Disclosed in the present application are a conductive particle, a PC conductive composite material, a preparation method and a plastic tape material. The conductive particle comprises a hard core body, a soft layer and a conductive layer, the soft layer coating the hard core body, and the conductive layer coating the surface of the soft layer. The conductive layer comprises carbon nanotubes, the carbon nanotubes being dispersed in the conductive layer. The core-shell structure of the different layers can enhance toughness, and improve the dispersity of the carbon nanotubes. Therefore, the conductive particle has good toughness, and good carbon nanotube dispersity, can uniformly conduct electricity, and can enhance toughness and avoid static electricity when being used for a plastic tape material. The preparation method comprises: carrying out first coating treatment of a paste containing a soft material on the surface of a hard core body so as to form a soft layer; and performing second coating treatment of a conductive material on the surface of the soft layer so as to form a conductive layer, thus obtaining a conductive particle, the conductive material comprising carbon nanotubes. The PC conductive composite material comprises PC and the conductive particles. The plastic tape material comprises a base layer and an anti-static layer, the anti-static layer containing the PC conductive composite material.
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
2.
POLYCARBONATE COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, POLYCARBONATE ANTISTATIC SHEET, AND POLYCARBONATE ANTISTATIC CARRIER TAPE
The present application discloses a polycarbonate composite material and a preparation method therefor, a polycarbonate antistatic sheet, and a polycarbonate antistatic carrier tape. In the polycarbonate composite material, polycarbonate is used as a main component, and is used in conjunction with carbon nanotubes, a compound dispersant, an antioxidant, a lubricant, and a toughening agent, the carbon nanotubes are used as conductive agents to replace conventional conductive materials, ensuring that no die ash will be generated in the process of manufacturing a sheet or a carrier tape, and cleanliness is high, and use of a compound dispersant system containing a mixture of a hydroxyl-terminated organic lubricant and an inorganic dispersant can improve the dispersion effect of the carbon nanotubes in the polycarbonate material, reduce surface resistivity, and ensure that the material has uniform conductivity; in addition, the toughening agent can improve mechanical properties, the antioxidant and the lubricant can ensure stable material properties, processing is easy, and the polycarbonate composite material having a low crystal point, uniform electric conduction and high cleanliness is obtained, thus facilitating wide application.
A polystyrene composite material and a preparation method therefor, a polystyrene antistatic sheet and a carbon nanotube aggregate. The polystyrene composite material comprises the following components in parts by weight: 80-95 parts of polystyrene; 10-20 parts of a styrene-acrylonitrile copolymer; 1-10 parts of a carbon nanotube aggregate; 1-3 parts of a toughening agent; 2-4 parts of a dispersing agent; 0-1 part of an antioxidant; 0-3 parts of a compatibilizer; and 0-3 parts of a surfactant. The carbon nanotube aggregate comprises array carbon nanotubes and winding carbon nanotubes that coat the surfaces of the array carbon nanotubes. By means of the combined action of all the components in the formula of the polystyrene composite material, a system in which carbon nanotube aggregates are uniformly dispersed is formed; therefore, the overall antistatic performance and the surface evenness and cleanliness of the polystyrene composite material are significantly improved, better facilitating the application of the polystyrene composite material to the field of electronic packaging.
The present application relates to the technical field of semiconductor packaging materials, and provides a conductive composite material and a preparation method therefor, and an antistatic sheet. The conductive composite material provided in the present application comprises the following components in parts by weight: 80-95 parts of a high-impact polystyrene; 1-5 parts of carbon nanotubes, 2-4 parts of a first dispersing agent, 1-3 parts of a toughening agent, and 0.1-1 part of an antioxidant, wherein the mesh number of the powder of the high-impact polystyrene is less than or equal to 3000 mesh; and the maximum particle size D1max of the carbon nanotubes is less than or equal to 200 μm. The high-impact polystyrene conductive composite material containing carbon nanotubes provided in the present application has a relatively low cost, and the carbon nanotubes have very good dispersity in the high-impact polystyrene, thereby ensuring the performance of the conductive composite material.
