A corridor pavement material for an electronically guided rubber-tyred system. The corridor pavement material for the electronically guided rubber-tyred system comprises a grouting material and a porous asphalt mixture matrix; the grouting material is composed of powder and water, wherein the powder in the grouting material comprises cement, an elastomeric latex, an active filler, a water reducing agent, a reinforcing agent, a stabilizer and conductive particles; the porous asphalt mixture matrix comprises aggregate, asphalt, a surface active binder and fibers; the porosity of the porous asphalt mixture matrix is 10%-28%; and the composite gradation of matrix aggregate is controlled. A cement-asphalt composite material is used, the flexibility of asphalt and the rigidity of cement are both achieved, the material strength and proportion are appropriate, the rigidity of a rigid material matches that of a flexible material, and the adhesive force is good; and by controlling the gradation of aggregate and by means of a reasonable rolling process, excellent rutting resistance and durability are achieved under heavy load of a system vehicle, complete channelization and multiaxial loading.
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
2.
COMPOSITE MODIFIED PILLARED MATERIAL AND PREPARATION METHOD THEREFOR, AND FLUORIDE-FREE AND ALKALI-FREE ACCELERATOR BASED THEREON AND PREPARATION METHOD THEREFOR
The present invention belongs to the technical field of concrete admixtures. Disclosed are a composite modified pillared material modified with a hyperbranched quaternary ammonium salt, and a preparation method therefor. According to the composite modified pillared material, a hyperbranched quaternary ammonium salt having a specific structure is used as a modified material, and differs from a common modified material having a long-chain structure since the material itself contains a branched structure, thereby ensuring that after an orthorhombic pillared material is intercalated, the interlayer spacing is larger, and the CEC capacity is higher. Further disclosed in the present invention are a fluoride-free and alkali-free accelerator comprising the composite modified pillared material as a stabilizer, and a preparation method therefor. Compared with a traditional alkali-free accelerator, the fluorine-free and alkali-free accelerator increases the use amount of aluminum sulfate therein to 10% or above, such that the supersaturation degree of an accelerator solution system is significantly increased, and the excellent effect of the fluorine-free and alkali-free accelerator in a concrete material is ensured.
C04B 24/28 - Composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
The present disclosure discloses an organic silicon nano-precursor medium transmission inhibitor and its preparation method and use. The organic silicon nano-precursor medium transmission inhibitor is composed of an organic silicon and its derivatives, a catalyst, a dispersant, a stabilizer, a surfactant, and water. The organic silicon nano-precursor medium transmission inhibitor in-situ generates nanoparticles during a hydration process. The nanoparticles not only have a hydrophobic function, but also can effectively fill the pores of the concrete, which effectively solves a problem in which a hydrophobic material in a state of full water cannot reduce the diffusion of an erosive medium. The problems such as uneven dispersion and poor stability of nanoparticles added can be effectively solved by in-situ generating the nanoparticles, thereby effectively improving the ion corrosion resistance performance of the concrete.
C04B 24/42 - Composés comportant au moins une liaison carbone-silicium
C04B 24/28 - Composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
An organic-inorganic composite toughening material, comprising a polymerization monomer, a cross-linking agent, an initiator and a micro-interface enhancer, wherein the polymerization monomer is selected from any one or a mixture of acrylamide, an acrylate and a methacrylate; and the micro-interface enhancer is selected from any one or a mixture of nano-wollastonite, calcium carbonate whiskers and calcium sulfate whiskers. When the organic-inorganic composite toughening material is used in concrete, the polymerization monomer is polymerized in situ in the cement concrete under the action of the initiator and the cross-linking agent to form a high-molecular polymer, wherein the polymerization monomer accounts for 1-5% of the mass of the cement. A concrete prepared from the composite toughening material has an improved bending stress resistance and fracture resistance performance without affecting or reducing the compressive strength, thereby improving the problems of low flexural strength, poor toughness, etc., of existing concrete materials.
A microcapsule type polycarboxylate superplasticizer and a preparation method thereof. The microcapsule type polycarboxylate superplasticizer is a polycarboxylic acid aqueous solution encapsulated by a closed capsule, and the closed capsule is an organic/inorganic composite shell layer of calcium ion gel of sodium alginate or gelatin, and calcium carbonate. The organic/inorganic composite shell layer is obtained through diffusion-interface reaction of sodium alginate or gelatin, calcium salt and urea under the catalysis of urease. The microcapsule type polycarboxylate superplasticizer meets requirement of long-term and stable slump retaining of concrete in some special engineering. The preparation method has simple processes, free of organic solvent, and has high encapsulating efficiency. The microcapsule type polycarboxylate superplasticizer utilizes the protective effect and swelling effect of the capsule shell layer to slowly release the polycarboxylate superplasticizer to supplement adsorption at a later stage, so as to achieve the object of long-term and stable slump retaining.
