591 results about "Dodecyl sulfate" patented technology

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.

This invention discloses a method for extracting PN / PDRN from Lactobacillus bulgaricus and its application in soothing and anti-inflammatory effects. Belonging to the field of biochemistry, this method solves the problems of unstable PN / PDRN sources and susceptibility to contamination in existing technologies. In this invention, the preparation relies on alkaline conditions and lysozyme to initially dissolve the cell wall of Lactobacillus bulgaricus, and then sodium dodecyl sulfate is used to disrupt the bacterial cell membrane, causing it to lyse. The conditions are mild, and PVP is added to protect the PN structure. The final product prepared by this invention effectively improves the purity of the obtained PN / PDRN.

The invention belongs to the technical field of self-repairing materials, and particularly relates to a double-microcapsule self-repairing waterborne polyurethane material and a preparation method thereof. Comprising the following steps: ultrasonically dispersing cellulose nanocrystals in deionized water to form a water phase, adding drying oil and lauryl sodium sulfate, and stirring to obtain the drying oil microcapsule taking Pickering emulsion as a template. Preparing a polyvinylpyrrolidone aqueous solution, a non-polar solvent solution of thiophene monomers and an ammonium persulfate aqueous solution; and mixing and ultrasonically dispersing the two, mixing with an ammonium persulfate aqueous solution, stirring and polymerizing to obtain a polythiophene microcapsule suspension after the reaction is completed, centrifuging until the supernatant is colorless, and washing and drying the solid to obtain the polythiophene microcapsule. And finally, adding the two microcapsules into waterborne polyurethane, uniformly mixing, and drying at room temperature to form the double-microcapsule self-repairing waterborne polyurethane material. According to the invention, the self-repairing and mechanical property improvement of the double-microcapsule self-repairing waterborne polyurethane material under room-temperature natural light are realized.

The invention discloses a core-shell structure P (MMA-MBA) copolymer heat-storage phase-change microcapsule, the microstructure is of a spherical structure, the core-shell structure is adopted, the core structure is hexadecane, the shell structure is a methyl methacrylate (MMA) and N, N-methylene bisacrylamide (MBA) copolymer, the emulsifier is lauryl sodium sulfate (SDS), the initiator is potassium persulfate, and the pH value of the core-shell structure P (MMA-MBA) copolymer heat-storage phase-change microcapsule is 7-8. And the coating efficiency is 70-75%. The preparation method comprises the following steps: 1, preparing an oil phase and a water phase; and 2, polymerization reaction of the microcapsule. A phase change cement material based on a core-shell structure P (MMA-MBA) copolymer heat storage phase change microcapsule is prepared by compounding the P (MMA-MBA) copolymer heat storage phase change microcapsule and a cement matrix, and has hydrophobicity; obvious weightlessness exists in two times.

The invention relates to the technical field of high polymer materials, in particular to a color-spun superfine sea-island imitation sheepskin fabric and a production method thereof. The color-spun superfine sea-island imitation sheepskin fabric comprises the following raw materials in parts by weight: color-spun superfine sea-island fibers, conventional polyester filaments and a functional additive, the color spinning superfine sea-island fiber is formed by blending alkali-resistant color master batches and a sea-island base material, the mass ratio of an island component to a sea component in the sea-island base material is (5-7): (3-5), and raw materials of the island component and the sea component are polyethylene terephthalate and polyethylene respectively; the functional additive comprises an alkali-resistant stabilizer, a dyeing auxiliary agent and a softening agent. According to the invention, sodium citrate and KH-550 in the alkali-resistant stabilizer react at a constant temperature, sodium citrate is dissolved in the process and forms weak interaction with amino of KH-550 to enhance the stability of the system, and ether bonds of polyoxyethylene fatty acid and sulfonic groups of lauryl sodium sulfate in the dyeing auxiliary agent form a synergistic effect to enhance the emulsifying and wrapping capacity to grease and color paste.

