32 results about "Octadecyltrimethoxysilane" patented technology

A surface treated particle comprising a plurality of inorganic, metallic, semi-metallic, and / or metallic oxide particles and a star-graft copolymer with looped and / or linear polymeric structure on a star-graft copolymer, obtainable by a heterogeneous polymerization reaction in the particle surface proximity, encapsulating at least a portion of said particles and a method for making the same. The surface treatment comprises: Si (w, x, y, z), where: w, x, y, and z are mole percent tetrafunctional, trifunctional, difunctional, and monofunctional monomeric units, respectively; w, x, y, and z are about 0-50, 0-50, 5-99, and 0-5, respectively; w is tetraethylorthosilicate; x is selected from the group consisting of γ-glycidoxypropyltrimethoxysilane, γ-methacryloxypropyltrimethoxysilane, methyltrimethoxysilane, n-propyltrimethoxysilane, isobutyltrimethoxysilane, n-hexyltrimethoxysilane, n-octyltrimethoxysilane, n-octadecyltrimethoxysilane, phenyltrimethoxysilane, 3-(trimethoxysilyl)propylsuccinic anhydride, heptadecafluorotrimethoxysilane, 3-isocyanatopropyltrimethoxysilane, 2-(diphenylphosphino)ethyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-mercaptopropyltrimethoxysilane, n-(trimethoxysilylpropyl)EDTA, pentafluorophenylpropyltrimethoxysilane, trifluoropropyltrimethoxysilane, and the triethoxy-containing counterparts of these monomers; y is selected from the group consisting of dicyclohexyldimethoxysilane, diethyldiethoxysilane, dimethyldichlorosilane, dimethyldiethoxysilane, dimethyldimethoxysilane, diphenyldiethoxysilane, diphenyldimethoxysilane, di-n-hexyldichlorosilane, n-hexylmethyldichlorosilane, methyldodecyldiethoxysilane, n-octylmethyldimethoxysilane, and the diethoxy-containing counterparts of these monomers; and z is selected form the group consisting of n-octadecyldimethylmethoxysilane, triethylsilanol, trimethylethoxysilane, trimethylmethoxysilane, and the ethoxy-containing counterparts of these monomers. Product(s) per se, defined as surface treated ZnO and / or TiO2, and the use of the product(s) per se in personal care formulations are excluded.

The invention discloses a preparation method of a super-hydrophobic silicon dioxide film. The method comprises the steps: SiO2 powder with super-hydrophobicity is obtained by surface modification; an electrophoretic technique is adopted to deposit the SiO2 powder on a metal matrix to obtain the super-hydrophobic SiO2 film. The electrophoresis matrix mainly comprises galvanized steel, aluminium, magnesium, titanium and alloy thereof. The super-hydrophobic SiO2 powder is obtained by hydrolysis condensation reaction of nanoscale SiO2 powder and long chain organosilane such as dodecyltrimethoxysilane, hexadecyltrimethoxysilane, octadecyltrimethoxysilane or chlorine and fluorine hydrophobic silane such as octadecyltrichlorosilane and total fluorine octyl trimethoxy silane under an alkaline condition. An electrophoretic liquid consists of acetone or alcohol, water, modified super-hydrophobic SiO2 powder and resin binder. The super-hydrophobic film which is prepared by the method is mainly used for aspects such as metal protection, self-cleaning and surface water mist icing prevention. The method has the advantages that the operation is simple; the cost is relatively low; the condition is mild; and the method is expected to be applied to industrial production on a large scale.

