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1955 results about "Nonionic surfactant" patented technology

Waterborne epoxy resin coating as well as preparation method and application thereof

The invention discloses a water-borne epoxy resin coating which comprises a component A and a component B, the component A is prepared from 60 to 80 parts of 50 percent modified water-borne epoxy resin emulsion, 5 to 15 parts of deionized water, 0.5 to 1 part of wetting dispersant, 0.2 to 0.8 part of defoaming agent, 5 to 10 parts of modified zinc phosphate, 3 to 5 parts of ion exchange antirust pigment, 4 to 6 parts of sericite powder, 3 to 5 parts of glass flake, 5 to 10 parts of precipitated barium sulphate, 1 to 5 parts of nano silicon dioxide and 0.5 to 1 part of rheological additive; 1 to 2 parts of modified organic bentonite slurry; 0.1 to 0.3 part of a pH conditioning agent; and 0.2 to 0.8 part of a flash rust inhibitor. The component B is prepared from 40 to 50 parts of waterborne epoxy-amine adduct, 20 to 30 parts of 50 percent modified polyamide curing agent, 5 to 15 parts of 60 percent Mannich base phenolic aldehyde amine curing agent, 0.5 to 1.5 parts of epoxy silane coupling agent, 1 to 2 parts of nonionic surfactant and 15 to 20 parts of deionized water. The emulsion stability of the waterborne epoxy resin coating is improved through a bisphenol A / F mixed epoxy emulsion and a grafted polyethylene glycol hydrophilic chain segment.
Owner:HUIZHOU DADONG PAINT CO LTD

High-stability antirust emulsified cutting fluid and preparation method thereof

The invention discloses a high-stability antirust emulsified cutting fluid, which is composed of the following components by mass: 0.2-1% of a copper corrosion inhibitor, 5-10% of organic amine, 3-10% of an organic acid, 5-10% of an emulsifier, 35-45% of base oil, 1-3% of a preservative, 0.1-1% of an acidic corrosion inhibitor, 10-20% of a lubricating additive, 1-3% of a coupling agent, 0.5-2% of an antifoaming agent, and the balance of water. The emulsifier is composed of a nonionic surfactant and an anionic surfactant, and the acidic corrosion inhibitor is an imidazole compound. Compared with the existing emulsified cutting fluid, the emulsified cutting fluid has high stability in high-temperature, low-temperature, high-hardness water and slightly acidic systems, has good antirust, lubricating, cooling and cleaning performances, can effectively improve the processing efficiency, prolong the service life of equipment and improve the quality of workpieces, and is especially suitable for cutting of ferrous metals.
Owner:ZHEJIANG WATERPOWER ADVANCED MATERIALS CO LTD

Cement self-leveling anti-crack and anti-seepage mortar and preparation method thereof

PendingCN120365005ACelluloseActive agent
The invention relates to the technical field of mortar, in particular to cement self-leveling anti-crack and anti-seepage mortar and a preparation method thereof. The cement self-leveling anti-cracking and anti-seepage mortar is prepared from the following raw materials in parts by mass: 50 to 70 parts of Portland cement, 70 to 90 parts of quartz sand, 5 to 10 parts of nano metakaolin, 1 to 3 parts of calcium sulfate, 5 to 10 parts of polyethylene fiber, 1 to 2 parts of nonionic surfactant, 1 to 2 parts of silane coupling agent, 3 to 8 parts of composite basalt fiber, 0.5 to 1.5 parts of polycarboxylate superplasticizer and 1 to 3 parts of defoaming agent. 1-3 parts of hydroxypropyl methyl cellulose, 1-2 parts of a retarder and 0.5-1.5 parts of a coagulant. The mortar material has good anti-cracking performance and anti-seepage performance and excellent durability, can effectively solve the problem that the anti-cracking performance and the anti-seepage performance of the mortar material in the prior art cannot meet the environmental requirements, and is suitable for large-scale popularization and application.
Owner:SHANGHAI NAIQI BUILDING MATERIALS CO LTD

