108 results about "Diethyl ester" patented technology

The application belongs to the technical field of regenerated polyester, and particularly relates to a recycling method of waste polyester textiles, which comprises the following steps: decolorizing colored waste polyester textiles by using a decolorizing agent, wherein the decolorizing agent is one or more of dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate; depolymerizing the decolorized polyester textiles by using a depolymerizing agent to obtain terephthalate, wherein the depolymerization rate of the decolorized polyester textiles is 98.0-100%; converting the terephthalate into DMT first, and then performing a re-polymerization reaction on the DMT, ethylene glycol, a catalyst and a functional additive to obtain regenerated PET. The application adopts a process of decolorizing first and then depolymerizing, and the decolorizing and depolymerizing are coordinated, so that the process is simplified, the energy consumption and pollution are reduced, and the economy and sustainability of the recycling of waste polyester textiles are improved.

This invention provides an amino-modified copper-silicon catalyst, its preparation method, and its application, belonging to the field of catalyst technology. The copper oxide particles in the copper-silicon catalyst provided by this invention have a small particle size and high dispersibility on the silica surface, which can significantly improve the catalytic activity of the copper-silicon catalyst, thereby improving the selectivity of ethanol in the hydrogenation of diethyl oxalate. Example results show that, at 180℃ and a hydrogen-to-ester ratio of 25, the copper-silicon catalyst provided by this invention achieves a diethyl oxalate conversion rate of 96.66% and an ethanol selectivity of 84.72% for diethyl oxalate. Furthermore, after 270 hours of stable reaction, the diethyl oxalate conversion rate still reaches 94.7%, and the ethanol selectivity still reaches 66.29%, indicating that the copper-silicon catalyst does not show significant deactivation.

The application discloses a preparation method of a key intermediate of dapagliflozin, and belongs to the technical field of preparation of medical intermediates. The preparation method of the key intermediate of dapagliflozin comprises the following steps: 1, 1-ethoxy-4-methylbenzene is prepared by using p-cresol, sodium hydroxide and diethyl sulfate; 2, (4-ethoxybenzyl) phenyl sulfide is prepared by using 1-ethoxy-4-methylbenzene, thiophenol, a palladium catalyst, an alkali and an oxidant; 3, 1-benzyl-4-ethoxybenzene is prepared by using (4-ethoxybenzyl) phenyl sulfide under a hydrogen atmosphere; 4, 4-ethoxy-2'-chlorobenzhydrol is prepared by carrying out chlorination reaction on 1-benzyl-4-ethoxybenzene; and 5, 5-bromo-2-chloro-4'-ethoxybenzhydrol is prepared by carrying out bromination reaction on 4-ethoxy-2'-chlorobenzhydrol. The yield and purity of 5-bromo-2-chloro-4'-ethoxybenzhydrol prepared by the method are higher, the process is safer, and the production cost is reduced.

The present invention relates to a method of adding an isocitrate lyase specific inhibitor to a lactic acid fermentation process to block the production of succinic acid as a byproduct of fermentation. The specific inhibitor includes a combination of one or more of glycolic acid methyl ester, malonic acid dimethyl ester, hydroxymalonic acid diethyl ester, 3-nitropropionic acid ethyl ester, mercuric chloride, or 5,5'-dithiobis(2-nitrobenzoic acid) to effectively reduce the amount of succinic acid in the lactic acid.

The invention discloses the field of organic electronic materials, and particularly discloses a chain terminating molecule for straight-chain polyphosphocarbazole and a polymerization terminating method. The chain termination molecule is a carbazole derivative containing boronic acid pinacol ester, the core structure is'carbazole matrix-linking group-diethyl phosphate group ', and the linking group can be a butyl chain or a benzene ring; after a chain termination molecule is synthesized through a three-step reaction, a Suzuki coupling reaction is utilized to completely replace a residual Br site of straight-chain polyphosphocarbazole, and polymerization termination is realized. The bromine residual quantity of the product is less than or equal to 0.01 wt%, the molecular weight is stabilized at 6-7 monomeric units, and the molecular weight change rate is less than or equal to 5% after the product is dried and stored at 25 DEG C for 6 months; when the material is used as a hole transport layer, the laboratory small-area film thickness deviation is less than or equal to 10%, the corresponding perovskite assembly efficiency is greater than or equal to 23%, the 1000-hour attenuation rate is less than or equal to 15%, the defects of self-agglutination, poor stability and device performance fluctuation of the existing material are solved, the process is simple, and industrialization is easy.