The invention discloses a preparation method of superhydrophobic oil-water separation membrane. The membrane has excellent oil-water separation effect, and can quickly separate oil-water mixture, andhas no pollution to the environment and good tolerance, and can be recycled. Polydiformyl biphthalate p-phenylenediamine (BPPAA) can be obtained by reacting biphenyltetracarboxylic dianhydride (BPDA)and p-phenylenediamine (PDA) as monomers at -5 DEG C for 12 hours. The polymer is a precursor for synthesizing high molecular weight polyimide (PI), and a PAA nanofiber membrane is prepared by an electrospinning technique and imidized at 300 DEG C to form a PI membrane. The layer-by-layer self-assembly of the PI membrane is performed by using ferric chloride (FeCI3) and phytic acid (PA) for initially modifying the PI membrane, and then trimethoxyoctadecylsilane (TMOS) is used for the modification of the membrane to obtain the core material. Various analytical testing methods are used for characterizing the material, and the efficacy of the super-hydrophobic oil-water separation membrane can be verified.

The invention discloses a method for preparing hydrophobic cellulosic organic nano clay composite heavy-metal ion adsorbing ceramsites and belongs to the field of composite materials. The method comprises the steps of firstly carrying out organizing treatment on sodium-based montmorillonite so as to obtain organic montmorillonite and change hydrophilic montmorillonite into hydrophobic montmorillonite, then, depositing a titanium dioxide film on the surface of a cellulose acetate film by a surface sol-gel method, carrying out pulping, then, preparing hydrophobic composite cellulose acetate film pulp by using an octadecyl trimethoxy silane toluene solution, loading the hydrophobic composite cellulose acetate film pulp and the organic montmorillonite to a high-speed emulsifying homogenizer together for intercalation, and finally, carrying out granulating and calcining, thereby obtaining the ceramsites. The material prepared by the method has a superficial hydrophobic effect and has good adsorption to heavy-metal ions, the heavy-metal ions can be recovered by a calcining method, no waste gas and waste liquid is discharged during preparation, and the product is biodegradable and environment-friendly.

The invention discloses a preparation method of a super-hydrophobic flame-retardant coating with an excellent performance. The preparation method comprises the following steps: dispersing in a mixed solution of absolute ethyl alcohol and ammonia water, ultrasonically stirring, heating, and adding octadecyl trimethoxysilane into the mixed solution to obtain a solution A; dissolving bisphenol A epoxy resin into absolute ethyl alcohol, and performing ultrasonic stirring to obtain a solution B; uniformly mixing the solution A and the solution B, rapidly adding TEOS, adding a flame retardant intermediate, and continuously stirring to obtain a suspension C; and spraying the suspension C onto a substrate for curing to obtain the super-hydrophobic flame-retardant coating. The flame-retardant super-hydrophobic coating with good mechanical stability and chemical stability is successfully prepared by combining a micro-nano structure with epoxy resin, the coating is low in preparation cost, and the preparation technology is simple and is easily applied to industrial production.

The invention discloses a nanoprobe applied to <19>F magnetic resonance imaging and photothermal therapy and a preparation method of the nanoprobe. According to the invention, a one-step packaging method is adopted, and perfluor crown-ether is fixed to nano-particles Cu1.75S through polysuccinimide modified by alkyl chains and trimethoxyoctadecylsilane, so that the nanoprobe applied to <19>F magnetic resonance imaging and photothermal therapy is obtained. According to the nanoprobe synthetize by adopting the preparation method, due to the inside Cu1.75S core, and polyamino acid and silicon layers coating the surface, the nanoprobe has relatively high biological stability. The in-vivo magnetic resonance imaging and the photothermal therapy effects prove that the nanoprobe is expected to serve as a multi-function reagent for carrying out the local photothermal therapy under the guidance of the <19>F magnetic resonance imaging with high sensitivity, the result can attract extensive attention in the fields of material science, nanometer science, biological medicine and the like, and the nanoprobe is suitable for being applied in biomedical detection.

