1859 results about "Bisphenol A" patented technology

The invention discloses a toughened epoxy resin and a curing method thereof, and relates to the technical field of epoxy resins, the toughened epoxy resin comprises the following components: 100 parts of an epoxy resin matrix, specifically a mixture of bisphenol A epoxy resin and alicyclic epoxy resin, 5-35 parts of a composite amine curing agent, and 5-20 parts of a nano toughening agent, in particular to core-shell rubber particles grafted with epoxy groups on the surfaces, the core layer of each core-shell rubber particle is cross-linked polybutadiene, the shell layer of each core-shell rubber particle is polymethyl methacrylate, 0.5-3 parts of an accelerant comprising a bi-component synergistic accelerant, 1-5 parts of an interface enhancer, and a mixture of gamma-glycidyl ether oxypropyl trimethoxy silane and a titanate coupling agent, a bisphenol A type epoxy resin and a specific proportion of alicyclic epoxy resin are combined to construct an epoxy resin matrix according to a mass ratio of 2: 1, the epoxy resin matrix is matched with a composite amine curing agent prepared by carrying out a special three-step reaction on long-chain polyether diamine, aromatic diamine and anhydride, and key parameters such as molecular weight, functionality and molar ratio of the components are accurately regulated and controlled.

The invention relates to a photo-thermal super-hydrophobic multifunctional anti-icing coating as well as a preparation method and application thereof. The photo-thermal super-hydrophobic multifunctional anti-icing coating comprises primer and finish paint, the primer comprises the following raw materials in parts by weight: 20-25 parts of bisphenol A type epoxy resin and / or fluorine modified epoxy resin, 10-20 parts of fluorine modified polyacrylic resin and / or polyurethane resin, 5-10 parts of a curing agent and 40-55 parts of a solvent; the finish paint comprises the following components in parts by weight: 2-5 parts of polytetrafluoroethylene, 1-3 parts of soluble polytetrafluoroethylene, 1-5 parts of polydimethylsiloxane and 85-90 parts of fluorinated MOF dispersion liquid. Compared with the prior art, the photo-thermal super-hydrophobic multifunctional anti-icing coating provided by the invention has the characteristics of super-hydrophobicity, rapid ice melting, wear resistance, reduction of ice adhesion strength and reduction of icing amount, can effectively solve the problem of icing of an aluminum conductor of a power transmission line of a power system, and can be applied to power equipment such as the aluminum conductor of the power transmission line.

The invention relates to the technical field of biodegradable materials, and discloses a full-biodegradable bamboo fiber film material and a preparation method thereof, the full-biodegradable bamboo fiber film material comprises the following raw materials by weight: 30-50 parts of modified bamboo fiber, 20-40 parts of a biodegradable polymer, 3-8 parts of a plasticizer, and 1-5 parts of a cross-linking agent. Acrylic acid grafted hydroxyethyl methylacrylate is grafted to epoxy resin containing azobenzene side chains to form a grafting product of a latticed structure, and the grafting product and hydroxyl groups on bamboo fibers form ether bonds to modify the bamboo fibers. The latticed structure can effectively improve the mechanical property of the film, and azobenzene is grafted to the side chain of bisphenol A epoxy resin, so that the epoxy resin has better degradability.

The invention discloses an application of an electronic waste pollution human body exposure fingerprint spectrum in exposure risk prediction, and the human body exposure fingerprint spectrum is composed of more than three of exposure markers of 2, 4, 6-tribromophenol, 2, 4, 5-trichlorophenol, 4-bromophenol, 1-hydroxypyrene and bisphenol A. The invention further discloses an application of the electronic waste pollution human body exposure fingerprint spectrum in exposure risk prediction. According to the method, a systematic method of urine pollutant exposure omics is adopted for the first time, comprehensive screening and characterization of pollutant exposure markers related to specific components and by-products are achieved in electronic waste exposure worker groups, and the method is the most systematic organic pollutant exposure research known in the field at present.

