687 results about "Fatty alcohol" patented technology

A composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content alpha olefin or by deducting from a recycle inventory a recycle content value applied to an alpha olefin composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by an alpha olefin manufacturer has its origin in recycled waste and / or pyrolysis of recycled waste and / or in thermal steam cracking of recycle content pyoil.

The invention provides a composite hydrogen transfer catalyst based on an MOFs material as well as a preparation method and application of the composite hydrogen transfer catalyst. The composite hydrogen transfer catalyst comprises the MOFs material loaded with an active metal component and solid alkali, the active metal component is selected from at least one of palladium, platinum, ruthenium, rhodium and nickel; the active metal component accounts for 0.5-5% of the mass of the catalyst; the MOFs material is selected from at least one of ZIF-8, MIL-101, UiO-66, HKUST-1 and MOF-5 (Metal Organic Frameworks); the solid alkali is selected from at least one of magnesium oxide, calcium oxide, hydroxyapatite and barium oxide. The catalyst provided by the invention has the advantages of high catalytic activity, good selectivity, strong stability, reusability and the like, can efficiently catalyze fatty alcohol to perform hydrogen transfer reaction under a lower-temperature reaction condition to prepare Guerbet alcohol, remarkably improves the yield and purity of a product, and reduces the reaction energy consumption and cost.

The present application relates to a kind of polyester FDY spinning oil agent.The polyester FDY spinning oil agent includes: 20wt%-25wt% of coconut oil polyoxyethylene ether, 5wt%-10wt% of fatty alcohol polyoxyethylene ether, 8wt%-15wt% of EL type polyoxyethylene ether, 45wt%-60wt% of smoothing agent, 1wt%-5wt% of antistatic agent and 5wt%-10wt% of water, wherein the number of EO in the coconut oil acid polyoxyethylene ether is 4-30.The polyester FDY spinning oil agent has excellent emulsification stability, wetting property, heat resistance and wear resistance, and the oil film strength is high, and polyester yarn is not easy to produce hair when used for preparation.

The invention relates to the technical field of etching solutions, and discloses a molybdenum-aluminum-niobium etching solution for a TFT-LCD (Thin Film Transistor Liquid Crystal Display), which comprises the following components in percentage by mass: 50 to 60 percent of phosphoric acid, 3 to 8 percent of nitric acid, 5 to 10 percent of glacial acetic acid, 1 to 5 percent of aluminum nitrate, 0.1 to 0.5 percent of diphenyl thiourea, 1 to 5 percent of etidronic acid, 3.0 to 5.0 percent of sodium hexametaphosphate, 0.1 to 0.2 percent of fatty alcohol-polyoxyethylene ether, 0.5 to 0.8 percent of amino trimethylene phosphonic acid and the balance of ultrapure water. The invention further discloses a preparation method of the molybdenum-aluminum-niobium etching solution. According to the invention, a phosphorus nitrate vinegar system, a composite additive, a novel corrosion inhibitor, a metal ion chelating agent and a surfactant matched with the etching liquid are adopted, so that the molybdenum-aluminum-niobium multi-layer composite metal film can be simultaneously etched at one time; the etching solution has the advantages of being uniform in etching, capable of inhibiting Mo / Nb etching, high in selectivity, controllable in etching rate, free of residues, long in service life, high in stability and the like.

The invention discloses bath oil with stability and foamability and a preparation method thereof, and relates to the technical field of daily chemical products. The vegetable oil consists of peony seed oil, grape seed oil and sunflower seed oil in a mass ratio of 1: 2: 2. The bath oil is prepared from the following raw material components in parts by weight: 45 to 50 parts of vegetable oil, 18 to 22 parts of a surfactant, 16 to 18 parts of fatty alcohol-polyoxyethylene ether, 8 to 12 parts of caprylic / capric triglyceride, 1 to 3 parts of span 80, 0.1 to 0.5 part of an antioxidant, 1 to 3 parts of cocamidomethyl MEA and 0.1 to 2 parts of essence. On the basis of the compound vegetable oil, the optimal adaptive surfactant is screened out, then the compound antioxidant is introduced, and the bath oil which is long-acting, stable, high in foaming quality, clean, mild, nourishing and comfortable is effectively formed.

