110 results about "Dodecylsulfonic acid" patented technology

The invention relates to a waste photovoltaic panel recycling method which comprises the following steps: crushing a waste photovoltaic panel until the size of the waste photovoltaic panel is 80-160 meshes, and preparing powder; carrying out acid leaching treatment on the powder, and respectively collecting a leaching solution and a solid material; an acid leaching solution adopted in the acid leaching treatment is a mixed acid aqueous solution of hydrochloric acid and sulfuric acid; the pH of the leachate is adjusted to be neutral with an alkaline agent, then the leachate is mixed with metal iron to be subjected to a replacement reaction, and metal copper is prepared; the solid material is mixed with water, hydrofluoric acid and a flotation agent are added into the obtained mixture for flotation treatment, floats and precipitates are collected respectively, the floats comprise silicon powder, the precipitates comprise glass powder, and the flotation agent comprises one or two of hexadecyl potassium hydrogen phosphate and sodium dodecyl sulfate. According to the recycling method, the silicon powder, the glass powder and the metal copper can be comprehensively recycled from the waste photovoltaic panel.

The invention provides a low-temperature-impact-resistant food packaging material and a preparation method and application thereof.The low-temperature-impact-resistant food packaging material is prepared from, by mass, 100 parts of polylactic acid, 1-10 parts of modified layered double hydroxide and 5-40 parts of hyperbranched polyester; wherein the modified layered double hydroxide is obtained by treating layered double hydroxide with a composite anionic surfactant and then treating the treated layered double hydroxide with an organic cationic compound with a long alkyl chain; the composite anionic surfactant comprises a first anionic surfactant and a second anionic surfactant; wherein the first anionic surfactant comprises sodium dodecyl sulfate; the second anionic surfactant comprises a sulfonate anionic surfactant containing an amido bond and a catechol structure. Through the formula design, the impact toughness of the material at low temperature can be improved while the mechanical property of polylactic acid is maintained, and the material can be suitable for the field of food packaging.

The invention relates to the technical field of steel-cored aluminum stranded wires, and provides an overhead high-conductivity steel-cored aluminum stranded wire which comprises a galvanized steel core and aluminum wires stranded on the surface of the galvanized steel core, the galvanized steel core is formed by stranding 19 steel wires, and the aluminum wires are divided into two layers and stranded on the outer side of the galvanized steel core; the preparation method of the galvanized steel core comprises the following steps that after being galvanized, a steel wire is added into a passivation solution to be passivated, and the galvanized steel core is obtained after drying and twisting; the passivation solution is prepared from the following raw material components: waterborne acrylic resin, nickel nitrate, sodium carboxymethyl cellulose, sodium dodecyl sulfate, functionalized single-walled carbon nanotubes and water; the functionalized single-walled carbon nanotube is prepared from the following raw materials: a single-walled carbon nanotube and 5-carboxyl-2, 3-diaminopyridine. According to the technical scheme, the problem that the corrosion resistance of the manufactured overhead steel-cored aluminum stranded wire is poor due to the fact that the corrosion resistance of a galvanized steel core is poor in the prior art is solved.

The invention relates to the technical field of sewage treatment in environmental protection, in particular to a high-valence metal cation composite remover and a use method of the high-valence metal cation composite remover. The polyhydroxy compound, the polycarboxyl compound and the polyamido compound are one or more than two of dithiomethyl carbamate, dithioethyl carbamate, dithiopiperazine dicarboxylate, trithiocyanate, hyperbranched vinylamine dithiocarbamate and dodecyl sulfonate, and the polyhydroxy compound, the polycarboxyl compound and the polyamido compound are one or more than two of dithiomethyl carbamate, dithioethyl carbamate, dithiopiperazine dicarboxylate, trithiocyanate, hyperbranched vinylamine dithiocarbamate and dodecyl sulfonate; the inorganic matter is one or more than two of silicate, phosphate and carbonate. According to the method, after the ammonia water is added, the composite removing agent is added for reaction and precipitation, the method has the advantages that the technological process is simple, the agent adding amount is small, the removal rate of high-valence metal cations reaches 99.9% or above, the operation cost is low, the pH value in the process is low, ammonia volatilization waste is inhibited and controlled, and the problems of safety and environmental protection are solved, and the method is suitable for industrial production.

