65 results about "Sorbitan Monooleate" patented technology

The invention relates to the technical field of western-style clothes processing, in particular to an anti-wrinkle western-style clothes fabric and a processing technology thereof.The anti-wrinkle western-style clothes fabric is prepared by finishing base cloth through finishing liquid, the base cloth is wool blended fabric, and the wool blended fabric comprises wool, polyester fibers, lyocell fibers, spandex and conductive fibers; the finishing liquid is prepared from the following raw materials in parts by weight: 1 to 4 parts of polyoxyethylene sorbitan monooleate, 0.1 to 1 part of cocamidopropyl betaine, 2 to 6 parts of a fiber protecting agent, 80 to 120 parts of carboxyl-terminated hyperbranched polyester, 40 to 60 parts of butanetetracarboxylic acid, 30 to 50 parts of poloxamer, 0.1 to 2 parts of a silane coupling agent, 2 to 4 parts of an aziridine cross-linking agent and 900 to 1100 parts of water; the fabric has the advantage that the crease resistance of the business suit fabric is improved.

The present invention relates to ophthalmic compositions comprising troxerutin and a surfactant selected from the group consisting of polyoxyl 35 castor oil, polyoxyl 40 hydrogenated castor oil, polyoxyethylene (20) sorbitan monooleate, polyoxyethylene (20) sorbitan monolaurate, and mixtures thereof, wherein the weight ratio of troxerutin to the surfactant is from 0.02:1 to 100:1, wherein the surfactant is present in an amount of up to 7 wt% with respect to the total weight of the composition, and wherein the composition is in the form of a solution, a suspension or a gel. The invention also relates to said composition for use in the treatment of dry eye disease.

This application relates to the field of feed processing technology and discloses a highly absorbable feed composition for nursery pigs containing compound probiotics. The composition includes the following ingredients: a basal diet, a live bacteria compound powder composed of freeze-dried *Lactobacillus plantarum* powder and freeze-dried *Bacillus coagulans* powder, medium-chain triglycerides, a PIT-responsive compound emulsifier composed of polysorbate-80 and sorbitan monooleate, anhydrous trehalose, glycerol, a micron-sized confinement carrier, which is a porous carrier obtained by high-temperature expansion and vacuum degassing of perlite powder, and fumaric acid. This invention employs anhydrous trehalose and glycerol to construct a high-permeability system, combined with medium-chain triglycerides and a compound emulsifier to form an oil-phase encapsulation, achieving the technical effect of effectively blocking external moisture penetration and improving the heat resistance of the bacteria.

The present application relates to the field of frother, in particular to a kind of copper flotation collector frother and preparation method thereof, by weight parts, including the following raw materials: N,N-dibutyl dithiocarbamic acid propyl cyanurate 100-120 parts, O-butyl-N-isobutyl thiopropyl carbamate 12-18 parts, xanthate 12-18 parts, phosphate ester polypropylene glycol ether 15-20 parts, modified betaine 5-8 parts, alcohol ether 3-5 parts, slime inhibitor 1-3 parts, alcohol ether carboxylate 2-5 parts, sorbitan monooleate 0.8-1.2 parts. Through the synergies of each raw material, the collector capacity, selectivity in copper flotation process can be effectively improved, and the reagent stability is good.

The invention provides an essence lotion with an anti-aging function and a preparation method thereof, and belongs to the technical field of cosmetics, the essence lotion comprises a phase A, a phase B, a phase C and a phase D, wherein the phase A consists of glyceryl distearate, jojoba oil and vitamin E; the phase B is prepared from deionized water, glycerol, 1, 3-propylene glycol, methylparaben and polyoxyethylene sorbitan monooleate; the phase C is a citric acid solution; and the phase D consists of exosomes from four fruit sources of blueberries, pomegranates, lemons and grapefruits. According to the technical scheme, exosomes from blueberries, pomegranates, lemons and grapefruits are scientifically compounded, an anti-aging network with a synergistic effect is constructed, good stability and biocompatibility are achieved, and many problems existing in traditional anti-aging cosmetic ingredients are solved.

