553 results about "Methyl silicone" patented technology

The invention relates to a mildew-proof silicone sealant with high curing rate and high adhesive strength, and belongs to the technical field of adhesives. The anti-mildew coating is prepared from alpha, omega-dihydroxy polydimethylsiloxane, dimethyl silicone oil, fumed silica, phenoxy resin coated nano calcium carbonate, a modified hydroxypropyl-gamma-cyclodextrin loaded mildew preventive, dibutyltin dilaurate, methyltrimethoxysilane and a curing accelerator. According to the mildew-proof silicone sealant with the high curing rate and the high adhesive strength, the surface drying time is 9-13 minutes, the 24-hour curing depth is 6.3-7.2 mm, the adhesive strength is 3.0-3.6 MPa, the tensile strength is 5.8-6.4 MPa, the shear strength is 3.0-3.9 MPa, the elongation at break is 410-457%, and the mildew-proof grade is 0 grade in 30 days, 60 days, 180 days and 360 days.

The invention discloses a fine circuit pattern anti-diffusion agent as well as a preparation method and a use method thereof, and relates to the technical field of printed circuit board manufacturing. The fine circuit pattern anti-diffusion agent is prepared from the following components in percentage by mass: 0.05 to 0.3 percent of an oleophobic agent, 0.1 to 0.6 percent of a bonding agent, 0.2 to 1.5 percent of an adhesion promoter, 0.5 to 4.0 percent of a wetting agent, 0.5 to 5.0 percent of a cosolvent and the balance of water, the oleophobic agent is a fluorophenylethylamine derivative, the bonding agent is a carbonyl chloride derivative, the adhesion promoter is a sulfur heterocyclic alkane derivative, the wetting agent is a methylsiloxane silane derivative, and the cosolvent is a sulfonyl ketone derivative. According to the fine circuit pattern anti-diffusion agent, an organic layer can be formed on the copper surface of a circuit board, the binding force between the copper surface and printing ink is enhanced, jet printing printing ink is prevented from diffusing on the copper surface, and the product percent of pass of a jet printing solder mask process is improved.

The invention belongs to the technical field of marine organism fouling protection, and particularly discloses a self-repairing coating for preventing biological fouling and a preparation method and application thereof, and the preparation method comprises the following steps: S1, adding polydimethylsiloxane and aliphatic diisocyanate into an organic solvent according to a molar ratio of 1: (1.0-3.0), continuously stirring for more than 0.5 h, and standing to prepare an organosilicon polymer solution; the polydimethylsiloxane is aminopropyl double end capped polydimethylsiloxane, and the polydimethylsiloxane is an aminopropyl double end capped polydimethylsiloxane; s2, adding methyl silicone oil into the organic silicon polymer solution, and continuously stirring for more than 0.5 hour to prepare a transparent organic silicon prepolymer; and S3, uniformly coating the surface of a substrate with the prepolymer prepared in the step S2, and standing to obtain the self-repairing coating for preventing biological fouling. Complete covering and damage self-repairing of a lubricating layer on the surface of the coating can be achieved, attachment and growth of fouling organisms are effectively prevented, and the coating is endowed with long-acting antifouling performance.

The invention relates to the technical field of foaming materials, and particularly discloses a silicone rubber foaming material and a preparation method thereof. The silicone rubber foaming material is prepared from the following raw materials in parts by weight: 1-60 parts of hydroxyl silicone oil, 10-60 parts of vinyl silicone oil, 1-15 parts of hydrogen-containing silicone oil, 1-5 parts of methyl silicone oil, 0.5-1 part of an inhibitor, 0.25-0.5 part of a platinum catalyst, 5-15 parts of modified polysiloxane and 10-30 parts of white carbon black. The invention also provides a preparation method of the composition. Compared with the prior art, the silicone rubber foaming material prepared by the invention does not contain halogen and other harmful substances, does not cause secondary pollution in a combustion process, and can realize efficient balance of mechanical properties and flame retardant properties.

