98 results about "Nonanoic acid" patented technology

The invention firstly provides application of nonanoic acid in artemia culture. In the application, the nonanoic acid takes silicon dioxide or chitosan as a carrier and is directly added into a culture water body. Wherein when the nonanoic acid takes silicon dioxide as a carrier, the use concentration of the nonanoic acid in a water body is 150-300 micrometers; when chitosan is used as a carrier of the nonanoic acid, the use concentration of the nonanoic acid in the water body is 55-90 micrometers. The inventor accidentally finds that after the nonanoic acid is mixed with the silicon dioxide or the chitosan and then added into the culture water body, the sudden drop of the pH value of the water body cannot be caused, so that an acid-base regulator does not need to be added, and the incubation and growth of artemia cannot be influenced; meanwhile, uniform dispersion and local high concentration of the nonanoic acid in the water body are realized by using the carrier, so that the use amount of the acid is reduced, and the antibacterial effect is remarkably improved. The invention further provides an artemia breeding method adopting the nonanoic acid as the antibody replacement product. According to the artemia obtained through the breeding method, the hatching rate and the survival rate of the artemia are remarkably increased, the number of vibrios carried by the artemia is effectively reduced, expression of related genes such as growth and immunity of the artemia is up-regulated, development and growth of the artemia are promoted, ecological safety is improved, and unexpected technical effects are achieved.

The invention discloses an elastic powder block type cosmetic product and a preparation method thereof. The elastic powder block cosmetic product comprises a powder component, an oil phase component, a preservative and an antioxidant, the oil phase component comprises an organic silicon elastomer, an ester composition and silicone oil; wherein the organic silicon elastomer is prepared from a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer; the ester composition comprises isononyl isononanoate and diisostearyl malate, and the mass ratio of isononyl isononanoate to diisostearyl malate is (2: 1)-(3: 1); the silicone oil comprises polydimethylsiloxane; the mass ratio of the organic silicon elastomer to the ester composition is (1: 11)-(1: 13.5). The elastic powder block type cosmetic product is moderate in viscosity, light and thin in texture and good in ductility, stability and makeup maintaining performance.

The invention provides a method for regulating and controlling aroma of grape fruits through an exogenous plant growth regulator, which comprises the following steps of: spraying three exogenous plant hormones, namely methyl jasmonate, phenylalanine and strigolactones, on 'Hanxiangmi' grape fruits with strong rose aroma, and analyzing the aroma composition and content of the treated grape fruits. The result shows that the rose fragrance intensity of the'Hanxiangmi 'grapes is enhanced after the jasmonic acid methyl ester treatment; after strigolactones treatment, components such as alpha-terpilenol, beta-ionone, nonanoic acid, geraniol and the like in grape fruits are prominent, so that the treated grapes are converted into mixed fragrance type grapes with flower fragrance, fruit fragrance and grass fragrance, and the fragrance layers are rich; and the treatment effect of phenylalanine is not obvious. The invention provides a reference for the research of strigolactone in fruit quality.

The invention belongs to the technical field of cosmetics, and particularly discloses a freeze-dried powder base solution and a preparation method thereof. The freeze-dried powder base solution comprises a component A and a component B. The component A is prepared from magnesium potassium fluosilicate, a filling agent, lauroyl lysine, titanium dioxide, CI 77492, CI 77491, CI 77499 and the balance water, butanediol, xanthan gum, a thickening agent, trehalose, polysorbate-60, an emulsifying agent a, phenyl polytrimethylsiloxane, isononyl isononanoate and a preservative. The component B is prepared from the following components: the balance of water, butanediol, a preservative, magnesium sulfate, an emollient, disteardimonium hectorite, phenyl polytrimethylsiloxane, isododecane, trimethylsiloxy silicate ester, an emulsifier b and PEG-10 (Polyethylene Glycol) polydimethylsiloxane. Various raw materials are mixed, so that the obtained liquid foundation has relatively good dispersity, has smooth and refreshing skin feeling, and is prevented from being thick, sticky and greasy.

