452 results about "Zinc borate" patented technology

The invention discloses a high-temperature-resistant epoxy resin composite material and a preparation method thereof, and relates to the technical field of composite materials. The high-temperature-resistant epoxy resin composite material is prepared from the following raw materials in parts by weight: 70 to 80 parts of modified epoxy resin, 8 to 15 parts of high-temperature-resistant modifier, 15 to 30 parts of curing agent, 3 to 8 parts of nano reinforcing filler, 1 to 3 parts of coupling agent, 3 to 6 parts of carbon fiber, 2 to 5 parts of nano titanium dioxide, 5 to 10 parts of organic silicon rubber, 1 to 3 parts of conductive agent, 3 to 7 parts of flame retardant and 2 to 4 parts of zinc borate. The high-temperature-resistant epoxy resin composite material has outstanding advantages and strong thermal stability, and can bear high temperature; mechanical performance is excellent, and firmness and durability are achieved; the self-repairing capability is achieved, and the service cycle can be prolonged; the anti-permeability is good, and gas and liquid can be effectively blocked; the surface is smooth, the friction coefficient is low and the application prospect is wide.

Disclosed in the present invention are an ultralow-smoke-density cold-resistant halogen-free flame-retardant cable material and a preparation method therefor. The cable material is prepared from the following raw materials in parts by mass: 50 parts of a base resin, 45-80 parts of an inorganic flame retardant, 1-3 parts of a lubricant, 2-4 parts of a reactive smoke suppressant, 0.2-0.5 part of an antioxidant, 2-5 parts of zinc borate and 1-2 parts of a coupling agent, the base resin comprising an ethylene-vinyl acetate copolymer, a maleic anhydride grafted polymer and a metallocene linear polyethylene resin in a mass ratio of (25-35):(5-10):(10-20), and the inorganic flame retardant being a mixture of modified aluminum-magnesium hydrotalcite and modified magnesium hydroxide. The inorganic flame retardant used in the present invention has dual effects of flame retardance and smoke elimination, so that in cooperation with the reactive smoke suppressant, the cable material can reach an ultralow smoke density during combustion. In addition, none of the base resin, the inorganic flame retardant and the reactive smoke suppressant contains a halogen component, so that no halogen gas will be generated during combustion. The base resin has a reasonable proportion, so that the cable material can tolerate a low temperature of -40℃.

The invention relates to the technical field of cables, and provides a fireproof flame-retardant 10kV power cable and a preparation method thereof. The fire-resistant flame-retardant 10kV power cable comprises a conductor and a fire-resistant flame-retardant layer, the fireproof flame-retardant layer is prepared from the following raw materials in parts by weight: 35 to 45 parts of linear low-density polyethylene, 40 to 50 parts of ethylene-vinyl acetate copolymer, 25 to 30 parts of modified aluminum hydroxide, 5 to 8 parts of polyethylene grafted maleic anhydride, 10 to 12 parts of phosphate modified halloysite nanotube, 5 to 8 parts of ZIF-8 loaded zinc borate core-shell particles, 15 to 20 parts of magnesium hydroxide and 2 to 3 parts of silane coupling agent. 0.5 to 1 part of antioxidant, 0.5 to 1 part of calcium stearate and 1 to 1.5 parts of polyethylene wax. According to the cable prepared in the invention, the situation that a conductor is exposed and the fire resistance is lost due to cracking and falling under long-time high-temperature baking is avoided; the continuous effectiveness of the flame retardant at high temperature is improved.