The invention discloses a low-temperature phase change energy storage material and a preparation method thereof, and relates to the technical field of cold storage materials. The provided organic phase-change material is formed by jointly matching alkane and fatty alcohol, the melting temperature of the organic phase-change material is 0-10 DEG C, the crystallization temperature is-5-5 DEG C, and the melting temperature and the crystallization temperature can be adjusted according to requirements. The material has high latent heat of phase change, and can be efficiently used in scenes of cold chain transportation, refrigeration house energy conservation and the like. The material is non-toxic and harmless, has stable cycle performance, and effectively overcomes the defects of poor cycle performance, easy phase separation, large supercooling degree and the like of an inorganic material. The material is applied to cold storage energy conservation or cold chain transportation, and the effects of energy conservation, environmental protection and electric charge saving can be achieved by utilizing the valley electricity energy storage principle.

Hair Styling Compositions and Processes: The disclosure relates to compositions comprising (a) at least one sucrose ester; (b) at least one nonionic polysaccharide thickening agent; (c) at least one cationic surfactant; (d) at least one emulsifier selected from fatty alcohols, esters, or a combination thereof; (e) optionally, at least one C3-C8 polyol selected from diols and triols; and (f) optionally, at least one fatty compound. The compositions may be used as leave-in hair styling compositions. The disclosure also relates to kits comprising the compositions and processes for using the compositions. Figure for the abstract: Figure 1

The invention relates to a low-permeability heavy oil composite nano oil displacement agent, which comprises a surfactant, fatty alcohol-polyoxyethylene ether, polyacrylamide, nano particles and water, and comprises the following components: 40%-60% of betaine, 10%-30% of fatty alcohol-polyoxyethylene ether, 20%-40% of polyacrylamide, 2% of nano particles (the particle size ranges from 5 nm to 50 nm), 0.1% of a pH regulator 0.01 and the balance of water. According to the composite nano oil-displacing agent disclosed by the invention, a stable nano particle solution is formed by optimizing the variety and proportion of the surfactant, the variety and proportion of the fatty alcohol-polyoxyethylene ether, the variety and proportion of the polyacrylamide and the variety, size and proportion of the nano particles through complex interaction among the components. The composite nano oil displacement agent is high in stability, and can change the wettability of rock, remarkably reduce the surface tension of an oil-water interface, improve the fluid viscosity, peel residual oil and weaken hydrogen bonds, so that the composite oil displacement agent can pass through a micro-capillary pore throat and enlarge the swept area. In the exploitation of low-permeability common thickened oil, the method can obviously improve the recovery efficiency, has excellent technical and economic advantages, and achieves an excellent effect in the practical application of a certain oil field.

The invention discloses 10-hydroxydecanoic acid as well as a preparation method and application thereof, and belongs to the technical field of cosmetics, Candida lipolytica is taken as a fermentation thallus, the Candida lipolytica contains alkane monooxygenase (CYP450), alcohol dehydrogenase (ADH), fatty alcohol oxidase (FAO) and fatty aldehyde dehydrogenase (FALDH), amplification and activation are performed on the Candida lipolytica in a seed culture medium, and the Candida lipolytica is obtained. The method comprises the following steps: inoculating a seed solution into a liquid culture medium, enabling a strain to adapt to a culture environment in advance, reducing strain death caused by environmental mutation after inoculation, inoculating the seed solution into the liquid culture medium, culturing until OD600 is 45-55, realizing high-density enrichment of the strain, being beneficial to increasing the content of CYP450, ADH, FAO and FALDH, adding decane and Tween 80, and enabling the Tween 80 to be capable of increasing the permeability of a cell membrane and increasing the reaction rate, the CYP450 is used for catalyzing decane to carry out hydroxylation, and ADH, FAO and FALDH are used for carrying out oxidation, so that the high-purity 10-hydroxydecanoic acid is obtained.

The invention belongs to the field of fine chemicals and glass storage, and particularly relates to composite acid, a preparation method and a method for cleaning glass rainbow spots through the composite acid. The preparation method comprises the following steps: sequentially adding 3-5% of acetic acid, 0.1-0.2% of fatty alcohol-polyoxyethylene ether, 0.3-0.5% of disodium ethylene diamine tetraacetate, 0.5-1.5% of hydrofluoric acid, 1.5-3% of concentrated sulfuric acid and the balance of water to a proper amount of water, and uniformly mixing to obtain a composite acid; the method comprises the following steps: completely immersing glass with rainbow spots in a thermal composite acid solution, taking out the glass, cleaning the glass until no composite acid solution is left, adding calcium carbonate into waste liquid after cleaning is completed, and discharging the waste liquid after the pH value of the waste liquid is qualified. The glass cleaning agent has an efficient and comprehensive decontamination effect on glass rainbow spots, impurity ions difficult to remove are not introduced, and cleaned glass is high in light transmittance, low in haze and small in damage to a glass body.