The invention relates to the field of cosmetics, and particularly discloses a novel magical color magnetic plane water-gloss cream and a preparation method thereof.The novel magical color magnetic plane water-gloss cream is prepared from, by weight, 20%-60% of hydrogenated polyisobutene, 10%-55% of isononyl isononanoate, 1%-15% of styrene / isoprene copolymer, 0.1%-8% of dextrin palmitate, 0.2%-16% of film-forming agent, 0.01%-0.5% of antioxidant, 0.1%-1% of preservative and 0.01%-10% of magnetic pearling agent. And 0.35-13% of a humectant. A wax-free formula is adopted, a transparent raw material is used as a basis, a magnetic pearling agent with magnetic attraction force is matched, filling can be carried out through a mold with a magnet, magnetic pearling agent particles are induced to be directionally arranged, formed patterns can be not limited according to mold modeling, a common filling machine is adopted as filling equipment, and products with uniform formula, color and pattern lines can be obtained. And the formula paste is transparent and stable, and has good skin feeling and makeup effect.

This invention discloses a method for preparing high-quality bio-based 1,9-nonanediol, comprising the following steps: transesterification, precipitation, fatty acid methyl ester refining, ozone oxidation pyrolysis, solvent recovery, esterification, dimethyl azelaate refining, and hydrogenation to obtain high-quality bio-based 1,9-nonanediol. This invention achieves gradient and full-component utilization of vegetable oil raw materials: the oil-based portion of triglycerides is used to produce high-quality bio-based 1,9-nonanediol, while simultaneously producing byproducts such as methyl palmitate, methyl stearate, propionic acid, hexanoic acid, and nonanoic acid; the glycerol-based portion of triglycerides is used as a byproduct of glycerol production. This invention utilizes esterification to reconstruct the products of ozone oxidation pyrolysis, converting the high-boiling-point monomethyl azelaate into the low-boiling-point dimethyl azelaate, achieving efficient separation from saturated fatty acid methyl esters. The dimethyl azelaate, as a raw material, is then hydrogenated to obtain high-quality nonanediol, significantly reducing production costs.

The invention provides a synthesis method of nonanoic acid-2, 2-dinitropropyl ester, which comprises the following steps: mixing an organic solvent, 2, 2-dinitropropanol, nonanoic acid and a solid acid catalyst, and heating to react; the preparation method of the solid acid catalyst comprises the following steps: mixing and dipping a zirconyl nitrate aqueous solution and microsphere silica gel, separating a solid, carrying out heat treatment on the solid at 80-150 DEG C, soaking the solid subjected to heat treatment in sulfuric acid, and roasting the soaked solid at 400-600 DEG C to obtain the solid acid catalyst. According to the synthesis method of the nonanoic acid-2, 2-dinitropropyl ester, the use of liquid strong acid is avoided, the operation is simple, the corrosion to reaction equipment is reduced, and the solid acid catalyst can be repeatedly utilized.

The invention relates to compositions comprising glyceryl nonanoate and a lipase inhibitor and their use.

A highly efficient method for extracting tea saponin from camellia oleifera seed meal is characterized by comprising the following steps: (1) mixing fatty acid A, fatty acid B, sodium hydroxide, and water to prepare an extractant, wherein fatty acid A is at least one of hexanoic acid, heptanoic acid, octanoic acid, or nonanoic acid, and fatty acid B is decanoic acid; (2) mixing the camellia oleifera seed meal with the extractant prepared in step (1) to extract tea saponin; and (3) after the extraction is completed, adding hydrochloric acid, centrifuging and separating the layers, and collecting the extract at the lower layer. The technical solution provided by the present invention has the following advantages: a high tea saponin extraction rate; the extractant does not contain volatile organic solvents and is easily recyclable and environmentally friendly; the extractant has good reusability and low extraction cost.

The invention discloses breeding of a pichia kluyverovii strain with high yield of beta-lyase and application of the pichia kluyverovii strain in beer fermentation, and belongs to the technical field of bioengineering. The pichia kluyveri B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number of the pichia kluyveri B21 is CGMCC (China General Microbiological Culture Collection Center) No.34028. The strain can produce high-yield beta-lyase, and the beta-lyase is catalyzed to produce volatile mercaptan and endows beer with fruity flavor. The contents of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl caprate, phenethyl acetate, linalool and nerol generated by the pichia kluyveri B21 in a hops simulated culture medium are relatively high, and the volatile substances can increase the fruit fragrance and flower fragrance of beer and enrich the flavor of the beer. The pichia kluyveri B21 is expected to be added into production of other food and beverages so as to enrich flavor substance components.

