178 results about "Methylsilane" patented technology

The invention relates to resin for electronic component packaging and a preparation method thereof, and belongs to the technical field of high polymer materials, the resin raw materials comprise epoxy resin, an organosilicon prepolymer, a polyamide acid solution, a modified core-shell structure filler, a polydimethylsiloxane alcohol-methylsilanol-silicate ester cross-linked polymer, a silane coupling agent and the like. The resin matrix adopts an organosilicon-epoxy-polyimide-cross-linked polymer quaternary interpenetrating network, the functional filler adopts a specially modified core-shell heterostructure functional filler, the performance breakthrough is realized through a novel composite system and a step-by-step controllable process, and the composite material has good filling property, thermal conductivity and stability, and is suitable for large-scale production. Good packaging of electronic components can be realized, and the service life is long.

The invention discloses a preparation method of near-stoichiometric ZrB2 doped SiC fibers, which comprises the following steps: preparing a zirconium-containing multiphase ceramic precursor (PZMS) and polymethylsilane (PMS) into a PZMS / PMS mixed precursor, and blending the PZMS / PMS mixed precursor with spinning-grade polycarbosilane (PCS) to obtain a mixed precursor; the ZrB2-doped silicon carbide fiber with the C / Si atomic ratio close to an ideal value is obtained through the processes of melt spinning, electron beam / BCl3 crosslinking-heat treatment, hydrogen high-temperature pyrolysis, high-temperature sintering and the like in sequence, and regulation and control of fiber components are achieved.

The invention belongs to the field of cosmetics, and discloses a preparation method of a sunscreen synergistic composition, which specifically comprises the following steps: 1, dissolving isostearic acid in a first solvent, adding polymethyl methacrylate into the first solvent, and carrying out ultrasonic or homogeneous dispersion to obtain a mixture; step 2, carrying out solvent removal treatment on the mixture obtained in the step 1; and 3, dissolving trimethylsiloxy silicate ester in a second solvent, adding the product obtained in the step 2 into the second solvent, and uniformly mixing to obtain the sunscreen synergistic composition, the mass ratio of the polymethyl methacrylate to the isostearic acid to the trimethylsiloxy silicate ester is 1: (0.1-0.3): (0.2-0.9). According to the sunscreen synergistic composition prepared by the preparation method disclosed by the invention, the components of the sunscreen synergistic composition can be better compatible, so that the skin feeling of the sunscreen synergistic composition is more velvet, meanwhile, polymethyl methacrylate is firmer and is not easy to migrate or fall off, and the sunscreen effect of the product is favorably improved.

The invention discloses an anti-ultraviolet automobile window film and a preparation method thereof, and relates to the field of high polymer materials. When the anti-ultraviolet automobile window film is prepared, methylcyclotetrasiloxane, octamethylcyclotetrasiloxane, 3-glycidyl propyl (dimethoxy) methylsilane and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane are subjected to a reaction, and modified polysiloxane is prepared; the preparation method comprises the following steps: reacting benzo [1, 2-d: 5, 4-d '] bis (oxazole)-2, 6-dithiol with 4-aminobenzoyl chloride to prepare a modified ultraviolet absorbent; isophorone diisocyanate, polytetrahydrofuran ether glycol, the modified polypyrrole particles, the modified polysiloxane and the modified ultraviolet absorbent are subjected to a reaction, and the reaction product is spread in a mold. The anti-ultraviolet automobile window film prepared by the invention has good anti-ultraviolet, heat-insulating, flame-retardant and anti-aging properties and good mechanical properties.

