical oxidation treatment, a supported catalyst is obtained. The electrochemical oxidation treatment can generate high-valence metal ions, and the reaction kinetics of an electrocatalytic production FDCA process can be enhanced.

IPC Classes  ?

• B01J 23/755 - Nickel
• B01J 23/75 - Cobalt
• B01J 23/745 - Iron
• C25B 3/23 - Oxidation

Abstract

2222P nano-array material with a multi-layer structure prepared by the present application has excellent electrochemical activity and stability in a seawater electrolysis oxygen evolution reaction, and can be used in an anode catalyst in electrolysed seawater.

IPC Classes  ?

• C25B 11/053 - Electrodes comprising one or more electrocatalytic coatings on a substrate characterised by multilayer electrocatalytic coatings
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 11/031 - Porous electrodes
• C25B 11/061 - Metal or alloy
• C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

The preparation method for a nano composite coating having a shell-simulated multi-arch structure includes: constructing a discontinuous metal seed layer using a vacuum plating technology; and inducing the deposition of a continuous multi-arch structure layer utilizing the discontinuous metal seed layer, thereby realizing the controllable orientated growth of the nano composite coating having the shell-simulated multi-arch structure. The nano composite coating having the shell-simulated multi-arch structure is of a red abalone shell-simulated nacreous layer aragonite structure, meanwhile has high hardness and high temperature resistance, has excellent performances such as high breaking strength, low friction coefficient and corrosion and abrasion resistance in seawater under the condition of maintaining good breaking tenacity, is simple and controllable in preparation process and low in cost, has unlimited workpiece shapes, is easily produced on large scale, and has huge potential in the fields of new energy, efficiency power, ocean engineering, nuclear energy, and micro-electronic/optoelectronic devices.

IPC Classes  ?

• C23C 14/14 - Metallic material, boron or silicon
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• C23C 14/02 - Pretreatment of the material to be coated
• C23C 14/34 - Sputtering
• C23C 14/04 - Coating on selected surface areas, e.g. using masks
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material

Abstract

A precious metal-supported eggshell catalyst with a preparation method and an application are provided. The precious metal-supported eggshell catalyst includes a carrier, a precious metal and a promoter. As an active component, the precious metal and the promoter are evenly distributed on surface of the carrier, wherein the promoter includes one or more than two of a precious metal, an alkaline earth metal, a transition metal lanthanide series metal, an actinium series metal and/or a metal oxide thereof. With a highly utilization of the precious metal, the precious metal-supported eggshell catalyst showed high conversion, good selectivity and excellent stability, and the precious metal-supported eggshell catalyst is used more than 300 hours with no obvious loss of activity in preparing 1,3-propanediol through hydrogenation of 3-hydroxypropionaldehyde aqueous solution. Furthermore, with large particles the precious metal-supported eggshell catalyst is easily separated from reaction products.

IPC Classes  ?

• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
• B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
• B01J 23/656 - Manganese, technetium or rhenium
• B01J 23/63 - Platinum group metals with rare earths or actinides
• B01J 23/46 - Ruthenium, rhodium, osmium or iridium
• B01J 21/04 - Alumina
• B01J 21/08 - Silica
• B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
• B01J 21/12 - Silica and alumina
• B01J 23/02 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the alkali- or alkaline earth metals or beryllium
• B01J 29/46 - Iron group metals or copper
• B01J 29/76 - Iron group metals or copper
• B01J 35/02 - Solids
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/08 - Heat treatment
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• C07C 29/158 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing iron group metals, platinum group metals, or compounds thereof containing platinum group metals or compounds thereof containing rhodium or compounds thereof
• C07C 29/157 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing iron group metals, platinum group metals, or compounds thereof containing platinum group metals or compounds thereof
• C07C 29/154 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing copper, silver, gold, or compounds thereof

Abstract

Disclosed in the present application a preparation method and application of a monolithic cobalt-doped nickel-molybdenum nanowire catalyst. The catalyst comprises a carrier and an active substance grown in situ on the carrier. The active material comprises cobalt, nickel, and molybdenum. The preparation method comprises: 1. generating a precursor on a carrier by means of a hydrothermal reaction; and 2. performing in-situ electrochemical activation on the precursor to obtain a monolithic cobalt-doped nickel-molybdenum nanowire catalyst. The monolithic cobalt-doped nickel-molybdenum nanowire catalyst provided by the present application is high in stability and long in service life, has rich pore structure and large-length-diameter ratio nanowire morphology, improves reaction mass transfer and load transfer rate. Compared with a nano-powder catalyst, the catalyst of the present application is easily separated from a product after reaction, and can be reused multiple times. The catalyst can be applied to the fields of chemical engineering, environmental protection, biomass conversion and the like, and is particularly suitable for electrocatalytic reaction of large-current biomass.

IPC Classes  ?

• C25B 3/05 - Heterocyclic compounds
• C25B 3/00 - Electrolytic production of organic compounds
• B01J 23/883 - Molybdenum and nickel
• B01J 23/75 - Cobalt

Abstract

2 multi-layer film has good matrix binding strength, hardness and elasticity modulus, good friction and abrasion performance, good temperature self-adopting performance, heat and humidity resistance, and high temperature oxidization resistance under an atmospheric environment at different temperatures, and can meet the requirements of stable lubrication and long-life service of aerospace vehicles.

IPC Classes  ?

• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
• C23C 14/34 - Sputtering

Abstract

The present application discloses a bearing three-dimensional defect detection method and system. The method comprises: under the action of a combined light source and a rotating platform, acquiring N two-dimensional bearing images to be detected; preprocessing said N bearing image to obtain 1/N preprocessed images for defect detection; and inputting said 1/N preprocessed images into a pre-trained N-channel deep learning model to obtain a defect detection result. According to the present application, by means of the cooperation of a 2D camera and the rotating platform, and by replacing a current expensive 3D camera detection method with a detection algorithm for a YOLO network structure improved by a multi-view, multi-channel and multi-attention mechanism, detection accuracy and detection efficiency are improved, and system costs are reduced.

IPC Classes  ?

• G06T 7/60 - Analysis of geometric attributes

Abstract

Disclosed in the present application is an electric push rod. The electric push rod comprises a pressure compensation part, a driving part, and a pushing part; the pressure compensation part has one end connected to an external power source and the other end electrically connected to the driving part; the driving part is connected to the pushing part; and the interior of the pressure compensation part is communicated with the interior of the driving part to form a sealed area that is filled with an insulation liquid for performing pressure compensation on the electric push rod. Furthermore, a casing of the electric push rod is used as a motor housing of a driving motor of the driving part. In the present application, a pressure compensation structure is additionally provided on the electric push rod, such that the electric push rod itself has a pressure compensation function, without needing to additionally provide an auxiliary pressure compensator, thereby reducing the system size and allowing for usage in a deep sea environment.

IPC Classes  ?

• H02K 5/132 - Submersible electric motors
• H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa

Abstract

Disclosed are a core-shell structure type wave absorbing material and a preparation method therefor. The wave absorbing material has a core-shell structure with two-dimensional transition metal-chalcogen compound nanosheets as cores and hollow carbon spheres as shells. The preparation method includes: dissolving the hollow carbon spheres in a solvent, sequentially adding a transition metal source and a chalcogen source, taking a solvothermal reaction after dissolution through stirring, and then performing posttreatment to obtain the wave absorbing material. The present invention further discloses an application of the wave absorbing material in fields of military and civilian high-frequency electromagnetic compatibility and protection. The core-shell structure type wave absorbing material of the present invention has a density of 0.3 to 1.5 g/cm3, a maximum reflection loss value and an effective bandwidth of the material can be effectively improved in a frequency range of 2 to 40 GHz, and the core-shell structure type wave absorbing material is an electromagnetic compatibility and protection material capable of meeting requirements of civilian high-frequency electronic devices and military weapons and equipment such as airships and artillery shells.