The invention discloses a tetrazine probe synthon and a preparation method and application thereof.The preparation method comprises the following steps that under the inert atmosphere, diethyl cyanomethylphosphonate, 3-hydroxypropionitrile, 3-mercaptopropionic acid and hydrazine hydrate are mixed and then react at the room temperature, a sodium nitrite solution is added after the reaction is finished, then acid is continuously added till the reaction system reaches acidity, and a tetrazine probe synthon product is obtained; continuously reacting to obtain an intermediate; and dissolving the intermediate in a solvent in an inert atmosphere, adding triethylamine, slowly adding methanesulfonyl chloride, and reacting at room temperature to obtain the tetrazine probe synthon shown in the formula I. The invention further discloses a preparation method of the tetrazine probe synthon. The tetrazine probe synthon provided by the invention can perform series Heck reaction and HWE reaction, so that controllable combination of functional groups on two sides of a tetrazine coupling probe is realized under mild reaction conditions, and the functional groups on two sides are designed according to actual requirements to regulate and control photophysical properties of the probe. A brand new way is provided for developing a high-performance biological orthogonal fluorescent probe.

The application discloses a toughened composite polyurethane impact-resistant material based on dynamic covalent bond energy regulation, and belongs to the technical field of polyurethane materials. A double dynamic covalent network containing DA bonds and disulfide bonds is constructed by reacting polyurethane prepolymer, furfurylamine, cystine diethyl ester and bismaleimide, then nano molybdenum disulfide is modified by silane, then a metal-polyphenol / polymer composite interface layer is constructed on the surface of aramid fiber by tannic acid-iron complex and polyethyleneimine, finally, the components are mixed, impregnated and hot-pressed to obtain the composite polyurethane material. The application effectively dissipates impact energy through the reversible rupture and recombination of dynamic covalent bonds, and enhances the interfacial bonding force between components by using multiple interface modification, so that the material has excellent impact resistance, high strength, high ductility and efficient self-repairing function, solves the problems of easy damage of the interface of traditional composite materials, insufficient impact resistance and irreversible damage, and has wide application prospect in the fields of safety protection and buffer components.

The invention discloses a benzoxphosphine ligand and a complex and application thereof. The structure of the benzoxphosphine ligand is shown as a formula (I), in the formula (I), R1 is alkyl or aryl substituted oxazolidinyl or imidazoline, R2 is alkyl and / or aryl, and R3 is at least one of fluorine, carbazolyl and 2, 6-dimethoxyphenyl. According to the benzoxphosphine ligand disclosed by the invention, the metal iridium complex can be used as a catalyst to be applied to an asymmetric hydrogenation reaction of alpha-phenyl vinyl diethyl phosphate, and has excellent activity and relatively high enantioselectivity; moreover, the benzoxphosphine ligand disclosed by the invention can be directly synthesized from simple and easily available chiral aldehyde, and the preparation method is simple and easy to operate.

The invention relates to a waterborne polyurethane emulsion as well as a preparation method and application thereof. The preparation raw materials of the waterborne polyurethane emulsion comprise the following components: an isocyanate monomer, flame-retardant polyether polyol, polydimethylsiloxane, a hydrophilic chain extender and a small molecular alcohol chain extender. The flame-retardant polyether polyol is a polymer formed by [(bis (2-hydroxyethyl) amino) methyl] diethyl phosphate and an epoxy compound. According to the synthesized waterborne polyurethane coating, the synergistic effect of nitrogen, phosphorus and silicon is utilized, flame propagation can be effectively inhibited, the molten drop phenomenon can be remarkably inhibited, and the limit oxygen index and the vertical combustion grade of the material are greatly improved.