The invention belongs to the field of carbon-based composite materials, and particularly relates to a short carbon fiber reinforced carbon-ceramic composite material. The preparation method comprises the following steps: mixing mesophase pitch powder and resin powder according to a mass ratio of (5-7): (3-5) to obtain a mixed binder; uniformly mixing nanoscale carbon black serving as a reinforcing phase and sodium dodecyl sulfate serving as a dispersing agent to obtain modified nano carbon black; uniformly mixing the obtained mixed binder with modified carbon black according to the ratio of 100: (1-4) to obtain a mixed binder; weighing the modified carbon black enhanced mixed binder and short carbon fibers according to a mass ratio of (40-60): (40-60), and uniformly mixing to obtain pressed powder; and carrying out hot press molding, carbonization and reactive infiltration to obtain the short carbon fiber reinforced carbon-ceramic composite material. The process is simple and controllable, the obtained product is high in density, high in strength and high in friction coefficient stability, and industrial application is facilitated.

The invention discloses a ceramic membrane cleaning agent which comprises an agent A, an agent B, an agent C and water, wherein the agent A comprises sodium dodecyl sulfate and a polyoxyethylene ether nonionic surfactant; the agent B comprises potassium pyrophosphate and ethylenediamine tetraacetic acid tetrasodium salt; the agent C comprises sodium hypochlorite. The invention further discloses a preparation method of the ceramic membrane cleaning agent. The problems that an existing ceramic membrane cleaning agent is common in cleaning effect, and the service life of a ceramic membrane is affected due to incomplete cleaning are solved. The agent A is selected from sodium dodecyl sulfate and a polyoxyethylene ether nonionic surfactant, and the sodium dodecyl sulfate and the polyoxyethylene ether nonionic surfactant both have an emulsifying effect and good compounding property and can enhance the emulsifying effect through a synergistic effect; in the agent B, the potassium pyrophosphate and the tetrasodium ethylenediamine tetraacetate have a synergistic effect, and the potassium pyrophosphate and the tetrasodium ethylenediamine tetraacetate are matched, so that the cleaning effect can be improved, and the decontamination capability can be enhanced. The agent C is matched with the agent A and the agent B, so that the overall stability of the cleaning agent is ensured. Therefore, the ceramic membrane has antibacterial, efficient decontamination and efficient emulsification performance at the same time.

The invention relates to the field of molecular biology, and discloses a nucleic acid releasing agent for isothermal amplification and a use method of the nucleic acid releasing agent. Comprising the following steps: step 1, preparing a polyoxypropylene polyoxyethylene copolymer diluent, a defoaming agent SE-15 diluent, an ethyl phenyl polyethylene glycol NP-40 diluent, a sodium polyethylene sulfonate diluent and a Proclin300 diluent in sequence through RNA enzyme-free water; and 2, sequentially preparing an ethylenediamine tetraacetic acid disodium salt mother solution, a sodium dodecyl sulfate mother solution and a glycine mother solution through RNA enzyme-free water. Sodium polyethylene sulfonate can be specifically combined with protein amplification inhibitors in a sample to remove mucoprotein, hemoglobin, polysaccharide and other inhibitors in the swab sample, and disodium ethylene diamine tetraacetate can chelate metal ions to reduce the influence of nuclease on target nucleic acid.

