1604 results about "Triethoxysilane" patented technology

The invention relates to the field of membrane materials, and discloses an epoxy modified starch-based degradable membrane and a preparation method thereof, the epoxy modified starch-based degradable membrane comprises epoxidized starch, modified nanocellulose and a plasticizer; the modified nano cellulose is prepared by mixing a modified composite filler, a nano cellulose dispersion liquid and a zinc acetate dihydrate aqueous solution; the nano-cellulose dispersion liquid is prepared by adhering polytannic acid formed by oxidation and self-polymerization of tannic acid to the surface of nano-cellulose; the modified composite filler is prepared by performing carboxylation modification on nano titanium dioxide coated fumed silica nanoparticles by using succinic anhydride and gamma-aminopropyltriethoxysilane, then reacting with polyethyleneimine to obtain an aminated composite filler, and finally grafting glycidyl dodecyl dimethyl ammonium chloride to the surface of the aminated composite filler. The prepared film material is high in tensile strength, has certain hydrophobicity, and has good heat resistance, antibacterial property and flame retardant property.

The invention relates to the field of textile materials, and particularly discloses a graphene enhanced polyester yarn and a preparation method thereof.The preparation method comprises the following steps that silicon dioxide aerogel serves as a porous carrier to be loaded with graphene, and a graphene-porous carrier composite material is prepared; the graphene-porous carrier composite material is subjected to modification treatment through vinyl trimethoxy silane and 3-amino propyl triethoxy silane, and then a modified graphene composite material is prepared; reacting the modified graphene composite material, a styrene monomer, an acrylate monomer and an initiator to prepare modified graphene; mixing the prepared modified graphene with polyester chips, and then carrying out melt spinning to prepare graphene enhanced polyester yarns; the invention further discloses the graphene enhanced polyester yarn prepared by adopting the preparation method. The preparation method has the characteristics that the dispersion of the graphene in the polyester is improved, and the direct interface compatibility of the graphene and the polyester fiber is improved, so that the mechanical property of the polyester yarn is improved.

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

Disclosed in the present invention are a fluorosilicone-modified low-surface-energy antifouling coating and a preparation method therefor. The coating comprises the following components in parts by weight: 11-15 parts of butyl acrylate, 3-4 parts of dodecafluoroheptyl methacrylate, 3-4 parts of vinyl-terminated polydimethylsiloxane, 3-4 parts of 2-hydroxy-4-acryloyloxybenzophenone, 30-38 parts of methyl isobutyl ketone, 0.15-0.25 parts of azobisisobutyronitrile, 0.1-0.2 parts of sodium hydroxide, 2-3 parts of modified titanium dioxide nanoparticles, and 0.5-1.5 parts of 3-aminopropyltriethoxysilane. In the present invention, vinylpentamethyldisiloxane reacts with decamethylcyclopentasiloxane to prepare vinyl-terminated polydimethylsiloxane; a titanium dioxide precursor is mixed with polydopamine nanoparticles for modification to prepare modified titanium dioxide nanoparticles; and then the components above are mixed to prepare the fluorosilicone-modified low-surface-energy antifouling coating. The coating has low surface energy and good adhesion and ultraviolet resistance.

The invention discloses a graphene nanometer heavy anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings. The coating is prepared from the following components in parts by mass: 50 to 70 parts of diallyl bisphenol A type epoxy resin, 8 to 15 parts of histidine modifier, 12 to 20 parts of graphene nano composite modified filler, 5 to 10 parts of curing agent, 0.5 to 2 parts of flatting agent and 0.3 to 1 part of defoaming agent. The preparation method of the histidine modifier comprises the following steps: carrying out a Schiff base reaction on 1-palmitoyl-2-oleoyl ethanolamine and N-formyl-L-histidine to generate an intermediate A; reacting with a spiro quaternization reagent to form a quaternary ammonium salt intermediate B; and then compounding with aminopropyltriethoxysilane and silicotungstic heteropoly acid salt to obtain the product. The graphene nano-composite modified filler is prepared by modifying the surface of a graphene oxide / bentonite mutual intercalation layer structure through allyl trimethoxy silane. The graphene nano heavy anti-corrosion coating prepared by the invention forms a high-density cross-linked network, and has excellent barrier property, strong adhesive force, impact resistance and long-acting anti-corrosion performance.