Preparation methods for and uses of a carbon nanotube dispersion and a polystyrene composite material. The carbon nanotube dispersion is in a solid-like state, is convenient to feed, is suitable for an extrusion molding process of a polystyrene composite material, and comprises carbon nanotubes and a complex salt loaded with the carbon nanotubes, wherein the complex salt can adsorb the carbon nanotubes, so that the carbon nanotubes can be uniformly dispersed in a polystyrene melt extrusion process, are kept in a dispersed state for a long time, and are not prone to agglomeration. Adjusting the mass ratio of the carbon nanotubes to the complex salt can enable the interaction between the carbon nanotubes and the complex salt to be in a good balanced state, facilitating improvement of the dispersity of the carbon nanotubes so as to increase the density and content of the carbon nanotubes in the carbon nanotube dispersion. The carbon nanotubes in the carbon nanotube dispersion have high content and good dispersity.
C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
A preparation method for a composite carbon nanotube film, a composite carbon nanotube film, and a layered heating device. The preparation method for a composite carbon nanotube film comprises the following steps: obtaining a carbon nanotube base membrane (120), the carbon nanotube base membrane (120) comprising a carbon nanotube film or a plurality of carbon nanotube films stacked to each other, the carbon nanotube film having aligned first carbon nanotubes; obtaining a carbon nanotube slurry, the carbon nanotube slurry comprising a solvent, and a second carbon nanotube and a binder that are uniformly dispersed in the solvent; and coating the surface of the carbon nanotube base membrane (120) with the carbon nanotube slurry, and removing the solvent in the carbon nanotube slurry to prepare the composite carbon nanotube film. The composite carbon nanotube film prepared by the preparation method successfully achieves the use of an oriented carbon nanotube film as a composite carbon nanotube film of a substrate, and the conductivity of the composite carbon nanotube film is significantly higher than that of a conventional carbon nanotube film.
B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
The present application provides a gas cylinder (100) and a manufacturing method therefor. The gas cylinder (100) comprises a resin liner (10) and a reinforcing layer (20) wound and fixed on the outer side of the resin liner (10); the resin liner (10) is made of a composite material obtained by uniformly dispersing carbon nanotubes in a thermoplastic resin; and the carbon nanotubes accounts for 0.01-10wt% of the resin liner (10). In the gas cylinder (100) of the present application, the carbon nanotubes are uniformly mixed into the thermoplastic resin, such that a network structure of carbon nanotubes can be formed in the resin liner (10) obtained, thereby increasing the mechanical strength of the resin liner (10), shortening the production time, lowering the production cost, reducing the thermal expansion coefficient of the thermoplastic resin, preventing formation of gaps between the resin liner (10) and the reinforcing layer (20) and thus prolonging the service life of the gas cylinder (100), increasing the thermal conductivity of the resin liner (10), saving the manufacturing and maintenance costs of devices, lowering the installation space requirement, increasing the electrical conductivity of the resin liner (10), and preventing static electricity accumulation of the gas cylinder (100) and thus lowering the gas explosion risk.
A self-repairing gas storage tank system (100) and a new energy vehicle, the system comprising a tank body (10) and an activation device (20). The tank body (10) comprises an inner liner (11), a reinforcement layer (12) and gap filling units (13). The reinforcement layer (12) covers the outer peripheral wall of the inner liner (11). The gap filling units (13) are filled in the reinforcement layer (12). The activation device (20) is used to activate the gap filling units (13) in the reinforcement layer (12). By means of filling the gap filling units (13) in the reinforcement layer (12), the activation device (20) can reinforce the inner liner (11) again by means of activating the gap filling units (13) in the reinforcement layer (12) so as to increase the service life of the tank body (10) and the service life and safety performance of the new energy vehicle.
A control method for fiber winding and curing, and a light-curing fiber winding device. The control method for fiber winding and curing comprises the following steps: obtaining a feedback value at an illumination position by means of illumination, and comparing the feedback value at the illumination position and a preset threshold to determine whether a component is wound by a fiber (40) at the illumination position according to a preset program; if not, adjusting an illumination parameter of illumination light required for light curing and/or adjusting a winding parameter of the fiber (40) in the preset program, and continuing to wind the component (50) with the fiber (40). Winding and curing of the fiber (40) are performed synchronously, thereby significantly shortening the curing time, simplifying the curing process, and improving the winding efficiency of the fiber (40). Moreover, an illumination method is used to monitor the condition in the winding process of the fiber (40) to adjust the illumination intensity parameter and/or the winding parameter in a timely fashion, thereby improving the overall strength of the component (50) wound by the cured fiber (40).
B29C 63/06 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
10.
