4102 results about "Polysiloxene" patented technology

The invention relates to the technical field of power transmission, in particular to a moisture-proof cable which sequentially comprises a conductive wire core, a gradient buffer layer, a dynamic sealing layer, a flexible supporting layer and a self-repairing sheath from inside to outside. A gradient buffer layer; the dynamic sealing layer is of a split type sealing structure formed by an outer ring surface sealing lip and an inner ring surface static sealing belt, the outer ring surface sealing lip is formed by embedding a polytetrafluoroethylene fiber reinforcing layer in a silicone rubber matrix, and the surface of the outer ring surface sealing lip is coated with a humidity response type graphene coating; the flexible supporting layer is formed by spirally winding a nickel-titanium alloy belt, and bionic fish scales are welded to the surface of the nickel-titanium alloy belt; the self-repairing sheath is characterized in that a hexagonal honeycomb structure is molded on the outer layer, hydroxyl-terminated polysiloxane and a platinum catalyst are contained in an A-type microcapsule, and modified epoxy resin is contained in a B-type microcapsule. The moisture-proof cable shows excellent corrosion resistance, moisture resistance and self-repairing capability in a humid environment, and can maintain good performance when subjected to external physical impact.

The invention relates to the field of friction materials, and discloses a friction material with a stable friction coefficient for an electromagnetic brake and a preparation method of the friction material. An adhesive comprises polysiloxane modified phenolic resin, benzoxazine and butyronitrile rubber powder; the reinforcing material comprises 1414 para-aramid pulp, calcium sulfate whiskers, composite mineral fibers, copper fibers and modified needle-like wollastonite; the friction increasing material comprises macroporous shell activated carbon, friction particles, garnet powder, barite and nano hafnium nitride; the antifriction material comprises graphite fluoride, nylon and composite modified hydroxyl silicate; the composite modified hydroxyl silicate is obtained by modifying hydroxyl silicate with diisocyanate and stearic acid and then compounding silane modified micro-nano calcium carbonate. The friction material provided by the invention is used for improving the braking stability of an electromagnetic brake and reducing equipment vibration.

The invention discloses a preparation method of a B1-grade flame-retardant fire-resistant control cable, belongs to the technical field of flame-retardant fire-resistant cables, and aims to solve the technical problem that the mechanical strength and the fire-resistant and flame-retardant performance of an inorganic flame-retardant modified fire-resistant fire-resistant control cable in the prior art need to be further improved. The method comprises the following steps that a plurality of cable cores are arranged in parallel, gaps among the cable cores are filled with filling ropes to form filling layers, the cable cores filled with the filling layers are wrapped together through a wrapping tape, and a wrapping layer is formed outside the cable cores. According to the invention, maleic anhydride modified polyethylene is used as a phase solvent, and polyethylene is cross-linked and enhanced by modified graphite and modified polysiloxane, so that not only is the mechanical strength of the cable material effectively improved, but also the fire resistance and flame retardance of the cable material are improved.

The invention discloses a high-elasticity water-resistant flexible waterborne polyurethane elastic film product, and belongs to the field of waterborne polyurethane elastic film products. The waterborne polyurethane structure contains a strong supramolecular dynamic crosslinking unit and a polysiloxane unit, the strong supramolecular dynamic crosslinking unit has a metal-ligand effect and an optional multiple hydrogen bond effect, and the metal-ligand effect is preformed. In the polymerization process of the waterborne polyurethane, a preformed metal complex with a metal-ligand function serves as a weaving node, and the metal complex serves as a monomer and is cross-linked with a waterborne polyurethane chain segment. Due to the woven cross-linked interweaving structure, macromolecular chains connected to weaving nodes are spontaneously entangled. High polymer chain entanglement, reversibility of dynamic bonds and a cross-linked network endow the film with high strength, high elasticity, high flexibility and high density; meanwhile, the polysiloxane endows the film with water resistance and low viscosity. The waterborne polyurethane elastic film product prepared by adopting the structure is super-flexible, high in elasticity and good in water resistance.