The invention relates to the technical field of corrosion resistance, in particular to a corrosion-resistant and wear-resistant copper insert and a preparation method thereof.The copper insert is subjected to plating treatment in an ionic liquid electroplating mode, then the surface of a plating layer is subjected to hole sealing treatment, and a nickel-copper-composite halloysite nanotube layer is electrically deposited on the surface of the formed copper insert; the preparation method comprises the following steps: taking a halloysite nanotube as a nano loader of a corrosion inhibitor, and coating with dopamine to obtain a composite halloysite nanotube; in the hole sealing liquid, the composite halloysite nanotube is used as a filler, silane modified polyurethane is used as a base material, the silane modified polyurethane is a prepolymer synthesized by using isophorone diisocyanate and polytetramethylene ether glycol as raw materials, octylamine ring-opened 3-(2, 3-epoxypropoxy) propyltrimethoxysilane is used as a chain extender, and the silane modified polyurethane is used as the base material. And 2-(perfluorodecyl) ethanol and aminopropyltriethoxysilane are used as end-capping reagents, so as to prepare the high-temperature-resistant coating.

The invention provides a wear-resistant, transparent, flexible and fluoride-free super-hydrophobic composite coating and a preparation method thereof. The preparation method comprises the following steps: mixing hydroxyl-terminated polydimethylsiloxane, gamma-aminopropyltriethoxysilane and dibutyltin dilaurate for reaction to obtain a modified precursor solution, adding swelled epoxy resin into the modified precursor solution, and heating for reaction to obtain siloxane modified epoxy resin; the preparation method comprises the following steps: dispersing nano silicon dioxide in an ethyl acetate solution to form a SiO2 suspension; and uniformly mixing the modified epoxy resin with a SiO2 suspension, adding polyether amine as a curing agent, stirring and mixing, and constructing the epoxy resin / hydroxyl-terminated polydimethylsiloxane / nano-silica super-hydrophobic coating on a substrate by adopting an air spraying mode. According to the preparation method disclosed by the invention, the super-hydrophobic coating with excellent transparency and flexibility and good adhesive force and wear resistance can be prepared, and the super-hydrophobic coating has a wide application prospect in the fields of wearable electronic equipment, photoelectric devices and the like.

The invention relates to a preparation method of a hydrophobic and oleophobic PTFE membrane, and belongs to the technical field of PTFE membrane preparation. Aiming at the problems that an existing PTFE membrane is difficult to construct a micro-nano multi-stage coarse structure and has a synergistic effect with low chemical surface energy, the hydrophobic and oleophobic properties are insufficient and the structural stability is poor, the key points of the technical scheme provided by the invention are as follows: firstly, carrying out ethanol ultrasonic cleaning on a PTFE base membrane of 20-30 microns, and carrying out vacuum plasma treatment to form a nano coarse structure and oxygen-containing polar group active sites; then, under the protection of nitrogen, immersing into an ethanol solution containing perfluorodecyltriethoxysilane, dibutyltin dilaurate and nano cellulose whiskers, carrying out hot-pressing compounding with PET non-woven fabric, carrying out heat treatment, and finally, coating with a fluorine-containing polymer nano fiber layer through an electrostatic spinning process; the composite hydrophobic layer with the synergistic effect of a micro-nano multistage coarse structure and chemical low surface energy is formed, the water contact angle is larger than or equal to 155 degrees, and the oil contact angle is larger than or equal to 130 degrees. The PTFE film prepared by the preparation method can be used in the fields of waterproof breathable materials, self-cleaning surfaces, oil-resistant packaging and the like.