Bote Building Materials (Tianjin) Co.,Ltd. (Chine)
Inventeur(s)
Liu, Jiaping
Shu, Xin
Ran, Qianping
Yang, Yong
Wang, Tao
Zhang, Qianqian
Liu, Jianzhong
Zhou, Dongliang
Abrégé
Providing a multi-functional group superplasticizer for an ultra-high performance concrete and a method for preparing the same. Its backbone is an alkyl chain, and its side chain are some side chains with carboxylic acid or carboxylate at terminals, some polyether side chains, and some polyol amine side chains substituted with phosphoric acid or phosphite at terminals, the polyol amine side chains substituted with phosphoric acid or phosphite at terminals is connected to the backbone through a phenyl or an alkyl group of 1-9 carbons, and a ratio of a number of the side chains with carboxylic acid or carboxylate at terminals to a total number of side chains is ≥0 and ≤0.8; and a ratio of a number of the polyether side chains to the total number of side chains is ≥0.1 and ≤0.9.
C08F 283/08 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals sur des polyoxyphénylènes
Disclosed in the present invention are a polyhydroxy aromatic intermediate, a preparation method therefor, and an application thereof in a polycondensate water reducer containing a branched side chain. The polycondensate water reducer containing the branched side chain is of a branched side chain structure and has a better steric hindrance effect; the synergistic effect of the branched side chain and a rigid aromatic ring framework enables the water reducing capability to be greatly improved, and especially under the condition of a low water-to-cement ratio, improvement of the water reducing capability is more significant; a branched polyether side chain is more beneficial to forming a thicker water film layer, which has a remarkable viscosity reduction effect; a conformation of the branched polyether side chain is less affected by different ion environments in a cement pore solution, and thus is more adaptable to various raw materials; and the polycondensate water reducer containing the branched side chain is suitable for preparing high-strength concrete, self-compacting concrete, and concrete having a low water-binder ratio and high-dosage mineral admixtures, and is especially suitable for preparing concrete containing manufactured sand.
C08G 65/335 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant du phosphore
C08G 65/26 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir d'éthers cycliques par ouverture d'un hétérocycle à partir d'éthers cycliques et d'autres composés
8.
POLYHYDROXY AROMATIC INTERMEDIATE, PREPARATION THEREOF AND USE THEREOF IN POLYCONDENSATE WATER-REDUCER WITH BRANCHED SIDE CHAINS
The present application discloses a polyhydroxy aromatic intermediate, preparation thereof and use thereof in a polycondensate water-reducer with branched side chains. The polycondensate water-reducer with branched side chains has a branched side chain structure which provides a stronger steric hindrance. The synergistic effect of the branched side chains and the rigid skeleton of the aromatic ring greatly improves the water-reducing ability. Especially under a condition of low water/cement ratio, the improvement in water-reducing ability is more obvious. The branched polyether side chain is more conducive to the formation of a thicker water film layer, which has an obvious viscosity reduction effect. The conformation of the branched polyether side chain is less affected by different ionic environments in the pore solution in cement, and thus has a stronger adaptability to various raw materials. The water-reducer is suitable for the preparation of high-strength concrete, self-compacting concrete and concrete with low water-to-binder ratio and high volume of mineral admixtures, especially for the preparation of concrete containing machine-made sand.
C08G 61/10 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aromatiques, p. ex. polyphénylènes
C07C 43/23 - Éthers une liaison sur l'oxygène de la fonction éther étant sur un atome de carbone d'un cycle aromatique à six chaînons contenant des groupes hydroxyle ou O-métal
C07C 41/09 - Préparation d'éthers par déshydratation de composés contenant des groupes hydroxyle
C04B 24/28 - Composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
9.
Multifunctional cement hydration heat control material and manufacturing method therefor
Disclosed are a multifunctional cement hydration heat control material and a manufacturing method therefor. The cement hydration heat control material in is a comb polymer having three side chain structures, the three side chain structures are respectively a carboxyl group, a sugar alcohol group, and a polyether structure, and the main chain of the polymer is a carbon chain structure formed by free-radical polymerization of a double bond in a double bond compound monomer. The multifunctional cement hydration heat control material can achieve integration of cement hydration heat control performance, water reduction performance, and shrinkage reduction performance in a same molecule, can achieve control focusing on a performance by means of structural adjustment, does not need multi-component compounding during use, and is more convenient. The control material is non-toxic and water-soluble, can be made to have an appropriate concentration, and is convenient to use.