Multiple nano emulsion adjuvant and preparation method thereof

The invention relates to the technical field of pharmaceutical preparations, in particular to a multiple nano emulsion adjuvant and a preparation method thereof. The multiple nano emulsion adjuvant is prepared from 2.73 to 6.37 g of an oil phase matrix based on 100 g of a raw material system, 0.10 to 0.25 g of a sterol compound; 0.212 to 0.424 g of a nonionic surfactant; 0.00050 to 0.00200 g of a triterpenoid saponin type active adjuvant; 0.010 to 0.020 g of an anionic polymer modifier; 0.005 to 0.015 g of a cationic polymer modifier; 70-90 g of a buffer solution; the total mass of the raw materials is 100 g. The nano emulsion adjuvant prepared by the invention can be stored for 6 months at 2-8 DEG C under a low sterol condition, the particle size change does not exceed + 5%, no crystallization or layering is generated, and the stability of the active adjuvant is remarkably improved.
Owner:JIANGSU WALVAX BIOTECHNOLOGY CO LTD

Special cleaning scale inhibitor for reverse osmosis membrane and application of special cleaning scale inhibitor

The invention relates to the technical field of reverse osmosis membrane maintenance, in particular to a cleaning scale inhibitor special for a reverse osmosis membrane and application of the cleaning scale inhibitor. The cleaning scale inhibitor provided by the invention comprises an agent A, an agent B and an agent C, the agent A comprises the following components in percentage by mass: 10-20% of organic phosphonic acid, 10-20% of polycarboxylic acid polymer, 5-10% of sulfamic acid, 3-8% of sodium gluconate and the balance of water; the agent B comprises 8-15% of an isothiazolinone bactericide, 5-10% of a nonionic surfactant, 3-8% of a chlorine bactericide, 2-5% of sodium dodecyl benzene sulfonate and the balance of water; and the agent C comprises 10-20% of sodium polyacrylate, 8-15% of sodium hexametaphosphate, 5-10% of citric acid, 3-8% of silicate and the balance of water. The cleaning scale inhibitor provided by the invention has an efficient cleaning effect on various pollutants, is environment-friendly, and does not cause chemical damage to a reverse osmosis membrane.
Owner:SHANDONG MEIQUAN ENVIRONMENTAL PROTECTION TECH CO LTD +1

Reaction buffer solution for improving endotoxin detection sensitivity of recombinant tachypleus amebocyte lysate, kit containing reaction buffer solution and application of reaction buffer solution

The invention discloses a reaction buffer solution for improving endotoxin detection sensitivity of a recombinant tachypleus amebocyte lysate, a kit containing the reaction buffer solution and application of the reaction buffer solution. The reaction buffer solution comprises the following components: a Tris-HCl buffer solution, magnesium ions, sodium chloride, cane sugar, ethylene glycol diethyl ether diamine tetraacetic acid, a nonionic surfactant and cyclodextrin or a derivative thereof. The invention also discloses a preparation method of the reaction buffer solution and a kit containing the reaction buffer solution. When the reaction buffer solution or the kit is used for detecting the endotoxin of the recombinant tachypleus amebocyte lysate, the sensitivity of the recombinant tachypleus amebocyte lysate for detecting the endotoxin can be improved by one order of magnitude, the lowest detection limit can reach 0.0005 EU / ml, the reaction buffer solution or the kit has strong anti-interference capability and short reaction time, and the detection efficiency is greatly improved.
Owner:BEIJING TRANSGEN BIOTECH CO LTD

Water-soluble unit dose article comprising a first alkoxylated alcohol non-ionic surfactant and a second alkoxylated alcohol non-ionic surfactant

A water-soluble unit dose article containing a non-soap anionic surfactant and non-ionic surfactant, where the non-ionic surfactant includes first and second alkoxylated alcohol non-ionic surfactants. A related process of laundering fabrics.
Owner:PROCTER & GAMBLE CO