The invention discloses a surface capable of adjusting and controlling rebound time of liquid drops and a preparation method of the surface. The method comprises the following steps: a primary microstructure surface is prepared from a silicone material on a substrate; titanium dioxide powder is mixed with anhydrous ethanol, a titanium dioxide suspension is prepared ultrasonically, octadecyltrimethoxysilane is added, ultrasonic treatment is performed continuously for uniform mixing, and a superhydrophobic titanium dioxide spin coating liquid is obtained after reaction; the primary microstructure is adhered to a sucker opening of a spinner for spinning, and a microstructure culture dish is taken out with tweezers after spinning for solidification; the substrate is dried by a blast drying oven; a superhydrophobic secondary microstructure film meeting requirements is prepared; the edge of the film is fixed by a clamp with the middle in a suspended state, and clamping force of the clamp isadjusted. The edge of the superhydrophobic film is fixed to form a trampoline structure without bottom support, the effect of elastic force of the film on liquid drops is increased in a flexible structure manner, and the effect of prompting the liquid drops to rebound faster and more completely is achieved.

The invention discloses a phosphorus-doped ultrathin hollow carbon nitride nanosphere catalyst for hydrogen production by efficient photocatalytic cracking of water, and belongs to the field of catalytic chemistry and nanoscience. The catalyst is prepared according to the following steps: firstly, by taking tetraethyl orthosilicate and octadecyltrimethoxysilane as precursors and ethanol, ammonia water and water as solvents, preparing a SiO2 template by utilizing a method; then taking cyanamide as a precursor, and preparing a hollow carbon nitride nanosphere (H-CNS) carrier through a negative pressure ultrasonic method; and finally, with red phosphorus as a phosphorus source and a chemical vapor deposition method, depositing phosphorus atoms on the H-CNS carrier, so as to obtain the phosphorus-doped P / UH-CNS composite catalyst. In the preparation process, the pressure difference generated on the inner surface and the outer surface of the H-CNS carrier can thin the shell of the originally loose H-CNS carrier. The material is novel, the preparation process is simple, the product morphology is regular and controllable, and the catalyst shows good photocatalytic hydrogen production activity and stability.

The invention discloses a novel hydrophobic modified nano-silicon material, aiming to solve the problem that the oil field injecting nano-silica material can not be applied to the polymer injection well and the alkaline-surfactant-polymer flooding injection well. The novel hydrophobic modified nano-silicon material is prepared according to the following steps: adding absolute alcohol into water-dispersible nano-silicon, dropwise adding the ethanol solution of silane coupling agent, and finally dropwise adding 1% of the ethanol solution of trimethoxyoctadecylsilane, wherein the mass of the ethanol solution of silane coupling agent is 0.5-2% of that of the nano-silicon. The novel hydrophobic modified nano-silicon material can be uniformly dispersed into a variety of solvent media including water, isopropyl alcohol, ethanol, ethylene glycol, xylene and acetone and can form a super-hydrophobic layer on the surface of the rock core.

The invention belongs to the technical field of oil-water separation, and particularly relates to silanized boron nitride modified super-hydrophobic sponge for efficient oil / water separation and a preparation method thereof. The preparation method comprises the following steps: dipping commercial melamine sponge into a suspension solution of octadecyltrimethoxysilane-modified boron nitride, and then conducting drying to obtain the modified super-hydrophobic sponge. The silanized boron nitride modified super-hydrophobic sponge obtained by the invention shows better super-hydrophobicity, the oiladsorption capacity of the silanized boron nitride modified super-hydrophobic sponge is 50-100 times that of commercial melamine sponge, and after 20 continuous absorption periods, the absorption performance is not obviously reduced, and it is indicated that the silanized boron nitride modified sponge has remarkable recyclability. The prepared modified super-hydrophobic sponge has excellent flameretardant property. Compared with a traditional method that the super-hydrophobic coating is physically attached to the sponge, the stability of the silanized boron nitride modified sponge is remarkably improved due to covalent binding of alkyl silane and the surface of the framework.