The invention relates to the field of drain pipes, and discloses an antibacterial polypropylene noise-reduction drain pipe and a preparation method thereof, the antibacterial polypropylene noise-reduction drain pipe comprises polypropylene, modified glass fiber, an antibacterial additive, a compatilizer and a stabilizer; the modified glass fiber is prepared by performing formylation modification on glass fiber by using 3-aminopropyltriethoxysilane and glutaraldehyde, grafting triethylene tetramine and DOPO into a glass fiber structure, and then grafting a hindered phenol antioxidant; the antibacterial additive is prepared by compounding chitosan Schiff base and modified nano titanium dioxide, the chitosan Schiff base is prepared by utilizing a Schiff base reaction between chitosan and vanillin, and the modified nano titanium dioxide is prepared by utilizing isocyanate propyl triethoxy silane and ethyl glycolate to modify nano titanium dioxide. By adding the modified glass fiber and the antibacterial additive, the pipe is endowed with excellent heat resistance, aging resistance, flame retardance and antibacterial performance.

The invention provides weather-resistant anti-freezing road concrete and a preparation method thereof, and belongs to the technical field of concrete. The concrete comprises the following components: sulphoaluminate cement, Portland cement, silica fume, fly ash, modified granite gravel coarse aggregate, medium sand fine aggregate, silica fume blended fiber, silica fume blended polyacrylonitrile fiber, a composite air entraining agent, a functional modifier, a composite antifreeze agent, pre-absorbent zeolite powder and the like. The preparation method comprises the following steps: modifying granite macadam with Al (H2PO4) 3, SiO2 and methoxypolyethylene glycol triethoxysilane, and modifying with a lithium silicate aqueous solution to obtain the modified granite macadam coarse aggregate. The composite air entraining agent comprises a JRY-Q air entraining agent and sodium alpha-olefin sulfonate. The functional modifier is prepared from gas phase method spherical nano silicon dioxide and nano alpha-Al2O3. The composite antifreeze agent comprises ethylene glycol butyl ether acetate and modified calcium carbonate. The modified calcium carbonate is obtained by sequentially modifying nano calcium carbonate with calcium chloride, a KH-550 silane coupling agent and stearic acid.

The invention relates to the technical field of conductive materials, in particular to a high-concentration dispersion system and a preparation method thereof. The high-concentration dispersion system comprises a conductive agent, a dispersing agent, a solvent and a viscosity reduction auxiliary agent, the conductive agent is modified carbon nanotubes, the dispersing agent is modified polyvinylpyrrolidone, the solvent is N-methyl pyrrolidone or deionized water, and the viscosity reduction auxiliary agent is piperazine anhydrous; wherein the modified carbon nano tube is obtained by mixing and heating a carbon nano tube and a mixed acid solution of nitric acid and sulfuric acid, then cooling, filtering, washing, drying, then dispersing in 75% ethanol, and finally adding 3-[3-carboxyl allylamido] propyltriethoxysilane for modification; the modified polyvinylpyrrolidone is obtained by heating polyvinylpyrrolidone at 310-330 DEG C and then oxidizing the polyvinylpyrrolidone. The conductive agent content of the high-concentration dispersion system is high, the conductive agent accounts for 15%-20% of the high-concentration dispersion system by mass, and the high-concentration dispersion system is low in viscosity, high in dispersity and good in conductivity.

The invention discloses a corrosion-resistant polysilsesquioxane modified polyurethane emulsion and a preparation method thereof, and belongs to the technical field of emulsions.The preparation method comprises the steps that gamma-aminopropyltriethoxysilane, namely APTES, is subjected to hydrolytic condensation under the catalysis of tetraethylammonium hydroxide, and POSS is prepared; the preparation method comprises the following steps: carrying out hydrolytic condensation reaction on APTES, synchronously adding phenyltrimethoxysilane in the hydrolytic condensation reaction, forming phenyl-amino difunctional POSS (Polyhedral Oligomeric Silsesquioxane) according to a molar ratio of phenyltrimethoxysilane to APTES of 1: 4, and grafting POSS and graphene oxide GO in dimethyl sulfoxide through amidation reaction to prepare a POSS / GO composite material; dispersing POSS / GO / Zn in the polyurethane prepolymer, adding a curing agent and a solvent, and stirring to form a homogeneous emulsion; through phenyl trapezoid polysilsesquioxane modification and dynamic reversible self-repairing network design, the wear resistance of the coating is improved, microcracks can be closed at the temperature of 60 DEG C, and the maintenance requirement is reduced; laser micro-nano structured base material treatment is combined, the adhesive force is increased to be larger than or equal to 20 MPa, and meanwhile a gamma-butyrolactone low-VOC solvent is adopted.