The invention provides a lithium slag flotation desulfurization method, a ceramic tile doped with lithium slag and a preparation method of the ceramic tile, and the method comprises the following steps: controlling the particle size of the lithium slag to be treated within a preset particle size range, adding water into the lithium slag, and blending into ore pulp with preset solid content; sodium dodecyl sulfate and xanthate serve as collecting agents to be added into the ore pulp, sodium silicate serves as an inhibitor to be added into the ore pulp, and sodium carbonate is adopted to adjust the pH of the ore pulp to be within the preset pH range; and stirring the ore pulp of which the pH is adjusted to obtain desulfurized lithium slag concentrate, and dehydrating and drying the desulfurized lithium slag concentrate to obtain flotation lithium slag. Through complementation of chemical adsorption and physical adsorption, charge regulation and control and reinforcement of the hydrophobic layer, efficient selective separation of sulfide is realized, the addition proportion of a dispergator when the lithium slag is applied to wet ball milling of the ceramic billet is greatly reduced, the slurry performance of the lithium slag billet is remarkably improved, the cost is low, and the desulfurization effect is good.

The present invention relates to the technical field of battery materials, and in particular to a nitrogen-sulfur co-doped hard carbon negative electrode material for sodium / potassium ion batteries and a preparation method thereof. The preparation method comprises preparing a mixture powder of dodecyl sulfonate and a nitrogen source, carbonizing under inert gas conditions, washing the carbonized product, and vacuum drying to obtain a nitrogen-sulfur co-doped hard carbon negative electrode material. The introduction of nitrogen atoms in the negative electrode material prepared by the present invention can change the surface charge distribution of the carbon material, improve the electronic conductivity, and at the same time increase the active sites, and promote the capacitive adsorption behavior of the carbon material for sodium / potassium ions; the introduction of sulfur atoms can increase the hard carbon interlayer spacing, reduce the sodium / potassium ion diffusion energy barrier, enhance the diffusion kinetics behavior, and synergistically improve the sodium / potassium storage performance of the hard carbon material. The above-mentioned negative electrode material can be used to prepare sodium / potassium ion batteries with high specific capacity, excellent rate performance and long cycle stability, and the preparation method is simple in process, controllable in large quantities, low in cost, and environmentally friendly.

The invention discloses a compound fluralab chewable tablet and a preparation method thereof, and relates to the technical field of veterinary drug preparations, the chewable tablet is composed of fluralab, pyrantel and moxidectin solid dispersion constructed by poloxamer 407 / lauryl sodium sulfate (or sodium dodecyl sulfate); preferably, the particle size D50 of the dispersion is 5-30 microns, and D90 is less than or equal to 80 microns. The preparation method comprises the following steps: firstly, dissolving moxidectin in the system to form a clear solution, drying under reduced pressure, and grinding and sieving at low temperature to obtain a dispersed material; premixing with microcrystalline cellulose, then mixing with lactose, adding a disintegrating agent and a lubricating agent, and carrying out prepressing-main pressing two-stage tabletting to obtain the tablet. The system can maintain amorphous distribution of moxidectin in the tablet, the content uniformity and dissolution and acceleration stability are remarkably improved, broad-spectrum synergy is formed by the moxidectin, the fluralasodium and the pyrantel, and the moxidectin tablet is suitable for killing fleas and ticks, treating roundworms and hookworms and preventing canine heart filariasis and tubuloidiasis.

The application provides a low pour point nonionic surfactant and a preparation method thereof, which is composed of the following raw materials in parts by weight: C13 isomeric fatty alcohol polyoxyethylene ether 18-30 parts, reverse EO / PO block copolymer 10-20 parts, sodium diisooctyl sulfosuccinate 1-7 parts, sodium dodecyl sulfonate 1-5 parts, glyceryl laurate 1-5 parts, isopropyl alcohol 5-10 parts, and propylene glycol 1-5 parts; the formula is constructed based on a nonionic surfactant as a main body, ion surfactants and additives are introduced, and the system is optimized, so that a low pour point nonionic surfactant with excellent adsorption capacity and decontamination capacity is obtained.

