85 results about "Trimethylsilane" patented technology

The invention provides a low-temperature sodium-ion battery containing a modified negative electrode as well as a preparation method and application of the low-temperature sodium-ion battery. The low-temperature sodium-ion battery comprises a positive electrode, a negative electrode and an electrolyte, the negative electrode comprises negative electrode slurry, and the negative electrode slurry comprises an active substance, conductive carbon, sodium carboxymethyl cellulose and butadiene styrene rubber; the active substance comprises modified hard carbon; the modified hard carbon is prepared by oscillating and mixing hard carbon with a single-walled carbon nanotube, graphite carbon and soft carbon to obtain physical coating, further oscillating and mixing with the doped modified precursor powder, and calcining at high temperature to complete element doping and chemical coating; and the electrolyte comprises an additive selected from trimethylsilyl nicotinate, methyl 4-hydroxy-3-methoxycinnamate and the like. On one hand, the adhesive force of the negative electrode slurry on the current collector is improved, on the other hand, the solvent formula is optimized, the desolvation ability of sodium ions in the electrolyte is improved, the viscosity is reduced, and the additive is added to modify an electrode surface interface film, so that the charge-discharge performance of the battery at low temperature is improved.

The application relates to the technical field of cosmetics, in particular to a high-concealment makeup-maintaining air cushion and a preparation method thereof. A film forming agent in the high-concealment makeup-maintaining air cushion comprises the following: trimethylsiloxy silicate 5-7 parts, isododecane 0.3-0.7 parts, and acrylic acid (ester) / polymethyltrimethicone methacrylate copolymer 2-3 parts. A colorant comprises the following raw materials in parts by weight: titanium dioxide 5-7 parts, silica 0.8-1.2 parts, mica powder 5-7 parts, CI 77492 0.4-0.8 parts, aluminum hydroxide 0.8-1.2 parts, CI 77491 0.4-0.6 parts, triethoxyl octyl silane 0.8-1.2 parts, and CI 77499 0.3-0.5 parts. The particle size of the titanium dioxide at least comprises any two of 4 nm, 30-50 nm and 200-260 nm. The air cushion has the advantages of prolonging the makeup-maintaining time of the air cushion and improving the concealment effect.

The invention relates to a low-expansion moisture-resistant electronic component packaging resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The resin adhesive comprises the following components: modified resin, phenyl methyl organic silicon resin, epoxy vinyl resin, a dynamic functional curing agent, a microencapsulated dicyandiamide curing agent, perfluorooctyltriethoxysilane, functional filler and the like; the modified resin is obtained by modifying hydrogenated bisphenol A epoxy resin with hydrogen-terminated polydimethylsiloxane and trimethylsiloxy silicate ester, adding a silane coupling agent and mixing; the dynamic function curing agent is obtained by reacting hexamethylenediamine and intermediate powder obtained by reacting 2, 3-dihydroxy benzaldehyde with pinacol borane; the functional filler comprises silicon dioxide and boron nitride which are subjected to surface treatment by a silane coupling agent. The low-expansion and high-moisture-resistance electronic component packaging resin adhesive is prepared from the components according to a specific ratio and a specific method, the components have a synergistic effect and play advantages, and the packaging reliability and the service life of an electronic component are guaranteed.

The present invention provides a method for selecting an inorganic filler, which can select an inorganic filler suitable for use in combination with a silane coupling agent using a functional group present on the filler surface as an index, and a method for producing a surface-treated inorganic filler and a method for producing a composite material using the selected inorganic filler. [Solution] The method for selecting an inorganic filler is a method for selecting an inorganic filler having a hydroxyl group, and includes the steps of: reacting the inorganic filler having a hydroxyl group with a trimethylsilylating agent to obtain an inorganic filler having a trimethylsilyl group; measuring the carbon concentration in the inorganic filler having a trimethylsilyl group by elemental analysis and calculating the concentration A of trimethylsilylated hydroxyl groups in the inorganic filler having a trimethylsilyl group based on the carbon concentration; and selecting an inorganic filler having a hydroxyl group based on the hydroxyl group concentration A.

