74 results about "Vinyltriethoxysilane" patented technology

The invention discloses a method for improving the performance of recycled aggregate concrete, and belongs to the technical field of building materials. The preparation method comprises the following steps: preparing a modified solution which is compounded by double components of gamma-methacryloxy propyl trimethoxy silane and vinyl triethoxy silane; carrying out surface modification on the recycled aggregate by adopting a graded pre-wetting-spraying composite modification method; preparing a slag powder-fly ash-nano silicon dioxide ternary composite admixture; preparing a concrete mixture according to the mixing ratio; through surface modification of the silane coupling agent and cooperation of the composite admixture, the problems of poor workability and low strength of the concrete caused by high water absorption of the recycled aggregate are effectively solved, the 28d compressive strength of the prepared concrete is improved by 20-30%, the anti-freezing grade reaches F200, and the shrinkage rate is reduced by 15-25%.

The color migration prevention polyurethane composite film is prepared from the following raw materials in parts by weight: 40 to 50 parts of crystalline modified polyurethane, 30 to 40 parts of waterborne polyurethane, 10 to 15 parts of vinyltriethoxysilane, 5 to 8 parts of graphene, 5 to 8 parts of color fixing agent, 6 to 8 parts of toner and 1 to 3 parts of silicon dioxide. According to the color migration prevention polyurethane composite film and the preparation method thereof, the obtained polyurethane composite film has excellent color migration prevention and washing resistance effects.

The invention relates to a continuous casting-continuous extrusion short-process forming process for a large-width copper plate strip, and belongs to the technical field of metal processing. The method comprises the following steps: preheating and drying high-purity cathode copper, melting in a smelting device, covering the surface of molten copper with charcoal and graphite flakes, carrying out on-line degassing, deoxidizing and stirring, upwards leading a copper rod by adopting a traction unit, and extruding between an extrusion wheel and a compaction wheel; a four-high rolling mill is used for rolling; cleaning and passivating the annealed copper plate strip, spraying a lanthanum (III)-containing silane-benzimidazole lubricant solution on the surface of the copper plate strip, and drying; slitting to obtain a large-width copper plate strip; the lanthanum (III)-silane-benzimidazole lubricant is prepared from vinyltriethoxysilane, deionized water, ethanol, benzimidazole and lanthanum nitrate hexahydrate (III), and the lanthanum (III)-silane-benzimidazole lubricant is prepared from the vinyltriethoxysilane, the deionized water, the ethanol, the benzimidazole and the lanthanum nitrate hexahydrate (III); the prepared copper plate strip is high in purity, low in oxygen content, high in conductivity and excellent in mechanical property, and the technical requirements of the high-end field for the high-purity high-conductivity oxygen-free copper plate strip are met.

The present application relates to a kind of monodisperse core-shell type hybrid silica microspheres containing vinyl shell and its preparation and application. Specifically, using "two-phase method" strategy, monodisperse solid silica microspheres are used as matrix, vinyl triethoxysilane and tetraethyl orthosilicate are used as raw materials, lauryl amide propyl betaine and sodium subtiliporin are used as double-template pore-forming agent, under the catalysis of urea, sol-gel reaction occurs, a layer of porous hybrid shell containing vinyl functional group is constructed on the surface of solid silica microspheres, and core-shell type silica hybrid microspheres are formed. Because the shell contains a large number of vinyl functional groups, after hydrophilic modification with captopril, it is used as the adsorbent of hydrophilic interaction chromatography, and is applied to the selective enrichment of biological samples. The core-shell type silica hybrid microspheres prepared in the present application have uniform morphology, good monodispersity, and rich vinyl functional groups on the surface, which are easy to modify and apply subsequently.

