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207 results about "Cardanol" patented technology

Cardanol is a phenolic lipid obtained from anacardic acid, the main component of cashew nutshell liquid (CNSL), a byproduct of cashew nut processing. Cardanol finds use in the chemical industry in resins, coatings, frictional materials, and surfactants used as pigment dispersants for water-based inks. It is used to make phenalkamines, which are used as curing agents for the durable epoxy coatings used on concrete floors. The name of the substance is derived by contraction from the genus Anacardium, which includes the cashew tree, Anacardium occidentale. The name of the genus itself is based on the Greek word for heart.

Low-temperature heat-sealing water-based coated paper as well as preparation method and application thereof

PendingCN121556293AFlexible coversDefoamers additionPhytic acidCross linker
The invention relates to the field of packaging materials, and discloses low-temperature heat-sealing water-based coated paper and a preparation method and application thereof.The water-based coated paper comprises a base paper layer and a water-based coating, and the water-based coating comprises water-based ethylene-acrylic acid copolymer emulsion, modified nano-silica, a coalescing agent and water; a cardanol derivative is introduced into the water-based ethylene-acrylic acid copolymer emulsion as a functional component; the cardanol derivative is prepared by reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and then grafting with acryloyl chloride. The preparation method comprises the following steps: reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; the modified nano silicon dioxide is prepared by mixing aminated nano silicon dioxide and chitosan and adding a cross-linking agent prepared by grafting phytic acid and ethylene glycol diglycidyl ether. The water-based coating paper prepared by the invention overcomes the defects that the existing BOPP film is not environment-friendly, and the conventional coating paper is high in heat sealing temperature and easy to stick; meanwhile, good mechanical properties, water resistance and flame retardance are achieved.
Owner:JIANGXI RUIZE PAPER-BASED ENVIRONMENTAL PROTECTION NEW MATERIAL CO LTD

Phosphorus-containing side group novolac epoxy resin based on cardanol and flame-retardant cured product thereof

PendingCN121574345APolymer sciencePtru catalyst
A preparation method of the cardanol-based phosphorus-containing side group novolac epoxy resin comprises the following steps: (1) in the presence of a catalyst A, carrying out a stirring reaction on cardanol and an aldehyde compound at 80-110 DEG C for 3-10 h to prepare an intermediate A; (2) stirring the intermediate A and a phosphorus-containing compound at 50-150 DEG C to react for 10-24 hours to prepare an intermediate B; and (3) in the presence of a catalyst B, stirring and reacting the intermediate B and epichlorohydrin at 70-110 DEG C for 2-6 hours, and in the presence of a catalyst C, stirring and reacting at 30-65 DEG C for 1-4 hours to prepare the cardanol-based phosphorus-containing side group novolac epoxy resin. Through a rigid structure on a main chain of the novolac epoxy resin, a phosphorus-containing structure on a side chain of the novolac epoxy resin and an epoxy group, the toughness and flame retardance of an epoxy cured product can be improved on the premise that the thermal stability is not reduced, and the novolac epoxy resin has an extremely good application research prospect.
Owner:JIANGSU SANMU GRP CORP +1

Strong-acid-and-alkali-resistant plastic material for fume hood surface decoration and preparation method of strong-acid-and-alkali-resistant plastic material

PendingCN121975264Areduce wettingreduce adhesionPolymer sciencePlastic materials
The invention discloses a strong acid and alkali resistant plastic material for fume hood surface decoration and a preparation method of the strong acid and alkali resistant plastic material, belongs to the technical field of plastic material processing, and aims at solving the technical problem that in the prior art, the acid and alkali resistance and the bending modulus of a plastic material for fume hood surface decoration need to be further improved. The preparation method specifically comprises the following steps: stirring amino-modified fluorosilicone resin, paraformaldehyde and 1, 4-dioxane in a reaction kettle, dropwise adding an anacardol solution, heating the reaction kettle to 85-95 DEG C, carrying out heat preservation reaction for 6-8 hours, and carrying out post-treatment to obtain the anacardol-based benzoxazine resin. Perfluoro-modified polysiloxane benzoxazine is prepared, naphthalene-containing epoxy resin and imidazole-modified silicon carbide microspheres are compounded, in-situ catalysis synergistic curing is carried out by using filler interface imidazole, a compact organic-inorganic hybrid interpenetrating network is constructed, and the strong acid and alkali corrosion resistance and bending modulus of the material are remarkably improved.
Owner:ANHUI YIGUANG LAB EQUIP MFG CO LTD