The application relates to the technical field of chemical energy and electric energy conversion, and particularly discloses a zinc-nickel battery electrolyte additive based on dynamic interface modification and a preparation method thereof. The additive is composed of an interface film former composed of sodium phytate and sodium dodecyl sulfonate, a cerium acetylacetone electric field regulator and a double-end amino polyethylene glycol bridging component in a specific mass ratio. Through the multiple synergistic mechanisms of interface film formation, electric field regulation and molecular bridging, the additive can construct an intelligent dynamic interface layer on the surface of a zinc negative electrode, and can synchronously and efficiently inhibit zinc dendrite growth and zinc self-corrosion. The microspherical additive prepared by using a high-speed shearing and spray drying process has good dispersibility and high stability. When the additive is applied to a zinc-nickel battery electrolyte, the cycle life, rate performance and high and low temperature performance of the battery can be remarkably improved, and the additive has important practical value.

The invention discloses a device and a method for inhibiting air holes in sulfated electrodeposited nickel, relates to the technical field of nickel-cobalt hydrometallurgy electrodeposition equipment, and solves the technical problem of more air holes in the existing sulfated electrodeposited nickel production. The air hole restraining device comprises a stirring box, a stirring device is connected to the stirring box, and the stirring device specifically comprises a motor, a coupler and a speed reducer. The method comprises the following steps: adding three additives, namely A and B type liquid electrodeposition nickel pore inhibition additives and a solid additive, namely sodium dodecyl sulfate, into a stirring box, pumping the three additives into the stirring box through a metering pump, uniformly stirring with water according to a certain proportion, pumping into a precision filter paper filter through a mortar pump, and stirring uniformly to obtain a finished product. And solid particles in the solution are further filtered, and finally the filtered solution enters the clarifying tank so as to complete the subsequent process. According to the device for inhibiting the air holes in the sulfated electrodeposited nickel, the problem that the number of the air holes in the electrodeposited nickel is large is effectively solved, the air hole inhibiting efficiency is greatly improved, and it is ensured that a delicate electrodeposited nickel product is produced.

This invention discloses a denitrification biological carrier, its preparation method, and its application. The raw materials for preparing the denitrification biological carrier include an iron agent, modified activated carbon, polycaprolactone, sodium dodecyl sulfate, and a hydrogel binder. The modified activated carbon is 3-chloro-2-hydroxypropyltrimethylammonium chloride-modified activated carbon. The iron agent not only removes dissolved oxygen from water but also reduces total nitrogen in wastewater. The modified activated carbon improves its adsorption affinity for nitrogen-containing compounds. Polycaprolactone serves as a slow-release carbon source for denitrification, exhibiting high carbon source utilization. Sodium dodecyl sulfate, through its foaming properties, together with the modified activated carbon, iron agent, and polycaprolactone, forms a high-mechanical-strength, rough, and porous biological carrier structure, providing excellent attachment conditions for heterotrophic denitrifying bacteria. Therefore, applying the denitrification biological carrier of this invention to wastewater treatment systems can achieve good nitrogen removal efficiency and economic benefits.

The application discloses a GSH / pH dual-response Cu2O@Cu 2+ / ZIF-67@ZnPc core-shell structure nano drug, a preparation method and application thereof, and belongs to the technical field of metal organic framework materials as drug transportation carriers. First, Cu2O nanospheres are used as templates, sodium dodecyl sulfonate is used to change the potential of the Cu2O nanospheres, and then the Cu2O nanospheres are reacted with a cobalt nitrate hexahydrate solution and a 2-methyl imidazole methanol solution to obtain Cu2O@Cu 2+ / ZIF-67 core-shell structure nano material, and then a photosensitizer, a tetra-carboxy phthalocyanine zinc and a polypropylene glycol and ethylene oxide polyadduct are added to obtain the target nano drug. The nano drug is based on the synthesis of a uniform doped core-shell MOFs structure from a Cu2O self-template, has good product stability and high drug loading rate, and can activate chemical kinetics and photodynamic synergy treatment (CDT / PDT) in a tumor microenvironment.