This invention relates to an alcohol-based fuel additive, its preparation method, and its application, belonging to the technical field of diesel fuel additives. The additive, by weight, comprises: a mixture of C3-C10 fatty alcohols, fatty acid methyl esters, methyl tert-butyl ether, isoamyl nitrate, dimethyl carbonate, and diesel fuel. The mass ratio of methyl tert-butyl ether to dimethyl carbonate is [value missing]. This invention employs a stepped feeding process, solving the problem of combustion improver failure caused by high shear heat generation by cooling the fuel before adding isoamyl nitrate, and ensuring long-term fuel stability at -10°C using a specific polarity gradient ratio. The fuel prepared by this invention has a high cetane number, strong power, and good anti-stratification effect, making it suitable for compression ignition engines.

The invention discloses supramolecular liquid crystal cream and a preparation method thereof, and relates to the technical field of cosmetic preparation. Comprising 0.3%-2% of supramolecular 10-hydroxydecanoic acid-alpha-bisabolol, 1.5%-5% of an emulsifier, 0.5%-3% of behenyl alcohol, 6.8%-23% of an emollient, 1.5%-6% of an emulsion stabilizer, 0.95%-2.85% of a thickener, 5%-14% of a humectant, 0.6%-1.8% of a preservative and a proper amount of water. Wherein the emulsion stabilizer comprises cetostearyl alcohol, and the mass ratio of the cetostearyl alcohol to the behenyl alcohol is (0.5-2): (0.5-3); the thickening agent comprises at least one of xanthan gum, microcrystalline cellulose / cellulose gum and bentonite. The specific thickening agent and the long-chain fatty alcohol emulsion stabilizer are added into the supramolecular system, so that ordered arrangement of liquid crystals in the supramolecular system is remarkably promoted, the mechanical strength of the lamellar liquid crystals is improved, and the stability of the supramolecular liquid crystal system is further improved.

The application discloses an ant-termite drug barrier system for wood composites and a construction method and application thereof, and relates to the technical field of wood composite ant-termite prevention. The ant-termite drug barrier system comprises a drug active ingredient, a nanoscale modified silicon dioxide carrier, a penetration enhancer, an adhesion enhancer and a stabilizer, and the drug barrier can be efficiently constructed on the surface of the wood composite by a vacuum-assisted impregnation method, and the thickness is controllable and the operation is convenient. The nanoscale modified silicon dioxide carrier is combined with a complex system of sodium fatty alcohol polyoxyethylene ether sulfate and alkyl polyglycoside, so that the permeability and adhesion can be significantly improved. The system is suitable for indoor and outdoor environments, can be coated with a waterproof coating to prolong the service life, and can be conveniently repaired when locally damaged; the drug active ingredient is non-toxic or low-toxic, so that an efficient, durable and environmentally-friendly ant-termite solution for wood composites is provided.

This invention discloses a novel siloxane defoamer synthesis and production process. The defoamer comprises 2-10 parts of hydrophobically treated fumed silica or nano-silica filler, 40-70 parts of a concentrated silicone oil composition, 40-70 parts of high-viscosity polydimethylsiloxane, and 100-150 parts of a fatty alcohol-propylene oxide polymer. Two types of concentrated silicone oil compositions are used, exhibiting diverse structures and chain lengths, totaling 16 types, with clearly defined preparation methods. The filler undergoes special hydrophobication treatment, and the preparation process includes mixing with the concentrated silicone oil, reaction heating, and centrifugal separation. The production process involves mixing the components in a specific ratio, followed by high-speed stirring, addition of oleic acid, and heating to obtain the novel siloxane defoamer. The components of this invention work synergistically to enhance defoaming and foam suppression capabilities. The process is simple, easy to operate and control, and the product has strong versatility. It performs excellently in high-viscosity oily systems, effectively solving foaming problems in various oily systems. It is low-cost, high-efficiency, and its performance is adjustable, exhibiting good stability and compatibility.