The application discloses a method for preparing N-ethoxyl oxalyl alanine ester by using a dynamic tubular reactor, which comprises the following steps: (1) reacting L-alanine, diethyl oxalate and 4-dimethylaminopyridine in the dynamic tubular reactor; (2) removing light components from the reaction solution; (3) reacting the reaction solution after removing the light components and ethanol in the dynamic tubular reactor; and (4) obtaining N-ethoxyl oxalyl alanine ester after removing the light components. Compared with traditional kettle reactors and tubular reactors, the method adopts the dynamic tubular reactor to prepare N-ethoxyl oxalyl alanine ester, and through the regulation of reaction parameters, the selectivity of key by-products N-oxamide and double N-oxamide can be effectively controlled below 2%. The process has the advantages of high reaction yield, high degree of continuous operation, significantly shortened reaction time and no use of high-toxicity materials such as benzene.

This invention discloses a method for synthesizing p-methylaminobenzoylglutamate diethyl ester. Using p-methylaminobenzoic acid and diethyl glutamate hydrochloride as raw materials, and carbonyl diimidazole as an ester activator, the specific synthesis method involves dissolving carbonyl diimidazole in a solvent under inert gas protection, stirring, adding p-methylaminobenzoic acid to generate the active ester, then adding diethyl glutamate hydrochloride and reacting. The mixture is then concentrated, cooled, water is added dropwise, filtered, and dried to obtain p-methylaminobenzoylglutamate diethyl ester. This method is simple, convenient, low-cost, and has a high yield, showing great promise for industrialization.

The invention discloses an electrolyte for a high-silicon-content lithium ion battery and a preparation method and application thereof.The electrolyte comprises a lithium salt, a film-forming additive, a nano additive and an organic solvent, the concentration of the lithium salt in the electrolyte is 1-2 mol / L, the film-forming additive is difluoromethyl diethyl phosphate, the mass content of the film-forming additive in the electrolyte is 3%-7%, and the mass content of the nano additive in the electrolyte is 1%-2%. And the nano additive is NiCo-MOF nano particles, and the mass content of the nano additive in the electrolyte is 0.3%-1.0%. The film-forming additive and the nano additive have a synergistic effect, so that the film-forming capability and the electrolyte retention capability of the negative electrode can be improved, the interface stability of the high-content silicon negative electrode is improved, and the capacity retention rate of the lithium ion battery is improved.

The invention relates to an internal sulfonamide compound and a preparation method thereof. The invention relates to a preparation method of a sulfamide compound, which comprises the following steps: mixing an aminomalonic acid diethyl ester compound or an N-benzyl malonic acid monomethyl ester monoamide compound, a beta-aryl vinyl sulfonyl fluoride compound and MS, adding a solvent and a base catalyst, reacting at room temperature for 12-24 hours, separating and purifying to obtain the amide compound. The sulfamide compound and the preparation method thereof have the advantages of being simple in method, free of transition metal catalysis, wide in substrate range, mild in reaction condition, good in universality and the like.

A biphenylthiourea carboxylic acid metal organic framework crystal material and a preparation method and application thereof.The material has the following chemical formula: {[Zn4O(L)3]·DMF·H2O} n , wherein L is a 6-thio-6,7-dihydro-5H-dibenzo[d,f][1,3]diazepine-3,9-dicarboxylate divalent anion, and n is a degree of polymerization.The metal organic framework crystal material of the present application is synthesized by a solvothermal method, is simple to operate, has low cost, high yield, and is easy to mass industrial production.The prepared metal organic framework crystal material has a high specific surface area (a BET specific surface area of 594 m 2 / g), and an adsorption amount of CO2 of 46.0 cm 3 / g at 1 atm and 273 K.The biphenylthiourea carboxylic acid metal organic framework crystal material of the present application can efficiently catalyze a Friedel-Crafts alkylation reaction of substituted indole and substituted trans-nitrostyrene to generate an indole 3-substituted derivative, and can also efficiently catalyze a Michael addition reaction of diethyl malonate and substituted trans-nitrostyrene, both of which have mild conditions, and the catalyst can be recycled with almost no activity loss, and are good heterogeneous catalysts.