This invention relates to the field of metal protection and lubrication materials, and discloses a silent, vibration-damping, film-forming, long-lasting rust-preventive oil for bearings and its preparation method. The rust-preventive oil comprises a base oil, a dynamic borate ester-organosilicon-tungsten bridging synergistic modifier, itaconic acid hydrazine, a dimer ester, calcium petroleum sulfonate, polyisobutylene, a phosphate extreme pressure agent, and an antioxidant. The dynamic borate ester-organosilicon-tungsten bridging synergistic modifier forms a reversible dynamic covalent network of borate esters with phenylboronic acid through a diol-based compound, and then undergoes a confined sol-gel polymerization reaction with vinyltriethoxysilane to form silicon-oxygen segments. These segments are then coordinated and bridged by tungstate and diol groups to construct a three-dimensional coupled structure. The rust-preventive oil of this invention has advantages such as high film density, strong adhesion, good vibration damping and noise reduction effect, and strong rust prevention durability, making it suitable for the storage and operational protection of high-end bearings.

The application relates to the technical field of high polymer materials, and discloses a fireproof and flame-retardant ceramifiable silicone rubber and a preparation method thereof. The fireproof and flame-retardant ceramifiable silicone rubber is prepared from the following components in parts by mass: 100 parts of silicone rubber, 5-20 parts of fumed white carbon black, 10-65 parts of modified flame retardant, 20-50 parts of ceramic powder, 5-20 parts of fluxing agent, 0.5-2 parts of vulcanizing agent and 1-7 parts of coupling agent; the raw material of the modified flame retardant comprises butyl acrylate-styrene sodium sulfonate-vinyl triethoxysilane copolymer and inorganic flame retardant. Through the technical scheme, the problem that the inorganic flame retardant and the silicone rubber have poor compatibility in the related art, leading to poor flame-retardant effect and mechanical property of the ceramifiable silicone rubber, is solved.

The invention discloses a SiOC aerogel-molecular sieve composite material with a coating structure for protecting a methane gas sensor and a preparation method of the SiOC aerogel-molecular sieve composite material, the SiOC aerogel-molecular sieve composite material adopts a structural design of coating a molecular sieve with SiOC aerogel, and the inner core structure adopts a molecular sieve with micron-scale granularity and nano-scale internal pores; and the SiOC aerogel coated outside is prepared by adopting methyl trimethoxy silane and vinyl triethoxy silane as silicon sources and adopting a sol-gel method. On one hand, defects caused in the preparation process of the aerogel can be reduced as much as possible, on the other hand, interface contact between the aerogel and the molecular sieve can be effectively ensured, the specific surface area and the micropore porosity of the aerogel are further improved while the structural stability of the aerogel is ensured, and the preparation method is simple and convenient. Therefore, the SiOC aerogel and molecular sieve composite material has better gas adsorption and filtration capacity and can be stably applied to a methane gas sensor protection material.

The invention relates to the field of solid wood composite floors, and discloses a waterproof and wear-resistant solid wood floor and a preparation method thereof.The waterproof and wear-resistant solid wood floor comprises a solid wood floor body and waterproof and wear-resistant paint, and the waterproof and wear-resistant paint comprises modified acrylic emulsion, a modified additive and auxiliaries; the modified acrylic emulsion comprises methyl methacrylate, butyl acrylate, modified attapulgite and the like; the modified attapulgite is prepared by coating attapulgite with zinc molybdate by using a precipitation method and then grafting with a modified silane coupling agent prepared by reacting acrylamide and 3-(2, 3-epoxypropoxy) propyltrimethoxysilane; according to the modified additive, pentaerythritol phosphate is used for replacing phosphorus oxychloride and then continues to be substituted with N, N '-bis-(2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 6-hexamethylenediamine, and then tetraethoxysilane and vinyltriethoxysilane are used for modifying an obtained modified flame-retardant intermediate, so that the flame-retardant flame-retardant material is prepared. According to the invention, the solid wood floor is endowed with high hardness, water resistance and wear resistance through the waterproof wear-resistant coating, and has excellent flame-retardant effect and ultraviolet aging resistance.