The invention provides a flexible phase change energy storage ointment material as well as a preparation method and application thereof, and relates to the technical field of phase change energy storage materials, the flexible phase change energy storage ointment material comprises sodium phosphate dibasic dodecahydrate, water, a crystal structure stabilizer, a phase change form changing agent and a phase change temperature regulator; the crystal structure stabilizer comprises at least one of glycerol, sorbitol, propylene glycol and water-soluble silicone oil; the phase change form changing agent comprises at least one of sodium alginate, gelatin, xanthan gum, water glass, sodium dodecyl sulfate, calcium chloride and sodium bicarbonate. The technical problems that the phase-change temperature of the disodium hydrogen phosphate dodecahydrate is not matched with the thermal management temperature of a human body, the phase-change material is uneven in surface and poor in comfort after liquid-solid phase change, particularly solidification and hardening, and the phase-change material is poor in cycling stability and short in service life are solved, and the effects that all the materials are compounded to play a high-efficiency synergistic effect, and the service life is prolonged are achieved. The flexible phase change energy storage ointment material has the technical effect of being suitable for human body thermal management.

This invention provides a modified lithium iron manganese phosphate material, its preparation method, and a lithium-ion battery. The preparation method includes: Step S1, adding a lithium source, an iron source, a manganese source, a phosphorus source, a first carbon source, hexadecyltrimethylammonium chloride, and sodium dodecyl sulfonate to water, mixing them, and then grinding them to obtain a first slurry; Step S2, sequentially subjecting the first slurry to first spray drying, first calcination, and first pulverization to obtain a precursor; Step S3, adding the precursor and a second carbon source to water, mixing them, and then grinding them to obtain a second slurry; Step S4, sequentially subjecting the second slurry to second spray drying, second calcination, and second pulverization to obtain the modified lithium iron manganese phosphate material. This invention effectively optimizes the material structure of lithium iron manganese phosphate and improves its thermal stability and ion transport characteristics by introducing special hexadecyltrimethylammonium chloride and sodium dodecyl sulfonate during the synthesis of the lithium iron manganese phosphate material.

The application provides a fluorapatite phosphate ore reverse flotation magnesium removal collector and application thereof, which comprises basic substances and water, and the basic substances are mixed according to the mass ratio, wherein the ratio of fatty acid soap, surfactant and additive is 11:3:2; the fatty acid soap is one or a mixture of two of sodium oleate, oxidized paraffin soap; the surfactant is one or any ratio of sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, sodium citrate, sodium acetate and sodium benzoate; and the additive is sodium naphthenate. The fluorapatite phosphate ore reverse flotation magnesium removal collector provided by the application can effectively separate apatite and dolomite, significantly improve the collecting capacity and selectivity by adding surfactants and additives, and the surfactant composition weakens the influence of Fe 3+ on the flotation system.

The application provides a qualitative and quantitative detection method of polynaphthalene formaldehyde sulfonate sodium salt in a pesticide preparation, comprising the following steps: S10, solution preparation: preparing a standard sample solution, a series of concentration standard solutions and a sample solution by using pure water as a solvent; S20, chromatographic detection: adopting high performance liquid chromatography, using a C18 chromatographic column as a stationary phase, using a mixed solution of a water solution containing sodium dodecyl sulfonate and acetonitrile as a mobile phase for isocratic elution, and detecting at a wavelength of 240 nm; S30, qualitative determination: comparing the chromatographic peak retention time of the standard sample solution and the sample solution, and determining whether the polynaphthalene formaldehyde sulfonate sodium salt is contained according to the relative deviation; and S40, quantitative determination: drawing a standard curve according to the concentration and peak area of the series of concentration standard solutions, and calculating the content according to an external standard method. The application realizes accurate qualitative and quantitative determination of the polynaphthalene formaldehyde sulfonate sodium salt by combining chromatographic separation and ultraviolet detection, has the advantages of strong specificity, high accuracy, good reproducibility and simple operation, and is suitable for detection of various pesticide preparations.