The invention discloses a preparation method of a cornstalk fiber material for an asphalt road and application thereof and relates to a preparation method of fiber modified asphalt materials applied to asphalt pavements, which aims to solve the problem that the pavement performance of the conventional asphalt concrete doped with plant fibers needs to be improved. The preparation method comprises the following steps: 1, separating husks of plant cornstalks; 2, crushing and grinding cornstalk husks to obtain cornstalk fibers; 3, immersing the cornstalk fibers into a sodium hypochlorite solution;4, adding the cornstalk fibers into a cerous nitrate ethanol solution, adding an ethanol solution of sodium hydroxide, and drying to obtain a cornstalk fiber material adsorbed with ceric oxide nanoparticles; 5, adding the cornstalk fiber material into a normal hexane solution of octadecyltrimethoxysilane to hydrolyze; and 6, doping a flame retardant. The cornstalk fiber material is applied to asphalt paste, the fibers are uniformly dispersed, the stalk fibers have excellent oil absorption properties, and the thermal stability is excellent.

The invention discloses mesoporous carbon-coated silicon negative electrode material preparation, product and application. After nanometer silica fume is subjected to ultrasonic dispersion, tetraethoxysilane and octadecyltrimethoxysilane are added, stirring at room temperature is carried out, centrifugation and firing are carried out, and nanometer silicon with the surface coated with mesoporous silicon is obtained. With the mesoporous silicon-coated nanometer silicon as a template, a carbon source and an organic solvent are added, mixing and calcinations are carried out to realize carbonization, and mesoporous carbon-coated silicon composite powder is obtained. The composite powder is washed in a hydrogen fluoride solution, mesoporous silicon and silicon oxides are removed, and after drying, a mesoporous carbon-coated silicon negative electrode material is obtained. The particle size of the mesoporous carbon-coated silicon negative electrode material obtained in the method is 50 to 80nm, the material is assembled into a button cell, and through test, the material has high reversible capacity, excellent multiplying power performance and high cycle stability.

The invention discloses a preparation method for compound fertilizer special for high-yield green rice. The preparation method comprises the following steps that chicken manure, decomposed cow dung, camellia oil cakes, peanut shell powder, straw powder, zeolite powder and calcined kaolin are uniformly mixed, water is added, an EM strain stock solution is added, complete mixing is carried out, andfermenting is carried out so as to obtain a fermented material; and EDTA(ethylene diamine tetraacetic acid) chelated manganese, ferric nitrate hexahydrate, ammonium sulfate, ammonium hydrogen phosphate, plant ash, calcium-magnesium phosphate fertilizer, gypsum powder and a hydrophobic slow-release agent are added in the fermented material, uniform mixing is carried out, and granulating and dryingare carried out so as to obtain the compound fertilizer special for the high-yield green rice, wherein the hydrophobic slow-release agent is prepared through a process which comprises the following steps of uniformly mixing silicon dioxide hydrogel, dodecyltrimethylammonium bromide, fatty alcohol-polyoxyethylene ether and water, sequentially adding alpha,omega-dihydroxy polydimethylsiloxane, octadecyltrimethoxysilane and oxidized polyethlene wax in a stirring state, carrying out stirring continuously and carrying out homogenizing treatment so as to obtain the hydrophobic sustained-release agent.

The invention relates to the field of functionalized adsorbing materials, and provides a preparation method of a C18-modified ordered mesoporous carbon material. The preparation method comprises the following steps: 1) adding trimethoxyoctadecylsilane in a toluene solution, and stirring and uniformly mixing at room temperature; 2) adding an ordered mesoporous carbon material in the stirred solution and performing uniform ultrasonic dispersion; 3) performing backflow on the mixed solution for 24 h at 175-185 DEG C; and 4) taking out the reacted mixed solution, filtering by a suction filtrationdevice, and washing and drying, thus obtaining the C18-modified ordered mesoporous carbon material. The C18-modified ordered mesoporous carbon material prepared according to the embodiment of the application can enhance the adsorption capacity for organic matters through interactions between carbon chains and the hydrophobic interaction, and nanochannels provided by the ordered mesoporous carbon can eliminate the interference of macromolecular substances through a molecular size effect, so that the purpose of selectively adsorbing micromolecular organic matters is achieved.