IPC Classes  ?

• C01G 1/12 - Sulfides
• C01G 39/06 - Sulfides
• C01G 41/00 - Compounds of tungsten
• C01G 31/00 - Compounds of vanadium
• C01G 33/00 - Compounds of niobium
• C01B 19/00 - SeleniumTelluriumCompounds thereof

Abstract

Disclosed is a method for preparing 1,1,1,3-tetrachloropropane, comprising: reacting the raw materials containing carbon tetrachloride and ethylene in the presence of a first catalyst and a second catalyst to obtain the 1,1,1,3-tetrachloropropane, wherein the first catalyst comprises a carrier and an active component supported on the carrier; the active component comprises nano zero-valent iron; and the second catalyst comprises an ester compound. A supported iron catalyst is used in the preparation method, which can significantly improve the problem of easy agglomeration when only commercially available iron powder is used as a catalyst, and can also increase the specific surface area of the iron, which is conducive to the progress of the reaction.

IPC Classes  ?

• C07C 17/275 - Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of hydrocarbons and halogenated hydrocarbons
• C07C 19/01 - Acyclic saturated compounds containing halogen atoms containing chlorine
• B01J 23/745 - Iron

Abstract

Disclosed is a method for preparing 6-hydroxy-6(hydroxymethyl)-2H-pyran-3(6H)-one by means of catalytic oxidation. The method comprises: using a titanium silicalite molecular sieve as a catalyst, hydrogen peroxide as an oxidant and water as a reaction medium, and subjecting 2,5-furan dimethanol to catalytic oxidation at 15ºC -100ºC for 20min-120min, thereby obtaining 6-hydroxy-6 (hydroxymethyl)-2H-pyran-3(6H)-one. According to the present application, the 6-hydroxy-6(hydroxymethyl)-2H-pyran-3(6H)-one is obtained by means of a one-step catalytic oxidation process under mild conditions, a cleaner and more economical catalytic process is realized, the yield is as high as 95.2%, the cost is low, and few byproducts are produced. The method is environmentally-friendly, the atom economy and the reaction efficiency are relatively high, the product is easy to separate, and the method has a good industrial application prospect.

IPC Classes  ?

• C07D 309/32 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members

Abstract

Disclosed in the present application is a preparation method for 2,5-furandicarboxylic acid. The method comprises: enabling a material containing 2,5-furandimethanol and an alkali source to react in the presence of a catalyst to obtain 2,5-furandicarboxylic acid; the catalyst containing an active ingredient and a carrier; the active ingredient being loaded on the carrier; and the active ingredient being selected from noble metals. In the present application, 2,5-furandimethanol is taken as a raw material, 2,5-furandicarboxylic acid is effectively prepared by adjusting an alkali amount and a temperature, and the present invention has a good industrial application prospect.

IPC Classes  ?

• C07D 307/68 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
• B01J 23/44 - Palladium
• B01J 23/46 - Ruthenium, rhodium, osmium or iridium
• B01J 23/50 - Silver

Abstract

A planetary gear train backlash eliminating device based on a flexible mechanism, a speed reducer, and a robot joint. The backlash eliminating device comprises an adjusting screw (20) and a spring (21). The adjusting screw (20) is threadedly connected to an integrated flexible planetary carrier (10). The integrated flexible planetary carrier (10) is provided with a moving platform (13), and a spring hole is provided in the moving platform (13). The spring (21) is sleeved on the adjusting screw (20) and is mounted in the spring hole. When the depth of the threaded connection between the adjusting screw (20) and the integrated flexible planetary carrier (10) is caused to reach or exceed a set depth, the adjusting screw (20) is able to compress the spring (21), thereby causing the moving platform (13) to generate elastic movement along the radial direction of the integrated flexible planetary carrier (10), and said elastic movement can be converted by means of an elastic connecting piece into circumferential elastic rotation of a planetary carrier bearing hole around the center of the planetary carrier.

IPC Classes  ?

• F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
• F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
• F16H 57/08 - General details of gearing of gearings with members having orbital motion
• F16H 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
• F16H 57/12 - Arrangements for adjusting or for taking-up backlash not provided for elsewhere

Abstract

The present application discloses a precious metal-loaded eggshell type catalyst, a preparation method therefor, and an application thereof. The eggshell type catalyst comprises a carrier and a precious metal and an auxiliary agent which are loaded on the carrier and are used as active components; the precious metal and the auxiliary agent are uniformly distributed on the surface of the carrier; and the auxiliary agent comprises any one or a combination of more than two of a precious metal, an alkaline earth metal, a transition metal lanthanide metal, and an actinide metal, and/or a metal oxide thereof. When the eggshell type catalyst provided by the present application is used for a reaction for preparing 1,3-propanediol by means of hydrogenation of a 3-hydroxypropionaldehyde aqueous solution, the conversion rate of a reactant 3-hydroxypropionaldehyde is high, the obtained 1,3-propanediol is good in selectivity, the utilization rate of the precious metal is high, the stability of the catalyst is good, the catalyst is long in service life, and a continuous fixed bed hydrogenation test for 300 hours or more can be successfully realized; and the catalyst has large particles, can be easily separated from a reactant, can be repeatedly used after being calcined, and has favorable activity.

IPC Classes  ?

• C07C 29/14 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group
• B01J 23/58 - Platinum group metals with alkali- or alkaline earth metals or beryllium
• B01J 23/63 - Platinum group metals with rare earths or actinides
• B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
• C07C 31/20 - Dihydroxylic alcohols
• B01J 23/656 - Manganese, technetium or rhenium

Abstract

Provided are a new type of Raney copper catalyst and method for preparation thereof and application thereof. The new type of Raney copper catalyst comprises aluminum, copper, and metal additive, said metal additive comprising one or a combination of Ni, Fe, Mo, Co, Ag, Pd, Pt, Au, and other elements. The preparation method comprises: high-temperature melting of a mixture containing copper/aluminum alloy and metal additive to obtain a mixed metal cured product, then crushing to obtain a catalyst precursor, then performing activation treatment to obtain a new type of Raney copper catalyst. The new type of Raney copper catalyst, on the basis of the synergistic effect between copper metal and different additive metals, exhibits good hydrogenation reaction capability. In comparison with Raney copper catalysts not having added metal additives, the present catalyst, when used in aqueous hydrogenation reaction of 3-hydroxypropionaldehyde to prepare 1,3-propanediol, has higher activity, better selectivity, and better stability, and the catalyst has relatively large particles which are easy to separate from the reactants.

IPC Classes  ?

• B01J 25/00 - Catalysts of the Raney type
• C07C 31/20 - Dihydroxylic alcohols
• C07C 29/14 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group

Abstract

Disclosed are a method of flying on the moon and a device for flying using the method. A medium on a surface of a moon and a medium accelerating module are used in the flying method. The medium is transferred into the medium accelerating module, accelerated by the medium accelerating module, and ejected out of the medium accelerating module by using a power supply. A counterforce is generated in accordance with the momentum conservation, and the counterforce overcomes the lunar gravity and drives a load to take off. The method is suitable for the environment of the moon where flight by means of atmospheric buoyancy is impossible due to the shortage of atmosphere.