Elastic waterproof biomimetic membrane as well as preparation method and application thereof

The invention relates to the technical field of polyurethane, and discloses an elastic waterproof biomimetic membrane as well as a preparation method and application thereof. Polylactic acid dihydric alcohol, an isocyanate monomer, a chain extender and cardanol siloxane-based cellulose are subjected to a polymerization chain extension reaction, and the elastic waterproof biomimetic membrane is obtained. The nano cellulose containing a benzene ring structure, a cardanol flexible long carbon chain and a siloxane structure are introduced into polyurethane, so that the tensile strength and the elongation at break of a polyurethane film are improved. Meanwhile, the hydrophilicity of cellulose is reduced, the water contact angle of the polyurethane film is increased, the waterproof performance is enhanced, and the good practical application is achieved in the waterproof finishing aspect of fabric such as bionic waterproof and moisture permeable films and outdoor jackets.
Owner:GUANGZHOU CAMEL HOME TEXTILE TECH CO LTD +1

Bio-based flame-retardant polyol as well as preparation method and application thereof

The invention discloses bio-based flame-retardant polyol as well as a preparation method and application thereof. Comprising the following steps: generating bio-based polyol containing 3-5 hydroxyl functionalities from raw cardanol and hydroxy ketone under the catalysis of strong acid ion exchange resin, and reacting with bromine to generate the bromine-containing bio-based flame-retardant polyol. The bio-based polyol prepared by the method is good in flame retardant property, a carbamate bond generated by a phenolic hydroxyl group and isocyanate can be reversibly decomposed at a relatively low temperature, and the bio-based polyol has good recycling performance and high bio-based content and is a green and environment-friendly bio-based material.
Owner:WANHUA CHEM GRP CO LTD

High-strength CPVC pipe and preparation method thereof

The invention relates to the field of pipes, and discloses a high-strength CPVC pipe and a preparation method thereof.The pipe comprises CPVC resin, modified multi-walled carbon nanotubes, modified nano silicon dioxide and auxiliaries; the modified multi-walled carbon nanotubes are prepared by grafting phosphorus-containing cardanol derivative based benzoxazine and oxidized multi-walled carbon nanotubes; phosphorus-containing cardanol derivative benzoxazine reacts with 1, 5-naphthylenediamine to prepare an aldehyde cardanol intermediate, the aldehyde cardanol intermediate is prepared by reacting paraformaldehyde with hydrogenated cardanol, the obtained cardanol derivative and DOPO are subjected to addition, and then the obtained phosphorus-containing cardanol derivative reacts with paraformaldehyde and 3-aminopropyltriethoxysilane to prepare the flame retardant. The modified nano silicon dioxide is prepared by introducing polyethylene glycol into the surface of isocyanated nano silicon dioxide and grafting with 3, 5-bis (tert-butyl)-4-hydroxybenzene propionyl chloride, and the pipe prepared by the invention is high in tensile strength and impact strength and has good long-acting oxidation resistance, high temperature resistance and flame retardance.
Owner:HANGZHOU XINLU IND CO LTD

A bio-based flame retardant intumescent powder coating and a method of making the same

PendingCN122356953AFirming agentGlycerol Ethers
This invention discloses a bio-based flame-retardant thermally expanding powder coating and its preparation method, relating to the field of coatings. It comprises the following components: bio-based epoxy resin, phenolic epoxy curing agent, ammonium polyphosphate, nano-titanium dioxide, zinc borate, expanded graphene, 8-12 parts of imidazole, benzoin, and a leveling agent. The bio-based epoxy resin is prepared by ring-opening copolymerization of cashew phenol glycidyl ether and linoleic acid prepolymer, followed by epoxy end-capping, with an epoxy equivalent of 900-1200 g / eq; the phenolic epoxy curing agent has an epoxy equivalent of 200-250 g / eq; and the expanded graphene has an initial expansion ratio of 200-300 times. The preparation method employs a two-step, staged mixing process. This invention, while maintaining zero VOC in powder coatings and the same film thickness, achieves for the first time the outstanding performance of 6H hardness, UL94V-0 flame retardancy, and 120 times expansion ratio through the systematic synergy of high epoxy equivalent bio-based resin, four-component complete flame retardant system, specific EG:APP ratio, and two-step process.
Owner:CHENGDU HSINDA POLYMER MATERIALS CO LTD