The invention discloses a dry-process high-temperature-resistant lithium battery diaphragm and a preparation method thereof, and relates to the technical field of lithium battery diaphragms. The specific preparation method comprises the following steps: activating and cross-linking polypropylene, polyimide, a PP-b-PI block copolymer and a cross-linking agent BIBP under the protection of nitrogen to prepare a polypropylene-polyimide matrix; after melting, adding a pre-sintered ZrO2-coated Al2O3 core-shell filler, hydroxylated boron nitride and zinc borate, and carrying out double-stage screw extrusion, ultrasonic orientation, nitrogen annealing and cold roller quenching to obtain a mixed melt; carrying out warm stretching and hot air circulation heat treatment to prepare a hard elastic crystal base film; carrying out stretching, thermal relaxation and thermal shaping to obtain a microporous base membrane; after slitting, plasma activation is carried out, epoxy silane and tetraethyl orthosilicate / polybenzimidazole aerogel precursors are sprayed, and a nano closed-pore coating is formed through pre-curing and heat shrinkage curing; and finally eliminating static electricity and rolling to obtain a finished product. The lithium battery diaphragm prepared by the invention is excellent in high temperature resistance and low in thermal shrinkage rate.

The invention relates to the technical field of cables, and particularly discloses a high-performance halogen-free flame-retardant flexible power cable. The high-performance halogen-free flame-retardant flexible power cable comprises a core layer, an insulating layer, a flame-retardant layer, a shielding layer and a protective layer which are arranged in sequence, the flame-retardant layer is prepared from the following raw material components in parts by weight: 30 to 40 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of polyolefin elastomer, 8 to 10 parts of microencapsulated ammonium polyphosphate, 2.5 to 4.5 parts of pentaerythritol, 20 to 30 parts of inorganic flame retardant, 5 to 8 parts of expansible graphite, 2 to 3 parts of diatomite, 0.5 to 1.5 parts of nano kaolin, 2 to 3 parts of zinc borate, 0.1 to 0.5 part of antioxidant and 0.5 to 1.0 part of lubricant. The cable provided by the invention not only has good flame retardant property, but also has certain flexibility.

The invention relates to the technical field of cables, and provides a high-temperature-resistant flame-retardant power cable and a preparation method thereof. A high-temperature-resistant flame-retardant power cable comprises a conductor and a high-temperature-resistant flame-retardant outer layer wrapping the conductor. The high-temperature-resistant flame-retardant outer layer is prepared from the following raw materials in parts by weight: linear low-density polyethylene, an ethylene-vinyl acetate copolymer, ethylene propylene diene monomer, chopped polyimide fibers, nano-coated magnesium hydroxide, zinc borate, zinc stannate, polyethylene grafted maleic anhydride, an anti-aging agent, dicumyl peroxide, an antioxidant, polyethylene wax, calcium stearate and cerium dioxide. According to the cable prepared in the invention, the reliability of an existing high-temperature-resistant flame-retardant power cable under thermal cycle is improved, and the problem of local temperature resistance difference caused by agglomeration and high-temperature migration of nanoparticles in a polymer matrix is improved.

The invention relates to the technical field of flame-retardant materials, in particular to a halogen-free flame-retardant glass fiber modified polypropylene material and a preparation method thereof. The material comprises the following components in parts by mass: 60-80 parts of polypropylene, 15-30 parts of long glass fiber, 8-15 parts of a halogen-free intumescent flame retardant, 2-5 parts of a synergist, 3-8 parts of a compatilizer, 2-3 parts of an interface modifier, 2-4 parts of a dynamic cross-linking agent and 1-3 parts of a functional additive. According to the halogen-free flame-retardant glass fiber modified polypropylene material and the preparation method thereof, an intumescent halogen-free flame retardant melamine polyphosphate is compounded with organic montmorillonite, nano zinc borate and MXene, so that the flame-retardant efficiency is improved through a synergistic effect, and the release of smoke and toxic gas in a combustion process is inhibited; the halogen-free flame-retardant glass fiber modified polypropylene material has a good flame-retardant effect by introducing the halogen-free flame-retardant glass fiber, and maleic anhydride grafted polypropylene is introduced as a compatilizer to modify the surface of the long glass fiber and enhance the interface bonding force between the long glass fiber and a matrix.