The invention discloses a wear-resistant high-gloss nano liquid, a wear-resistant high-gloss ceramic tile and a preparation method of the wear-resistant high-gloss ceramic tile, and belongs to the technical field of ceramic manufacturing. The wear-resistant high-gloss nano liquid at least comprises a component A, a component B and a component C which are independently subpackaged, wherein the component A comprises large-particle silica sol, boric acid, sodium methyl silicate, carboxymethyl cellulose sodium, a boronizing stabilizer and the balance of water; the component B comprises a boronizing stabilizer and the balance of water-based modified silicone oil; and the component C is wax emulsion. Through systematic material and process innovation, the ceramic tile which is high in gloss, strong in antifouling property, durable in wear resistance and high in transportation performance is prepared, and the market requirements of surface treatment materials which are high in performance, low in cost and easy to transport are met.

The preparation method of the CO2 thickening-downmixing-tracing nano carbon needle comprises the following steps: step 1, modifying a nitrogen-doped activated carbon quantum dot by adopting a silane coupling agent to obtain a modified activated carbon quantum dot; 2, mixing methyl silicone oil, a silane coupling agent and a thickening functional monomer to obtain a mixture, and activating; adding a catalyst and fully reacting to obtain a fluorine-containing siloxane polymer; 3, mixing the activated carbon quantum dots obtained in the step 1 and the fluorine-containing silane polymer solution obtained in the step 2, and fully reacting to obtain the CO2 thickening-downmixing-tracing nano carbon needle; according to the nano carbon needle, the viscosity of supercritical carbon dioxide is increased, the miscible phase pressure is reduced, meanwhile, in-situ emulsification tackifying can be carried out in high-water-content and high-permeability pores, and CO2 pressure driving-tracing-burying integration of an oil and gas field can be achieved, so that a win-win mode of green low-carbon development and economic benefits is constructed.

The invention discloses geopolymer cement based on coal gangue activation reaction as well as a preparation method and application thereof, and relates to the technical field of building materials. The invention relates to a coal gangue concrete, which is prepared from the following raw materials in percentage by mass: 50 to 70 percent of activated coal gangue powder, 5 to 15 percent of alkali activator, 10 to 30 percent of auxiliary cementing material and water, wherein the water accounts for 30 to 40 percent of the total mass of the activated coal gangue powder, the alkali activator and the auxiliary cementing material. Through a composite activation process of medium-temperature calcination decarburization and superfine grinding, the activity of silicon-aluminum components in the coal gangue is effectively excited, the reaction efficiency is remarkably improved, the mixing amount of the coal gangue reaches 50%-70%, the resource utilization rate of solid waste is greatly increased, and efficient activation and resource utilization of the coal gangue are achieved. By adopting the methyl sodium silicate and sodium silicate composite activator, the reaction rate and the product structure are regulated and controlled, and the workability and the setting and hardening behaviors of slurry are improved, so that the obtained geopolymer cement has relatively high early and later strength and excellent durability.

The invention relates to the field of coatings, and discloses a self-cleaning nano-coating glass plate and a preparation method and application thereof.The nano-coating is prepared from organic silicon resin, epoxy resin, modified nano titanium dioxide, long-chain alkyl methyl silicone oil, a curing agent and a diluent; the modified nano titanium dioxide is prepared by grafting a modified silane coupling agent and nano titanium dioxide, wherein the modified silane coupling agent is prepared by reacting a modified phosphorus-containing antibacterial monomer with vinyltriethoxysilane; the modified phosphorus-containing antibacterial monomer is prepared by reacting eugenol with N-bromosuccinimide, then reacting with 2-amino-4-methylthiazole, further reacting with diphenyl phosphinyl chloride, and reacting the obtained phosphorus-containing antibacterial monomer with 1, 1, 3, 3-tetramethyldisiloxane; the long-chain alkyl methyl silicone oil is prepared by using octamethylcyclotetrasiloxane, dodecyl methyl dimethoxy silane and hexamethyldisiloxane as raw materials, and the prepared nano coating has a super-hydrophobic surface and also has excellent antibacterial activity, wear resistance and flame retardance.

