202 results about "Ethylene glycol bis" patented technology

The invention discloses high-voltage electrolyte and a lithium ion battery using the electrolyte. The invention is realized by the following technical scheme: the high-voltage electrolyte comprises a non-aqueous solvent, lithium salt and an additive, wherein the non-aqueous solvent is a carboxylic ester compound which accounts for 1-40% by mass of the high-voltage electrolyte; the additive is any one or more of lithium bis(oxalate)borate (Li BOB), fluoroethylene carbonate (FEC) and ethylene glycol bis(propionitrile) ether. The high-voltage electrolyte contains carboxylic ester solvents capable of improving an electrode / electrolyte interface, and through optimized combination of the carboxylic ester solvents, Li BOB, FEC, ethylene glycol bis(propionitrile) ether and other various additives, the good cycle performance of a high-voltage battery can be ensured, meanwhile, the high-temperature storage performance of the high-voltage battery can be effectively improved, and gas generation of the battery under high-voltage high-temperature storage condition can be obviously inhibited.

The invention discloses a method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate. The method comprises the following steps of: combining maleic anhydride and two hydroxyl radicals on ethylene glycol to perform mono-esterification to obtain ethylene glycol bis(monomaleate); performing di-esterification on the ethylene glycol bis(monomaleate) and 2-ethyl-1-butanol to obtain ethylene glycol bis(2-ethyl-1-butyl) dimaleate; and performing conjugate addition on the ethylene glycol bis(2-ethyl-1-butyl) dimaleate and sodium hydrogensulfite to obtain the product, wherein whenthe maleic anhydride is reacted with the ethylene glycol, a carbon-based solid acid catalyst is adopted. The method is simple, and easy to implement; the consumption of raw materials is reduced; the cost is saved, and impurities of the product are reduced.

The invention discloses a light-cured three dimensional printing material and a preparation method thereof. The light-cured three dimensional printing material comprises, by mass, 40-45 parts of polyester modified epoxy acrylate, 8-12 parts of cycloaliphatic epoxy resin, 8-10 parts of trihydroxymethylpropyl trimethylacrylate, 16-20 parts of 1,6-hexanediol diacrylate, 2-8 parts of triethyleneglycol divinyl ether, 1.5-2 parts of isopropylthioxanthone, 1.5-2 parts of 2-phenyl-2,2-dimethylamino-1-(4-morpholinylphenyl)-1-butanone, 1.5-2 parts of a reactive tertiary amine co-initiator, 0.5-2.7 parts of 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate, 0.5-2 parts of an anthraquinone derivative, 0.5-2 parts of a promoter and 4-8 parts of a flexibilizer. Shaped parts made by using the light-cured three dimensional printing material have the advantages of low shrinkage, high toughness and high shaping precision.

The invention discloses a high-pressure reciprocating sealing gasket for a pump valve and a preparation method thereof. The sealing gasket is prepared from the following raw materials in parts by weight: 70-90 of nitrile butadiene rubber, 20-30 of ethylene-propylene-diene monomer, 15-25 of 3# smoke sheet rubber, 10-15 of SG-3 type PVC resin, 1-2 of sulfur, 0.5-1 of 1,4-bis(1-(tert-butylperoxy)-1-methylethyl)-benzene, 1-2 of zinc oxide, 1-2 of stearic acid, 15-20 of modified nano-diamond, 5-10 of an iron tailings powder, 1-2 of an anti-aging agent MBZ, 2-3 of an anti-aging agent RD, 2-3 of Rhine wax, 3-4 of vaseline, 12-18 of fast extruding furnace black N660, 8-12 of di(ethylene glycol) dibenzoate, 5-10 of aluminum hydroxide, 1-2 of an accelerant TMTD, and 1-2 of an accelerant NA-22. The sealing gasket has high impact resistance, high compressive strength, tear resistance and small compression permanent deformation, has the using pressure which is increased by 3-4 times as compared with that of a traditional sealing gasket, can work under a high-pressure high-speed condition for a long time, is reliable in sealing, and enables the service life of the sealing gasket to be improved.