The invention discloses a coating type high-molecular flame-retardant material. The composite material is prepared from the following components: organic silicon modified epoxy resin, a bio-based castor oil derivative, hydroxyapatite, carbon nanofibers, expanded graphite, ammonium polyphosphate, zinc borate, nano silicon dioxide, molybdenum oxide, microencapsulated red phosphorus, magnesium hydroxide, melamine cyanurate, aluminum diethylphosphinate, pentaerythritol, trihydroxymethyl phosphine oxide and a silane coupling agent. The coating is prepared from a titanate coupling agent, stearic acid, polyethylene glycol, 2, 6-butylated hydroxytoluene, triphenyl phosphite, 2, 4-dihydroxybenzophenone, sebacic diester, polytetrafluoroethylene micro powder, a modified polydimethylsiloxane flatting agent, organic montmorillonite, a polyether modified silicon defoaming agent and a solvent. The invention has the beneficial effects of high flame retardant efficiency, environmental friendliness, excellent comprehensive performance and excellent processability.

The invention relates to the field of artificial leather, and discloses a high-dispersion halogen-free flame retardant polyether polyol composite material and a preparation method thereof, and the high-dispersion halogen-free flame retardant polyether polyol composite material comprises the following components by mass: 60-75 parts of a polyether polyol matrix; 20 to 30 parts of a core-shell synergistic flame retardant; 3 to 5 parts of a hyperbranched polysiloxane dispersant; 2-5 parts of a nano zinc borate synergist; 0.5 to 1 part of an anti-dripping agent; the preparation method comprises the following steps: preparing a phosphorus-nitrogen core-shell flame retardant; premixing with polyether polyol, and performing dynamic condensation to form a bonding interface; carrying out ultrasonic-shearing synergistic dispersion on the nano material; and finally, carrying out underwater pelletizing to obtain the high-dispersion halogen-free composite material. According to the invention, through cooperation of core-shell flame-retardant structure design and a dynamic process, and combination of hyperbranched dispersant multi-point anchoring and ultrasonic-shear energy field dispersion technologies, efficient dispersion of a flame retardant and a nano material is realized; the interfacial condensation reaction is accurately controlled through a low-oxygen environment, and the flame retardant efficiency and thermal stability of the material are improved.

The invention provides a thermal response self-ceramization fireproof coating and a preparation method thereof. The thermal response self-ceramization fireproof coating is prepared from the following raw materials in parts by mass: 3 to 10 parts of acrylic monomer, 3 to 10 parts of organic sulfonate, 1 to 4 parts of silane coupling agent, 0.5 to 3 parts of silicate ester, 4 to 6 parts of ceramic precursor, 3 to 6 parts of fluxing agent and 0.05 to 0.4 part of initiator. The fluxing agent comprises a component A and a component B, the component A is one of boric oxide, zinc borate or low-melting-point glass powder, and the component B is one of phosphorus pentoxide and ammonium polyphosphate. The silane coupling agent can be copolymerized with an acrylic monomer to construct a C-C main chain, the C-C main chain and silicate ester are subjected to hydrolytic condensation to form a Si-O-Si three-dimensional network, a chemical cross-linked skeleton is formed, and the chemical cross-linked skeleton can generate silicon dioxide at high temperature to participate in a ceramization reaction; the ceramic precursor and silicate ester can form a strong physical cross-linking effect, so that the fireproof coating with a chemical and physical double-cross-linked network can be formed, and the fireproof coating has excellent mechanical property and machinability at normal temperature.

The invention relates to the technical field of polyester, in particular to a flame-retardant and antibacterial dual-function fiber and a preparation method thereof. The flame-retardant antibacterial fiber overcomes the defects that existing fibers are poor in flame retardance and antibacterial property. According to the invention, PET resin, a composite modified auxiliary agent master batch and a composite flexibilizer are used as raw materials, and the bifunctional fiber is prepared through melting and spinning; wherein the composite modified additive master batch is prepared from the following raw materials: PET (Polyethylene Terephthalate) resin, aluminum diethylphosphinate, modified halloysite nanotubes, modified zinc oxide nanowires and zinc borate; the modified halloysite nanotube is prepared from the following raw materials: a halloysite nanotube, KH560 and phosphoric acid; the modified zinc oxide nanowire is prepared from the following raw materials: zinc nitrate hexahydrate, hexamethylenetetramine and sodium hypophosphite. By controlling the dosage of each component and processing technological parameters, the finally prepared difunctional fiber has good flame retardance and good antibacterial property, and is suitable for manufacturing curtains.