The invention provides a water-resistant building gypsum-based material and a preparation method thereof. The material comprises a building gypsum base body, a hydrophobic film is cured on the surface of the building gypsum base body, and the hydrophobic film is formed by curing waterproof liquid; the building gypsum base body is prepared from four components including desulfurized building gypsum, blast furnace slag, calcium oxide and water, the water-binder ratio is 0.5-0.6, the mass ratio of the blast furnace slag to the desulfurized building gypsum is (1-5): (5-9), and the mass of the calcium oxide is 2%-10% of that of the blast furnace slag; the waterproof liquid comprises water, sodium methyl silicate, tetraethoxysilane, dimethyl silicone oil, sodium hydroxide and sodium silicate. According to the preparation method, a proper waterproof treatment mode is selected according to the size of a workpiece. The blast furnace slag and the calcium oxide are introduced into the desulfurized building gypsum formula, the calcium oxide can effectively excite the activity of the blast furnace slag in a building gypsum matrix, so that the water resistance of a building gypsum-based material is improved, the water resistance of the material is further improved by the waterproof liquid, and meanwhile, the material is endowed with hydrophobicity.

The invention discloses a high-bonding-strength magnesium adhesive as well as a preparation method and application thereof. The high-bonding-strength magnesium adhesive comprises the following components: 160-185 parts of light calcined magnesia, 40-54 parts of magnesium chloride, 36-46 parts of magnesium sulfate, 46-60 parts of water, 6-14 parts of soybean protein powder, 1-3 parts of a retarder, 2-6 parts of talcum powder, 3-5 parts of polyvinyl alcohol and 4-8 parts of a waterproof agent. The waterproof agent comprises sodium methylsilanolate and sodium silicate in a mass ratio of (2-5): 1. The soybean protein is used as the modifier and can be extracted with the magnesium adhesive to form a network interpenetrating structure, so that the number of structural voids and the flatness of the magnesium adhesive are improved, a flat and compact gel system is formed, and the bonding performance of the magnesium adhesive is effectively 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 application relates to the technical field of building materials, and discloses a permeable crystalline self-healing waterproof material for concrete self-waterproofing, which is prepared from the following raw materials in parts by weight: 20-30 parts of sodium-based bentonite, 20-50 parts of sodium methyl silicate, 4-6 parts of a penetrating agent, 8-12 parts of a sulphoaluminate cement, 15-18 parts of a silicone zirconium, and 2-5 parts of a complexing agent; the complexing agent is composed of 2-[3-(4-pentylphenyl)prop-2-enylamino]benzoic acid and sodium ethylenediaminetetraacetate. The above technical scheme solves the problem of low mechanical performance and waterproofness of concrete in the prior art.

The invention relates to a soft-focus moisturizing and make-up spray product and a preparation method thereof. The product comprises water, a humectant, a coalescing agent and functional powder, wherein the functional powder is at least one of silica, a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer. The preparation method comprises the following steps: firstly, adding the water and the humectant into a reactor, adding part of the pH regulator and the preservative, uniformly stirring and mixing at 25-35 DEG C at the speed of 100-600rpm, then adding the coalescing agent, and stirring at the speed of 200-600rpm until the coalescing agent is completely dissolved without particles. The preparation method comprises the following steps: pre-mixing the essence and the solubilizer, adding the pre-mixed essence and solubilizer into a reactor, uniformly dispersing at 100-600rpm, finally adding the functional powder, stirring until the functional powder is uniformly dispersed, adding the residual pH regulator, and regulating the pH value of the system to 4.0-8.5. By adding the soft-coke oil-control powder, the product realizes oil control and moisture retention, maintains the makeup for a long time, presents a high-grade soft-fog makeup effect, and is non-sticky in formed film and good in waterproofness.

The invention discloses a silicon nitride ceramic material and a preparation method and application thereof, and the preparation method of the silicon nitride ceramic material comprises the following steps: providing slurry which comprises a silicon-containing raw material; the silicon-containing raw material comprises silicon powder, an inhibitor and an inorganic solvent in a mass ratio of 100: (0.1-10): (10-100), and the inhibitor comprises one or more of an alcohol compound, organic acid, methyl silicone oil and a silane coupling agent; preparing a green body from the slurry; and the green body is subjected to nitriding treatment and sintering treatment in sequence. The silicon powder is used as a main source of a silicon element, and hydrogen in hydroxyl in the inhibitor is connected with oxygen in silicon dioxide formed on the surface of the silicon powder due to oxidation to form a hydrogen bond, so that the surface of the silicon powder is coated with the inhibitor to form a complex for modification, and continuous hydrolysis of the silicon powder in an inorganic solvent such as water is inhibited; and the silicon nitride ceramic material with few impurities is obtained by matching nitriding treatment and sintering treatment, so that the thermal conductivity is improved.