The invention discloses a preparation method and application of a silicon-based functionalized fluorenyl polysubstituted acetylene copolymer and a gas separation membrane thereof. Belongs to the technical field of polymer material and gas separation. The invention provides a new thought for preparation of a high-permeability gas separation membrane material. The preparation method comprises the following steps: carrying out copolymerization on 1-phenyl-2-(7-trimethylsilyl-9, 9-bis (trimethylsilyl-fluorene-2-yl) acetylene and 1-phenyl-2-(7-trimethylsilyl-9, 9-dimethyl-fluorene-2-yl) acetylene under the catalysis of TaCl5-n-Bu4Sn, so as to prepare a copolymer with high molecular weight; the preparation method comprises the following steps of: carrying out film casting on a solution of the nano-silver oxide, and then carrying out desiliconization treatment by using normal hexane / trifluoroacetic acid to obtain a gas separation membrane with the thickness of 100-220 microns, the specific surface area of 298-492 m / g and the total pore volume of 0.134-0.299 cm / g. The prepared separation membrane has the advantages that the COpermeability is up to 36,900 Barrer, the Opermeability is 19,800 Barrer, the thermal decomposition temperature exceeds 420 DEG C, the separation membrane can be used for separating gases such as COO, ON and the like, the preparation process is simple and convenient, and the industrial potential is realized.

A method of controlling stress variation in a layer including silicon oxycarbide formed using a capacitively coupled plasma enhanced chemical vapour deposition system. The method includes providing a chamber comprising a platen for supporting a substrate, placing a substrate, upon which a layer comprising silicon oxycarbide is formable, upon the platen, introducing a gas comprising oxygen into the chamber, introducing trimethylsilane gas into the chamber, generating a plasma within the chamber, maintaining a temperature at which deposition takes place to less than 275° C., maintaining a pressure within the chamber in the range 1.5-3 Torr, and depositing the layer upon the substrate with a deposition rate >1.5 μm / minute.

The present invention relates to the technical field of carbon nanotube modification, specifically a flame-retardant carbon nanotube conductive material and a preparation process thereof. The method comprises the following steps: S1: reacting chlorinated carbon nanotubes with 4-aminobenzophenone and DOPO in sequence to obtain DOPO-carbon nanotubes; S2: reacting chain polyphosphazenes with (1-hydroxyallyl)trimethylsilane and oxetane-3-thiol in sequence to obtain oxacyclic-chain polyphosphazenes; and S3: mixing DOPO-carbon nanotubes, oxacyclic-chain polyphosphazenes, and pyrrole to prepare the flame-retardant carbon nanotube conductive material.

The application discloses a trimethylsilane purification system containing dichlorosilane impurities, comprising a reaction rectifying tower and a purification rectifying tower, and discloses a trimethylsilane purification method containing dichlorosilane impurities. Trimethylsilane gas containing dichlorosilane impurities enters the reaction rectifying tower, and the trimethylsilane gas containing dichlorosilane impurities enters a reaction section to react. Dichlorosilane impurities react to generate silane gas and material containing tetrachlorosilane impurities. The silane gas is discharged from a tower top exhaust port of the reaction rectifying tower, and the material containing tetrachlorosilane impurities is discharged from a tower bottom discharge port of the reaction rectifying tower and enters the purification rectifying tower. The high-purity trimethylsilane is collected in a tower top collecting port through rectification in the purification rectifying tower. The dichlorosilane impurities in the trimethylsilane can be effectively removed through the method disclosed by the application, high-purity trimethylsilane with a purity of more than 99.99% is obtained, the yield is greater than 85%, and the process is simple and low in cost.

The present application relates to the technical field of foundation products, in particular to a foundation product with a two-phase film-forming system and a preparation method thereof, which is prepared from the following raw materials in terms of mass percentage: phase A: 0.1-5% of an organic silicon surfactant, 2-35% of a colorant, 0.02-20% of a silane film-forming agent, 0.01-55% of a conditioning agent, and 0.02-5% of a silicon-modified clay; phase B: 0.001-1% of a plant-derived film-forming agent, 1-20% of a polyhydric alcohol humectant, 0.1-2% of an inorganic salt, 0.1-2% of a preservative, and deionized water to make up the rest; the silane film-forming agent at least includes trimethylsiloxysilicate and polymethylsilsesquioxane; and the plant-derived film-forming agent at least includes a too-kui agave leaf extract. The foundation product with the two-phase film-forming system has good water resistance, skin adhesion, and durability, and the product has finer powder and better skin adhesion, thus better meeting the use requirements of consumers.