The invention relates to the technical field of cable preparation, in particular to a low-temperature-resistant flame-retardant anti-ultraviolet PVC cable sheath composition, a preparation method thereof and a cable. According to the composition, polyvinyl chloride is used as a matrix, chlorinated polyethylene elastomer, an environment-friendly plasticizer and a calcium-zinc stabilizer are used as auxiliary materials, nanoscale magnesium hydroxide, zinc stannate, passivated zinc borate, sodium tungstate and modified montmorillonite are introduced to form a multi-component synergistic flame-retardant system, and the flame retardance, the low smoke property and the thermal stability of the material are remarkably improved. Meanwhile, through the cooperation of the ultraviolet light absorber and the antioxidant, the weather resistance of the material is enhanced, and the service life of the material is prolonged. The prepared cable sheath material has excellent low-temperature flexibility, flame retardance and smoke suppression performance and ultraviolet aging resistance, and is suitable for high-performance cables in severe environments.

The invention relates to the technical field of cables, and provides a flame-retardant medium-voltage power cable and a preparation method thereof. The flame-retardant medium-voltage power cable comprises a conductor and a flame-retardant layer, the flame-retardant layer is prepared from the following raw materials in parts by weight: 65 to 75 parts of ethylene-vinyl acetate copolymer, 25 to 35 parts of polyolefin elastomer, 10 to 12 parts of maleic anhydride grafted polyethylene, 10 to 14 parts of phosphorus-nitrogen modified wollastonite, 8 to 10 parts of polydopamine / silane double-layer modified magnesium hydroxide, 3 to 5 parts of nano zinc borate, 0.6 to 1 part of antioxidant and 0.5 to 0.7 part of calcium stearate. According to the flame-retardant medium-voltage power cable prepared in the invention, the flame-retardant performance is improved, and the flame-retardant stability of the cable is also improved.

The environment-friendly cable ethylene-propylene insulation material comprises the following raw materials: ethylene propylene diene monomer, an elastomer, a reinforcing agent, a flame retardant, a vulcanizing activator, a filler, a plasticizer, an anti-aging agent, a vulcanizing agent and a silane coupling agent. 50-70 parts by mass of ethylene propylene diene monomer rubber; the elastomer is a POE (polyolefin elastomer) of 30-50 parts; the flame retardant is prepared from 30 to 50 parts of nano magnesium hydroxide, 5 to 10 parts of microencapsulated red phosphorus and 3 to 5 parts of zinc borate; and the plasticizer is paraffin oil. According to the ethylene-propylene insulating material, a halogen-free flame-retardant system is combined with an interface modification technology, so that the defects of poor mechanical property and high material toxicity of a traditional material are overcome. The oxygen index is greater than or equal to 38%, the tensile strength is greater than or equal to 10Mpa, and the material is suitable for high-risk mine environments.

The invention relates to the technical field of thermal insulation materials, in particular to an aerogel felt and a preparation method thereof.The aerogel felt is composed of a composite fiber base material and multi-component aerogel loaded in the composite fiber base material, the composite fiber base material comprises 65%-75% of alkali-free glass fibers, 15%-20% of modified polyimide fibers, 4%-6% of nanoscale carbon fibers and 8%-12% of basalt fibers, and the multi-component aerogel is loaded in the composite fiber base material. According to the multi-component aerogel, 78%-82% of tetraethoxysilane, 12%-14% of methyltrimethoxysilane, 4%-6% of dimethyldimethoxysilane and 2%-4% of vinyltrimethoxysilane serve as precursors, 1.5%-2.5% of aluminum oxide, 0.8%-1.5% of titanium oxide nanoparticles and 3%-4% of zinc borate are added, a multi-stage reinforced structure is formed, the mechanical property and flexibility of the aerogel felt are remarkably improved, the tensile strength reaches 400 kPa or above, and the tensile strength reaches 400 kPa or above. The flexibility is excellent.