The invention relates to a low-VOCs acrylic resin water-based coating and a preparation method thereof, and belongs to the technical field of high polymer materials and chemical coatings, the low-VOCs acrylic resin water-based coating comprises the following raw materials by weight: 40-80 parts of a modified acrylic resin emulsion, 0-30 parts of a pigment filler, 1-5 parts of a water-based auxiliary agent, 10-30 parts of deionized water and 0.5-2 parts of a post-addition cross-linking agent; the modified acrylic resin emulsion is prepared from a core-layer monomer mixture and a shell-layer monomer mixture through a core-shell emulsion polymerization process, and the shell-layer monomer mixture comprises a functionalized internal plasticizing monomer and a self-crosslinking functional monomer. The monomer is prepared by reacting long-chain fatty alcohol with diisocyanate to prepare an isocyanate-terminated prepolymer and then grafting the isocyanate-terminated prepolymer with a hydroxyl-containing acrylic monomer, a long-chain alkyl structure provided by the long-chain fatty alcohol plays a remarkable internal plasticizing role on the surfaces of latex particles, and the friction force between polymer chain segments is effectively reduced.

The invention discloses a composite thermal insulation material suitable for A-grade fire prevention and a preparation method thereof, relates to the technical field of building composite materials, and solves the problem that an existing building material is difficult to meet the comprehensive requirements of fire prevention, thermal insulation and freezing resistance in alpine regions. Comprising quick-hardening sulphoaluminate cement, silica powder, MDI-50, polyether polyol, silane coupling agent modified basalt fibers, silane coupling agent modified polyvinyl alcohol fibers, triethanolamine, a thickening foam stabilizer, fatty alcohol ether sodium sulfate and 1-1.5 parts of a calcium nitrite antifreezing agent. The thickening foam stabilizer is a compound of hydroxypropyl methyl cellulose and polyether modified silicone oil. The material can be prepared without special construction equipment, can be accurately adapted to construction scenes of traffic inconvenience and energy shortage in alpine regions, and has extremely high engineering application value and popularization prospect.

The application provides a low pour point nonionic surfactant and a preparation method thereof, which is composed of the following raw materials in parts by weight: C13 isomeric fatty alcohol polyoxyethylene ether 18-30 parts, reverse EO / PO block copolymer 10-20 parts, sodium diisooctyl sulfosuccinate 1-7 parts, sodium dodecyl sulfonate 1-5 parts, glyceryl laurate 1-5 parts, isopropyl alcohol 5-10 parts, and propylene glycol 1-5 parts; the formula is constructed based on a nonionic surfactant as a main body, ion surfactants and additives are introduced, and the system is optimized, so that a low pour point nonionic surfactant with excellent adsorption capacity and decontamination capacity is obtained.

This invention discloses a copper-based catalyst supported on macroporous alumina, its preparation, and its application. The macroporous alumina-supported copper-based catalyst comprises a macroporous alumina support and copper oxide and lanthanum oxide supported on its surface. The macroporous alumina-supported copper-based catalyst is particulate with a specific surface area of ​​250-500 μm. 2 / g, pore volume 1.0~2.0 cm³ 3 The copper-based catalyst supported on macroporous alumina has an average pore size of 16-30 nm. The content of each component in the catalyst, expressed as a mass percentage, is as follows: macroporous alumina support 79%-98.9%, copper oxide 0.1%-6%, and lanthanum oxide 1%-15%. The macroporous alumina-supported copper-based catalyst of this invention exhibits high catalytic activity and selectivity for higher alcohols in the ethanol-to-higher alcohol reaction, particularly showing higher selectivity for C6-C10 fatty alcohols.

The invention belongs to the technical field of detergent compositions, and discloses a detergent composition and a preparation method thereof, and the composition comprises the following components in percentage by mass: 0.5-3% of organic salt, 0.5-3% of a surfactant, 0.5-3% of a preservative, and the balance of water. 0.2%-8% of monoethanolamine; 25%-60% of a total surfactant; 4%-15% of low carbon alcohol; and the balance of deionized water. Wherein in the total surfactant, the content of sodium alkyl sulfate and the content of sodium ethoxylated fatty alcohol sulfate are both 0. In the detergent composition disclosed by the invention, the surfactant does not contain sodium alkyl sulfate and ethoxylated sodium alkyl sulfate, so that the low-temperature stability of the detergent composition is enhanced, the detergent composition is not gelatinized due to a low-temperature environment, and the detergent composition does not crust after water loss, can keep a clear flowable state and avoids reducing the cleaning effect; and even a feeding port is blocked in the automatic feeding device, so that the use is influenced.

