655results about How to "Suitable for large-scale production" patented technology

The invention relates to the technical field of cationic polymers, in particular to a high-alkali-resistance polyarylene alkylene piperidine cationic polymer as well as a preparation method and application thereof. The preparation method of the high alkali resistance poly (arylene alkylene piperidine) cationic polymer comprises the following steps: carrying out catalytic polycondensation on 1-R6-3-piperidine formaldehyde or salt or hydrate thereof and an aromatic compound to obtain a polymer with a piperidine structure; and further performing ionization reaction to obtain the polyarylene alkylene piperidine cationic polymer. The anion exchange membrane prepared based on the piperidine cationic polymer has ultrahigh alkali resistance and excellent mechanical properties and ionic conductivity, and can be used in the electrochemical energy conversion fields of fuel cells, water electrolysis hydrogen production, carbon dioxide electroreduction, flow batteries and the like, and the separation fields of electrodialysis, water treatment and the like.

The invention belongs to the technical field of lithium batteries, and discloses a lithium nickel manganese oxide positive electrode material, a preparation method thereof and a lithium ion battery. Wherein the lithium nickel manganese oxide positive electrode material has a regular truncated octahedron single crystal structure, and the ratio K of a (111) crystal face orientation parameter to a (100) crystal face orientation parameter in an XRD (X-Ray Diffraction) spectrogram of the lithium nickel manganese oxide positive electrode material is 1-1.6. The lithium nickel manganese oxide positive electrode material provided by the invention has excellent rate capability and cycling stability, and can be well applied to production and manufacturing of lithium ion batteries.

The invention discloses a chain extender containing a hydrazide structure, a preparation method of the chain extender and application of the chain extender in preparation of polyurethane. The chain extender containing the hydrazide structure is prepared by carrying out Michael addition reaction on raw materials including a hydrazide compound and unsaturated carboxylic ester; the Michael addition reaction comprises a reaction process of carrying out addition on amino in the hydrazide compound and a carbon-carbon unsaturated bond in the unsaturated carboxylic ester to generate secondary amine. According to the invention, the problem that a solvent is needed and / or high-temperature melting is needed when a hydrazide compound is used as a polyurethane chain extender can be solved, and a thermoplastic polyurethane elastomer material with relatively high mechanical strength and toughness and excellent mechanical recovery performance can be prepared.

The invention relates to the technical field of electronic elements, in particular to a ternary compound for a memristor array and a preparation method of the ternary compound. The ternary complex comprises A, B and C, A is a guest molecule of a pyridine derivative with an amino terminal, B is a bridging molecule, and C is a host molecule with a cucurbituril structure. A, B and C are self-assembled in an aqueous solution through Van der Waals force and hydrophobic interaction among molecules to form a ternary complex; the host molecule C has a barrel-shaped cavity structure, and the guest molecule A and the bridging molecule B are included in the barrel-shaped cavity structure. The ternary complex forms a supramolecular chain junction at the end part of the graphene electrode, so that the graphene electrode with different gaps can be adapted, and the molecular connection success rate of the array is greatly improved. The preparation method of the ternary complex is simple, convenient, easy to operate and suitable for large-scale production.

The invention discloses a preparation method and application for preparing a cobalt-doped manganese dioxide material by taking Co3 [Co (CN) 6] 2 as a hard template, and belongs to the technical field of electrode material preparation. The preparation method comprises the following steps: firstly, preparing a Co3 [Co (CN) 6] 2 type Prussian blue nano cubic material through a liquid phase coprecipitation reaction method; and then preparing the cobalt-doped manganese dioxide material with a loose porous structure by taking the Co3 [Co (CN) 6] 2 type Prussian blue nano cubic material as a hard template and potassium permanganate as a reaction raw material and adopting a hydrothermal synthesis method, specifically, forming a submicron cube with the size of 200-700nm by combining nanosheets with the thickness of about 10-20nm, and preparing the cobalt-doped manganese dioxide material with the loose porous structure by adopting a hydrothermal synthesis method. And an optimization strategy of Co atom doping of manganese dioxide and nanosheet morphology control is synchronously completed. When the material is used as an electrode material, the conductivity of the manganese dioxide electrode material is greatly improved, the capacity of an aqueous zinc ion battery is improved, and the material has excellent charge-discharge cycle stability.

