84 results about "Methyltrimethoxysilane" patented technology

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

The invention relates to 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.

The application provides an in-situ oriented carbon nanotube / silicon nitride nanobelt composite material and a preparation method thereof, and comprises the following steps: uniformly mixing methyltrimethoxysilane, dimethyldimethoxysilane, ethanol, water and nitric acid according to a certain proportion, and obtaining a siloxane xerogel precursor after stirring and drying; obtaining a silicon nitride nanomaterial by a carbothermal reduction reaction method under high-temperature conditions; injecting a mixed solution of ethanol, ethylenediamine and ferrocene into a tube furnace by a floating CVD method under high-temperature conditions, and growing carbon nanotubes on the surface of the silicon nitride nanobelt to obtain the in-situ oriented carbon nanotube / silicon nitride nanobelt composite material; and the application grows the carbon nanotubes on the surface of the silicon nitride nanobelt material by the floating CVD method to improve the electromagnetic shielding performance of the silicon nitride nanocomposite material, and finally, the carbon nanotube / silicon nitride nanobelt composite material with light weight, flexibility and good electromagnetic shielding performance is prepared.

The invention relates to the technical field of sealants, and particularly discloses a dealcoholization type organic silicon sealant and a preparation method thereof.The dealcoholization type organic silicon sealant is prepared from, by weight, 20-60 parts of methoxy-terminated 107 glue with the viscosity being 20000-80000 mPa.s, 0.5-20 parts of methoxy-terminated 107 glue with the viscosity being 1000-5000 mPa.s, 0.2 part of black paste and 2-10 parts of methyltrimethoxysilane, and the dealcoholization type organic silicon sealant is prepared from, by weight, 20-60 parts of methoxy-terminated 107 glue with the viscosity being 20000-80000 mPa.s, 0.5-20 parts of methoxy-terminated 107 glue with the viscosity being 1000-5000 mPa.s, 0.2 part of black paste and 2-10 parts of methyltrimethoxysilane. The sealant comprises the following components in parts by weight: 10-40 parts of nano calcium carbonate, 0.2-5 parts of a simple coupling agent, 1-7 parts of a complex coupling agent, 0.2-2 parts of chelated titanate and 0.01-0.15 part of an organic tin catalyst, and the sealant provided by the invention can be physically and chemically bonded with hydroxyl of an aluminum oxide thin layer of a micro-interface on the surface of an aluminum alloy, so that the bonding force of an oil stain interface is effectively enhanced.

The invention discloses an ammonia colorimetric sensor for detecting meat freshness. According to the sensor, cellulose aerogel is used as a sensing base material, the natural pigment hematoxylin is used as an indicator, and the natural pigment loaded bio-based ammonia colorimetric sensor is constructed by utilizing the characteristics of high porosity and large specific surface area of the cellulose aerogel and the characteristic that the hematoxylin is sensitive to the change of a pH value. And when the freshness of meat is reduced, ammonia gas and other substances can be released, so that the pH value of the environment is changed, and the color of the hematoxylin is changed, so that the putrefaction degree of food can be intuitively reflected. In order to improve the practicability of the sensor in a complex environment, methyl trimethoxy silane is used for carrying out hydrophobic modification treatment on the surface of the cellulose aerogel, and the treatment can effectively inhibit the interference of moisture on the cellulose aerogel. The invention provides a convenient, sensitive, rapid and efficient solution for detecting the freshness of the food.

This invention relates to a silicone rubber adhesive and its preparation method, belonging to the technical field of silicone rubber adhesives. The silicone rubber adhesive comprises the following components: 100 parts of hydroxyl-terminated polydimethylsiloxane and nano-calcium carbonate, of which 40 to 60 parts are nano-calcium carbonate; 2 to 3 parts of methyltrimethoxysilane; 1 to 2 parts of diisopropyl bis(ethyl acetoacetate) titanate; and 0.3 to 0.7 parts of a tackifier. The tackifier comprises compounds with the general structural formula shown in Formula I or Formula II. Compared with existing silicone rubber adhesives, the silicone rubber adhesive provided by this invention contains a tackifier with a specific structure, which can significantly improve the construction speed, meet the needs of rapid construction, and make up for the shortcomings of existing silicone rubber adhesives.

