34 results about "Dimethyldiethoxysilane" patented technology

The invention discloses a high-self-cleaning weather-resistant GRTV insulating coating for electrical equipment, which comprises the following components: a film-forming agent consisting of solvent-type fluororesin, hydroxyl-terminated polysiloxane, acrylic resin and polyether polyol, a reinforcing agent consisting of at least two of MQ silicon resin, silicon dioxide, silicon nitride and fluororesin micro powder, a filling agent consisting of aluminum oxide, a curing agent consisting of a curing agent and a solvent, the curing agent is composed of two or three components of tetraethoxysilane, methyltriacetamide silane, dimethyl diacetamide silane or dibutyltin oxide, and trichloroethylene or butyl acetate is used as an organic solvent; the anti-pollution flashover coating is good in adhesive force, excellent in electrical insulation performance, good in hydrophobicity, high in anti-pollution flashover capacity, excellent in mildew resistance, algae resistance and anti-burst scattering characteristic, good in self-cleaning performance and capable of better exerting the anti-pollution flashover efficiency under the conditions of high salinity, high humidity and heavy pollution, and the insulation strength is not affected by environment temperature and moisture.

The invention discloses an aerogel-based weather-resistant thermal insulation felt and a preparation method thereof, belongs to the technical field of thermal insulation felt processing, and is used for solving the technical problem that the thermal insulation performance and the weather resistance of a thermal insulation felt in the prior art need to be further improved. The modified aerogel base solution and the mixed slurry are added, ammonia water is added to adjust the pH value to be 8 + / -0.5, the mixture is transferred into a drying box with the temperature being 40-50 DEG C, a heat preservation reaction is conducted for 0.5-1 h, a dimethyldiethoxysilane solution is added, a heat preservation reaction is conducted for 8-10 h, n-hexane elution and drying are conducted, and the heat insulation felt is obtained. The modified aerogel and the glass fiber felt are used as base materials, the heat insulation felt is prepared through an impregnation method, the heat preservation performance and the weather resistance of the heat insulation felt are improved, and the mechanical performance of the heat insulation felt is improved.

The invention belongs to the technical field of hydrophobic coatings, and particularly discloses a transparent super-hydrophobic coating with self-cleaning performance, heat resistance and antibiosis and a preparation method thereof.The preparation method comprises the steps that gas-phase SiO2 powder is selected as a raw material, a DEDMS modified polysiloxane spraying solution is synthesized through a sol-gel method, the solution is sprayed to a glass plate through a spray gun, and the transparent super-hydrophobic coating is obtained. Placing a sample at room temperature to volatilize a solvent or drying the sample in a drying oven to obtain a transparent super-hydrophobic coating with self-cleaning performance, heat resistance and antibiosis; according to the preparation method, gas-phase SiO2 powder is selected as a raw material, the gas-phase SiO2 is modified by dimethyl diethoxysilane (DEDMS), and the polysiloxane spraying liquid is synthesized by a simple sol-gel method, so that the hydrophobic capacity is greatly enhanced, and meanwhile, the service life of a coating is effectively prolonged; the surface of a coating formed by spraying the polysiloxane spraying liquid is of a micro-coarse structure, so that water drops easily roll down and take away pollutants on the surface, and the coating has good self-cleaning performance and antibacterial performance; the process is simple, environment-friendly and low in cost.

The invention relates to an organic silicon resin, which is mainly prepared by carrying out polymerization on dimethyl diethoxy silane, biphenyl p-dimethyl alcohol, diphenyl diethoxy silane, 3, 3, 3-trifluoropropyl methyl dimethoxy silane, triethoxy ethyl silane, neopentyl glycol, 1, 4-succinic acid and the like, and is characterized in that the organic silicon resin is prepared by carrying out polymerization on the dimethyl diethoxy silane, the biphenyl p-dimethyl alcohol, the diphenyl diethoxy silane, the 3, 3, 3-trifluoropropyl methyl dimethoxy silane, the triethoxy ethyl silane, the neopentyl glycol, the 1, 4-succinic acid and the like; a powder coating prepared from the obtained organic silicon resin and a TGIC curing agent can be cured at a low temperature of 150 DEG C / 15 min, and a cured coating film is relatively good in conventional performance, excellent in resistance to high temperature of 350 DEG C for a long time and relatively excellent in scratch resistance and solvent resistance.