The invention relates to a cell culture microcarrier as well as a preparation method and application thereof. The cell culture microcarrier comprises a polymer porous microsphere with an inside-outside through pore channel structure. The cell culture micro-carrier comprises a biodegradable micro-carrier and also comprises a non-degradable micro-carrier, so that the growth of cells in the carrier is facilitated, and the mass transfer of nutrient substances and metabolites is also facilitated, thereby promoting the growth of the cells, enabling the cultured cells to keep good activity and function, and being high in proliferation efficiency; the method is suitable for three-dimensional culture of somatic cells, stem cells, tumor cells and the like.

The invention discloses a synthesis method of magnesium L-threonate. The synthesis method comprises the following steps: S1, preparing food-grade calcium L-threonate into an aqueous solution; s2, oxalic acid is added into the aqueous solution according to the molar ratio of 1: 1, and ultrasonic treatment is conducted for 30 min or above; s3, performing water bath treatment on the reaction mixed solution in a water bath at 0-4 DEG C, and then filtering to remove precipitates to obtain an L-threonic acid solution; s4, adding excessive magnesium oxide micro powder into the L-threonic acid solution, reacting, naturally cooling to room temperature, and filtering to remove precipitate to obtain an L-magnesium threonate solution; and S5, adding absolute ethyl alcohol into the magnesium L-threonate solution, then filtering to obtain a precipitate, washing the precipitate with absolute ethyl alcohol, and carrying out vacuum drying until the weight is constant, thereby obtaining the magnesium L-threonate. The invention further discloses the synthesis method and application in the pharmaceutical field. The synthesis efficiency is relatively high, the overall yield is also high, and it can be ensured that the purity of the synthesized magnesium L-threonate is high.

The invention relates to a liquid metal dual-network hydrogel patch with intelligent adhesion as well as a preparation method and application thereof, and belongs to the field of bioelectric sensing materials. By utilizing the characteristic that a polymer chain in the hydrogel has temperature-dependent phase change, the hydrogel is endowed with the advantages of intelligent adhesion and on-demand removal without pain and stimulation, and meanwhile, the hydrogel has good mechanical strength, is low in cost and convenient to operate, is suitable for large-scale production, popularization and application, and has wide application prospects. Wide application values are realized in the fields of wound dressings, postoperative care and the like.

The invention discloses nano ettringite particle reinforced aramid nanofiber aerogel as well as a preparation method and application thereof, and belongs to the technical field of aerogel. The preparation method provided by the invention comprises the following steps: dissolving a calcium source, an aluminum source and sulfate in water, adding a first surfactant, adjusting the pH value to 9-12, stirring for reaction, and after the reaction is finished, washing a solid product to be neutral to obtain nano ettringite particles; uniformly stirring and mixing the nano ettringite particles, para-aramid nanofibers, a second surfactant and a cross-linking agent in water to obtain an ettringite / aramid nanofiber dispersion liquid; the ettringite / aramid nanofiber dispersion liquid is sequentially subjected to concentration, directional freezing and freeze drying, and the ettringite / aramid nanofiber composite material is obtained. The preparation method disclosed by the invention is simple, the raw materials are easy to obtain, and the obtained nano ettringite particle reinforced aramid nanofiber aerogel has relatively high mechanical strength and thermal stability.