The invention discloses a self-repairing polymer electrolyte, a preparation method and application thereof, and a polymer lithium battery, the self-repairing polymer electrolyte comprises the following preparation raw materials by mass: 50-100 parts of polysiloxane diacrylate, 1-10 parts of disulfide diacrylate, 10-40 parts of a cross-linking agent, 60-120 parts of a plasticizer, 60-120 parts of a lithium salt, and 1-10 parts of a photoinitiator. According to the self-repairing polymer electrolyte disclosed by the invention, a thiol-ene click reaction can be carried out between carbon-carbon double bonds in polysiloxane diacrylate and disulfide diacrylate and sulfydryl of the cross-linking agent, so that a dynamic disulfide bond and hydrogen bond network structure is endowed to the self-repairing polymer electrolyte; and the dynamic disulfide bond and the hydrogen bond can enable the electrolyte membrane to realize self-healing at room temperature without external stimulation.

The invention relates to the technical field of epoxy resin paint, and discloses waterborne epoxy paint suitable for containers and a preparation method of the waterborne epoxy paint. A component A of the waterborne epoxy paint comprises, by weight, 100 parts of waterborne epoxy resin and 0.5-0.8 part of a flash rust inhibitor; the component B comprises 6-8 parts by weight of a polyamide curing agent, 5-12 parts by weight of an organosilicon sulfonate polyurethane toughening agent and 0.2-1 part by weight of graphene oxide; the organic silicon polyurethane flexibilizer can play a role of a dispersing agent, the dispersity of graphene in the waterborne epoxy paint is improved, the main chain of the organic silicon polyurethane flexibilizer contains imino groups, the organic silicon polyurethane flexibilizer can be subjected to a curing reaction with epoxy resin, a flexible organic polysiloxane molecular chain is bonded into an epoxy resin molecular chain, and the flexibility of the waterborne epoxy paint is improved. A good toughening effect is achieved, so that the flexibility, the impact resistance and the corrosion resistance of a paint film are improved.

The invention relates to the technical field of fabrics, and discloses a preparation method of an anti-wrinkle comfortable fabric, which comprises the following steps: by taking alkyl diamine, acrylonitrile, gamma-chloropropyl methyl dimethoxy silane and the like as raw materials, carrying out addition reaction, hydrolysis reaction and quaternization reaction to obtain polycarboxyl disilane gemini quaternary ammonium salt; octamethylcyclotetrasiloxane, polycarboxyl disilane gemini quaternary ammonium salt and the like are used as raw materials, quaternary ammonium salt modified polysiloxane is obtained through base catalysis copolymerization, then the quaternary ammonium salt modified polysiloxane is emulsified and prepared into finishing liquid, pure cotton fabric is soaked in the finishing liquid, and the anti-wrinkle comfortable fabric is obtained through two-dipping and two-rolling finishing. The crease resistance of the fabric is improved by utilizing a large number of amino groups and carboxyl groups contained in the finishing liquid, and the antibacterial property of the fabric is improved by utilizing a quaternary ammonium salt structure contained in the finishing liquid. Experiments prove that the prepared fabric has good crease-resistant comfort performance and antibacterial performance.

The invention discloses a neodymium iron boron composite magnet and a production process thereof, and belongs to the technical field of magnetic materials. Carrying out sand blasting and phosphoric acid treatment on the neodymium-iron-boron magnet to obtain a pretreated neodymium-iron-boron magnet; and mixing 50-60 parts of epoxy resin, 30-40 parts of polyurethane and 10-20 parts of polysiloxane, then adding 10-20 parts of a solvent, 8-16 parts of filler, 3-5 parts of an auxiliary agent and 1-3 parts of dibenzoyl peroxide, stirring to obtain a protective coating, then spraying the protective coating on the surface of the pretreated neodymium-iron-boron magnet, and curing to obtain the neodymium-iron-boron composite magnet. The auxiliary agent contains a hindered phenol structure, a benzotriazole structure and fluorine atoms, and a hybrid cross-linked network structure is formed among the auxiliary agent, the epoxy resin and the filler, so that the auxiliary agent and the filler can be highly dispersed and stably exist in the protective coating and fully play roles, and the protective coating has the advantages that the protective coating is more stable in performance due to the combined action of the other raw materials in the protective coating; the neodymium-iron-boron composite magnet has excellent and stable water resistance, aging resistance, corrosion resistance and the like.