The application discloses a lithium mica floating agent, a preparation method thereof and a lithium mica floating method. The lithium mica floating agent has a formula mass ratio of amine 8-35%, ether 10-40%, sodium dodecyl sulfate 8-35%, sodium sulfonate 5-30%, alcohol 10-35% and inorganic alkali 2-15%. The lithium mica floating agent can greatly improve the recovery rate of lithium metal, has very high selectivity to lithium mica, has high floating yield, good purity of the extract and low cost.

The invention discloses a bacterial culture medium for producing algin through liquid fermentation. The bacterial culture medium contains triclosan and SDS (Sodium Dodecyl Sulfate). Tests show that the PIB culture medium added with triclosan and SDS can improve the capability of producing algin by PFAC-PAO1 liquid fermentation. Accordingly, the inventor develops innovative research of optimizing the culture medium, the ChinaYin culture medium is finally obtained, and the specific formula of the ChinaYin culture medium is as follows: 20g / L of tryptone, 1.4 g / L of magnesium chloride, 10g / L of potassium sulfate, 20mL / L of glycerol, 50mu g / mL of triclosan and 125mu g / mL of SDS (Sodium Dodecyl Sulfate). Researches show that by applying the culture medium, the polysaccharide yield is higher than that of a PIB culture medium and a USAYu culture medium, the yield in 48 hours is higher than that of 24 hours and 72 hours, the yield of algin powder obtained in each culture bottle can reach 8 g / L, and it is indicated that the ChinaYin culture medium has the potential of being industrially amplified to be used for fermentation production of bacterial algin.

The invention relates to a preparation method of a platinum-doped hollow gold nanorod with high photo-thermal stability. The invention belongs to the technical field of nano material preparation. The preparation method comprises the following steps: adding a tellurium precursor substance and a selenium precursor substance into a hydrazine hydrate-containing solution, continuously magnetically stirring, and diluting by using an aqueous solution of lauryl sodium sulfate after the reaction is completed, so as to obtain the tellurium-selenium nanorod; and dispersing the prepared tellurium-selenium nanorod in pure water, adding a gold precursor, a platinum precursor and a modifier at the same time, and then performing centrifugal separation to obtain the platinum-doped hollow gold nanorod. The thermal stability of the hollow gold nanorod is effectively improved through platinum doping, and when the platinum doping proportion is 10% or above, the light and heat stability of the hollow gold nanorod is obviously improved; the positive significance is realized on the full play of the effect of the material in photo-thermal therapy and related combined therapy application.

The invention relates to the technical field of textiles, in particular to high-breathability antibacterial lining cloth and a preparation method thereof. The preparation method comprises the following steps: adding ethyl methacrylate, hydroxyethyl acrylate, modified chitosan, modified silver-loaded titanium dioxide, modified lignin and a lauryl sodium sulfate solution to obtain a pre-emulsion; and adding a lauryl sodium sulfate solution, a sodium bicarbonate solution and an ammonium persulfate solution into the pre-emulsion to obtain the acrylic acid adhesive. The high-breathability polyester fabric is soaked in the acrylic acid adhesive for 1-2 min, roll compacting and baking are conducted after soaking is completed, and the high-breathability antibacterial lining cloth is obtained. The high-breathability antibacterial lining cloth prepared by the preparation method has excellent antibacterial performance and ultraviolet resistance, so that the high-breathability antibacterial lining cloth has a wide application prospect in the technical field of textiles.

The invention relates to a current collector based on DNA coating and a preparation method and application thereof, and belongs to the technical field of lithium batteries. The preparation method of the current collector based on DNA coating comprises the following steps: (1) adding aloe gel tissue into an SDS (Sodium Dodecyl Sulfate) buffer solution for cracking to obtain a cracking solution, then adding a NaCl solution for treatment, and filtering to obtain a filtrate; (2) adding an organic solvent into the filtrate for precipitation, carrying out solid-liquid separation to obtain an active substance containing DNA, and preparing a solution containing DNA; and (3) covering the surface of the silver foil with a solution containing DNA, standing, and drying to form a coating layer, thereby obtaining the current collector based on DNA coating. The silver current collector is coated with DNA extracted from aloe, strong interface bonding is achieved, lithium dendrite growth can be efficiently inhibited, the cycling stability of the lithium battery is improved, and the cruising ability is improved.