Subcutaneous anti-HER2 antibody formulations and uses thereof

The present invention relates to a highly concentrated, stable pharmaceutical formulation of a pharmaceutically active anti-HER2 antibody, such as e.g. Trastuzumab (HERCEPTIN™), Pertuzumab or T-DM1, or a mixture of such antibody molecules for subcutaneous injection. In particular, the present invention relates to formulations comprising, in addition to a suitable amount of the anti-HER2 antibody, an effective amount of at least one hyaluronidase enzyme as a combined formulation or for use in form of a co-formulation. The formulations comprise additionally at least one buffering agent, such as e.g. a histidine buffer, a stabilizer or a mixture of two or more stabilizers (e.g. a saccharide, such as e.g. α,α-trehalose dihydrate or sucrose, and optionally methionine as a second stabilizer), a nonionic surfactant and an effective amount of at least one hyaluronidase enzyme. Methods for preparing such formulations and their uses thereof are also provided.
Owner:GENENTECH INC

Preparation method and application of an ordered mesoporous-microporous carbon composite material

The present application provides a preparation method and application of an ordered mesoporous-microporous carbon composite material. The preparation method includes: (1) infiltrating a foaming material into a mixed solution containing phenolic resin, a silicon source, and a nonionic surfactant, and drying to obtain a first matrix; (2) mixing the first matrix with a phosphate compound and reacting to obtain a second matrix; (3) calcining the second matrix under an inert gas to obtain a third matrix; (4) reacting the third matrix with a hydrofluoric acid-containing solution to generate an ordered mesoporous-microporous carbon composite material. The ordered mesoporous-microporous carbon composite material prepared in the present application is corrosion-resistant, has a large specific surface area, a high porosity, good adsorption performance, and a low cost, and has excellent mechanical stability and chemical stability, and can adsorb, separate, and rapidly desorb organic pollutants in high-concentration wastewater.
Owner:BEIJING ZHONGLI XINDA ENVIRONMENTAL TECH CO LTD

Viscosity-controllable and low-toxicity polysaccharide-based antibacterial detergent and preparation method thereof

The invention provides a viscosity-controllable and low-toxicity polysaccharide-based antibacterial detergent and a preparation method thereof, and belongs to the technical field of daily chemical sterilization. The detergent comprises the following raw materials in percentage by mass: 0.5-6% of a polysaccharide thickener, 10% of a bacteriostatic agent, 10% of a glycoside nonionic surfactant and the balance of water, the polysaccharide thickening agent is a mixture of chitosan, chitosan hydrochloride and quaternized chitosan. The polysaccharide is applied to viscosity regulation and control of a surfactant system without a petroleum-based thickening agent for the first time, application of the polysaccharide in the field of daily chemical washing is expanded, and compared with other antibacterial hand sanitizer competitive products containing benzene rings and phenol bacteriostatic agents and 6501 thickening agents, the antibacterial hand sanitizer competitive products have the remarkable advantages of high biocompatibility, high antibacterial property, easiness in degradability and the like.
Owner:GUANGDONG RUILIQI BIOTECHNOLOGY CO LTD

Biodegradable environment-friendly cleaning agent

The invention relates to the technical field of cleaning agents, and discloses a biodegradable environment-friendly cleaning agent, which comprises: a composite surfactant system comprising at least one nonionic surfactant, an ampholytic surfactant and a chelating functional surfactant; the plant extract oil system comprises limonene and a eucalyptus oil mixture; the functional particle system comprises nanoscale enzyme microcapsules and slow-release type oxidized particles; the natural polysaccharide stable network system comprises at least two polysaccharide thickeners and a bio-based cross-linking agent, and the assistant system comprises a metal ion chelating agent, a buffer acid system and water. By introducing sodium polyaspartate as a green chelating surfactant, efficient chelating of calcium and magnesium ions under a hard water condition is realized, the cleaning power is remarkably improved, water stain residues are reduced, and the cleaning performance with wider adaptability is obtained.
Owner:SHANGHAI SHUNAO ENVIROMENTAL TECH CO LTD