The invention discloses an amino acid cleansing cream and a preparation method thereof. The amino acid cleansing cream comprises the following components in percent by weight: 3-8 percent of glycerol, 0.05-0.2 percent of hydroxyethylcellulose, 5-13 percent of propylene glycol, 25-30 percent of sodium lauroyl glutamate, 5-8 percent of sodium cocoyl glutamate, 0.5-1.5 percent of ethal-octadeca-composite fatty alcohol, 0-2 percent of ethylene glycol distearate, 0.2-0.6 percent of cetearyl alcohol ether (20), 0.5-1.5 percent of cocoaminopropyl dimethyl betaine, 0.5-1.5 percent of cetearyl alcoholether-60 myristyl glycol, 1-3 percent of acrylate / polyoxyethylene-20 stearin alcohol ether methacrylate copolymer, 0.4-0.8 percent of citric acid, 0.1-0.2 percent of diazolidiny urea, 0.10-0.15 percent of methyl phydroxybenzoate and the balance of deionized water. the amino acid cleansing cream has better stability and solid content of sodium lauroyl glutamate of more than or equal to 25 percent,and can create a comfortable and clear microenvironment for healthy growth and metabolism for skin cells on the face.

The invention provides a preparation method and application of a composition for decomposing low-molecular aldehyde without illumination. The composition mainly comprises chitin, EDTA, carbohydrazide, glycerin, polyethylene glycol, dicyandiamide, sodium phytate, phytic acid, glucoside, sodium sulfanilate, mannitol, citric acid, sodium thiosulfate, modified starch, cellulose, gelatine powder, aluminum oxide, silica, diatomite and kaolin. The composition can be used for removing formaldehyde, acetaldehyde and other low-molecular aldehyde and harmful small polar molecules in gas-liquid-solid phase substances. The composition can be used for removing residual formaldehyde in decorative materials in buildings, and an aqueous solution and the gas state of the composition can be used for decomposing formaldehyde in the liquid phase and the gas phase. Solid of the composition can be added into materials such as indoor building materials, wallpaper glue, diatom ooze, seashell ooze, silicon balls, diatom balls, interior wall coating materials and water-based paint. According to a decomposing function of the composition, one part of the composition with the components can decompose 2 parts of formaldehyde solutions (40%), salt and water are generated, secondary pollution is avoided, illumination is of no need, and the formaldehyde decomposition rate can reach 99.7% or over.

The invention provides mild cleansing and moisture preservation amino acid skin activating and face cleansing milk and a preparation method thereof, and relates to the field of face cleansing milk. The face cleansing milk is prepared from 26.59 to 78.4 parts of group B raw materials; the group B raw materials is prepared from the following ingredients in parts by weight: 0.5 to 4.5 parts of sodiumlauroyl glutamate, 0.8 to 5.5 parts of oleoyl sodium glycinate, 20 to 47.8 parts of surfactants, 3 to 8 parts of potassium cocoyl glycinate solution, 1.2 to 6 parts of sodium taurine laurate, 0.5 to3 parts of glycol distearate, 0.5 to 3 parts of moisturizing foaming agents, 0.01 to 0.3 part of lauryl sulfosuccinate disodium and 0.08 to 0.3 part of p-hydroxyacetophenone. The face cleansing milk provided by the invention belongs to amino acid type face cleansing milk with the advantages of mild effect, strong cleaning power, high water solubility, excellent foaming performance and elastic andstable foam. The invention also provides a preparation method of the mild cleansing and moisture preservation amino acid face cleansing milk. The preparation method has the advantages that the processis simple; the operation is easy; the amino acid type face cleansing milk with high stability can be produced.