The invention relates to the field of separation and purification, in particular to an anti-pollution nanofiltration membrane for magnesium-lithium separation, the anti-pollution nanofiltration membrane comprises a base membrane and a functional layer, and the functional layer is prepared from the following raw materials in parts by weight: a water phase: 1.5-2.5 parts of piperazine, 0.1-1 part of lauryl sodium sulfate, 0.5-2 parts of glycerol, 1-2 parts of triethylamine, 0.6-2 parts of ionic polymer, and the balance of water for supplementing the total amount of the water phase to 100 parts; the ionic polymer comprises at least one of sulfobetaine metacrylic acid ester, sulfobetaine and carboxyl betaine metacrylic acid ester; and an oil phase: 0.1-1 part of trimesoyl chloride, and the total amount of the oil phase is supplemented to 100 parts by normal hexane or isoparaffin. The ionic polymer is added, and a compact hydration layer is formed on the surface of the membrane by using a betaine group of the ionic polymer, so that the membrane pollution probability is reduced, and common inorganic scaling and organic pollution in the high-salt brine are remarkably inhibited; in addition, the ionic polymer enables the membrane surface to have strong negative electricity, and the magnesium ion rejection rate is improved; and the ionic polymer can also reduce the lithium ion transmission energy barrier and reduce the rejection rate.

The invention discloses a microcapsule phase change cement material, which is prepared by compounding a microcapsule with phase change performance and a cement matrix, the microcapsule is of a core-shell structure, the raw materials of the shell are melamine, urea and formaldehyde, the raw material of the core material is octadecane, and Tween 80 and lauryl sodium sulfate are used as emulsifiers. The preparation method comprises the following steps: 1, preparing an MUF resin prepolymer; 2, preparing a core material O / W emulsion; 3, polymerization reaction of the microcapsules; and 4, preparing the microcapsule phase change cement material. When the composite material is used as a cement-based composite material, the melting temperature ranges from 25 DEG C to 29 DEG C, the crystallization temperature ranges from 19 DEG C to 23 DEG C, the melting enthalpy ranges from 13.47 J / g to 29.78 J / g when the mixing amount is 10%-30%, the crystallization enthalpy ranges from 12.94 J / g to 28.41 J / g, and the coating efficiency is 67.5%. The initial decomposition temperature ranges from 386.13 DEG C to 390.96 DEG C, the finishing temperature ranges from 399.49 DEG C to 406.42 DEG C, and the maximum degradation temperature ranges from 438.78 DEG C to 443.64 DEG C; the heat conductivity coefficient is 0.3216 to 0.3949, and is improved by 39.4 percent compared with that of standard cement.

The invention relates to a novel quaternary ammonium salt modified positively charged nanofiltration membrane and a preparation method thereof, and belongs to the technical field of membrane separation. Adding the prepared novel quaternary ammonium salt monomer QAC serving as an additive into a water-phase solution containing an amine monomer and lauryl sodium sulfate (SDS) to form a mixed water-phase solution; and carrying out polymerization reaction with acyl chloride monomers in an oil phase on a water-oil interface by an interfacial polymerization method to realize preparation of the novel quaternary ammonium salt modified positively charged nanofiltration membrane. The QAC monomer serving as a novel end-capping reagent can react with acyl chloride groups in acyl chloride monomers in the interfacial polymerization process, so that further reaction between the QAC monomer and amine monomers in a water phase is prevented, the crosslinking degree of a macromolecular network structure in the polymerization process is reduced, and the permeation flux of the composite membrane is favorably improved. Meanwhile, the quaternary ammonium salt structure also effectively enhances the positive charge density of the surface of the nanofiltration membrane, so that the interception performance of the nanofiltration membrane on divalent magnesium ions in the magnesium-lithium separation process is enhanced, and efficient separation of magnesium and lithium is realized.