The invention relates to an antibacterial and anti-fouling ceramic product glaze and a preparation method, and belongs to the technical field of ceramic product glaze preparation, the ceramic product glaze comprises the following raw materials: a component A: a base material, a water glass solution, a sodium bicarbonate solution, a gadolinium nitrate solution, a europium nitrate solution, a silver nitrate solution and sodium cocoate; and the component B comprises the following components: dimethoxy methyl (3, 3, 3-trifluoropropyl) silicon, polysiloxane, dodecenyl succinic anhydride, gamma-methacryloxy propyl trimethoxy silane and white gasoline. Silver nitrate serves as a main material, europium nitrate serves as an auxiliary material, gadolinium nitrate excites the activity of silver and europium ions, and the silver nitrate, the europium nitrate and the gadolinium nitrate cooperate, so that the prepared ceramic product glaze has excellent antibacterial performance; sodium cocoate is added to form a steric hindrance effect, so that agglomeration among system particles is inhibited, and the antibacterial property of the glaze is enhanced; according to the anti-fouling glaze disclosed by the invention, the dimethoxymethyl (3, 3, 3-trifluoropropyl) silicon and the polysiloxane are added, so that the prepared glaze has a lasting anti-fouling effect.

The invention discloses an aerogel fire extinguishing agent for fire fighting, a fire extinguishing device and a releasing method.The aerogel fire extinguishing agent for fire fighting is prepared from, by mass, 8-12 parts of silicon dioxide aerogel powder, 40-45 parts of perfluorohexanone, 1.5-2 parts of zinc molybdate, 0.8-1.2 parts of nano cerium oxide, 2-3 parts of hyperbranched polysiloxane and 0.2-0.3 part of 18-crown-6 ether. Solid-phase silicon dioxide aerogel powder is matched with liquid-phase perfluorohexanone, zinc molybdate, nano cerium oxide, hyperbranched polysiloxane, 18-crown-6 ether and the like are compounded to serve as auxiliaries, efficient fire extinguishing can be conducted on precise electrical elements, residues are few, loss of instruments and equipment is small, and the fire extinguishing agent is suitable for being applied to the electrical field.

The invention discloses a polysiloxane elastic waterproof coating and a preparation method thereof, and the polysiloxane elastic waterproof coating comprises the following raw materials: 35-60 parts of methyl polysiloxane resin, 8-12 parts of acrylic resin, 15-20 parts of a filler, 2-5 parts of a thickener, 1-3 parts of a dispersant, 1-3 parts of a coalescing agent, 1-2 parts of an antifoaming agent, 1-3 parts of a leveling agent and 10-20 parts of water. The polysiloxane elastic waterproof coating is obtained by mixing and stirring all the raw materials according to a reasonable proportion, and the polysiloxane elastic waterproof coating is obtained after the coating is dried, and the polysiloxane elastic waterproof coating provided by the invention has excellent adhesion performance, waterproof performance, tensile performance and aging resistance; the waterproof paint can be widely applied to waterproofing of metal materials and building industries.

The invention relates to the field of heat transfer films, in particular to a single-sided water-based environment-friendly pyrograph film and a preparation process thereof. The water-based release film sequentially comprises an ink absorption layer, a water-based release layer and a base layer from the upper surface to the lower surface, the water-based release layer is obtained by curing a water-based release agent, and the water-based release agent is prepared from the following raw materials in percentage by weight: modified water-based acrylate, deionized water, a cross-linking agent, a defoaming agent and modified polyurethane; the modified water-based acrylate is prepared from alkenyl siloxane, hydrogen-containing polysiloxane, phenyl hydroxyl reticular silicon resin, a bonding aid, a surfactant and water; according to the scheme, the obtained water-based release layer is stably adhered to the base layer, the ink absorption layer can be rapidly separated from the water-based release layer during heat transfer printing, and the transfer printing efficiency and the transfer printing quality are improved.

