62results about How to "Not easy to decompose" patented technology

The invention discloses a silver-based tin oxide electric contact material and a preparation method thereof, and relates to the technical field of electric contact materials. When the silver-based tin oxide electric contact material is prepared, firstly, a high-temperature solid-phase method is used for doping lithium and cerium to prepare doped tin oxide powder; stannic chloride and copper nitrate are prepared into a fiber membrane through electrostatic spinning, meanwhile, titanium dioxide is grown in situ through nano spraying, and doped stannic oxide fibers are prepared after calcination; the doped tin oxide powder, doped tin oxide fibers and silver powder are subjected to high-energy ball milling and powder mixing and then annealed, and silver-based tin oxide composite powder is obtained; the silver-based tin oxide composite powder is subjected to pre-pressing forming and then subjected to vacuum discharge plasma sintering, and the silver-based tin oxide electric contact material is prepared. The prepared silver-based tin oxide electric contact material has the advantages of being low in resistivity, high in fusion welding resistance, good in arc erosion resistance and easy to machine and shape.

The invention relates to the technical field of high polymer materials, in particular to a corrosion-resistant, aging-resistant and flame-retardant ETFE film and a preparation process thereof. The preparation process comprises the following steps: preparing the ETFE polymer; preparing modified polytetrafluoroethylene microsphere powder; preparing a dopamine modified polytetrafluoroethylene emulsion; and preparing the corrosion-resistant, aging-resistant and flame-retardant ETFE film. According to the preparation method disclosed by the invention, the polytetrafluoroethylene is modified by utilizing dopamine, after the emulsion is prepared, the surface of the ETFE film is covered with a layer of coating, the dopamine can spontaneously polymerize into polydopamine in a natural environment, the polydopamine has relatively good adhesion and can be firmly combined with the ETFE film, and the polytetrafluoroethylene and the ETFE film have similar structures and chemical characteristics, so that the preparation method has the advantages that the preparation method is simple, the cost is low, and the application prospect is wide. The ETFE film does not fall off after being tightly bonded for a long time, but the two films are gradually fused, so that the aging resistance of the ETFE film is improved.

The invention discloses a corrosion-resistant centrifugal water pump sealing filler and a preparation method thereof, and belongs to the technical field of sealing packings.The corrosion-resistant centrifugal water pump sealing filler comprises composite polyurethane powder and modified polytetrafluoroethylene powder, the composite polyurethane powder is obtained by compounding polyurethane and epoxy resin, and when polyurethane is prepared, the modified polytetrafluoroethylene powder is added into the composite polyurethane powder; cyanuric chloride with high chemical stability is introduced into 2-aminoethanolamine, so that a corrosion-resistant modified polyol solid is obtained, when epoxy resin is prepared, epoxy acrylate and tetrafluoroethylene are subjected to an addition polymerization reaction, so that a fluorine-carbon bond is introduced to the epoxy resin, the corrosion resistance of the epoxy resin is improved, and the corrosion resistance of the epoxy resin is improved. And the activated inorganic powder, nitrile rubber particles and polytetrafluoroethylene are subjected to ultraviolet radiation to obtain modified polytetrafluoroethylene, so that the mechanical property and wear resistance of the polytetrafluoroethylene are improved.

The present application relates to the technical field of pesticides, in particular to a kind of pesticide composition, preparation, use and method, the pesticide composition includes the active ingredient A and active ingredient B with mass ratio of 1: (10-50), the active ingredient A is p-chlorophenoxyacetic acid or its agronomically acceptable salt, the active ingredient B is ethylene.The present application is by p-chlorophenoxyacetic acid (or its salt) and ethylene is compounded according to specific proportion with specific application concentration is applied, reaches the effect of controlling vigorous, inhibiting ear germination and increasing yield, alleviates the negative influence of growth inhibition to root system and young ear development caused by ethylene as the vigorous controller is used and the side effect of early decline and yield reduction caused by as ear germination inhibitor is used;Meanwhile, the pesticide preparation provided by the present application is soluble concentrate, and has high efficacy, strong penetration, convenient use, good safety, and the active ingredient is not easy to decompose, and the physical and chemical properties are stable.