IPC Classes  ?

• B64G 1/40 - Arrangements or adaptations of propulsion systems
• B64G 1/42 - Arrangements or adaptations of power supply systems
• B64G 1/44 - Arrangements or adaptations of power supply systems using radiation, e.g. deployable solar arrays
• B64G 1/66 - Arrangements or adaptations of apparatus or instruments, not otherwise provided for

Abstract

An environmentally-friendly anti-fouling agent, an anti-fouling paint, a multilayer protective film structure, and an application thereof. The environmentally friendly anti-fouling agent comprises furan oxime and/or a furan oxime metal complex, or the like. The anti-fouling agent not only has an excellent anti-fouling performance, low toxicity, high efficiency, is environmentally friendly, and has an ecotoxicity to non-target organisms of less than 15% of that of metals such as copper and cadmium and organic compounds such as benzoxazine, but excellent barrier properties of the furan ring structure for small molecules such as oxygen and water vapor can also significantly increase the barrier effect of a coating on typical corrosion factors. In addition, when used in combination with an anti-corrosion coating system, the corrosion resistance of the coating system can be significantly increased. Furthermore, said type of anti-fouling agent is easy to synthesize, and also has excellent compatibility with self-polishing resin, abrasive resin, and the like, and is suitable for preparing an anti-fouling paint; in addition, the anti-fouling agent is very suitable for application in boats, mariculture facilities, marine platform facilities and so on, and can effectively prevent and remove fouling organisms.

IPC Classes  ?

• C09D 5/16 - Anti-fouling paintsUnderwater paints
• C07D 307/00 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom

Abstract

Disclosed are a deep-learning-based apparatus and method for monitoring behavioral norms in a jail. The deep-learning-based apparatus for monitoring behavioral norms in a jail comprises: a people counting and detection module and a behavioral norm monitoring module, wherein the people counting and detection module comprises a target detection and segmentation process, and is used for imperceptible roll call of people and crowd density recognition; and the behavioral norm monitoring module comprises a training process of obtaining a classifier by using a training sample set and a recognition process of recognizing a test sample by using the classifier, and is used for performing real-time calculation and discrimination on behaviors of people. In this way, according to the present application, behavioral norm recognition can be effectively performed, regarding the requirements of a jail, on detainees, and abnormal behaviors are detected and alarms for same are provided, thereby reinforcing the security protection of the jail and improving the working efficiency of correctional officers.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

A shell-imitating multi-arch structure nano-composite coating, a preparation method therefor and an application thereof. The preparation method comprises: constructing a discontinuous metal seed layer by using vacuum coating technology, and utilizing the discontinuous metal seed layer to induce the deposition of a continuous multi-arch structure layer, thereby achieving the controllable directional growth of the shell-imitating multi-arch structure nano-composite coating. The shell-imitating multi-arch structure nano-composite coating has a red abalone shell-imitating pearl layer aragonite structure, at the same time has high hardness and high temperature resistance, and has excellent performances with regard to high fracture strength, a low friction coefficient, and corrosion and abrasion resistance in seawater and so on when maintaining good fracture toughness. The preparation process thereof is simple and controllable, has low costs, does not have limitations for workpiece shapes and facilitates production expansion, and has great potential in the fields such as new energy, high-efficiency power, ocean engineering, nuclear energy facilities and microelectronic/optoelectronic devices.

IPC Classes  ?

• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/14 - Metallic material, boron or silicon
• C23C 14/34 - Sputtering
• C23C 14/02 - Pretreatment of the material to be coated

Abstract

A driving joint (1). The driving joint (1) comprises a motor (10), a planetary gear reducer (20) integrated in the motor (10), and encoders (30, 40), a brake (50), driving cards (60, 70) and control cards (80, 90) integrated on the motor (10). The planetary gear reducer (20) is mounted on a motor shaft (101) of the motor (10). The motor shaft (101) comprises an input rear end (106) and an output front end (107). The input rear end (106) and the output front end (107) of the motor shaft (101) are each provided with an encoder (30, 40). The brake (50) is mounted on the input rear end (106) of the motor shaft (101). An input end face (11) and an output end face (12) of the driving joint (1) are each provided with a driving card (60, 70) and a control card (80, 90). By applying the planetary gear reducer to driving joint transmission, and by means of the integrated design of a high-performance torque motor, a servo driving controller, a brake, a torque sensor and other components, the driving joint has the advantages of high efficiency, high load to dead weight ratio, support for reverse driving, high response speed, compliant force control, and real-time bus communication. Also provided is a robot.

IPC Classes  ?

• B25J 17/02 - Wrist joints
• B25J 17/00 - Joints
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements

Abstract

x(100-x-y-z)yza100-b100-b, in which 50%≤a≤65%, and 35%≤b≤50%; and uniformly mixing the anisotropic magnet material and the auxiliary material to obtain mixed magnetic powder, and then performing orientated pressing, sintering, and tempering treatment to obtain a heavy rare earth-free high-performance neodymium-iron-boron permanent magnet material. The present application can obviously improve the coercive force of a neodymium-iron-boron permanent magnet material without using heavy rare earth, and at the same time does not affect the magnetic performance thereof, so as to obtain a neodymium-iron-boron permanent magnet material having excellent magnetic performance.

IPC Classes  ?

• H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

Disclosed are a method for preparing a Cr-Al-C based MAX phase coating and the use thereof. The method includes firstly depositing a Cr-C layer onto the surface of a substrate through deposition by means of electric arc ion plating, wherein the thickness of the Cr-C layer is 0.5-5 μm; then depositing an Al layer onto the surface of the Cr-C layer through deposition by means of magnetron sputtering to obtain an Al/Cr-C coating; and finally, performing a heat treatment to obtain the Cr-Al-C based MAX phase coating with a (103) crystal face being preferentially oriented. The coating has a good electrical conductivity and corrosion resistance. Compared with the prior art, the Cr-Al-C based MAX phase coating prepared by the method not only improves the interface electrical conductivity between the coating and the substrate, but also improves the corrosion resistance, and has an excellent electrical conductivity, corrosion resistance and protection performance in severe environments.

IPC Classes  ?

• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• C23C 14/32 - Vacuum evaporation by explosionVacuum evaporation by evaporation and subsequent ionisation of the vapours
• C23C 14/18 - Metallic material, boron or silicon on other inorganic substrates
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/02 - Pretreatment of the material to be coated
• C23C 14/58 - After-treatment

Abstract

Disclosed are an industrial robot absolute precision calibration system and method. The calibration system comprises a three-ball base device, an end measuring device, a robot, a communication cable, and a computer, etc. The calibration method comprises: using a fixed three-ball base device to build a world coordinate system used for describing a robot base coordinate system; using the end measuring device mounted on a robot flange to measure robot end position error information; using a computer to read position error data and robot joint angle data; and finally, substituting all measured data into an absolute accuracy calibration algorithm in the computer to carry out iterative computation, to obtain an accurate kinematic model describing the world coordinate system. Use of the calibration system and the calibration method can accurately calibrate the posture of the robot base coordinate system and robot kinematics parameters, and thus improves the robot absolute positioning precision.

IPC Classes  ?