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C08F 216/20 - Monomères contenant au moins trois atomes de carbone dans le radical aliphatique non saturé
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
Inventeur(s)
Liu, Jiaping
Huang, Zhen
Yang, Yong
Ran, Qianping
Shu, Xin
Li, Shentong
Yan, Han
Zhao, Hongxia
Abrégé
The present invention discloses a polycarboxylic acid water-reducing agent with high adaptability to temperature and a method for preparing the same. The polycarboxylic acid water-reducing agent is prepared by introducing an unsaturated macromonomer D with a temperature-sensitive side chain which could be bonded to the backbone of the polycarboxylic acid through free radical polymerization. The polycarboxylic acid water-reducing agent prepared by the invention has an adsorption group density that can be automatically adjusted with the change of ambient temperature, and thereby shows similar dispersing capability and dispersion retention capability at different ambient temperatures, demonstrating high adaptability to different ambient temperatures. It can be used in a larger temperature range with a constant dosage, which is beneficial to further popularization and application of the polycarboxylic acid water-reducing agent in regions of different climates.
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
A microcapsule type polycarboxylate superplasticizer and a preparation method therefor. The microcapsule type polycarboxylate superplasticizer is a polycarboxylate aqueous solution encapsulated by a closed capsule; the closed capsule is an organic/inorganic composite shell layer made from a calcium ion gel of sodium alginate or gelatin and calcium carbonate; and the organic/inorganic composite shell layer is obtained by means of a diffusion-interface reaction of sodium alginate or gelatin with calcium salt and urea under the catalysis of urease. The microcapsule type polycarboxylate superplasticizer can meet the requirements of long-term and stable slump retention of concrete in some special projects at present. Steps of the preparation method are simple, no organic solvent is used, and the encapsulation efficiency is high. For the microcapsule type polycarboxylate superplasticizer, the protection and swelling functions of a capsule shell layer enables slow release of the polycarboxylate superplasticizer, thereby guaranteeing the adsorption performance in the later period, thus achieving the purpose of long-term and stable slump retention.
An organic silicon nanoprecursor medium transmission inhibitor, a preparation method therefor and use thereof. The organic silicon nanoprecursor medium transmission inhibitor consists of organic silicon and derivatives thereof, a catalyst, a dispersant, a stabilizer, a surfactant and water. The organic silicon nanoprecursor medium transmission inhibitor generates nanoparticles in situ during hydration. The nanoparticles not only have a hydrophobic function, but also can fill pores of concrete, solving the problem that a hydrophobic material cannot reduce the diffusion of corrosive medium under a water-saturated state. By means of the in-situ generation of the nanoparticles, the problems of uneven dispersion, poor stability and the like existing in added nanomaterial can be solved.
C08L 83/00 - Compositions contenant des composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant uniquement du silicium, avec ou sans soufre, azote, oxygène ou carboneCompositions contenant des dérivés de tels polymères
13.
MULTIFUNCTIONAL SUPERPLASTICIZER FOR ULTRA-HIGH PERFORMANCE CONCRETE AND PREPARATION METHOD THEREFOR
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
Inventeur(s)
Liu, Jiaping
Shu, Xin
Ran, Qianping
Yang, Yong
Wang, Tao
Zhang, Qianqian
Liu, Jianzhong
Zhou, Dongliang
Abrégé
Disclosed are a multifunctional superplasticizer for ultra-high performance concrete and a preparation method therefor. The main chain of the multifunctional superplasticizer for ultra-high performance concrete is an alkyl chain. As for the side chains, in addition to several side chains with a carboxylic acid or a carboxylate salt at the end and several polyether side chains, the multifunctional superplasticizer further has several polyol amido side chains with the end substituted with phosphoric acid or phosphorous acid. The polyol amido side chains with the end substituted with phosphoric acid or phosphorous acid are linked to the main chain via a phenyl or an alkyl with 1-9 carbons. In addition, the ratio of the number of side chains with a carboxylic acid or a carboxylate salt at the end with respect to the total number of side chains is greater than or equal to zero and ≤ 0.8, and the ratio of the number of polyether side chains with respect to the total number of side chains is ≥ 0.1 and ≤ 0.9. The superplasticizer for ultra-high performance concrete comprehensively enhances the adhesion capability to all cementitious materials, thus weakening the particle friction. Compared with the prior art, the present invention remarkably improves the fluidity of ultra-high performance concrete, and reduces the viscosity thereof.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
C08F 30/02 - Homopolymères ou copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
The present invention discloses a multitype-adsorptive-group polycarboxylic acid water-reducing agent, consisting of 30-60 wt % of a macromolecule with multitype-adsorptive groups and water, the macromolecule with multitype-adsorptive groups has a polyethylene glycol side chain, and adsorption groups of the polymer backbone include a carboxylic acid group, a sulfonic acid group and a phosphoric acid group, the phosphoric acid group being linked to the backbone of the macromolecule with multitype-adsorptive groups by nucleophilic addition. The water-reducing agent of the present invention has significantly improved adaptability to different cements and aggregates while maintaining a high water reduction efficiency, compared with the conventional polycarboxylic acid water-reducing agent agent. It has a good water reducing efficiency in many different grades of cement, as well as a better resistance to aggregates containing more impurities such as machine-made sand.