The application provides a combined silicon nitride ceramic antenna dome and a preparation method thereof, and belongs to the technical field of silicon nitride ceramic antenna dome; the preparation method of the antenna dome main dome body comprises preparation of a primary dome body and surface sealing; the preparation of the primary dome body comprises preparation of titanium sol, preparation of a blank and sintering; in the preparation of the blank, silicon powder, aluminum nitride powder, a sintering aid and sodium dodecylbenzenesulfonate are mixed, and after uniform stirring, polymethyl methacrylate and polyethylene glycol 2000 are added to obtain a mixture; the mixture is added to the titanium sol, stirred at 900-1200 rpm for 30-40 min under a nitrogen atmosphere, then ball milled for 1.8-2.2 h, methyltrimethoxysilane solution is added, and the ball milling is continued for 26-35 min, then the mixture is placed in a mold and left to stand, and the blank is obtained after drying; the antenna dome prepared by the application has low density, high strength and hardness, high toughness, low thermal conductivity and dielectric constant, and excellent rain erosion resistance.

The application provides a high-toughness methyl silicone resin and a preparation method thereof. The high-toughness methyl silicone resin comprises the following raw materials in parts by mass: 100 parts of methyltrimethoxysilane; 18-24 parts of dimethyldimethoxysilane; 10-12 parts of a polyhydroxy steric-modified agent; 20-26 parts of water; 36-44 parts of an organic solvent; 0.1-0.3 parts of a titanate catalyst; and 0.1-0.3 parts of an organic tin catalyst. The polyhydroxy steric-modified agent is a topological structure compound containing at least two active hydroxyl groups, which is prepared by an addition reaction of a multifunctional aliphatic polyol and an unsaturated bridged cyclic alicyclic compound under the catalysis of a Lewis acid, and the active hydroxyl group content of the topological structure compound is 3.5-4 mmol / g. The high-toughness methyl silicone resin is applied in the preparation of a flexible sealing material or a heat-resistant coating material for a heating pipe.

The invention relates to aramid nanofiber reinforced silicon dioxide composite aerogel and a preparation method thereof. The method comprises the following steps: preparing aramid nano-fibers into dispersion liquid by adopting a mixed solution containing dimethyl sulfoxide and isopropanol; adding basalt nanosheets and methyltrimethoxysilane into the dispersion liquid, and uniformly mixing the basalt nanosheets and the methyltrimethoxysilane to obtain mixed sol; putting the mixed sol into a mold, sealing the mold by adopting a polytetrafluoroethylene film with micropores, then putting the mold into a low-concentration acetic acid aqueous solution for gelling, aging at room temperature, and then putting the mold into a high-concentration acetic acid aqueous solution for high-temperature aging to obtain high-temperature aged gel; the high-temperature aging gel is sequentially subjected to solvent replacement and supercritical drying, and the aramid nanofiber reinforced silicon dioxide composite aerogel is prepared. According to the preparation method, the composite aerogel assembled by aramid nanofibers, basalt nanosheets and silicon dioxide nanoparticles is prepared, and synergistic improvement of mechanical and thermal properties of the composite aerogel material is finally realized through pore size regulation and control and a multi-dimensional assembly strategy.

The application relates to a synthesis and preparation method of a doped SiOC microsphere reinforced aerogel composite material, which comprises the following steps: SiOC microsphere preparation and SiOC microsphere and aerogel compounding. Tetraethyl orthosilicate, phenyltrimethoxysilane and dimethyldimethoxysilane are used as precursors, hydrochloric acid and ammonia are used as catalysts for polymerization, and high-temperature calcination is carried out in a muffle furnace to obtain SiOC microspheres; methyltrimethoxysilane, dimethyldimethoxysilane, hydrochloric acid, CTAB and urea are added to the SiOC microsphere system under ultrasonic dispersion, and stirring is carried out to obtain a wet gel; a normal-pressure drying process is used for drying, and finally, the SiOC microsphere doped aerogel composite material is obtained. The raw materials such as tetraethyl orthosilicate and phenyltrimethoxysilane used in the application have simple sources, low prices and are green and environment-friendly; the SiOC microspheres have good compatibility with the aerogel matrix, can effectively avoid defects generated in the aerogel due to the compounding of the SiOC microspheres and the aerogel, and can effectively enhance the mechanical properties. The normal-pressure drying operation is simple and safe, and the obtained aerogel composite material has low density, good hydrophobicity and low thermal conductivity.