The invention relates to the field of batteries, and particularly discloses a reversed-phase micro-micelle electrolyte system for an aqueous battery as well as a preparation method and application of the reversed-phase micro-micelle electrolyte system. The electrolyte system is composed of tris (trimethylsilane) phosphate, isopropanol, metal salt and water, and a reverse micelle structure with the average hydration size of 1-2 microns is formed through molecular self-assembly among the components. The unique structure limits water molecules in micelles and near an electrode interface, and cooperates with a firm SiO2-P2O5 inorganic interface layer generated on the surface of an electrode in situ to jointly inhibit side reactions such as decomposition of water, so that an electrochemical stability window of an electrolyte system at-20-60 DEG C is 5.0-6.0 V. When the composite material is applied to a water-based zinc ion battery, the super-long cycle life under high voltage and wide temperature range can be realized at the same time, and a new scheme is provided for developing a water-based energy storage device with high performance and high safety.

The present disclosure relates generally to the field of synthetic organic chemistry. More specifically, the disclosure is directed to a continuous flow process for synthesis of azides from alcohols and peroxides, wherein the process comprises azidation with trimethylsilyl azide and a catalyst Amberlyst-15. It is a non-hazardous, mild and controlled reaction giving good yields of azides. The azides can be further employed for synthesis of medicinally and industrially useful chemicals.

The application relates to the technical field of sodium ion batteries, in particular to an electrolyte for a sodium ion battery and a sodium ion battery thereof. The electrolyte comprises organic solvents, sodium salts and additives in percentage by weight. The additives comprise malonic acid compounds, nitrile compounds and tris(trimethylsilyl) phosphate. The additives of the electrolyte comprise macromolecular malonic acid compounds, which can effectively react with alkaline substances on the surface of a positive electrode material, form a film on the positive electrode, slow down or prevent the decomposition of the electrolyte solvent by the alkaline substances; meanwhile, the tris(trimethylsilyl) phosphate and the nitrile compounds in the electrolyte can effectively inhibit the oxidation reaction of Fe and Ni in the positive electrode and prevent the reduction of Fe and Ni in the negative electrode; the above-mentioned joint action can effectively improve the cycle life of the sodium ion battery.

The invention discloses a multilayer polycyclic aromatic hydrocarbon organic membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: cleaning and drying a polyacrylonitrile substrate; dropwise adding a poly [1-(trimethylsilyl)-1-propyne] solution on the polyacrylonitrile substrate, and carrying out spin coating to form a uniform supporting layer; the preparation method comprises the following steps: preparing pre-prepared hexa (tripyridine) hexaphenylbenzene polycyclic aromatic hydrocarbon into a hexa (tripyridine) hexaphenylbenzene polycyclic aromatic hydrocarbon monomolecular layer compressed film by adopting a Langeron film preparation instrument, and transferring the monomolecular layer compressed film to the surface of a polyacrylonitrile substrate spin-coated with a poly [1-(trimethylsilyl)-1-propyne] layer; the multi-layer polycyclic aromatic hydrocarbon organic membrane is obtained by repeating the monomolecular layer compression and horizontal contact transfer process, the efficient size exclusion effect is achieved, and the method has the advantages of high permeability, high selectivity, rapidness and low-cost preparation.

This invention discloses a sodium-ion battery electrolyte, belonging to the field of sodium-ion battery technology, comprising an organic solvent, a sodium salt, and additives; the organic solvent includes ethylene carbonate, propylene carbonate, methyl ethyl carbonate, and ethyl acetate; the sodium salt includes sodium hexafluorophosphate and sodium difluorosulfonylimide; the additives include fluoroethylene carbonate, vinylene sulfate, sodium difluorophosphate, sodium difluorooxalate borate, and tris(trimethylsilane)phosphate. The sodium-ion battery electrolyte of this invention, through precise adjustment of the solvent and sodium salt ratio, maintains high conductivity at extremely low temperatures, significantly raising the lower limit operating temperature of the battery to -70°C. Simultaneously, through the synergistic effect of the sodium salt and additives, a high-temperature resistant SEI film rich in inorganic components is formed, reducing side reactions at high temperatures and raising the upper limit operating temperature of the battery to 85°C, achieving a wide temperature range application of the battery from -70°C to 85°C.