The invention provides a high-temperature-resistant water shutoff agent as well as preparation and application thereof. The water shutoff agent is prepared from the following components in parts by weight: 100 to 110 parts of sodium lauryl alcohol phthalate, 45 to 55 parts of polyoxyethylene sorbitan monooleate, 60 to 70 parts of lignin surfactant, 65 to 75 parts of alpha-olefin sulfonate and 330 to 380 parts of oleic acid. The preparation process of the water shutoff agent comprises the following steps: adding the sodium lauryl alcohol ester phthalate and the polyoxyethylene sorbitan monooleate into a reaction kettle, and uniformly stirring to obtain a first reaction solution; adding a lignin surfactant and alpha-olefin sulfonate into the first reaction solution at one time, and uniformly stirring to obtain a third reaction solution; equally dividing oleic acid into two groups, adding one group of oleic acid into the third reaction solution, and uniformly stirring to obtain a fourth reaction solution; and adding another group of oleic acid into the fourth reaction liquid, uniformly stirring, and standing to obtain the water shutoff agent. The problems that a water plugging agent is poor in plugging effect in a high-temperature oil reservoir and low in crude oil recovery rate can be solved.

Pharmaceutical aerosol formulations containing pre-micronized albuterol sulfate, high amount of green propellant trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), and a surfactant (polysorbate 80 (polyoxyethylene (20) sorbitan monooleate), polysorbate 20 (polyoxyethylene (20) sorbitan monolaurate), polyethylene glycol 1000, span 85 (sorbitan trioleate), polyvinylpyrrolidone K25, or their combination) in a pressurized metered dose inhaler are described. The formulations do not use any co-solvent, i.e., they are co-solvent-free (e.g., free of ethanol, glycerol, propylene glycol, and a combination thereof). The formulations provide highly efficient delivery, through metered dose inhaler (MDI), of pre-micronized albuterol particles into the patients' respiratory tracts and have the advantages of high efficacy, improved safety, and a low global warming potential (GWP) for environmental impact.

The invention discloses a botanical formula of a gerbera jamesonii thrip repellent and a preparation method thereof, and belongs to the technical field of botanical pesticides. The formula comprises the following components in parts by weight: 30-35 parts of tea saponin, 30-35 parts of cynanchum komarovii, 15-20 parts of rangooncreeper fruit, 5-8 parts of menthol, 3-5 parts of wormwood extract, polyoxyethylene sorbitan monooleate, ethylene glycol, citric acid or sodium hydroxide and the balance of deionized water, and the proportion of each core component in the optimal formula is accurately optimized. The preparation method comprises the steps of raw material pretreatment, ultrasonic-assisted extraction, slow fire decoction and filtration, concentration, compounding and emulsification, canning and storage and the like, and key process parameters are optimized to guarantee the extraction rate of effective components and product stability. Through the synergistic effect of multiple components, the thrip repellent rate reaches 95.3%-97.8%, the thrip repellent has a remarkable repellent effect on trialeurodes vaporariorum and red spiders, the lasting period is prolonged to 14-18 days, and the thrip repellent is suitable for various flowers and planting scenes.

The invention discloses oxidized paraffin and antirust wax and a preparation method thereof, and relates to the field of paraffin. The antirust wax comprises oxidized paraffin, an emulsifier, an antirust agent and water, and the emulsifier is at least one of sorbitan monooleate, lauryl sodium sulfate and fatty alcohol-polyoxyethylene ether; the antirust agent is at least one of cyclohexylamine stearate, alkenyl succinic acid and alpha-mercaptobenzothiazole; the oxidized paraffin is loaded with a Mn metal element through a carrier. The catalyst loaded with the active component Mn is added in the preparation process of the oxidized paraffin, the acid value and the soap value of the oxidized paraffin are effectively increased, the oxidized paraffin interacts with the specific emulsifier and the antirust agent, the emulsifier does not affect the anti-oxidation protection function of functional components, and meanwhile, the antirust agent and the oxidized paraffin cooperate with each other to achieve the anti-corrosion effect in a synergistic mode; and the antirust capability of metal in a humid and hot environment and an acid-base environment is improved, and the application prospect is expanded.

The invention discloses a high-performance anti-rust oil composition and a preparation method thereof, and belongs to the field of soft film anti-rust oil, the high-performance anti-rust oil composition comprises the following components: 70-80 parts of base oil, 1-3 parts of a film-forming agent and 15-30 parts of an anti-rust agent, the base oil is selected from 10 # white oil, 60N base oil, 150N base oil and 500N base oil, and the film-forming agent is selected from a film-forming agent and an anti-rust agent. The antirust agent is selected from a compound of barium petroleum sulfonate, sodium sulfonate, calcium petroleum sulfonate, barium dinonyl naphthalene sulfonate, dodecenylsuccinic acid, alkenyl succinic acid half ester and sorbitan monooleate, and the film-forming agent is selected from a compound of oxidized paraffin butyl ester, oxidized wax, lanolin pentaerythritol ester and lanolin magnesium soap. The anti-rust oil composition can simultaneously achieve excellent comprehensive protection performance such as physical isolation, chemical adsorption and salt mist resistance, the anti-rust effect in high-humidity and high-salt environments such as marine transportation is remarkably improved, and compared with conventional soft film anti-rust oil, the anti-rust oil composition has longer-acting corrosion inhibition capacity and better lubricating stability.