The invention relates to the technical field of cosmetics, in particular to a high-concealing makeup holding air cushion and a preparation method thereof.The high-concealing makeup holding air cushion is characterized in that a film forming agent in the high-concealing makeup holding air cushion is prepared from 5-7 parts of trimethylsiloxy silicate, 0.3-0.7 part of isododecane and 2-3 parts of acrylic acid (ester) / polytrimethylsiloxane methacrylate copolymer; the coloring agent is prepared from the following raw materials in parts by weight: 5 to 7 parts of titanium dioxide, 0.8 to 1.2 parts of silica, 5 to 7 parts of mica powder, 0.4 to 0.8 part of CI 77492, 0.8 to 1.2 parts of aluminum hydroxide, 0.4 to 0.6 part of CI 77491, 0.8 to 1.2 parts of triethoxyoctyl silane and 0.3 to 0.5 part of CI 77499; the particle sizes of the titanium dioxide at least comprise any two of 4 nm, 30-50 nm and 200-260 nm; the air cushion has the advantages that the makeup holding time of the air cushion is prolonged, and the concealing effect is improved.

The invention relates to the field of machines, in particular to a solvent-free organic silicon pressure-sensitive adhesive and preparation thereof.The solvent-free organic silicon pressure-sensitive adhesive is composed of 100 parts of methyl MQ silicon resin, 30-150 parts of linear polysiloxane, 10-180 parts of branched chain polysiloxane, 1-5 parts of an additive, 1-10 parts of a cross-linking agent and 0.1-1 part of an inhibitor. The pressure-sensitive adhesive does not contain an organic solvent, is environment-friendly, and can well infiltrate a pasted object.

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.

The invention relates to a siloxane polycarbonate rare earth modified composite material and a preparation method thereof. Polymethylsiloxane microspheres are prepared through a one-step hydrolysis-polycondensation method, a CeO2 coated PMSQ core-shell structure is constructed in combination with a chemical precipitation technology, uniform dispersion of cerium oxide nanoparticles is achieved, and the problems of agglomeration and interfacial compatibility of traditional CeO2 nanoparticles are solved. The tensile strength of the prepared composite material reaches 33 MPa, the ultraviolet absorption rate reaches 80% after 8 h, the limit oxygen index is 28.5%, and the flame retardant property reaches the V-1 level. The method is suitable for the fields with high weather resistance requirements, such as new energy automobiles and photovoltaics.

The embodiment of the invention relates to the technical field of insulating adhesives, and discloses an insulating sealing coating adhesive which comprises 60-80 parts of a modified styrene-butadiene-styrene block copolymer, 0.3-1 part of a ketimine curing agent, 2-8 parts of an aromatic amine curing agent, 3-8 parts of methyl silicone oil and 12-26 parts of petroleum ether, wherein the modified styrene-butadiene-styrene block copolymer is obtained by epoxidation of a styrene-butadiene-styrene block copolymer (SBS), the molecular weight of the styrene-butadiene-styrene block copolymer is 7000-11000, the substance amount fraction of a PB end (polybutadiene chain segment) is 70-85%, and the ratio of a branched chain structure to a straight chain structure in the PB end is 1: 2-1: 3. The insulation sealing coating adhesive has the characteristics of high reliability and uniform coating in multiple axial directions, especially in the vertical direction (namely the z-axis direction) through the structural characteristics of the insulation sealing coating adhesive and the compounding of the insulation sealing coating adhesive and a multi-element curing agent, is convenient to spray and is beneficial to application to precise components.

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.

Disclosed are a CO2 gas-soluble silicon nanofluid and a preparation method therefor. The method includes: taking nano-silica and grafting a silane coupling agent to obtain modified nano-silica; taking methylsiloxane, fluorosilicone, aminosiloxane and an end-capping agent, and performing polymerization under the action of a catalyst to obtain a functionalized network siloxane; and taking the modified nano-silica and the functionalized network siloxane, uniformly mixing, then heating for a Michael addition reaction, and obtaining the gas-soluble silicon nanofluid after the reaction is completed. The gas-soluble silicon nanofluid microscopically forms a network structure with modified nano-silica as a cross-linking point and polysiloxane as a chain; macroscopically, the effect of viscosity increase of the supercritical carbon dioxide is significant, and the dissolving pressure is low. The interfacial tension and the miscibility pressure between the crude oil and CO2 are significantly reduced.