A protective coating with reverse enhanced adhesion and its preparation method and application

ActiveCN122234688BFirming agentPhenol
The present application belongs to the technical field of protective coating, and relates to a protective coating with reverse enhanced adhesion, a preparation method and application thereof. The protective coating is composed of component A and component B. The preparation raw materials of component A include water-based epoxy resin emulsion, cashew phenol glycidyl ether, wetting penetrant and defoaming agent. The preparation raw materials of component B include phenolic amine curing agent, alicyclic amine curing agent, dopamine, 2,4,6-tris(dimethylaminomethyl)phenol and pigment filler. The dopamine and the phenolic amine curing agent and the alicyclic amine curing agent are grafted under the action of 2,4,6-tris(dimethylaminomethyl)phenol to form a modified curing agent. The coating has low requirements for surface treatment, high adhesion in dry and humid environments and presents the characteristics of "reverse enhanced adhesion".
Owner:ZHEJIANG YUXI CORROSION CONTROL CORP +1

Weather-proof, heat-insulating and waterproof coating for external walls and preparation method thereof

The application discloses a waterproof coating for outer wall weather resistance, heat insulation and heat preservation and a preparation method thereof. The waterproof coating comprises the following components in parts by weight: modified acrylate polymer emulsion 27-35 parts, composite filler 35-50 parts, curing system 5-10 parts, film forming aid 4-8 parts, defoaming agent 0.1-0.5 parts, leveling agent 0.3-0.8 parts, mildew-proof agent 0.2-0.6 parts, thickening agent 0.5-1.0 parts and pH regulator 1-5 parts. The modified acrylate polymer emulsion is prepared by pretreating and silanization modifying cardanol, monomer pre-emulsification and free radical polymerization. The waterproof coating provided by the application introduces Si-O-C network and hindered amine free radical capture system to improve weather resistance; fluorine compound-nano silicon dioxide constructs roughness-low surface energy synergistic waterproof interface; acid washing fly ash floating beads, silica aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths to realize cross-scale porous filler heat preservation; and the waterproof coating can serve in complex environments such as large temperature difference fluctuation and acid rain.
Owner:GUANGZHOU JIALAI LE NEW MATERIALS CO LTD +1

High-solid-content solvent-free thick paste type epoxy resin coating as well as preparation method and application thereof

The invention relates to the technical field of coatings, and provides a high-solid-content solvent-free high-build epoxy resin coating as well as a preparation method and application thereof.The coating comprises a first component and a second component, the first component comprises modified epoxy resin, a reactive diluent, a filler and an auxiliary agent; the second component comprises a modified curing agent, a composite accelerant and a retarder; the composite accelerant is formed by compounding modified nano zinc oxide and a composite catalyst; the modified nano-zinc oxide is prepared by reacting KH560 with nano-zinc oxide and then reacting with 3-sulfonic acid propyl methacrylic acid potassium salt; the composite catalyst is formed by compounding imidazolium salt ionic liquid and triethanolamine. A flexible chain segment is introduced into the modified epoxy resin to reduce viscosity, the modified curing agent adopts cardanol and mixed amine to be compounded to regulate and control reaction, and the composite accelerant and the retarder cooperate to catalyze and control speed; the problems of incomplete curing and low performance caused by the fact that the diffusion of a curing agent in a thick coating of the high-solid-content solvent-free thick paste type epoxy resin coating is blocked are solved.
Owner:AMBASSADOR PAINT (ANHUI) CO LTD +2

A cashew phenol-based bisphenol, its preparation method and application

This invention discloses a cashew nut shell bisphenol and its preparation method and application. The preparation method of the bisphenol is as follows: First, cashew nut shell phenol, formaldehyde, and an alkaline catalyst are mixed and stirred evenly, and reacted at a certain temperature to obtain hydroxymethylated product A; product A is washed with water several times until the pH is neutral, and then centrifuged to remove water to obtain product B; product B is mixed with phenol and an acidic catalyst and stirred evenly, and reacted at a certain temperature to obtain product C after the phenol-alcohol reaction; product C is washed with water until neutral, and then distilled under reduced pressure to obtain the cashew nut shell bisphenol product. This invention utilizes the structural characteristics of cashew nut shell phenol, which has both a benzene ring and an alkane chain, to obtain a bisphenol structure that combines the rigidity of the benzene ring with the toughness of the long alkane chain on cashew nut shell phenol, while protecting the highly reactive phenolic hydroxyl group. Moreover, this bisphenol is green and low in toxicity, meeting the requirements of environmental protection and sustainable development. The epoxy coating prepared using this bisphenol has high crosslinking density, good corrosion resistance, and excellent mechanical properties.
Owner:NASURFAR BIOMATERIAL TECH (CHANGSHU) CO LTD