The invention relates to the field of biomimetic materials, in particular to a biomimetic self-cleaning anti-fouling aquaculture net cage material, a preparation method and application of the biomimetic self-cleaning anti-fouling aquaculture net cage material. 0.5 to 2.0 parts by weight of a carboxylated graphene nanosheet; 2.0 to 5.0 parts by weight of nitrogen-doped titanium dioxide nanoparticles; 1.0 to 3.0 parts by weight of silica nanoparticles; 5.0 to 10.0 parts by weight of calcium ion cross-linked modified sodium alginate; 1.0 to 3.0 parts by weight of octadecyl trichlorosilane; 0.5 to 1.5 parts by weight of lauryl sodium sulfate; through the synergistic effect of a double bionic structure and enhanced photocatalysis, the effective inhibition on attachment of various organisms is realized, and the inhibition rate on attachment organisms such as algae, bacteria and barnacles reaches 75% or above.

The invention discloses a preparation method of polyurethane leather with electric conduction, infrared stealth and ultraviolet aging resistance functions, and relates to a textile material technology. The preparation method comprises the following steps: firstly, weighing 50g of waterborne polyurethane, adding a dispersing agent, and stirring in a dispersing machine at the rotating speed of 1,000 rpm for 10 minutes; sequentially adding a certain amount of graphene, carbon black, carbon fiber powder and copper powder into the dispersion system to serve as functional particles, adding one kind of functional particles every 5 minutes, and stirring for 5 minutes after adding one kind of functional particles; then adding 0.12 g of lauryl sodium sulfate and 1.2 g of a flatting agent, and continuously stirring for 10 to 20 minutes until the viscosity of the system reaches 30000 Pa.s; and finally, a heating scraper and winding bar integrated coating testing machine is used for coating to manufacture the leather. The polyurethane leather with the conductive, infrared stealth and ultraviolet aging resistant functions is prepared, the polyurethane leather has the conductive, infrared stealth and ultraviolet aging resistant functions, the flexibility and mechanical performance of the material can be kept, and the polyurethane leather can adapt to various complex application environments.

This invention discloses a biomass asphalt hard carbon material, negative electrode, battery, and preparation method from waste peels of the citrus fruit. It belongs to the technical field of biomass hard carbon materials for sodium-ion batteries. The preparation of the asphalt hard carbon includes: using waste peels of the citrus fruit and asphalt as raw materials, activating them separately with sodium dodecyl sulfate and naphthalene, then performing pre-carbonization and pre-oxidation, followed by mixing, acidification, and carbonization treatments to obtain biomass asphalt hard carbon. This invention efficiently recycles and utilizes the widely available and high-density waste peels of the citrus fruit, turning waste into treasure. Simultaneously, it employs a green and simple preparation method to obtain biomass asphalt hard carbon with a large interlayer spacing, small specific surface area, and abundant closed-cell volume, significantly improving carbon recovery.

The invention discloses a preparation method of an organic-inorganic composite microcapsule as well as an obtained product and application of the organic-inorganic composite microcapsule. The preparation method comprises the following steps: firstly, preparing a MoS2-metal composite material by adopting pulse laser irradiation, mixing the MoS2-metal composite material, PAO5 oil, polysulfone and an organic solvent to obtain an organic phase, and dissolving lauryl sodium sulfate and polyvinyl alcohol in water to obtain a water phase; and mixing the organic phase and the water phase, and obtaining the microcapsule by adopting a solvent evaporation method. The method disclosed by the invention is simple to operate and low in cost, and the obtained microcapsule can automatically store a lubricant and has excellent tribological performance in the friction process.