The invention discloses a graphene nanometer heavy anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings. The coating is prepared from the following components in parts by mass: 50 to 70 parts of diallyl bisphenol A type epoxy resin, 8 to 15 parts of histidine modifier, 12 to 20 parts of graphene nano composite modified filler, 5 to 10 parts of curing agent, 0.5 to 2 parts of flatting agent and 0.3 to 1 part of defoaming agent. The preparation method of the histidine modifier comprises the following steps: carrying out a Schiff base reaction on 1-palmitoyl-2-oleoyl ethanolamine and N-formyl-L-histidine to generate an intermediate A; reacting with a spiro quaternization reagent to form a quaternary ammonium salt intermediate B; and then compounding with aminopropyltriethoxysilane and silicotungstic heteropoly acid salt to obtain the product. The graphene nano-composite modified filler is prepared by modifying the surface of a graphene oxide / bentonite mutual intercalation layer structure through allyl trimethoxy silane. The graphene nano heavy anti-corrosion coating prepared by the invention forms a high-density cross-linked network, and has excellent barrier property, strong adhesive force, impact resistance and long-acting anti-corrosion performance.

The invention discloses a glue solution for a copper-clad plate and a preparation method of the glue solution, and relates to the technical field of copper-clad plates. According to the prepared glue solution for the copper-clad plate, the composite epoxy resin, the curing agent, the accelerant, the solvent, the flexibilizer and the inorganic filler, the composite epoxy resin comprises bisphenol A epoxy resin, epoxy phenyl polysiloxane, itaconic acid polyaryletherketone and hydroxyl-terminated fluorine-containing vinyl polysiloxane, so that the interface bonding force with the copper plate is enhanced; the dielectric constant and the dielectric loss are effectively reduced, the peel strength and the toughness of the material are also remarkably improved, and the toughening agent is modified polyether sulfone microspheres; the modified polyethersulfone microspheres are prepared by coating polyethersulfone microspheres with hexamethylenediamine tetrapropionamide diamine, the hexamethylenediamine tetrapropionamide diamine is prepared by carrying out acylation condensation reaction on hexamethylenediamine tetramethyl propionate and ethylenediamine, and the polyethersulfone microspheres are prepared by carrying out electrostatic spinning on a spinning solution of polyethersulfone and vinylpyridine, so that the peel strength of the glue solution is remarkably improved.

The invention discloses a water-borne epoxy resin coating which comprises a component A and a component B, the component A is prepared from 60 to 80 parts of 50 percent modified water-borne epoxy resin emulsion, 5 to 15 parts of deionized water, 0.5 to 1 part of wetting dispersant, 0.2 to 0.8 part of defoaming agent, 5 to 10 parts of modified zinc phosphate, 3 to 5 parts of ion exchange antirust pigment, 4 to 6 parts of sericite powder, 3 to 5 parts of glass flake, 5 to 10 parts of precipitated barium sulphate, 1 to 5 parts of nano silicon dioxide and 0.5 to 1 part of rheological additive; 1 to 2 parts of modified organic bentonite slurry; 0.1 to 0.3 part of a pH conditioning agent; and 0.2 to 0.8 part of a flash rust inhibitor. The component B is prepared from 40 to 50 parts of waterborne epoxy-amine adduct, 20 to 30 parts of 50 percent modified polyamide curing agent, 5 to 15 parts of 60 percent Mannich base phenolic aldehyde amine curing agent, 0.5 to 1.5 parts of epoxy silane coupling agent, 1 to 2 parts of nonionic surfactant and 15 to 20 parts of deionized water. The emulsion stability of the waterborne epoxy resin coating is improved through a bisphenol A / F mixed epoxy emulsion and a grafted polyethylene glycol hydrophilic chain segment.