The invention relates to the technical field of synthesis of high molecular material sulfone polymers, in particular to a halogen-free environment-friendly end-capping reagent and a method for carrying out end capping on sulfone polymers by using the halogen-free environment-friendly end-capping reagent. At least one halogen-free environment-friendly end-capping reagent selected from methyl ethyl carbonate, diethyl carbonate, dimethyl carbonate, trimethyl carbonate, propylene carbonate and ethylene carbonate is introduced; and at least one ionic liquid selected from the group consisting of 1-ethyl-3-methylimidazole acetate, 1-ethyl-3-methylimidazole methane sulfonate, tetrabutylammonium p-toluenesulfonate and choline acetate is used as a catalyst. According to the method, the problems of environmental pollution and toxic residues caused by a traditional halogen end-capping reagent are effectively avoided. The invention also keeps the bisphenol monomer slightly excessive. And the prepared polysulfone resin has the advantages of obviously enhanced terminal group stability, pure color, high transparency and low chlorine content, and is suitable for the high value-added application fields of medical instruments, food contact materials, electronic devices and the like.

The application discloses a kind of 1,2-naphthalene dicarboxylic acid diethyl compound photocatalytic synthesis method, it includes the following steps: styrene compound, alpha-diazo iodonium salt and catalyst are dispersed in organic solvent, then coupling cyclization reaction is carried out under light, obtains 1,2-naphthalene dicarboxylic acid diethyl compound.The 1,2-naphthalene dicarboxylic acid diethyl compound photocatalytic synthesis method of the application has the advantages that raw material is cheap and easy to obtain, simple and efficient, reaction condition is mild, atom economy is high, product is easy to purify, production cost is low, green and safe, suitable for large-scale industrial production.

The application discloses a preparation method of a phenopicolinic acid intermediate and the intermediate. The preparation method comprises the following steps: under the action of an alkali, compound 2 is reacted with 1,3-propanedione dicarboxylic acid diethyl ester in a solvent to obtain compound 3 as shown in the figure. The intermediate involved in the preparation method is protected by triphenylmethyl, can be purified through recrystallization, has high yield, the reagent used is safe, the operation is simple, the production cost is low, the yield and purity of the obtained product are high, and the method is beneficial to industrial mass production.

The application discloses a kind of 3-(cholic acid pentanoyl amide) cyclobutane-1,1-dicarboxylic acid purification method, belong to the technical field of pharmaceutical chemistry intermediate purification.The method includes: (1) its precursor diethyl ester is hydrolyzed in methanol and / or acetonitrile, concentrated after dissolving with water, with organic solvent extraction is discarded organic phase, water phase is adjusted to 2-4 to pH, again with organic solvent extraction, concentrated and obtained crude product;(2) the crude product is dissolved in alcohol solvent, after filtration, ester solvent is added to crystallize, alcohol ester volume ratio 1:2-1:10, filtration, washing, drying.The application removes unreacted ester, monocarboxylic acid byproduct and cholic acid analogue amide and other impurities by alkaline hydrolysis combined with "alkali dissolving acid extracting" and "alcohol dissolving-ester crystallizing" recrystallization.The product obtained by the method has HPLC purity ≥98.2%, yield ≥80%, and the process is stable, simple to operate, suitable for large-scale production.