The invention belongs to the technical field of coal washing flotation reagents, and discloses a synthesis process of an environment-friendly coal washing flotation reagent foaming agent, and the synthesis process comprises the following steps: composite reaction; water phase fusion; according to the method, biodegradable alcohols such as pentanol and sec-octanol are adopted as main raw materials, and poloxamer and glycerol are matched, so that the problem of toxic residue of a traditional hydrocarbon foaming agent is avoided. In the synthesis process, low-boiling-point impurities are removed through molecular sieve filtration and a rotary evaporator, it is ensured that the purity of the raw materials is larger than or equal to 99.5%, the proportion of the final product deionized water reaches 40-50%, the use amount of an organic solvent is greatly reduced, nanoscale wrapping of alcohol molecules by an emulsifier OP-10 is achieved through a gradient water adding method and an ultrasonic-assisted emulsification technology, and the content of the alcohol molecules is reduced. And a microemulsion structure with high interfacial film strength is formed. After lauryl sodium sulfate is added as an auxiliary emulsifier, the strength of an oil-water interfacial film is improved by 30% or above, and the half-life period of foam is prolonged to 1.8 times of that of a traditional process.

The application belongs to the technical field of self-repairing materials, and particularly relates to a kind of double-microcapsule self-repairing water-based polyurethane material and its preparation method. It comprises: ultrasonic dispersion of cellulose nanocrystals in deionized water to form an aqueous phase, adding dry oil and sodium dodecyl sulfate, and stirring to obtain a dry oil microcapsule with a Pickering emulsion as a template. Then, polyvinylpyrrolidone aqueous solution, non-polar solvent solution of thiophene monomer and ammonium persulfate aqueous solution are prepared. The first two are mixed and ultrasonically dispersed, then mixed with the ammonium persulfate aqueous solution and stirred to polymerize. After the reaction is completed, polythiophene microcapsule suspension is obtained. After centrifugation, the supernatant is colorless. The solid is washed and dried to obtain polythiophene microcapsules. Finally, the two kinds of microcapsules are added to the water-based polyurethane, mixed uniformly, dried at room temperature to form a double-microcapsule self-repairing water-based polyurethane material. The application realizes the self-repairing and mechanical property improvement of the double-microcapsule self-repairing water-based polyurethane material under room temperature natural light.

The application discloses a preparation method of a samarium trioxide doped lead zirconate titanate lead niobate piezoelectric fiber sensor. The application first prepares samarium trioxide doped lead zirconate titanate lead niobate ceramic; the ceramic is ground into powder and added into a sodium alginate solution, sodium dodecyl sulfate and citric acid are sequentially added, excessive water is added into the solution to obtain a low-viscosity slurry; then ball milling is carried out to break the agglomerates and obtain a uniform suspension, finally the slurry is injected into a CaCl2 solution to obtain a fiber, and the fiber is dried at room temperature and then calcined for the third time. The application precisely controls the molar ratio of raw materials, the reaction temperature, the reaction time and the doping ratio, guarantees the high-quality preparation of PNN-PZT / x Sm2O3 ceramic and fiberized piezoelectric ceramic, and makes the prepared piezoelectric fiber sensor have excellent piezoelectric performance and can more sensitively detect external signals.

A PVA-free laundry sheet and a preparation method therefor. Raw materials of the laundry sheet comprise by parts by weight: 5-15 parts of cellulose, 10-30 parts of sodium dodecyl sulfate, 5-20 parts of sodium α-olefin sulfonate, 5-20 parts of sodium dioctyl sulfosuccinate, 5-10 parts of cocamidopropyl betaine, 2-10 parts of glycerol, and 0.1-2 parts of a chelating agent. The viscosity of the cellulose is 100-1000 mpa•s. The cellulose having a specific viscosity is used as a binder, and is mixed with a surfactant having specific components to prepare the laundry sheet.