The invention discloses a small tower footing alkali polishing additive suitable for high back contact of a TOPCon battery and a use method of the small tower footing alkali polishing additive, and relates to the technical field of monocrystalline silicon polishing. Comprising the following components: a corrosion catalyst, a multi-carboxyl polymer, a high-wetting defoaming agent, a surfactant, a chelating agent, a protective agent, hyperbranched polylysine, tannic acid, quinoline yellow, caffeine, 3-(N-morpholinyl)-2-sodium hydroxypropanesulfonate and deionized water. The alkali polishing additive is good in polishing effect under the condition of low weight loss, a relatively rough small-size tower footing can be formed on the back face of a silicon wafer after alkali polishing, and the cell conversion efficiency is gained.

The invention belongs to the technical field of new energy materials, and discloses a fused salt auxiliary valence gradient doped modified single crystal positive electrode material and a preparation method and application thereof. The preparation method comprises the following steps: mixing a transition metal source, a lithium source, a manganese source and a molten salt auxiliary agent, sequentially carrying out first sintering and second sintering, and removing the molten salt auxiliary agent to obtain a doped modified single crystal positive electrode material precursor; and tempering the doped modified single-crystal positive electrode material precursor to obtain the fused salt auxiliary valence gradient doped modified single-crystal positive electrode material, the doped modified single crystal positive electrode material prepared by the invention can effectively avoid the capacity loss of the material, significantly reduce lattice mismatch in the lithium intercalation / deintercalation process, and relieve the volumetric strain in the charge-discharge process. Meanwhile, the formed M-O bond can enhance the structural stability of the material and inhibit the formation of microcracks of the material. The preparation method of the positive electrode material is convenient for industrial application, and provides a thought for commercial modification of the positive electrode material.

The invention provides a preparation method of hexafluoroisobutylene, which comprises the following steps: (1) mixing a first solvent, a first alkali liquor and a sulfonium salt compound in an inert gas atmosphere for primary reaction, then mixing with hexafluoroacetone for secondary reaction, and purifying to obtain 2, 2-bis (trifluoromethyl) ethylene oxide; (2) mixing a second solvent and 2, 2-bis (trifluoromethyl) ethylene oxide in an inert gas atmosphere, carrying out first cooling treatment, then mixing a reducing agent, carrying out a reduction reaction, and purifying to obtain hexafluoroisobutanol; and (3) mixing a third solvent and second alkali liquor, carrying out second cooling treatment, mixing hexafluoroisobutanol, carrying out third reaction, condensing and rectifying to obtain the hexafluoroisobutene. The preparation method provided by the invention is short in process route and mild in reaction condition, the solvent used in the preparation process can be recycled, the pollution in the preparation process is reduced, and the preparation method is less in three wastes, environment-friendly and suitable for large-scale production.

The invention provides a preparation method and application of a zinc negative electrode with an MCM-41 protective layer, and relates to the field of electrochemical energy storage materials. The preparation method comprises the following steps: firstly, heating and stirring hexadecyl trimethyl ammonium bromide, sodium hydroxide and deionized water for 1.5 hours, then adding tetraethoxysilane, heating and stirring for 2 hours to obtain a mixed solution, aging the obtained mixed solution in an air atmosphere for 15 hours, centrifugally washing, drying, putting into a porcelain boat, heating to 550 DEG C at a constant speed, calcining for 4 hours, and naturally cooling to obtain MCM-41 powder. And grinding and mixing the obtained MCM-41 powder and polyvinylidene fluoride, dropwise adding N-methyl pyrrolidone, stirring to prepare slurry, uniformly coating the surface of a zinc metal negative electrode with the obtained slurry through a scraper, and carrying out vacuum drying to obtain the zinc negative electrode with the MCM-41 protective layer. The MCM-41 material is used as a zinc negative electrode protection layer to inhibit the growth and corrosion passivation of metal zinc negative electrode dendrites in the charging and discharging process of a zinc ion battery, so that the cycling stability and the electrochemical performance of the battery are greatly improved.