The invention discloses a lipase-metal palladium nanoparticle composite catalyst as well as a preparation method and application thereof, and the preparation method of the composite catalyst comprises the following steps: coating the surface of silicon dioxide with polydopamine to obtain SiO2@PDA; reducing the palladium precursor by using polydopamine coated on the surface of the silicon dioxide to obtain SiO2@PDA@Pd; then, performing hydrophobic modification on the mSiO2@PDA@Pd to obtain mSiO2@PDA@Pd; and finally, adsorbing the lipase on the surface to obtain the product. The PDA enables the palladium precursor to be adsorbed to the surface of SiO2 (at) PDA and then to be reduced into metal palladium nano particles in situ through nitrogen-containing groups and phenolic hydroxyl groups, wherein the palladium nano particles are uniformly distributed and uniform in particle size; and octadecyltrimethoxysilane is connected with other hydroxyl groups to change the hydrophobicity of the carrier, so that the adsorption of CALB is facilitated, the hydrophobicity provided for the catalyst is beneficial to the dispersion of the catalyst in an organic solvent, and the catalytic ability of the catalyst is further improved.

The invention discloses a water-in-oil type cosmetic product based on camellia oleifera component and a preparation process thereof; the preparation process comprises the following steps: placing camellia oleifera essential oil in a compressor, concentrating to 2 / 3 in vacuum, and then performing natural cooling or blast-cooling to room temperature for later use; sequentially adding ginseng polysaccharide, collagen polypeptide, an oil-in-water emulsion matrix, octadecyltrimethoxysilane, glycerol monolaurate and propylene glycol fatty acid ester into the concentrated camellia oleifera essential oil at room temperature, performing stirring at a high speed by using a stirrer, emulsifying and uniformly performing mixing to prepare a mixed reaction solution; and putting the mixed reaction liquid, a humectant, a thickening agent, an ultraviolet light absorber and a preservative into a stirrer under sterile, disinfection and cleaning operation conditions, and removing essential oil suspended on the surface to obtain the water-in-oil type cosmetic product. According to the invention, the ultraviolet light absorber is mixed, so that the light stability and the good ultraviolet light absorption effect are realized, the use performance is further improved, the skin irritation can be reduced, and the application range is wide.

The invention discloses a preparation method of a super-infiltrated silicone oil type liquid filling surface. Palygorskite powder and octadecyltrimethoxysilane are dispersed in ethyl alcohol, mixed liquid is formed, then an aluminum phosphate adhesive water solution is added, then the material is stirred at the temperature of 20-30 DEG C for 10-20 min, and uniform suspension is obtained; the suspension is sprayed to the surface of a magnesium piece with a spraying method, the magnesium piece is heated at the temperature of 110-120 DEGC for 1.5-2.0 h, a coating is completely cross-linked and cured, and an APT-OTMS-AP coating is obtained; and silicone oil is dropwise added into the surface of the super-hydrophobic APT-OTMS-AP coating, and the super-infiltrated silicone oil type liquid filling surface is obtained after standing. The preparation process of the liquid filling surface is simple, the raw materials are cheap and environmentally friendly, the liquid filling surface has extremely high hydrophobicity and excellent wear resistance and impact resistance, and even after being ground by abrasive paper and impacted by gravel, the liquid filling surface is still kept at high-levelhydrophobicity. In addition, the liquid filling surface has good corrosion resistance.

The invention belongs to the technical field of composite materials, and particularly discloses a super-hydrophobic stainless steel mesh composite material and a preparation method and application thereof.Fe2O3-NCs is evenly loaded on the surface of a stainless steel mesh SSM, surface roughening of the stainless steel mesh is facilitated, and therefore the loading rate and adhesion of a super-hydrophobic component octadecyl trimethoxy silane OTS on the surface of the stainless steel mesh are increased; the super-hydrophobic SSM composite material has super-hydrophobicity and super-lipophilicity, and an oil-water separation test proves that the super-hydrophobic SSM composite material has high oil-water separation efficiency in an oil-water mixture containing toluene, n-octane, gasoline, n-hexane, chloroform, dichloroethane, cyclohexane and corn oil, and is strong in repeated recoverability.