The invention provides a self-assembled surfactant as well as preparation and application thereof. The preparation method comprises the following steps: adding an anionic surfactant and a nonionic surfactant into a buffer solution, uniformly mixing, and heating until the anionic surfactant and the nonionic surfactant are completely molten, so as to obtain the self-assembled surfactant. Wherein the anionic surfactant is one or more of lignosulfonate, secondary alkyl sulfonate and alpha-olefin sulfonate; the nonionic surfactant is one or more of polyethylene glycol, fatty alcohol-polyoxyethylene ether, polyoxyethylene alkyl ether and polyoxyethylene nonyl phenyl ether. The specific anionic surfactant and the nonionic surfactant are compounded, self-assembly is completed through heating, and the obtained self-assembly surfactant can remarkably improve the enzymolysis efficiency of lignocellulose.

The invention relates to a halogen-free heavy oil removal surfactant and a preparation method thereof, and belongs to the technical field of surfactants. The heavy oil removal surfactant is prepared from fatty alcohol-polyoxyethylene ether, hydrophilic alkyl quaternary ammonium salt, a glycosyl nonionic surfactant and an alcohol compound, the glycosyl nonionic surfactant is prepared by sequentially carrying out hydrophobic amidation and hydrophobic epoxy addition on lactobionic acid lactone; the heavy oil removal surfactant is good in oil removal effect, safe, free of halogen and small in corrosivity, and the use performance is improved through compound use of the fatty alcohol-polyoxyethylene ether, the hydrophilic alkyl quaternary ammonium salt and the glycosyl nonionic surfactant.

The present application relates to the field of detergent, disclose a kind of weak acid low foam liquid detergent composition, total active content is 15~30wt%, including the following ingredients: modified oil ethoxylate sulfonate 5~15wt%, fatty alcohol polyether type nonionic surfactant 4~8wt%, thickening agent polyethylene glycol double fatty acid ester 0.5~2.0wt%, long chain fatty acid 0.5~1.5wt%, base neutralizer, other auxiliary 0~10wt%, solvent.The liquid detergent composition of the present application is weakly acidic, therefore has lower irritation, more skin-friendly, not hurt hand characteristics, on this basis, the liquid detergent composition of the present application also successfully realizes that fatty acid is introduced into weakly acidic system, and modified oil ethoxylate sulfonate is introduced into weakly acidic system without reducing the viscosity of system, so that weakly acidic liquid detergent composition has low foam specific and ideal viscosity.

The application discloses an aluminum alloy cleaning agent and a preparation method and application thereof, and belongs to the technical field of cleaning agents. The aluminum alloy cleaning agent comprises the following raw materials in parts by weight: 7-12 parts of ionic surfactant A, 3.5-6 parts of non-ionic surfactant B, 0.2-3 parts of a dispersing solubilizing agent, 0.8-1.5 parts of a penetrating agent, 3-6 parts of a chelating agent, 0.2-2 parts of an inhibitor, 0.01-0.05 parts of a defoaming agent and 67-83 parts of deionized water. The non-ionic surfactant A comprises at least one of a fatty alcohol polyoxyethylene ether and a nonylphenol polyoxyethylene ether. The non-ionic surfactant B comprises a sorbitan fatty acid ester. The dispersing solubilizing agent comprises a polyhydric alcohol. The aluminum alloy cleaning agent can effectively improve cleaning power, avoid aluminum alloy tarnishing, and is environmentally friendly. The application further provides a preparation method and application of the aluminum alloy cleaning agent.

The invention discloses a method for preparing a water-based antioxidant emulsion, which comprises the following steps: (1) mixing an effective component and hydrophilic polyether modified silicone oil, stirring and ball-milling at normal temperature, adding polyethylene glycol, and homogenizing at high speed at normal temperature to form a uniform mixed system; (2) stirring and mixing the mixed system, fatty alcohol-polyoxyethylene ether and water, performing three-stage high-pressure homogenization at normal temperature, adding cocamidopropyl betaine, and performing constant-pressure high-pressure homogenization at normal temperature to obtain a water-based antioxidant emulsion; wherein the effective component is one or more of an antioxidant, an ultraviolet light absorber or a light stabilizer. According to the method for preparing the water-based antioxidant emulsion, the water-based antioxidant emulsion has applicable particle size and good particle size distribution and is good in dispersion uniformity and stability; the preparation method is simple and wide in applicability.

The present invention relates to a temperature-responsive in situ gelling composition comprising an amphiphilic triblock copolymer of polyoxyethylene-polyoxypropylene-polyoxyethylene (PEO-PPO-PEO), a water-soluble hydrophilic polymer, wherein the composition further comprises at least one lipid agent. The lipid agent is selected from the group consisting of a phospholipid, a sterol, a glyceride, a fatty acid or ester and derivative, a fatty alcohol, a cholesterol and derivative or a combination of more than one lipid agent. The present invention further relates to a vascular embolization agent comprising the temperature-responsive in situ gelling composition.