The invention relates to a preparation method of a zirconium-doped organic silicon resin modified epoxy resin-based fireproof coating. The preparation method comprises the following steps: preparing zirconium-doped organic silicon resin from methyltriethoxysilane, phenyltrimethoxysilane, methylphenyldimethoxysilane, dimethyldiethoxysilane, n-butyl alcohol, zirconium n-propoxide, acetylacetone, water and hydrochloric acid; the preparation method comprises the following steps: grafting zirconium-doped organic silicon resin and epoxy resin to synthesize zirconium-doped organic silicon resin modified epoxy resin, and preparing and synthesizing the zirconium-doped organic silicon resin modified epoxy resin based fireproof coating by taking the zirconium-doped organic silicon resin modified epoxy resin as a coating matrix, melamine, ammonium polyphosphate, pentaerythritol and aluminum hydroxide as fillers and a 593 curing agent as a curing aid. The invention has the following effects: after the coating is fired for 2 hours under butane flame (1200-1300 DEG C), the back temperature does not exceed 160 DEG C, and the heat insulation performance is excellent; the total heat release (THR) is as low as 56.97 MJ / m < 2 >, the limit oxygen index value is increased to 33.27%, the flame retardant grade reaches V-0 grade, the total smoke release (TSP) is as low as 6.97 m < 2 >, and the flame retardant and smoke suppression performance is excellent.

This invention discloses a natural antibacterial polydopamine microcapsule and its preparation method. The shell material of the natural antibacterial polydopamine microcapsule is polydopamine, and the core material is Artemisia argyi oil. Using a soft template method with dimethyldiethoxysilane (DMDES) as the raw material, dopamine is in-situ self-polymerized on the surface of polydimethylsiloxane (PDMS) emulsion droplets solubilized with Artemisia argyi oil to prepare natural antibacterial polydopamine microcapsules encapsulating Artemisia argyi oil. The microcapsules prepared by this invention are micrometer-sized, monodisperse, and have high sphericity, with an average size of 1 μm. They exhibit high encapsulation efficiency for Artemisia argyi oil, with the highest encapsulation efficiency reaching 21.5% of the total mass of the microcapsules. This invention overcomes the disadvantages of high cost and environmental pollution caused by the large use of surfactants in classic emulsions. The preparation process is simple; it overcomes the defects of Artemisia argyi oil's volatility and instability; it has good monodispersity and certain antibacterial efficacy; and it can have a potential long-lasting antibacterial effect through the sustained release of Artemisia argyi oil. The preparation of monodisperse natural antibacterial polydopamine microcapsules has broad application potential in the industrial production of aromatic microcapsules.

The invention relates to the technical field of preparation of methanol through hydrogenation, in particular to a preparation method and application of a hydrophobic supported catalyst, and the preparation method comprises the following steps: S1, preparing a mesoporous gamma-Al2O3 carrier by adopting an evaporation-induced self-assembly method; s2, carrying out hydrophobic modification on the gamma-Al2O3 carrier by adopting a method of heating in a water bath kettle at a constant temperature and a low temperature and adopting silane reagents such as dimethyl diethoxy silane, propyl trimethoxy silane, octyl trimethoxy silane and the like; s3, loading Cu and ZnO by adopting a wet impregnation method or an easy impregnation-capture method; the surface property of the gamma-Al2O3 material is improved through hydrophobic modification of a methyl group, and the catalyst prepared by the method has higher hydrophobicity and has higher methanol selectivity and reaction stability compared with an unmodified catalyst in the reaction of synthesizing methanol through co-hydrogenation of carbon monoxide and carbon dioxide.