This invention relates to a pollution-free rust-preventive oil and its preparation method, belonging to the technical field of rust-preventive oils. This invention uses No. 10 machine oil as a carrier, allowing other functional additives to be uniformly dispersed in the oil. Rust inhibitors such as barium petroleum sulfonate, sodium petroleum sulfonate, and zinc naphthenate can form a protective film on the metal surface, collectively enhancing the rust-preventive effect. Benzotriazole, as a corrosion inhibitor, can form a dense passivation film on the metal surface, working synergistically with the rust inhibitors. Sodium dodecyl sulfonate has excellent dispersing and emulsifying properties, helping other additives to be better dispersed in the base oil. Furthermore, sodium dodecyl sulfonate can enhance the rust-preventive film. 3-Mercaptopropyltrimethoxysilane can enhance the adhesion and water resistance of the rust-preventive film, improving the overall performance of the rust-preventive oil. The addition of modified lanolin can improve the stability of the rust-preventive oil, enabling it to maintain good rust-preventive effects under various environmental conditions.

The present invention discloses an ellipsoidal porous silicon oxide / carbon negative electrode material and a preparation method thereof. The invention uses micelles of sodium dodecyl sulfate as a pore-forming template, γ-aminopropyltriethoxysilane and 1,2-bis(triethoxysilyl)ethane as reactants, and a mixed solution of ethanol and water as a solvent. The Coulomb effect between sodium dodecyl sulfate and γ-aminopropyltriethoxysilane and the hydrolysis-condensation between triethoxysilyl groups are utilized to synthesize an ellipsoidal porous organic precursor, which is then subjected to high-temperature pyrolysis under argon conditions to obtain an ellipsoidal porous silicon oxide / carbon negative electrode material. The preparation method of the present invention uses sodium dodecyl sulfate as a template to obtain an ellipsoidal porous structure that can effectively mitigate the low electronic conductivity problem of silicon-based materials and the volume expansion problem during the lithium stripping / insertion process, avoids the safety and environmental issues of acid etching pore formation, and the method is simple and suitable for large-scale production.

The present invention relates to a degradable, thermally repairable CNTs / PBAT composite fiber, its preparation method, and application. The preparation method comprises the following steps: (1) premixing poly(butylene adipate / terephthalate) (PBAT), triallyl isocyanurate (TAIC), and benzophenone (BP), followed by melt extrusion and ultraviolet radiation crosslinking to obtain a crosslinked PBAT fiber; dispersing carbon nanotubes (CNTs) and sodium dodecyl sulfate (SDS) in a mixture of ethyl acetate and anhydrous ethanol and ultrasonically treating the mixture to obtain a CNTs dispersion; and (2) immersing the crosslinked PBAT fiber in the CNTs dispersion, removing the fiber from the mixture and hanging it to dry, thereby obtaining a thermally repairable CNTs / PBAT composite fiber. The CNTs / PBAT composite fiber of the present invention has the advantages of being degradable, thermally repairable, sensitive, lightweight, small in size, and having a simple manufacturing process.

The invention relates to a preparation method and application of casein rich in chondroitin sulfate, and belongs to the technical field of pharmacy. The invention provides a preparation method of casein rich in chondroitin sulfate, which comprises the following steps: (1) dialyzing a sodium caseinate solution, standing after dialyzing, centrifuging and drying to obtain a dry substance; (2) mixing the dried substance with sodium dodecyl sulfate, urea and a calcium chloride solution, dialyzing, and mixing with a chondroitin sulfate solution to obtain a mixed solution 1; and (3) mixing the mixed solution 1 with a cross-linking agent, stirring, dialyzing and drying to obtain the casein rich in chondroitin sulfate. According to the preparation method disclosed by the invention, the chondroitin sulfate and the casein form a stable combination through the cross-linking agent, so that the casein rich in chondroitin sulfate is obtained, the stability of the chondroitin sulfate can be enhanced, the casein can resist high temperature, and meanwhile, the casein is endowed with a special effect.