The invention relates to the technical field of optical protective materials, in particular to an anti-dazzle full-ultraviolet-proof optical protective material and a preparation method thereof.The anti-dazzle full-ultraviolet-proof optical protective material is formed by sequentially compounding a scratch-resistant hardened layer, a PET film layer a, a composite adhesive layer, a PET film layer b, an installation adhesive layer and a PET release film layer from top to bottom; the preparation method comprises the following steps: mixing organic silicon modified polyurethane acrylate, a pigment, a reactive diluent, a flatting agent, a photoinitiator, a solvent and modified nano silicon dioxide to prepare a photocurable scratch-resistant hardening coating liquid; in order to endow the optical material with excellent infrared barrier property and heat insulation property, cesium tungsten bronze is introduced into a composite adhesive layer as a filler, and in order to improve the adhesive power and water resistance of a composite adhesive solution, epoxy resin is taken as a base material, organic silicon modified polyurethane acrylate is introduced as a water-resistant component, acrylic acid is taken as tackifying resin, and a curing agent is taken as a curing agent. And bisphenol A ethoxylate dimethacrylate is used as a diluent.

The invention relates to a sludge biochar modified layered bimetallic oxide, and a preparation method and application thereof. The modified layered bimetallic oxide is prepared from the following main raw materials: domestic sewage aeration tank sludge, NaOH, Na2CO3, FeCl3. 6H2O and MnCl2. 4H2O. The domestic sewage aeration tank sludge is used for preparing dry sludge, the ferric chloride solution and the manganese chloride solution are used for preparing sludge composite layered double hydroxides, and the final layered bimetallic oxide composite sludge biochar catalyst can be prepared by calcining the sludge composite layered double hydroxides. The modified layered bimetallic oxide prepared by the scheme of the invention can effectively degrade bisphenol A, has relatively strong reusability, and still keeps good degradation ability in a relatively wide pH environment.

The invention discloses a high-temperature-resistant tough epoxy resin adhesive and a preparation method thereof, and relates to the technical field of epoxy resin, the high-temperature-resistant tough epoxy resin adhesive comprises the following components by mass: 30-60 parts of epoxy resin, 15-40 parts of a modified curing agent, 5-20 parts of a flexibilizer, 8-35 parts of an inorganic filler, 1-5 parts of a coupling agent, and 0.5-3 parts of an antioxidant; the epoxy resin is formed by compounding bisphenol A epoxy resin and novolac epoxy resin according to the mass ratio of (1-3): 1; the modified curing agent is prepared by modifying an imidazole curing agent with a silane coupling agent. The problem that high temperature resistance and toughness of an epoxy resin adhesive are difficult to consider at the same time can be solved.

The invention discloses a quick-curing polyurethane seamless expansion joint material for roads and a preparation method, and belongs to the technical field of road engineering materials. The material is prepared from polyether polyol, polycaprolactone glycol, a bisphenol A epoxy-polyether block isocyanate terminated prepolymer, a methyl phenyl silicon-boron hybrid hydroxyl chain extender, diphenylmethane diisocyanate, calcium carbonate, wollastonite, a hindered amine anti-aging agent and dioctyl phthalate. Wherein the bisphenol A epoxy-polyether block isocyanate terminated prepolymer is prepared by the following steps: reacting bisphenol A with epoxy chloropropane to generate epoxy resin, reacting with polytetramethylene ether glycol, and introducing isophorone diisocyanate; the methyl phenyl silicon-boron hybrid hydroxyl chain extender is prepared by carrying out hydrosilylation and ethylene glycol reaction on methyl trimethoxy silane, 3-glycidyl ether oxypropyl trimethoxy silane and allylboronic acid pinacol ester; and the methyl phenyl silicon-boron hybrid hydroxyl chain extender is prepared by carrying out hydrosilylation on methyl trimethoxy silane, 3-glycidyl ether oxypropyl trimethoxy silane and allylboronic acid pinacol ester. The material has the advantages of quick curing property, weather resistance and high-temperature stability, and is suitable for road seamless expansion joint scenes.

The invention relates to the technical field of PC transparent flame-retardant toughening modification, in particular to phenolic hydroxyl-terminated modified polysiloxane with a side chain containing phenyl and sulfonate groups and a preparation method of copolymerized PC. The modified polysiloxane is prepared by the following steps: performing ring opening polymerization on phenol-containing double end sockets and cyclotetrasiloxane to obtain modified polysiloxane containing double bonds and phenyl functional groups, and grafting sulfonate through a thiol-ene click chemical reaction. Diphenyl carbonate, bisphenol A and the modified polysiloxane are used as raw materials, a polysiloxane-PC block copolymer is formed through copolymerization, efficient flame retardance and high transparency are achieved, and meanwhile extremely high low-temperature impact strength is achieved.