The present invention discloses an environmentally friendly, wear-resistant water-based polyurethane mortar floor and a preparation method thereof, relating to the technical field of water-based polyurethane mortar floors. The floor comprises a ground base and a water-based polyurethane mortar layer on the surface of the ground base, wherein the ground base is made of concrete; the polyurethane mortar layer has a thickness of 2-5 mm; and the water-based polyurethane mortar layer is obtained by preparing a water-based polyurethane mortar from a water-based polyurethane emulsion, a functional color paste, and concrete mortar. The water-based polyurethane emulsion comprises castor oil, hydroxypropyl-terminated polydimethylsiloxane, calcium phosphate emulsion, isophorone diisocyanate, 2,2-bis(hydroxymethyl)butyric acid, dibutyltin dilaurate, 2-(2-hydroxyphenyl)-2H-benzotriazole, arbutin, sorbitan monooleate, triethylamine, hydrazine hydrate, and γ-aminoethylaminopropyltrimethoxysilane. The concrete mortar comprises cement, standard sand, modified calcium phosphate microspheres, and water.

According to various embodiments, a glove is provided with improved hydration characteristics and low dermatitis potential. The glove comprises a substrate and a polymer system that coats a surface of the substrate. The polymer system comprises: a polyol, a botanical extract, an emollient agent, a silicone copolymer dispersion, a lubricant, and a surfactant. The substrate may be free of sulphur and accelerators. An example formulation of the polymer system may comprise glycerol, Aloe vera, a carnauba wax dispersion, dimethicone, a polyalkylene glycol (PAG), and polyoxyethylene (20) sorbitan monooleate. The polymer system may be applied to the\surface of the substrate by dipping the surface into a water-based dispersion of the polymer system, or spraying the water-based dispersion onto the interior surface. The polymer system may be blended into water at a total solids content of 0.8% to 1.2% w / w to form the water-based dispersion.

The invention discloses a sintering slurry, a diffusion layer and a preparation method thereof, and relates to the technical field of capacitor electrode slurry, the sintering slurry comprises the following components in parts by weight: 60-68 parts of silver powder, 23-30 parts of an organic carrier and 6-10 parts of an inorganic additive; the organic carrier is prepared from polymethyl methacrylate, monomer resin, diethylene glycol monobutyl ether, medium-chain unsaturated fatty acid, 2-ethyl-1-hexanol and polyoxyethylene sorbitan monooleate; the inorganic additive comprises nano barium titanate and cerium oxide. According to the invention, the sintering slurry is directionally diffused under the action of gravity in the sintering process to form an internal net-shaped shielding structure, so that the purposes of reducing the manufacturing precision requirement of the ultra-wideband capacitor, improving the pressure resistance, reducing the metal migration risk and improving the design freedom degree are achieved.

The invention belongs to the technical field of biological medicine, and particularly discloses a sprayable double-network hydrogel microsphere adhesive and a preparation method and application thereof.The preparation method comprises the following steps that liquid paraffin, sorbitan monooleate and polyoxyethylene sorbitan monolaurate serve as oil phases, and an emulsion is formed; fully mixing the emulsion with petroleum ether, centrifugally separating gel microspheres, freeze-drying, and storing in a dark place; preparing a ropivacaine liposome; and adding ultrapure water into the lipid membrane to obtain a primary liposome suspension, adsorbing the liposome by using the hydrogel microspheres, and collecting the obtained dual-network hydrogel microspheres. According to the sprayable double-network hydrogel microsphere adhesive as well as the preparation method and the application thereof, prepared hydrogel microspheres can quickly and consistently cover irregular wounds, and liposome loaded with ropivacaine provides continuous analgesic release, so that the painful wound healing effect is improved. By simultaneously solving the problems of maintaining continuous adhesion and prolonging pain relief in blood-saturated wounds.