This invention discloses a hydrophobic antibacterial food preservation film and its preparation method. The film uses a single polyethylene substrate layer with functional coatings on both sides. From the inside out, the coating consists of an adhesion-promoting layer and a hydrophobic antibacterial layer. The adhesion-promoting layer is covalently bonded to the substrate, and the hydrophobic antibacterial layer is cross-linked with it to form a three-dimensional network. Internally, hydrophobic components such as hydrophobic fumed silica, methyltrimethoxysilane, and stearic acid, as well as silanized chitosan quaternary ammonium salt contact antibacterial components, are covalently bonded. The substrate is composed of a compound of metallocene linear low-density polyethylene, low-density polyethylene, and linear low-density polyethylene. After single-layer blow molding, pre-corona discharge, and plasma activation, a primer and topcoat are simultaneously applied to both sides, followed by UV curing, stepped hot air curing, and aging. This method solves the problems of additive migration, easy coating peeling, and conflicting antibacterial and hydrophobic functions in traditional food preservation films. It also possesses long-lasting hydrophobic and anti-condensation effects with high-efficiency antibacterial properties, exhibiting excellent mechanical and optical properties.

The invention relates to a waterproof anticorrosive paint and a preparation method thereof, and belongs to the technical field of paints.The paint comprises a component A and a component B, the component A comprises organic titanium-silicon-POSS (Polyhedral Oligomeric Silsesquioxane) hybrid resin, intercalation modified hydrotalcite-boron nitride composite barrier filler and the like; and the component B comprises a nitrogen-phosphorus modified amine composite curing agent, an interface metal anchoring accelerator and the like. The organic titanium-silicon-POSS hybrid resin is prepared by carrying out a reaction on tetraisopropyl titanate, 2, 3-dihydroxy naphthalene, methyltrimethoxysilane, KH-792 and octa-amino POSS (Polyhedral Oligomeric Silsesquioxane). The intercalation modified hydrotalcite-boron nitride composite barrier filler is prepared by stirring magnesium-aluminum hydrotalcite powder, phytic acid and KH-550 modified boron nitride nanosheets. The nitrogen-phosphorus modified amine composite curing agent is prepared from tris (2-aminoethyl) amine, hydroxymethyl phenyl phosphinic acid, p-toluenesulfonic acid and a T-31 epoxy resin curing agent. The interface metal anchoring accelerant is prepared from triethylamine, absolute ethyl alcohol and 2-aminoethyl phosphonic acid.

The invention provides a water-based electrosilvering coating for an automobile hub and a preparation method of the water-based electrosilvering coating, and belongs to the technical field of paints.The preparation method of the coating comprises the following preparation steps that deionized water, a dispersing agent, a water-based hydroxyl acrylic acid dispersion, a defoaming agent, a flatting agent and dipropylene glycol monobutyl ether are evenly mixed, pH is adjusted, and a premixed resin material is obtained; the preparation method comprises the following steps: mixing an ethanol solution with cyanomethyl [3-(trimethoxysilyl) propyl] trithiocarbonate, adding glacial acetic acid and water-based aluminum paste, stirring, filtering, washing, dispersing in deionized water, adding a sulfobetaine methacrylate monomer and potassium persulfate, heating, reacting, cooling, filtering, washing, mixing with deionized water, and drying to obtain the water-based aluminum silver paste. Modified water-based aluminum paste is obtained; and mixing and stirring the premixed resin material and the modified water-based aluminum paste, adjusting the viscosity and pH of the paste, filtering, standing and curing to obtain the water-based electrosilvering coating for the automobile hub. A coating prepared from the coating has good hardness and corrosion resistance.