The preparation method comprises the following steps: dissolving 2-methylimidazole, zinc nitrate, nickel nitrate and manganous nitrate in methanol in proportion to prepare a mixed solution, and stirring the mixed solution for 20-30 hours at the temperature of 20-35 DEG C; after the stirring is finished, carrying out solid-liquid separation, washing, drying and grinding the solid, and then pyrolyzing the ground powder in an inert atmosphere to obtain a catalyst; the catalyst is subjected to heating pickling, alcohol washing and water washing with a sulfuric acid solution and then dried, and the nickel-manganese diatomic catalyst is obtained. Nickel-manganese transition metal is used for doping zinc ZIF, nickel and manganese elements obtained after carbonization are in atomic-scale distribution in a carbon-nitrogen skeleton and are uniformly distributed, nickel-manganese diatomic electrochemical reaction activation sites are formed, and the catalyst has a porous structure and has high selectivity and high current density in preparation of CO through electrocatalytic reduction.

The invention provides a preparation method of coaxial aerogel fiber and temperature self-adaptive protective aerogel fabric, which comprises the following steps: weighing nano-crystalline cellulose powder and dispersing in deionized water to obtain nano-crystalline cellulose dispersion suspension, weighing phase change microcapsules and dispersing in the nano-crystalline cellulose dispersion suspension to obtain phase change microcapsules; a core layer spinning mixed solution is obtained; carrying out wet spinning on the nano aramid fiber spinning stock solution and the core layer spinning mixed solution through a coaxial spinning needle, and fully solidifying in a coagulating bath to obtain coaxial gel fibers; the coaxial gel fibers are subjected to multiple times of solvent replacement treatment, then washed to be neutral and finally subjected to freeze drying treatment, and the coaxial aerogel fibers are obtained. According to the fabric, the phase change microcapsules are perfectly wrapped in the aerogel fibers, and the fabric has good heat insulation performance, good mechanical performance, excellent low-temperature and high-temperature responsiveness and a good protection effect in an extreme environment.

The invention discloses a preparation method of a high-entropy phosphide nanotube, which successfully prepares a nanotube phosphide with a high-entropy structure by adopting a hydrogen bond organic framework (HOF)-metal organic framework (MOF) template conversion method. In the preparation process of the material, a core-shell structure (HOF (MOF)) is firstly formed, the core gradually disappears through a diffusion mechanism, and finally, the material is converted into a hollow nanotube structure which is uniform and controllable in size. According to the hollow structure, the specific surface area is remarkably increased, more active sites are provided, the transmission path of reactant molecules is optimized, and the electro-catalytic performance is greatly improved. Besides, the overall tubular morphology of the material is uniform, the size is controllable, and compared with a traditional granular material, the specific surface area is remarkably increased, so that more reaction sites are exposed in the external environment, and the catalytic efficiency and the reaction rate of the material in an electro-catalytic reaction are greatly improved.

The invention relates to the technical field of catalysts, and particularly discloses a phosphorus-containing porous organic polymer supported nickel catalyst which is prepared from a Ni precursor and a phosphorus-containing porous organic polymer, the loading amount mass fraction of Ni in the catalyst is 0.1-10%, and the phosphorus-containing porous organic polymer is a random copolymer and has a structural general formula I; the invention also provides a preparation method and application thereof. After the porous organic polymer containing the phosphorus ligand provided by the invention and transition metal salt form a catalyst, the phosphorous acid diester compound can be efficiently catalyzed and synthesized, the phosphorous acid diester compound can be recycled after the reaction, and the performance cannot be obviously reduced in the cyclic catalysis process.

The invention belongs to the technical field of biological fermentation, and discloses a method for producing L-histidine through fermentation, which comprises the following steps: step 1) preparing a primary seed solution, step 2) preparing a secondary seed solution, step 3) fermenting, step 4) centrifuging and filtering, step 5) decoloring, and step 6) crystallizing. In the separation and purification process, ion exchange resin is prevented from being used for separation, the amount of generated wastewater is small, and the method is environment-friendly; the method mainly adopts the processes of centrifugation, filtration, decoloration and the like, avoids the use of organic solvents, is simple and feasible to operate, and is suitable for large-scale production.