The invention discloses a preparation method for a wear-resisting super-hydrophobic thin film. Firstly, the electro-deposition technology is adopted for preparing a layer of SiO2 thin film on a metal base body, wherein the SiO2 thin film is high in mechanical strength and good in bonding force and is of a highly porous structure; and then the electrophoretic technology is adopted for filling a hole way of the above SiO2 thin film with super-hydrophobicity nanometer SiO2 powder subject to surface modification, and therefore the super-hydrophobic thin film with the excellent wear-resisting performance is obtained. The super-hydrophobicity nanometer SiO2 powder is prepared through graft modification of nanoscale SiO2 powder and long-chain organosilane like dodecyltrimethoxysilane, hexadecyltrimethoxysilane, octadecyltrimethoxysilane or hydrophobicity silane containing chlorine, fluorine and the like under the alkaline condition, wherein the hydrophobicity silane containing chlorine, fluorine and the like include octadecyltrichlorosilane, perfluor octyl group trimethoxy silane and the like. The method for preparing the super-hydrophobic thin film is simple in operation, low in cost and soft in condition and is expected to be applied to industrial production in large scale.

The invention discloses a compound fertilizer for promoting increase of the yield and quality of organic rice. The compound fertilizer comprises the raw materials in parts by weight: 20-35 parts of ammonium chloride, 4-12 parts of a kiln ash potash fertilizer, 10-20 parts of ground phosphate rock, 40-80 parts of an organic fertilizer, 0.1-0.2 part of EDTA chelated manganese, 0.2-0.4 part of iron hexaurea trinitrate, 6-10 parts of a slow-release agent and 1-3 parts of ultra-fine toughening powder. The ultrafine toughening powder is prepared by the following processes: mixing silica hydrogel, dodecyl trimethyl ammonium bromide, fatty alcohol-polyoxyethylene ether and water evenly, then adding oxidized polyethylene wax, an ionic emulsifier and sodium pyrosulfite, mixing, introducing nitrogengas and pressurizing in a sealed state, heating, stirring, discharging, cooling, adding octadecyltrimethoxysilane in a stirring state, continuing to stir, and filtering to obtain ultra-fine toughenedpowder. The compound fertilizer can improve the quality of rice, reforms the structure of soil aggregates, makes soil looser, prevents soil hardening and raises soil fertility.

The invention discloses a hydrophobic silicon quantum dot capable of being subjected to surface chemical modification. The surface of the hydrophobic silicon quantum dot contains hydroxyl and amino. The preparation method of the hydrophobic silicon quantum dot comprises the following steps: dissolving a silicon source and tannic acid in ultrapure water, carrying out stirring for reaction, adding absolute ethyl alcohol into the obtained silicon quantum dot solution, adding octadecyl trimethoxy silane for reaction, separating out solid, carrying out filtering, and carrying out washing and dryingto obtain the hydrophobic silicon quantum dot. The prepared silicon quantum dot is high in purity, good in water solubility and good in stability, the surface of the silicon quantum dot can be subjected to various chemical modifications at a same time, can be complexed with various metal ions, has hydrophobicity, cannot deteriorate after long-term placement at room temperature, and has good anti-tumor activity. The preparation method has the advantages of low temperature requirement, easy control, high reaction efficiency, simple preparation, easily available raw materials, low cost and easyrealization of industrial production. The invention also discloses an application of the hydrophobic silicon quantum dot in the fields of biological imaging and anti-cancer drug preparation.