High-temperature-resistant sulfonated phenolic resin for drilling fluid and preparation method thereof

The application relates to the technical field of drilling fluids, and discloses a high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids and a preparation method thereof. The preparation method of the high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids is as follows: 50-65 mL of N,N-dimethylformamide solvent, 2-4 parts by weight of benzene sulfonic acid modified phenolic aldehyde resin and 0.01-0.02 parts by weight of pyridine are added into a reactor, after stirring and dissolving, 5-10 parts by weight of modified cardanol is continuously added, reaction is carried out at 60-68 DEG C, after the reaction is finished, vacuum distillation is carried out, and filtration is carried out, so that the high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids is obtained. The high-temperature-resistant sulfonated phenolic aldehyde resin for drilling fluids has good temperature resistance and salt resistance.
Owner:HENAN DESHENG DRILLING FLUID TECH FACTORY

Crude oil flow modifier and preparation method thereof

The invention discloses a crude oil flow modifier and a preparation method thereof, and belongs to the technical field of oilfield development. An active component in the crude oil flow modifier is a quadripolymer generated through reaction of octadecyl acrylate, maleic anhydride, cardanol and acrylamide, alkyl long chains in octadecyl acrylate and cardanol can prevent wax crystals from forming a three-dimensional network structure through adsorption and eutectic effects, and the purpose of dispersing the wax crystals is achieved; oxygen atoms in octadecyl acrylate and maleic anhydride, benzene rings and hydroxyl in cardanol and acylamino in acrylamide can hinder asphaltene aggregation through the effects of pi-pi conjugation, hydrogen bonds, steric hindrance and the like, so that the effect of dispersing asphaltene is achieved, and finally viscosity reduction and pour point depression of the high-wax and high-asphaltene crude oil are achieved.
Owner:CHINA PETROLEUM PIPELINE ENG CO LTD +3

Insulating material for anti-bending earphone wire and preparation process of insulating material

The invention relates to the technical field of polyethylene, and discloses an insulation material for an anti-bending earphone wire and a preparation process thereof.The insulation material for the anti-bending earphone wire is obtained by mixing high-density polyethylene, a polyurethane elastomer, a cardanol polymer and the like and performing extrusion granulation. The cardanol polymer contains an amido bond, an ester group and a benzene ring, the cardanol polymer and a urethane group of a polyurethane elastomer form a stronger hydrogen-bond interaction, the benzene ring is beneficial to improving the compatibility of the cardanol polymer and an aromatic polyurethane elastomer, and meanwhile, the cardanol polymer has a long carbon chain with good compatibility with polyethylene, so that the cardanol polymer can compatibilize the polyethylene and the polyurethane elastomer, and the compatibility between the cardanol polymer and the aromatic polyurethane elastomer is improved. The interface performance of the two materials is improved, so that the material has better mechanical property, the bending strength and tensile property of the material are further improved, and the material is excellent in mechanical property, not easy to damage when stretched and bent, and suitable for insulating layers and outer sheaths for earphone wires.
Owner:HENGYANG SHUOFENG ELECTRONICS CO LTD