The application discloses a kind of anti-inflating inner tube rubber compositions and preparation method thereof, belong to rubber composition preparation technical field.The composition is composed of the following components: butyl rubber, modified ethylene-propylene-diene rubber, polyester nanofiber, soft carbon black, paraffin oil, silane coupling agent, activator, petroleum resin, antioxidant, vulcanizing agent, accelerator;The silane coupling agent is the mixture of silane coupling agent Si-69, gamma-(methacryloyloxy) propyl trimethyl silane and N-(beta-aminoethyl)-gamma-aminopropyl trimethyl (ethyl) oxysilane with mass ratio 2:1:1.The air retention and inflation stability of the composition can be greatly improved by modifying ethylene-propylene-diene rubber, limiting the proportion of butyl rubber, and limiting the substance and ratio of silane coupling agent, which improves the service life and safety performance of the inner tube.

This invention belongs to the field of organosilicon thermally conductive materials, and provides a liquid silicone rubber system for thermally conductive pads and its preparation method. The system comprises vinyl-terminated dimethyl polysiloxane, MQ / phenyl-enriched pre-crosslinked polysiloxane microgel, vinyltrimethoxysilane-modified hexagonal boron nitride, alumina, trimethylsilane-terminated dimethylsiloxane-methylhydrosiloxane copolymer, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane zero-valent platinum complex, and 1-ethynyl-1-cyclohexanol, forming a two-component packaging. This system is advantageous in balancing thermal conductivity, electrical insulation, flowability, defoaming, softness and fit, and long-term stability, making it suitable for the preparation of thermally conductive pads.

The invention provides a repair process for a selective atomic layer. The repair process comprises the following steps: placing a semiconductor structure in an ALD reaction cavity, firstly introducing a first precursor to perform selective adsorption on the surface of a metal interconnection line, then introducing a second precursor to react with the first precursor adsorbed on the surface of the metal interconnection line, and repeating the steps of selective adsorption and reaction to obtain a metal atomic layer; wherein the first precursor is selected from bis (hexafluoroacetylacetone) copper (II) or (trimethylsilane methyl) copper (I); the second precursor is a reducing gas. According to the method, the specific chemical reaction between the specific precursor substance and the copper metal surface is adopted, high selectivity in the repairing process is achieved, then through the reduction reaction, the deposition reaction only occurs on the exposed surface of the copper interconnection line and in pores and gaps in the copper interconnection line and does not deposit on the dielectric layer, and then precise repairing is achieved.

This invention discloses a α The electrosynthesis method of α-aminomethyltetrazole includes: using a platinum sheet as the cathode and a carbon rod as the anode, and employing ammonium tetrabutyltetrafluoroborate as the electrolyte under constant current catalysis, a one-pot coupling of a tertiary amine, an isonitrile, and azide trimethylsilane to prepare the α-aminomethyltetrazole. α The step involving the aminomethyltetrazole derivative, followed by post-treatment and column chromatography separation of the resulting reaction mixture, yields... α - Pure aminomethyltetrazole. This invention yields it through a single reaction step. α -Aminomethyltetrazole has fewer operating steps, avoids the use of large amounts of oxidants and additives, simplifies post-processing, and makes the product easy to separate.

This invention belongs to the field of lithium-ion battery technology, specifically relating to a lithium secondary battery and its application. The battery pack includes alternating positive and negative electrodes, with the outermost layer of the battery pack being entirely positive electrodes, and a separator containing an electrolyte disposed between the positive and negative electrodes. The positive electrode comprises lithium manganese iron phosphate, and the electrolyte comprises an electrolyte, an organic solvent, and additives. The additives contain tris(trimethylsilane) phosphate, with a mass content of 0.5-3 wt%. This invention significantly improves the cycle stability of the battery and substantially enhances the cycle life of lithium secondary batteries using lithium manganese iron phosphate positive electrode materials.

This invention discloses a sunscreen film composition co-assembled with film-forming agents and powders and its application. The composition comprises the following raw materials in parts by weight: 0.5-2.9 parts of trimethylsiloxysilicate, 0.4-2.1 parts of polysiloxane-15, 0.2-1.2 parts of silica, and 0.3-1.4 parts of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer. This invention employs a co-assembly strategy of film-forming agents and powders. By selecting and combining film-forming agents and powders with silicon-oxygen bonding structures, a sunscreen film with tensile strength, friction resistance, and migration resistance is constructed from both molecular and particle dimensions, solving the problems existing in current sunscreen film-forming technologies. At the same time, when the composition is applied to sunscreen products, it can effectively improve the whitening and oily shine of the products.