The invention provides a diaphragm and a preparation method thereof and a lithium ion battery, the diaphragm comprises a base membrane layer and a composite functional layer, the composite functional layer comprises hydrophobic SiO2 aerogel modified by a hydrophobic agent, a conductive ion polymer and a solid electrolyte, and the composite functional layer respectively accounts for 3-12wt%, 0.5-1.0 wt% and 0.5-1.5 wt% of the total mass of the diaphragm; the hydrophobic agent comprises trimethylchlorosilane, hexamethyldisilazane, perfluorooctyltriethoxysilane, polyvinylidene fluoride, polydimethylsiloxane and the like, the conductive ionic polymer comprises polyvinylpyrrolidone, lithium polymethacrylate, lithium polystyrene sulfonate, polyacrylamide and the like, and the solid electrolyte comprises lithium lanthanum titanium oxide, lithium lanthanum zirconium oxide, lithium lanthanum zirconium tantalum oxide and the like. The wettability is improved by the high porosity of the hydrophobic SiO2 aerogel, the stability and strong conductivity of a physical conductive network of the solid electrolyte and the ion affinity and amphoteric binding capacity of the conductive ion polymer are optimized, the electrochemical performance and thermal stability of the interface are optimized, and comprehensive optimization of the thermal-electric-interface performance of the diaphragm is realized through combination.

The invention relates to the technical field of polyethylene cables, in particular to a high-strength flame-retardant polyethylene cable and a preparation method thereof.The high-strength flame-retardant polyethylene cable is composed of a copper stranded wire core and a flame-retardant protective layer on the surface of the copper stranded wire core; the flame-retardant protective sleeve is made of a high-strength flame-retardant material; the high-strength flame-retardant material comprises the following components in parts by weight: 80-100 parts of low-density polyethylene, 5-10 parts of a flame retardant, 3-5 parts of a performance additive, 1-1.5 parts of filler, 0.1-0.2 part of a voltage stabilizer, 0.1-0.5 part of an antioxidant, 0.5-1 part of an initiator and 1-5 parts of a lubricant. The amino group on the surface of the silicon dioxide carrier treated by 3-aminopropyltriethoxysilane in the modification additive can be subjected to acid-base interaction with the phosphate group of APP to form chemical bridging; the interface bonding enables the APP and the modification additive to synchronously migrate to the surface of the material during combustion to cooperatively construct a protection layer, so that the problem of protection failure caused by migration rate difference of different flame retardants in a traditional flame-retardant system is solved, and the flame-retardant performance of the cable can be greatly improved.

The invention belongs to the technical field of insulator materials, and particularly relates to an insulating busbar and a preparation method thereof. The preparation method of the insulating busbar comprises the following steps: coating glue on the surface of a busbar base material, and drying to obtain a busbar with a bonding layer; the preparation method comprises the following steps: mixing 40 to 60 parts of silicon resin, 20 to 40 parts of grafted silicon dioxide, 10 to 20 parts of aluminum oxide and 2 to 4 parts of 2, 5-dimethyl-2, 5-bis-(tert-butylperoxy) hexane, so as to obtain a sizing material; placing the busbar with the bonding layer in a mold, then adding a sizing material, and pressing to obtain an insulating busbar; the preparation method of the grafted silicon dioxide comprises the following steps: stirring m-aminobenzoic acid and 3-aminopropyltriethoxysilane for reaction to obtain a grafting solution, and adding silicon dioxide into the grafting solution for grafting reaction to obtain the grafted silicon dioxide.