The invention discloses a silicon-carbon composite material, a preparation method thereof, a pole piece, application and an electrochemical device. The preparation method of the silicon-carbon composite material comprises the following steps: S1, carrying out graphene carbon coating and silane deposition on porous carbon to obtain a first silicon-carbon material; a carbon source system used during graphene carbon coating comprises methane, hydrogen and inert gas; s2, performing first gas-phase carbon coating and second liquid-phase carbon coating on the first silicon-carbon material to obtain a silicon-carbon composite material; and a pore-forming agent is also added when the second liquid phase is coated. The battery assembled by the silicon-carbon composite material disclosed by the invention has better electrochemical performance, and particularly has better cycle performance, first coulombic efficiency and rate capability.

The invention discloses a preparation method and application of a fish I-type collagen sodium alginate supramolecular assembly, fish processing byproducts are used as raw materials, and the fish I-type collagen is prepared by an acetic acid extraction and salting-out column chromatography purification integrated technology. The preparation method comprises the following steps: by taking fish type I collagen as a raw material, adding sodium alginate, and carrying out composite reaction, so as to obtain a mixed solution of the fish type I collagen, the sodium alginate and the fish type I collagen sodium alginate supramolecular assembly; and purifying the product by using a salting-out membrane separation integration technology to obtain the fish type I collagen sodium alginate supramolecular assembly. The fish type I collagen sodium alginate supramolecular assembly prepared by the invention keeps a triple helix structure of the type I collagen, shows good biocompatibility, and solves the application bottleneck problems of poor solubility and stability of the fish type I collagen and the like; the composition has the advantages of excellent solubility, high thermal stability, remarkable anti-wrinkle and moisturizing effects and good safety, so that the composition is very suitable for being applied to the field of anti-aging cosmetics.

The invention belongs to the technical field of inorganic powder, and discloses low-radioactivity spherical aluminum oxide as well as a preparation method and application thereof. The preparation method comprises the following steps: adopting ultrapure water at 20-60 DEG C, and adding acid to adjust the pH value to be less than or equal to 2.5 to obtain acid liquor; taking aluminum hydroxide / boehmite / industrial alumina as raw materials, adding the raw materials into the acid liquor, and stirring and dispersing to obtain mixed slurry A; adding alkaline anion exchange resin into the mixed slurry A, carrying out hydrothermal stirring treatment for 8-12 hours, and removing the alkaline anion exchange resin to obtain mixed slurry B; carrying out suction filtration and drying on the mixed slurry B, and carrying out heat preservation treatment on the dried material at 1300-1400 DEG C for 6-9 hours; and S4, crushing and dispersing the material subjected to heat preservation treatment in the step S4, and melting and spheroidizing at 1100-1300 DEG C to obtain a low-radioactivity spherical aluminum oxide crude product. The prepared low-radioactivity spherical alumina powder is compact in structure, high in thermal conductivity, low in uranium content and suitable for EMC production and application.

The invention discloses a heterojunction composite catalyst and a preparation method and application thereof. The heterojunction composite catalyst of the invention comprises the following steps: melamine is calcined multiple times to obtain graphite-like carbon nitride nanosheets; copper salt, indium salt and thioacetamide are dissolved in water, and then graphite-like carbon nitride nanosheets are added, and the heterojunction composite catalyst is obtained after sufficient reaction at 80°C to 120°C. The heterojunction composite catalyst of the invention is a graphite-like carbon nitride main material obtained by multiple calcinations, and the copper indium sulfur compound is loaded on the graphite-like carbon nitride by in-situ deposition. The catalyst is a two-dimensional trapezoidal heterojunction catalyst, which has the advantages of high efficiency, good activity, good stability, environmental friendliness and low production cost in photocatalytic production of H2O2, and is suitable for actual production and application.