The invention relates to the technical field of cables, and provides a 10kV flame-retardant wire cable and a preparation method thereof. The 10kV flame-retardant wire cable comprises a bunched wire core and an outer sheath layer, the outer sheath layer is prepared from the following raw materials in parts by weight: 40 to 50 parts of linear low-density polyethylene, 30 to 40 parts of ethylene-vinyl acetate copolymer, 18 to 20 parts of microencapsulated ammonium polyphosphate, 6 to 8 parts of organic modified nano montmorillonite, 4 to 6 parts of zinc borate, 1 to 2 parts of silane coupling agent, 0.5 to 1 part of antioxidant and 0.4 to 0.6 part of calcium stearate. According to the 10 kV flame-retardant electric wire and cable prepared in the invention, the flame-retardant grade of the flame-retardant electric wire and cable is improved, but the problem that the elongation at break of the material is reduced due to excessive addition of the inorganic flame retardant is solved; and the problems of environmental adaptability and mechanical performance of sheath cracking easily caused by insufficient bending radius of the cable are improved.

The invention provides a high-sealing-performance flame-retardant composite film and a preparation method thereof, and belongs to the technical field of composite film material preparation, the high-sealing-performance flame-retardant composite film comprises an outer layer, a middle layer, a transition layer and an inner sealing layer which are sequentially stacked, the material of the middle layer comprises a polypropylene matrix, modified aluminum hydroxide and zinc borate, the material of the transition layer comprises epoxy resin and nano silicon carbide, and the material of the inner sealing layer comprises ethylene-vinyl acetate copolymer and maleic anhydride grafted polyethylene; the flame-retardant PET also contains 12 to 20 weight percent of phosphorus-nitrogen synergistic flame retardant; the outer layer and the middle layer are combined in a physical entanglement mode, and the transition layer and the inner sealing layer are combined in a chemical crosslinking mode. The high-sealing-performance flame-retardant composite film provided by the invention has excellent flame-retardant performance and sealing performance, and is suitable for packaging of new energy automobile batteries and high-end electronic equipment.

The invention provides a heat insulation composite material which is prepared from the following raw materials in parts by weight: 100 parts of waterborne polyurethane, 10-20 parts of ammonium polyphosphate, 3-8 parts of zinc stannate, 5-15 parts of zinc borate, 5-10 parts of silicon carbide nanowires, 10-20 parts of silicon dioxide aerogel microspheres, 3-5 parts of nano montmorillonite and 2-5 parts of a toughening agent. According to the heat-insulating composite material disclosed by the invention, the balance of environmental friendliness, ultrahigh-temperature stability, low heat conductivity and flexibility is realized through the synergistic effect of multiple components.

The invention relates to a composite powder explosion suppressant for suppressing aluminum hydride explosion and a preparation method of the composite powder explosion suppressant, belongs to the technical field of explosion suppressants, and solves the problems of single action mechanism, high required explosion suppression concentration, low efficiency and the like of a traditional explosion suppressant. According to the solution, the composite powder explosion suppressant for suppressing aluminum hydride explosion is prepared through raw material pretreatment, powder mixing and drying in sequence, and the composite powder explosion suppressant is prepared from the following components in parts by mass: 10.2 to 30.2 parts of melamine cyanurate, 20.4 to 40.6 parts of monopotassium phosphate, 15.2 to 25.2 parts of potassium bicarbonate, 8.4 to 13.2 parts of aluminum hydroxide, 6.8 to 11.1 parts of zinc borate, 5.0 to 9.0 parts of fumed silica and 2.0 to 5.3 parts of calcium silicate. The explosion suppressant can act on different combustion areas and combustion stages in the aluminum hydride explosion process, the physical and chemical explosion suppression effects of all the components of the explosion suppressant are fully exerted, and meanwhile, efficient explosion suppression of aluminum hydride explosion can be achieved through the synergistic effect of all the components.