The invention discloses a chondroitin-based hydrophilic polysilsesquioxane microsphere and a preparation method thereof, and belongs to the technical field of organic polymers. The technical problem to be solved is to provide the hydrophilic polysilsesquioxane which has good hydrophilicity, physical and chemical stability, good dispersity, good biocompatibility and environmental friendliness. The composition is suitable for the field of skin care products for moisturizing and sunscreen. The key point of the technical scheme is that the preparation method comprises the following steps: S1, preparing a modified silane coupling agent KH560 #: mixing chondroitin, a silane coupling agent and a solvent, reacting to obtain colloid, dialyzing and freeze-drying to obtain the modified silane coupling agent KH560 #; s2, preparing polysilsesquioxane microspheres: mixing the modified silane coupling agent KH560 #, citric acid, methyltrimethoxysilane, a silane coupling agent, a catalyst and a solvent, and reacting to obtain the polysilsesquioxane microspheres.

The invention provides high-toughness methyl silicone resin and a preparation method thereof. The high-toughness methyl silicone resin comprises the following raw materials in parts by mass: 100 parts of methyltrimethoxysilane; 18 to 24 parts of dimethyl dimethoxy silane; 10 to 12 parts of a polyhydroxy steric hindrance modifier; 20 to 26 parts of water; 36-44 parts of an organic solvent; 0.1 to 0.3 part of a titanate catalyst; 0.1 to 0.3 part of an organic tin catalyst; the polyhydroxy steric hindrance modifier is a topological structure compound containing at least two active hydroxyl groups and prepared by an addition reaction of polyfunctional aliphatic polyol and an unsaturated bridged ring alicyclic compound under the catalysis of Lewis acid, and the content of the active hydroxyl groups is 3.5-4mmol / g. The high-toughness methyl silicone resin is applied to preparation of a flexible sealing material or a heat-resistant coating material for a heating pipeline.

The application discloses an alumina-coated diaphragm in the field of lithium ion batteries and a preparation method thereof. The diaphragm comprises alumina particles, a fluorine-containing porous organosilicon compound, a phosphorus-heterocyclic covalent organic framework, a binder, a dispersing agent and deionized water. The fluorine-containing porous organosilicon compound is formed by mixing methyltrimethoxysilane and perfluorohexyltrimethoxysilane with water, reacting to form a sol-gel system after adjusting pH with ammonia water, continuously reacting by adding aminosilane, and then performing rotary evaporation, calcination and grinding; the phosphorus-heterocyclic covalent organic framework is formed by dissolving cyanuric chloride and triphenylphosphine oxide in anhydrous tetrahydrofuran, reacting to form an intermediate by adding imidazole bromide, continuously reacting by adding ethylene glycol, and then performing vacuum drying and grinding. The diaphragm synergistically enhances the interface adhesion and electrolyte wettability through the bifunctional compound, and improves the thermal stability and cycle performance.

The present application belongs to the technical field of hot dry rock development, and particularly relates to a fracturing fluid thickening agent for hot dry rock hydraulic fracturing and a preparation method thereof. The fracturing fluid thickening agent for hot dry rock hydraulic fracturing comprises the following raw material components in parts by weight: acrylamide 14-18 parts, 2-acrylamide-2-methylpropanesulfonic acid 6-8 parts, methyl methacryloyloxymethyl trimethoxysilane 4-6 parts, sodium p-styrenesulfonate 3-5 parts, water 60 parts, emulsifier 4-6 parts, and white oil 25-45 parts. The fracturing fluid thickening agent for hot dry rock hydraulic fracturing provided by the present application can realize hydrophobic association thickening in water, has high drag reduction performance at low viscosity under high temperature, has good temperature resistance and shear resistance at high viscosity, has good stability, and can meet construction requirements.