Disclosed are a method for separately preparing light magnesium oxide and calcium oxide by using dolomite and an application thereof in preparation of a calcium-magnesium composite expanding agent. In the method for preparing light magnesium oxide and calcium oxide, based on the difference in decomposition temperature between magnesium carbonate and calcium carbonate during the calcination and decomposition of dolomite and the difference in the weight of the materials after decomposition, the effective separation of magnesium oxide and calcium oxide is realized by a one-step method, thus separately preparing light magnesium oxide and light calcium oxide. The calcium-magnesium composite expanding agent is prepared by using the foregoing light magnesium oxide and calcium oxide. On the one hand, the present invention solves the problem of the limited origin of the light magnesium oxide raw material of the magnesium expanding component in the calcium-magnesium composite expanding agent.
BOTE NEW MATERIALS TAIZHOU JIANGYAN CO., LTD. (Chine)
Inventeur(s)
Shu, Xin
Ran, Qianping
Yang, Yong
Wang, Xiumei
Liu, Jinzhi
Zhang, Jiangang
Zhao, Hongxia
Abrégé
Disclosed is an amphiphilic multifunctional hybrid nanoparticle. The nanoparticle of the present invention has a detachable hydrophilic organic polymer with both a water-soluble long chain and a hydrophobic long hydrocarbon functional group attached to the surface, wherein the body of the nanoparticle is a silica or an organofunctional group substituted silica or an organofunctional group substituted silicon-oxygen bond network, and the nanoparticle contains a free organosiloxane with hydrophobic long hydrocarbon functional groups and a fatty acid or fatty acid ester or aluminum complex of fatty acid with hydrophobic long hydrocarbon functional groups. The nanoparticle can reduce the water permeability of the cement-based material; the cement-based material has the internal hydration products and interfaces are hydrophobized, further reducing the possibility that the harmful particles erode the cement-based material through moisture penetration; furthermore, Si—Al oxides participate is beneficial to the improvement of its mechanical properties.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C08F 292/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des substances inorganiques
C08K 9/04 - Ingrédients traités par des substances organiques
C08K 9/06 - Ingrédients traités par des substances organiques par des composés contenant du silicium
C08K 9/08 - Ingrédients agglomérés par traitement avec un liant
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
BOTE NEW MATERIALS TAIZHOU JIANGYAN CO., LTD. (USA)
Inventeur(s)
Zhai, Shuying
Yang, Yong
Zhou, Dongliang
Shu, Xin
Ran, Qianping
Yan, Han
Zhao, Hongxia
Abrégé
Disclosed is a preparation method of a polycarboxylate water reducer having a regular sequence structure. The preparation method of the present invention comprises: performing Michael addition on polyethylene glycol ether acrylate macromonomer A and amino-containing carboxylic acid B for 5-12 hours, then cooling to 0° C., dropwise adding acryloyl chloride slowly and evenly, and further reacting for 12 hours at room temperature to obtain carboxyl-containing polyether macromonomer C; mixing the carboxyl-containing polyether macromonomer C, a small molecular RAFT reagent, an initiator, and water adequately; and holding the polymerization mass concentration at 30%-60% and heating to 60-80° C. in the atmosphere of N2 to react for 2-5 hours to obtain the polycarboxylate water reducer having a regular sequence structure.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C08K 5/39 - Acides thiocarbamiquesLeurs dérivés, p. ex. dithiocarbamates
METHOD FOR PREPARING MAGNESIUM OXIDE LIGHT AND CALCIUM OXIDE LIGHT AND APPLICATION THEREOF IN PREPARATION OF CALCIUM-MAGNESIUM COMPOSITE EXPANDING AGENT
Method for preparing magnesium oxide light and calcium oxide light using dolomite and application thereof in the preparation of a calcium-magnesium composite expanding agent. Magnesium oxide and calcium oxide are effectively separated by a one-step method using a decomposition temperature difference bewteen magnesium oxide and calcium oxide during a dolomite calcination decomposition process and a difference in the weight of the decomposed material. The preparation of a calcium-magnesium composite expanding agent using magnesium oxide light and calcium oxide light resolves the problem of limitations in the origin of a magnesium expanding ingredient in the calcium-magnesium composite expanding agent, i.e., the magnesium oxide light, and the problem of quick hydration reaction rate and low effective expanding efficiency of a calcium expanding ingredient in the calcium-magnesium composite expanding agent, i.e., free calcium oxide, thereby optimizing an expanding process of directly calcinating dolomite to produce a calcium-magnesium composite expanding agent.