The invention relates to the technical field of frame sealing adhesive tapes, in particular to a screen frame sealing adhesive tape and a preparation method thereof.The screen frame sealing adhesive tape sequentially comprises a PET release layer, a PU foam layer and a TPU layer, and every two adjacent layers are bonded through a specific acrylic acid adhesive layer. The acrylic acid adhesive layer is formed by compounding methyl methacrylate, triallyl phosphate, 2-ethylhexyl acrylate, methacryloyloxyethyl phosphate, an initiator, dimethyl diethoxy silane, a gradient particle size nano filler, coumarone indene resin, a cross-linking agent, a toughening agent and a solvent. According to the formula, a compact three-dimensional network structure is formed, so that an adhesive layer is endowed with excellent high-temperature cohesion, flexibility and bonding strength, thermal oxidative degradation can be effectively inhibited, invasion of water vapor and dust is blocked, and cracking of the adhesive layer and loosening of parts are avoided. The PU foam provides buffering and damping, the TPU layer improves weather resistance and aging resistance, and the PU foam, the TPU layer and the PU foam synergistically construct a dual-protection system, so that the adhesive tape is still stably bonded at a high temperature for a long time, and the connecting life of a frame of display equipment is prolonged.

The invention discloses preparation and application of a high-performance polyacrylonitrile carbon fiber sizing agent. The technological process comprises the following four steps: step A, carrying out graft polymerization on bisphenol S type epoxy resin and an acrylic monomer to obtain polyacrylic acid water-borne epoxy resin rich in hydrophilic groups; step B, synthesizing a polysiloxane copolymer containing a functional group from a silane coupling agent and dimethyl diethoxy silane; step C, carrying out graft polymerization on the reaction product in the step A and the reaction product in the step B to prepare polyacrylic acid and polysiloxane modified waterborne epoxy resin; d, reacting the prepared product with a curing agent, and curing at high temperature to obtain a modified epoxy resin cured film; the product provided by the invention has good epoxy reaction activity and storage stability, strong adhesive force, better carbon fiber flexibility, flame retardance, thermal oxidation resistance and other mechanical properties, and the compatibility between the carbon fiber and a polymer is improved; and a three-dimensional cross-linked structure formed by curing can improve the tensile strength and the water resistance of the carbon fiber.

The present invention discloses a preparation method of lightweight composite kaolin, relating to the field of ceramics. When preparing the lightweight composite kaolin, dopamine is polymerized on the surface of silicon carbide whiskers to obtain modified silicon carbide whiskers; after reacting 3-glycidylpropyl(dimethoxy)methylsilane, methyltriethoxysilane, dimethyldiethoxysilane and methyldiethoxysilane, 2-acryloyl-1-boronic acid is grafted to obtain modified silicone resin; montmorillonite, polyethylene glycol, styrene, 4-vinyl aniline and divinylbenzene are mixed evenly to obtain modified montmorillonite; the modified montmorillonite, modified silicone resin and composite ceramic powder are mixed evenly and then sintered at a gradient temperature to obtain the lightweight composite kaolin. The lightweight composite kaolin prepared by the present invention has excellent plasticity, heat preservation property and crack resistance.

The invention discloses a high-voltage fuse ceramic tube material and a preparation method thereof, graphite oxide and KH560 are used as raw materials, carboxyl on the graphene oxide and epoxy on the KH560 are made to react to prepare modified graphite, a modifier, the modified graphite, dimethyldiethoxysilane, methyltriethoxysilane and tetrabutyl titanate are subjected to hydrolytic condensation to prepare a precursor, and the precursor is subjected to heat treatment to obtain the high-voltage fuse ceramic tube material. A precursor, quartz sand and PVA are subjected to ball milling, blending and roasting, a green body is prepared, then deposition treatment is conducted on the surface of the green body, the surface of a ligand is coated with boron nitride, the ceramic tube material is prepared, the ceramic tube material internally contains a cage-shaped structure and metal titanium doping, the toughness of a ceramic tube can be enhanced, the ceramic tube material internally contains a graphite structure, and the particle toughening effect is achieved; meanwhile, the surface of the ceramic tube material is coated with boron nitride, so that the effect of deflecting cracks to bear loads during fracture can be achieved, more fracture energy is dissipated, and the toughness of the ceramic tube material is improved.