The present invention relates to a fabricated wharf structure, comprises a prefabricated concrete pile cap unit, composite pile foundation assembly and elastic fender module: pile cap unit is poured with fiber reinforced concrete with a fiber volume content of 1.2%—l.8%, a trapezoidal steel rail with a fiber content of 1.5-2.0 kg / m3 is pre-embedded in a side, nano—silica modified with methyl trimethoxysilane has a particle size of 10-20 nm and specific surface area of 180-220 mZ / g, is 3-5% of a mass of a cementing material, a polyurea waterproof layer of 2.0-2.5 mm is coated on a surface of a joint; composite pile foundation is a prestressed concrete pipe pile doped with 0.8%-1.2% silane corrosion inhibitor, and an anchoring steel bar with an epoxy resin coating is pre-embedded in a pile top. The structure is suitable for wharf construction in marine environment, and has long-term corrosion resistance, excellent impermeability and buffering performance.

The application discloses a surface treatment agent and a preparation method and application thereof, and preparation raw materials include 10-40 parts of micron-grade diamond sand and 60-90 parts of an organic treatment agent according to weight parts; preparation raw materials of the organic treatment agent include a silane coupling agent and a surfactant; the silane coupling agent includes at least one of isobutyl triethoxysilane, methyl triethoxysilane, propenyl triethoxysilane and butyl acrylate-based triethoxysilane; and the surfactant includes at least one of sodium dodecyl benzene sulfonate, gamma-aminopropyl trimethoxysilane, epoxy propenyl trimethoxysilane and methyl trimethoxysilane. The application provides a surface treatment agent, the surface treatment agent is sprayed to a concrete surface according to the application scheme, the wear resistance and the anti-cracking performance of the concrete surface are enhanced, a large amount of the surface treatment agent is saved, and the concrete cost is reduced.

The application discloses a chemical synthetic water solution and application thereof in metal surface insulation treatment, the chemical synthetic water solution comprises the following components in weight parts in unit volume: 1-5 parts of organic acid, 3-5 parts of gamma-glycidoxypropyltrimethoxysilane, 1-3 parts of methyltrimethoxysilane, 0.1-0.3 parts of inorganic reinforced phase precursor, 0.05-0.2 parts of rare earth salt, 0.2-0.8 parts of nano SiO2 and 85-95 parts of water. The method for carrying out insulation treatment on the metal surface by using the specific chemical synthetic water solution can grow a protective layer on the metal surface in situ, the grown protective layer has the characteristics of compactness and high strength, can be integrated with the base material, and thus excellent hardness, corrosion resistance, insulation and bonding force are obtained, and the method can be widely applied to the metal surface treatment industry.

The invention provides an epoxy coating maintenance agent as well as a preparation method and application thereof. The maintenance agent is prepared from water, a compatibilizer, an organic corrosion inhibitor, a coating activator, ethanol, gamma-aminopropyltriethoxysilane, methyltrimethoxysilane, a catalyst and nano silicon dioxide. According to the epoxy coating maintenance agent, by means of the synergistic effect of MTMS and APS, a silanol group of a co-hydrolytic condensation product of MTMS and APS is condensed with the defect surface of a coating, amino of APS reacts with residual groups of the coating, meanwhile, the compatibilizer, the organic corrosion inhibitor, the coating activator and nano-silica are compounded, the synergistic cooperation effect is fully achieved, and the service life of the coating is prolonged. The coating defect surface activating agent can permeate deep positions of coating defects, surface groups of the coating defects are activated, and a firm and compact organic-inorganic hybrid silicon-oxygen network is created on the surfaces and the interiors of the coating defects, so that deep repair and long-acting maintenance of the epoxy coating are realized.

The utility model discloses a methyltrimethoxysilane production device, relates to the technical field of methyltrimethoxysilane, and aims to solve the problems that in the background technology, when cold air is introduced into an inner cylinder, gas exhausted from the inner cylinder is not subjected to adsorption and purification treatment, gas generated during reaction is directly exhausted into the external environment, and the production cost is low. In order to solve the problems of poor heat exchange efficiency and poor environmental protection property, the utility model provides the following scheme: the device comprises a reaction cylinder, the reaction cylinder comprises a cylinder body, a cylinder cover connected to the outer wall of the top of the cylinder body through a bolt, an air inlet pipe fixedly arranged on the inner wall of the upper part of one side of the cylinder body and an air outlet pipe fixedly arranged on the inner wall of the upper part of one side of the cylinder body, and one side of the cylinder body is provided with a heat exchange mechanism; the heat exchange mechanism comprises a mounting box, a mounting plate connected to the outer wall of the mounting box through bolts, and a plurality of heat dissipation plates. According to the utility model, the reaction gas can be cooled, adsorbed and purified while the interior of the barrel is cooled, so that the reaction gas is prevented from being directly discharged into the external environment, and the environmental protection property is improved.