This invention discloses a high- and low-temperature resistant and anti-aging building wire and its preparation method, relating to the field of wire and cable technology. The high- and low-temperature resistant and anti-aging building wire of this invention comprises: a wire core; and a modified polyvinyl chloride (PVC) insulation layer covering the wire core; wherein the modified PVC insulation layer comprises at least the following raw materials in parts by weight: 80-100 parts of PVC; 10-20 parts of hydrogenated nitrile rubber; 5-15 parts of PVC-g-polyacrylic acid graft copolymer; 10-25 parts of vinyltriethoxysilane coupling agent modified boron nitride / magnesium hydroxide composite flame retardant; 3-8 parts of linoleic acid modified polyhedral oligomeric silsesquioxane; 4-8 parts of heat stabilizer; 3-6 parts of plasticizer; 1.5-3.5 parts of lubricant; 0.5-2 parts of antioxidant; and 0.3-1.5 parts of ultraviolet absorber. The building wire prepared by this invention has wide temperature range adaptability, aging resistance, and flame-retardant and smoke-suppressing properties.

This invention discloses a high-temperature resistant flat cable and its manufacturing process, comprising: a flat aluminum alloy busbar, an insulation layer covering the outer surface of the flat aluminum alloy busbar, and a flat aluminum alloy tube covering the outer surface of the insulation layer; the insulation layer is formed by extruding cable material, and the cable material is composed of the following components in parts by weight: 100 parts of polyethylene resin, 1-3 parts of silane crosslinking agent, 0.5-1 parts of glycidyl methacrylate, 0.1-1.5 parts of antioxidant, 0.05-0.2 parts of initiator, 0.2-0.5 parts of tetrabutyl zirconate, and 0.1-0.3 parts of triallyl isocyanurate; the silane crosslinking agent is vinyltrimethoxysilane or vinyltriethoxysilane, and the initiator is at least one of dicumyl peroxide, methyl ethyl ketone peroxide, or benzoyl peroxide. The insulation layer of the high-temperature resistant flat cable of this invention has a breakage elongation change rate of 10~20% after aging at 125℃, and an elongation rate of 30~55% under thermal extension load, thereby improving the high-temperature resistance and service life of the flat cable.

The invention relates to the technical field of warming patches, in particular to a herbal warming moxibustion warming patch and a preparation method thereof.The herbal warming moxibustion warming patch is characterized in that a printed non-woven fabric, a heating layer, a herbal layer and a skin-friendly non-woven fabric are sequentially compounded from top to bottom to obtain a warming patch body, and when the warming patch is used, a self-adhesive moistening bag is attached to the warming patch body; the graphene non-woven fabric and the skin-friendly non-woven fabric are subjected to antibacterial finishing liquid modification treatment, so that the comfort and the safety of the warm paste are improved; treating the non-woven fabric by using vinyltriethoxysilane, and introducing double bonds; composite microcapsules, carboxylated chitosan, a penetrating agent, an initiator and deionized water are mixed to serve as antibacterial finishing liquid, the antibacterial durability of the warm paste is improved, the safety of the warm paste is greatly improved, and the service life of the warm paste is greatly prolonged.

The invention discloses a bionic modification method of a hemodialysis membrane and application of the bionic modification method, and belongs to the technical field of medical materials.The method comprises the steps that vinylbenzylamine and vinyltriethoxysilane are dissolved in triethyl phosphate to be stirred, an initiator azodiisobutyronitrile is added, and heating polymerization is conducted to obtain a polymer [P (EP-VTES)]; carrying out amidation reaction to form a gallic acid functional polymer (Ga-EPTES); ga-EPTES is cross-linked to the surface of a polyethersulfone membrane in a monomolecular layer form, and the hemodialysis membrane with the functions of resisting oxidation and removing free DNA is prepared. According to the bionic modification method of the hemodialysis membrane, the functional limitation and modification defects of a traditional blood purification material are broken through, an efficient, safe and large-scale solution is provided for sepsis treatment, and the bionic modification method has scientific value and clinical transformation potential.