The invention provides a preparation method of an amphiphilic hybrid silicon-based antifouling coating, which comprises the following steps: S1, co-hydrolyzing a mixed organic silicon monomer and nano silicon dioxide, and adding a catalyst to carry out condensation polymerization to obtain organic-inorganic hybrid silicon resin; s2, reacting polyethylene glycol with a silane coupling agent containing an isocyanate group to obtain a polyethylene glycol prepolymer; s3, mixing the organic-inorganic hybrid silicon resin obtained in the step S1 with the polyethylene glycol prepolymer obtained in the step S2, and adding an amino silane curing agent for cross-linking reaction to obtain the amphiphilic hybrid silicon-based antifouling coating; the preparation method comprises the following steps: copolymerizing nano silicon dioxide serving as an inorganic phase with methylphenyldimethoxysilane, dimethyldiethoxysilane, KH560 and tetraethoxysilane through a water-dropping fixed emulsion polymerization method to synthesize organic-inorganic hybrid silicon resin, and introducing a polyethylene glycol flexible chain segment, so that the coating is endowed with efficient antifouling capacity while the integrity of the coating is maintained.

The invention relates to the technical field of travertine ceramic tiles, and mainly relates to a travertine ceramic tile with skin-friendly touch and uniform glossiness and a preparation method thereof. The invention discloses a travertine ceramic tile with skin-friendly touch and uniform glossiness. The travertine ceramic tile comprises a travertine ceramic tile body and a hybrid coating, the hybrid coating is prepared from a hybrid coating; the hybrid coating comprises a component A and a component B, wherein the component A comprises modified polysiloxane resin, propylene glycol monomethyl ether, ethylene glycol monomethyl ether, silicone oil, a flatting agent, a defoaming agent and isopropanol; the component B comprises full-methylated amino resin, inorganic micro powder, a dispersing agent, an anti-settling agent, ethylene glycol butyl ether and a catalyst; the modified polysiloxane resin is prepared from tetraethoxysilane, methyltrimethoxysilane, dimethyldiethoxysilane, citric acid, a silane coupling agent, a solvent, formic acid and propylene glycol monomethyl ether; the inorganic micro powder comprises nano silicon dioxide micro powder. According to the invention, the hand feeling of the travertine ceramic tile can be effectively improved, and the travertine ceramic tile is endowed with more uniform gloss.

The application relates to the field of binders, and discloses a silicon material binder and a preparation method thereof. The silicon material binder comprises: 100 parts by weight of silicon powder; 3-5 parts by weight of silica sol; 40-60 parts by weight of a solvent; 1-3 parts by weight of a silane coupling agent; 1-3 parts by weight of a thickening agent; 5-10 parts by weight of modified nano-alumina; and 2-5 parts by weight of an organic silicon prepolymer. The modified nano-alumina is nano-alumina treated by a silane coupling agent KH-550, and has a particle size of 10-30 nm. The organic silicon prepolymer is a prepolymer prepared from methyl triethoxysilane and dimethyl diethoxysilane at a molar ratio of 1:(0.8-1.1), and has a weight average molecular weight of 2000-5000. The silicon material binder has good high-temperature compactness and thermal stability, and the silicon material binder has good initial bonding strength.

The invention relates to the field of binders, and discloses a silicon material binder and a preparation method thereof. The silicon material binder comprises: 100 parts by weight of silicon powder; 3-5 parts by weight of silica sol; 40-60 parts by weight of a solvent; 1-3 parts by weight of a silane coupling agent; 1-3 parts by weight of a thickening agent; 5-10 parts by weight of modified nano aluminum oxide; 2 to 5 parts by weight of an organosilicon prepolymer; the modified nano aluminum oxide is nano aluminum oxide subjected to surface treatment by a silane coupling agent KH-550, and the particle size of the modified nano aluminum oxide is 10-30nm; the organic silicon prepolymer is a prepolymer prepared from methyl triethoxy silane and dimethyl diethoxy silane according to a molar ratio of 1: (0.8 to 1.1), and the weight-average molecular weight of the organic silicon prepolymer is 2000 to 5000. The silicon material binder provided by the invention has good high-temperature compactness and thermal stability, and has relatively good initial bonding strength.