The invention relates to the technical field of green building materials, in particular to phase-change energy-storage thermal insulation mortar and a preparation method of the phase-change energy-storage thermal insulation mortar. 25 to 40 parts of methyl palmitate; 120 to 180 parts of hydrophobic perlite; 8 to 15 parts of expanded graphite; 3-6 parts of phosphorus sheet-shaped aluminum nitride; 180 to 250 parts of sulphoaluminate cement; 60 to 100 parts of volcanic rock micro powder; 0.3 to 0.8 part of hydroxypropyl methyl cellulose; 0.6 to 1.2 parts of a polycarboxylic acid water reducing agent; 2 to 4 parts of nano aluminum oxide; 0.8 to 1.5 parts of propyl gallate; and 1-2 parts of zinc borate. Through the proportion design of the antioxidant flame-retardant microcapsules and the lightweight composite aggregate, the problems of poor thermal conductivity and insufficient durability of a traditional phase change material are solved. Through phase change material loading, interface modification and multi-component cooperative regulation, the thermal insulation performance, energy storage efficiency and structural stability are remarkably improved, and the material is suitable for the fields of building energy saving, intelligent temperature control and the like.

The invention relates to the technical field of ceramic glaze preparation, in particular to a formula of ceramic glaze, which comprises the following components in percentage by mass: 25-30% of modified zircon sand; 20 to 25% of spodumene; 15 to 20 percent of nano aluminum oxide; 10 to 15% of petalite; 8-12% of kaolin; 3-5% of a silver-loaded zeolite antibacterial agent; 5-8% of boron carbide-silicon nitride composite powder; 2-3% of zinc borate; and 10-15% of a composite frit. A three-dimensional grid structure (the Vickers hardness is greater than or equal to 1800 HV) is formed through boron carbide-silicon nitride composite powder, and the wear resistance is improved by 40% in combination with a potassium feldspar modification technology; the silver-loaded zeolite realizes slow release of Ag, the antibacterial rate is greater than 99.9%, a gradient sintering process enables a glaze layer to form a gradient density structure, the porosity of a surface layer is less than 0.5%, the porosity of a bottom layer is 3-5%, the oxidation defect of the copper red glaze is avoided through CO / N atmosphere control, and the color development uniformity delta E is less than or equal to 0.8; the firing temperature is reduced by 150 DEG C, and the energy consumption is reduced.

The invention discloses a lightweight heat-insulating fireproof material and a preparation method thereof, and relates to the technical field of fireproof materials. The light heat-insulation fireproof material provided by the invention is prepared from the following components in parts by weight: 15 to 25 parts of nano aluminum oxide fiber, 10 to 20 parts of calcium silicate powder, 30 to 40 parts of modified phosphorus-nitrogen flame retardant, 5 to 8 parts of zinc borate, 5 to 10 parts of epoxy resin, 8 to 15 parts of silicon dioxide aerogel, 3 to 5 parts of expanded graphite, 1 to 2 parts of coupling agent, 0.5 to 1.5 parts of foaming agent and 0.1 to 0.5 part of dispersing agent. The fireproof material prepared by the invention simultaneously meets the requirements of high strength, ultralow heat conductivity coefficient and high fire endurance.