To provide a corrosion inhibitor coating composition.SOLUTION: A corrosion inhibitor coating composition includes a corrosion inhibitor such as 2,5-dimercapto-1,3,4-thiadiazole (DMCT), at least one reactive silane, and a catalyst. The reactive silane may include tetraethoxysilane (TEOS), vinyltriethoxysilane (VTS), 3-glycidoxypropyltrimethoxysilane (GPTMS), methyltrimethoxysilane (MTMS), or a combination thereof. The corrosion inhibitor coating composition does not include chromium. The catalyst may include zirconium isopropoxide or acetic acid. The corrosion inhibitor may also include a thiadiazole, a benzotriazole, an imidazole, or a combination thereof. An article to which a corrosion inhibitor coating treatment is applied and a method of providing a corrosion inhibitor coating treatment are also disclosed.SELECTED DRAWING: None

The invention discloses modified alkyd resin enamel paint and a preparation method thereof, and relates to the technical field of alkyd resin paint. The modified alkyd resin enamel paint is prepared from the following raw materials: fluorosilicone acrylic acid composite modified alkyd resin, scarlet powder, precipitated barium sulfate, a composite drier, zirconium iso-octoate with the purity of 12%, an anti-skinning agent and xylene. The fluorosilicone acrylic acid composite modified alkyd resin is prepared from basic alkyd resin, an acrylic acid prepolymer, vinyltriethoxysilane, 4-(2, 2-difluoroethyl) benzoic acid, an initiator, a solvent and a catalyst. The fluorosilicone acrylic acid composite modified alkyd resin is formed through step-by-step reaction of the acrylic acid prepolymer, the vinyltriethoxysilane and the 4-(2, 2-difluoroethyl) benzoic acid, so that the weather resistance, the water resistance, the pollution resistance and the adhesive force of a coating are improved, the modified alkyd resin still has good leveling property, the cost is prevented from being out of control, and the service life of the coating is prolonged. And both economy and practicability are considered.

The invention discloses a silicon resin-based super-hydrophobic nano-coating and a production process thereof, and relates to the technical field of waterproof paints.The hydrophobic branched polysiloxane is prepared, surface energy is reduced by adding diphenyl silanediol and introducing phenyl to enhance hydrophobicity, adding octyl triethoxy silane and adding long-chain alkyl, and the hydrophobic branched polysiloxane has the advantages that the surface energy is reduced; and tridecafluorooctyltriethoxysilane is added, and a fluorine-containing group is introduced, so that the hydrophobicity is further improved. According to the invention, trifluoropropyltriethoxysilane is also added, so that the surface energy is reduced, and the hydrophobicity of the nano coating is improved. The problems that epoxy resin is high in polarity, silicon resin is low in polarity, the epoxy resin and the silicon resin are poor in compatibility, and mixing layering and curing phase separation are prone to occurring in the prior art are solved, a large amount of vinyltriethoxysilane is added, vinyl can be subjected to an addition reaction with epoxy groups of bisphenol A type epoxy resin, the compatibility is improved, and therefore the hydrophobicity and compactness of the super-hydrophobic nano coating are improved.

The invention discloses a preparation method of high-strength quartz sand for fracturing, the quartz sand is subjected to cleaning, dehydration, ball milling and secondary modification, the modification is divided into polymerization modification and surface modification, a modifier for polymerization modification comprises vinyltriethoxysilane, sodium stearate, a 1% sodium hydroxide solution, phenolic resin and titanate, and the modifier is a mixture of vinyl triethoxysilane, sodium stearate, 1% sodium hydroxide solution, phenolic resin and titanate. According to the invention, the roundness, sphericity, surface smoothness, microstructure and other properties of the quartz fracturing sand are improved, so that the technical problems of lower strength and poorer crushing resistance of the quartz fracturing sand are solved.

The present application relates to a kind of fire-retardant railway tunnel EVA waterproof board with smoke suppression effect and its preparation method, the weight percentage of each component of EVA waterproof board is as follows: waterproof board EVA composite resin particle 35-37%, high-density polyethylene 4-11%, linear low-density polyethylene 16-17%, flame-retardant masterbatch 35-45%;Wherein, the flame-retardant masterbatch is obtained by extruding granulation of the blend of high-density polyethylene and flame retardant, the flame retardant is obtained by surface coating modification of CTAB@ADP using gamma-aminopropyl triethoxysilane and vinyl triethoxysilane, and the CTAB@ADP is obtained by surface coating modification of ADP using CTAB.The EVA waterproof board can meet the required mechanical properties, and also achieve the building material flame retardant standard B1 level, and the smoke production is less.