The invention discloses a DLO Hi-C (Digestion-Ligation-Only Hi-C) chromosome conformation capture method. The technology (the method) can overcome a series of shortcomings in a conventional chromosome conformation capture technology (Hi-C) which is loud in noise, high in cost, complex in experimental process, low in success rate, high in data analysis difficulty and the like, and the technology can conduct experiments just by simple ligation and digestion. The method provided by the invention has the following innovation points: 1) by conducting double cross-linking on target cells by virtue of EGS (ethylene glycol bis(succinimidyl succinate)) and a formaldehyde, the occurrence of decrosslinking in a later experimental process is prevented; 2) the application of biotin labeling is avoided in an experimental process, so that cost is reduced to a great extent; 3) a short time is consumed, and a library can be constructed within two and a half days just by simple ligation and digestion steps; 4) data noise is reduced, target gene interaction fragments are selectively recovered according to the sizes of the fragments by virtue of a page gel, and basically all data, obtained from sequencing is valid data; and 5) a library quality assessment standard is proposed for the first time, so that the quality of the library can be judged before conducting high throughput sequencing.

The present invention relates to a washing liquor and its preparation method, in particular, it relates to a washing concentrate and its preparation method. Said washing concetnrate is formed from the following raw material: (by wt%) 38.5-54.6% of fatty alcohol polyoxyethylene ether sulfate and lauryl sulfate, 0% or 3-6% of ethylene glycol distearate, 0-9% of coco alkanolamide, 0-7% of coco amide propylbetaine, 0-4% of dodecyl dimethyl amine oxide, 0-3% of inorganic salt, 0-1% of acidifying agent, 0-0.5% of preservative, 0-30% of water and impurity. Said invention also provides the concrete steps of its preparation method.

The invention discloses an easy-to-operate, high yield preparation process for ethylene glycol di-aromatic ether suitable for industrialized production which comprises the steps of, charging substituted phenol and queous alkali into reactor for stirring reaction, filling excess dichloroethane and phase transition catalyst, carrying out inverse flow reaction at 70-100 deg. C, the reacting time being 15-35 hours, concentrating water at 95-130 deg. C, thus completing the reaction, watering so as to dissolve inorganic salt completely, abandoning the water layer, recrystallizing the residue.

The invention discloses an electrolyte for a high-voltage lithium ion battery and the high-voltage lithium ion battery. Additives of the electrolyte comprise ethylene glycol bis(propionitrile) ether and cyclic anhydride containing unsaturated double bonds; the electrolyte is used for the lithium ion battery, and can enable the lithium ion battery to maintain good cycle performance and high-temperature storage characteristic at high voltage.

A method of synthesizing glycol diester by reacting a linear aliphatic carboxylic acid and a glycol monoester in the presence of a Lewis acid type catalyst is provided. In the method, after introducing the glycol monoester, the linear aliphatic carboxylic acid and the Lewis acid type catalyst into a reactor, the reaction occurs to produce reaction products and water in the reactor; an excess of the linear aliphatic carboxylic acid forms an azeotrope with water during the reaction to be sent to a condenser through a distillation column; the linear aliphatic carboxylic acid and water passed through the condenser are divided into an organic layer and an aqueous layer in an oil water separator; and the organic layer is returned to the distillation column through a material cycling line and water in the aqueous layer is removed through a water removal line. By utilizing reactive distillation technique, water produced during the reaction is rapidly removed, and thus the reaction time can be significantly reduced and the yield of the glycol diester can be maximized.

The invention relates to an efficiently-solubilizing anionic Gemini surfactant used for chlorinated hydrocarbon pollutants and a synthesis method of the efficiently-solubilizing anionic Gemini surfactant used for the chlorinated hydrocarbon pollutants. After being dissolved in water, the synthesized ethylene glycol di-maleic acid 1-decanol diester sulfonate Gemini surfactant (GS-10) forms electronegative micelle under a condition of a concentration higher than a critical micelle concentration, and hydrophobic chlorinated hydrocarbons, such as TCE and PCE, enter the micelle to increase the apparent solubility of the pollutants in the water. The efficiently-solubilizing anionic Gemini surfactant used for the chlorinated hydrocarbon pollutants can be preferably used for an underground water surfactant in-situ flushing technology to remove residual chlorinated hydrocarbon pollutants in aquifers, and has wide application.