The invention relates to the technical field of wastewater treatment, in particular to a multistage composite adsorbent for treating petrochemical wastewater and a preparation method thereof.The preparation method comprises the steps that S1, plant straw powder and 3-aminopropyltriethoxysilane are subjected to a constant-temperature reaction, and aminated plant straw is obtained; s2, carrying out hydrothermal reaction on the aminated plant straw and a cerium nitrate solution to obtain functionalized plant straw; s3, the halloysite nanotubes, glutaraldehyde and the functionalized plant straw are stirred for a reaction, high-temperature carbonization is conducted after the reaction is completed, and composite biochar is obtained; s4, carrying out a reaction on the composite biochar and an amino silane coupling agent to obtain aminated composite biochar; s5, calixarene, toluene diisocynate and the aminated composite biochar are subjected to a reaction, and the multi-stage composite adsorbent is obtained. According to the technical scheme, the comprehensive adsorption capacity and removal efficiency of various organic pollutants in the petrochemical wastewater are improved, and the defect that a traditional adsorbent is poor in selectivity is overcome.

The invention discloses a method for preparing dimethyl carbonate through reaction of CO and methyl nitrite, belongs to the technical field of preparation of dimethyl carbonate, and aims to solve the problem that in the prior art, in the process of preparing dimethyl carbonate through catalysis of reaction of CO and methyl nitrite, the reaction time is short. The preparation method specifically comprises the following steps: in an inert gas atmosphere, mixing and stirring isocyanatopropyltriethoxysilane and N, N-dimethylformamide, raising the temperature of a reaction system to 50-60 DEG C, carrying out a reaction for 1-2 hours, and carrying out a reaction for 1-2 hours, so as to obtain a reaction solution; and 3-aminopropionic acid is added into the reaction system. According to the method, silicon-aluminum coating, potassium modification and 18-crown-6-ether modification are sequentially performed after a halogen-free palladium-copper catalytic system is prepared, so that the conversion rate of impurities and the chromatic value of a product are reduced, the conversion rate of methyl nitrite is effectively increased, and the service life of the catalyst is effectively prolonged.

The invention discloses flame-retardant recyclable compressible biodegradable cellulose aerogel and a preparation method and application thereof.The preparation method comprises the following steps that 1, phosphorus / nitrogen-containing bridged organosiloxane and tetraethyl orthosilicate are added into bacterial cellulose dispersion liquid and stirred to be uniform, and a milk white dispersion solution is prepared; (2) heating, curing, pre-freezing and freeze-drying the milky white dispersion solution to obtain the flame-retardant recyclable compressible biodegradable cellulose aerogel, and the phosphorus / nitrogen-containing bridged organosiloxane is prepared by carrying out a reaction on phosphonitrilic chloride trimer and 3-aminopropyltriethoxysilane. The prepared cellulose aerogel is excellent in flame retardance, heat insulation and cyclic compression performance, and has a feasible application prospect in the aspect of radiation refrigeration.

The invention discloses compression-resistant glass and a preparation method thereof, and relates to the technical field of special glass. When the compression-resistant glass is prepared, an anorthite crystal phase is used as a main material, a wollastonite crystal phase is used as an auxiliary material, and zinc, barium, boron, sodium, antimony and titanium elements are added, so that the compression-resistant glass ceramic is prepared; the preparation method comprises the following steps: mixing tetraethoxysilane, zirconium oxychloride octahydrate and 3-glycidyl ether oxypropyl trimethoxy silane, adding hydrochloric acid, and stirring to obtain modified sol; the preparation method comprises the following steps: mixing hydroxyl-terminated polysiloxane, trimethyl ethyoxyl silane, methyl triethyoxyl silane and octadecyl triethyoxyl silane, adding a hydrochloric acid solution, and reacting to prepare an organosilane modified solution; mixing the modified sol and the organosilane modified solution, coating the surface of the compression-resistant microcrystalline glass with the mixture, and curing to obtain the compression-resistant glass. The compressive glass prepared by the invention has the advantages of high compressive strength, hydrophobicity, wear resistance and high surface hardness.