The invention discloses an organic wastewater adsorbent as well as a preparation method and application thereof, and belongs to the technical field of sewage treatment. Comprising the following steps: carrying out nitration reaction on styrene porous microsphere resin, and then carrying out reduction reaction to obtain amino-modified porous microsphere resin; the preparation method comprises the following steps: carrying out polymerization reaction on high-nitrogen-content amino organic small molecules and aldehyde group small molecules under the action of a basic catalyst in an adsorption polymerization manner to generate a nitrogen-doped organic porous polymer, and coating the surface of amino-modified porous microsphere resin with the nitrogen-doped organic porous polymer to obtain the organic wastewater adsorbent. The porous microsphere resin adsorbent with large adsorption capacity and high organic matter removal rate is synthesized by using the carrier advantage of styrene microsphere resin and introducing a porous heteroatom polymer on the microsphere resin. When the adsorbent is used, the adsorbent is directly added into an organic wastewater solution, and the removal rate of bisphenol A, aniline and tetracycline can reach 90% or above.

The invention discloses an impregnation liquid for preparing hydrogenated bisphenol A through bisphenol A hydrogenation. The impregnation liquid comprises a Ru complex, a water-soluble nonionic surfactant and water, wherein the molecular size of the Ru complex is greater than 1nm. According to the preparation method disclosed by the invention, by adopting the impregnation liquid containing the Ru complex of which the molecular size is greater than 1nm and the water-soluble nonionic surfactant, more Ru complex of which the molecular size is greater than 1nm can exist in mesoporous channels of an activated carbon carrier in an impregnation process, so that the contact probability of an active phase and a reactant bisphenol A molecule is increased; the purposes of improving the active metal utilization rate and improving the catalyst activity are achieved.

The invention belongs to the technical field of polyurethane, and particularly relates to a polyurethane material for coal rock mass and a preparation method of the polyurethane material. The polyurethane material for the coal rock mass is composed of a white material and a black material according to the mass ratio of 1: 1, and the white material comprises the following raw materials: mining polyether polyol, a flame retardant and a catalyst; the black material comprises the following raw materials: a prepolymer and a flame retardant. According to the polyurethane material for the coal and rock mass, hexahydroxy triphenylene with a star-shaped molecular structure is introduced into mine polyether polyol synthesis, a highly-crosslinked star-shaped structure is formed, rigidity and flexibility are balanced, and meanwhile the crosslinking density and compressive strength of a product are improved; secondly, bisphenol A with a benzene ring structure is adopted as a raw material for synthesizing the prepolymer, the toughness and strength of the material are improved through the interaction of benzene rings, and the prepared polyurethane material is high in compressive strength and low in reaction heat and meets the requirements of the polyurethane material for coal rock mass; the invention further provides a preparation method, and the preparation process is simple.

The invention discloses a preparation method and application of a synergistically modified waterborne polyurethane emulsion, and belongs to the technical field of macromolecular waterborne polyurethane. The preparation method comprises the following steps: firstly, modifying diisocyanate by using binary fluoroalcohol to obtain a fluorine-containing isocyanate emulsion, then preparing a waterborne polyurethane prepolymer emulsion by using the fluorine-containing isocyanate emulsion and dihydric alcohol, and finally, modifying the waterborne polyurethane prepolymer emulsion by using bisphenol A type epoxy resin to prepare the synergistically modified waterborne polyurethane emulsion. An adhesive film prepared from the synergistically modified waterborne polyurethane emulsion has excellent water resistance, mechanical properties and thermal stability, the salt spray resistance is particularly remarkably improved compared with that of an adhesive film prepared from a single compound modified waterborne polyurethane emulsion, the maximum salt spray resistance can reach 18 months, and the adhesive film has good practical application value and industrial production prospects.