The utility model discloses a diethyl carbonate loading cooling and heat preservation device which comprises a bottom plate, a plurality of first cooling plates transversely arranged at the top end of the bottom plate, a plurality of second cooling plates longitudinally arranged at the top end of the bottom plate, a first water inlet pipe and a first water outlet pipe, the first water inlet pipe and the second water outlet pipe are connected with each second cooling plate, the first water outlet main pipe is connected with the first water outlet pipes jointly, the second water outlet main pipe is connected with the second water outlet pipes jointly, and the first water inlet main pipe is connected with the water inlet ends of the first water inlet pipes jointly. The first water inlet main pipe is connected with the water inlet ends of the first water inlet pipes, the second water inlet main pipe is connected with the water inlet ends of the second water inlet pipes, the first water tank is connected with the first water outlet main pipe and the second water outlet main pipe, the cooler is connected with the first water tank, and the first water inlet main pipe and the second water inlet main pipe are both connected with the second water tank. According to the utility model, the purpose of cooling and heat preservation when diethyl carbonate is loaded and transported can be achieved.

The application discloses a liquid titanium-based polyester catalyst and a preparation method thereof, and relates to the field of titanium-based catalysts. The catalyst takes titanate as a main raw material and is prepared through modification of an ionic liquid coordination modification; the modified ionic liquid is prepared through quaternary ammonium and ion exchange reactions and is composed of imidazole cations, phosphoric acid groups and bistrifluoromethylsulfonylimide anions. The preparation method comprises the following steps: first, an intermediate chloride is prepared through quaternary ammonium reaction of N-methyl imidazole and 3-chloropropyl phosphoric acid diethyl ester; then, the modified ionic liquid is obtained through ion exchange reaction to replace anions; finally, the modified ionic liquid is subjected to coordination reaction with the titanate to prepare the liquid titanium-based polyester catalyst. The liquid titanium-based polyester catalyst prepared by the application has excellent hydrolysis resistance, catalytic activity and thermal stability performance and is suitable for the industrial production requirements of the polyester.

The invention provides a preparation method of diethyl malonate and a preparation method of valproic acid, and belongs to the technical field of organic synthesis. According to the method, diethyl carbonate and ethyl acetate are taken as initial raw materials, the ethyl acetate has three alpha-H and loses one alpha-H under the attack of strong base, so that ethyl acetate enol negative ions are formed, and ethyl acetate carbon negative ions are obtained through rearrangement; carrying out nucleophilic addition on carbonyl of diethyl carbonate by using the ethyl acetate carbon negative ions to obtain an addition intermediate, and then removing ethanol negative ions from the addition intermediate to obtain diethyl malonate; by controlling the reaction temperature, ethanol generated in the reaction process is continuously distilled out, so that the reaction is carried out in the forward direction, and side reactions are reduced to the greatest extent; as the condensation catalyst used in the invention has strong nucleophilicity and alkalinity, the use of the aprotic solvent can avoid the consumption of the condensation catalyst by the solvent.

The invention discloses a flame-retardant gel polymer electrolyte and a preparation method and application thereof, and belongs to the technical field of supercapacitors. The method comprises the following steps: adding iodine diethyl methyl phosphate and 1, 3-propane sultone into an organic solvent containing 1, 3-dioxolane, and uniformly mixing to obtain a mixed solution; adding lithium salt into the mixed solution to obtain a precursor solution; and dropwise adding the precursor solution on the surface of an electrode to assemble a supercapacitor, and heating to form the flame-retardant gel polymer electrolyte on the surface of the electrode in situ. According to the flame-retardant gel polymer electrolyte prepared by the method, the flame-retardant characteristic of the electrolyte can be remarkably improved, the combustion risk is fundamentally eradicated, a good solid-liquid mixed interface can be formed with an electrode, and high ionic conductivity and low interface impedance are guaranteed.