The present invention discloses a hydrophobic Cu / SiO2 catalyst and its preparation and application. The preparation method of the hydrophobic Cu / SiO2 catalyst includes: adding a Cu / SiO2 catalyst into a mixed solution of a hydrophobic treatment agent and an organic solvent, oscillating at 30-60 °C for 1-12 h, filtering after oscillation and washing with ethanol to remove the excess hydrophobic treatment agent, and then drying in an oven at 40-200 °C for 1-24 h to obtain the hydrophobic Cu / SiO2 catalyst; the hydrophobic treatment agent is one or more of methoxytrimethylsilane, trimethylchlorosilane, dimethyldiacetoxysilane, and triisopropyloxysilane. The present invention provides the application of the hydrophobic Cu / SiO2 catalyst in the dehydrogenation lactonization reaction of diglycol, improving the selectivity / yield of the target product.

The invention belongs to the technical field of medicines, and relates to chemical synthesis, in particular to a synthesis process of retinoic acid silane ester. The invention discloses a synthesis process of retinoic acid silane ester. The retinoic acid silane ester is prepared by carrying out nucleophilic reaction on retinoic acid and halomethyltrimethylsilane in the presence of alkali. According to the invention, the raw materials retinoic acid, chloromethane trimethylsilane and cesium carbonate are added into the solvent, the reaction temperature is controlled, after the reaction is finished, the product is obtained through post-treatment crystallization, and according to the synthesis process, the maximum product yield is about 90%.

The invention provides a sandwich-structure bidirectional film-forming composition and a preparation method and application thereof, and relates to the technical field of sunscreen, the preparation method comprises the following steps: mixing isododecane, trimethylsiloxy silicate ester and disteardimonium hectorite to obtain an oil phase mixture; mixing butanediol, the sodium hyaluronate cross-linked polymer and the like to obtain a water-phase mixture; homogenizing the oil phase mixture and the water phase mixture; performing curing reaction and homogenizing pretreatment. According to the sandwich structure disclosed by the invention, the disteardimonium hectorite is taken as a carrier, an oil phase forms an initial hydrophobic membrane, the oil phase expands when encountering water and sweat, sunscreen protection is synergistically enhanced, and the prepared composition of the sandwich structure is good in stability.

The invention relates to the technical field of cables, and provides a high-strength corrosion-resistant flexible cable which sequentially comprises a sheath layer, an insulating layer and a conductor from outside to inside, the sheath layer comprises the following components in parts by weight: 90 parts of composite polyvinyl chloride, 10-15 parts of high-density polyethylene, 6-12 parts of ethylene propylene diene monomer, 3-6 parts of ethylene-methyl methacrylate copolymer, 10-20 parts of filler, 1-2 parts of antioxidant, 2-4 parts of plasticizer, 15-18 parts of flame retardant and 0.5-0.7 part of vulcanizing agent; the preparation method of the composite polyvinyl chloride comprises the following steps: putting polyvinyl chloride into a plasma treatment device, vacuumizing, introducing a plasma gas source, and carrying out etching treatment to obtain the composite polyvinyl chloride, the plasma gas source comprises hexafluoroacetone and methylsilane in a volume ratio of (3-9): 1. According to the technical scheme, the problem of poor corrosion resistance of the cable sheath layer in the prior art is solved.

The invention discloses a high-strength acrylate rubber material and a preparation method thereof, and relates to the technical field of high polymer materials. When the high-strength acrylate rubber material is prepared, polyhydroxy imidazolium salt and phosphorus pentoxide react to prepare a functional flame retardant; reacting the pre-modified glass fiber with hydrazine hydrate to obtain modified glass fiber; the preparation method comprises the following steps: carrying out solution polymerization on ethyl acrylate, butyl acrylate, acryloxy propyl bis (trimethylsiloxy) methylsilane and glycidyl methacrylate to prepare acrylate raw rubber; the high-strength acrylate rubber material is prepared by uniformly mixing acrylate raw rubber, the modified glass fiber, a functional flame retardant and triphenyl phosphine, plastifying and thin-passing. The high-strength acrylate rubber material prepared by the invention has excellent flame-retardant, antibacterial, anti-aging and mechanical properties.