The invention discloses a self-template synthesized linear biochar-based bimetallic material as well as a preparation method and application thereof, and belongs to the technical field of carbon materials. The method comprises the following steps: pretreating ganoderma lucidum residues, and pyrolyzing in a nitrogen atmosphere to prepare charcoal; and mixing the prepared biochar with cobalt nitrate and sodium molybdate to prepare CoMoO4 nanoparticles with in-situ growth of the biochar, and then washing and drying to obtain the BC-coated CoMoO4 linear biochar-based bimetallic material. Heterojunctions formed by binding sites of cobalt-molybdenum bimetal and biochar in the material form more defect sites, the synergistic effect of the metal and the micro-nano fibrous biochar is exerted, the degradation rate in the application of catalytic degradation of bisphenol A can reach 98.18% or above, a multiple reaction mechanism with sulfate free radicals is jointly shown, and the photocatalytic degradation of bisphenol A is realized. And the method has higher adaptability and effectiveness for complex pollutants.

The invention relates to the technical field of high-molecular compounds, and discloses an epoxy resin material for a high-pressure conduit and a preparation method of the epoxy resin material. The preparation method comprises the following steps: preparing the following raw materials in parts by mass: 65-70 parts of bisphenol A epoxy resin; 55-60 parts of a curing agent; 0.1 to 0.2 part of an imidazole accelerant; 10 to 15 parts of a reactive diluent; and 8 to 15 parts of epoxy silicon dioxide. The diluent is prepared from N, N, N ', N'-tetraepoxypropyl-4, 4 '-diaminodiphenylmethane and ethylene glycol diglycidyl ether according to the mass ratio of 1 to (4 to 5); the curing agent comprises a polybenzimidazole curing agent, a polyethylene glycol curing agent and methyl tetrahydrophthalic anhydride in a mass ratio of (2-3): (2-3): (5-6). The epoxy resin material prepared by the invention has excellent electrical properties and mechanical properties.

The invention relates to the technical field of adhesives, in particular to a bio-based polyurethane hot melt adhesive and a preparation process thereof. The bio-based polyurethane hot melt adhesive is prepared from the following raw materials in parts by weight: 30 to 40 parts of bio-based polyester glycol, 60 to 80 parts of bio-based polyether polyol, 25 to 35 parts of acrylic resin, 40 to 60 parts of isophorone diisocyanate, 3 to 5 parts of bisphenol A epoxy resin E-44, 3 to 5 parts of 1, 3-butanediol, 1, 3-butanediol and 1, 3-butanediol. The coating is prepared from the following raw materials in parts by weight: 1-2 parts of 1, 4-butanediol, 0.2-0.6 part of dibutyltin dilaurate, 0.6-1.0 part of 3-aminopropyltriethoxysilane, 3-5 parts of modified carbon nanotubes, 2-4 parts of a curing agent, 1-1.5 parts of an ultraviolet absorbent and 0.8-1.2 parts of an antioxidant. The bio-based polyurethane hot melt adhesive prepared by the invention not only has better adhesive property, but also has excellent mechanical property and aging resistance, and the quality of the bio-based polyurethane hot melt adhesive is ensured while the service life of the bio-based polyurethane hot melt adhesive is effectively prolonged.

The invention discloses an energetic slurry toughening and photocuring 3D printing method, relates to a preparation method of energetic slurry, and aims to solve the problems that an existing energetic material is poor in mechanical property, poor in toughness and easy to crack; the particles are fast to settle in the light-cured resin, the stability is poor, and the printing precision is poor. The invention develops a photocuring high-energy resin for photopolymerization additive manufacturing. The composition contains a high-energy filler, an acrylate adhesive, whiskers and an inert plasticizer. The material has the characteristics of compatibility, printability and mechanical property, and the possibility of printing increasingly complicated high-energy articles is proved through experiments. The preparation method of the light-cured resin comprises the following steps: adding the low polymer bisphenol A epoxy acrylate and the six-functionality polyurethane acrylate; diluting monomers including 1, 6-hexanediol diacrylate and trimethylolpropane triacrylate; uniformly mixing an auxiliary agent, a thickening agent and a dispersing agent, and magnetically stirring for 30 minutes to obtain the light-cured resin. A preparation method of the energetic slurry comprises the following steps: mixing light-cured resin, whiskers, an inert plasticizer, energetic particles, a photoinitiator and a light absorber, and uniformly stirring to obtain the energetic slurry; after the energetic slurry is used for 3D printing, a sample piece is obtained, the yield reaches 95%-100%, the cost is low, preparation is easy, and the method can be applied to the field of energetic slurry 3D printing.