Preparation method of water-based digital printing priming white adhesive cement

The invention relates to the field of textile printing materials, and discloses a preparation method of water-based digital printing bottoming white adhesive cement, which comprises the following steps: mixing water-based acrylate emulsion with an auxiliary agent and a macromolecular quaternary ammonium salt color fixing agent to obtain a premix; mixing the premix with filling powder to obtain dispersion liquid; and adding a curing agent and a thickening agent into the dispersion liquid and mixing. The macromolecular quaternary ammonium salt color fixing agent is prepared by reacting an organic silicon modified allylamino phosphorus-containing bromine substituent and bis (dimethylamino) phosphoric acid hydrogenated cardanol ester; the organic silicon modified allylamine phosphorus-containing bromine substituent is prepared by preparing the allylamine phosphorus-containing bromine substituent from allylamine, phenyl dichlorophosphate and 2-bromoethylamine hydrobromide as raw materials and then reacting the allylamine phosphorus-containing bromine substituent with heptamethyltrisiloxane. The white rubber cement prepared by the preparation method is bright in color and clear in pattern, can be recycled and reused, and has the advantages that the white rubber cement is easy to prepare, the cost is low, and the application prospect is wide. The color fixing fastness, the flame-retardant and fire-proof performance, the net blocking prevention performance and the hand feeling comfort degree are good.
Owner:JIANGMEN CAIGE ENVIRONMENTAL PROTECTION TECH IND

Bio-based silane coupling agent as well as preparation method and application thereof

The invention relates to a bio-based silane coupling agent as well as a preparation method and application thereof, and belongs to the technical field of organic material chemistry. The bio-based silane coupling agent is prepared from the following raw material components: a cardanol derivative, a mercapto silane coupling agent and a photoinitiator, and the molar ratio of carbon-carbon double bonds in the cardanol derivative to mercapto in the mercapto silane coupling agent to the photoinitiator is 1: (0.4-1): (0.01-0.05). The novel cardanol-based silane coupling agent is successfully prepared through a photo-initiation click chemistry technology. The coupling agent can significantly improve the initial bonding strength and high-temperature and high-humidity aging resistance of the adhesive, and has the advantages of environmental protection and wide application.
Owner:YANTAI DARBOND TECH

High-temperature-resistant protective coating for alloy surface and preparation method of high-temperature-resistant protective coating

The invention relates to the field of coatings, and discloses a high-temperature-resistant protective coating for an alloy surface and a preparation method of the high-temperature-resistant protective coating. The protective coating is prepared from waterborne epoxy resin, high-temperature-resistant filler, cardanol-based modified benzoxazine resin, a hyperbranched modifier, a curing agent and auxiliaries; according to the cardanol-based modified benzoxazine resin, paraformaldehyde is utilized to introduce an aldehyde group into a hydrogenated cardanol matrix to prepare a cardanol-based aldehyde-containing intermediate, then the cardanol-based aldehyde-containing intermediate reacts with 1, 5-naphthalene diamine, and then the cardanol-based aldehyde-containing intermediate reacts with gamma-aminopropyltriethoxysilane and paraformaldehyde through Mannich reaction to prepare the cardanol-based modified benzoxazine resin. The hyperbranched modifier is prepared by carrying out addition on 2, 4-dihydroxybenzophenone and isocyanatopropyltriethoxysilane, initiating hydrolytic condensation by utilizing a sol-gel method and then introducing triglycidyl isocyanurate to carry out a ring-opening reaction, and the protective coating prepared by the preparation method is strong in adhesive force, high in mechanical strength, good in wear resistance, good in wear resistance, good in wear resistance and good in wear resistance. Meanwhile, good corrosion resistance, high temperature resistance, ultraviolet aging resistance and flame retardance are achieved.
Owner:CHENGDU IND VOCATIONAL TECHN COLLEGE

Biomass hot melt adhesive and preparation method thereof

This invention discloses a biomass hot melt adhesive and its preparation method, belonging to the field of environmentally friendly adhesive technology. Addressing the industry pain points of existing biomass hot melt adhesives, such as difficulties in melt processing and the inability to simultaneously achieve both bonding performance and environmental friendliness, this invention uses a modified lignin graft copolymer prepared by a ring-opening grafting reaction of lignin sulfonate with L-lactide and ε-caprolactone as the matrix, compounded with nano-cellulose whiskers, cashew phenol-based plasticizers, composite crosslinking agents, and bio-based antioxidants to construct a fully biomass formulation system. The product is obtained through a solvent-free melt reaction blending process. The product of this invention is completely biodegradable, possesses excellent hot melt processability, bonding strength, water resistance, and storage stability, and the preparation process is green and environmentally friendly, suitable for large-scale industrial production, and can replace traditional petroleum-based hot melt adhesives.
Owner:GUANGDONG TAIQIANG TECH IND CO LTD

High-wear-resistant and scratch-resistant PET (Polyethylene Terephthalate) film for automobile and preparation method of PET film