The invention relates to the technical field of special coating materials, in particular to a high-temperature-resistant heavy-duty anticorrosive fluorosilicone polymer coating as well as a preparation method and application thereof. The high-temperature-resistant heavy-duty anticorrosive fluorosilicone polymer coating is prepared from the following components in parts by mass: 80-100 parts of fluorosilicone resin, 10-15 parts of a nano anticorrosive material, 5-15 parts of wear-resistant powder, 5-10 parts of an anti-rust pigment, 1-2 parts of a siloxane dispersant, 1-2 parts of a polysiloxane defoaming agent, 1-2 parts of an organic silicon leveling agent, 1-3 parts of a polyamide wax anti-settling aid and 25-35 parts of an amino curing agent. 2 to 5 parts of an amino silane coupling agent; and the fluorosilicone resin has the molecular weight of 8000-12000 and contains silicon oxygen bonds. The high-temperature-resistant heavy-duty anti-corrosion fluorosilicone polymer coating prepared by the invention improves the adhesive force to a substrate, can be cured at normal temperature, and has excellent high-temperature anti-corrosion performance.

The invention discloses a silica gel material and a preparation method thereof, a silica gel tube, an implant and a preparation method and application thereof. The silica gel material comprises the following components in parts by weight: 100 parts of R-vinyl polysiloxane; 10 to 80 parts of a reinforcing agent; 0.000002 to 1 part of a catalyst; wherein R in the R-vinyl polysiloxane is substituted or unsubstituted straight-chain alkane or branched alkane of C1-C5, and substituted or unsubstituted aromatic hydrocarbon of C6-C20, and R in the R-vinyl polysiloxane is substituted or unsubstituted straight-chain alkane or branched alkane of C1-C5, or substituted or unsubstituted aromatic hydrocarbon of C6-C20; the content of vinyl in the R-vinyl polysiloxane ranges from 0.1 mol% to 0.5 mol%; the components contained in the reinforcing agent comprise hydrophilic groups; the content of Si-H groups in the hydrogen-containing silicone oil is 0.18 mol% to 1.6 mol%; the molar ratio of the Si-H group in the hydrogen-containing silicone oil to the vinyl group in the R-vinyl polysiloxane is (0.5-10): 1; optionally, the composition also comprises an inhibitor. According to the silica gel material provided by the invention, the permeability of water to the silica gel tube is increased while the mechanical property is met, so that the release amount of a medicine is increased, and the defect of low in-vitro release degree in the prior art is improved.

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 belongs to the technical field of paint coatings, and particularly relates to a hydrophobic heat-conducting self-repairing coating and a preparation method thereof. The preparation method of the hydrophobic heat-conducting self-repairing coating comprises the following steps: ultrasonically dispersing a heat-conducting filler and polyethylene glycol in an organic solvent, dropwise adding into a water-borne epoxy resin solution, and stirring to obtain a heat-conducting coating solution; the method comprises the following steps: dropwise adding a liquid A containing polysiloxane and a fluorine-containing monomer into a liquid B containing polyethylene glycol, stirring, carrying out centrifugal suction filtration, and drying to obtain the self-repairing microcapsule. Then adding the self-repairing microcapsules and silicon dioxide into the fluorine-containing polymer solution and / or the hydrophobic resin solution, and carrying out ultrasonic dispersion to prepare a self-repairing hydrophobic coating solution; the heat-conducting coating liquid and the self-repairing hydrophobic coating liquid are uniformly sprayed or spin-coated on the surface of a metal base material in sequence and then are subjected to UV curing, and the hydrophobic heat-conducting self-repairing coating is prepared. According to the method, the process and raw materials are simple, and the prepared coating has heat conduction and self-repairing performance and is excellent in anti-aging performance.

The invention relates to the technical field of cable materials, and provides a flexible EVA cable sheath material and a preparation method thereof. The cable sheath material is prepared from the following raw materials in parts by weight: 25 to 50 parts of ethylene-vinyl acetate copolymer EVA, 15 to 30 parts of ultra-low density polyethylene, 2 to 10 parts of grafted EVA, 2 to 10 parts of flame retardant, 2 to 10 parts of polydopamine modified montmorillonite-boron nitride fiber composite material, 0.5 to 3 parts of flexibilizer, 0.2 to 1 part of silicone and 0.2 to 1 part of organopolysiloxane. A grafting monomer for grafting EVA comprises maleic anhydride and / or an acrylate compound; the polydopamine modified montmorillonite-boron nitride fiber composite material is prepared from montmorillonite, boron nitride fibers, hydroxylated lignin, dopamine hydrochloride and polyethyleneimine through a reaction. Various functional raw materials are compounded, and the obtained cable sheath has good flexibility, flame retardance, thermal deformation resistance, aging resistance and mechanical performance.