Disclosed in the present application are a multifunctional cement hydration heat control material and a manufacturing method therefor. The cement hydration heat control material in the present application is a comb polymer having three side chain structures, the three side chain structures are respectively a carboxyl group, a sugar alcohol group, and a polyether structure, and the main chain of the polymer is a carbon chain structure formed by free-radical polymerization of a double bond in a double bond compound monomer. The multifunctional cement hydration heat control material prepared in the present application can achieve integration of cement hydration heat control performance, water reduction performance, and shrinkage reduction performance in a same molecule, can achieve control focusing on a performance by means of structural adjustment, does not need multi-component compounding during use, and is more convenient. The control material provided by the present application is non-toxic and water-soluble, can be made to have an appropriate concentration, and is convenient to use.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
C08F 216/14 - Monomères contenant un seul radical aliphatique non saturé
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
20.
HIGH-ADAPTABILITY VISCOSITY-REDUCING POLYCARBOXYLIC ACID WATER REDUCER, PREPARATION METHOD THEREFOR AND USE THEREOF
Disclosed is a high-adaptability viscosity-reducing polycarboxylic acid water reducer, which is composed of 30-50 wt% of a polymer and water, wherein the polymer has a main chain containing a hydrophobic benzene ring and a hydrophilic amine, has a stronger rigidity and a good solubility in an aqueous solution, and is rich in two adsorption groups of carboxyl/phosphono groups. A method for preparing the high-adaptability viscosity-reducing polycarboxylic acid water-reducer involves first preparing a main chain polymer synthesized from hydroxybenzoic acid, phenylphosphonic acid monomers, a polyamine compound and an alkyl aldehyde, and then introducing a macromonomer polyether side chain, so as to obtain the high-adaptability viscosity-reducing polycarboxylic acid water reducer. Also disclosed is the use of the high-adaptability viscosity-reducing polycarboxylic acid water reducer, wherein the doping amount thereof is 0.05%-0.3% of the total mass of a cementitious material. The high-adaptability viscosity-reducing polycarboxylic acid water reducer has a strong adaptability to concrete materials, and also can effectively reduce the viscosity of high-strength concrete.
Disclosed is a multiple adsorption polycarboxylic acid water-reducer, which is composed of 30-60% wt of a macromolecule with multiple adsorption functional groups and water, wherein the macromolecule with multiple adsorption functional groups has a polyethylene glycol side chain, and the adsorption groups of the polymer main chain thereof comprise a carboxylic acid group, a sulfonic acid group and a phosphonic acid group, the phosphonic acid group being linked to the main chain of the macromolecule with multiple adsorption functional groups by means of nucleophilic addition. The adaptability to different cements and aggregates of the water-reducer is significantly improved while maintaining a high water reduction efficiency, compared with a traditional polycarboxylic acid water-reducer. The water-reducer can have a better water reduction efficiency in many different grades of cements, and at the same time, has a better resistance to aggregates with more impurities such as machine-made sand.
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
Inventeur(s)
Liu, Jiaping
Huang, Zhen
Yang, Yong
Ran, Qianping
Shu, Xin
Li, Shentong
Yan, Han
Zhao, Hongxia
Abrégé
Provided are a polycarboxylic acid water-reducing agent with high adaptability to temperature and a preparation method therefor. The polycarboxylic acid water-reducing agent is prepared by introducing an unsaturated macromonomer D having a temperature-sensitive side chain in the synthetic process of the polycarboxylic acid water-reducing agent, and binding to a polycarboxylic acid main chain by means of free radical polymerization due to an unsaturated double bond, and on the other hand, the polycarboxylic acid water-reducing agent contains the temperature-sensitive side chain. The density of adsorption groups of the prepared polycarboxylic acid water-reducing agent can be automatically adjusted with the change in ambient temperature, and accordingly, the polycarboxylic acid water-reducing agent has approximate dispersion and dispersion retention capacities in different ambient temperatures, and has high adaptability to different ambient temperatures, and can be used in a large temperature range with the amount of admixture unchanged, facilitating further promotion and application of the polycarboxylic acid water-reducing agent in different climatic regions.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C08F 283/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polycarbonates ou des polyesters saturés
C08G 63/91 - Polymères modifiés par post-traitement chimique
C08G 63/664 - Polyesters contenant de l'oxygène sous forme de groupes éther dérivés d'acides hydroxycarboxyliques
C08G 69/48 - Polymères modifiés par post-traitement chimique
C08G 69/40 - Polyamides contenant de l'oxygène sous forme de groupes éther
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
23.