The utility model relates to the technical field of downhole geophysical prospecting, specifically a kind of instrument shock absorption type storage device for downhole geophysical prospecting. Including: storage component, the storage component includes box, lid, storage, shock pad and sealing element, the lid rotationally connected on box, storage is set to the inside of box, shock pad is fixedly connected at the bottom of box, the sealing element is set to the outside of box;Protective component, the protective component is set to the inside of box and lid, and protective component includes buffer, foam pad, magic tape, limiting piece and pull rope, buffer is set to the inside of storage, foam pad is set to the inside of box and lid, magic tape is set to the outside of foam pad, limiting piece and pull rope are all set to the outside of buffer. The utility model can avoid that instrument is extruded harm, utilizes lining bushing and is wrapped with instrument protection, can reduce the impact force from each direction, improves the protection effect to instrument.

The invention relates to the technical field of lubricating oil, and discloses flame-retardant flat cable lubricating oil suitable for enameled round aluminum wires and a preparation method and application of the flame-retardant flat cable lubricating oil, and the lubricating oil comprises the following components in percentage by mass: 40-60 wt% of base oil, 10-30 wt% of phosphorus-containing monomers, 10-20 wt% of nitrogen-containing monomers, 1-5 wt% of an initiator and 1-5 wt% of a cross-linking agent, preferably, the composition also comprises the following components in percentage by weight: 3-8% of a nano reinforcing agent, 0.3-1% of an antioxidant and 0.1-0.5% of an ultraviolet light stabilizer. The base oil is polyether modified silicone oil, the phosphorus-containing monomer is a phosphate functional group comonomer, the nitrogen-containing monomer is a polar monomer with a nitrogen heterocyclic structure, and the nano reinforcing agent is a montmorillonite nanosheet of which the surface is modified by an organic functional group. The lubricating oil disclosed by the invention has excellent flame retardance, thermal stability and adhesive force, and is particularly suitable for the enameled round aluminum wire to be used in a high-temperature and high-speed environment.

The invention discloses a water-swelling elastic plugging agent for a water-based drilling fluid and a preparation method of the water-swelling elastic plugging agent. The water-swelling elastic plugging agent comprises the following components in parts by weight: 100 parts of a polyolefin elastomer matrix material; 15 to 20 parts of a reinforced matrix material; 0.8 to 1.5 parts of a polyolefin elastomer matrix material cross-linking agent; 8 parts to 15 parts of a reinforcing agent A; 20 to 30 parts of a reinforcing agent B; 15 to 30 parts of super absorbent resin; 15 to 20 parts of a plasticizer; 0.2 to 0.8 part of an isolating agent; 0.5 to 1 part of an anti-aging agent; the plugging agent provided by the invention is simple in preparation process, not only is beneficial to industrial production, but also is convenient to prepare plugging slurry on site, can achieve a good plugging effect, and provides an effective technical means for well leakage treatment.

The invention discloses a glucan polyethylene glycol cross-linked polymer microparticle solution as well as a preparation method and application thereof. The glucan polyethylene glycol cross-linked body microparticle contains two repetitive structural units: a first structural unit and a second structural unit, the first structural unit is from a first monomer, and the first monomer is polyethylene glycol diacrylate and has a structure A; the second structural unit is from a second monomer, and the second monomer is modified macromolecular glucan and has a structure B; the glucan polyethylene glycol cross-linked body microparticle solution is formed by performing ultraviolet cross-linking on a first monomer and a second monomer. The dextran polyethylene glycol cross-linked body microparticle solution can be used for preparing medical beauty products. After the skin care product is used, subcutaneous autologous regenerated collagen filling and wrinkle removal are realized, the appearance is natural, and the maintenance time is long. The dextran polyethylene glycol cross-linked microparticle solution is simple in preparation procedure and high in product yield.