The invention relates to the technical field of material processing, and discloses a silicon-containing composition for processing a chlorine-containing polyolefin material and a preparation method, which are used for solving the problems of processing and extrusion of the chlorine-containing polyolefin composite material. The invention relates to a silicon-containing composition for processing a chlorine-containing polyolefin material. The silicon-containing composition comprises 5-95 parts of modified polysiloxane, 5-95 parts of hydrocarbon wax, 5-95 parts of fatty acid amide, 5-95 parts of metallic soap and 1-5 parts of other auxiliaries. The silicon-containing composition for processing the chlorine-containing polyolefin material is applied to processing and extrusion of the chlorine-containing polyolefin composite material, modified polysiloxane not only contains a plastic-loving part but also contains a filler-loving part, and meanwhile, the whole molecular structure takes organic silicon as a main chain, so that the special performance of the organic silicon is achieved; according to the present invention, the chlorine-containing polyolefin composite material is compounded with other lubricants so as to achieve efficient internal and external lubrication, high cost performance and no precipitation, can effectively delay the decomposition time of the chlorine-containing polyolefin, can weaken the adhesion effect between the chlorine-containing polyolefin and the metal, can substantially prolong the screw cleaning time during the processing of the chlorine-containing polyolefin composite material, and can improve the production efficiency.

The invention discloses a low-temperature-resistant hydrolysis-resistant polyurethane protector material and a preparation method thereof. The low-temperature-resistant hydrolysis-resistant polyurethane protector material is prepared from a component A and a component B through cross-linking and curing, wherein the component A is prepared from polyether polyol, bifunctional hydroxyl-terminated polysiloxane, modified polyborosiloxane, a cross-linking agent, a chain extender, a foaming agent, a foam stabilizer, a catalyst and a pore opening agent, and the component B is isocyanate. The protective clothing prepared from the material has excellent buffer energy absorption performance, low temperature resistance and hydrolysis resistance, and meets the use requirements in extremely cold weather.

The invention relates to a ceramic coating for a gravure etching pot and a coating method of the ceramic coating, and belongs to the technical field of ceramic coatings. The ceramic coating comprises the primer and the finish paint, and the nano silicon dioxide sol, the inorganic pigment and the modified silicon dioxide filler in the primer jointly form a firm primer layer, so that the adhesive force of the coating and a base material is enhanced, and meanwhile, the wear resistance of the coating is improved; the reticular molecular structure of polysiloxane is stable at high temperature, so that the overall temperature resistance of the coating is improved; by adding the hollow glass beads, the density and hardness of the coating can be adjusted, and meanwhile, the heat insulation performance of the coating can be improved; the viscosity of the coating can be optimized by adjusting the contents of formic acid and deionized water, so that the coating is easier to construct and coat; and the polydimethylsiloxane is added into the finish paint, so that the non-stickiness of the coating is remarkably improved, and the surface is smoother and is easy to clean.

The invention discloses a heat-dissipation flame-retardant composite material as well as a preparation method and application thereof, and belongs to the field of functional composite materials. The preparation method comprises the following steps: S1, mixing a ceramic filler with a phosphorus-containing modifier, and carrying out inorganic modification to obtain a first modified filler; s2, mixing the first modified filler with an organic modifier to obtain a second modified filler; s3, mixing the second modified filler with the polymer matrix to obtain the heat-dissipation flame-retardant composite material. The organic modifier is at least one of polysilazane, polysilazane and polysiloxane. The phosphorus-containing modifier and the organic modifier are adopted to modify the ceramic filler, so that the flame retardant property, the thermal stability and the high temperature resistance of the composite material are improved, the compatibility between the ceramic filler and the filler and between the filler and a polymer substrate is improved, the dispersity of the ceramic filler in the polymer substrate is improved, and the thermal resistance of the composite material is reduced; and the heat dissipation capability of the composite material is improved.