This invention relates to the field of coating technology, specifically to a vinyl POSS-modified fluorinated polysiloxane coating, its preparation method, and its application. First, octavinyl POSS and fluorinated polysiloxane undergo a hydrosilylation reaction under the action of a catalyst to obtain a vinyl POSS-modified fluorinated polysiloxane polymer. Then, the polymer is mixed with vinyltriethoxysilane and cured by heating to obtain the coating. This invention introduces octavinyl POSS into fluorinated polysiloxane via hydrosilylation and uses vinyltriethoxysilane as a crosslinking agent for heating curing to obtain the product. This overcomes the degradation of material mechanical properties caused by agglomeration during physical blending, improves the hardness, friction, and adhesion of the original fluorinated polysiloxane, and achieves a light transmittance of up to 94.12%.

This application provides a hydrotalcite-reinforced aerogel and its preparation method. The aerogel is prepared using methyltriethoxysilane, vinyltriethoxysilane, and hydrotalcite as raw materials. Methyltriethoxysilane and vinyltriethoxysilane serve as precursors, while hydrotalcite acts as the reinforcing phase. The hydroxyl groups on the surface of hydrotalcite undergo a condensation reaction with the silanol groups generated from the hydrolysis of methyltriethoxysilane and vinyltriethoxysilane, forming a stable interface that participates in the construction of the aerogel's three-dimensional network. This improves the degree of cross-linking of the framework and effectively inhibits drying shrinkage. The prepared aerogel exhibits low density, low shrinkage, low thermal conductivity, and good hydrophobic properties, while also demonstrating improved mechanical properties and thermal stability, indicating promising application prospects.

The invention discloses a preparation method of a transparent antifouling hyperbranched self-cleaning coating. The preparation method comprises the following steps: firstly, carrying out transesterification on vinyltriethoxysilane and diethylene glycol to prepare hyperbranched polysiloxane; then, 2-(perfluorooctyl) ethyl methacrylate, a free radical initiator azodiisobutyronitrile and double-bond-end hyperbranched polysiloxane are subjected to a free radical copolymerization reaction to obtain a hyperbranched fluorosilicone copolymer, the polymer is sprayed to the surfaces of different base materials, and the transparent hyperbranched fully-hydrophobic solid lubricating coating can be obtained by heating and curing. The coating constructed by the invention has ultra-low surface energy and low viscosity, can effectively repel liquids with different surface tensions and viscosities, maintains clear optical transparency, can realize integration of antifouling and anti-adhesion functions of a vehicle windshield coating, and has a wide application prospect. And a feasible path is opened up for the design of outdoor optical surface high-performance protective coatings for traffic, new energy, building glass, electronic equipment and the like.

The present application relates to solid wood composite floor field, disclose a kind of waterproof wear-resistant solid wood floor and its preparation method, including solid wood floor and waterproof wear-resistant coating, waterproof wear-resistant coating includes: modified acrylic emulsion, modified additive, auxiliary agent;Modified acrylic emulsion includes: methyl methacrylate, butyl acrylate, modified attapulgite etc.;Modified attapulgite is coated with zinc molybdate after using precipitation method with the modified silane coupling agent prepared by using acrylamide and 3-(2,3-epoxypropoxy) propyl trimethoxysilane reaction Grafting is made;Modified additive is substituted with N,N'-bis-(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexanediamine after using pentaerythritol phosphate ester Substitution continues, then the modified flame-retardant intermediate obtained is modified with tetraethyl orthosilicate and vinyltriethoxysilane, and is made into, the present application is endowed with high hardness and waterproof wear resistance to solid wood floor by waterproof wear-resistant coating, and has excellent flame-retardant effect and ultraviolet aging resistance.