The application discloses a trinitrotoluene-based composite melt-cast explosive and a preparation method and application thereof, wherein the trinitrotoluene-based composite melt-cast explosive is prepared from trinitrotoluene, a physical insensitive agent and a bidirectional functional structure directing agent according to certain mass percentage components; the physical insensitive agent is microcrystalline wax, and the bidirectional functional structure directing agent is sorbitan monooleate; the sorbitan monooleate is used for synchronously realizing interface compatibility and interface combination between the trinitrotoluene and the microcrystalline wax, and regulating the crystallization behavior of the trinitrotoluene. The melt-cast explosive realizes high uniformity and high consistency of engineering charging quality, and the mechanical, safety and detonation performances are synergistically enhanced.

The invention provides a pharmaceutical formulation containing a particulate porous adsorbent selected from the group of aluminosilicates and their salts, with a neutral or basic pH and a particle size between 50 and 800 μm, onto which a mixture of polyoxyethylene sorbitan monooleate (polysorbate 80) is applied with at least one cannabinoid selected from cannabidiol, cannabigerol, cannabinol, D9-THC, and D8-THC. This formulation improves the bioavailability and release profile of the cannabinoids.

This invention relates to ophthalmic compositions comprising troxerutin and a surfactant selected from polyoxyethylene 35 castor oil, polyoxyethylene 40 hydrogenated castor oil, polyoxyethylene (20) sorbitan monooleate, polyoxyethylene (20) sorbitan monolaurate, and mixtures thereof, wherein the weight ratio of troxerutin to the surfactant is from 0.02:1 to 100:1, wherein the surfactant is present in an amount of up to 7% by weight relative to the total weight of the composition, and wherein the composition is in the form of a solution, suspension, or gel. The invention also relates to the compositions for treating dry eye disease.

The invention discloses an optical glass cleaning agent and a preparation method thereof, and belongs to the technical field of optical glass cleaning. The cleaning agent is especially suitable for cleaning greasy dirt, dust and organic residues on the surface of a high-precision optical element (such as a lens, a prism and an optical filter), corrosion to a glass substrate in the cleaning process can be avoided, and residues are reduced. The glass cleaning agent is prepared from the following components in parts by mass: 70 parts of deionized water, 5 parts of modified silicon dioxide, 3 parts of maleic anhydride grafted modified polyvinyl alcohol, 4 parts of maleic anhydride grafted modified polyoxyethylene sorbitan monooleate, 2 parts of citric acid, 1 part of sodium dodecyl benzene sulfonate and 3 parts of ethylene glycol butyl ether.

The invention discloses a high-flux anti-pollution polyvinylidene fluoride hybrid ultrafiltration membrane, a preparation method and application thereof. The preparation method comprises the following steps: using potassium hydroxide and ethanol as raw materials to prepare an alkaline solution, adding polyvinylidene fluoride, a first catalyst and the alkaline solution into a reaction container, stirring evenly to form a mixed solution for reaction, and then washing and drying to obtain alkali-treated defluorinated polyvinylidene fluoride; dissolving ethylenediamine in distilled water, adding graphene, a coagulant and a coupling agent, stirring evenly to form a mixed solution, heating in a water bath, and then washing and drying to obtain aminated graphene oxide; a chemical grafting method comprises the following steps: adding defluorinated polyvinylidene fluoride, aminated graphene oxide particles and a second catalyst into a methanol solvent for reaction, and then washing and drying; adding alkali-treated polyvinylidene fluoride aminated graphene oxide powder, polyethylene glycol, methyl pyrrolidone and polyoxyethylene sorbitan monooleate into a three-necked flask, heating in a water bath to obtain a membrane casting solution; and performing degassing treatment to obtain the ultrafiltration membrane.

The invention belongs to the technical field of food brewing, and particularly relates to a method for improving the semi-solid state fermentation distillation efficiency of red date wine and application of the method. The defoaming agent composition prepared by compounding polydimethylsiloxane, polyoxypropylene oxyethylene glyceryl ether, sorbitan monooleate, 1, 2-propylene glycol and other components is used in the semi-solid fermentation distillation process of the red date wine, the generation of foam in the distillation process is inhibited from the source, the generated foam can be quickly eliminated, and the effect of improving the quality of the red date wine is achieved. The problem of foam channeling in red date wine distillation is thoroughly solved, and under the same steam pressure and time, the distillation time can be shortened by 25%-40%, and the wine yield is increased by 6%-11.11%.