The invention provides a battery, the working voltage of the battery is not lower than 4.5 V, the battery comprises an electrolyte, and the electrolyte comprises a first component and a second component; the first component comprises fluoroethylene carbonate; and the second component comprises a compound as shown in formula I: # imgabs0 #. The electrolyte provided by the invention can form a stable interfacial film, is low in interfacial resistance and high in conductivity, is not easy to decompose, and is beneficial to improving the stability of a positive electrode material and reducing the capacity loss of the positive electrode material, so that the cycle performance and high-temperature storage performance of the battery under a high-pressure condition are improved.

The application discloses a kind of corrosion-resistant anti-aging plastic packaging barrels and preparation method thereof, belong to plastic product processing technical field, to solve the technical problems that corrosion resistance and anti-aging performance of plastic packaging barrel in prior art need to be further improved, specifically including the following raw material composition by portion: 60-70 parts modified silicone, 3-5 parts modified aging-resistant filler, 8-12 parts polypropylene, 12-18 parts maleic anhydride grafted polypropylene and 3-5 parts auxiliary additive, the application is that polypropylene, maleic anhydride grafted polypropylene, modified silicone, modified aging-resistant filler and auxiliary additive are added into double-screw melt extruder, melt extrusion, injection mold, obtain plastic packaging barrel, not only improve its corrosion resistance and anti-aging performance, also improve its mechanical properties.

The invention discloses a high-temperature fire-resistant heat-insulation carbon fiber composite material which comprises the following components in parts by weight: 35-50 parts of wollastonite-feldspar composite powder, 25-35 parts of modified porous mullite aggregate, 12-20 parts of calcium aluminate cement, 2-8 parts of modified short carbon fibers, 1.5-2.5 parts of sodium dodecyl benzene sulfonate and 1-2 parts of sodium tripolyphosphate. The preparation method comprises the following steps: S1, weighing the wollastonite-feldspar composite powder, the modified porous mullite aggregate, the calcium aluminate cement and the modified short carbon fibers in proportion, and carrying out dry mixing; s2, adding water into sodium dodecyl benzene sulfonate and sodium tripolyphosphate, and stirring to obtain an auxiliary agent aqueous solution; s3, adding the auxiliary agent aqueous solution into the dry powder mixture, and stirring; s4, transferring the slurry into a mold for hydraulic forming; s5, the formed blank is subjected to curing, demolding, drying, high-temperature sintering and cooling, and the high-temperature fire-resistant heat-insulation carbon fiber composite material is obtained. The fire-resistant and heat-insulating carbon fiber composite material produced by the invention can improve the high temperature resistance and compression strength.

The invention discloses a modified polyethylene double-wall corrugated pipe material and a preparation method thereof, and the pipe material comprises the following raw materials by weight: 70-80 parts of high density polyethylene, 10-15 parts of linear low density polyethylene, 0.5-2 parts of a crosslinking modifier, 0.5-1 part of dicumyl peroxide, 0.1-0.5 part of a main antioxidant, 0.1-0.3 part of an auxiliary antioxidant, and 5-10 parts of a flexibilizer. The invention relates to a high-strength high-toughness alloy which comprises the following components in parts by weight: 2-3 parts of lanthanum fluoride (LaF3), 2-3 parts of cerium fluoride (CeF3), 3-5 parts of SMC crystal whiskers, 3-5 parts of basic magnesium sulfate crystal whiskers coated with tannic acid and 6-10 parts of zinc borate crystal whiskers. The rare earth compound lanthanum fluoride, the lanthanum fluoride, the SMC whisker, the basic magnesium sulfate whisker coated by tannic acid and the zinc borate whisker are added, so that the thermal stability and the mechanical property of the material can be greatly improved, and the material is not easy to decompose at a relatively high temperature; and the cerium compound and the zinc borate whisker can catalytically esterify into carbon when the polyethylene is combusted, and a compact and continuous carbon layer is quickly formed on the surface of the polyethylene, so that the flame retardant property of the polyethylene is improved.