The application discloses a kind of polymer oil displacement agent for carbonate fractured-vug type reservoir and preparation method thereof, step 1, with acetone and ethanol mixed solution as solvent, N, N-dimethylpropylene diamine, diethyl ether and perfluorinated nonanoic acid are added into acetone-ethanol mixed solution, after complete reaction, chloropropene is added, continue to react, after reaction is finished, solvent is removed by evaporation, to obtain fluorocarbon cation hydrophobic monomer CF-1;Step 2, white oil, emulsifier Span80 and Tween80 with mass ratio of 35-45:1-3:1-2 are mixed uniformly to obtain oil phase;AM, sodium p-styrenesulfonate and fluorocarbon cation hydrophobic monomer CF-1 are dissolved in deionized water, sodium bisulfite is added, and stirred uniformly to obtain aqueous solution;The aqueous solution is added to the oil phase to obtain a uniform emulsion, ammonium persulfate is added, and the polymer oil displacement agent is obtained by reaction. It has higher temperature resistance and salt resistance, and greatly reduces the adsorption of carbonate reservoir on the oil displacement agent.

The invention belongs to the technical field of fine chemical engineering, and relates to a method for preparing high-purity n-heptanoic acid and n-nonanoic acid based on temperature control phase transfer catalysis and green oxidation. The method comprises the following steps: adding dehydrated 1-hexene or 1-octene, a PETPP / Rh catalyst, toluene / water and PEG-400, introducing a CO / H2 mixed gas to 4.5-5.0 MPa, carrying out a reaction, carrying out phase splitting, and carrying out molecular distillation on an organic phase to obtain an n-heptanal crude product or an n-nonanal crude product; and carrying out electrolysis in an electrolyte containing MnSO4, AgNO3 and H2SO4, and purifying the reaction solution to obtain n-heptanoic acid or n-nonanoic acid. No heavy metal pollution is generated in the reaction process, the concentration of manganese ions in the wastewater is lower than 0.05 ppm, and the COD value is 30 mg / L or below. The activity of the catalyst is kept above 90% after the catalyst is cyclically used for more than 20 times, the electrolyte can be repeatedly used for more than 50 times, and the recycling rate of the by-product hydrogen exceeds 85%.

The invention relates to compositions comprising glycerol and glyceryl esters of nonanoic acid, their preparation and use.

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

The invention discloses a method for directionally preparing high-purity azelaic acid from oleic acid based on a micro-channel reactor, which comprises the following steps: mixing oleic acid and hydrogen peroxide dissolved with a catalyst, and feeding the mixture into the micro-channel reactor for oxidative cracking reaction to obtain oxidation liquid mainly containing the azelaic acid and the oleic acid; standing and layering the oxidation liquid to obtain a water phase A and an oil phase A; hot water is introduced into the oil phase A containing the nonanoic acid and the azelaic acid for extraction and liquid separation, and a water phase B and an oil phase B are obtained; fractionating the oil phase B to obtain high-purity nonanoic acid; cooling and crystallizing the water phase B to obtain a crude azelaic acid product, and melting and evaporating the crude product to remove moisture to obtain high-purity azelaic acid. Based on the microchannel reactor, hydrogen peroxide is used as an oxidizing agent, oleic acid double bonds can be directionally oxidized through a catalyst system, oleic acid is directly oxidized and cracked into nonanoic acid and azelaic acid in a short time, the reaction efficiency can be greatly improved, the reaction time can be shortened, and the use of a solvent and a phase transfer catalyst is avoided; the method has the advantages of high selectivity, high safety and remarkable environmental protection.