The application discloses a kind of high-temperature-resistant flame-retardant fluororubber composite material for switchgear and a preparation method thereof, and relates to the technical field of fluororubber.The application uses gamma ray co-irradiation method to graft polyvinyl fluoride with diethyl allyl phosphate, and reacts with high methyl vinyl silicone rubber under the action of triallyl phosphate to form a dense three-dimensional hybrid network, increase the phonon scattering resistance to reduce the heat conduction efficiency, and the phosphorus component and the silicon rubber combustion product synergistically form a gas-solid dual flame-retardant barrier.The application grafts talc powder with vinyltriethoxysilane and modifies it by radiation and polymerization with diethyl vinylphosphonate to obtain a lamellar filler, delays heat transfer, and induces the directional formation of carbon layer to form a "lamellar-glass-carbon" composite barrier layer.The surface modification increases the specific surface area, improves the efficiency of free radical capture, and the hybrid crosslinking point formed by graft copolymerization and the matrix network form a double phonon scattering barrier.The high-temperature-resistant flame-retardant fluororubber composite material for switchgear prepared by the application has the effects of high-temperature resistance and flame retardance.

This invention provides a method for preparing a lithium-ion battery anode material and its application in lithium-ion batteries. Using MMT as a template, vinyltriethoxysilane (VTES) as the silicon source and resorcinol as the carbon source, the invention prepares MMT@SiO through a sol-gel method, followed by oxidative polymerization and high-temperature calcination. x / C composite material. The introduction of MMT enhances the interfacial bonding with the carbon layer. Its natural layered structure can alleviate the volume expansion stress of the electrode material, and its high specific surface area can adsorb lithium ions and improve conductivity, effectively improving SiO2. x Electrochemical performance of / C materials. After 500 cycles at 2.0 A / g, MMT@SiO x / C has a capacity retention rate as high as 92.36%, which is far higher than that of SiO. x / C capacity retention rate (73.51%).

The invention discloses a preparation method and application of a hydrated salt phase change microcapsule modified diaphragm, and relates to the technical field of battery diaphragms.The preparation method comprises the steps that hydrated salt phase change microcapsules and a binder are taken and added into a solvent, and stirring is conducted; carrying out ultrasonic dispersion, taking out and magnetically stirring to obtain hydrated salt phase change microcapsule slurry; putting the lithium ion battery diaphragm into an organic solvent, and dipping; taking out, washing with deionized water, and soaking in deionized water; putting into a plasma surface treatment instrument, and treating in an oxygen atmosphere; taking out, and dipping in a chitosan solution; taking out, and dipping in a vinyltriethoxysilane solution; taking out and drying in vacuum to obtain a plasma modified diaphragm; and coating the surface of the plasma modified diaphragm with the hydrated salt phase change microcapsule slurry, and performing vacuum drying to obtain the hydrated salt phase change microcapsule modified diaphragm.

The invention provides an organic silicon adhesive for a high-temperature-resistant mica tape and a preparation method of the organic silicon adhesive. The adhesive is prepared from 40 to 50 parts of diphenyl siloxane-dimethyl siloxane block copolymer, 5 to 8 parts of vinyltriethoxysilane, 2 to 3 parts of tetra (trimethylsiloxy) titanate, 1 to 2 parts of tripropyl borate, 5 to 12 parts of filler, 3 to 5 parts of cerium-doped zirconium oxide temperature-resistant agent, 1 to 3 parts of defoaming agent, 0.5 to 3 parts of flatting agent and 0.5 to 2 parts of initiator. The preparation method comprises the steps of synthesis of a matrix solution, uniform mixing of filler, vacuum defoaming, prepolymer activation and the like, cerium-doped zirconium oxide is used for capturing high-temperature free radicals and forming a dynamic oxygen barrier, and meanwhile, a block copolymer and an inorganic-organic hybrid network synergistically enhance the thermal stability; and after the prepared mica tape is aged for 12 hours at the constant temperature of 300 DEG C, the bonding strength attenuation rate is less than or equal to 15%, and is obviously superior to that of a traditional silicon resin adhesive.