The invention provides a modified cellulose fiber based on hyaluronic acid-titanium dioxide composite material microcapsules and a preparation method of the modified cellulose fiber. The preparation method of the modified cellulose fiber comprises the following steps: S1, adding hyaluronic acid, a silane coupling agent and titanium dioxide into an ethanol / water mixed solvent, and stirring to obtain core liquid; s2, adding polyethylene glycol diacrylate and sorbitan monooleate into the core liquid, stirring to obtain emulsion, and performing spray drying to obtain microcapsules; s3, adding microcapsules and tert-butyl peroxybenzoate into an ethyl acetate-glacial acetic acid mixed solvent, and stirring to obtain a modified solution; and S4, putting cellulose fibers into water, swelling, washing, drying, putting into the modification liquid, carrying out grafting reaction, washing and drying. According to the invention, a coupling product of hyaluronic acid and titanium dioxide is introduced to cellulose fibers in a chemical bonding manner, so that the washing-resistant stability of the skin-care moisturizing effect and the antibacterial effect is improved.

The invention discloses a bio-enzyme deodorization and bacteriostasis spray. Comprising the following components in parts by weight: 75 to 87 parts of deionized water, 1 to 3 parts of composite biological enzyme, 0.3 to 0.8 part of rosmarinic acid, 0.2 to 0.5 part of tea polyphenol, 0.5 to 1 part of honeysuckle flower extract, 0.1 to 0.3 part of dipotassium glycyrrhizinate, 0.05 to 0.1 part of low-sensitivity lavender essential oil, 0.3 to 0.6 part of polyglycerol-4 caprate, 0.2 to 0.4 part of polyoxyethylene sorbitan monooleate, 1 to 2 parts of glycerol and 0.8 to 1.5 parts of propylene glycol. The bio-enzyme deodorization and bacteriostasis spray is applied to odor dissolution. According to the bio-enzyme deodorization and bacteriostasis spray and the application, the peculiar smell of pets and the peculiar smell in the living environment of old people can be removed, meanwhile, the formula takes biodegradation peculiar smell and plant source bacteriostasis as the core, and the peculiar smell is effectively degraded through the synergistic effect of compound bio-enzyme and plant source activity; deodorization and bacteriostasis are achieved on peculiar smell of pets and the living environment of old people, plant sources are adopted as components in the formula, and secondary pollution to the environment is avoided.

The application relates to the technical field of fertilizers, and discloses a chitosan-grafted polyacrylic acid slow-release fertilizer and a preparation method thereof. The chitosan-grafted polyacrylic acid slow-release fertilizer is obtained by spray drying of a nutrient solution, a carrier dispersion liquid and a calcium chloride aqueous solution; the nutrient solution is obtained by mixing urea, potassium dihydrogen phosphate, zinc sulfate heptahydrate, iron sodium ethylenediaminetetraacetate, amino acid and deionized water; the carrier dispersion liquid is obtained by mixing a porous carrier, deionized water and polyoxyethylene sorbitan monooleate; the porous carrier is prepared from sulfonated chitosan powder, deionized water, an acrylic acid neutralizing solution, ammonium persulfate and N,N'-methylenebisacrylamide; and the sulfonated chitosan powder is prepared from formamide, chlorosulfonic acid and chitosan powder. The application can reduce the release rate of nutrients and improve the utilization rate of nutrients.

The invention discloses a fish pond cleaning agent as well as a preparation method and application thereof. The fish pond cleaning agent is prepared from 60wt%-80wt% of benzalkonium chloride, 10wt%-20wt% of polyoxyethylene sorbitan monooleate, 5wt%-10wt% of fatty alcohol-polyoxyethylene ether and 5wt%-10wt% of cocamidopropyl betaine. The preparation method is simple and convenient, the agent is used for pond cleaning treatment of shrimp and crab culture ponds, trash fishes in the ponds can be effectively removed on the premise that shrimps, crabs and aquatic plants are not damaged, pond water quality is improved and maintained, the agent is efficient and safe, and the application method is simple and convenient and environmentally friendly.

The present application relates to the technical field of washing products, and discloses a laundry detergent with mosquito-repelling function and a preparation method thereof, which comprises non-ionic surfactant, picaridin, repellent, sorbitan monooleate, hydroxypropyl methyl cellulose, anionic surfactant, deionized water and auxiliary agents, etc., by weight percentage; in the washing dilution process, with the decrease of the surfactant concentration, the sorbitan monooleate promotes the spontaneous phase separation of picaridin and repellent to form hydrophobic droplets, which are anchored and deposited on the fabric surface by the hydroxypropyl methyl cellulose; the preparation method is prepared by respectively preparing the hydrophobic premix liquid containing mosquito-repelling components and the aqueous phase matrix, and then performing critical assembly. The present application solves the problem that the mosquito-repelling components are easy to be lost with the rinsing liquid, improves the retention rate of active substances on the fabric, and effectively prolongs the mosquito-repelling time of the washed clothes.