The invention provides a thermal expansion material, a resin liquid bridge plug and a deep shale gas shaft pressure-bearing plugging method. The thermal expansion material comprises a combination of any two or three of oxidative polymerization grafted 3-alkylthiophene modified thermal expansion microspheres, glycidyl methacrylate grafted modified thermal expansion microspheres and cinnamyl nitrile and diethyl fumarate cross-linked thermal expansion core-shell microspheres; by taking the total weight of the thermal expansion material as 100%, when the thermal expansion material comprises an oxidative polymerization grafted 3-alkylthiophene modified thermal expansion microsphere, a glycidyl methacrylate grafted modified thermal expansion microsphere and a cinnamyl nitrile and diethyl fumarate cross-linked thermal expansion core-shell microsphere, the contents of the three are respectively 15-55%, 25-75% and 30-65%. The thermal expansion material has good compatibility with resin liquid bridge plugs, can be uniformly dispersed in resin, does not agglomerate or settle, and can effectively inhibit the shrinkage of the resin through heat release expansion after solidification.

This invention discloses an ABS surface scratch repair coating and its preparation method, relating to the field of coating technology. The ABS surface scratch repair coating is prepared by reacting 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane 3,9-dioxide with formic acid to obtain intermediate 1; reacting intermediate 1 with diethyl maleate to obtain intermediate 2; reacting intermediate 2 with ethylenediamine to obtain a polyamino phosphorus-containing curing agent; reacting p-hydroxybenzoic acid with 2-chlorocyclopentanone to obtain cyclopentanone benzoate; reacting nano-cerium dioxide sequentially with 3-chloropropyltrimethoxysilane and cyclopentanone benzoate to obtain modified nano-cerium dioxide; and mixing epoxy resin, polyamino phosphorus-containing curing agent, puerarin, and modified nano-cerium dioxide with acetone as a diluent to obtain the ABS surface scratch repair coating. The ABS surface scratch repair coating prepared by this invention has superior weather resistance and flame retardant properties.

The application discloses a maleic acid diethyl ester rectification system, which comprises a rectification bin, an evaporation treatment bin and a dehydration bin, the evaporation treatment bin surrounds the tower middle and the tower bottom of the rectification bin, the dehydration bin is installed and surrounds the tower top of the rectification bin, the rectification bin is externally provided with a heat exchange cavity, a heat source is installed at the bottom of the heat exchange cavity, a heat transfer substance capable of diffusing in the heat exchange cavity is filled in the heat exchange cavity, the evaporation treatment bin is installed inside the heat exchange cavity, the evaporation treatment bin comprises a lower evaporation chamber, a plurality of evaporation pipes and a falling film coating chamber, the rectification bin tower bottom is connected with the falling film coating chamber in communication through a material collecting pump, the lower bottom plate of the falling film coating chamber is provided with a coating groove, the evaporation pipes penetrate through the falling film coating chamber and are connected with the dehydration bin, at least one isolation pipe is arranged in the dehydration bin, a steam permeation membrane pipe connected with the evaporation pipe is installed in the isolation pipe, the rectification and the recycling and separation of subsequent materials are highly integrated, the materials can be efficiently separated and treated by the system, the rectification system is simplified as a whole, and the setting and use costs of the rectification system are reduced.

The application relates to the technical field of functional fabric, and particularly discloses a high-flame-retardant heat-insulating protective fabric and a preparation method thereof. The method comprises the following steps: mixing and weaving aramid fibers and polyester fibers to obtain a base cloth, dipping the base cloth into a silicon dioxide-graphene graft copolymer dispersion liquid, double-dipping and double-rolling, and drying to obtain a flame-retardant heat-insulating layer. The inorganic flame retardant nano silicon dioxide and graphene oxide have good heat-insulating and flame-retardant effects, and the organic flame retardant N,N-bis(2-hydroxyethyl) amino methylene phosphonic acid diethyl ester has a synergistic effect on the base body, so that the flame-retardant heat-insulating property is very high. Cotton fibers and protein fibers are mixed and woven to obtain a comfortable layer. The flame-retardant heat-insulating layer and the comfortable layer are stitched to obtain the high-flame-retardant heat-insulating protective fabric. The obtained fabric is soft and comfortable, has excellent air permeability, and has good comfort, and is an excellent flame-retardant heat-insulating protective fabric.