The present invention relates to the technical field of textile finishing. Specifically disclosed are a fabric restorer for old clothes, a preparation method therefor, and a method for using same. The fabric restorer for old clothes comprises the following components in parts by weight: 15-25 parts of fluoroalkyl-modified amino silicone oil, 5-10 parts of polyether-modified vinyl silicone oil, 2-5 parts of fatty alcohol polyoxyethylene ether, 3-10 parts of sodium diisooctyl sulfosuccinate, 0.5-2 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 5-10 parts of glycerol, and 50-75 parts of water, wherein the fluoroalkyl-modified amino silicone oil is mainly prepared from the following raw materials in parts by weight: 90-100 parts of a first organic silicon monomer, 1-5 parts of a first silane coupling agent, 1-5 parts of a fluoroalkyl monomer, and 0.001-0.2 parts of a first catalyst, the first silane coupling agent being a methoxysilane coupling agent or an ethoxysilane coupling agent, and the fluoroalkyl monomer being selected from a fluorine-containing acrylate or a fluorine-containing methacrylate. The fabric restorer for old clothes of the present invention can form a micro-coating membrane on the surfaces of the fibers of old clothes, thereby improving the strength and elasticity of the old clothes and deepening the color thereof. Moreover, the fabric restorer for old clothes of the present invention can achieve a renewal treatment by means of soaking or spraying at room temperature, and is thus convenient to use.

ANHYDROUS HAIR TREATMENT COMPOSITION Comprising a Cationic Surfactant and a Fatty Alcohol This disclosure relates to an anhydrous hair treatment composition comprising: (a) one or more vegetable oils, one or more of which is castor oil; (b) one or more cationic surfactants; (c) one or more fatty alcohols; and (d) optionally, one or more sensory-active agents. In addition, the composition is substantially free of monoalcohols and polyhydric alcohols having 1 to 6 carbon atoms and substantially free of alpha-hydroxy acid esters and acetals and ketals having 10 carbon atoms or fewer. The anhydrous hair treatment composition is particularly useful in hair treatment processes. Figure for abstract: none

COMPOSITION COMPRISING A PARTICULAR SILICONE EMULSION, A CATIONIC POLYSACCHARIDE, A SOLID FATTY ALCOHOL, AND A CATIONIC SURFACTANT. The present invention relates to a composition for treating keratinous fibers, and in particular human keratinous fibers such as hair, comprising a specific oil-in-water silicone emulsion, at least one cationic polysaccharide, at least one fatty alcohol, and at least one cationic surfactant. The invention also relates to a method for treating keratinous fibers, preferably for washing and / or revitalizing keratinous fibers, comprising applying a composition according to the invention to the keratinous fibers. Figure for the abstract: none

This invention relates to a high-necked fabric, its finishing process, and garments containing the high-necked fabric. The finishing process includes the following steps: drying and sieving washed leaves and branches of *Nelumbo nucifera* to obtain dried material; subjecting the dried material to pyrolysis treatment; cooling and grinding to obtain *Nelumbo nucifera* biochar; the raw materials for preparing the finishing reagent, by weight, include 15-25 parts of aqueous polyurethane emulsion, 6-12 parts of *Nelumbo nucifera* biochar, 4-8 parts of hydroxyl silicone oil, 1-3 parts of citric acid, 3-8 parts of nano-titanium dioxide, 2-5 parts of chitosan quaternary ammonium salt, 1-3 parts of silane coupling agent, 1-2 parts of fatty alcohol polyoxyethylene ether, 1-3 parts of sodium hexametaphosphate, 1-5 parts of acetic acid, and 50-60 parts of deionized water. The high-necked fabric of this invention has good abrasion resistance, waterproof performance, and antioxidant properties, and can be used for the collars or cuffs of down garments and sportswear, with broad market application prospects.

The invention provides a recombinant Yarrowia lipolytica. The recombinant Yarrowia lipolytica comprises a heterologous polynucleotide encoding a fusion protein. The fusion protein comprises a first amino acid sequence and a second amino acid sequence. The first amino acid may be homologous to the amino acid sequence of 3-ketoacyl CoA thiolase (3KAT), The second amino acid sequence may be homologous to the amino acid sequence of a fatty acyl-CoA reductase (FAR). Also provided is a method for producing one or more fatty alcohols by the recombinant Yarrowia lipolytica and a method for preparing the recombinant Yarrowia lipolytica.