The invention belongs to the technical field of cosmetics, and particularly discloses a freeze-dried powder base solution and a preparation method thereof. The freeze-dried powder base solution comprises a component A and a component B. The component A is prepared from magnesium potassium fluosilicate, a filling agent, lauroyl lysine, titanium dioxide, CI 77492, CI 77491, CI 77499 and the balance water, butanediol, xanthan gum, a thickening agent, trehalose, polysorbate-60, an emulsifying agent a, phenyl polytrimethylsiloxane, isononyl isononanoate and a preservative. The component B is prepared from the following components: the balance of water, butanediol, a preservative, magnesium sulfate, an emollient, disteardimonium hectorite, phenyl polytrimethylsiloxane, isododecane, trimethylsiloxy silicate ester, an emulsifier b and PEG-10 (Polyethylene Glycol) polydimethylsiloxane. Various raw materials are mixed, so that the obtained liquid foundation has relatively good dispersity, has smooth and refreshing skin feeling, and is prevented from being thick, sticky and greasy.

The invention relates to the technical field of insulating paint, in particular to insulating paint capable of preventing bird damage and foreign matter lap joint and a preparation method of the insulating paint. The invention provides an insulating coating for preventing bird damage and foreign matter lap joint. The insulating coating is prepared from the following raw materials in parts by weight: 55 to 80 parts of methylsilane modified polyurethane liquid, 23 to 40 parts of polyamide fiber nano powder, 10 to 20 parts of organic silicon modified calcium lignosulphonate suspension, 8 to 10 parts of hydrophobic silicon dioxide, 2 to 5 parts of flatting agent, 1 to 2 parts of pigment, 3 to 5 parts of anti-aging agent and 10 to 15 parts of diluent. The insulating property of the coating is extremely high, the withstand voltage value per millimeter can reach 40kV and above, while the withstand voltage value per millimeter of a conventional insulating coating is generally 18kV; and the insulating paint is high in strength and good in toughness, and has good hydrophobicity and hydrophobicity migration.

The utility model discloses a trimethylsilane production tail gas treatment device which comprises a treatment barrel, a plurality of supporting legs are fixedly arranged at the lower end of the treatment barrel, an upper cover is arranged at the upper end of the treatment barrel, a gas inlet pipe is fixedly arranged at the side end of the treatment barrel, an exhaust pipe is fixedly arranged on the upper cover, and a gas outlet pipe is fixedly arranged on the exhaust pipe. A cleaning structure is movably arranged in the treatment barrel, and the inner wall of the treatment barrel is cleaned through the cleaning structure; the cleaning structure comprises a first middle box, a first spray head and a scraping block, an electric push rod is fixedly arranged on the upper cover, a moving plate is connected to the electric push rod, the cleaning structure is arranged on the moving plate, a recycling structure is arranged at the lower end of the treatment barrel, and the recycling structure comprises a collecting box, a heat accumulator and a cover plate. And waste liquid and heat are recycled through the recycling structure.

The present invention relates to the field of skin cosmetics, and in particular to a soothing, long-lasting, sun-protective isolation cream and its preparation method. The isolation cream's raw materials include butylene glycol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, p-hydroxyacetophenone, disteardimonium hectorite, aluminum hydroxide, Piper mesenteriae leaf / root / stem extract, Gentiana scabra extract, and water. The isolation cream prepared by the present invention has good soothing, long-lasting, and sun-protective effects, as well as excellent free radical resistance and moisturizing effects. It is easy to apply and can improve skin gloss to a certain extent.