The invention relates to the technical field of polymer composite materials, in particular to a highly wear-resistant and scratch-resistant PET film for an automobile and a preparation method of the highly wear-resistant and scratch-resistant PET film. The highly wear-resistant and scratch-resistant PET film is prepared from the following raw materials in parts by weight: 100 parts of PET matrix resin, 5-15 parts of an additive A, 2-8 parts of an additive B, 0.3-1 part of an antioxidant 1010, 0.5-1 part of an ultraviolet light absorber and 0.5-2 parts of calcium stearate. The additive A forms a cross-linked network with silk fibroin and chitosan through a treating fluid, a silane coupling agent is introduced to enhance interface bonding, the filling density and surface hardness of the PET film are effectively enhanced, the additive B takes sodium alginate as a framework, and a silicon dioxide composite structure formed by hydrolyzing a pretreated cardanol derivative and tetraethoxysilane is combined, so that the filling density and surface hardness of the PET film are improved. Through the synergistic effect of microcosmic toughening and inorganic particles, the wear resistance and scratch resistance of the PET film are improved, and the prepared PET film has the comprehensive properties of wear resistance and scratch resistance.
Owner:深圳市精恒光电科技有限公司

Carbon-based ceramic tile back adhesive and preparation method thereof

The invention relates to the technical field of building materials, and particularly discloses a carbon-based ceramic tile back adhesive and a preparation method thereof. The carbon-based ceramic tile gum is prepared from the following raw materials in parts by weight: 90 to 110 parts of organic silicon modified epoxy resin, 10 to 20 parts of reactive diluent, 25 to 45 parts of composite functional filler, 1 to 3 parts of coupling agent, 0.5 to 1.5 parts of defoaming agent, 0.3 to 0.8 part of thixotropic agent, 40 to 60 parts of cardanol modified amine curing agent and 2 to 5 parts of accelerant, and the composite functional filler is a microcapsule with a core-shell structure. The organosilicon modified epoxy resin and the cardanol modified amine curing agent form a cross-linking system, the composite functional filler with the core-shell structure is adopted, phase change is generated to absorb or release latent heat when the temperature changes, the temperature gradient in the adhesive layer is stabilized, and thermal stress accumulation is reduced, so that through the synergistic effect of phase change energy storage and interface enhancement, the thermal stress performance of the adhesive layer is improved. Thermal stress damage is effectively buffered, and interface cracking and hollowing are avoided.
Owner:GUIZHOU NORTHED BUILDING MATERIALS CO LTD

A new type of flexible printed circuit board and module for smart phones based on a solderable silver paste

The application discloses a novel smart phone flexible printed circuit board and module prepared based on weldable silver paste, and belongs to the technical field of electronic materials and devices. The conductor pattern in the flexible printed circuit board comprises a main circuit pattern and an auxiliary function structure formed by weldable low-temperature silver paste. The solidification temperature of the weldable low-temperature silver paste is 90 DEG C to 110 DEG C. The weldable low-temperature silver paste comprises conductive fillers, a polymer resin system, ester solvents, a curing agent, a silane coupling agent, a polyamide wax thixotropic agent, a polysiloxane defoaming agent, modified carbon nanotubes, modified antimony tin oxide powder, modified ceramic fillers and nano yttrium oxide. The polymer resin system comprises cashew phenol-based epoxy resin, hydrogenated bisphenol A epoxy resin and polyacrylate-CTBN copolymer. The application provides a solution suitable for smart phone high-density interconnection, micro jumper, dynamic bending compensation and micro pad direct packaging, and solves the problems caused by high-temperature process damage to elements, welding pre-plating and high-density integration.
Owner:NANO TOP ELECTRONICS TECH

Silane-modified epoxy resin-based underwater repair material and its preparation and construction method

PendingCN122278120ACellulosePtru catalyst
A silane-modified epoxy resin-based underwater remediation material comprises: silane-modified epoxy resin, PEG-PAA graft copolymer, mussel biomimetic adhesive, hydrophobic nano-kaolin, hyperbranched polyester, carbon nanotube / montmorillonite hybrid material, temperature-controlled microcapsule material, cashew phenol-modified amine curing agent, nano-calcium carbonate whiskers, calcium alginate / PAM dual-network material, cellulose nanofibers, organic bismuth catalyst, and heavy calcium carbonate; this application also includes its preparation and application methods. The silane-modified epoxy resin-based underwater remediation material of this invention can form a strong and reliable bond in an underwater environment, exhibits a high thixotropic index, a low chloride ion diffusion coefficient, and strong resistance to water erosion, meeting the requirements for underwater use and construction; it also meets environmental protection requirements, reducing harm to the environment and construction personnel, and achieving green and environmentally friendly construction.
Owner:CCFEB CIVIL ENG +1