The invention discloses a low-temperature curing high-throwing-power cathode electrophoretic coating and a preparation method and application thereof, and belongs to the field of automobile coating materials, the coating is composed of epoxy resin, a fluorosilicone copolymerization type epoxy modifier, a polyamino siloxane-acrylic acid hybrid and other components, and performance improvement is achieved through the synergistic effect of the two brand-new modifiers. Wherein the fluorine-silicon copolymerization type epoxy modifier is prepared by taking bisphenol A epoxy resin as a framework, introducing fluorine-containing alkyl and siloxane groups and carrying out ultraviolet reaction, so that the surface energy is reduced, and low-temperature crosslinking is promoted; the polyamido siloxane-acrylic acid hybrid takes siloxane as a core, and acrylic acid and polyamido are bridged through isocyanate, so that the crosslinking density and the water solubility are enhanced. When the coating is prepared, the two modifiers are mixed with epoxy resin, a solvent and the like, and the coating is prepared through dispersion and dilution. The coating can be cured at low temperature, so that a uniform thick film is obtained in an inner cavity of a complex workpiece, and meanwhile, the coating has excellent corrosion resistance and adhesive force and is suitable for efficient and environment-friendly coating of an automobile body and parts.

The invention relates to the technical field of materials and advanced oxidation, and discloses a covalent organic framework catalyst with a benzothiadiazole structure, a preparation method of the covalent organic framework catalyst and application of the covalent organic framework catalyst in peroxymonosulfate (PMS) activation and organic pollutant degradation. The preparation method of the covalent organic framework catalyst comprises the following steps: adding precursors 1, 3, 6, 8-tetra-(p-aminophenyl)-pyrene and 2, 7-dibenzaldehyde-benzothiadiazole into a mixed solvent composed of o-dichlorobenzene and n-butyl alcohol, carrying out a reaction by using acetic acid as a catalyst through a solvothermal method, and after the reaction, carrying out multiple times of centrifugal washing and drying to obtain the covalent organic framework catalyst. The catalyst shows excellent performance in the aspect of activating PMS to degrade organic pollutants, the degradation rate constant of bisphenol A reaches 1.68 min <-1 >, and 100% removal can be achieved within 5 minutes. Meanwhile, the catalyst has the advantages of no secondary pollution, strong anti-interference performance, reusability and the like. Compared with a traditional method, the catalyst has high PMS activation efficiency, the catalysis process is energy-saving and environment-friendly, the operation is simple and convenient, the preparation process is simple and feasible, and a new solution is provided for efficient degradation of organic pollutants in water.

The invention discloses a protective coating for an aluminum alloy heat exchange tube and a preparation method of the protective coating, and relates to the technical field of coating materials. The protective coating for the aluminum alloy heat exchange tube at least comprises the following raw materials in parts by mass: 100 parts of bisphenol A epoxy resin; 28 to 32 parts of polyether amine D230; 8 to 12 parts of a modified MgAlCe-BTC-LDH filling material; 4 to 6 parts of polydopamine modified hexagonal boron nitride; 35 to 45 parts of propylene glycol methyl ether acetate; and 1-2 parts of a dispersant. The modified MgAlCe-BTC-LDH filler prepared by the invention realizes triple functions of Ce element oxidation resistance, BTC corrosion inhibition and layered barrier, and the polydopamine modified hexagonal boron nitride prepared by the invention effectively improves the heat-conducting property, solves the contradiction between insulation and heat conduction, and adapts to the protection requirement of an aluminum alloy heat exchange tube.