The invention discloses a modified polysiloxane coating for a stainless steel pot and a preparation method of the modified polysiloxane coating, and belongs to the technical field of polysiloxane coatings. Comprising the following raw materials in parts by weight: 60-70 parts of hydroxyl polydimethylsiloxane, 20-30 parts of acrylate resin, 15-20 parts of ethanol, 25-30 parts of deionized water, 6-18 parts of modified nano aluminum oxide, 2-4 parts of a friction reducing agent, 0.2-0.4 part of benzophenone and 1-3 parts of a flatting agent. Polysiloxane is used as a main component, so that the coating is endowed with excellent heat resistance; wherein the antifriction agent can improve the wear resistance of the coating; wherein the leveling agent improves the surface flatness of the coating; wherein the modified nano aluminum oxide has good compatibility with polysiloxane, is not easy to agglomerate in the coating, has good dispersity, and can greatly improve the heat resistance, hardness and easy-to-clean property of the coating; the performance is stable and the service life is long; the method has important application value in the technical field of polysiloxane coatings.

The invention relates to the field of wear-resistant fabrics, and discloses a high-strength wear-resistant fabric and a preparation method thereof.The high-strength wear-resistant fabric comprises a surface coating and a base cloth layer, the surface coating and the base cloth layer are formed by coating and drying modified waterborne polyurethane emulsion, and the modified waterborne polyurethane emulsion comprises isophorone diisocyanate, ethylene glycol terephthalate, 2, 3, 4-trimethyl-1, 3-pentanediol monoisobutyrate, polyisobutylene glycol monoisobutyrate, according to the present invention, 2, 2-dimethylolpropionic acid, a modified additive, a flame retardant modifier, 1, 4-butanediol, trimethylolpropane and the like are adopted to prepare the modified additive, dopamine is subjected to in-situ auto-polymerization on the surface of a titanium dioxide nanotube, nano-silica is grown on the surface in situ, and modification is performed through a polysiloxane solution to prepare the modified titanium dioxide nanotube flame retardant; the polysiloxane solution is prepared by carrying out a reaction on methyl triethoxysilane and dihydroxyl-terminated polydimethylsiloxane; the flame-retardant modifier is prepared by reacting 2-chloro-4, 6-diamino-1, 3, 5-triazine, 5-hydroxymethylfurfural and phosphorous acid, so that the fabric is endowed with good mechanical properties and wear resistance, and the fabric has a hydrophobic surface and is excellent in flame retardance and durability.

The invention relates to the field of coatings, and discloses a solvent-resistant antirust anticorrosive biological resin coating and a preparation method thereof, the biological resin coating comprises modified bio-based epoxy resin, modified graphene oxide, modified nano titanium dioxide, a curing agent and a diluent; the modified bio-based epoxy resin is prepared by modifying epoxidized polysiloxane formed by self-polymerization of siloxane; the modified nano titanium dioxide is prepared by modifying a fluorine-containing group; the modified graphene oxide is prepared by grafting a flame-retardant modifier on the surface of graphene oxide, the flame-retardant modifier is prepared by reacting 3-amino-1, 2, 4-triazole with phosphonitrilic chloride trimer to prepare a flame-retardant intermediate, then grafting the flame-retardant intermediate and gamma-aminopropyltriethoxysilane by taking terephthalaldehyde as a bridging agent, and further reacting with DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide). The prepared biological resin coating is high in adhesive force, high in pencil hardness and good in corrosion resistance, solvent resistance and flame retardant effect.

The invention discloses a flame-retardant insulating powder coating for a new energy automobile and a preparation method of the flame-retardant insulating powder coating, and belongs to the technical field of coatings. The flame-retardant insulating powder coating for the new energy automobile is prepared from the following raw material components in parts by mass: 380 to 384 parts of epoxy resin, 56 to 58 parts of a toughening agent, 5 to 10 parts of modified flame-retardant filler, 100 to 101 parts of a composite curing agent, 5 parts of a flatting agent, 1 part of benzoin and 0.7 part of an accelerant, the toughening agent is obtained by carrying out a reaction on an isophorone diisocyanate tripolymer, 4-bromophenol and N-p-coumaroyl tyramine; the modified flame-retardant filler is obtained by firstly wrapping hexagonal boron nitride with polydopamine and then modifying with a silane coupling agent; the silane coupling agent is obtained by combining 4-benzonitrile oxygen butyl trimethoxy silane and a sulfydryl silane coupling agent; and the composite curing agent is obtained by combining 4, 4-diaminodiphenylmethane and amino-sulfydryl functional organic polysiloxane.