The invention relates to a nicotinamide ribose malate crystal form and a preparation method and application thereof, and belongs to the technical field of biomedicine. The product prepared by the invention is verified as nicotinamide ribose malate by nuclear magnetic H-NMR, and has obvious characteristic peaks compared with commercially available products, so as to be a nicotinamide ribose malate product of a new crystal form. The preparation method of the invention comprises the following steps: firstly mixing a solvent, DL-malic acid and a base, and then adding nicotinamide ribose chloride to react, and after the reaction, controlling the temperature, reaction time, cooling rate, crystallization time and crystallization temperature to obtain a nicotinamide ribose malate of a new crystal form. The nicotinamide ribose malate of the new crystal form has better air stability and thermal stability, low hygroscopicity and is not easy to decompose.

The application relates to the technical field of lubricating oil, and particularly discloses a high-temperature-resistant and high-friction-reducing lubricating oil and a preparation method thereof. The lubricating oil comprises the following components: 35-45 parts of poly-alpha-olefin, 10-15 parts of methyl ricinoleate, 20-30 parts of pentaerythritol tetraoleate, 15-20 parts of hydrogenated base oil, 0.1-0.2 parts of modified graphene oxide, 0.8-1.5 parts of extreme-pressure anti-wear agent, 0.5-1 part of detergent, 0.3-0.5 part of antioxidant, 0.2-0.3 part of dispersant, 0.5-0.8 part of viscosity index improver, 0.1-0.2 part of rust inhibitor and 0.01-0.05 part of antifoaming agent. The application realizes cost reduction and emission reduction by compounding multiple base oils, guaranteeing the stability of the system through multi-component synergy and replacing part of the base oil with plant-based base oil. The modified graphene oxide significantly reduces wear through physical friction reduction and chemical anti-wear synergy, quickly discharges accumulated heat and prolongs the service life at high temperature.

This invention relates to the field of electrode technology, and more particularly to symmetrical composite electrodes, their preparation methods, and applications. This invention utilizes a one-pot method for self-assembly of doped cubic lanthanum ferrite-based perovskite oxide and doped cubic fluorite-type cerium oxide, followed by in-situ precipitation of doped metal nanoparticles. The chemical formula of the doped cubic lanthanum ferrite-based perovskite is (La... 0.5 Sr 0.5 )[(Fe 0.9 Nb 0.1 ) 1.0‑x M x ]O 3‑δ The chemical formula of doped fluorite-type cerium oxide is Gd. 0.075 Ce 0.925‑y M y O 2‑δ The doped metal nanoparticles are elemental M. When a reducing gas is introduced, the metal nanoparticles M precipitate in situ. This heterogeneous structure of the metal particles is tightly bonded to the composite electrode material, exhibiting good dispersion, and the embedded structure ensures excellent electrode stability. As a symmetrical electrode for SOEC, this invention achieves superior catalytic activity for carbon dioxide reduction and methanol oxidation.

The invention discloses a hydrogen energy and natural energy heat pump heat supply and refrigeration integrated system and method, and relates to the technical field of hydrogen energy and natural energy heat pump heat supply and refrigeration integration. The heat pump heating module comprises the following steps that S1, carbon dioxide in air is absorbed through a refrigerant or the refrigerant and released into water; the carbon dioxide heat pump is used, and carbon dioxide is a clean refrigerant, has no destructive influence on the environment, is stable in chemical property, non-combustible, not easy to decompose at high temperature, does not generate harmful gas, is non-toxic, reduces threats to people due to leakage, is good in fluidity and has a relatively high evaporation latent heat value; compared with conventional refrigerants, the compression ratio of carbon dioxide is much smaller than that of common refrigerants, high performance coefficient and mechanical efficiency can be achieved, the high condensing temperature enables the exhaust temperature of a compressor to be high, and water at the high temperature can be obtained.