The invention provides a method for treating excessive halogen in an ionic photoacid generator, which comprises the following steps: adding a crude product of the ionic photoacid generator to be treated into a reactor, adding a solvent, stirring, then adding a sulfate reagent, reacting, then adding an anion raw material, continuing reacting, and after the reaction is completed, carrying out post-treatment to obtain the excessive halogen in the ionic photoacid generator. The ionic photoacid generator with qualified halogen content is obtained. The halogen content is less than or equal to 10 ppm. And the sulfate reagent is dimethyl sulfate, diethyl sulfate, dipropyl sulfate or dibutyl sulfate. The method for treating the residual halogen in the ionic photoacid generator is mild in reaction condition, simple in technological process, environment-friendly and high in yield, and can be widely applied to preparation of iodonium salt and sulfonium salt photoacid generators.

The invention discloses a high-elasticity antibacterial fiber and a preparation method thereof, and relates to the technical field of high polymer materials. When the high-elasticity antibacterial fiber is prepared, N, N-bis (2-ethoxyl) aminomethylene diethyl phosphonate, allyl glycidyl ether and a phosphazene alkali P4-t-Bu solution are subjected to a reaction in an argon atmosphere, and polyether polyol is prepared; the preparation method comprises the following steps: carrying out polycondensation on polyether polyol, isophthalic acid and 1, 3-propylene glycol in a nitrogen atmosphere to prepare a polyether ester elastomer; the preparation method comprises the following steps: modifying a polyether ester elastomer and cysteamine hydrochloride through ultraviolet irradiation, reacting with 1H-pyrazole-1-formamidine hydrochloride to prepare modified polyether ester, and carrying out solution spinning to obtain the modified polyether ester elastic fiber. And reacting the synthesized d-borneol with acryloyl chloride to obtain d-borneol acrylate, and then carrying out impregnation and ultraviolet radiation treatment on the fiber to obtain the high-elasticity antibacterial fiber. The high-elasticity antibacterial fiber prepared by the invention has excellent high elasticity, antibacterial property and flame retardant property.

Every 100 g of the preparation is prepared from the following components by weight: 0.1 to 15.0 g of hiptoline, 2.0 to 14.0 g of coriander seed oil, 2.5 to 5.5 g of isoamyl gallate, 6.0 to 20.0 g of absolute ethyl alcohol, 4.0 to 8.0 g of propylene glycol diethyl ester, 10.0 to 22.0 g of polyethylene glycol-1000 mono-cetyl ether, 0.1 to 3.0 g of magnesium chloride and the balance of water. The drug particle size distribution of the seatoline nano-coated preparation ranges from 5.0 nm to 60.0 nm, the water solubility of the drug is remarkably improved, the large-group drinking water drug administration requirement of a farm is met, the drug effect is remarkably improved, no negative influence is generated on the taste of milk after the seatoline nano-coated preparation is used, and a large problem of clinical popularization of the seatoline nano-coated preparation is solved. The invention further discloses a preparation method, the process is easy to convert, large-scale production is facilitated, and the application prospect is good.

The application discloses a kind of composite solid-state polymer electrolyte and preparation method and application thereof.A kind of composite solid-state polymer electrolyte, preparation raw material includes trifluoromethanesulfonylimide lithium, polyvinylidene fluoride-hexafluoropropylene and modified cellulose derivative;Modified cellulose derivative is obtained by modification of organic modifier to cellulose derivative;Organic modifier includes at least one of N, N-dimethylformamide, dimethyl sulfoxide, ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate, 1,2-dimethoxyethane.The composite solid-state polymer electrolyte of the application has high ionic conductivity, wide electrochemical window, excellent cycle performance of solid-state polymer electrolyte, and the highest stable value of electrochemical window can reach 4.8V.The interaction between modified cellulose derivative and LiTFSI, PVDF-HFP is stronger under high salt system, and the obtained system has higher electrochemical stability.