The invention relates to the technical field of cosmetics, and particularly discloses bright non-stick cup lip glaze and a preparation method thereof. The raw materials of the lip glaze comprise the following components in parts by weight: 15 to 40 parts of a solvent, 5 to 15 parts of an emollient, 30 to 70 parts of a film-forming agent, 2 to 20 parts of a brightener, 0.1 to 10 parts of a thickening agent, 3 to 10 parts of a coloring agent, 0.5 to 1.0 part of a preservative, 0.1 to 1.0 part of an antioxidant, 0.1 to 1.0 part of a cool feeling agent, 0.01 to 1.0 part of an active component and 0.01 to 1.0 part of an aromatic, wherein the film forming agent is prepared from an acrylic acid (ester) / polydimethylsiloxane copolymer, polymethyl silsesquioxane, trimethylsiloxy silicate ester and polypropyl silsesquioxane. The lip glaze provided by the invention is not easy to stick to a cup, is lasting, and also has a relatively good light effect.

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.

The invention relates to the technical field of batteries, in particular to a battery and a power utilization device, and the battery comprises a positive pole piece, a negative pole piece and electrolyte; the positive pole piece comprises a positive current collector and a positive active layer arranged on at least one surface of the positive current collector, the positive active layer comprises a positive lithium supplement agent, and the positive lithium supplement agent comprises at least one of lithium ferrite and lithium nickelate; the electrolyte comprises a first additive, the first additive comprises a compound with a structure shown in a formula (I), R1, R2 and R3 are respectively and independently selected from one of allyl, divinyl methyl silane, vinyl dimethyl silane or trivinyl silane, and at least one of R1, R2 and R3 is selected from one of divinyl methyl silane group, vinyl dimethyl silane group or trivinyl silane group. By adding the first additive into the electrolyte, dissolution of iron ions or nickel ions in the lithium supplement agent is inhibited, the structural stability of the positive electrode lithium supplement agent is enhanced, and the cycle life of the battery is prolonged.

This invention relates to the field of electrochemical energy storage technology, specifically disclosing a locally high-concentration electrolyte and its preparation method. The electrolyte uses methoxytrimethylsilane and 2,2,2-trifluoroethyl methanesulfonate as the base solvent, ethoxy(pentafluoro)cyclotriphosphazene or 1,1,1,3,3,3-hexafluoroisopropyl methyl ether as the functional diluent, and is compounded with specific proportions of sodium bis(trifluoromethanesulfonyl)imide, sodium hexafluorophosphate as the main salt, and vinyl sulfate and siloxane polymer additives. Through the synergistic effect between the components, while ensuring high ionic conductivity and excellent wettability, it also significantly improves the stability of the negative electrode interface, providing key material support for the development of high-energy-density negative electrode-free sodium metal batteries, and showing broad application prospects in large-scale energy storage, portable electronic devices, and other fields.

The application provides a method for improving the mechanical properties of ceramic matrix composites, and relates to the technical field of ceramic matrix composite preparation. The method uses polymethylsilane (PMS) as a ceramic precursor, silicon carbide powder as a filler, divinylbenzene (DVB) as a cross-linking agent, introduces boron nitride as a sintering aid and a second-phase toughening component, and is prepared through six core processes of constant-temperature mixing under nitrogen protection, carbon fiber cloth vacuum impregnation, laminating exhaust forming, tungsten bead weight matching shaping, two-stage gradient sintering and multiple precursor impregnation and densification to obtain high-performance continuous carbon fiber reinforced silicon carbide composite materials. The sintering promotion effect and dispersion toughening mechanism of boron nitride are used, and the optimized forming process of layer-by-layer exhaust and weight matching shaping is used to effectively reduce the porosity of the matrix, and significantly improve the material density, bending strength and fracture toughness. The process parameters of the application are quantifiable and controllable, the batch stability is high, no special equipment is needed, and the application can be adapted to large-scale production.