The invention relates to a dialkyl ether disulfonate surfactant used for tertiary oil recovery and heavy oil viscosity reduction and a preparation method thereof. The dialkyl ether disulfonate surfactant can improve the surface activity and reduce the critical micelle concentration. According to the technical scheme, the ialkyl ether disulfonate surfactant is 1,2-bis(2-oxygen propane sodium sulfonate-3-alkyl ether-propyl) glycol ether with the code of TTSS-2-n. The preparation method of the dialkyl ether disulfonate surfactant comprises the following steps: adding ethylene glycol, boron trifluoride ethyl ether and epichlorohydrin for reaction of 6-12h, and adding ethanol solution of NaOH for reaction of 6-9h to obtain ethylene glycol bisepoxypropyl ether; adding the product of reaction and fatty alcohol into potassium or sodium hydride for reaction at 80 DEG C, neutralizing, and reducing pressure to distill to obtain light yellow liquid; and adding and dissolving the product of reaction into the tetrahydrofuran propane sultone for reaction of 2-8h to finally obtain the 1,2-bis(2-oxygen propane sodium sulfonate-3-alkyl ether-propyl) glycol ether with the code of TTSS-2-n.The dialkyl ether disulfonate surfactant has a novel structure, high surface activity, low critical micelle concentration and good temperature and salt resistance and can be used for the exploitation of crude oil in the oil filed.

The invention discloses a preparation method of ethylene glycol bis(propionitrile) ether. The preparation method includes: using ethylene glycol and acrylonitrile as reaction raw materials, and allowing the two to have reaction under the reaction temperature of 30-70 DEG C and the catalyzing of a catalyst aqueous solution to generate the ethylene glycol bis(propionitrile) ether, wherein the catalyst aqueous solution is a composite alkali catalyst aqueous solution mixed by a triethyl benzyl ammonium hydroxide aqueous solution and a sodium hydroxide aqueous solution. Due to the fact that the composite alkali catalyst aqueous solution low in alkalinity is used, the alkalinity in the reaction solution is weakened greatly, the generation of the byproduct bis-propionitrile ether can be reduced greatly, the mole yield of the ethylene glycol bis(propionitrile) ether can be increased greatly to reach above 90%, purification can be performed easily to obtain the high-purity ethylene glycol bis(propionitrile) ether, and the purity of the ethylene glycol bis(propionitrile) ether can reach above 95%.

The invention relates to a polyurethane foam composite flame retardant and a preparation method thereof. The composite flame retardant is composed of TCPP and a diethylene glycol chloropropyl phosphate oligomer which are in the weight ratio of (40-50):(60-50) measured by 100 parts, and the diethylene glycol chloropropyl phosphate oligomer is also known as a diethylene glycol bis(2-(chloroethyl)phosphate oligomer and is a compound or a mixture shown as a structural formula II. By using the composite flame retardant provided by the invention, defects existing in a using process of a single flameretardant are avoided, meanwhile, the problem of high atomization performance is solved, and the prepared polyurethane foam sponge is very low in atomization value and good in flame retardance.

The invention discloses a preparing method of Nitrogen-doped carbon nano-material modified by metal cobalt. The preparing method comprises the first step of adopting Ethylene glycol-bis-(2-aminoethylether)-N,N,N',N'-tetraacetic acid or ethylenediaminetetraacetic acid as a carbon source and adding the carbon source into a beaker; the second step of stirring the carbon source and using a nitrogen source to adjust the ph value of a solution to be neutral till the carbon source is completely dissolved; the third step of adding water into cobalt nitrate or cobalt acetate to dissolve cobalt nitrate or cobalt acetate, putting dissolved cobalt nitrate or cobalt acetate into the solution of which the pH value is already adjusted; the fourth step of stirring the solution and afterwards again adjusting the pH value to be neutral, and putting the prepared solution into a rotary evaporator to spin out moisture; the fifth step of placing the solution to an electrothermal blowing dry box to dry the solution and obtaining a solid body; the sixth step of grinding the obtained solid body into fine powder and placing the fine powder into a porcelain boat, under the condition of the protection of nitrogen, placing the porcelain boat in a vacuum tube type high-temperature sintering furnace to be subjected to heating and roasting to prepare the Nitrogen-doped carbon nano-material modified by metal cobalt. According to the preparing method of the Nitrogen-doped carbon nano-material modified by metal cobalt, the steps of synthesis of carbon nano-materials, doping of nitrogen, and modification of metal ion cobalt are integrated into one, thus the obtained catalyst is large in superficial area, stable in structure and property, and is applicable to heterogeneous catalysis such as epoxidation of alkene.