The invention discloses a preparation method and application of a nonanoic acid microcapsule suspending agent, and relates to the technical field of herbicides. The nonanoic acid microcapsule suspending agent consists of nonanoic acid, white carbon black, an emulsifying agent, a dispersing agent, a thickening agent, an anti-freezing agent, a preservative, a de-foaming agent and de-ionized water. Wherein the nonanoic acid is adsorbed in pores in the white carbon black, and the emulsifier and the dispersing agent are coated on the surface of the white carbon black, so that the coating rate and the stability are relatively high. The formula parameters of the nonanoic acid microcapsule suspending agent comprise 10-30% of nonanoic acid, 4-15% of white carbon black, 1-5% of an emulsifier, 2-4% of a dispersing agent, 0.1-1% of a thickening agent, 3-4% of an anti-freezing agent, 0.1-0.3% of a preservative, 0.1-0.2% of a defoaming agent and the balance of deionized water. The prepared nonanoic acid microcapsule suspending agent is good in application in weed control, stable in component, environment-friendly and safe.

Detergent compositions can include a surfactant; cloudiness causing perfume ingredient; and octanoic acid, nonanoic acid, decanoic acid, or a combination thereof. Also included are methods of solubilizing cloudiness causing perfume ingredients.

The application discloses a high-yield beta-lyase Pichia kluyveri strain breeding and application in beer fermentation, belonging to the field of bioengineering technology. Pichia kluyveri The Pichia kluyveri (Pichia kluyveri) B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 34028. The strain can produce high-yield beta-lyase, the enzyme catalyzes the production of volatile mercaptans, and can impart beer fruity aroma. The Pichia kluyveri B21 produces high content of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl decanoate, phenethyl acetate, linalool and nerol in hop simulation culture medium, and these volatile substances can increase beer fruity aroma, floral aroma and rich beer flavor. The Pichia kluyveri B21 is expected to be added to the production of other food and beverage to enrich flavor substance components.

This invention provides a palladium extractant and its preparation method. The extractant is prepared from the following raw materials in weight percentages: diisoamyl sulfide: 20-50%, isooctanol: 5-15%, and methyl nonanoate: 50-70%. This palladium extractant has a large capacity, low toxicity, high extraction efficiency, virtually no flocculent formation during back-extraction, stable performance, and long lifespan. The palladium extractant can achieve an extraction efficiency of 99.98%, and the back-extraction rate can reach over 98%.

The invention aims to provide the make-up fixing pressed powder composition which has the advantages of long-acting make-up fixing, rapid oil adsorption and no powder feeling, and the preparation method thereof. The make-up fixing pressed powder composition is prepared from the following components in percentage by mass: 50 to 70 percent of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, 20 to 40 percent of isononyl isononanoate, 2 to 5 percent of polydimethylsiloxane, 0.4 to 1.2 percent of dibutyl isocapryloyl glutamine, 0.4 to 1.2 percent of dibutyl lauroyl glutamine, 0.36 to 0.9 percent of caprylyl glycol, 0.04 to 0.1 percent of ethyl glycerol and the balance of water. 0.4 to 1 percent of phenoxyethanol; the preparation method is used for preparing the make-up fixing pressed powder composition. The invention is applied to the technical field of cosmetics.

The invention relates to the technical field of cosmetics, in particular to a thickening-free oil-control emulsification system based on interface structure stability and a preparation method of the thickening-free oil-control emulsification system. The raw materials of the emulsion comprise a water phase and an oil phase, wherein the preparation raw materials of the water phase comprise water, silica, an emulsifier and PEG / PPG-18 / 18 polydimethylsiloxane; the oil phase is prepared from the following raw materials: polydimethylsiloxane, isononyl isononanoate, isohexadecane, caprylic / capric triglyceride, a co-emulsifier and a structuring agent. The preparation process of specific raw materials, precise temperature control and gradient stirring homogenization is combined, the problems that a thickener-free emulsion is unstable, silica is easy to separate out, the skin feeling is poor and the like are solved, a stable system, efficient oil control, freshness and mildness are achieved, and the industrial production requirement is met.

This invention discloses a method for preparing capsaicin-like substances by temperature-responsive eutectic solvent extraction, comprising the following steps: drying Yunnan chili peppers (after removing stems and seeds), pulverizing, sieving, and collecting the chili powder; mixing lidocaine (HBA) with six alkane-chain carboxylic acids (valerate, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, and lauric acid) at a 1:1 molar ratio to form a homogeneous and transparent liquid, TRDES; weighing the chili powder, adding it to the TRDES aqueous solution, and extracting by shaking; after extraction, centrifuging, and diluting the supernatant to obtain capsaicin-like substances. This invention uses temperature-responsive eutectic solvent extraction to prepare capsaicin-like substances, which is simple, highly efficient, and allows for the recycling of extraction reagents, effectively saving resources. It has significant practical and industrial value for promoting the large-scale production of capsaicin-like substances and enhancing their high-value applications.