• B25J 9/16 - Programme controls
• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators

Abstract

Disclosed by the present application is a method for autocatalytic preparation of 2,5-furandicarboxaldehyde oxime. The method for the autocatalytic preparation of the 2,5-furandicarboxaldehyde oxime comprises: reacting 2,5-furandicarboxaldehyde with an oxime agent using an acid to produce 2,5-furandicarboxaldehyde oxime as a catalyst, and then continuing the reaction of the remaining 2,5-furandicarboxaldehyde and the oxime agent in the presence of the catalyst to produce the 2,5-furandicarboxaldehyde oxime. The present application uses acid-triggered reaction, and finishes a reaction by means of the self-catalysis of the 2,5-furandicarboxaldehyde oxime, thereby avoiding the use of excessive alkali auxiliaries, and reducing the emission of pollutants. The conversion rate of the 2,5-furandicarboxaldehyde reaches 100%, the selectivity and yield of the 2,5-furandicarboxaldehyde oxime reaches more than 99%, and the reaction conditions are mild. In addition, the method is simple and easy to operate, low in production cost, and suitable for industrial production.

IPC Classes  ?

• C07C 249/08 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes by reaction of hydroxylamines with carbonyl compounds
• C07C 251/54 - Oximes having oxygen atoms of oxyimino groups bound to carbon atoms of substituted hydrocarbon radicals of hydrocarbon radicals substituted by singly-bound oxygen atoms
• C07C 251/42 - Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups bound to a carbon atom of a ring other than a six-membered aromatic ring
• C07C 251/44 - Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups being part of a ring other than a six-membered aromatic ring

Abstract

1 from the groove bottom of the first groove is a first portion, and the rest thereof is a second portion. At least one side surface of the second portion is formed by expanding in lateral direction from a corresponding side surface of the first portion.

IPC Classes  ?

• F01D 5/18 - Hollow bladesHeating, heat-insulating, or cooling means on blades

Abstract

Disclosed is a method for preparing 2,5-furandicarboxylic acid. The method at least comprises: in an electrolytic cell, catalytically oxidizing an electrolytic solution with a catalyst as an anode to obtain 2,5-furandicarboxylic acid. The catalyst comprises a support and a catalytically active material. The support is a cobalt-based substrate material. The catalytically active material uses the carrier as a cobalt source, and grows autogenously on the surface of the carrier. The morphology of the catalytically active material is an hydrangea-like nanosphere. In the method for preparing 2,5-furandicarboxylic acid by means of electrocatalytic oxidation provided in the present application, in the electrode system, the autogeonously grown monolithic hydrangea-like cobalt oxyhydroxide nanosphere catalyst is used as an anode catalyst, and the catalyst has very high selectivity for FDCA, ensuring the high purity of a product and very high yield. At the same time, the Faraday efficiency of FDCA is close to 100%, the energy utilization rate is high, and there is almost no energy waste; and the method has good ability to electrolyze water to produce hydrogen.

IPC Classes  ?

• C07D 307/68 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
• C25B 3/02 - Electrolytic production of organic compounds by oxidation

Abstract

Disclosed are a preparation method for and use of a cobalt oxyhydroxide catalyst. The preparation method at least comprises: S100, depositing cobalt hydroxide on a carrier to obtain a cobalt hydroxide precursor; and S200. electrochemically activating the cobalt hydroxide precursor in situ, so as to obtain a cobalt oxyhydroxide catalyst. The preparation method for the catalyst of the present application is simple to operate, does not require complicated separation means such as precipitation and centrifugation. The activation process has color changes to make the process intuitional. The activated monolithic catalyst has high activity, good stability and long service life, and is easy to scale up and promote industrial application. In addition, compared with nano-powder catalysts, the monolithic catalyst of the present application is easier to separate from the product after use. The catalyst of the present application is used for electrocatalytic oxidation of 5-hydroxymethyl furfural to prepare 2,5-furandicarboxylic acid, and has stable properties and good hydrogen evolution ability during electrolysis of water. The addition of HMF does not affect the hydrogen evolution performance.

IPC Classes  ?

• B01J 23/75 - Cobalt
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• C25B 3/02 - Electrolytic production of organic compounds by oxidation
• H01G 11/46 - Metal oxides

Abstract

Disclosed by the present application are a cobalt catalyst and a preparation method therefor. The cobalt catalyst comprises a carrier and a catalytically active substance; the carrier is a cobalt-based substrate material; the catalytically active substance is grown on the surface of the carrier; and the catalytically active substance has the morphology of hydrangea-like nanospheres. The catalyst according to the present application is a self-grown monolithic nanosphere catalyst, the surface of the catalyst is a three-dimensional structure assembled and made from nanosheets, and the catalyst has a high specific surface area, which may fully expose catalytic active sites and enhance the catalytic efficiency. Compared to a nanowire catalyst, the catalyst according to the present application has better self-supporting property, and active components are less likely to agglomerate and fall off during an application process. Therefore, the catalyst has a longer service life.

IPC Classes  ?

• B01J 23/75 - Cobalt
• B01J 35/08 - Spheres
• B01J 37/20 - Sulfiding
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves

Abstract

A magnetic nanocomposite material and a preparation method therefor and use thereof. The magnetic nanocomposite material comprises magnetic nano particles and a hydrophilic compound layer coated outside the magnetic nano particles. The magnetic nano particles are of iron oxide, the particle size of the magnetic nano particles is 0.1-20 nm, the particle size of the magnetic nanocomposite material is 0.5-300 nm, and the longitudinal relaxation rate r1 of the magnetic nanocomposite material is larger than or equal to 20 mM-1s-1. The provided magnetic nanocomposite contrast material can be used for magnetic resonance imaging contrast agents, targeted drugs, cell separation and other aspects.

IPC Classes  ?

• A61K 49/00 - Preparations for testing in vivo
• A61K 49/18 - Nuclear magnetic resonance [NMR] contrast preparationsMagnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes
• A61K 49/22 - Echographic preparationsUltrasound imaging preparations
• B82Y 5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 25/00 - Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B82Y 40/00 - Manufacture or treatment of nanostructures
• H01F 1/34 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
• A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
• A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit

Abstract

cαβαβcee of the motor rotor. A control apparatus provided in the present application has the characteristics of high reliability, low cost, high robustness etc., and the corresponding control method can conveniently and flexibly adjust parameters according to different permanent magnet synchronous motors and application scenes, such that the operation performance of the motor can better adapt to actual demands.

IPC Classes  ?

• H02P 21/18 - Estimation of position or speed

Abstract

Disclosed are a molybdenum disulfide/tungsten disulfide multilayer tantalum-doped thin film, a preparation method therefor, and the use thereof. The molybdenum disulfide/tungsten disulfide multilayer tantalum-doped thin film comprises a titanium transition layer, a titanium/tantalum/molybdenum disulfide/tungsten disulfide multilayer gradient transition layer and a molybdenum disulfide/tungsten disulfide multilayer tantalum-doped layer, which are sequentially laminated in the thickness direction thereof. The preparation method comprises: sequentially depositing a titanium transition layer, a titanium/tantalum/molybdenum disulfide/tungsten disulfide multilayer gradient transition layer and a molybdenum disulfide/tungsten disulfide multilayer tantalum-doped layer on the surface of a substrate by means of a magnetron sputtering technique, so as to obtain the molybdenum disulfide/tungsten disulfide multilayer tantalum-doped thin film. The molybdenum disulfide/tungsten disulfide multilayer tantalum-doped thin film has a good substrate bonding strength, hardness and elasticity modulus, has a good friction and wear performance, a good temperature self-adaption performance, moisture and heat resistance, and high-temperature oxidation resistance in the atmosphere at different temperatures, and can also satisfy the lubrication stability and long service life requirements of aerospace vehicles.