Method for preparing high-purity yeast β-glucan

PCT designated stageWO2025195115A1AmylaseHydrolysate
A method for preparing a high-purity yeast β-glucan, comprising the following steps: treating a yeast cell wall mixed liquid by adding amylase at a certain temperature, then adjusting the pH, and treating the mixed liquid by adding lipase at a certain temperature; adding an alkali and a nonionic surfactant, carrying out heating and thermal insulation treatment, and cooling to obtain an alkali-treated liquid; washing and separating the alkali-treated liquid, adding water to a precipitate, then adding an acid to adjust the pH to 3-5, carrying out heating and thermal insulation treatment to obtain an acid-treated liquid, and performing separation, washing, and drying on the acid-treated liquid to obtain a yeast β-glucan product; and subjecting the yeast β-glucan to a combined action of a mixed enzyme preparation and ultrasound to obtain an enzymatic hydrolysate, and performing separation treatment on the enzymatic hydrolysate to obtain an insoluble yeast β-glucan and a water-soluble yeast β-glucan, respectively. In the present invention, a high-purity yeast β-glucan product having a content of 90% or more and a water-soluble yeast β-glucan product with biological activity can be prepared, the preparation method is simple, large-scale production can be achieved, and the quality and additional value of the product can be improved.
Owner:HONNETE & RIGHT BIO-TECH LTD

Acid pickling additive, using method, monocrystalline silicon wafer and solar cell

The invention provides a pickling additive, a use method, a monocrystalline silicon wafer and a solar cell. The pickling additive comprises the following components in parts by weight: 1-5 parts of organic acid, 0.1-0.5 part of a nonionic surfactant, 0.2-2 parts of a corrosion inhibitor, 1-5 parts of a chelating agent, 5-20 parts of an accelerator, 3-5 parts of an oxidant, 1-5 parts of a solvent and 60-80 parts of deionized water. Wherein the mass ratio of the accelerator to the oxidant is (1.5-5): 1; the solvent dielectric constant is greater than or equal to 30. By adopting the acid pickling additive disclosed by the invention, the dosage of HF can be reduced, impurities on the surface of a silicon wafer can be effectively cleaned in a wet process HF tank, the surface of the silicon wafer cannot be damaged, the physical and chemical properties of the silicon wafer cannot be influenced, and residues of organic matters and metal ions on the surface of the silicon wafer can be reduced; and adverse effects of impurities on subsequent processes of battery production are reduced, so that the yield and efficiency of solar battery production are improved.
Owner:CHANGZHOU SHICHUANG ENERGY CO LTD

Temperature-resistant and salt-resistant nanofluid oil-displacing agent as well as preparation and application thereof

The invention relates to an oil field auxiliary agent, and particularly discloses a temperature-resistant salt-resistant nano fluid oil displacement agent and preparation and application thereof, the temperature-resistant salt-resistant nano fluid oil displacement agent comprises the following components by weight: 5-12 parts of modified nano SiO2 particles, 10-20 parts of a nonionic surfactant, 10-30 parts of a gemini benzoxazine surfactant, 1-5 parts of a dispersant, 10-20 parts of a mutual solvent, and 20-50 parts of water; wherein the modified nano SiO2 particles are obtained by modifying nano SiO2 particles through a macromolecular coupling agent. The nano-fluid oil-displacing agent has the beneficial effects that the recovery efficiency can be improved when the nano-fluid oil-displacing agent is used for exploiting a high-temperature and high-salt oil reservoir, and the nano-fluid oil-displacing agent is good in temperature resistance and salt resistance, small in particle size and capable of remarkably reducing the oil-water interfacial tension.
Owner:CHENGDU OMAX OILFIELD TECH CO LTD

A non-ionic fine water mist fire extinguishing agent for suppressing thermal runaway, its preparation method and application

The present invention relates to the technical field of fire extinguishing agents for lithium-ion batteries, and particularly to a non-ionic fine water mist heat runaway suppression fire extinguishing agent and its preparation method and application. The non-ionic fine water mist fire extinguishing agent comprises the following components in mass percentages: 5.0-15% of non-ionic surfactant, 0.3-0.5% of modified nanoparticles, 2.5-4.0% of bio-based thickener, 0.5-1.5% of flavonoid compounds, 15%-20% of organic solvent, and the balance being deionized water. The fine water mist fire extinguishing agent provided by the present invention uses a non-ionic surfactant, which can significantly reduce the surface tension of water, enabling the fine water mist to better wet the surface of the combustible, and adding modified nanoparticles, flavonoid compounds and bio-based thickener therein, achieving excellent flame retardancy and wettability, improving the overall performance of the fine water mist fire extinguishing agent, and the fire extinguishing agent composition contains neither inorganic salts nor fluorine, being green and environmentally friendly with high fire extinguishing efficiency.
Owner:ANHUI UNIV OF SCI & TECH