The application discloses a sorbitan monooleate synthesis reaction system and belongs to the technical field of emulsifier production. The technical key points are as follows: a supporting box body is arranged, a processing box body is arranged in the supporting box body, the processing box body is fixedly connected with the supporting box body, a stirring mechanism is arranged in the processing box body, the stirring mechanism is used for preventing sorbitan monooleate from solidifying, the stirring mechanism comprises a first transmission assembly, a stirring assembly and a power assembly, the first transmission assembly is movably connected with the power assembly, the stirring assembly is symmetrically arranged about the first transmission assembly, the stirring assembly is fixedly connected with the first transmission assembly, a pressurizing mechanism is arranged, one end of the pressurizing mechanism is connected with the supporting box body, the pressurizing mechanism penetrates through the processing box body, the pressurizing mechanism is used for heating and warming the processing box body, and the sorbitan monooleate synthesis reaction system has the advantages that the sorbitan monooleate is prevented from solidifying.

This invention discloses a non-phosphorus ethylene cracking furnace coking inhibitor, its preparation method, and its application, applicable to the field of ethylene production technology. The inhibitor comprises the following components by weight percentage: dimethyl dithioaminodiethyl ester (7-32%), tributyl citrate (25-45%), dioctyl maleate (15-35%), pentaerythritol tetraisostearate (10-25%), sorbitan monooleate (5-20%), dioctyl adipate (3-15%), and butyl stearate (1-10%), as well as an organic solvent (a mixture of ethylene glycol ethyl ether, ethylene glycol butyl ether, propylene glycol methyl ether, isopropanol, and n-butanol), and is completely free of phosphorus. This inhibitor effectively prevents catalytic coking and inhibits gas-phase polymerization reactions through a dual mechanism of "physical shielding + chemical inhibition." Compared with existing coking suppression methods, this invention has higher coking suppression efficiency, less equipment corrosion, excellent storage stability, and environmental safety, making it suitable for various ethylene plants.

The invention mainly relates to a growth regulator for enhancing disease resistance and stress resistance of crops and a preparation method thereof, and belongs to the technical field of plant regulators. The growth regulator mainly comprises 8 to 10 g / L of carboxymethyl chitosan, 8 to 10 g / L of gamma-aminobutyric acid, 0.5 to 0.8 g / L of NaCl, 3 to 5 g / L of fulvic acid, 2 to 3 g / L of polyoxyethylene sorbitan monooleate, 6 to 10 g / L of a plant extract, 13 to 21 g / L of an accelerant and 10 to 12 g / L of a plant growth regulator. The growth regulator provided by the invention can significantly improve the defense ability of crops to bad environments such as high temperature and drought, and improve the yield and quality.

The invention discloses a method for solving a membrane surface precipitate of a wet-process diaphragm, and belongs to the technical field of battery diaphragms. The method comprises the following steps: S1, stirring and mixing a diaphragm base material, a functional additive and a high-boiling-point plasticizer, adding a composite solvent and a dispersing agent, uniformly mixing, melting, extruding, and casting to obtain a sheet; s2, the sheet in the S1 is subjected to three-stage cooling for cooling and shaping; s3, biaxially stretching the sheet treated in the S2 to obtain a thin film; and S4, carrying out solvent extraction on the film obtained in S3 through a four-temperature-zone counter-current extraction device, drying, and rolling to obtain the battery diaphragm. The composite solvent is obtained by mixing hydrogenated naphthenic oil and isoparaffin according to a mass ratio of (50-70): (30-50); polyoxyethylene sorbitan monooleate is adopted as the dispersing agent; the battery diaphragm prepared by the method for solving the precipitates on the membrane surface of the wet-process diaphragm can effectively inhibit and remove the precipitates.

The invention relates to the technical field of fine chemical engineering, in particular to a lysine modified nano titanium dioxide preparation as well as a preparation method and application thereof. The modified nano titanium dioxide preparation disclosed by the invention is prepared by mixing dry type 3-6nm titanium dioxide powder-polyoxyethylene (20) sorbitan monooleate-sorbitan monooleate aqueous dispersion with lysine and reacting under the condition that the pH value is 8-9, has long-term storage stability and can quickly, efficiently and durably purify formaldehyde and TVOC (Total Volatile Organic Compounds).