The invention relates to the technical field of tea processing, in particular to a black tea processing method for improving color, aroma and taste quality of black tea. Comprising the following steps: S1, withering; s2, vibration: placing the withered leaves in a vibration groove for transmission and vibration to obtain spread-cooled leaves; s3, performing rolling; s4, performing fermentation; s5, primary drying; s6, fermentation: putting the tea leaves subjected to primary drying in the step S5 into a fermentation room for fermentation to obtain fermented leaves; and S7, sufficient drying. On the basis of the existing processes of withering, rolling, fermentation, primary drying, re-drying and the like for black tea production, on one hand, a launder vibration process is introduced, conversion of aroma precursor substances is accelerated, and meanwhile excessive mechanical damage to leaves in the traditional rocking process is relieved. On the other hand, according to the method, polyester catechin, theaflavin and thearubigins are synthesized by adopting a fermentation process after the black tea is initially dried, so that the taste and the liquor color quality of the black tea are further improved.

The invention provides a high-entropy ceramic nano composite structure coating as well as a preparation method and application thereof, and belongs to the technical field of hard protective coatings. The high-entropy ceramic nano-composite structure coating provided by the invention comprises a plurality of structural units which are laminated on the surface of a substrate, wherein each structural unit comprises a template layer and a modulation layer arranged on the upper surface of the template layer; the template layer is in contact with the substrate; the template layer is made of a nitrogen-doped TiAlCrZrWV alloy material, and the modulation layer is made of a nitrogen-doped carbon material. According to the high-entropy ceramic nano-composite structure coating and the preparation method thereof, the template layer is high in hardness and elasticity modulus, the modulation layer has good tribological performance, when the modulation layer is inserted into the middle of the template layer, on one hand, improvement of friction performance is promoted, on the other hand, the toughness and hardness of the high-entropy ceramic nano-composite structure coating are improved, and balance between the brittleness and abrasion resistance of the coating is achieved.

The invention belongs to the technical field of sodium ion batteries, and particularly relates to a double-carbon-coated bismuth ion doped sodium vanadium phosphate composite material, a preparation method and application thereof. The composite material is Na3BixV2-x (PO4) 3 / C (at) rGO, and x is more than or equal to 0.05 and less than or equal to 0.15. The preparation method of the composite material comprises the following steps: firstly, directly preparing Na3BixV2-x (PO4) 3 / C (at) rGO precursor powder by a one-step method; and calcining the Na < 3 > Bi < x > V < 2-x > (PO4) 3 / C (at) rGO precursor powder to obtain the Na < 3 > Bi < x > V < 2-x > (PO4) 3 / C (at) rGO composite material. The obtained composite material is used as a positive electrode material in a sodium-ion battery and has high reversible specific capacity, the electrochemical performance of the sodium-ion battery is greatly improved, and the battery is high in conductivity, stable in cycle performance and excellent in charge-discharge performance.

The invention relates to a hydroxyapatite coating loaded with cerium oxide nano-enzyme with high Ce < 3 + > content as well as a preparation method and application of the hydroxyapatite coating. The hydroxyapatite coating CNP-HAp coating loaded with the cerium oxide nano enzyme with high Ce < 3 + > content comprises a hydroxyapatite coating formed by plasma spraying and cerium oxide biological antioxidant nano enzyme particles with high Ce < 3 + > content, wherein the cerium oxide biological antioxidant nano enzyme particles with high Ce < 3 + > content are uniformly loaded on the surface of the hydroxyapatite coating.