Efficient and environment-friendly paint remover and preparation method and paint removing method thereof

PendingCN120365785AChemical paints/ink removersDiethylene glycol monobutyl etherEthyleneglycol monobutyl ether
The invention belongs to the technical field of paint removers, and discloses a high-efficiency and environment-friendly paint remover as well as a preparation method and a paint removal method thereof. The paint remover comprises a main solvent, a cosolvent, a surfactant and a thickening agent, the main solvent comprises diethylene glycol monobutyl ether, the cosolvent comprises glycerol and propylene glycol carbonate, the surfactant comprises an anionic surfactant and a nonionic surfactant, and the thickening agent comprises an anionic surfactant and a nonionic surfactant. The non-ionic surface active agent comprises sorbitan fatty acid ester and an organic silicon surface active agent, and the thickening agent comprises xanthan gum and a nanometer aluminum oxide solution. The paint remover does not contain dichloromethane, is low in toxicity and environment-friendly, can quickly swell and strip high polymer molecules of a paint film, thoroughly destroy the adhesive force of the paint film to a substrate and remove the paint film through selective and matched use of specific components, does not cause any corrosion and adverse effect on an aluminum alloy substrate, and is suitable for industrial production. Residues of the depainted base material can be quickly cleaned away, and the phenomena of blackening or whitening and the like are avoided.
Owner:FOSHAN HAIHUA SURFACE TREATMENT TECH CO LTD

Cleaning composition, preparation method and cleaning sheet

The invention discloses a cleaning composition, a preparation method and a cleaning sheet, and belongs to the field of cleaning products. The cleaning composition is prepared from the following raw materials in parts by mass: 10-30 parts of an amino acid surfactant; 1 to 20 parts of an anionic surfactant; 15 to 45 parts of plant polysaccharide; 5 to 15 parts of a shape promoting agent; 1 to 10 parts of a nonionic surfactant; 0.5 to 5 parts of an ampholytic surfactant; 0.5 to 5 parts of a plant extract; 0.5 to 5 parts of a humectant; 0.1 to 5 parts of a chelating agent; 0-5 parts of essence; an enzyme preparation; 0 to 5 parts; and 20 to 105 parts of water. The washing and protecting sheet has the characteristics of low sensitivity and mildness, can be in direct contact with skin, is moderate in dissolving speed and cleaning power, and can be applied to the fields of hair washing, bathing, face cleaning, hand washing, underwear cleaning, maternal and infant fabric cleaning, toy cleaning and the like.
Owner:GUANGZHOU JOYSON CLEANING PROD CO LTD

Catalyst carrier as well as preparation method and application thereof

The invention discloses a catalyst carrier and a preparation method and application thereof, and belongs to the technical field of catalyst carriers, the preparation method comprises the following steps: mixing alumina sol with a composite template agent, tin chloride and silica sol to obtain slurry; preparing carrier wet balls from the slurry, drying and roasting to obtain the catalyst carrier; the composite template agent comprises a surfactant and organic amine, the surfactant is a zwitterionic surfactant and a nonionic surfactant, and the organic amine is hexamethylenetetramine; the mass ratio of the surfactant to the organic amine is 1: (10-20); the mass ratio of the zwitterionic surfactant to the nonionic surfactant is 1: (1-2). According to the invention, the crushing strength reaches 71N / particle to 80N / particle, the specific surface area reaches 138 m < 2 > / g to 165 m < 2 > / g, the performance of the alumina catalytic carrier is greatly improved, and technical support is provided for long-term efficient and stable operation of a catalyst.
Owner:DALIAN KANGTALE FINE CHEM RES CO LTD