This invention discloses a high-temperature and corrosion-resistant coating for aluminum alloy heat exchange tubes and its preparation method, relating to the field of coating materials technology. The invention includes the following steps: cleaning and degreasing the aluminum alloy heat exchange tube, then spraying a treatment agent, followed by curing, spraying a composite coating slurry onto the surface, and finally curing to obtain the high-temperature and corrosion-resistant coating for the aluminum alloy heat exchange tube. The treatment agent is made of NS-30 silica sol, deionized water, and methyltrimethoxysilane; the composite coating slurry is made of polyamic acid solution, synergist, functionalized boron nitride nanosheets, modified hexagonal boron nitride, leveling agent, and defoamer. The silane film introduced by the treatment agent, and the synergist, functionalized boron nitride nanosheets, and modified hexagonal boron nitride introduced into the composite coating slurry, effectively improve the coating's high-temperature resistance, corrosion resistance, adhesion, thermal conductivity, aging resistance, and toughness. Therefore, this invention has broader application prospects.

The invention discloses an active flexible heat-proof material as well as a preparation method and application thereof. The active flexible heat-proof material comprises an active flexible heat-proof material heat-insulating layer, a metal reflecting layer and a fiber fabric layer which are sequentially stacked, the active flexible heat-proof material heat insulation layer is prepared by mixing methyl hydrogen liquid ceramic resin, methyltrimethoxysilane, a catalyst, a diluent, a graphite substrate, ceramic chopped fibers and silicon dioxide hollow microspheres and then calcining. The material is low in overall density and excellent in heat insulation performance, the material structure is stable in an extreme high-temperature environment, the heat insulation performance is not attenuated, and the safety of internal equipment is ensured. The method is suitable for a spacecraft surface sensitive to weight or a high-speed aircraft thermal protection system, the structural load can be reduced, and the energy efficiency can be improved.

This invention belongs to the field of coating technology, specifically relating to a linear high-polysilane-reinforced wear-resistant antireflective coating and its preparation method. Using tetraethyl orthosilicate and methyltriethoxysilane / methyltrimethoxysilane as co-precursors, an alkaline network silica sol is synthesized under alkaline conditions via a sol-gel method. Using poly(methylhydrosiloxane) as the silicon source, a linear high-polysiloxane sol is synthesized under the action of a catalyst. The two silica sols are then mixed, aged, and ammonia-removed to obtain a neutral mixed sol. A double-sided antireflective coating is then deposited on a borosilicate glass surface using an dip-coating method. Finally, the coating is calcined in a muffle furnace at 550°C for 2 hours to obtain the wear-resistant antireflective coating. The prepared antireflective coating exhibits high transmittance and good wear resistance. The preparation process avoids the use of acid, preventing corrosion of production equipment and environmental pollution, making the production operation green and environmentally friendly.

The invention belongs to the technical field of photo-thermal ink coatings, and particularly relates to a preparation method of a photo-thermal ink coating. The photo-thermal printing ink is obtained by mixing and reacting 40-100 parts of photo-thermal suspension liquid, 5-10 parts of Arabic gum and 8-16 parts of glycerinum. Wherein the photo-thermal suspension is obtained by mixing cellulose nanofibers, ferroferric oxide / multi-walled carbon nanotubes, methyltrimethoxysilane and ammonia water, and reacting to form a siloxane bonding network. The ferroferric oxide / multi-walled carbon nanotube is obtained by reacting an aminated multi-walled carbon nanotube and nano ferroferric oxide according to a mass ratio of 1: (0.5-1). According to the photo-thermal ink, through surface amination modification and multi-component synergy, the wide spectrum absorptivity reaches 88.9%, and the photo-thermal ink has excellent photo-thermal conversion efficiency and substrate adhesion and is suitable for photo-thermal conversion and functional surface construction.