The invention provides a colored bubble liquid comprising the following components in percentage by weight: 60-90 percent of distilled water, 2-30 percent of polyoxyethylene octylphenol (10) ether, 1-10 percent of propanetriol, 0.1-2 percent of tackifier and 0.01-3 percent of pearling agent, wherein the tackifier is rosin, terpene resin or petroleum resin; and the pearling agent is a mixture of 30-90 percent of ethylene glycol distearate and 10-70 percent of ethylene glycol monostearate. The colored bubble liquid can blow bubbles which have bright colors and are not easy to burst.

The invention relates to a new synthetic method of a PET imaging agent L-5-<18>FETP. The method comprises the following steps: (a) carrying out a reaction between 5-hydroxytryptophan and C<1-3>alkylolto obtain a product; carrying out a reaction between the product and di-tert-butyl (i.e. (BOC)2O) to obtain N-BOC-L-5-hydroxytryptophan; (b) fluorizating 1,2-glycol tosylate in the presence of the ions such as potassium carbonate, Kryptate2.2.2 and <18>F<-> to obtain 2-<18F>-fluoroethanol p-toluene sulphonic acid ester (i.e. <18>FCH2CH2OTs); (c) carrying out a reaction between the 2-<18F>-fluoroethanol p-toluene sulphonic acid ester and the alkali metal salt of the N-BOC-L-5-hydroxytryptophan (such as sodium salt) to obtain O-(2-<18F>fluoroethyl)-N-BOC-L-5-hydroxytryptophan; (d) hydrolyzing the O-(2-<18F>fluoroethyl)-N-BOC-L-5-hydroxytryptophan under acidic conditions to remove an amino group and a carboxy protective group and obtain a final product of O-(2-<18F>fluoroethyl)-N-BOC-L-5-hydroxy tryptophan; and (e) purifying the product. The method greatly improves the radiochemical yield, obtains a sufficient quantity of a target product and realizes the clinical application of the target product.

A carbon black-containing polyamide masterbatch composition is provided. The carbon black-containing polyamide masterbatch composition includes a polyamide compounded with an admixture of carbon black and a water-soluble polyamide. The water-soluble polyamide is a copolymer of caprolactam, ethylene glycol bis(2-aminoethyl)ether or ethylene glycol bis(3-aminopropyl)ether, and 5-sulfoisophthalic acid monosodium salt.

The invention relates to oil paint and particularly relates to fluororesin oil paint with weather resistance, temperature resistance and color retention. The fluororesin oil paint comprises the following materials in parts by weight: 20-24 parts of fluororesin, 12-15 parts of thermoplastic acrylic resin, 2-3 parts of sodium diacetate, 1-2 parts of ethylene glycol bis-glycidyl ether, 3-4 parts of isocyanuric acid tri-glycidyl ether, 10-12 parts of tripropylene glycol diacryate, 1-2 parts of europium trifluoroacetylacetone, 25-30 parts of urethane acrylate, 2-3 parts of polyacrylamide, 1-2 parts of ferrocene, 2-3 parts of isocyanate, 5-8 parts of epoxidized soybean oil, 1-2 parts of zinc naphthenate, 3-4 parts of diaminodiphenyl-methane, 5-6 parts of additive, 10-12 parts of dimethylbenzene and 10-12 parts of butyl acetate. The fluororesin oil paint has the advantages that the adhesive force of a paint film is strong, the color is bright and full, the color retention is lasting and yellowing resistance is achieved, also has the advantages of weather resistance, ageing resistance, temperature change resistance, anti-corrosion and anti-rusting performances and brushing resistance and the like and can be widely applied in protective decoration of articles in various environments.