The invention discloses a high-flame-retardant organic silicon foam sheet and a preparation method thereof, and belongs to the technical field of organic silicon. The foam sheet is prepared from polydimethylsiloxane, methyltriethoxysilane, nano-modified zinc borate, an intumescent flame retardant, pretreated graphene oxide, polyethylene glycol, azodiisobutyronitrile and a catalyst. The preparation method comprises the following steps: mixing polydimethylsiloxane with methyltriethoxysilane, sequentially adding a modified flame retardant system, pretreated graphene oxide and an auxiliary agent, heating and uniformly stirring, and then adding a foaming agent and a catalyst; according to the modified flame retardant system, a glass layer and an expanded carbon layer are formed through the synergistic effect of nano-modified zinc borate and an intumescent flame retardant, and the flame retardance and dispersity are enhanced through pretreated graphene oxide. The tensile strength of the product reaches 0.52-0.71 MPa, the compression strength reaches 0.60-0.65 MPa, the oxygen index is 38-40, the vertical combustion reaches V-0, the foam expansion is 15-17, and the product has efficient flame retardance, excellent mechanical properties and light weight.

The invention relates to the field of photovoltaic cells, and particularly discloses low-temperature cured copper paste and a preparation method and application thereof. The copper paste is prepared from the following raw material components in parts by weight: 85 to 95 parts of copper powder, 2 to 8 parts of a carrier, 2 to 5 parts of a solvent, 0.1 to 3 parts of a curing agent, 0.01 to 0.05 part of an accelerant, 0.5 to 1.5 parts of zinc borate, 0.1 to 0.5 part of nickel nitrate, 0.05 to 0.15 part of ethylenediamine, 0.05 to 0.15 part of diammonium hydrogen phosphate and 0.1 to 0.3 part of citric acid, wherein the purity of the copper powder is 99%-99.9%. The preparation method of the low-temperature cured copper paste comprises the following steps: respectively adding the curing agent, the accelerant, the solvent, the zinc borate, the nickel nitrate, the ethylenediamine, the diammonium hydrogen phosphate, the citric acid and other raw materials into the carrier, uniformly stirring and mixing, then adding the copper powder, mixing and stirring, grinding, and stirring to obtain the low-temperature cured copper paste.

The invention discloses a high-strength polymer composite material and a preparation method thereof. The composite material is prepared from the following components in parts by mass: 70 to 83 parts of aliphatic nylon resin, 20 to 27 parts of fiber reinforced filler, 5 to 9 parts of red phosphorus, 2.5 to 5 parts of zinc borate, 4 to 6 parts of modified graphene and 2.5 to 6 parts of hydroxypropyl-beta-cyclodextrin. According to the composite material, the components are compounded, so that the mechanical property of the composite material is further improved on the basis of improving the flame retardance, and the technical problem that the mechanical property of the composite material is reduced due to the addition of a red phosphorus flame retardant is solved.

The invention provides a powder coating with good high-temperature resistance, a high-temperature-resistant coating and a preparation method, and belongs to the field of high-temperature-resistant coatings. The powder coating is composed of a prime coating, a middle coating and a surface coating, the prime paint is prepared from the following chemical components: 20 to 40 parts of organic silicon-epoxy-polyarylether sulfone ternary hybrid resin, 5 to 15 parts of boron nitride, 2 to 6 parts of KH-550 modified silicon carbide and 3 to 8 parts of Al2O3 coated SiO2 core-shell particles; the middle-layer coating is prepared from the following chemical components: 10 to 20 parts of polyimide-siloxane hyperbranched resin, 3 to 6 parts of Zr-Ti-V composite oxide and 1 to 4 parts of nano kaolinite / talcum powder compound; the surface layer coating is prepared from the following chemical components: 10 to 20 parts of organic silicon-epoxy-polyarylether sulfone ternary hybrid resin, 5 to 15 parts of silicon dioxide aerogel and 1 to 3 parts of ammonium polyphosphate / zinc borate compound. Therefore, the high-temperature resistance, the corrosion resistance and the mechanical property of the high-temperature-resistant coating are improved at the same time.