IPC Classes  ?

• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering

Abstract

Disclosed are a cationic dopamine-functionalized graphene aqueous anti-corrosion coating, a preparation method therefor and the use thereof. The cationic dopamine-functionalized graphene aqueous anti-corrosion coating comprises: a cationic dopamine-functionalized graphene material and an aqueous resin emulsion, wherein the cationic dopamine-functionalized graphene material is uniformly dispersed in the aqueous resin emulsion. The method for preparing the aqueous anti-corrosion coating comprises: uniformly dispersing the cationic dopamine-functionalized graphene material in the aqueous resin emulsion. A method for preparing a coating layer formed from the anti-corrosion coating comprises: depositing an anti-corrosion coating layer on the surface of a substrate using an electrophoretic deposition technique. By means of dopamine-modified graphene, the present application greatly increases the dispersity and stability thereof; in addition, a barrier layer can be formed in the coating layer, such that the diffusion path of a corrosive medium is significantly prolonged, and a dense passivation layer is formed on the surface of the substrate. Furthermore, the present application uses a simple and convenient electrophoretic deposition technique method, has a low cost and is low in pollution, and has wide application prospects.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

Disclosed are a bionic sandwich corrosion-resistant coating, a preparation method therefor, and the use thereof. The bionic sandwich corrosion-resistant coating comprises at least two waterborne layers coated on the surface of a substrate, wherein at least one graphene barrier layer is distributed between two adjacent waterborne layers. The graphene barrier layer comprises a dopamine-functionalized graphene material having a lamellar structure, and the dopamine-functionalized graphene material is arranged in parallel to the surface of the substrate. The preparation method comprises: using an electrophoresis deposition technique and cyclic voltammetry to sequentially deposit a waterborne layer, a graphene barrier layer and a waterborne layer on the surface of a substrate. Due to hydrogen bonding and electrostatic interactions, the graphene material is arranged in parallel between two waterborne resin layers, such that not only can the diffusion path of a corrosive medium be efficiently prolonged, but the barrier effect of graphene can also be brought into full play, and same approaches the barrier limit. In addition, the preparation method is simple, the cost is low, and the amount of pollution produced is small.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C09D 5/44 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for electrophoretic applications
• C09D 179/04 - Polycondensates having nitrogen-containing heterocyclic rings in the main chainPolyhydrazidesPolyamide acids or similar polyimide precursors
• C09D 175/04 - Polyurethanes

Abstract

A nano composite material, comprising BiOX particles having oxygen vacancy defects and a coating; the coating is a biocompatible material; when under near-infrared radiation, the photothermal conversion efficiency of the nano composite is greater than or equal to 10%; and when under near-infrared radiation, the velocity that 1,3-diphenyl isobenzofuran is degraded by the nano composite material is greater than or equal to 0.1mmol/h; BiOX is selected from at least one of BiOF, BiOCl, BiOBr, BiOI, and BiOAt. A preparation method and use of the nano composite material. The material is a bismuth oxyhalide nano material having oxygen vacancy defects at different concentrations, and is applied to photothermal therapy for tumors; the material is applied to integration of diagnosis and treatment on tumors, and is a diagnosis and treatment integral reagent which is good in therapeutic effect and excellent in CT imaging and photoacoustic imaging performance, improving the identification and detection of critical diseases such as tumors, and achiving functions such as follow-up treatment, treatment effect tracking, and prognosis evaluation.

IPC Classes  ?

• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61K 49/04 - X-ray contrast preparations
• A61K 49/22 - Echographic preparationsUltrasound imaging preparations
• A61K 9/50 - Microcapsules
• A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
• A61P 35/00 - Antineoplastic agents
• A61P 35/04 - Antineoplastic agents specific for metastasis

Abstract

The present application discloses a method for preparing 5-hydroxymethylfurfural. The method comprises directly mixing a hexose compound, an ionic liquid and an acidic catalyst to obtain a mixture, and vacuumizing same during a reaction to take away water, so as to obtain 5-hydroxymethylfurfural. In the method, an ionic liquid is used as a solvent to prepare HMF under mild conditions. In this invention, due to the low reaction temperature almost no side reaction occurs. After the reaction, a solution is clear and transparent, which makes it possible for a molecular sieve to be used to catalyze the reaction.

IPC Classes  ?

• C07D 307/46 - Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom

Abstract

Disclosed is a bio-based intrinsic flame-retardant epoxy resin precursor employing a natural flavonoid compound and an application thereof in the preparation of an epoxy resin. The precursor has a structure as shown in formula (I) and formula (II). Further disclosed is a preparation method for the bio-based intrinsic flame-retardant epoxy resin precursor, comprising: reacting a natural flavonoid compound with epichlorohydrin in one step to prepare the bio-based intrinsic flame-retardant epoxy resin precursor. The present invention features a simple preparation process, good controllability, and easy implementation, and is suitable for large-scale industrial production. A thermosetting epoxy resin obtained after curing of the bio-based intrinsic flame-retardant epoxy resin precursor of the present invention has excellent thermodynamic properties and flame-retardant properties, has the potential of replacing existing petroleum-based high-end epoxy products, and has a wide range of applications.

IPC Classes  ?

• C07D 407/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
• C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
• C08G 59/26 - Di-epoxy compounds heterocyclic
• C08G 59/32 - Epoxy compounds containing three or more epoxy groups

Abstract

A self-supporting ultra-fine nanocrystalline diamond thick film, the thickness being 100-3000 microns, wherein 1 nanometer≤diamond grain size≤20 nanometers. A method for using chemical vapor deposition to grow ultra-fine nanocrystalline diamond on a silicon substrate, and separating the silicon substrate and the diamond to acquire the self-supporting ultra-fine nanocrystalline diamond thick film. The chemical vapor deposition method is simple and effective, and prepares a high-quality ultra-fine nanocrystalline diamond thick film.

IPC Classes  ?

• C23C 16/27 - Diamond only
• C23C 16/01 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes on temporary substrates, e.g. on substrates subsequently removed by etching
• C23C 16/50 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
• C23C 16/02 - Pretreatment of the material to be coated

Abstract

A method for preparing a liquid metal thin film. According to the method, thermal evaporation technology is used to perform evaporation deposition on liquid metal, as an evaporation source, on a substrate surface in order to form a liquid metal thin film. During the process, the evaporation deposition process is separately performed multiple times, and gas is introduced between two successive times, such that the surfaces of deposited liquid metal particles are oxidized, thereby facilitating a reduction in the agglomeration of the liquid metal particles in the deposition process, and improving the dispersion uniformity of the liquid metal particles on the substrate surface; and the thin film formed by means of multiple depositions is conductive as a whole. In addition, according to the preparation method, the thickness of the liquid metal thin film can be controlled by means of setting evaporation parameters and/or regulating the number of depositions, so as to obtain a liquid metal thin film with a resistance ranging from ohms to megohms.

IPC Classes  ?