The invention discloses an immersion plating method for a nano-palladium layer on the surface of a bonded oxygen-free copper wire and a palladium-plated bonded oxygen-free copper wire. Relates to the technical field of palladium-plated copper wires. According to the dip plating method for the nano-palladium layer on the surface of the bonded oxygen-free copper wire, the bonded oxygen-free copper wire is soaked in ethyl alcohol to be cleaned and dried for standby application; the preparation method comprises the following steps: dissolving a surfactant, benzotriazole and rosin in an organic solution; adding nano palladium powder to obtain a dip plating solution; carrying out dip plating treatment on the bonded oxygen-free copper wire in the dip plating solution, drying after dip plating, and carrying out vacuum annealing; the surfactant is prepared from methyl amyl alcohol, trimethylsilyl glucoside, sodium dodecyl diphenyl ether disulfonate, a carbon nano tube and deionized water. The surface active agent is added, so that nano palladium particles can be uniformly dispersed in the plating solution, the palladium particles are prevented from being agglomerated, a more uniform and compact palladium plating layer can be obtained, the quality of the plating layer is improved, and the corrosion resistance is better.

Disclosed in the present invention are a preparation method and preparation system for tris(dimethylamino)silane. The preparation method comprises: in the presence of a metal supported catalyst, reacting methylsilane with dimethylamine to prepare tris(dimethylamino)silane, the metal supported catalyst comprising metal nanoparticles and a catalyst support loaded with the metal nanoparticles. The present invention uses methylsilane and dimethylamine as raw materials to synthesize tris(dimethylamino)silane by means of a one-step reaction under the catalysis of the metal supported catalyst, wherein none of the raw materials and the catalyst causes chlorine pollution. In addition, the present invention uses three equivalents of dimethylamine gas and one equivalent of methylsilane to react, thereby preventing raw material waste.

The invention discloses a green synthesis method of electronic-grade methylsilane and hydrogen chloride based on an ionic liquid catalyst, belongs to the technical field of synthesis of organosilicon compounds and high-purity electronic special gases, and discloses a green synthesis method of electronic-grade methylsilane and hydrogen chloride based on an ionic liquid catalyst. Comprising the following steps of S1, catalyst preparation, S2, methylsilane and hydrogen chloride preparation, S3, product purification and S4, activated carbon regeneration, 1-ethyl-3-methylimidazole aluminum chloride as the catalyst has good thermal stability and catalytic activity, the risk of catalyst inactivation is avoided, the catalyst can be pumped into a reaction kettle, the whole process is operated in a closed mode, and operation is easy. The method is safe, reliable and environment-friendly, and meanwhile, regeneration and recycling of the activated carbon bring a better use prospect.

The application relates to the technical field of fine chemical synthesis, and discloses a PDI catalyst for preparing cresol trisiloxane, a preparation method and a preparation method of cresol trisiloxane. Me PDI)FeBr2, sodium and nai are dissolved in an ultradry solvent, and the reaction is stirred under a nitrogen atmosphere; the reaction product is post-treated to obtain a PDI catalyst; 2-(2'-hydroxy-3'-methylethenyl-5'-methylphenyl) benzotriazole and the PDI catalyst are dissolved in an organic solvent, the temperature is increased to 50-60 DEG C, bistrimethylsiloxy methylsilane is added dropwise, and the reaction is preserved for 6-10 h; the organic solvent is removed by concentration under reduced pressure, and crystallization is carried out to obtain cresol trisiloxane. The iron complex catalyst is used to replace the traditional platinum catalyst, the material cost is reduced, the risk of heavy metal residue can be avoided, a small amount of the iron complex catalyst can be used, and higher catalytic activity and selectivity can be realized.

The utility model relates to chemical synthetic technical field, concretely is a kind of production system of industrial grade ethylsilane, including the ethylsilane production unit, heat exchange unit, gas-liquid separation unit, ethylsilane temporary storage tank connected in turn;Ethylsilane production unit includes hydrogen preheater, methylsilane preheater, ethylsilane reactor, wherein, hydrogen preheater and methylsilane preheater one end are all provided with inlet pipe, and other end is all connected with ethylsilane reactor, and ethylsilane reactor is connected with heat exchange unit;Heat exchange unit is also connected with hydrogen circulation unit and methylsilane circulation unit.Hydrogen recovery recycling, after a period of time, the hydrogen generated in the reaction process can meet the operation required of ethylsilane production unit, stop external hydrogen supply;Methylsilane recovery recycling, save material, reduce consumption.