The invention relates to the technical field of coatings, and discloses a wear-resistant waterborne polyurethane finish paint and a preparation method thereof. The wear-resistant waterborne polyurethane finish paint comprises a component A and a component B in a mass ratio of (4-7): 1, the component A is prepared from the following components in parts by mass: 50 to 60 parts of waterborne polyurethane, 10 to 15 parts of hyperbranched polysiloxane, 2 to 3 parts of polyoxyethylene fatty acid, 0.8 to 1.2 parts of a de-foaming agent, 6 to 8 parts of color paste and 10 to 15 parts of water; and the component B comprises an isocyanate curing agent. The wear-resistant waterborne polyurethane finish paint prepared in the invention has excellent adhesion strength and wear resistance.

The invention discloses a low-temperature self-repairing polysiloxane material based on coordinate bonds and a preparation method and application thereof, and belongs to the field of novel materials.The low-temperature self-repairing polysiloxane material is prepared through the steps that amino of bis (3-aminopropyl)-terminated poly (dimethyl siloxane) and aldehyde group of an aldehyde group small molecule compound are subjected to a Schiff base condensation reaction, and a prepolymer is obtained; and adding metal ions into the prepolymer to carry out a coordination reaction to form a reversible metal coordination bond, and removing the solvent after the reaction is finished to obtain the low-temperature self-repairing polysiloxane material based on the coordination bond. The formed three-dimensional structure contains a large number of reversible metal coordination bonds, so that the rigidity and the mechanical strength of the material are enhanced, and meanwhile, the good self-repairing performance and the machinable recoverability of the material are ensured. The coordination bond-containing self-repairing polysiloxane material can be applied to the fields of adhesives, sealants, rapid self-repairing coatings, composite materials and the like.

The organosilicon-polyurethane foam encapsulating material is composed of a component A and a component B. The component A comprises sucrose initial polyether polyol, sorbitol initial polyether polyol, a water-containing alcohol amine foaming agent, a catalyst and a halogen-free flame retardant, and the component B comprises an NCO-terminated polysiloxane-polyurethane prepolymer, silicone oil and a diluent. Wherein the water-containing alcohol amine foaming agent comprises isopropyl alcohol di-sec-butyl alcohol amine, a mixture of isopropyl alcohol sec-butyl alcohol amine and water. The two-component encapsulating material is used for encapsulating a new energy battery module.

The invention belongs to the technical field of organic silicon damping materials, and particularly relates to a polyborosiloxane type damping additive for phenyl siloxane rubber as well as a preparation method and application of the polyborosiloxane type damping additive. The polyborosiloxane type damping additive for phenyl siloxane rubber is prepared from hydroxyl-terminated polysiloxane and a boron-containing aryl compound, and the hydroxyl ratio of the hydroxyl-terminated polysiloxane to the boron-containing aryl compound is 1: (0.2-3). From the perspective of molecular structure design, aryl groups are introduced into polyborosiloxane molecules, the obtained polyborosiloxane type damping additive has good compatibility with phenyl siloxane rubber, cannot be separated from the phenyl siloxane rubber, and can provide good damping performance for the phenyl siloxane rubber; the effective damping temperature range of the phenyl silicone rubber is greatly widened, and the requirement of the market for high-performance damping silicone rubber is met.

The invention discloses a process for preparing a polyester fiber fabric by regenerating polyester waste bottle flakes, belongs to the technical field of polyester fiber fabric processing, and aims to solve the technical problem that the moisture absorption and quick drying performance, friction resistance and pilling resistance of the polyester fiber fabric in the prior art need to be further improved. The method comprises the following steps: adding polyester waste bottle flakes into a pulverizer, pulverizing, sieving with a 60-mesh sieve to obtain polyester regenerated powder, and pretreating the polyester regenerated powder to obtain pretreated polyester powder; composite polyester is prepared from modified polysiloxane enhanced copolyester containing nylon 6 and polyvinyl alcohol blocks, and then the porous composite polyester fiber is prepared by taking polyvinyl alcohol as a pore forming agent, so that the moisture absorption and quick drying performance of the polyester fiber fabric is effectively improved, the wearing experience of the polyester fiber fabric is enhanced, and the service life of the polyester fiber fabric is prolonged. The wear-resistant and anti-pilling performance of the polyester fiber fabric is also improved.