Two-component polyurethane pouring sealant, preparation method and application thereof

The application provides a two-component polyurethane pouring sealant and a preparation method and application thereof. The two-component pouring sealant comprises an A component and a B component. The A component comprises propylene oxide modified lignin polyol and erythritol modified polyether polyol. The B component comprises cashew phenol based polyurethane prepolymer. The propylene oxide modified lignin polyol, the erythritol modified polyether polyol and the cashew phenol based polyurethane prepolymer have a synergistic effect, which can significantly improve the shear strength of the pouring sealant at high temperature, and the pouring sealant has good low-temperature bonding performance, aging resistance and impact resistance. Specifically, the shear strength at 60 DEG C is greater than 13 MPa, the shear strength remains above 12.5 MPa after aging in a double 85 environment, the attenuation rate is less than 7% compared with the shear strength at room temperature, the shear strength can remain above 13 MPa after high-low temperature impact test, the attenuation rate is less than 3%, and the pouring sealant meets the pouring requirements of power batteries in the field of new energy batteries.
Owner:GUANGDONG PUSTAR SEALED RAYON CO LTD

Solid conductive polyurethane-based coating composition and preparation method thereof

The invention relates to the technical field of coatings, in particular to a solid conductive polyurethane-based coating composition and a preparation method thereof. Comprising the following steps: adding graphite powder into concentrated H2SO4, cooling, adding KMnO4, stirring, heating for reaction, adding deionized water, cooling, adding water and a H2O2 solution, stirring, adding deionized water, stirring, standing, separating supernate, washing, precipitating, filtering and drying to obtain graphene oxide; thermally reducing the graphene oxide to obtain thermally reduced graphene oxide; dispersing the thermally reduced graphene oxide in a polyvinyl alcohol solution to obtain modified graphene; adding the modified graphene and the modified cardanol into waterborne polyurethane, stirring, performing ultrasonic treatment, baking and cooling to obtain the solid conductive polyurethane-based coating composition. The solid conductive coating solves the problems of dispersion difficulty, coating embrittlement, low toughness, impact resistance and the like of the solid conductive coating.
Owner:ZHENGZHOU UNIV

Charcoal products made with phenolic resin binder and methods for making thereof

The present disclosure describes compositions (bio-carbon materials) and methods of making compositions that comprise a binder (such as a phenolic binder which may comprise cardanol) and charcoal, preferably in a powder form. The composition may also include an accelerator / catalyst. The binder, charcoal powder, and accelerator may be mixed together, formed (pressurized, rolled, or extruded) and then cured. The resulting composition may be used as a metallurgical reducing agent, processed into anodes for use in the metallurgical industry, used in the construction industry for example as an ingredient in concrete, and as a fuel for cooking.
Owner:PROCARBON BIO AB

A method for preparing a hydrophobic vocs adsorbent

The application discloses a preparation method of a hydrophobic VOCs adsorbent, comprising the following steps: S1, mixing a silicon source, an alkali source and water to form a solution A, adding a tungsten source and a cashew phenol polyoxyethylene ether sulfonate into the solution A to obtain a gel B, then adding ZSM-5 seeds into the gel B, stirring uniformly, performing crystallization, cooling, filtering, washing, drying and calcining after the crystallization is completed, and obtaining a tungsten-doped ZSM-5 molecular sieve; S2, adding a nitrogen-containing solution into the tungsten-doped ZSM-5 molecular sieve to perform exchange, and then performing calcination to obtain the adsorbent. The molecular sieve synthesized by using the method has low synthesis cost, short synthesis time, excellent hydrophobic performance, and excellent VOCs (benzene) adsorption performance under high humidity.
Owner:PETROCHINA CO LTD

High heat and water resistant brominated butyl rubber sheet and preparation method thereof