The present invention provides a high-adhesion and high-water-resistant heat-sensitive anti-counterfeiting ink for printing, comprising the following components in parts by mass: 30-40 parts of acrylic emulsion, 10-20 parts of polyurethane emulsion, 1-10 parts of bisphenol A epoxy resin, 1-10 parts of thermochromic dye, 1-10 parts of heat-sensitive microcapsules, 1-2 parts of a first coupling agent, 1-2 parts of a second coupling agent, 2-3 parts of a wetting agent, 2-3 parts of a cross-linking agent, 1-5 parts of a fluorine compound modifier, 1-2 parts of methyl silane, 1-10 parts of a wax emulsion, and 1-2 parts of a second coupling agent. ‑2 parts, defoaming agent 0.2‑1 parts, leveling agent 0.5‑1 parts, preservative 0.1‑0.5 parts; wherein, the acrylic emulsion, polyurethane emulsion, first coupling agent and wetting agent are fixed in the network structure formed by the cross-linking agent, and the hydrophobic layer formed by the wax emulsion, and the fluorine compound modifier, second coupling agent, and methyl silane are fixed in the three-dimensional network structure formed by the cured epoxy resin. The fixed components interact with each other, effectively improving the adhesion and water resistance of the ink.

The application provides a transparent flexible double-crosslinked silicon-based modified cellulose aerogel and a preparation method thereof. Vinyl silane and methyl silane are used as precursors, a double-crosslinked method of radical polymerization / hydrolysis polycondensation is adopted, a polysiloxane homogeneous sol is prepared, a cellulose gel is immersed in the homogeneous sol, and finally the supercritical drying process is performed to prepare the aerogel of the application. Due to the double-crosslinked structure of radical polymerization and hydrolysis polycondensation, the aerogel has good transparency and strength. Meanwhile, the introduction of methyl silane and the unique characteristics of cellulose endow the aerogel with good hydrophobic property and excellent flexibility. In addition, the aerogel material has an extremely low thermal conductivity, and the heat preservation and insulation performance is far superior to that of traditional heat preservation materials, so that the aerogel has a broad application prospect in the fields of heat preservation and insulation and transparent glass.

The present invention belongs to the field of polymer materials and their application technology, and discloses a flame-retardant and antistatic hollow board packaging material, as well as its preparation and application. The preparation method comprises the following steps: catalytically polymerizing an epoxysilane monomer, a methylsilane monomer, and a hydrogen silane end-capping agent to obtain a hydrogen-terminated epoxy polysiloxane; then catalytically copolymerizing the reaction with an α,ω diene to obtain an epoxy polysiloxane-modified polyolefin elastomer solution; then adding a reinforcing filler surface-modified with an aminosilane coupling agent and an antistatic agent to react; after the reaction is complete, adding a flame retardant and a foaming agent, mixing, drying, and granulating to obtain a flame-retardant and antistatic hollow board packaging material. The special material of the present invention can be used for flame retardancy, antistatic properties, and reinforcement, toughening, and blending modification of polyolefin hollow board packaging materials.

The invention aims to provide an anaerobic ammonia oxidation reactor carrier, a preparation method thereof and an anaerobic ammonia oxidation reactor. The preparation method of the carrier comprises the following steps: A, preparing a polyvinylpyrrolidone aqueous solution with the mass ratio of (80-120): 1, adding carbon nanotubes into the polyvinylpyrrolidone aqueous solution, and uniformly dispersing to obtain a carbon nanotube dispersion liquid; b, adding the modified lepidolite slag into the carbon nanotube dispersion liquid, and performing ultrasonic dispersion to obtain composite dispersion liquid; c, adding methoxytrimethylsilane into an ethanol solution to obtain a treatment solution; and D, uniformly mixing polyurethane sponge and the composite dispersion liquid according to a mass ratio of 1: (40-60), adjusting the temperature to 70-90 DEG C, carrying out heat preservation stirring for 1-3 hours, then adding the treating fluid, continuously stirring for 3-5 hours, then filtering, placing in a drying oven, and drying to obtain the carrier. The carrier can promote growth and metabolism of microorganisms. The reactor provided by the invention can better treat wastewater with high ammonia nitrogen and high organic matter content.