The invention provides a marine antifouling coating with an active-passive synergistic mechanism and a preparation method thereof.The preparation method comprises the steps that a porous template, ruthenium selenide and absolute ethyl alcohol are mixed and stirred to obtain a mixed solution, and the mixed solution is continuously heated to obtain mixed powder; placing the mixed powder and selenium powder in two crucibles respectively, and placing the crucibles in a tubular furnace for heating and calcining to obtain template-loaded ruthenium selenide; soaking the template-loaded ruthenium selenide in a concentrated alkali solution, heating to remove the porous template, and filtering, washing and drying after etching to obtain porous ruthenium selenide; the preparation method comprises the following steps: dissolving vinyl-terminated polydimethylsiloxane, a photoinitiator and polymercaptopropyl methyl siloxane in cyclohexane to obtain a coating base solution, adding porous ruthenium selenide into the coating base solution, uniformly stirring, carrying out ultrasonic treatment, and carrying out vacuum defoaming to obtain a coating solution; and coating the coating liquid on the surface of a base material, and curing after ultraviolet irradiation to obtain the marine antifouling coating with an active-passive synergistic mechanism.

The invention discloses a low-damping PVC-U electrical conduit and a processing technology thereof, and belongs to the technical field of conduit preparation. The low-damping PVC-U electrical conduit is prepared from the following components in parts by weight: 70 to 80 parts of PVC resin, 30 to 42 parts of light calcium carbonate, 8 to 15 parts of ethylene-vinyl acetate copolymer, 0.5 to 1 part of ethylene bis stearamide, 3 to 6 parts of epoxy compound and 4 to 7 parts of compound stabilizer, the preparation method comprises the following steps: preparing an epoxy compound from ethyl benzoylacetate, 2-(trimethylsilyl) phenyl trifluoromethane sulfonate, p-toluenesulfonyl azide, p-aminophenol, p-toluenesulfonyl chloride, iodobenzene diacetic acid and rhodium diacetate as raw materials, and preparing the compound stabilizer from 2-(2-aminoethoxy) ethanol, 4-fluorophenol and xylene alkane diisocyanate as raw materials. The PVC-U electrical conduit prepared from the substances has the advantages of low damping, excellent stability, excellent mechanical property and excellent aging resistance.

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 invention discloses basalt fiber high-performance cement concrete with low cement consumption as well as a preparation method and application of the basalt fiber high-performance cement concrete, and belongs to the technical field of highway bridge construction. The basalt fiber high-performance cement concrete with low cement consumption is prepared from the following raw materials in parts by mass: 402 parts of cement, 160 parts of water, 51 parts of fly ash, 18 parts of silica fume, 1102 parts of broken stone, 705 parts of sand, 4.05 parts of a polycarboxylate superplasticizer, 3.3 parts of sodium methyl silicate and 2.0-3.5 parts of modified short-cut basalt fiber. The cement, the fly ash, the silica fume, the gravel material, the polycarboxylate superplasticizer, the modified short-cut basalt fiber and the like are matched to serve as the bridge deck pavement impervious concrete, and the strength, the impermeability, the durability and the safety of bridge deck pavement are greatly enhanced.

The invention relates to a medical organic silicon pressure-sensitive adhesive with antibacterial performance and a preparation method thereof, and the preparation method comprises the following steps: firstly mixing 2-5 parts of a surfactant and 0.5-1.5 parts of an antibacterial group, and then uniformly stirring at 2000-2500rpm; and adding a mixture of 10-20 parts of methyl vinyl silicone rubber, 0.5-2 parts of hydrogen-containing silicone oil, 40-50 parts of a solvent, 5-20 parts of vinyl MQ silicon resin, 20-35 parts of methyl MQ silicon resin, 0.04-0.4 part of a platinum catalyst and 0.03-0.3 part of an inhibitor into the reactor, and stirring for 4-6 hours to prepare the medical organic silicon pressure-sensitive adhesive with the antibacterial property. The medical organic silicon pressure-sensitive adhesive with the antibacterial property, prepared by the method, has good antibacterial property and cohesiveness, and is simple in process, high in production efficiency, low in cost and convenient to popularize and apply.