The invention provides a dedicated emulsion-type composite anti-oxidant for MBS (methyl methacrylate-butadiene-styrene) and a preparation method of the dedicated emulsion-type composite anti-oxidant, and belongs to compositions taking high-molecular compounds as binders. The dedicated emulsion-type composite anti-oxidant comprises the following raw materials by mass: 5 to 20 parts of triethylene glycol bis[beta-(3-tert-butyl-4-hydroxy-5-methyphenyl)propionate (anti-oxidant 245), 5 to 30 parts of n-octadecyl-beta-(4-hydroxy-3,5-di-tert-butyl-phenyl)propionate (anti-oxidant 1076), 10 to 30 parts of dilauryl thiodipropionate or pentaerythritol tetrakis(3-dodecyl-thiopionate), 5 to 10 parts of stearic acid or oleinic acid, and 40 to 60 parts of deionized water. The dedicated emulsion-type composite anti-oxidant has the advantages that the oxidative degradation prevention efficiency is high; the compatibility to MBS latex is high; adverse effects on other performances of a PVC product are avoided; the heat-proof and solvent extraction-proof capabilities are high; adverse reaction between the dedicated emulsion-type composite anti-oxidant and other additives is avoided; toxicity, peculiar smell and solvent evaporation are avoided; convenience is brought for environmental protection; the performance is ideal; the preparation technology is convenient to operate; the preparation cost is lower.

The invention relates to a synthesis method of glycol dialkyl ether. The synthesis method is characterized by comprising the following step: reacting ethylene oxide with dialkyl ether which are utilized as raw materials in the presence of active carbon supported acid as a catalyst so as to obtain the glycol dialkyl ether, wherein the reaction temperature is 30-100 DEG C, the reaction pressure is less than 5.0MPa, the reaction time is 0.5-5 hours, the mol ratio of dialkyl ether to ethylene oxide is (1:1)-(10:1), the use amount of the active carbon supported acid catalyst is 0.2-5% of the total mass of reactants, the supported acid amount of the active carbon supported acid catalyst is 5-60mt%, and the active carbon supported acid catalyst is single-component supported acid catalyst or composite supported acid catalyst. The synthesis method has the advantages that the yield and the selectivity of glycol dialkyl ether are high; the catalyst can be easily separated from products; and the corrosivity on equipment is small, and the production process is clean.

The invention relates to a method for synthesizing a chelating reagent commonly used in the chemistry, medicine or molecular biology, in particular to a method for producing ethylene glycol-bis (2-aminoethyl ether) tetraacetic acid (EGTA) and belongs to the technical field of fine chemical engineering. In the method for producing the EGTA, disodium iminodiacetate and triethylene glycol dichlorideare taken as production raw materials, parameters such as temperature, pH and the like in a production process are controlled strictly to synthesize the EGTA at the same time, and the purification ofthe EGTA is realized by a boiling water rinsing method. The EGTA prepared by the method of the invention has the advantage of high purity.

The invention discloses a high-processability polyurethane shoe sole material stock solution which comprises a component A and a component B, wherein the component A is prepared from polyester polyol, a chain extender, a catalyst, a foaming agent and a foam stabilizer; the polyester polyol is composed of polyadipic acid ethylene glycol diglycol ester polyalcohol, polyadipic acid ethylene glycol diethylene glycol glyceride polyalcohol and polyphenylene anhydride adipic acid ethylene glycol diglycol ester polyalcohol; and the component B is an isocyanate-terminated prepolymer prepared by reacting isocyanate with polyadipic acid ethylene glycol diglycol ester polyalcohol, polysuccinic acid adipic acid ethylene glycol diglycol ester polyalcohol and polyether glycol. The shoe sole prepared from the high-processability polyurethane shoe sole material stock solution can be used for preparing the shoe sole with higher hardness under low density conditions; and the prepared shoe sole is convenient for subsequent processing, has favorable toughness, can not be easily deformed or damaged, and is comfortable to wear.