According to the high-reflection super-amphiphobic powder coating and the preparation method, the preparation process is simple and easy to control, no extra equipment needs to be used, and the problems that in the prior art, the sunlight reflectivity is not high enough, the surface is prone to contamination, and preparation is complex are effectively solved. The high-reflection super-amphiphobic powder coating comprises a long-chain fluorine-containing silane coupling agent with low surface energy, ethanol and pigment nanoparticles. The long-chain fluorine-containing silane coupling agent is perfluorooctyltrichlorosilane, perfluorooctyltrichlorosilane, perfluorooctyltriethoxysilane, polydimethylsiloxane, dimethyl diethoxy silane, methyl triethoxy silane or hexadecyl trichlorosilane, and the fluorine-containing silane coupling agent can be a fluorine-containing silane coupling agent, a fluorine-containing silane coupling agent, a fluorine-containing silane coupling agent, a fluorine-containing silane coupling agent, a fluorine-containing silane coupling agent, a fluorine-containing silane coupling agent, a fluorine-containing silane coupling agent and a fluorine-containing silane coupling agent. The pigment and filler nanoparticles are titanium dioxide, barium sulfate, aluminum oxide, barium sulfate, calcium carbonate, silicon dioxide or zinc oxide with the diameter of 10nm-5mu m. The volume ratio of the pigment nanoparticles to the ethanol solution to the long-chain fluorine-containing silane coupling agent is (1-5): (5-10): (0.1-0.3).

The application discloses a kind of sodium-sulfur battery electrolyte based on silane-based diluent and its preparation method and application, belong to sodium metal battery technical field.The concentration of sodium salt in the electrolyte is 1.0~4.0M, main solvent is ether polar solvent, diluent is weak polar silane-based solvent;Among them, weak polar silane-based solvent is one or more mixed in dimethyldimethoxysilane, dimethyldiethoxysilane, methyltriethoxysilane and tetraethyl silicate.The weak polar silane-based solvent of light weight is used as electrolyte diluent in the application, can effectively reduce the overall concentration of electrolyte, reduce the consumption of sodium salt;Sodium-sulfur battery electrolyte prepared with the diluent can effectively inhibit the dissolution and shuttle effect of polysulfide.

The present invention discloses a polyethylene naphthalate film with high light transmittance and a preparation method thereof. The surface of the PEN film is subjected to plasma treatment; dimethyldiethoxysilane, vinyltrimethoxysilane, phenyltrimethoxysilane, diphenyldimethoxysilane and a solvent are mixed, and hydrolysis and condensation are carried out under the action of a catalyst to obtain a phenylvinyl silicone resin sol; a high-boiling solvent is used to displace ethanol in the phenylvinyl silicone resin sol, and filtration is carried out to obtain a high-transparency silicone resin solution; the high-transparency silicone resin solution is coated on the surface of the plasma-treated PEN film, and baking is carried out. The PEN film has excellent light-transmitting performance, and also has excellent heat resistance and dimensional stability, and can be used as an ITO base film, a support film for a liquid crystal display polarizer, and other fields. The method is simple, easy to operate, and the raw materials used are non-toxic and easily available, and a PEN optical-grade film with high cost performance can be prepared.

The present invention relates to the technical field of PVC materials, Disclosed are a PVC toughening agent, and a high-toughness PVC material and a preparation method therefor and a use thereof. The PVC toughening agent of the present invention is obtained by blending an organosilicon oligomer, surface-activated nano-calcium carbonate, oxidized polyethylene wax, and polyacrylic resin, wherein the mass ratio of the organosilicon oligomer to the surface-activated nano-calcium carbonate to the oxidized polyethylene wax to the polyacrylic resin is 3:2-3:1.5-2.5:3-4. The organosilicon oligomer is an ethoxy-containing organosilicon oligomer obtained by polymerizing methyltriethoxysilane, dimethyldiethoxysilane, and phenyltriethoxysilane. The high-toughness PVC material of the present invention has good impact performance and low-temperature air bending performance, and can be widely applied to low-temperature environments, especially the preparation of the high-toughness PVC electrical sleeve.