The invention relates to the technical field of biological medicine, in particular to a cell membrane labeled molecular probe, a preparation method and application of the cell membrane labeled molecular probe in the imaging direction of drug-resistant bacteria, and the preparation method of the cell membrane labeled molecular probe comprises the following steps: step 1, mixing N, N '-carbonyldiimidazole and nonanoic acid for reaction to obtain active ester, tert-butyl (2-aminoethyl) carbamate is added for a reaction, and tert-butyl (2-nonanoylamido ethyl) carbamate is obtained; step 2, the tert-butyl (2-nonanoylamido ethyl) carbamate and trifluoroacetic acid are subjected to a reaction, and N-(2-aminoethyl) nonanoylamides are obtained; 3, at the room temperature, fluorescein isothiocyanate ester, N-(2-aminoethyl) nonanamide and triethylamine are subjected to a reaction, and the molecular probe is obtained. The molecular probe prepared by the invention has a stable chemical structure, is not easy to degrade or decompose in a physiological environment, can maintain long-time fluorescence performance, and is suitable for long-time cell membrane marking and imaging experiments.

The application discloses a large-size high-carbon high-chromium alloy ball quenching oil, a preparation method and a use method. The quenching oil comprises a cooling accelerator, the cooling accelerator is a mixture of polyisobutylene maleic anhydride and polyhydric alcohol ester, the mass ratio is (2-5):(1-2), the mixture is trimethylolpropane tri-n-nonanoate and dipentaerythritol ester, and the mass ratio is (1-3):1. The polyisobutylene maleic anhydride is introduced to replace the original polyisobutylene, so that the boiling point of the quenching oil is reduced, the cooling effect is ensured, the thermal oxidation stability is ensured by the introduced maleic anhydride, the film breaking temperature in the steam film stage is improved, the high-temperature film breaking and the boiling point reduction effects are realized, the internal structure is uniform, the hardness and wear resistance of the ball can be effectively ensured. Since the substance has hydrophilicity and lipophilicity, the'mottling' phenomenon caused by the incomplete cleaning of the ball in the tempering process is reduced.

The application discloses a quenching oil special for precision gears, a preparation method and a use method, the material of the precision gears is 20CrMnTi or 20Cr2Ni4 or 17CrNiMo6, and the quenching oil is characterized by comprising 20-80 parts of base oil, 2-10 parts of a cooling catalyst, 0.2-1.0 parts of a surfactant and 0.2-2 parts of an antioxidant. The cooling catalyst at least comprises a mixture of polyisobutylene maleic anhydride and any one of trimethylolpropane tris-n-nonylate, pentaerythritol tetra-n-nonylate and bis-pentaerythritol ester, and the mass ratio is (2-5):(1-2). The polyisobutylene maleic anhydride is applied to the field of quenching oil, when the polyisobutylene maleic anhydride and polyisobutylene are used as the cooling catalyst due to the similar properties, the service life of the quenching oil is unexpectedly prolonged on the basis of the optimal cooling characteristics, the anti-aging ability and the hot shear ability are improved, the generation of oil dirt is inhibited, the waste of the quenching oil in the quenching process is reduced, and the cost is lowered.

The invention belongs to the technical field of gel, and provides nonionic eutectic solvent / chitosan frozen gel as well as a preparation method and application thereof. The method comprises the following steps: mixing thymol and nonanoic acid to obtain a nonionic eutectic solvent; mixing a non-ionic deep-eutectic solvent and a chitosan solution, and performing ultrasonic treatment to obtain a reaction solution; and mixing the reaction solution with a trialdehyde phloroglucinol aqueous solution, and sequentially carrying out vortex treatment, cross-linking and freeze drying to obtain the nonionic eutectic solvent / chitosan frozen gel. The NIDES / CS frozen gel composite material is constructed by adopting an in-situ cross-linking method, trialdehyde phloroglucinol is taken as a cross-linking agent, phenol NIDES is taken as an extraction material, and the phenol NIDES is embedded into a CS matrix through intermolecular interaction force by utilizing the surface characteristic that CS is rich in-OH, so that the aims of better adsorbing an analyte and more conveniently separating from a sample solution are achieved.