The invention relates to a method for preparing a mesoporous SiO2 / CdS composite nanosphere. The method is characterized by comprising the following steps of: hydrolyzing orthosilicate ester and C18TMS under the catalysis of ammonia water to prepare an SiO2 nanosphere, and performing reaction for 4 to 24 hours under the condition of 0 to 90 DEG C by taking the SiO2 nanosphere as a template, taking a cadmium salt as a cadmium source and taking thiourea as a sulfur source to obtain an SiO2 / CdS composite nanosphere; and calcining the SiO2 / CdS composite nanosphere at high temperature to obtain the mesoporous SiO2 / CdS composite nanosphere, and performing reaction for 2 to 8 hours at 30 to 200 DEG C by using H2S to obtain the mesoporous SiO2 / CdS composite nanosphere with a diameter of 270 to 400nm. In the process of preparing the mesoporous SiO2 / CdS composite nanosphere, reaction conditions are mild, simple equipment is required, large-scale preparation is facilitated, and the method is suitable for industrial production.

The invention relates to the field of functionalized adsorbing materials, and provides a preparation method of a C18-modified ordered mesoporous carbon material. The preparation method comprises the following steps: 1) adding trimethoxyoctadecylsilane in a toluene solution, and stirring and uniformly mixing at room temperature; 2) adding an ordered mesoporous carbon material in the stirred solution and performing uniform ultrasonic dispersion; 3) performing backflow on the mixed solution for 24 h at 175-185 DEG C; and 4) taking out the reacted mixed solution, filtering by a suction filtrationdevice, and washing and drying, thus obtaining the C18-modified ordered mesoporous carbon material. The C18-modified ordered mesoporous carbon material prepared according to the embodiment of the application can enhance the adsorption capacity for organic matters through interactions between carbon chains and the hydrophobic interaction, and nanochannels provided by the ordered mesoporous carbon can eliminate the interference of macromolecular substances through a molecular size effect, so that the purpose of selectively adsorbing micromolecular organic matters is achieved.

The invention provides a hydrophobic flame retardant and a preparation method thereof, and relates to the technical field of flame retardant modification. The hydrophobic flame retardant contains 70-95% by mass of a flame retardant and 5-30% by mass of a modifier; the flame retardant is one or more of an inorganic flame retardant, a component of a compound intumescent flame retardant and a simplesubstance type intumescent flame retardant; the modifier is one or more of tetraethyl silicate, vinyl trimethoxy silane, vinyl triethoxy silane, vinyl tri(2-methoxyethoxy) silane, polyoxyethylene octyl phenol ether-10, dodecyl trimethoxy silane, dodecyl triethoxy silane, hexadecyl trimethoxy silane, hexadecyl triethoxy silane, octadecyl trimethoxy silane and octadecyl triethoxy silane. The hydrophobic flame retardant is prepared through multiple surface modification, the flame retardant is endowed with high hydrophobicity, meanwhile, the flame retardant performance of the flame retardant is improved, the compatibility between the flame retardant and a polymer matrix is good, the preparation method is simple, and the cost is low.

The invention discloses a method for preparing a super-hydrophobic flame-retardant coating with excellent performance. The preparation steps are as follows: take and disperse in a mixture of absolute ethanol and ammonia water, heat after ultrasonic stirring, and stearyltrimethoxysilane Add it into the mixed solution to obtain solution A; take bisphenol A epoxy resin and dissolve it in absolute ethanol, and use ultrasonic stirring to obtain solution B; mix solution A and solution B evenly, then quickly add TEOS, and add The flame retardant intermediate continues to stir to obtain a suspension C; the suspension C is sprayed on the substrate to cure, and a super-hydrophobic flame-retardant coating is obtained; the combination of micro-nano structure and epoxy resin in the present invention successfully prepares a A flame-retardant superhydrophobic coating with good mechanical stability and chemical stability, the coating has low preparation cost, simple preparation process, and is easy to realize large-scale industrial application.