The invention discloses a preparation process of electronic-grade bis (diethylamino) silane, and relates to the technical field of chemical synthesis. The preparation process of the electronic-grade bis (diethylamino) silane at least comprises the following preparation steps: dehydrating monosilane through a low-temperature adsorption tower to obtain dehydrated monosilane, and separating heavy components from diethylamine through a molecular sieve membrane to obtain purified diethylamine; reacting the dehydrated monosilane with the purified diethylamine in the presence of a palladium-loaded catalyst to obtain crude bis (diethylamino) silane; and carrying out reduced pressure rectification on the crude bis (diethylamino) silane to separate low-boiling-point substances, and carrying out complexing adsorption on the low-boiling-point substances by using an ethylenediamine tetraacetic acid modified silica gel bed layer to remove metal ions so as to obtain the electronic-grade bis (diethylamino) silane. The purity of the prepared electronic-grade bis (diethylamino) silane is greater than or equal to 99.9995%, the chloride ion content is less than or equal to 20ppb, the total amount of metal impurities is less than or equal to 8ppb, the reaction yield is greater than or equal to 91%, and the comprehensive energy consumption is reduced by more than 50%.

The invention discloses a high-strength asphalt composite material and a preparation method thereof, and relates to the technical field of asphalt materials. The high-strength asphalt composite material comprises the following raw materials in parts by weight: 60-80 parts of matrix asphalt, 5-15 parts of glass fibers, 3-10 parts of a nano inorganic filler, 0.5-3 parts of an anti-stripping agent, 1-5 parts of a plasticizer and 0.5-1 part of a modified antioxidant, the preparation method comprises the following steps: reacting 2-n-propyl-4-methyl-6-carboxyl benzimidazole with thionyl chloride to generate an acyl chloride compound; reacting the acyl chloride compound with bis (4-aminophenoxy) dimethyl silane to generate silane modified benzimidazole; enabling the silane modified benzimidazole to react with 11-bromine-1-undecanol to generate a long-chain compound; and reacting the long-chain compound with ethylenediamine tetraacetic acid dianhydride to generate the anti-stripping agent. The high-strength asphalt composite material prepared by the invention has good anti-stripping strength and oxidation resistance.

The invention discloses an easy-to-clean rubber release agent and a preparation method thereof, and relates to the technical field of release agents. Comprising the following components in parts by weight: 200 to 250 parts of white oil, 10 to 40 parts of methylsilane, 10 to 40 parts of trimethylsiloxy silicon resin, 10 to 25 parts of polydimethylsiloxane, 10 to 15 parts of sodium dodecyl benzene sulfonate, 5 to 8 parts of triethanolamine dodecylbenzene sulfonate, 1 to 3 parts of modified polypropylene wax, 2 to 5 parts of heptadecafluorodecyl triethoxysilane, 1 to 4 parts of a regulator, 0.5 to 2 parts of an emulsifier and 1.5 to 2 parts of a stabilizer. 0.3 to 0.7 part of a catalyst; and 100 to 150 parts of deionized water. According to the invention, sodium dodecyl benzene sulfonate and triethanolamine dodecyl benzene sulfonate are designed, so that the easy-to-clean function of the rubber release agent is realized, the problem that the release agent is difficult to clean is solved, the adhesive force between a mold and a rubber product can be reduced, the demolding efficiency is improved, and the cleaning difficulty of the rubber release agent is reduced.