Salicylic acid composition as well as preparation method and application thereof

The invention provides a salicylic acid composition as well as a preparation method and application thereof. The salicylic acid composition comprises the following components in percentage by weight: 0.5-2% of salicylic acid; 1-10% of an oil phase component; 2-8% of a polyol co-emulsifier; 2.4%-5% of a nonionic surfactant; and the balance of purified water. Compared with the prior art, the salicylic acid composition has the beneficial effects that the salicylic acid is dissolved in the specific grease preferably, and the emulsifier and the polyol co-emulsifier which are suitable for preparing the stable emulsion are screened out, so that compared with the existing water-soluble salicylic acid system, the salicylic acid composition disclosed by the invention is dissolved in the specific grease, and the stability of the stable emulsion is improved. The property that salicylic acid does not ionize H < + > in grease is utilized, the irritation problem caused by salicylic acid is reduced, and meanwhile it is guaranteed that salicylic acid still exists in a molecular form (not separated out) in a system under the condition that the pH value is low (2.0-4.5).
Owner:SHANGHAI HUARUI WANMEI BIOTECHNOLOGY CO LTD +1

Full-bio-based PHA (polyhydroxyalkanoate) liquid bioplastic emulsion and preparation method thereof

The invention discloses a full bio-based PHA (polyhydroxyalkanoate) liquid bioplastic emulsion and a preparation method thereof. The emulsion takes polyhydroxyalkanoate (PHA) as a matrix, alkyl polyglycoside, fermented glycolipid and a bio-based nonionic surfactant are compounded with pullulan, alginate or micro-nano cellulose to serve as a stable system, and plasticizers such as acetyl tributyl citrate and citric acid, phytic acid or tannic acid are added to serve as compacting agents. The solid content of the emulsion is 35-58%, the volume average particle size D50 is 0.12-0.90 [mu] m, the absolute value of Zeta potential is not less than 30 mV, and the content of volatile organic compounds (VOC) is not higher than 50 g / L; fluorine-containing organic matters are not artificially added, and the total organic fluorine is less than or equal to 100ppm. The overall bio-based carbon content of all organic components in the formula is not lower than 95% according to mass weighting calculation. The invention also provides application of the emulsion in the fields of paper barrier coatings, heat-sealing adhesives and non-woven fabric finishing.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +2

DNA (deoxyribonucleic acid) silver nano-cluster as well as preparation method and application thereof

The invention discloses a DNA silver nanocluster and a preparation method and application thereof, and belongs to the technical field of analytical chemistry. The method comprises the following steps: adding a template containing a DNA sequence and an AgNO3 solution into a PBS (Phosphate Buffer Solution), mixing, and carrying out a first dark reaction; then, adding a NaBH4 solution, and carrying out a second light-shielding reaction, so as to obtain the DNA-Ag NCs fluorescent probe; the DNA silver nano-cluster is applied to the determination of the cationic surface active agent; the fluorescence quenching effect is remarkable, the lowest detection limit can reach 2.0 mu M, the selectivity is good, common anionic surfactants, nonionic surfactants, metal ions in sewage and other interferents do not affect detection, and the accuracy and reliability of the method are improved.
Owner:JINZHONG UNIV

Collagen nano polymer particle and preparation method thereof

The invention discloses a preparation method of collagen nano polymer particles, which comprises the following steps: carrying out surface hydrolysis on organized collagen to prepare a microsphere base material; the preparation method comprises the following steps: uniformly mixing a microsphere base material, a target load, a nonionic surfactant and polyol ester in proportion to prepare a microsphere modified base material; and uniformly mixing the microsphere modified base material, an ether compound and a chemical auxiliary agent according to a ratio to prepare collagen microspheres, namely the collagen nano polymer particles. The preparation method comprises the following steps: firstly, reducing the volume of collagen through enzyme hydrolysis, reducing biological stimulation possibly caused by drug loading, and strengthening the drug loading property of the collagen nano polymer; and secondly, a polymer crystal region appears in the carrier protein in an aqueous solution by utilizing subsequent surface modification, so that the drug carrier can control the release progress of the loaded drug, and the drug carrier can permeate into deep tissues through the surface layer of the skin.
Owner:SHANGHAI JUYI COSMETICS CO LTD

Marker composition

A marker composition for application to a medical device or a surface is disclosed. The marker composition comprises a carrier composition including water, nonionic surfactant, organic solvent, and a neutral or anionic viscosity modifier. The marker composition further comprises a dyestuff. In some embodiments, the quantity of dyestuff present is such that at least some of the dyestuff is present as a dispersed solid phase. The dyestuff may be a naturally-derived dyestuff, such as spirulina extract (including phycocyanin). The invention extends to a carrier composition for a dyestuff.
Owner:TRISTEL PCL