The invention relates to a hollow mesoporous silicon dioxide nanoparticle and a preparation method thereof. The preparation method comprises the following steps: magnetically stirring and mixing ethanol, deionized water and ammonia water at a certain temperature, adding ethyl orthosilicate for continuous reaction, adding premixed ethyl orthosilicate and trimethoxyoctadecylsilane for continuous reaction, vacuum drying an obtained mixture after being etched by sodium carbonate, calcining at 550 DEG C to obtain the hollow mesoporous silicon dioxide nanoparticle. The nanoparticle is dispersed in ultrapure water, and polymine is added to obtain a hollow mesoporous silicon dioxide nano-carrier after mixing; and the hollow mesoporous silicon dioxide nano-carrier is mixed with a gene to obtain a hollow mesoporous silicon dioxide gene nano-carrier. The hollow mesoporous silicon dioxide nano-carrier prepared by the preparation method disclosed by the invention has the advantages of good dispersity, high gene loading capacity and high transfection efficiency (twice of 25kDa PEI), and has a practical value of clinical application.

The invention relates to radiation-proof thermal-insulation glass and a preparation method thereof, belongs to the technical field of radiation-proof glass, and aims to solve the dispersion and adhesion problem, in a polycarbonate glass surface, of indium tin oxide particles. The radiation-proof thermal-insulation glass is prepared from, by weight, 80-92 parts of polycarbonate particles, 30-40 parts of indium tin oxide, 5-9 parts of octadecyltrimethoxysilane, 5-9 parts of trimethoxyoctylsilane, 10-14 parts of dibutyl sebacate and 50-60 parts of a solvent. According to the radiation-proof thermal-insulation glass, the ability of the indium tin oxide particles adhering to the polycarbonate glass surface is relatively strong, and transparency of the radiation-proof thermal-insulation glass isrelatively high; and moreover, ability of blocking an infrared-light region and an ultraviolet-light region in a solar spectrum is straightened, so that the functions of insulating heat and preventing radiation are achieved.

The invention provides a cleaning agent for new energy automobiles. The cleaning agent comprises the following components in parts by weight: 15-20 parts of octadecyltrimethoxysilane modified polyquaternium-10, 10-15 parts of cetyl myristoleate modified 2-[5-[1,1-dimethyl-3-(4-sulfobutyl)-1,3-dihydrobenzo[e]indol-2-ylidene]-amyl-1,3-dinenyl]-1,1-dimethyl-3-(4-sulfobutyl)-1H-benzo[e]indol onium inner salt sodium salt, 15-20 parts of C12-C14 fatty alcohol-polyoxyethylene ether modified polymethyltriethoxysilane and 40-50 parts of water. The invention further discloses a preparation method of thecleaning agent for the new energy automobiles. The disclosed cleaning agent for the new energy automobiles has excellent comprehensive performance, the cleaning effect is obvious, the cleaning efficiency is high, the using amount and the water adding amount are small, the protective effect to car paint is good, and meanwhile, the advantages of luster enhancement, static electricity resistance anddust prevention are achieved.

The invention discloses an in-situ ultrasonic flame-retardant protection method for a wood structure ancient building in the northwest region, and belongs to the technical field of wood structure flame retardance. The method is characterized in that according to a biomineralization principle, ultrasonic waves are used as driving force, water and ethyl alcohol are used as flame retardant carrying solvents, and in-situ flame-retardant modification is conducted on wood through a sol-gel method; through permeation treatment of octadecyltrimethoxysilane on a wood component, the octadecyltrimethoxysilane and the wood component fibers form an interactive three-dimensional network structure in a wood component matrix through hydrogen-bond interaction, and the network structure not only has an excellent fiber reinforcing effect, but also can effectively immobilize zinc phytate in the wood component matrix, so that the stability of the wood component matrix is improved; ultrasonic waves can be used for opening a new reaction channel due to the characteristics of good directivity, moderate vibration frequency range, low energy transfer attenuation and the like; and the flame-retardant modification treatment on the wood material of the ancient wood-structure building is realized by physical and chemical methods under the condition of minimum intervention.