Phosphonato block polymer, preparation method therefor and application thereof
Embodiments of the invention relate to concrete admixtures, provide a phosphonato block polymer, a preparation method and an application. The method includes: the phosphonato block polymer prepared by copolycondensating an ether-type segment A, a phosphonato segment B, and a third part of aldehyde C. The ether-type segment A is obtained by polycondensating a polyether monomer and a first part of aldehyde C. The phosphonato segment B is obtained by polycondensating a monomer b containing phosphonato, a monomer c, and a second part of aldehyde C in an aprotic weak polar solvent E. By preparing a block polymer using arylalkane as a main chain and using a phosphonic acid or phosphinic acid functional group as an adsorption group, the invention improves the resistance of the block polymer to sulfate and clay interference, and can achieve initial high dispersion of concrete with a low water-cement ratio and decreasing of the system viscosity.
BOTE NEW MATERIALS TAIZHOU JIANGYAN CO., LTD. (Chine)
Inventeur(s)
Shu, Xin
Ran, Qianping
Yang, Yong
Wang, Xiumei
Liu, Jinzhi
Zhang, Jiangang
Zhao, Hongxia
Abrégé
Disclosed is an amphipathic multifunctional hybrid nanoparticle. The surface of the particle is attached with both a detachable hydrophilic organic polymer having a water-soluble long chain, and a hydrophobic long hydrocarbon functional group. The main body of the nanoparticle is silicon dioxide or an organic functional group substituted silicon dioxide or an organic functional group substituted silicon-oxygen bond network. The inside of the nanoparticle contains a free organosiloxane having a hydrophobic long hydrocarbon functional group, and a fatty acid or a fatty acid ester or a fatty acid aluminium complex having a hydrophobic long hydrocarbon functional group. The nanoparticle significantly decreases the water permeability of cement-based materials. Hydration products and interfaces within a cement-based material which uses the hybrid nanoparticle are subject to hydrophobisation, further reducing the possibility of harmful particles corroding the cement-based material via water permeation, and thus significantly improving the impermeability. In addition, Si-Al oxides participate in hydration reactions, and the matrix of the cement-based material is compacted, which helps to improve the mechanical performance.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C08F 220/28 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle ne contenant pas de cycles aromatiques dans la partie alcool
C08F 216/14 - Monomères contenant un seul radical aliphatique non saturé
C08F 230/08 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant un métal contenant du silicium
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
NANJING BOTE NEW MATERIALS CO., LTD. (Chine)
BOTE NEW MATERIALS TAIZHOU JIANGYAN CO., LTD. (Chine)
Inventeur(s)
Zhai, Shuying
Yang, Yong
Zhou, Dongliang
Shu, Xin
Ran, Qianping
Yan, Han
Zhao, Hongxia
Abrégé
22 atmosphere, raising the temperature to 60 to 80°C, and reacting for 2 to 5 hours to obtain the polycarboxylate water reducer having a regular sequence structure. The polycarboxylate water reducer obtained by means of the present invention is suitable for areas where sand construction aggregate has a high mud content, and has the advantages of low content, high water reduction, and high slump resistance. The preparation technique of the present invention is simple, the production process is green and environmentally friendly, and the production has a low cost.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
26.
Preparation method for polymer and applications thereof
The present invention provides a method for preparing a polymer and a use of the polymer. The resulting polymer is used as a dispersant for an aqueous dispersion of a hydraulic binder and/or a latent hydraulic binder, such that water-reducing rate is improved, and suitable control of air content can be achieved, thereby improving the strength of concrete. The method for preparing a polymer includes polycondensation of a polyether macromonomer A of a specific structure, a monomer B and an aldehyde C to obtain the polymer. The monomer B is phenylsulfonic acid, p-/o-aminophenylsulfonic acid, p-/o-hydroxylbenzoic acid, p-/o-aminobenzoic acid, p-/o-hydroxylphenylsulfonic acid, or a phosphoric acid group or phosphorous acid group-containing monomer of a specific structure. A molar ratio of the polyether macromonomer A and the monomer B is 1:(0.5 to 12).
C08G 65/335 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant du phosphore
C08G 65/331 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant de l'oxygène
C08G 65/332 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant de l'oxygène contenant des groupes carboxyle, ou leurs halogénures ou esters
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C08G 65/334 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant du soufre
BOTE NEW MATERIALS TAIZHOU JIANGYAN CO., LTD (Chine)
Inventeur(s)
Ran, Qianping
Wang, Tao
Liu, Jiaping
Ma, Jianfeng
Qi, Shuai
Fan, Shimin
Yang, Yong
Abrégé
The present invention discloses a method for preparing a concrete superplasticizer having a phosphorous acid group and a use of the concrete superplasticizer. The concrete superplasticizer having a phosphorous acid group according to the present invention is prepared by free radical copolymerization of a phosphorous-containing monomer A and a polyether macromonomer B. The concrete superplasticizer having a phosphorous acid group obtained in the present invention can effectively improve flowability of concrete and can retain good workability of concrete. The method is simple, economical and effective, and in particular, can be used for commercial mass production.