• C23C 14/26 - Vacuum evaporation by resistance or inductive heating of the source

Abstract

A core-shell structure wave-absorbing material and a preparation method therefor. The wave-absorbing material has a core-shell structure with two-dimensional transition metal-chalcogen compound nanosheets as the core and hollow carbon spheres as the shell. The preparation method comprises: dissolving hollow carbon spheres in a solvent, sequentially adding a transition metal source and a chalcogen source, stirring and dissolving and then performing a solvothermal reaction and, after post-treatment, obtaining the wave-absorbing material. The wave-absorbing material has a density of 0.3-1.5 g/cm3, effectively improving the maximum reflection loss and effective bandwidth of the material in the 2-40GHz frequency range, and is an electromagnetically compatible protective material capable of use in civilian high-frequency electronic devices and military weapons and equipment such as aircraft and artillery shells.

IPC Classes  ?

• C09K 3/00 - Materials not provided for elsewhere

Abstract

Disclosed is a method for preparing 2,5-furandicarboxylic acid by means of the electrocatalytic oxidation of 5-hydroxymethylfurfural, the method comprising using an electrolytic cell for catalytic oxidation, wherein the electrolytic cell is a three-electrode electrolytic cell or a two-electrode electrolytic cell; the anode used is an integral electrode, and the integral electrode comprises a carrier and a catalytically active substance loaded on the carrier; and the catalytically active substance comprises nitrogen-doped carbon nanowires wrapping cobalt(II,III) oxide particles. The method has high activity and selectivity, and the resistance of the anode catalyst to 5-hydroxymethylfurfural is high.

IPC Classes  ?

• C25B 3/02 - Electrolytic production of organic compounds by oxidation
• C25B 1/02 - Hydrogen or oxygen
• B01J 27/24 - Nitrogen compounds

Abstract

Disclosed in the present application is an integral catalyst. The integral catalyst comprises a carrier and an active substance loaded on the carrier; the active substance comprises a nitrogen-doped carbon nanowire wrapped by cobalt oxide particles. Further disclosed in the present application is a preparation method for the integral catalyst. A cobalt oxide nanowire in the integral catalyst is wrapped by a nitrogen-doped carbon layer; the product quality is good; the conductivity is high; and the service life is long.

IPC Classes  ?

• B01J 27/24 - Nitrogen compounds
• B01J 23/75 - Cobalt

Abstract

This application describes a thermal interface material, and preparation and application thereof. Specifically, a thermal interface material is described. The thermal interface material is obtained by bending and folding, optional horizontal pressing and optional high-temperature treatment of a laminated structure. Two-dimensional high-thermal-conductivity nano-plates on the upper surface and the lower surface of the thermal interface material have a horizontal stack structure. Two-dimensional high-thermal-conductivity nano-sheets located between the upper surface and the lower surface of the thermal interface material have both a vertical stack structure and a curved stack structure. Also described are a preparation method and application of the thermal interface material. The thermal interface material combines excellent thermal conductivity and compressibility; the preparation method has the characteristics of simple process, low costs, safety and environmental protection, and accordingly, the thermal interface material can effectively resolve the heat dissipation problem of electronic products.

IPC Classes  ?

• C09K 5/14 - Solid materials, e.g. powdery or granular
• C01B 32/194 - After-treatment
• C01B 21/064 - Binary compounds of nitrogen with metals, with silicon, or with boron with boron
• C08K 9/02 - Ingredients treated with inorganic substances
• C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• H01L 23/373 - Cooling facilitated by selection of materials for the device
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

Abstract

An ultra-fine nanocrystalline diamond precision cutting tool and a manufacturing method therefor. A diamond cutter is made of a thick self-supporting film of ultra-fine nanocrystalline diamond, the thick film having a thickness of 100-3000 microns, where 1 nanometer≤diamond grain size≤20 nanometers. In the manufacturing method, the growth of ultra-fine nanocrystalline diamond on a silicon substrate is accomplished by means of two steps of direct current hot cathode glow discharge chemical vapor deposition and hot filament chemical vapor deposition, then the silicon substrate is separated from the diamond to obtain a thick self-supporting film of ultra-fine nanocrystalline diamond, the thick self-supporting film of ultra-fine nanocrystalline diamond is laser cut and then welded to a cutter body, and then by means of edging, rough grinding and fine grinding, an ultra-fine nanocrystalline diamond precision cutting tool is obtained.

IPC Classes  ?

• B23B 27/20 - Cutting tools of which the bits or tips are of special material with diamond bits
• C23C 16/02 - Pretreatment of the material to be coated
• C23C 16/27 - Diamond only
• C23C 16/50 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
• C23C 16/56 - After-treatment

Abstract

A continuous flow catalytic reactor, an assembling method therefor and an application thereof includes a reaction vessel, a filler packaged in the reaction vessel and a charged catalytic component; the charged catalytic component is fixed to the filler under an action of a direct-current electric field. The continuous flow catalytic reactor may be applied to continuous flow reactions such as a monosaccharide epimerization reaction. A monosaccharide epimerization reaction method includes: providing the continuous flow catalytic reactor; electrically connecting the continuous flow catalytic reactor with a direct-current power supply, thereby to forming the direct-current electric field by electrically connecting the continuous flow catalytic reactor with the direct-current power supply; and heating a reactor container to a target temperature, and inputting a monosaccharide solution from a liquid flow inlet of the reaction vessel and then collecting a solution containing a target product from a liquid flow outlet of the reaction vessel.

IPC Classes  ?

• B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
• B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
• B01J 8/06 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds in tube reactorsChemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the solid particles being arranged in tubes
• C07H 1/00 - Processes for the preparation of sugar derivatives
• C07H 3/02 - Monosaccharides

Abstract

n unit layers, and h is 1, 2 or 3.

IPC Classes  ?

• C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
• C04B 35/65 - Reaction sintering of free metal- or free silicon-containing compositions

Abstract

Disclosed is the use of a substituted silicon-based benzene sulfonate in the flame retardant modification of a semi-aromatic polymer material, wherein the substituted silicon-based benzene sulfonate has a structure as represented by formula (I) below, and the semi-aromatic polymer material is selected from a polymer material that contains aromatic groups and non-aromatic groups in the structure thereof and has an oxygen index of not less than 0.25. The substituted silicon-based benzene sulfonate is used as a flame retardant for semi-aromatic polymer materials, and the semi-aromatic polymer material can achieve excellent flame retardant effects with only a very small amount of the substituted silicon-based benzene sulfonate; furthermore, the structure of the substituted silicon-based benzene sulfonate is free of halogen, which is environmentally friendly; and the preparation method is simple with cheap raw materials, and is suitable for large-scale production and application. Also disclosed is a flame-retardant semi-aromatic polymer material containing the substituted silicon-based benzene sulfonate. The polymer material has a low production cost, a high flame retardant effect, a wide field of application, and extremely high economic benefit and value.

IPC Classes  ?

• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 5/54 - Silicon-containing compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 71/12 - Polyphenylene oxides
• C08L 81/06 - PolysulfonesPolyethersulfones
• C08L 61/06 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

Abstract

Disclosed is a composition, characterized in that the composition has a composition as represented by formula (1-1): B+cA formula (1-1), wherein B is selected from at least one compound of a chemical formula as represented by formula (1-2), A is selected from at least one of alcohols, amines, esters, ketones, ethers, nitriles, alkanes and cycloalkanes, and c is the ratio of A to B, and c = 0.0005-0.1. Also disclosed are a preparation method therefor and the use thereof.

IPC Classes  ?

• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 5/05 - AlcoholsMetal alcoholates
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

A flexible sensor and a preparation method therefor. The flexible sensor comprises a flexible substrate (1), electrodes (10), a liquid metal thin film (13), and a flexible encapsulation layer (11); the liquid metal thin film (13) is located on the flexible substrate (1), and is composed of surface oxidized liquid metal particles (8, 9); the flexible encapsulation layer (11) is located on the surface of the liquid metal thin film (13); the electrodes (10) are located on the flexible substrate (1) and are used to monitor electrical signals between certain regions of the liquid metal thin film (13); and under the action of an external force, the resistance between the electrodes (10) changes from high resistance to low resistance, and then the external force is determined to be a harmful external force. The present flexible sensor may sense external harmful action forces, and the integration of the sensor in electronic skin may expand the function of the electronic skin.

IPC Classes  ?

• G01L 1/20 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress

Abstract

A device for electrically driving a catalytic reaction and use thereof. The device comprises a reaction container providing a reaction site for a catalytic reaction and a mechanism for electrically driving a reaction. The reaction container has an inlet (2) for feeding a reactant and an outlet (3) for discharging a reaction product. The mechanism for electrically driving a reaction can form an electric field in the reaction container to drive a catalytic reaction. The reaction device can directly use electric power without needing an external heat source, thereby significantly enhancing the catalytic combustion efficiency of air pollutants and energy utilization efficiency.

IPC Classes  ?

• B01D 53/86 - Catalytic processes
• B01D 53/44 - Organic components

Abstract

A laser shock strengthening method and a system. The method comprises: first forming a water column (10) flowing towards an area to be processed on the surface of a workpiece (11); then injecting a flowing adsorption protective layer material (12) into the water column (10) to from an adsorption protective layer; and finally, acting a laser beam (2) to the adsorption protective layer after passing through the water column (10), and forming a shock wave to act on the surface of the workpiece (11). The method does not need to provide the adsorption protective layer in advance; by means of time sequence control of the adsorption protective layer material (12) and the laser beam (2), and enabling the adsorption protective layer to inject the laser beam (2) to the water column (10) after reaching the surface of the workpiece (11), the processing efficiency is improved, and the method can be used for processing the workpiece (11) having a complex shape or a narrow surface.

IPC Classes  ?

• C21D 10/00 - Modifying the physical properties by methods other than heat treatment or deformation

Abstract

Disclosed is a post-processing method for improving anti-wear and friction-reducing properties of a CrN coating. According to the method, the CrN coating is subjected to a thermal cycling treatment in a temperature range of −20° C. to 60° C. under a humidity environment of 60%-80% R.H. The post-processing method can substantially improve the anti-wear and friction-reducing properties of the CrN coating, so that friction pair parts deposited with the coating achieve a stable operation for a long time.

IPC Classes  ?

• C23C 14/58 - After-treatment
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/32 - Vacuum evaporation by explosionVacuum evaporation by evaporation and subsequent ionisation of the vapours

Abstract

Disclosed in the present application are a heptamethine carboxylindole cyanine dye and a preparation method and an application therefor, relating to the field of polymethine indole cyanine dyes and the preparation thereof. The structural formula of the heptamethine carboxylindole cyanine dye is shown in formula (I); the dye has the properties of near infrared light absorption and fluorescence development, and can be used as a probe auxiliary agent. The method comprises the following steps: 1) reacting raw materials comprising a 2,3,3-trimethyl-carboxylindole derivative and a nucleophilic substitution compound in vacuum conditions at a rising temperature to obtain an organic ammonium salt; and 2) reacting a solution containing the organic ammonium salt obtained in step 1) and a cyclo-olefin derivative at a rising temperature in closed conditions. The method has the advantages of a short synthesis route, an environmentally friendly solvent, simple processing, high yield, high purity, and preventing noble metal catalysis, and has high applicability and can be used to synthesise products of various structural types.

IPC Classes  ?

• C09B 23/10 - Methine or polymethine dyes, e.g. cyanine dyes characterised by the methine chain containing an even number of CH groups
• C07D 209/60 - Naphtho [b] pyrrolesHydrogenated naphtho [b] pyrroles
• G01N 21/64 - FluorescencePhosphorescence

Abstract

The present application relates to the fields of polymethylbenzylindole cyanine dyes and the preparation thereof, and disclosed thereby are a preparation method for a heptamethylbenzylindole cyanine dye and an application thereof. The method comprises the following steps: 1) reacting raw materials comprising a 2,3,3-trimethyl-4,5-benzoindole derivative and a nucleophilic substitution compound under vacuum conditions at an increased temperature to obtain an organic ammonium salt; 2) reacting the organic ammonium salt obtained in step 1) with a solution of a cycloolefin derivative at an increased temperature under closed conditions. The structural formula of the heptamethylbenzindole cyanine dye is as shown in formula (I). The dye has near-infrared light absorption and fluorographic properties, and can be used as a probe auxiliary. The method has the advantages of having a short synthesis route, having a friendly solvent environment, having a simple process, preventing noble metal catalysis, having high yield, having high purity, and so on, has high applicability, and can be used to synthesize products of various structure types.

IPC Classes  ?

• C09B 23/08 - Methine or polymethine dyes, e.g. cyanine dyes characterised by the methine chain containing an odd number of CH groups more than three CH groups, e.g. polycarbocyanines
• C07D 209/60 - Naphtho [b] pyrrolesHydrogenated naphtho [b] pyrroles
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• G01N 21/64 - FluorescencePhosphorescence
• A61K 49/00 - Preparations for testing in vivo

Abstract

Provided are a flying method and a flying device. The method adopts a medium (8) and a medium acceleration unit (13) on the surface of a planet; under the action of electricity, the medium acceleration unit (13) works, and transfers the medium (8) to the medium acceleration unit (13), the medium (8) is separated from the medium acceleration unit (13) after being accelerated at the medium acceleration unit (13), a reacting force is generated due to the conservation of momentum, and the reacting force overcomes the gravity of the planet and drives a load (1) to take off. The method is especially suitable for an environment where no atmosphere exists or the atmosphere is very thin, and it is impossible to fly with atmospheric buoyancy, for example, flying on the moon, Mars and the like, and the method breaks through obstacles of ground topography to scientific investigations, and expands the human ability to detect, investigate, and develop the moon, Mars and other planets.

IPC Classes  ?

• B64G 1/16 - Extraterrestrial cars

Abstract

A method for flying on Mars, using the medium of the surface of Mars and a medium acceleration unit; the medium acceleration unit operates under the action of electricity to deliver medium to the medium acceleration unit, and the medium leaves the medium acceleration unit after the medium acceleration unit is accelerated; a reaction force is produced due to the conservation of momentum, the reaction force being used for overcoming the gravity of Mars and driving a load to take off. Also comprising a Mars flight apparatus, comprising a power supply, a medium acceleration unit, and a medium storage unit; the medium acceleration unit operates to deliver medium to the medium acceleration unit, and the medium leaves the medium acceleration unit after the medium acceleration unit is accelerated; the produced reaction force is used for overcoming the gravity of Mars and driving a load to take off. The present method and apparatus are suitable for use in the environment of Mars, in which flight using atmospheric buoyancy cannot be implemented due to the lack of atmosphere, and can extend the ability of humans to probe, investigate, and develop Mars.

IPC Classes  ?