The invention relates to a composite admixture for improving the dry shrinkage performance of alkali slag cement, and a preparation method and a use method thereof, and belongs to the technical field of building materials. The composite additive is prepared from the following components in parts by mass: 30 to 50 parts of potassium dodecyl sulfate, 30 to 50 parts of alkali slag, 10 to 20 parts of nano silicon dioxide, 2 to 6 parts of stearic acid and 15 to 25 parts of sodium lignin sulfonate. By reasonably preparing the components in the admixture and using amounts of the components and utilizing the synergistic effect of the components, the internal pore structure of an alkali slag cement test piece is remarkably improved, and the capillary pressure is reduced, so that the drying shrinkage phenomenon is reduced. In addition, the admixture almost has no adverse effect on the mechanical property of an alkali-activated slag cement test piece, the synthesis method is simple and convenient, the raw materials are easy to obtain, and the admixture has good industrial production prospects.

The invention belongs to the technical field of high polymer materials, and particularly relates to a rubber label containing an epoxy group agglomerated siloxane microsphere emulsion and a preparation method thereof.The preparation method comprises the steps that S1, sodium dodecyl sulfate, sodium bicarbonate and sodium dihydrogen phosphate serve as raw materials to prepare a water phase, modified silane, n-hexadecane and azodiisobutyronitrile serve as raw materials to prepare an oil phase, and the oil phase is prepared into an oil phase; carrying out emulsification treatment on the water phase and the oil phase to obtain a miniemulsion, and carrying out polymerization reaction on the miniemulsion to obtain an epoxy group-containing agglomerated siloxane microsphere emulsion; s2, polyol, isocyanate, a chain extender, 1, 4-butanediol and stannous octoate are used as raw materials to prepare a prepolymer; and S3, adding the epoxy group-containing agglomerated siloxane microsphere emulsion into the prepolymer for stirring reaction, and then pouring into a mold for molding to obtain the rubber label containing the epoxy group-containing agglomerated siloxane microsphere emulsion. The hardness and heat resistance of the material are effectively improved, and good flame retardant property is obtained.

This invention relates to the field of thermochromic coating technology, and discloses a method for preparing thermochromic coatings and a window film for their application; comprising the following steps: Step 1: Sodium dodecyl sulfonate and polyvinylpyrrolidone are uniformly mixed at a mass ratio of 1:(0.3~0.4) to obtain a surfactant; Step 2: Modified polyurethane and acrylic resin are added to a solvent, heated and stirred at 50~60℃ for 1~2 hours, and surfactant, pigment, thermochromic microcapsules, defoamer, and plasticizer are added sequentially, and mixing is continued for 40~60 minutes to obtain a thermochromic coating; the polymer material is melt-extruded, biaxially stretched, shaped and cooled to obtain a base film; the pressure is set to 0.8~1N / cm. 2 At a speed of 1~2m / min, the thermochromic coating is evenly applied to the base film and dried at 60~70℃ to produce a smart window film, which can effectively reduce energy consumption.