C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
Embodiments of the present invention relate to the technical field of concrete admixtures, and provide a phosphonato block polymer, a preparation method therefor and an application thereof. The method comprises: the phosphonato block polymer is prepared by copolycondensating an ether-type segment A, a phosphonato segment B, and a third part of aldehyde C. The molar ratio of the ether-type segment A to the phosphonato segment B is 1:(0.8-5.0). The ether-type segment A is obtained by polycondensating a polyether monomer a having a particular structure and a first part of aldehyde C. The molecular weight of the polyether monomer a is 1,200-4,800, and is preferably 1,500-2,500. The phosphonato segment B is obtained by polycondensating a monomer b containing phosphonato and having a particular structure, a monomer c, and a second part of aldehyde C in an aprotic weak polar solvent E. By preparing a block polymer using arylalkane as a main chain and using a phosphonic acid or phosphinic acid functional group as an adsorption group, the present invention improves the resistance of the block polymer to sulfate and clay interference, and can achieve the purpose of the initial high dispersion of concrete with a low water-cement ratio and decreasing of the system viscosity.
BOTE NEW MATERIALS TAIZHOU JIANGYAN CO., LTD. (Chine)
Inventeur(s)
Ran, Qianping
Wang, Tao
Liu, Jiaping
Ma, Jianfeng
Qi, Shuai
Fan, Shimin
Yang, Yong
Abrégé
A method for preparing a concrete superplasticizer having a phosphorous acid group and use thereof. The concrete superplasticizer is prepared by free radical copolymerization of a phosphorus-containing monomer A and a polyether macromonomer B. The concrete superplasticizer can effectively improve the fluidity of the concrete and can maintain excellent working performances of the concrete.
C08F 283/06 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polyéthers, des polyoxyméthylènes ou des polyacétals
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
Inventeur(s)
Ran, Qianping
Liu, Jiaping
Wang, Tao
Ma, Jianfeng
Qi, Shuai
Fan, Shimin
Yang, Yong
Abrégé
Provided in the present invention are a preparation method for a polymer and applications thereof. The polymer prepared is used as a dispersant for the aqueous dispersion of a hydraulic binding agent and/or a latent hydraulic binding agent, increases bleeding rate, and implements appropriate control of gas content, thus enhancing the strength of concrete. The preparation method for the polymer is such that specifically-structured polyether macromonomer A, monomer B, and aldehyde C undergo a condensation reaction to produce the polymer, where monomer B is benzenesulfonic acid, P/O-aminobenzenesulfonic acid, P/O-hydrobenzoic acid, P/O-aminobenzoic acid, P/O-hydroxybenzenesulfonic acid, or a specifically structured monomer containing a phosphoric acid or phosphorous acid group, and the molar ratio of polyether macromonomer A to monomer B is 1:0.5-12.
C08G 65/334 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant du soufre
C08G 65/335 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant du phosphore
C08G 65/332 - Polymères modifiés par post-traitement chimique avec des composés organiques contenant de l'oxygène contenant des groupes carboxyle, ou leurs halogénures ou esters
C04B 24/32 - Polyéthers, p. ex. polyéther de glycol et d'alkylphénol
PANZHIHUA BOTE BUILDING MATERIALS CO., LTD. (Chine)
Inventeur(s)
Liu, Jiaping
Ran, Qianping
Wang, Tao
Qi, Shuai
Ma, Jianfeng
Fan, Shimin
Yang, Yong
Abrégé
Disclosed is a phosphorylated polycondensate as a high efficiency water reducing agent. The phosphorylated polycondensate uses phosphorylated melamine derivatives as the main adsorbing groups instead of conventional carboxyl groups and sulfonate groups, and aromatic alkoxy polyether as polymer side chains, providing a strong steric hindrance effect and improving the dispersity and the dispersion retaining performance of the polymer. The molecular structure of the polymer is formed from condensation of a phosphorylated melamine, an aldehyde and an aromatic alkoxy compound and has a comb shape. Also provided is a method for preparing a phosphorylated polycondensate as a high efficiency water reducing agent, wherein the polymerization process involves the steps of preparation, condensation and neutralization of a phosphorylated melamine monomer and can be accomplished using a "one-pot method". The resulting phosphorylated polycondensate, as a high efficiency water reducing agent, is well adapted to low-quality concrete raw materials.