The invention relates to the technical field of ship protection materials, in particular to a ship accessory rust-proof coating and a preparation method thereof.The ship accessory rust-proof coating comprises the following three-layer structure and components from inside to outside: a basic corrosion-resistant layer comprises 10-30 parts of a nano ceramic material; 5-15 parts of a rare earth oxide; 0.5 to 1.5 parts of aminated graphene oxide; 40 to 60 parts of fluorocarbon resin; 20 to 30 parts of epoxy-polyurethane hybrid resin; 3-8 parts of a zinc phosphate corrosion inhibitor; 2-5 parts of a self-repairing microcapsule; 1-3 parts of a photoinitiator; the interface transition layer comprises the following components in parts by weight: 3-5 parts of gamma-aminopropyltriethoxysilane; 2-5 parts of organic silicon resin coated copper powder; the antifouling surface layer comprises the following components in parts by weight: 10-15 parts of Cu coated SiO2 core-shell particles; 10 to 15 parts of a copolymer of polydimethylsiloxane and methyltrimethoxysilane; and 1-3 parts of an antifouling auxiliary agent. According to the multifunctional protective coating for the ship, through the synergistic effect of multiple components, comprehensive improvement of corrosion resistance, pollution resistance, self-repairing and construction efficiency is achieved, and remarkable technical progress and practical value are shown.

The invention relates to the field of coatings, and discloses a biomass-based oil-resistant coating and a preparation method thereof, the coating comprises an additive solution, a paraffin solution and gallic acid; the paraffin solution is obtained by dissolving paraffin in absolute ethyl alcohol; a preparation method of the additive solution comprises the following steps: mixing chitosan powder and an acetic acid aqueous solution to prepare a chitosan solution, ultrasonically dispersing functionalized montmorillonite in deionized water to prepare a suspension, then uniformly mixing the chitosan solution and the suspension, adding modified phytic acid prepared by grafting phytic acid and ethylene glycol diglycidyl ether, and stirring to react; the functional montmorillonite is prepared by modifying modified montmorillonite with titanium dioxide and zinc oxide, then activating the modified montmorillonite with 3-aminopropyltriethoxysilane and succinic anhydride, and then carrying out a ring-opening reaction with glycidyl neodecanoate. The coating prepared by the invention has high water resistance, the Kit oil-proof grade is kept at grade 12, and the oil-proof performance of the coating is greatly improved. Meanwhile, the antibacterial performance, the tensile index and the ultraviolet aging resistance are relatively high.

The invention discloses a process for preparing flame-retardant polyethylene plastic by recycling waste polyethylene plastic, and relates to the technical field of high polymer materials. When the flame-retardant polyethylene plastic is prepared, the waste polyethylene is extruded and granulated to prepare the polyethylene master batch; carrying out catalytic pyrolysis on the polyethylene master batch, and then reacting with potassium permanganate to prepare a hydroxylated carbon nanotube; the preparation method comprises the following steps: reacting a hydroxylated carbon nanotube with 1-(chloro-methylphosphoryl) ethylene, and then reacting with (mercaptomethyl) triethoxysilane to prepare a modified carbon nanotube; the preparation method comprises the following steps: carrying out irradiation grafting on a polyethylene master batch, 2-hydroxy-4-propenyl benzophenone and N, N-diethyl allylamine, and then reacting with chloromethyl triethoxy silane to prepare modified polyethylene; and carrying out melt extrusion on the modified carbon nanotubes and the modified polyethylene, carrying out injection molding, and carrying out water treatment to obtain the flame-retardant polyethylene plastic. The flame-retardant polyethylene plastic prepared by the invention has good flame retardant property, antibacterial property, tensile strength and anti-aging property.

The invention relates to the technical field of adhesives, in particular to a bio-based polyurethane hot melt adhesive and a preparation process thereof. The bio-based polyurethane hot melt adhesive is prepared from the following raw materials in parts by weight: 30 to 40 parts of bio-based polyester glycol, 60 to 80 parts of bio-based polyether polyol, 25 to 35 parts of acrylic resin, 40 to 60 parts of isophorone diisocyanate, 3 to 5 parts of bisphenol A epoxy resin E-44, 3 to 5 parts of 1, 3-butanediol, 1, 3-butanediol and 1, 3-butanediol. The coating is prepared from the following raw materials in parts by weight: 1-2 parts of 1, 4-butanediol, 0.2-0.6 part of dibutyltin dilaurate, 0.6-1.0 part of 3-aminopropyltriethoxysilane, 3-5 parts of modified carbon nanotubes, 2-4 parts of a curing agent, 1-1.5 parts of an ultraviolet absorbent and 0.8-1.2 parts of an antioxidant. The bio-based polyurethane hot melt adhesive prepared by the invention not only has better adhesive property, but also has excellent mechanical property and aging resistance, and the quality of the bio-based polyurethane hot melt adhesive is ensured while the service life of the bio-based polyurethane hot melt adhesive is effectively prolonged.