The invention relates to the technical field of organic synthesis catalysts, and discloses an isononanoic acid catalyst as well as a preparation method and application thereof. The isononanoic acid catalyst comprises a carrier and an active component loaded on the carrier, the carrier is nitrogen-doped activated carbon; the active components comprise a first active component Au and a second active component; and the second active component is selected from one or more than two of Fe, Co and Ni. The isononanoic acid catalyst is higher in catalytic activity, not prone to inactivation and lower in catalyst cost, and meanwhile the preparation method of the isononanoic acid catalyst is mild in reaction condition and environmentally friendly in process; the isononanoic acid is prepared from isononyl alcohol by adopting the isononanoic acid catalyst, the participation of hydrogen peroxide is not needed, the whole process is safe and efficient, the isononanoic acid catalyst is easy to separate from a product, the post-treatment method is simple, the prepared isononanoic acid is higher in purity, and meanwhile, the isononanoic acid catalyst has higher isononanoic acid selectivity and isononyl alcohol conversion rate.

The invention relates to a method for synthesizing azelaic acid and nonanoic acid through ozone oxidation by using a mixed solvent, and belongs to the technical field of fine chemical engineering. The method comprises the following steps: S1, carrying out conjugation treatment on cottonseed oleic acid, a metal oxide catalyst and maleic anhydride or acrylic acid, and then carrying out molecular distillation to obtain high-purity oleic acid; s2, mixing oleic acid with an acetic acid-low carbon alcohol mixed solvent, and sequentially carrying out pre-oxidation and deep oxidation in a tank reactor and a micro-channel reactor to obtain an odorous oxide; s3, adding hydrogen peroxide, and cracking under an acidic condition to obtain a lysate; and S4, crystallizing and separating azelaic acid, and carrying out molecular distillation on mother liquor to recover the azelaic acid and the solvent. Through raw material pretreatment and the synergistic effect of the mixed solvent and the combined reactor, side reactions are reduced from the source, so that the possible problems of low product purity, low reaction efficiency, high solvent consumption and the like in the traditional process are solved. The method is helpful for realizing higher yield and purity of the target product and promoting the cyclic utilization of the solvent, and the process flow is more green and economical.

The invention discloses a performance regulation and control method and application of high-stability and low-gas-production vegetable insulating oil, and the regulation and control method comprises the following steps: S1, mixing trimethylolpropane with potassium hydroxide, and heating to melt and flow to obtain a reaction mixture; s2, adding n-nonanoic acid into the reaction mixture, and heating for transesterification; s3, washing, oscillating, standing, separating liquid, and taking an upper-layer oil sample; s4, adding tridecafluoroheptanoic acid, xylene and p-toluenesulfonic acid, and heating to carry out esterification water-carrying reaction; s5, adding a molecular sieve, alkaline Al2O3, activated clay and a silica gel adsorbent, and dehydrating and drying; s6, impurities are removed, and a TMPN sample is obtained; s7, the TMPN sample and natural ester insulating oil are stirred according to the mass fraction proportion, the TMPN-NE insulating oil is obtained, the stray gas content is low, the high-temperature oxidation resistance is excellent, and the TMPN-NE insulating oil can be used in the transformer electricity-heat-flow coupling high-temperature working condition environment for a long time.

The invention discloses application of kapok polysaccharide in preparation of a medicine for treating intestinal barrier related diseases, and relates to the technical field of natural medicinal chemistry. According to the invention, the kapok polysaccharide has the function of protecting intestinal barriers for the first time, so that the application field of kapok can be greatly expanded; the extraction process of kapok polysaccharide is also optimized, a three-phase partition method based on a deep-eutectic solvent is provided, the deep-eutectic solvent composed of lauric acid and one of decanoic acid, nonanoic acid and octanoic acid is used for replacing traditional toxic tert-butyl alcohol, an ammonium sulfate salting-out solution is matched, ultrasonic-assisted extraction is combined, the optimal process parameters are defined, and the extraction efficiency is improved. The method has the advantages of being green, safe and free of toxic residues.