The application relates to the technical field of silicone coating preparation, and discloses a preparation method and application of transparent silicone coating. The preparation method comprises the following steps: mixing tetraethyl orthosilicate, methyl triethoxysilane, phenyl trimethoxysilane, dimethyl diethoxysilane, chloropropyl triethoxysilane and KH560 according to a specific proportion to obtain a silicone solution; dropping mixed acid liquid into the silicone solution while stirring, hydrolyzing and polycondensing to obtain a silicone resin; mixing silicone modified hydroxyl acrylic resin, polyester resin, isocyanate curing agent, dispersant, specific transparent filler, light-resistant and oxidation-resistant auxiliary agent, defoaming agent and water-based solvent according to a specific proportion, grinding and filtering to obtain silicone modified hydroxyl acrylic resin coating; and mixing 100 parts of the silicone resin and 20-100 parts of the silicone modified hydroxyl acrylic resin coating to obtain transparent silicone coating. The coating has good adhesion and adhesion to photovoltaic substrates, high hardness and good wear resistance.

The invention relates to the technical field of organosilicone materials, in particular to organosilicone gel capable of being cured at the normal temperature and a preparation method and application thereof.The organosilicone gel comprises an initiator, a cross-linking agent, a catalyst, a tackifier and modified organosilicone resin, the initiator is a water-soluble redox system initiator, and the cross-linking agent is a water-soluble polycarboxylate water-soluble polycarboxylate water-soluble polycarboxylate water-soluble polycarboxylate water-soluble polycarboxylate water-soluble polycarboxylate water-soluble polycarboxylate water-soluble polycarboxylate. The modified organic silicon resin comprises an epoxy-organic silicon copolymer and a curing agent, and the molar ratio of the epoxy-organic silicon copolymer to the curing agent is (1-3): (1-1.5); the epoxy-organosilicon copolymer comprises a silane monomer containing a benzyl group and dimethyl diethoxy silane, and the curing agent is aliphatic polyamine. The prepared organosilicone gel is short in curing time and can be cured at normal temperature, and the weather resistance and water resistance of the organosilicone gel are improved.

The application provides a silicone-based long-acting anti-caking agent for hymexazol soluble powder and a preparation method thereof, and belongs to the technical field of hymexazol soluble powder; the preparation method comprises an epoxy-modified organosiloxane mixing step; in the epoxy-modified organosiloxane step, phenyltriethoxysilane, dimethyldiethoxysilane and 3-glycidyl ether oxypropyl triethoxysilane are mixed, and then deionized water and a hydrochloric acid solution are added; after uniform stirring, hydrolysis polycondensation is carried out at 50-80 DEG C for 2-4 h; condensation is carried out at 120-140 DEG C and under reduced pressure of-0.08 to-0.09 MPa for 1-2 h; after cooling and sieving, the obtained white powder is the epoxy-modified organosiloxane; the anti-caking agent prepared by the application has good anti-caking performance, high suspensibility and excellent fluidity.

The invention belongs to the technical field of organic silicon chemical products, and particularly relates to a preparation method of a vinyl double-end socket. Comprising the following steps: in a tubular fixed bed catalytic continuous reactor filled with a supported catalyst, carrying out nucleophilic substitution reaction on dimethyldichlorosilane and dimethyldiethoxysilane under the action of the supported catalyst to obtain a dimethyl ethoxychlorosilane intermediate; the method comprises the following steps: mixing liquid sodium with a solvent, carrying out Wuichi reaction on the mixture, a dimethyl ethoxy chlorosilane intermediate and vinyl chloride in a tubular continuous sodium condensation reactor, adding ethanol into the reacted mixture for treatment, carrying out solid-liquid separation to obtain a sodium salt mainly containing sodium chloride and a mixed solution, and carrying out rectification separation on the mixed solution to obtain the vinyl single end socket. And carrying out continuous hydrolysis reaction on the vinyl single end socket to obtain the vinyl double end socket. The tubular continuous technology is used, so that the safety of the whole production process is effectively improved, and the operation safety risk is reduced while the sodium utilization rate is improved.