The invention relates to a flame-retardant composition, a flame-retardant layer and a new energy automobile power battery comprising the flame-retardant layer. The flame-retardant composition comprises the following components in percentage by weight: 50-68% of matrix resin which is a mixture of polycarbonate and polyphenyl ether in a weight ratio of (1: 1)-(3: 1); the composite flame retardant comprises a phosphate flame retardant, a cyanamide flame retardant and an inorganic flame retardant according to the weight ratio of 1: (0.5-0.8): (2-2.5), and the inorganic flame retardant is selected from one or more of aluminum hydroxide, antimony trioxide, magnesium hydroxide and zinc borate; 10-20% by weight of a thermally conductive agent; 5 to 10 wt% of a silane coupling agent; and 1-3 wt% of a lubricant. A flame-retardant layer formed by the flame-retardant composition is arranged between a power battery module and an aluminum shell of the new energy automobile power battery, has good flame retardance, heat conduction and mechanical properties, and can meet the use requirements of the new energy automobile power battery.

The invention relates to the technical field of thermal insulation materials, in particular to a high-temperature-resistant aerogel composite material and a preparation method thereof. The high-temperature-resistant aerogel composite material is prepared from the following components in parts by weight: 15 to 35 parts of reinforced fiber matrix, 43 to 65 parts of silicon-aluminum-zirconium ternary aerogel network, 3 to 12 parts of functional nano filler, 2 to 8 parts of zinc borate flame-retardant component and 0.5 to 2 parts of surface hydrophobic modified layer. Wherein the reinforced fiber matrix is composed of aluminum silicate fibers, silicon carbide fibers and aluminum oxide nanofibers; the molar ratio of silicon to aluminum to zirconium in the silicon-aluminum-zirconium ternary aerogel network is 5: 2: 1; the functional nanofiller comprises aluminum oxide nanoparticles, titanium oxide nanoparticles, carbon nanotubes and boron nitride nanosheets; the zinc borate flame-retardant component is zinc borate; the surface hydrophobic modification layer comprises an inner methyltrimethoxysilane modification layer and an outer hexamethyldisilazane modification layer. The high temperature resistance and thermal shock resistance of the material are remarkably improved, a low-energy-consumption preparation process is adopted, and the material has excellent comprehensive performance.

The present invention relates to the technical field of cable preparation, and in particular to a low-temperature-resistant, flame-retardant, and UV-resistant PVC cable sheath composition, a preparation method thereof, and a cable. The composition is based on polyvinyl chloride, supplemented with a chlorinated polyethylene elastomer, an environmentally friendly plasticizer, and a calcium-zinc stabilizer, and introduces nano-magnesium hydroxide, zinc stannate, passivated zinc borate, sodium tungstate, and modified montmorillonite to form a multi-component synergistic flame retardant system, which significantly improves the flame retardancy, low smoke properties, and thermal stability of the material. At the same time, through the synergy of ultraviolet absorbers and antioxidants, the weather resistance and service life of the material are enhanced. The prepared cable sheath material has excellent low-temperature flexibility, flame retardant and smoke suppression properties, and ultraviolet aging resistance, and is suitable for high-performance cable applications in harsh environments.

The invention discloses a thermoplastic whole-core flame-retardant conveying belt and a preparation method thereof. The thermoplastic whole-core flame-retardant conveying belt is composed of a core layer, a flame-retardant covering layer, a wear-resistant layer and a bonding layer. The core layer adopts three layers of aramid fiber / polyester mixed fabric (the radial linear density is greater than or equal to 5000N / cm) and is impregnated with a halogen-free flame-retardant polyurethane sizing material (containing 15phr of APP and 10phr of zinc borate); the flame-retardant covering layer is an intumescent flame-retardant system formed by adding 5 phr of microencapsulated red phosphorus, 20 phr of magnesium hydroxide and 8 phr of melamine cyanurate into an EVA (Ethylene Vinyl Acetate)-based compound; the surface wear-resistant layer is made of ultra-high molecular weight polyethylene (Mw is larger than or equal to 3 * 10 < 6 >, and the thickness ranges from 0.8 The product has the advantages of high strength, light weight, flame retardance and high joint strength retention rate, and is suitable for heavy-load high-temperature scenes such as mines and metallurgy.