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD. (Chine)
Inventeur(s)
Shu, Xin
Liu, Jiaping
Yang, Yong
Ran, Qianping
Li, Shentong
Zhao, Hongxia
Cao, Panpan
Zhai, Shuying
Zhang, Zhiyong
Abrégé
Disclosed in the present invention are organic-inorganic hybrid particles, and a preparation method therefor and applications thereof in the modification of cement-based materials. The organic-inorganic hybrid particles of the present invention consist of organic components and inorganic components, and the inorganic components and the organic components are mutually connected in a crossed manner by means of covalent bonds instead of core-housing structures. The inorganic components and the organic components are connected by means of covalent bonds. In the organic-inorganic hybrid particles of the present invention, the organic components are used for improvement of mechanical properties of the cement-based materials; by complete connection of the organic components with CSH particles by means of the inorganic components and the covalent bonds, toughness efficacy of the organic components is improved; in addition, as more organic-inorganic hybrid particles are doped into the cement-based materials, the mechanical properties of the cement-based materials are more evidently improved.
Provided are a steel bar rust inhibitor and a use thereof. The steel bar rust inhibitor comprises a compound having a hydroxy amide structure, and a composition of the compound and an organic carboxylic acid or an organic carboxylic acid salt. The organic carboxylic acid salt is a salt formed by a reaction of the organic carboxylic acid with at least one or any two of an inorganic base, an organic amine and an organic alcohol amine. The proportions of the hydroxy amide compound and the organic carboxylic acid or the organic carboxylic acid salt in the composition are as follows: the hydroxy amide accounts for 2%-35% of the total mass fraction, the organic carboxylic acid or salt thereof accounts for 0%-45% of the total mass fraction, and the balance is water. The steel bar rust inhibitor can be used as a doping type rust inhibitor and can also be used as a surface coating type rust inhibitor. The new steel bar rust inhibitor is suitable for the corrosion protection and repair of steel bars in concrete structures, in environments of high chloride salt and chloride salt coupling with carbonation.
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD (Chine)
Inventeur(s)
Liu, Jiaping
Zhou, Dongliang
Ran, Qianping
Yang, Yong
Liu, Jinzhi
Abrégé
A slump retaining polycarboxylic acid superplasticizer. A weight average molecular weight of the superplasticizer is 20,000-80,000. The slump retaining polycarboxylic acid superplasticizer is prepared by performing polymerization reaction on a monomer A, a monomer B, a monomer C and a monomer D in an aqueous solution in the presence of a redox initiator, wherein a molar ratio of (the monomer A+the monomer B):the monomer C:the monomer D is 1:(3-8):(4-12), and a molar ratio of the monomer A to the monomer B is 1:(1-4).
BOTE BUILDING MATERIALS (TIANJIN) CO., LTD (Chine)
Inventeur(s)
Liu, Jiaping
Zhou, Dongliang
Ran, Qianping
Yang, Yong
Liu, Jinzhi
Abrégé
A slump retaining polycarboxylic acid superplasticizer. A weight average molecular weight of the superplasticizer is 20,000-80,000. The slump retaining polycarboxylic acid superplasticizer is prepared by performing polymerization reaction on a monomer A, a monomer B, a monomer C and a monomer D in an aqueous solution in the presence of a redox initiator, wherein a molar ratio of (the monomer A + the monomer B): the monomer C: the monomer D is 1:(3-8):(4-12), and a molar ratio of the monomer A to the monomer B is 1:(1-4).
C04B 24/26 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C08F 20/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
36.
Method for testing setting time of cement-based material
Disclosed is a method for testing the setting time of a cement-based material: testing the capillary negative pressure of a non-bleeding cement-based material, with the time at which the capillary negative pressure reaches a threshold value A as the initial setting time, and/or the time at which the capillary negative pressure reaches a threshold value B as the final setting time, wherein threshold value A is 8-10 kPa, and threshold value B is 54-56 kPa. Alternatively, threshold value A and threshold value B are determined by the following method: formulating a cement-based material for the determination of threshold values with the same raw materials at the same formulation ratio; after vibration-compaction, placing a portion into a measuring mold; after vibration-compaction, testing the capillary negative pressure of the non-bleeding cement-based material placed in the measuring mold; under the same conditions, synchronously testing and determining the initial setting time and final setting time of the cement-based material for the determination of threshold values by a penetration resistance method; the capillary negative pressure corresponding to the initial setting time and final setting time of the cement-based material for the determination of threshold values are respectively threshold value A and threshold value B. The method can not only be used in standard tests for a laboratory cement setting time under standard temperature conditions, but can also be used to realize remote, automatic, and continuous in situ monitoring for the setting time of a cast-in-situ concrete structure.
G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement
G01N 13/02 - Recherche de la tension superficielle des liquides
37.
Preparation method of hyperbranched polycarboxylic acid containing copolymer cement dispersant
C08F 228/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par une liaison au soufre ou par un hétérocycle contenant du soufre par une liaison au soufre
brevets