The invention discloses a water-based polyacrylic resin self-foaming emulsion as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The water-based acrylic acid emulsion is prepared from the following components in percentage by mass: 0.61 percent to 0.64 percent of acrylic acid, 2.4 percent to 2.5 percent of hydroxyethyl acrylate, 12.2 percent to 12.5 percent of methyl methacrylate, 15.3 percent to 15.7 percent of butyl acrylate, 2.6 percent to 7.8 percent of methacrylic acid long-chain alkyl ester, 1.4 percent to 2.0 percent of N-hydroxymethyl acrylamide, 0.3 percent to 0.4 percent of an initiator and 1.4 percent to 1.6 percent of a compound emulsifier, 0.4%-0.5% of a pH regulator and the balance of deionized water; wherein the acrylic acid, the hydroxyethyl acrylate, the methyl methacrylate, the butyl acrylate, the methacrylic acid long-chain alkyl ester and the N-hydroxymethyl acrylamide form a mixed monomer; the compound emulsifier is an emulsifier formed by compounding sodium dodecyl sulfate and OP-10. The material can spontaneously form a uniform and fine foam structure in the coating process, and the foaming process can be completed only by simple stirring without additionally adding a foaming agent, so that the production process is simplified, and the production efficiency is improved.

The application provides a flexible phase change energy storage soft paste material and a preparation method and application thereof, relates to the technical field of phase change energy storage materials, and the flexible phase change energy storage soft paste material comprises twelve sodium hydrogen phosphate, water, a crystal structure stabilizer, a phase change form changing agent, and a phase change temperature regulator; the crystal structure stabilizer comprises at least one of glycerol, sorbitol, propylene glycol and water-soluble silicone oil; and the phase change form changing agent comprises at least one of sodium alginate, gelatin, xanthan gum, water glass, sodium dodecyl sulfonate, calcium chloride and sodium bicarbonate. The application solves the technical problems that the phase change temperature of twelve sodium hydrogen phosphate does not match the human body heat management temperature, the surface of the phase change material liquid-solid phase change, especially the solidified and hardened phase change material, is uneven, the comfort is poor, the cycle stability of the phase change material is poor, and the service life is short, and achieves the technical effect that the materials are compounded to play a high-efficiency synergistic effect, and the flexible phase change energy storage soft paste material is suitable for human body heat management.

The invention aims to disclose a micro-fine particle lepidolite reinforced recovery method based on mineral surface selective dissolution. The method comprises the following steps that (1) surface dissolution is conducted, specifically, a selective solvent WX-R is added into ore pulp, selective dissolution is conducted on the mineral surface under ultrasonic stirring, and the selective solvent WX-R comprises citric acid, oxalic acid and ethylenediaminetetraacetic acid; and (2) flotation is conducted, specifically, an inhibitor WX-I is added into the dissolved ore pulp, full stirring is conducted, then a collecting agent WX-C is added for air inflation flotation, micro-fine-particle lepidolite concentrate and tailings are obtained, the inhibitor WX-I comprises water glass, dextrin and carboxymethyl cellulose, and the collecting agent WX-C comprises oleic acid, dialkyl phosphoric acid, lauryl amine and sodium dodecyl sulfate. According to the method, surface property modification and strengthening of the lepidolite are achieved, the reagent effect is achieved, the recovery rate and grade of Li2O are remarkably improved, and the problem that the recovery efficiency of micro-fine particle lepidolite is low through traditional flotation is solved.

The present invention provides a vapor-phase corrosion inhibitor suitable for a high-temperature gas-cooled reactor steam generator and a preparation method thereof. The vapor-phase corrosion inhibitor comprises the following components, measured in weight percentage: 50-70 wt% of a main corrosion inhibitor, 20-40 wt% of a phosphoric acid corrosion inhibitor, 2-5 wt% of a surfactant, and 5-10 wt% of a corrosion inhibitor aid. The main corrosion inhibitor is a mixture of cyclohexylamine carbonate, sodium benzoate, and ammonium phosphate; the surfactant is sodium octadecyl sulfate or sodium dodecylsulfonate; and the corrosion inhibitor aid is octadecylamine. The vapor-phase corrosion inhibitor of the present invention has a good corrosion inhibition effect and good compatibility with metals, thereby achieving long-term rust protection for metals. The preparation process of the vapor-phase corrosion inhibitor is simple and easy to operate.