PendingCN122356674APolymer scienceVulcanization
The application discloses a kind of high heat-resistant water-resistant type brominated butyl rubber rubber plate and preparation method thereof.The rubber plate is composed of brominated butyl rubber, activator, antioxidant, tackifying resin, reinforcing filler, mineral filler, softener, resin curing agent and accelerator.Among them, the resin curing agent uses cashew phenol modified phenolic resin, the resin uses cashew phenol C15 Unsaturated side chain to provide flexibility and water resistance, uses benzene ring interval substitution structure to provide heat resistance, and low viscosity characteristics help high filler compound mixing dispersion.The application solves the problem of traditional petroleum-based resin curing rubber plate processing, rigidity, poor water resistance, and is suitable for the field of industrial rubber plate with high requirements for flexibility and environmental performance.
Owner:XIANNING HUANINGRUBBER ANTISEPSIS EQUIP CO LTD

Lightweight high-strength self-cleaning white ultra-high performance concrete and preparation method thereof

The invention belongs to the technical field of concrete, and discloses light high-strength self-cleaning white ultra-high performance concrete and a preparation method thereof. The light high-strength self-cleaning white ultra-high performance concrete is prepared from the following raw materials in parts by mass: 35 to 45 parts of white cement, 10 to 15 parts of acetylated modified nano cellulose, 45 to 50 parts of TiO2-loaded white porous ceramic, 0.3 to 0.5 part of cardanol glycidyl ether, 1.0 to 1.5 parts of a polycarboxylic acid water reducing agent, 0.03 to 0.06 part of a de-foaming agent and 12 to 20 parts of water. The light-weight high-strength self-cleaning white ultra-high performance concrete has the characteristics of excellent performance, low energy consumption, high whiteness, high strength, light weight, high stain resistance and the like, and is simple and convenient in process, low in cost and wide in application market prospect.
Owner:WUHAN METALLURGY ARCHITECTURE RES YUAN CO LTD +1

Thermal insulation pearl wool-corrugated board and preparation method thereof

The invention relates to the field of thermal insulation materials, and discloses a thermal insulation pearl wool-corrugated paperboard and a preparation method thereof.The thermal insulation pearl wool-corrugated paperboard is prepared through the steps that citric anhydride and mercaptoethanol serve as raw materials, cardanol phenolic resin is modified, aerogel and the modified cardanol phenolic resin are mixed, and aerogel-cardanol phenolic resin is prepared; and coating and curing are carried out on the surfaces of the pearl wool and the corrugated board, so that the thermal insulation pearl wool-corrugated board is obtained. Modified cardanol phenolic resin in the aerogel-cardanol phenolic resin contains a large number of carboxyl groups and hydroxyl groups, the modified cardanol phenolic resin interacts with hydroxyl groups on the surface of corrugated paper, and alkyl long side chains of the modified cardanol phenolic resin have good compatibility with polyethylene groups of pearl wool, so that the aerogel-cardanol phenolic resin has good bonding performance; according to the aerogel-cardanol phenolic resin, heat conduction is effectively blocked through an aerogel nano porous structure, the overall heat conductivity coefficient of the material is remarkably reduced, and therefore the pearl wool-corrugated board is endowed with the excellent heat preservation and heat insulation performance.
Owner:GUANGDONG ZHONGSUI PAPENS CO LTD

High-weather-resistance transparent super-hydrophobic coating and preparation method thereof

The invention discloses a high-weather-resistance transparent super-hydrophobic coating and a preparation method thereof. The high-weather-resistance transparent super-hydrophobic coating is prepared from modified cashew phenolic resin, hydrogen-containing silicone oil and organic glass microspheres according to the mass ratio of (12-28): (2-5): (12-20). The modified cashew nut phenolic resin is prepared from cashew nut phenolic resin, an N-containing silane coupling agent and isocyanate in a mass ratio of (72-80): (24-31): (4-14); according to the high-weather-resistance transparent super-hydrophobic coating obtained by the preparation method, super-hydrophobicity and high light transmittance (the light transmittance is greater than or equal to 90%) are realized at the same time, and the weather resistance and the mechanical stability are remarkably improved. When applied to a photovoltaic panel, the photovoltaic module can improve the power generation efficiency and reduce the operation and maintenance cost; the sensor is applied to windshields, cameras, laser radar mirror surfaces and other equipment of new energy automobiles, the sensing reliability of the sensor can be enhanced, the visual field in rainy days can be improved, energy consumption is reduced by improving the efficiency of an air conditioner heat exchanger, and the endurance mileage is increased.
Owner:ZHEJIANG KEWEI NEW ENERGY TECH CO LTD