The invention discloses a heat-conducting and hydrophobic modified phosphorus-nitrogen halogen-free flame retardant chitosan aerogel as well as a preparation method and application thereof, and belongs to the technical field of aerogel preparation. The invention provides a preparation method of heat-conducting, hydrophobic and flame-retardant chitosan aerogel, which comprises the following steps: by taking biomass chitosan as a matrix, carrying out hydrophobic modification through tetraethoxysilane and methyltrimethoxysilane, and introducing an autonomously synthesized phytic acid-dicyandiamide flame retardant and an MXene high-heat-conductivity filler to form a mixed solution; and freezing in a refrigerator and freeze-drying in vacuum to obtain the multifunctional aerogel with a three-dimensional porous structure. The aerogel has remarkable advantages in the aspects of reducing the dosage of the flame retardant and reducing the thermal conductivity, and has the characteristics of hydrophobicity, flame retardance, thermal conductivity and reproducibility.

The present application relates to the field of galvanized layer surface corrosion protection technology, especially inorganic resin paint, preparation process and application in electro-galvanized steel sheet. An inorganic resin paint comprises A component and B component, the mass ratio of the A component to the B component is 100:(10-40); the A component is mainly made of epoxy silane, methyl trimethoxysilane, phenyl triethoxysilane, C1-2 alcohol, deionized water and pH value regulator; the mass ratio of the C1-2 alcohol to the deionized water is (70-80):(20-30); the sum of the mass of the C1-2 alcohol and the deionized water accounts for 80-96wt% of the A component; the B component is titanium silicon compound sol, and the titanium silicon compound sol is mainly a hydrolytic copolymer formed by titanium ester and silicate. The inorganic coating formed by the present application has good compactness and strong film adhesion, and can have excellent corrosion protection and enhancement effect.

The invention provides a methyltrimethoxysilane tail gas treatment process capable of efficiently recycling raw materials and completely eradicating blockage. The invention creatively designs a'condensation-methanol spraying reaction-secondary condensation 'three-stage recovery and reaction system. Enabling tail gas to pass through a low-temperature condenser and a gas-liquid coalescer, and recovering most of liquid silane intermediates; a trace amount of methyl trichlorosilane in the residual gas phase is directionally converted into soluble alkoxy silane in a methanol spray tower under a specific temperature and pressure condition, and the soluble alkoxy silane returns to a reaction system; and finally, the tail gas is subjected to deep condensation and a gas-liquid coalescer to ensure that methanol and residual components are extremely recycled. According to the process, tail gas treatment, raw material recovery and by-product inhibition are combined for the first time, gas finally entering the absorption tower hardly contains salifying components, generation of solid particles and blockage of the absorption tower are avoided fundamentally, and great reduction of three-waste treatment cost and continuous and stable operation of production are realized.

The invention discloses hyperbranched polymer poly zirconium aluminum borosiloxane and a preparation method and application thereof, and belongs to the technical field of high-molecular compounds, the preparation method comprises the following steps: dissolving a zirconium source and a chelating agent in an organic solvent, and stirring to obtain a zirconium-chelating agent complex solution; the preparation method comprises the following steps: dissolving aluminum isopropoxide and boric acid in an organic solvent, adding glacial acetic acid, and uniformly stirring to obtain a boron-aluminum composite solution; and uniformly mixing the zirconium-chelating agent complex solution and the boron-aluminum composite solution to obtain a zirconium-boron-aluminum mixed precursor solution, then adding methyltrimethoxysilane into the zirconium-boron-aluminum mixed precursor solution, carrying out a reaction, and carrying out rotary evaporation to remove the organic solvent so as to obtain the poly zirconium-aluminum-boron siloxane. According to the synergistically modified poly-zirconium-aluminum-boron siloxane provided by the invention, the temperature resistance of a resin framework is improved through introduction of a zirconium element, and meanwhile, the resin can form a glass phase in situ at a high temperature through boron-aluminum modification, so that the bonding and protection effects are achieved, and the limitation of a single modified element is overcome.