The invention provides a multifunctional transparent nanoparticle modified polyacrylate compound coating as well as a preparation method and application thereof, and belongs to the technical field of modified coatings. The preparation method comprises the following steps: mixing methyl methacrylate, butyl acrylate, nano silicon dioxide, nano titanium dioxide, 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate, vinyltriethoxysilane, an initiator and a solvent to obtain a mixture; and reacting the mixture in a protective atmosphere to obtain the multifunctional transparent nano-particle modified polyacrylate compound coating. According to the invention, nano silicon dioxide, nano titanium dioxide and vinyltriethoxysilane are adopted to modify fluorinated polyacrylate, and after freeze-thaw cycle, acid aging and ultraviolet accelerated aging, the coating still keeps a relatively high contact angle and excellent color stability. The coating provided by the invention has a remarkable inhibition effect on the growth of microorganisms, and has huge application potential in the protection of stone cultural relics and heritage.

The application relates to the technical field of cables, and discloses a corrosion-resistant overhead insulated cable and a manufacturing method thereof. The corrosion-resistant overhead insulated cable comprises, from inside to outside, a conductor, a shielding layer and an insulation layer. The insulation layer comprises the following components by weight: 65-75 parts of high-density polyethylene, 5-7 parts of modified kaolin, 13-17 parts of ethylene-tetrafluoroethylene copolymer, 0.5-2 parts of an antioxidant, 1-3 parts of a plasticizer, 8-10 parts of a flame retardant and 0.5-1.5 parts of a lubricant. The modified kaolin is first modified by ethenyl triethoxysilane to obtain silanized kaolin, and then modified by laurylamine dipropylenediamine and gamma-glycidyl ether oxyethyl trimethoxysilane. The technical scheme can solve the problem of poor corrosion resistance of the overhead insulated cable in the related art.

The invention relates to the field of tunnel engineering materials, and particularly discloses a tunnel double-liquid grouting material stabilizer and a preparation method and application thereof. The tunnel double-liquid grouting material stabilizer comprises the following raw materials: a water reducing agent and cellulose in a weight ratio of (2.1-2.6): (3-4), and the water reducing agent is prepared by the following steps: mixing isopentenol polyoxyethylene ether, acrylic acid and vinyltriethoxysilane in a weight ratio of 75: (5.4-8.1): (3.1-12.4), and reacting at 40-45 DEG C to obtain the water reducing agent; the preparation method comprises the step of blending the water reducing agent and the cellulose to obtain the stabilizing agent for the tunnel double-liquid grouting material. The product provided by the invention, cement, bentonite, water glass and water form the tunnel double-liquid grouting material with good stability, flow rate and stone rate.

The invention discloses a double-shell microcapsule modified magnesium hydroxide flame retardant and a preparation method and application thereof.The flame retardant takes magnesium hydroxide as a core, and the core is sequentially coated with an inner wall formed by 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and an outer wall formed by ethyl cellulose. The preparation method comprises the following steps: dissolving and mixing 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and vinyltriethoxysilane, and adding a catalyst to carry out a reaction; adding magnesium hydroxide, reacting, and drying the product to obtain DOPO-coated modified magnesium hydroxide; dissolving ethyl cellulose, adding DOPO-coated modified magnesium hydroxide, 2, 4 toluene diisocyanate, a dispersing agent and a catalyst, reacting, and drying a product, thereby obtaining the flame retardant. Through double-layer coating modification, the compatibility with a polymer matrix is enhanced, the reduction of the tensile property of the composite material is delayed, and the flame retardant property of the material is effectively improved.

This invention discloses a glass slide for preventing cross-infection and its preparation method, relating to the field of glass slide technology. The preparation method includes the following steps: S1: Pre-treating a porous glass slide using plasma technology to obtain a pre-treated porous glass slide; S2: Mixing hydrophobic silica sol, hydrogen-containing silicone oil, vinyltriethoxysilane, platinum catalyst, inhibitor, and isopropanol evenly to obtain a superhydrophobic coating; S3: Mixing hydrophilic silica sol, polyethylene glycol, and isopropanol evenly to obtain a hydrophilic coating; S4: (1) Coating the superhydrophobic coating onto the outer area of ​​the pores of the pre-treated porous glass slide and drying it to form a hydrophobic layer; (2) Coating the hydrophilic coating onto the inner area of ​​the pores of the pre-treated porous glass slide and drying it to form a hydrophilic layer, thereby obtaining a glass slide for preventing cross-infection.