The invention provides a silicon-containing zinc acrylate hydrogel resin antifouling coating as well as a preparation method and application of the silicon-containing zinc acrylate hydrogel resin antifouling coating, and belongs to the technical field of antifouling coatings. The anti-fouling coating comprises the following components in parts by weight: 40-60 parts of zinc acrylate resin, 3-6 parts of hydroxyl silicone oil, 3-5 parts of dimethyldiethoxysilane, 2-4 parts of a catalyst, 1-3 parts of a cross-linking agent, 1-2 parts of a defoaming agent and 1-2 parts of an anti-fouling agent. According to the invention, silicon-containing resin, acrylic resin and zinc ions are mutually crosslinked and organically combined to form a hydrogel resin system with a unique dynamic surface structure; due to the nanoscale roughness and the hydrophilic property of the surface, the initial adhesion force of biological adhesion can be effectively reduced; the metabolic process of biological cells can be interfered by continuous release of zinc ions, so that the maturation and expansion of a biological membrane are inhibited; the synergistic effect of the dual mechanisms enhances the antifouling property and tensile strength of the hydrogel.

The invention provides high-weather-resistance organic silicon resin and a preparation method and application thereof, and relates to the technical field of organic silicon high polymer materials, and the preparation method comprises the following steps: carrying out condensation polymerization on a pre-hydrolyzed silane monomer under the catalysis of zinc / cobalt acetylacetonate to obtain the high-weather-resistance organic silicon resin; wherein the silane monomer is prepared from the following components: methyl triethoxy silane, phenyl trimethoxy silane, dimethyl diethoxy silane, vinyl trimethoxy silane and epoxy propyl diethoxy silane, and the silane monomer is prepared from the following components: methyl triethoxy silane, phenyl trimethoxy silane, dimethyl diethoxy silane, vinyl trimethoxy silane and epoxy propyl diethoxy silane. The technical problems of high curing temperature, high energy consumption, high cost, VOC emission, poor adhesive force and poor weather resistance of organic silicon resin in the prior art are solved, and the technical effects of air-drying curing at normal temperature, excellent weather resistance and better mechanical strength are achieved.

The invention relates to a silicone rubber composition, modified silicone rubber and a preparation method thereof. The silicone rubber composition comprises the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 10-60 parts of fumed silica, 1-20 parts of a silicon-containing compound, 0.1-6 parts of peroxide and 0.1-10 parts of rare earth oxide, wherein the silicon-containing compound is selected from one or more of hydroxyl silicone oil, diphenyl silanediol, dimethyl dimethoxy silane, dimethyl diethoxy silane, methyl phenyl dimethoxy silane, methyl phenyl diethoxy silane and hexamethyl disilazane, and the silicon-containing compound is selected from one or more of hydroxyl silicone oil, diphenyl silanediol, dimethyl dimethoxy silane, dimethyl diethoxy silane, methyl phenyl diethoxy silane and hexamethyl disilazane; the rare earth element in the rare earth oxide is selected from one or more of La, Ce or Sm. The silicone rubber composition provided by the invention can improve the tensile strength and the retention rate of the elongation at break of the silicone rubber after high-temperature aging.