The embodiment of the invention discloses a standard substance for simulating biological Zeta potential detection and a preparation method thereof. The method comprises the following steps: (1) preparing a 100-500nm carboxylated nano-microsphere suspension by adopting an emulsion polymerization method; (2) carrying out suction filtration on the 100-500nm carboxylated nano-microsphere suspension through a filter membrane to obtain filtrate; and (3) preparing a phosphate buffer solution with a standard concentration by using the filtrate as a solvent, adding lauryl sodium sulfate, and aging to obtain the standard substance for simulated organism Zeta potential detection. The standard substance provided by the invention can be used for calibrating and verifying a Zeta potential detection instrument, so that the detection accuracy and reliability are improved; meanwhile, the material can be used as an important tool for researching the property and function of surface charges of biomolecules, powerful support is provided for research in the fields of biomedicine and material science, and in addition, the preparation method has the advantages of being simple in process, high in repeatability and capable of simulating Zeta potentials of different biological systems and has a good application prospect.

The application discloses a kind of special sulfur-based compound fertilizer of leaf vegetable, preparation method and device, belong to compound fertilizer preparation technical field.The preparation of the compound fertilizer includes the following steps: sulfur, anhydrous ethanol are mixed and stirred, constant temperature oscillation, stand until clear state, take supernatant and mix with distilled water, oscillation, add sodium dodecyl sulfate, oscillation, add coating agent, oscillation, obtain material B, stand by;Ammonia is introduced into phosphoric acid to adjust to pH 4.3-4.8, filter pressing, collect filtrate to obtain feed liquid D;Material B is filtered, and the filter residue is collected and mixed with feed liquid D, guar gum and locust bean gum are added, oscillation is carried out, a mixed slurry is obtained, granulation is carried out, drying is carried out, screening is carried out, and cooling is carried out, to obtain the compound fertilizer, improve the sulfur and phosphorus ammonium slurry combination degree, avoid the loss of fertilizer efficiency, prevent the occurrence of safety hazards.

This invention relates to the field of wastewater treatment technology, specifically to a highly efficient adsorbent wastewater treatment agent and its preparation method, comprising the following raw materials in parts by weight: 50-70 parts activated carbon powder, 8-12 parts deionized water, 5-10 parts ammonium bicarbonate, 1-3 parts sodium dodecyl sulfate, 15-25 parts additive A, and 8-15 parts additive B. In this invention, the stably loaded cerium ions can effectively exert their specific coordination and capture effect on heavy metals. The chitosan introduced into the carrier can enhance the electrostatic and chelate adsorption of anionic pollutants and organic molecules. Simultaneously, the well-developed pores formed after shellac carbonization combine with the network structure of chitosan, further increasing the specific surface area of ​​the material and the adsorption capacity of organic pollutants, achieving highly efficient and stable adsorption of heavy metals, dyes, and organic pollutants.

A pest control composition includes from about 4 wt % to about 10 wt % of sodium lauryl sulfate; one or more C5 to C9 hydrotropic salt; from about 1 wt % to about 10 wt % of one or more active ingredients selected from the group consisting of corn mint oil, peppermint oil, spearmint oil, rosemary oil, thyme oil, citronella oil, clove oil, cedarwood oil, cinnamon oil, geranium oil, eugenol, 2-phenylethyl propionate, menthol, menthone, thymol, carvone, camphor, methyl salicylate, p-cymene, linalool, geraniol, cinnamyl acetate, cinnamic alcohol, cinnamaldehyde, citronellol, eucalyptol / 1,8-cineole, alpha-pinene, bornyl acetate, gamma-terpinene, and combinations thereof; and from about 60 wt % to about 95 wt % of water. The pest control composition exhibits a water peak in a 2H spectrum having a width encompassing 90% of the area of the entire water signal of about 50 Hz or more, as determined by the 2H NMR Method.