The invention discloses a polyaniline composite flexible electrode material, a preparation method and a supercapacitor, and the preparation method comprises the following steps: introducing sodium sulfonate and cyano into an aniline structure through a two-step method, and obtaining modified aniline; the preparation method comprises the following steps: mixing graphene oxide with 3-aminopropyltriethoxysilane for reaction to obtain modified graphene oxide; then, by taking polyvinyl alcohol as a space stabilizer and a template agent, mediating in-situ polymerization of aniline, modified aniline and modified graphene oxide to obtain a polyaniline derivative prefabricated solution; and then hydrophilic hydrogel is introduced to prepare the polyaniline composite flexible electrode material. The polyaniline composite flexible electrode material provided by the invention is good in cycling stability and excellent in electrochemical performance and mechanical performance, and when the composite flexible electrode material is assembled into a supercapacitor, the specific capacitance value and cycling stability of the supercapacitor can be remarkably improved.

The invention belongs to the technical field of insulating oil, and provides a slow-release antioxidant as well as a preparation method and application thereof, the preparation method comprises the following steps: (1) mixing octadecyl trimethyl ammonium bromide, 2, 6-butylated hydroxytoluene, tetraethoxysilane, water and ammonia water, and reacting to obtain the antioxidant; and (2) in a protective atmosphere, mixing the antioxidant, ethanol, water and gamma-mercaptopropyltriethoxysilane, and carrying out a reaction so as to obtain the slow-release antioxidant. The slow-release antioxidant suitable for the synthetic ester insulating oil is prepared through a physical coating means and oleophylic modification, has excellent solubility, can effectively inhibit the increase of the acid value of the synthetic ester insulating oil, delays the oxidation process of the synthetic ester insulating oil, and remarkably prolongs the service life of the insulating oil. Meanwhile, through a slow release mechanism, the antioxidant can prolong the antioxidant effect of the antioxidant, improve the antioxidant stability in long-time operation and meet the higher antioxidant requirement of high-performance equipment such as a transformer for the insulating oil.

The invention relates to the technical field of water-based paint, in particular to ultrathin corrosion-resistant water-based paint and a preparation method thereof. The ultrathin corrosion-resistant water-based paint is composed of a component A and a component B according to the mass ratio of 10: (1-2), the component A is prepared from the following raw materials in parts by mass: 40 to 60 parts of waterborne epoxy emulsion, 30 to 50 parts of zinc powder, 1.2 to 3.6 parts of phosphoric acid, 1 to 3 parts of graphene oxide, 0.1 to 1 part of gamma-aminopropyltriethoxysilane, 1 to 2 parts of dispersing agent, 0.1 to 1 part of defoaming agent, 1 to 3 parts of corrosion inhibitor and 0.1 to 1 part of flatting agent; the component B comprises the following components in parts by mass: 40-60 parts of a curing agent, 1-3 parts of an accelerant, 1-3 parts of hyperbranched polyamidoamine, 5-15 parts of a cosolvent and 20-30 parts of water. The coating is good in environmental protection property, can achieve the long-acting corrosion-resistant effect while guaranteeing the ultrathin thickness, is good in construction stability, and has remarkable application value in severe environments such as ships and offshore wind power.