GAS STORAGE DEVICE AND METHOD FOR CONTROLLING SAME, AND NEW ENERGY CARRIER
A gas storage device and a method for controlling same, and a new energy carrier. The method for controlling a gas storage device comprises the following steps: acquiring, in real time, gap feedback information of a winding position, and comparing the gap feedback information with a preset threshold to determine whether there is a gap at the winding position; and if so, increasing a current delivered to a high-conductivity fiber reinforced layer (20), so that the field strength of an electromagnetic field generated by the high-conductivity fiber reinforced layer (20) increases, and a magnetic liner (10) is attracted to be attached to the high-conductivity fiber reinforced layer (20). Therefore, the field strength of a magnetic field generated by a high-conductivity fiber reinforced layer (20) can increase, and a magnetic liner (10) is attracted to be attached to the high-conductivity fiber reinforced layer (20), such that a gap between the high-conductivity fiber reinforced layer (20) and the magnetic liner (10) can be eliminated, and the high-conductivity fiber reinforced layer (20) is tightly attached to the magnetic liner (10), thereby improving the high-pressure resistance performance and the usage safety of a gas storage tank (50) formed by winding the high-conductivity fiber reinforced layer (20) around the magnetic liner (10).
A control method for fiber winding and curing, and a fiber winding and manufacturing device. The control method for fiber winding and curing comprises the following steps: obtaining winding feedback information of a fiber (50) at each winding position, and comparing the winding feedback information with a preset threshold to determine whether the fiber (50) is wound according to a preset program; and if not, adjusting a winding parameter of the fiber (50) in the preset program to correct a winding position deviation of the fiber (50), and curing the fiber (50).
B29C 70/16 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length
B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
B29C 53/56 - Winding and joining, e.g. winding spirally
Disclosed is a method for preparing a fiber fabric reinforced composite material, the method comprising the steps: sequentially arranging a first demolding layer and a conductive heating fiber fabric on the surface of a mold, and arranging a conductive adhesive, communicated with an external power source, at two opposite side edges of the conductive heating fiber fabric; arranging a second demolding layer and a vacuum bag on the surface of the conductive heating fiber fabric to form a sealed space, vacuumizing the sealed space, then injecting a resin to enable the resin to completely infiltrate the conductive heating fiber fabric, then energizing the conductive heating fiber fabric through the conductive adhesive, heating the conductive heating fiber fabric after being energized to enable the resin to be cured and molded; and demolding same to obtain the fiber fabric reinforced composite material. In the preparation method, the conductive heating fiber fabric is not only used as a reinforcement of the composite material, but also provides a uniform curing temperature for the resin by energizing and heating the conductive heating fiber fabric; the method has a simplified process and a simple preparation process, and is suitable for industrial large-scale production and application.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
13.
CARBON NANOTUBE HEATING FABRIC AND PREPARATION METHOD THEREFOR
A method for preparing a carbon nanotube heating fabric, comprising the steps of: acquiring a carbon nanotube thin film from a carbon nanotube array and twisting same to make carbon nanotube fiber filaments, and combining a prescribed number of the carbon nanotube fiber filaments into carbon nanotube fiber bundles; spinning the carbon nanotube fiber bundles to obtain a carbon nanotube fabric, or mixing and spinning the carbon nanotube fiber bundles and yarn to obtain a carbon nanotube fabric; and providing conductive structures at two opposite sides of the carbon nanotube fabric so as to obtain a carbon nanotube heating fabric. In the preparation method for the carbon nanotube heating fabric, the carbon nanotube heating fabric is powered on by means of two opposite conductive sides, which may make the temperature of the fabric rise instantaneously, and the fabric temperature is stable. The carbon nanotube heating fabric may be widely used in apparel, home textiles, and any field that requires soft, thin, and denatured heating fabric that may be bent at will.
H05B 3/10 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
H05B 3/34 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
D01F 9/12 - Carbon filamentsApparatus specially adapted for the manufacture thereof
14.
CARBON NANOTUBE FIBER COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Provided is a preparation method for a carbon nanotube fiber composite material, comprising the following steps: mixing a carbon nanotube fiber fabric with a thermosetting resin solution to prepare a carbon nanotube fiber fabric impregnated with the thermosetting resin solution; and performing curing treatment on the carbon nanotube fiber fabric impregnated with the thermosetting resin solution to obtain a carbon nanotube fiber fabric/thermosetting resin composite material. According to the method, the carbon nanotube fiber fabric is used as a reinforcement body, thereby avoiding agglomeration of carbon nanotube powder in a thermosetting resin and maximizing the reinforcement function of carbon nanotubes. The composite material prepared with the method is a fiber fabric formed by compounding the carbon nanotube fiber fabric and the thermosetting resin, and has good mechanical properties.
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
patents