Composite surfactant for oil displacement of high-salinity oil reservoir and preparation method of composite surfactant

PendingCN121343579ADrilling compositionAconitic acidActive agent
The invention provides a composite surfactant for oil displacement of a hypersalinity oil reservoir and a preparation method of the composite surfactant, and relates to the technical field of petrochemical engineering. The composite surfactant is prepared from the following components in percentage by weight: 0.1 to 0.3 percent of anionic-nonionic surfactant, 0.01 to 0.03 percent of cationic surfactant and the balance of formation water, wherein the anionic-nonionic surfactant is prepared by the following steps: reacting a hydroxyl-containing compound with ethylene oxide to obtain polyoxyethylene ether, then carrying out esterification modification by using aconitic acid modified rosin, then sulfonating by using a sulfonating agent, and finally neutralizing. The composite surfactant shows relatively low interfacial tension under the condition of hypersalinity (50000-200000 mg / L), is high in stability, and can be used for improving the recovery efficiency of hypersalinity oil reservoirs.
Owner:SHANDONG PETROCHEMICAL INST

Powerful heavy oil stain cleaning agent and preparation method thereof

The invention provides a powerful heavy oil stain cleaning agent and a preparation method thereof, and belongs to the technical field of cleaning agents. The cleaning agent is prepared from the following components in percentage by mass: 70 to 90 percent of water, 0.2 to 1.0 percent of tetrasodium glutamate diacetate, 0.2 to 1.0 percent of coconut alkyl quaternary amine ethoxylate, 1.0 to 3.0 percent of C9-11 fatty alcohol-polyoxyethylene ether, 1.0 to 5.0 percent of fatty ether nonionic surfactant, 1.0 to 8.0 percent of polyol solvent, 1.0 to 5.0 percent of monoethanolamine, 0.5 to 2.0 percent of sodium hydroxide and 0.1 to 0.3 percent of essence. The powerful heavy oil stain cleaning agent is good in cleaning effect, small in damage to cleaned objects and good in environmental protection performance.
Owner:CHENGDU RAINBOW DAILY CHEM CO LTD

Vision-based surfactant foam amount prediction method and system

The invention relates to the technical field of image recognition and foam detection, and discloses a surfactant foam amount prediction method and system based on vision, and the method comprises the steps: collecting a foam image, carrying out the region extraction through the combination of guided filtering and a self-adaptive threshold value, extracting a small foam structure feature vector through employing Euclidean distance transformation and a watershed algorithm, and carrying out the prediction of the foam amount of a surfactant. And constructing a foam quantity prediction model, and outputting a foam quantity result. In the prior art, a method based on area statistics or connected domain identification is low in identification precision under a high-density small bubble scene, and especially under the conditions that the boundary of a foam region is fuzzy and small bubbles are seriously adhered, accurate bubble diameter extraction is difficult to realize. Due to the fact that guided filtering enhancement, a watershed segmentation method and image and structure double-branch prediction are introduced, accurate segmentation of a dense small bubble area and prediction of the foam amount are achieved, and the accuracy and adaptability of foam amount prediction in a non-ionic surfactant complex foam scene are improved.
Owner:XUZHOU HUAYUN FINE CHEM CO LTD

Nano-scale reverse micelle oil capable of promoting permeation, realizing targeted delivery and enhancing vitriol and preparation method of nano-scale reverse micelle oil

The invention relates to nano-scale reverse micelle oil capable of promoting permeation, realizing targeted delivery and enhancing vitriol and a preparation method of the nano-scale reverse micelle oil. The nano-scale reverse micelle oil comprises a boro, a nonionic surfactant, short-chain alcohol, long-chain alcohol and grease. The preparation method comprises the following steps: mixing and stirring the glassine, the short-chain alcohol and the long-chain alcohol, then adding the nonionic surfactant, continuously stirring, and finally adding the grease and stirring to obtain the nano-scale reverse micelle oil. The nanoscale reverse micelle oil is clear and transparent in appearance, the average particle size is smaller than 300 nm, and the nanoscale reverse micelle oil has good stability; a good permeation promoting effect is achieved, and the transdermal absorption amount of the glassine can be greatly improved. The bose oil can be added into a pure oil system, and the application field of bose oil is expanded.
Owner:SHANGHAI FOREST CABIN BIOLOGICAL-TECH CO LTD