To provide a novel production method for perfluoroalkyl trimethylsilane that is simpler and more suitable for industrial use, utilizing perfluoroalkyl iodide, which is not subject to production regulations, as the raw material.SOLUTION: A production method for perfluoroalkyl trimethylsilane represented by the general formula (3) includes reacting perfluoroalkyl iodide represented by the general formula (1) with halogenated trimethylsilane represented by the general formula (2) in a polar aprotic solvent in the presence of aluminum. The formula (1) is Rf-I (where Rf represents a C1-3 perfluoroalkyl group). The formula (2) is X-SiMe3 (where X represents a chlorine, bromine, or iodine atom). The formula (3) is Rf-SiMe3 (where Rf represents a C1-3 perfluoroalkyl group).SELECTED DRAWING: None

This invention belongs to the field of new materials for daily chemical products and discloses a single-component aerosol foundation spray, comprising a propellant and a water-in-oil emulsion. The total weight of the water-in-oil emulsion is 100 wt%, and the emulsion contains the following components: dipropylene glycol 6-8 wt%; 1,2-hexanediol 0.6-1 wt%; isomeric oligosaccharides 2-3 wt%; trimethylsiloxysilicate 1.5-2 wt%; VP / hexadecene copolymer 1.5-2.5 wt%; dual-terminated vinyl polyether silicone oil 0.5-0.7 wt%; inorganic salt content less than 0.2 wt%; and an appropriate amount of emulsifier. The single-component aerosol foundation spray of this invention has comprehensive advantages such as smooth spraying, excellent low-temperature stability, and superior film-forming effect.

The application discloses a lignin nanobottle-based photothermal super-hydrophobic deicing coating composition, a coating and a preparation method and application thereof, and belongs to the technical field of coating materials. The coating composition comprises, in mass fractions, 1-20 parts of matured modified lignin nanobottle, 1-10 parts of aminopropyl-terminated polydimethylsiloxane, 1-10 parts of trimesaldehyde, 10-100 parts of hexadecyl trimethylsilane, 10-70 parts of methyl trimethoxysilane and 3000-3500 parts of a solvent. The lignin nanobottle is modified by maturation to enhance the stability and photothermal performance, the aminopropyl-terminated polydimethylsiloxane and the trimesaldehyde are subjected to Schiff base reaction to form an imine bond cross-linked hydrophobic supramolecular polymer, so that the coating has excellent self-healing property and the stability of the coating is enhanced. The various components cooperate with each other, greatly improve the hydrophobic property, weather resistance and deicing property of the coating, and prolong the service life of the coating.

The invention relates to the technical field of lithium ion batteries, in particular to a high-safety lithium battery and a preparation method thereof. The lithium battery comprises a positive plate, a negative plate, a diaphragm, a high-flame-retardant electrolyte and a ceramic fiber membrane, the high-flame-retardant electrolyte comprises the following raw materials: an organic solvent, a lithium salt, a functional additive and a polymer. Through the formula design of the flame-retardant electrolyte obtained by matching triethyl phosphate, hexachlorocyclotriphosphazene and tri (trimethylsilane) borate ternary additives with the brominated polymer, and in combination with the integrated innovation of the ceramic fiber membrane, the thermal safety boundary is greatly improved while the cycle performance of the battery is basically maintained, and the service life of the battery is prolonged. And the potential safety hazard of the high-energy-density lithium battery is solved.

The application relates to a method for synthesizing 5,6-dihydroimidazo[1,2-c]quinazoline and derivatives thereof, which comprises the following steps: reacting boric acid or boric ester with (trimethylsilyl)ethoxymethyl-protected imidazole halide, and then ring-closing under acidic conditions to obtain the target product. The application provides a method for synthesizing 5,6-dihydroimidazo[1,2-c]quinazoline and derivatives thereof, and the method has the advantages of simple synthesis operation, mild reaction condition, improved synthesis efficiency and reduced synthesis cost.