• B64D 27/02 - Aircraft characterised by the type or position of power plants

Abstract

Disclosed are a method for flight on the moon and a flight device using the method. A medium on the surface of the moon and a medium accelerating unit are adopted in the flight method. Under the action of electric power, the medium accelerating unit operates, and the medium is conveyed to the medium accelerating unit. The medium is accelerated in the medium accelerating unit and then is separated from the medium accelerating unit. Due to the conservation of momentum, a counterforce is generated, the counterforce overcomes the lunar gravitation, and the load is driven to take off. The method is suitable for the lunar environment where flight by means of atmospheric buoyancy cannot be achieved due to the shortage of atmosphere.

IPC Classes  ?

• B64G 1/40 - Arrangements or adaptations of propulsion systems
• B64G 1/42 - Arrangements or adaptations of power supply systems
• B64C 29/04 - Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis vertical when grounded characterised by jet-reaction propulsion
• F02K 99/00 - Subject matter not provided for in other groups of this subclass

Abstract

Disclosed are a method for preparing a graphene composite material, and a polymer coating. The method comprises first fixing PEDOT:PSS between LDH layers by means of an intercalation method to obtain an intermediate product of PEDOT:PSS-LDH, and then assembling the intermediate product PEDOT:PSS-LDH to graphene so as to encapsulate the graphene. The graphene composite material has a high resistance with respect to charge transfer during electrocorrosion, can inhibit galvanic corrosion, has good isolation and anticorrosion effects, and can be used as a filler for a polymer coating to obtain a coating having both corrosion resistance and self-repairing abilities, thereby possessing a good protective effect on a matrix.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C09D 129/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols

Abstract

A poly(2-aminothiazole)/graphene-epoxy composite coating comprises: a poly(2-aminothiazole)-modified graphene filler, an epoxy resin and an organic solvent. A preparation method of the coating comprises mixing a (2-aminothiazole)-modified graphene filler, an organic solvent, and an epoxy resin under the conditions of 20 to 150 °C. The coating is disposed on the surface of a substrate to form an anticorrosive coating.

IPC Classes  ?

• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins
• C09D 5/08 - Anti-corrosive paints
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

n+1n22, wherein M is Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, or other such elements, X is an element such as C and/or N, Y is Cl, Br, I, or other such elements, and n is 1, 2, 3 or 4. The preparation method comprises: mixing a precursor MAX phase material with a transition metal chloride, a transition metal bromide, or a transition metal iodide at a molar ratio of 1:3-1:10, putting the obtained mixture in an inert atmosphere for a high-temperature reaction at 400℃-800℃ for 1-48h, then performing post treatment to obtain the MXene material. The preparation method is simple and easy, and environment friendly, and the obtained MXene material has good application in fields such as electrode materials for electrochemical energy storage, super capacitor materials, electromagnetic absorption and shielding materials, and catalysts.

IPC Classes  ?

• C01G 23/00 - Compounds of titanium
• C01G 35/00 - Compounds of tantalum
• C01B 32/194 - After-treatment

Abstract

3222, wherein Re is a rare earth element. A use and a connecting method of a silicon carbide material. The method comprises: providing a connecting material at a connection interface of silicon carbide materials to be connected, and heating, so as to bond the silicon carbide materials to be connected into one whole.

IPC Classes  ?

• C04B 37/00 - Joining burned ceramic articles with other burned ceramic articles or other articles by heating

Abstract

Disclosed is a method for forming an amorphous carbon film (3) on the surface of a plastic matrix (1). The method involves: firstly, pre-treating the surface of the plastic matrix (1) with an argon plasma under an electric field, and then bombarding the surface of the plastic matrix (1) using carbon plasma sputtering to form the amorphous carbon film (3).

IPC Classes  ?

• C23C 14/02 - Pretreatment of the material to be coated
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering

Abstract

Disclosed by the present application is a continuous flow catalytic reactor, an assembling method therefor and an application thereof. The continuous flow catalytic reactor comprises a reaction container, a filler material packaged in the reaction container and a charged catalytic component; the catalytic component is fixed to the filler material under the action of a direct-current electric field. The continuous flow catalytic reactor may be applied to continuous flow reactions such as a monosaccharide epimerization reaction. The continuous flow catalytic reactor disclosed by the present application has the advantages of having a simple structure, being able to carry out unattended operation, facilitating safe operation, and the like. When the continuous flow catalytic reactor is applied to a continuous flow reaction process, catalytic components are fixed by a direct-current field and will not flow out along with a product, which eliminates a separation step for a catalyst, and improves the utilization efficiency of the catalyst.

IPC Classes  ?

• B01J 8/06 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds in tube reactorsChemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the solid particles being arranged in tubes
• B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
• B01J 23/28 - Molybdenum
• C07H 1/00 - Processes for the preparation of sugar derivatives
• C07H 3/02 - Monosaccharides

Abstract

The present disclosure discloses a hexagonal boron nitride epoxy compound anticorrosive paint, and a preparation method and use thereof. The anticorrosive paint mainly comprises hexagonal boron nitride, an oligoaniline or polyaniline nanofiber, an epoxy resin, a dispersing medium, a paint additive, an epoxy resin curing agent, and a solvent. The hexagonal boron nitride epoxy compound anticorrosive paint provided by the present disclosure has the advantages, such as good stability, simple preparation process, and low cost, does not tend to precipitate, is suitable for large-scale production, forms a coating that has excellent barrier properties and lasting corrosion resistance, and has very good application prospects in the industries, such as chemical industry, petroleum, electric power, shipping, light textile, storage, transport, and spaceflight.

IPC Classes  ?

• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins
• C09D 5/08 - Anti-corrosive paints
• C09D 7/65 - Additives macromolecular
• C09D 7/20 - Diluents or solvents
• C09D 7/40 - Additives
• C09D 7/63 - Additives non-macromolecular organic
• B32B 27/38 - Layered products essentially comprising synthetic resin comprising epoxy resins
• B32B 15/092 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising epoxy resins

Abstract

Disclosed are a flame retardant, a compound flame retardant, and a flame retardant polymer material comprising the compound flame retardant. The flame retardant is a phosphoric acid-arylphosphonic acid metal salt and/or a phosphorous acid-arylphosphonic acid metal salt, the phosphoric acid-arylphosphonic acid metal salt and the phosphorous acid-arylphosphonic acid metal salt both being in a layered single phase. The flame retardant overcomes the respective disadvantages of a phosphate (phosphite) salt and a phenylphosphonate salt in the prior art, especially the issues of the prior art in which the phosphate (phosphite) salt has poor compatibility with a polymer material and easily separates therefrom, and the phenylphosphonate salt flame retardant has a low flame retardant efficiency. The flame retardant can also increase the flame retardant effect of a dialkylphosphinate salt flame retardant on a polymer material. Further provided are a compound flame retardant comprising the flame retardant, and a flame retardant polymer material comprising the compound flame retardant.

IPC Classes  ?

• C08K 5/5317 - Phosphonic compounds, e.g. R—P(:O)(OR')2
• C08K 5/5393 - Phosphonous compounds, e.g. R—P(OR')2
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Disclosed are a preparation method for a DOPO vinylidene bridge chain derivative, a flame retardant and a flame retardant polymer, the method at least comprising the following steps: in a reaction system containing a DOPO-type compound and a cyclic carbonate, the DOPO-type compound and the cyclic carbonate reacting to obtain a DOPO vinylidene bridge derivative. The described method may highly efficiently and simply prepare DOPO vinylidene bridge derivatives while consuming little energy. Another aspect also provides a flame retardant containing a product prepared by the described method and a flame retardant polymer material containing the product prepared by the described method.

IPC Classes  ?

• C07F 9/6571 - Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'