Sprayable compositions containing oil-in-water emulsions containing submicron hydrophobic agents and methods of use thereof

Described are sprayable compositions containing oil-in-water emulsions. The emulsions contain (i) submicron particles of one or more hydrophobic agent(s), (ii) an emulsifier system comprising one or more nonionic surfactant(s) or emulsifier(s), and (iii) an aqueous-solute fluid. The submicron particles of one or more hydrophobic agent(s) are present in an amount from about 0.01% wt. to about 70% wt., the one or more nonionic surfactant(s) or emulsifier(s) are present in an amount from about 0.01% wt. to about 10% wt., and the aqueous-solute fluid is present in an amount from about 1.0% wt. to about 98.5% wt., all based on the total weight of the sprayable composition. The submicron particles of one or more hydrophobic agent(s) (i) have an average particle size from about 100 nm to less than about 1000 nm, (ii) have a solubility of less than about 0.1% by weight in water under standard conditions, and (iii) are 85% or more of a size within ±2.0 standard deviations, of the average particle size. The one or more nonionic surfactant(s) or emulsifier(s) comprise ester(s) of one or more fatty acid moieties with one or more hydroxyl groups of glycerol or polyglycerol having a HLB from about 3 to about 20, based on the degree of glyceryl units or ethoxyl units, or combinations thereof; and optionally ester(s) of one or more fatty acid moieties with one or more hydroxyl groups of sucrose having a HLB from about 2 to about 18, based on the degree of glyceryl units or ethoxyl units, or combinations thereof. The one or more nonionic surfactant(s) or emulsifier(s) are sufficient to stabilize the submicron particles of one or more hydrophobic agent(s) in the emulsion, at a level from about 0.05% w / w to about 70% w / w of said one or more hydrophobic agent(s), in the emulsion. Also described are processes of making the emulsions, and methods of use of the emulsions. The emulsions are useful, for example, in nutritional, pharmaceutical, biomedical, over-the-counter (OTC) drug, cosmetic, food, personal care, animal care, veterinary health, household, pet care, and other applications.
Owner:TCI BUYER LLC

Detergent composition for automatic dishwashers

A detergent composition for automatic dishwashers and a method for washing tableware is described. The detergent composition contains component (a): an inorganic reducing agent with an oxidation-reduction potential of +71 mV or less; and component (b): a nonionic surfactant; and water. A mass ratio of the component (a) to the component (b), (a) / (b), is 0.3 to 4.5, and a pH of the detergent composition at 25° C. is 6 to 11. The detergent composition is effective for washing complex soil containing animal protein and lipid and containing vegetable liquid oil even if a liquid property is in the region of neutrality to weak alkalinity.
Owner:KAO CORP

Method and device for preparing large-size microspheres with uniform particle size and regular shape

The invention discloses a method and a device for preparing large-size microspheres with uniform particle size and regular morphology, and relates to the technical field of emulsion preparation, the method comprises the following steps: preparing a double-emulsion microsphere material containing an inner phase, an intermediate phase and an outer phase, the inner phase comprising an aqueous solution containing active components and a hydrophilic polymer surfactant, and the intermediate phase having a melting point of 50 DEG C lt; t fusion lt; an oil phase with the temperature of 85 DEG C and a lipophilic nonionic surfactant are adopted, an outer phase is a water phase solution, or a single emulsion microsphere material is prepared; then introducing the material into a micro-fluidic chip for molding, wherein the microsphere molding temperature is Tmelt + (10-15) DEG C; the formed microspheres are subjected to gradient cooling curing in a liquid outlet pipe or the formed microspheres are directly dropped into receiving liquid to be received and cured, and the temperature of the receiving liquid is (Tfu-30)-(Tfu-5) DEG C; according to the preparation method disclosed by the invention, the microspheres are formed stably, the probability that the microspheres receive demulsification and abnormal shapes is small, and the prepared large-size microspheres are uniform in particle size and regular in shape.
Owner:SICHUAN MICROFLUIDIC TECH CO LTD