The application discloses a kind of water-based environmental protection inks and preparation method and application in printing, it is related to ink field.The application is when preparing water-based environmental protection ink, it is mixed and reacted to obtain modified nanometer titanium dioxide by grafting 3-butene-1-alcohol after nanometer titanium dioxide, methyl acrylate trifluoroethyl ester and maleic anhydride are mixed evenly;It is reacted after dimethyl diethoxysilane, 1,1,3,3-tetramethyl disiloxane and hydroxypropyl pentamethyl disiloxane, and grafting 2-(2'-hydroxy-3'-methyl allyl-5'-methyl phenyl) benzotriazole to obtain modified siloxane;It is reacted to obtain modified polyurethane emulsion by grafting 2,2-dimethylol propionic acid and 1,4-butanediol after isophorone diisocyanate, modified siloxane, polyhexanedioic acid neopentyl glycol ester diol;Then modified polyurethane emulsion, modified nanometer titanium dioxide and each component are mixed evenly to obtain water-based environmental protection ink.The water-based environmental protection ink prepared by the application has excellent adhesion, water resistance, anti-aging and antifouling property.

This invention discloses a room-temperature curing, adjustable-hardness nano-silica sol-reinforced organosilicon coating and its preparation method. The raw materials for this room-temperature curing, adjustable-hardness nano-silica sol-reinforced organosilicon coating include: nano-silica sol, methyltriethoxysilane, dimethyldiethoxysilane, acetic acid, and deionized water. The solid content of the nano-silica sol is 20wt%-40wt%, the pH of the nano-silica sol is 8-10, and the particle size of the nano-silica sol is 5nm-30nm. The mass ratio of nano-silica sol, methyltriethoxysilane, dimethyldiethoxysilane, acetic acid, and deionized water is 100:(66-112):(20-66):2.6:19. The room-temperature curing, adjustable-hardness nano-silica sol-reinforced organosilicon coating of this invention exhibits good storage stability, requires no heating during the curing process, and produces a clear and bright organosilicon coating with an adjustable pencil hardness within the range of 5H-8H.

The invention discloses a block copolymer well wall reinforcer rich in positive charge anchor points as well as a preparation method and application thereof, and belongs to the technical field of new materials of drilling engineering. The well wall reinforcer is a block copolymer formed by generating a silicon-oxygen bond polymer through an acid-catalyzed hydrolytic polymerization reaction and sequentially grafting a hydrophilic group and introducing a quaternary ammonium salt group. The silicon-oxygen bond polymer is prepared from silane monomers including dimethyldichlorosilane, dimethyldimethoxysilane or dimethyldiethoxysilane through a hydrolytic condensation reaction. The preparation method comprises the following steps: preparing the silicon-oxygen bond polymer from the silane monomers including dimethyldichlorosilane, dimethyldimethoxysilane or dimethyldiethoxysilane; the hydrophilic group is polyethylene glycol or polypropylene glycol, and the quaternary ammonium salt group is dimethyl diallyl ammonium chloride, hydroxyethyl trimethyl ammonium chloride or hydroxyethyl triethyl ammonium chloride. The well wall reinforcing agent is good in well wall adsorbability and chemical stability, can keep efficient leaking stoppage performance in a high-temperature and high-pressure environment, and effectively reduces scouring erosion of drilling fluid to a well wall; the drilling fluid is excellent in performance in low-permeability fractured oil reservoirs and pore type and fractured leakage stratums, and the safety and efficiency of drilling operation are improved.

The application relates to the field of high-molecular composite membrane materials, in particular to an interface joint reinforced composite membrane and a preparation method and application thereof. The preparation method comprises the following steps: S1, carrying out gas phase hydration treatment on Silicalite-1 particles which are surface modified by a silane coupling agent in a predetermined temperature and humidity environment, to obtain modified Silicalite-1 particles carrying a water molecule induced layer; S2, adding the modified Silicalite-1 particles carrying the water molecule induced layer into a polydimethyl diethoxysilane (PDMDES) prepolymer solution, and carrying out ultrasonic treatment in a 0-10 DEG C environment, to obtain a composite membrane solution; and S3, coating the composite membrane solution on the surface of a base film through a blade coating process, and carrying out step-by-step solidification in an oven, to obtain the interface joint reinforced composite membrane. The prepared interface joint reinforced composite membrane has excellent pervaporation separation performance on the basis of maintaining good thermal stability and reducing non-selective leakage channels.