This anticorrosive coating composition comprises a main agent (I) and a curing agent (II), wherein: the main agent (I) contains an epoxy resin (a); the epoxy resin (a) contains at least one of a bisphenol A epoxy resin (a-11) and a novolac epoxy resin (a-12) each having a weight average molecular weight of 6,000-12,000; the curing agent (II) contains a polyamine (b) and an alkylphenol (c); the polyamine (b) contains an alicyclic polyamine (b-1) having a cyclic aliphatic hydrocarbon group to which an amino group is bonded and contains a non-alicyclic polyamine (b-2) having no cyclic aliphatic hydrocarbon group to which an amino group is bonded; at least one of the main agent (I) and the curing agent (II) includes a vinyl-based defoaming agent (d) that has a constituent unit derived from at least one monomer selected from the group consisting of alkyl (meth)acrylates, alkyl vinyl ethers, and olefins and that has a number average molecular weight of 30,000-100,000 or 300,000-2,000,000; the content of the alicyclic polyamine (b-1) is 30%-80% by mass of the solid content of the curing agent (II); the content of the non-alicyclic polyamine (b-2) is 2%-45% by mass of the solid content of the curing agent (II); the content of the alkylphenol (c) is 5%-60% by mass of the solid content of the curing agent (II); and the content of the vinyl-based defoaming agent (d) is 0.005-3 parts by mass with respect to 100 parts by mass of the anticorrosive coating composition.

The invention belongs to the technical field of insulating materials, and particularly relates to a high-voltage-resistant wear-resistant insulating photocureable coating, a preparation method thereof and a power battery shell coating. The high-pressure-resistant wear-resistant insulating photocureable coating is formed by mixing sulfonated bisphenol A epoxy acrylate, modified polyurethane acrylate and a photoinitiator; the sulfonated bisphenol A epoxy acrylate is prepared by carrying out epoxy ring-opening reaction on bisphenol A epoxy resin and 2-acrylamide-2-methylpropanesulfonic acid under the catalytic action; and the modified polyurethane acrylate is bifunctional organic silicon grafted polyurethane acrylate. A coating for a power battery shell, which is formed by the high-voltage-resistant wear-resistant insulating photocureable coating disclosed by the invention, is excellent in insulating property, can meet the insulating requirement of the power battery shell under a 800V framework at the present stage, and in addition, the formed coating has excellent wear resistance and shows good application and popularization prospects.

The invention discloses an epoxy powder coating and a preparation method thereof, and belongs to the technical field of powder coating production, firstly, the epoxy powder coating is prepared from the following raw materials in parts by mass: 100 parts of epoxy resin, 15-20 parts of modified phenolic resin, 12-15 parts of carboxyl-terminated polyester resin, 4-8 parts of nano cerium oxide coated mica, 1.5-2.0 parts of a flatting agent and 0.5-1.0 part of benzoin; the modified phenolic resin is prepared by carrying out addition on bisphenol A phenolic resin and DOPO, neutralizing and carrying out reduced pressure distillation; the carboxyl-terminated polyester resin is prepared by carrying out esterification polycondensation on terephthalic acid, isophthalic acid, neopentyl glycol and trimethylolpropane, and then modifying by trimellitic anhydride; the nano cerium oxide coated mica is prepared by coating white mica powder with cerium oxide precipitate, and then carrying out surface treatment and crushing.