The invention provides a fire-retardant coating and a preparation method thereof, belonging to the technical field of coatings. The coating comprises components such as organosilicon-modified epoxy resin, ammonium polyphosphate, melamine cyanurate, modified carbon nanotubes, cage-type silsesquioxane, zirconium boride-modified MOF-808, modified nano-magnesium hydroxide, rutile titanium dioxide, mica powder, vinyl polydimethylsiloxane-polymethylsiloxane silsesquioxane cross-linked polymer, methylsilanol-silicate cross-linked polymer, dimethylthiotoluenediamine curing agent, etc. The modified carbon nanotubes are carbon nanotubes modified by polyoxyethylene fatty acid esters, and the modified nano-magnesium hydroxide is nano-magnesium hydroxide modified by stearic acid. The components are used in combination to have good fire resistance, long fire resistance time, good weather resistance, and long-term performance is not likely to be greatly reduced.

The invention discloses high-durability quick-hardening concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw materials: aluminoferrite cement, vitreous calcium aluminate clinker, a coagulant nucleation agent, a nano hybrid siliceous material, a calcium-magnesium composite expanding agent, a self-healing agent, a hydration heat regulating agent, a water reducing agent, an early strength agent, a defoaming agent, a thickening agent, a retarder, an air entraining agent and aggregate. The coagulating nucleating agent is prepared from semi-hydrated gypsum, ferrous sulfate and aluminum potassium sulfate; the nano hybrid siliceous material is prepared by reacting acidic silica sol with sodium methyl silicate at 40-60 DEG C for 1-3 hours. According to the high-durability quick-hardening concrete and the preparation method thereof, the iron aluminate cement, the vitreous calcium aluminate clinker, the coagulant nucleation agent, the nano hybrid siliceous material, the calcium-magnesium composite expanding agent, the self-healing agent and the hydration heat regulating agent are utilized to form a brand-new high-durability and high-adaptability quick-hardening system. The mechanical property, the volume stability and the durability are comprehensively superior to those of the traditional quick-hardening concrete.

A method for preparing methyl silicone resin for high-temperature mica boards includes: (1) Solution A is a mixture of methyltrimethoxysilane, dimethyldimethoxysilane, and epoxysilane coupling agent, which account for 87%-95%, 3%-7%, and 2%-6% of the total amount of A, respectively; (2) Adding 0.5-1.0 times the amount of benzene solvent, 0.2-0.3 times the amount of isopropanol, and adding 0.5%-1% of the total amount of A acidic catalyst to obtain solution B; (3) Heating B to 70℃-80℃, and uniformly adding deionized water, and adding... The time is controlled at 2-3 hours. After the addition is completed, continue stirring for half an hour to obtain solution C. The amount of deionized water is 40%-50% of the total amount of A. (4) Transfer C to a separatory funnel and let it stand to separate into layers. The lower layer of methanol solution is purified by distillation, and the upper layer of silanol solution is washed with water until neutral to obtain solution D. (5) Heat D and reflux for condensation reaction. Maintain the temperature at 130℃-140℃ for half an hour, then cool to room temperature and add benzene solvent to form a 50%-60% concentration of methyl silicone resin for high-temperature mica boards. The benzene solvent content is 40%-50%. It is environmentally friendly, has a simple process, excellent bending resistance, and good moisture resistance.

The invention relates to a preparation method of a hydrolysis modified organic silicon high-temperature-resistant anticorrosive coating, and belongs to the technical field of anticorrosive coatings. The preparation method comprises the following steps: heating 1, 1 '-bis (dimethylsilyl) ferrocene, methylbenzene, chloroplatinic acid, 2, 2, 3, 3, 4, 4, 4-heptafluorobutyl acrylate and bis-(2-methylallyl) cyclooctyl-1, 5-diene ruthenium, and reacting to obtain an intermediate product 1; weighing methyltrimethoxysilane, phenyltrimethoxysilane and the intermediate product 1, uniformly stirring and mixing, slowly dropwise adding diluted hydrochloric acid, hydrolyzing, and heating to react, so as to obtain modified silicon resin; adding the modified silicon resin into petroleum ether, and adding silicone oil, an organic tin catalyst, a bis-ammonia coupling agent, filler and a curing agent to obtain the anticorrosive paint.