The application belongs to the technical field of polytetrafluoroethylene pipe preparation, and particularly relates to a polytetrafluoroethylene hose and a preparation process thereof, which comprises the following steps: mixing modified polytetrafluoroethylene particles, perfluoroalkoxy resin and a first conductive agent, and then feeding the mixture into an extruder to extrude a pipe embryo; adding methanol and octenyl trimethylsilane into a sodium hydroxide solution, stirring, adding glacial acetic acid, stirring, obtaining a modified solution, immersing the pipe embryo in the modified solution, reacting, taking out, washing, drying, cooling, and obtaining a modified pipe embryo; coating the modified pipe embryo with conductive glue, and performing heating and curing treatment on the conductive glue to obtain a polytetrafluoroethylene hose; mixing and stirring methyl methacrylate, 2-hydroxyethyl acrylate, dipropylene glycol butyl ether and hydroquinone, adding a second conductive agent and an initiator, and stirring uniformly to obtain conductive glue. The application can shorten the charge migration path, accelerate the charge leading-out speed, avoid the accumulation of charges on the pipeline, and maintain production safety.

A lithium-ion battery electrolyte and a lithium-ion battery. In order to solve the problem of poor high-temperature performance and normal-temperature cycle performance of a high-voltage NCM system lithium-ion battery, the electrolyte comprises: an organic solvent, a lithium salt, and an additive, wherein the organic solvent comprises a fluorinated carboxylic ester and a carbonate excluding ethylene carbonate, and wherein the additive comprises one or more of an alkynyl carbonate derivative, a dioxane compound, and a cyclic anhydride, and one or more of vinylene carbonate, fluoroethylene carbonate, ethylene sulfate, lithium difluorophosphate, lithium difluoro bis(oxalato) phosphate, and tris(trimethylsilyl) phosphate. The stability of the high-voltage NCM system lithium-ion battery at a high voltage is greatly improved by means of optimizing the combination of a solvent system and an additive, wherein the solvent system has a mixture of a fluorinated carboxylic ester and a carbonate excluding EC, such that the normal-temperature cycle performance, high-temperature cycle performance, high-temperature storage, and other such capabilities of said high-voltage NCM system lithium-ion battery are all improved.

The invention relates to the technical field of base makeup products, in particular to a base makeup product of a two-phase film forming system and a preparation method thereof.The base makeup product is at least prepared from, by mass, a phase A, a phase B, a phase C and a phase D, the phase A is prepared from, by mass, 0.1%-5% of organic silicon surfactants, 2%-35% of coloring agents, 0.02%-20% of silane film forming agents, 0.01%-55% of conditioning agents and 0.02%-5% of organic silicon modified clay; phase B: 0.001-1% of a plant-derived film-forming agent, 1-20% of a polyol humectant, 0.1-2% of inorganic salt, 0.1-2% of a preservative and the balance of deionized water; the silane film-forming agent at least comprises trimethylsiloxy silicate ester and polymethylsilsesquioxane; the silane film-forming agent is a mixture of a silane film-forming agent and a silane film-forming agent; the plant-derived film-forming agent at least comprises a Taigui maguey leaf extract, so that the provided two-phase film-forming system base makeup product has good water resistance, skin-fitting performance and durability, and the product powder is finer and more skin-fitting, and better meets the use requirements of consumers.

The application discloses an ionic liquid containing a boron-containing oxygen ring and a benzene ring, a preparation method and application, and the ionic liquid is obtained by the reaction of tris(trimethylsilyl) borate, dichloroethylene, 4-p-chlorophenyl imidazoline and diisopropylamine; the ionic liquid can be used for alcoholysis of PET to obtain DMT, improve the conversion rate of DMT, and has a significant prospect in the application of PET degradation and recycling of DMT.

The invention relates to the field of functional styrene materials, and discloses a fireproof flame-retardant HIPS material and a preparation method thereof. The fireproof flame-retardant HIPS material is prepared from the following raw materials in parts by weight: 100-120 parts of HIPS resin, 12-18 parts of a toughening agent, 10-20 parts of a plasticizer, 7-12 parts of a composite flame retardant and 0.5-2 parts of an antioxidant, the composite flame retardant is composed of a coating agent, an inorganic nano flame retardant, nano silicate and a phosphate flame retardant; the coating agent is prepared from (1-hydroxyl allyl) trimethylsilane, vinyltris (methylethylketoxime) silane and ethylene glycol dimethacrylate. According to the fireproof flame-retardant HIPS material prepared by the invention, the inorganic nano flame retardant is used as a main flame-retardant component, so that the fireproof flame-retardant HIPS material has relatively good fireproof flame-retardant property and mechanical property under the condition that a relatively small amount of flame retardant is added, and is wide in application range.