The invention discloses lightweight thermal insulation concrete and a preparation method thereof, and belongs to the technical field of lightweight concrete. The lightweight thermal insulation concrete is prepared from the following raw materials in parts by weight: 20 to 25 parts of fly ash geopolymer slurry, 60 to 70 parts of cement, 20 to 24 parts of glass beads, 100 to 110 parts of modified ceramsite, 15 to 17 parts of polypropylene fiber, 5 to 7 parts of potassium silicate, 16 to 20 parts of pure acrylic emulsion, 1.5 to 2 parts of gamma-aminopropyltriethoxysilane, 0.8 to 1.0 part of polycarboxylic acid water reducer and 0.3 to 0.5 part of cellulose ether. 3-5 parts of a foaming agent, 1-2 parts of a synergist and 50-60 parts of water. The lightweight concrete prepared by adding the modified ceramsite, the synergist dipropylene glycol monomethyl ether, the compound foaming agent and other specific material components is good in thermal insulation effect and excellent in crack resistance and frost resistance, and the comprehensive performance is synchronously improved.

The invention belongs to the technical field of building materials, and particularly relates to a micro-expansion anti-cracking waterproof composite deep groove filler and a preparation method thereof. The micro-bulking anti-cracking waterproof composite deep groove filler provided by the invention comprises cement, gypsum, mineral powder, nano silicon oxide, coarse aggregate, fine aggregate, modified fibers, an expanding agent, a polycarboxylate superplasticizer and water. According to the invention, polyacrylamide, calcium sulphoaluminate and magnesium oxide are adopted to jointly form an expanding agent, and early-stage-late-stage full-period shrinkage compensation is jointly formed in a concrete hydration process, so that the density of the concrete is effectively improved, and the waterproof performance of the concrete is further improved; according to the invention, sodium dodecyl benzene sulfonate and propylene glycol block polyether are adopted to carry out compound modification on graphene oxide, and gamma-aminopropyltriethoxysilane is connected to the surface of basalt fiber, so that the bonding strength of basalt fiber and a cement matrix and the compactness of the cement matrix are improved, and the waterproof and anti-cracking properties of concrete are further improved.

The invention discloses a preparation method and application of a photo-thermal dual-response membrane material, and relates to the field of membrane materials. When the photo-thermal double-response membrane material is prepared, a photo-thermal material firstly reacts with 4-(triethoxysilyl) aniline and then reacts with 2, 4, 6-trihydroxy-1, 3, 5-benzenetricarboxaldehyde and p-phenylenediamine, and a modified photo-thermal material is prepared; the preparation method comprises the following steps: sequentially reacting benzaldehyde with 2-hydroxyacetophenone and 3-N, N-dimethylamino methacryloyl chloride to prepare a photo-initiation monomer; the preparation method comprises the following steps: mixing N-isopropylacrylamide, a photo-initiation monomer, N, N '-methylene bisacrylamide and a modified photo-thermal material, combining with a hydrophobic substrate membrane, preparing a membrane, and finishing the surface by using 2-bromo-1-[3, 5-di (tert-butyl)-4-hydroxyphenyl] ethanone, thereby obtaining the photo-thermal dual-response membrane material. The photo-thermal dual-response membrane material prepared by the invention has the characteristics of pollution resistance, easiness in cleaning, durability, antibacterial property, metal ion recovery and low energy consumption.

The invention relates to the technical field of cementing materials, in particular to an environment-friendly high-performance cementing material based on fly ash and slag and a preparation method of the environment-friendly high-performance cementing material. The environment-friendly high-performance cementing material comprises the following raw materials in parts by weight: 80-100 parts of fly ash, 16-20 parts of slag, 10-14 parts of desulfurized gypsum, 4-6 parts of gasified slag and 0.6-0.8 part of a composite activator, according to the invention, the gasified slag is pretreated to form a rich pore structure, the specific surface area of the gasified slag is increased, then the desulfurized gypsum and the 3-aminopropyltriethoxysilane are combined to carry out hydrolytic condensation reaction, and through the bridging effect of the silane coupling agent, the specific surface area of the gasified slag is increased; the interface bonding force between the desulfurized gypsum and other cementing materials is remarkably enhanced, so that the strength performance of the cementing material is improved, other natural materials are replaced with solid waste, the production cost of the cementing material can be effectively reduced, meanwhile, accumulation of waste is effectively reduced, cyclic utilization of resources is achieved, and natural resources are protected.