The invention discloses an insulating material with corrosion resistance and a production process thereof, and relates to the technical field of insulating materials. The invention discloses an insulating material with corrosion resistance. The invention discloses a flame-retardant coating which is prepared from the following raw materials in parts by weight: 60 to 80 parts of bisphenol A epoxy resin, 20 to 30 parts of polyether-ether-ketone, 10 to 15 parts of nano aluminum nitride, 5 to 10 parts of boron fiber, 4 to 8 parts of molybdenum disulfide, 3 to 6 parts of poly (p-phenylene benzobisoxazole), 2 to 5 parts of vinyl trimethoxy silane, 20 to 30 parts of dimethyl sulfoxide, 8 to 12 parts of melamine cyanurate, 6 to 10 parts of magnesium aluminum hydroxide, 1 to 3 parts of Chimassorb 944 and 10 to 20 parts of modified polyvinyl alcohol. The coating is prepared from the following components in parts by weight: 20-30 parts of modified cellulose, 8-15 parts of modified cellulose, 3-7 parts of nano-zirconia, 5-10 parts of polysiloxane elastomer and 7-12 parts of fluorine-containing acrylate copolymer. The raw materials of the insulating material have a synergistic effect, and the prepared insulating material not only has conventional electrical insulation, but also has excellent heat resistance, corrosion resistance and the like, integrates hardness, flexibility, flame retardance and self-repairing performance, greatly expands the application range of the insulating material, and provides powerful support for industry development.

The invention relates to the technical field of polyurethane compositions, in particular to a chlorotrifluoropropene-based high-temperature-resistant polyurethane composition and a preparation process thereof, and the chlorotrifluoropropene-based high-temperature-resistant polyurethane composition comprises the following raw materials: hydroxylated chlorotrifluoropropene, modified hexamethylene diisocyanate tripolymer, phthalic anhydride polyester polyol, nano silicon carbide whiskers and polyimide microspheres. A fluorine element is introduced into hydroxylated chlorotrifluoropropene, so that the thermal decomposition temperature of the material is remarkably increased, and thermal movement and oxidative degradation of a molecular chain at high temperature are inhibited; meanwhile, a rigid benzene ring structure of bisphenol A dihydroxyethyl ether improves the regularity of a molecular chain and reduces high-temperature softening deformation. The modified hexamethylene diisocyanate tripolymer forms a stable siloxane cross-linked network, so that the thermal stability of the material is further enhanced; in addition, an isocyanate group reacts with hydroxyl to generate a high-density carbamate crosslinking point, so that the regularity of a hard segment is enhanced, and the thermal stability of the material is improved.

The invention discloses a flame-retardant cable and a preparation method thereof. The cable comprises conductor wire cores, a fireproof layer, an insulating layer, a shielding layer, a filling layer and a sheath layer from inside to outside. According to the cable sheath layer, 100 parts of high density polyethylene (HDPE), 5-15 parts of ethylene-vinyl acetate rubber and 3-10 parts of fluororubber are used as main materials, triallyl isocyanurate and bisphenol A diallyl ether are introduced for synergistic crosslinking, and nano montmorillonite is used as an auxiliary material, so that a compact interpenetrating network is constructed. The tensile strength of the sheath layer composite material is greater than or equal to 26.5 MPa, the elongation at break is greater than or equal to 387%, the performance retention rate is greater than 92% after the sheath layer composite material is soaked in slurry for 28 days, the limit oxygen index is greater than 38%, the water vapor transmission coefficient is less than or equal to 1.5 * 10 <-4 > g.mm / (m < 2 >. D.Pa), and the sheath layer composite material has excellent flame retardance, barrier property and slurry resistance and is suitable for harsh outdoor environments such as rail transit.

The invention relates to a high-thermal-conductivity low-dielectric epoxy resin composition and a preparation method thereof, and the high-thermal-conductivity low-dielectric epoxy resin composition comprises the following raw materials in parts by weight: 13-16 parts of a thermal conductive filler, 45-50 parts of epoxy resin, 23-27 parts of a curing agent and 0.3-0.7 part of an accelerant, the heat-conducting filler comprises attapulgite, modified boron nitride and aramid fiber in a mass ratio of (0.7-0.9): (6-9): (0.2-0.5). The attapulgite, the modified boron nitride and the aramid fiber are used as heat-conducting fillers, the dicyclopentadiene epoxy resin and the bisphenol A epoxy resin are used as epoxy resin, and the epoxy resin with high heat conductivity and low dielectric property is prepared by means of weakening charge transfer among molecules, reducing polarization effect, forming a three-dimensional heat-conducting network and the like.