The invention discloses a water-based latent curing agent for an epoxy resin and application and a preparation method of the water-based latent curing agent. The preparation method of the water-based latent curing agent for the epoxy resin comprises two steps of: preparing a polymer of ethylene glycol diglycidyl ether and polyethylene glycol; and preparing the water-based latent curing agent for the epoxy resin. A sizing agent which is prepared from the water-based latent curing agent for the epoxy resin is safe and sanitary, the stability and the bundling of the emulsion can be improved, and the interface adhesion strength of the epoxy resin carbon fiber composite materials is improved.

The invention discloses a disproportionated rosinyl anion / non-ion composite surfactant and a preparation method thereof. According to the invention, the non-ion is rosin polyethyleneglycol diester and the anion is dehydrogenated rosin polyethyleneglycol diester sulfonate. The invention also discloses the preparation method of the composite surfactant. According to the preparation method, a one-pot method is adopted, about 50% of dehydroabietic acid is contained in dehydrogenated rosin and the benzene ring of dehydroabietic acid can be subjected to sulfonation reaction. The preparation method comprises the steps of esterifying the dehydrogenated rosin and polyethylene glycol to form sulfonation reaction; and sulfonating the benzene ring in the diester by using a sulfonating agent, and salifying, so as to obtain the disproportionated rosinyl anion / non-ion composite surfactant by utilizing the one-pot method. The critical micelle concentration of the prepared surfactant is 0.08-0.1mmol / L and the range of the surface tension is 38.9-42.1mN / m. The surfactant containing anion and non-ion in the product is a novel functional composite green surfactant.

The invention relates to a hair loss prevention shampoo and a preparation method thereof. The shampoo comprise Cymbopogon citrates extract, Chinese Gall extract, ginger extract, an antiseptic, aloe extract, vitamin B, pearl powder, ethanol, lard, ethylene glycol distearate, chitosan and deionized water. The preparation method comprises the following steps: weighing raw materials, mixing the Cymbopogon citrates extract, the Chinese Gall extract, the ginger extract, the antiseptic, the aloe extract, vitamin B, the pearl powder and deionized water, heating while stirring until 40-60DEG C, and carrying out heat insulation to obtain a first mixture; mixing lard with ethylene glycol distearate, and stirring and heating until 45-55DEG C to obtain a second mixture; and adding the first mixture and the second mixture into an emulsifying pot, heating until 80-90DEG C, naturally cooling, adding ethanol, stirring, and carrying out vacuum concentration in order to obtain a finished product. The hair loss prevention sterilization has obvious sterilization and hair loss prevention effects, and gets people's love.

The invention relates to a magnetic microzyme surface imprinted adsorbent for selectively separating cefalexin as well as a preparation method and application thereof, belonging to the technical fields of material preparation and environment pollution improvement. The preparation method comprises the following steps of: firstly, coating nanometer gamma-Fe2O3 particles on the surface of microzyme to form a magnetic microzyme composite material by using cross-linking chitosan; secondly, carrying out surface modification on the magnetic microzyme composite material to form a magnetic microzyme composite material with an initiator; and finally, with the cefalexin as a template molecule, methylacrylic acid as a function monomer, ethylene glycol-bis(methylacrylic acid) ester as a cross-linking monomer, cuprous chloride as a catalyst, carrying out atom transfer radical polymerization to finish the preparation. The obtained adsorbent has an adsorptivity, selective recognition and enriching performance for the cefalexin and superparamagnetism for an external magnetic field and can be applied to selective recognition and separation of the cefalexin in an aqueous solution.

The invention discloses a light-duty liquid detergent and a preparation method thereof. The light-duty liquid detergent comprises the following components in parts by weight: 4-8 parts of sodium lauryl sulfate, 1-3 parts of hydroxymethyl cellulose, 1-3 parts of fatty alcohol polyethenoxy ether sodium sulfate, 5-10 parts of coconut oil acyl diethanolamine, 2-4 parts of sodium citrate, 2-4 parts of sodium silicate, 0.2-0.4 part of rose essence, 20-40 parts of ethylene glycol bis-stearate and 3000-5000 parts of water. Compared with the prior art, the invention has the advantages of good cleaning effect, mild properties, does not damage the surface of fabric, silk or the like, is easy to clean, does not leave any chemical residue, and is nontoxic and harmless to the human body.