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 invention discloses a decontamination and dust fall reagent as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preparing a compound solution: adding ferrous gluconate, sodium alkyl sulfosuccinate, sodium alcohol ether sulfate, lauryl sodium sulfate and polyacrylamide into deionized water according to the mass fraction of 0.10%-0.15%, 0.05%-0.20%, 0.05%-0.15%, 0.10%-0.15% and 0.005%-0.02% respectively to obtain the compound solution; (2) preparing micro-nano bubble water; and (3) adding the compound solution into the micro-nano bubble water in a volume ratio of 1: (0.5-2), and fully mixing the compound solution and the micro-nano bubble water to obtain the decontamination and dust fall reagent. According to the decontaminating and dust-settling reagent prepared by the invention, an environment-friendly surfactant is selected, so that dust can be settled, toxic and harmful gases generated by explosion can be removed by utilizing the characteristic that micro-nano bubble water directly participates in catalytic oxidation, and a good decontaminating and dust-settling effect is achieved.

The application belongs to the technical field of lithium ion cylindrical batteries, and particularly relates to a negative electrode slurry, a preparation method thereof, a negative electrode sheet and a cylindrical battery. The negative electrode slurry comprises an active material, a conductive agent, a binder, a composite surfactant and water. The composite surfactant comprises an anionic surfactant and a cationic surfactant. Preferably, the anionic surfactant is one or more of sodium dodecyl sulfate SDS and sodium dodecyl benzene sulfonate SDBS. The cationic surfactant is one or more of cetyltrimethylammonium bromide CTAB and cetyltrimethylammonium chloride CTAC. The solid content of the negative electrode slurry is 9% to 60%. In the application, the anionic and cationic surfactants are compounded to form a composite surfactant which is introduced into the porous current collector negative electrode system. The electrostatic interaction between the anionic and cationic surfactants and the synergistic effect of the anionic and cationic surfactants are utilized, so that the obtained negative electrode sheet has better wettability, uniform morphology and no agglomeration.

The invention discloses a self-repairing gel foam system and a preparation method thereof. The self-repairing gel foam system is composed of 0.3% of lauryl sodium sulfate, 3% of alpha-starch, 3% of acrylamide monomer, 0.1% of N, N '-methylene bisacrylamide cross-linking agent, 0.2% of potassium persulfate initiator and 0.002% of 30nm nano SiO2 particles modified by 0.05 wt% of fatty alcohol-polyoxyethylene ether. The preparation method comprises the following steps: enabling modified starch, acrylamide and the like to react to form starch gel, adding lauryl sodium sulfate and modified nano SiO2, and stirring to obtain the modified starch gel. Gel macromolecular aggregates in the system form a three-dimensional network structure, nanoparticles are uniformly dispersed on the surface of a liquid film to form a gas-liquid-solid three-phase skeleton, and a self-repairing function is realized through a hydrogen bond dynamic effect, so that bubble coalescence can be inhibited, and the capabilities of resisting hypersalinity, high temperature, gas condensate and methanol are enhanced; the problems that traditional foam is poor in stability and free of self-repairing capacity are solved, and the drainage gas recovery requirements of complex working conditions of western gas fields are met.

The application discloses a preparation method and application of Lactobacillus plantarum fermentum based on environmental stress, and comprises the following steps: activating Lactobacillus plantarum; inducing and culturing the Lactobacillus plantarum in a culture medium containing sodium dodecyl sulfate to obtain Lactobacillus plantarum under environmental stress; dissolving milk powder in deionized water, adding alkaline protease, adjusting the pH to 7-10, and performing enzymolysis to prepare an enzymolysis solution; mixing the enzymolysis solution with sugar to obtain a fermentation substrate; inoculating the Lactobacillus plantarum into the fermentation substrate, performing fermentation culture, centrifuging to collect supernatant, sterilizing, and obtaining the Lactobacillus plantarum fermentum under environmental stress. It is found for the first time that sodium dodecyl sulfate stress can promote the synthesis of anti-inflammatory peptides of Lactobacillus plantarum, and the efficacy threshold of a natural strain is broken. The method is mild in conditions, simple in operation, is conducive to industrialized production, and fully guarantees the stability of product quality.