The invention provides a preparation method of a through-type silver-copper composite material used as a melt, and the preparation method comprises the following steps: carrying out multi-pass slotting treatment on the surface of a coiled copper strip along the length direction, and forming a plurality of grooves penetrating through the width direction of the copper strip on the surface of the copper strip; special-shaped machining is conducted on the two side faces of the groove; silver strips are positioned in the multiple grooves correspondingly, and continuous cold compounding is conducted through a special-shaped roller set; carrying out heat treatment on the material obtained by cold compounding; performing multi-pass cold rolling-annealing on the material subjected to heat treatment to obtain a composite material strip; and the composite material strip is brushed, so that the silver layer with the preset width is exposed from the bottom of the groove, and the through type silver-copper composite material used as the melt is formed. The composite interface bonding strength of the silver-copper composite material can be enhanced, and the production efficiency of the silver-copper composite material and the quality stability of the fuse melt are improved.

The invention discloses a temperature-adjusting antibacterial microcapsule material and a preparation method and application thereof.The preparation method comprises the steps that S1, paraffin and a microcapsule wall material precursor are mixed, heated and stirred, and an oil phase solution is formed; s2, dispersing an emulsifier in a water-phase solvent, heating and stirring to form a water-phase solution; s3, uniformly mixing the oil-phase solution with the water-phase solution, and performing ultrasonic emulsification to obtain a homogeneous oil-in-water emulsion; s4, dropwise adding alkali liquor into the oil-in-water emulsion, initiating hydrolysis and condensation polymerization of the microcapsule wall material precursor, and performing suction filtration, water washing and drying on the obtained product to obtain microcapsule powder; and S5, adding the microcapsule powder into a metal salt solution, carrying out a reaction under heating and stirring conditions, and carrying out suction filtration, water washing and drying on the obtained product to obtain the temperature-adjusting antibacterial microcapsule material. The polysiloxane coated paraffin phase change energy storage microcapsule is prepared by a sol-gel method, and hydroxyl on a wall material is complexed with metal ions, so that the thermal conductivity of the microcapsule is improved, and meanwhile, the antibacterial effect is also enhanced.

The invention provides a novel compound feed for leuciscus waleckii, which comprises the following components: 10 to 30 percent of fish meal, 8 to 12 percent of soybean protein concentrate, 15 to 20 percent of flour, 3 to 6 percent of casein, 0.5 to 2 percent of gelatin, 4 to 6 percent of corn protein powder, 2 to 3 percent of soybean oil, 2 to 3 percent of fish oil, 18 to 24 percent of dextrin, 0.3 to 0.6 percent of mineral substance and vitamin premix, 0.2 to 0.6 percent of choline chloride, 1.5 to 2.5 percent of monocalcium phosphate, 0.05 to 0.12 percent of vitamin C ester, 2.5 to 3.5 percent of microcrystalline cellulose and the balance of water. The non-grain novel protein source defatted tenebrio molitor powder is used for partially replacing the fish meal, and the replacement proportion is 0-60%. The invention further provides a preparation method of the novel compound feed for the leuciscus waleckii, and the obtained feed is used for the leuciscus waleckii and can promote the growth performance, the digestive function, the protein metabolism function, the lipid metabolism function, the immune function and the oxidation resistance of the leuciscus waleckii. The invention provides a theoretical reference for developing a novel non-grain protein source, saving fish meal protein, reducing the feed cost and optimizing the artificial compound feed for the leuciscus waleckii.

The invention belongs to the technical field of building materials, and particularly relates to a curing agent for fluid stabilized soil and a preparation method and application thereof. The curing agent comprises the following components in parts by weight: 20-40 parts of cement, 20-40 parts of slag, 15-35 parts of steel slag, 10-30 parts of fly ash, 5-15 parts of carbide slag, 1-10 parts of desulfurized gypsum, 0.01-1 part of a hyperdispersant, 0.01-2 parts of an expanding agent and 0.01-0.5 part of an internal curing agent. The curing agent disclosed by the invention has an excellent curing effect, can overcome the problem that high fluidity, high strength and low shrinkage cannot be considered in the existing fluid-state solidified soil technology, can improve the durability of the fluid-state solidified soil, and is suitable for various projects such as foundation backfilling and site leveling.