The invention belongs to the technical field of chemical product preparation, and particularly relates to a metal ion impurity removal method in polymer production and application. The invention provides a metal ion impurity removal method in polymer production. The metal ion impurity removal method comprises the steps of precipitation, filtration, water washing and centrifugation. The invention also provides an application of the impurity removal method in polyphenyl ether impurity removal. In the technical scheme provided by the invention, after the polymer solution to be subjected to impurity removal is mixed with the precipitant, mixed impurity metal ions are precipitated and separated out, then the impurity-removed pure product is obtained through further filtration, water washing and centrifugation, the impurity metal ions do not react with polyphenyl ether in the impurity removal process, the stability of the polyphenyl ether structure is ensured, and the purity of the polyphenyl ether is improved. The generated metal ion precipitate is stable in structure and not easy to decompose; through determination, the copper content in the polyphenyl ether after impurity removal is less than 2.0 mg / kg (or 2ppm), and the technical defect of poor copper removal stability of a method for removing copper ions in the polyphenyl ether by using a chelating agent in the prior art is overcome.

The invention provides a glass fiber reinforced polypropylene material and a preparation method thereof, and belongs to the technical field of propylene copolymers. The preparation method comprises the steps of maleic anhydride copolymer preparation, polypropylene pretreatment, glass fiber pretreatment and blending. The method for preparing the maleic anhydride copolymer comprises the following steps: adding maleic anhydride, styrene and azodiisobutyronitrile into methylbenzene, heating to 70-90 DEG C in a nitrogen environment, stirring and reacting for 1-2 hours at the current temperature, adding glycidyl acrylate, continuously reacting for 30-50 minutes, naturally cooling, filtering, washing and drying to obtain the maleic anhydride copolymer. According to the glass fiber reinforced polypropylene material, the tensile strength is 32-35 MPa, the elongation at break is 71-75%, and after a thermal aging test, the tensile strength is 29-33 MPa, and the elongation at break is 65-70%.

The invention discloses a high-temperature-resistant metal casting demolding coating and a preparation method thereof, and belongs to the technical field of coatings. The components of the coating are optimized, the composite binder formed by compounding the organic binder and the inorganic binder is adopted, and the high-temperature-resistant auxiliary agent composed of the zirconite powder, the corundum powder and the nano cerium oxide is combined, so that the temperature tolerance of the coating is remarkably improved, and the service life of the coating is remarkably prolonged; the added hexagonal boron nitride can form a compact and smooth coating surface, the adhesion between a metal melt and a mold can be effectively reduced by combining the high-temperature-resistant auxiliary agents of different grades and utilizing the filling-supporting-lubricating synergistic effect and synergistic effect of particles of different sizes, and efficient and stable demolding performance is achieved; and the nano aluminum oxide can form chemical bonding with hexagonal boron nitride and the composite binder, so that the interface bonding force is further enhanced, the coating is prevented from being layered and peeled off under high-temperature impact, the thermal impact of molten metal on the mold is effectively buffered, and the service life of the mold is prolonged.

The invention relates to the technical field of high polymer materials, in particular to a low-warpage halogen-free flame-retardant PBT (polybutylene terephthalate) material and a preparation method thereof. According to the invention, the flame-retardant siloxane and the gamma-mercaptopropyltrimethoxysilane are added to modify the low-warpage glass fiber, so that the composite low-warpage glass fiber is obtained. The halogen-free flame retardant is obtained by adding phosphonitrilic chloride trimer, triethylamine, aminopyrazine and acrylamide. Stirring and mixing the PBT resin, the composite low-warpage glass fiber, the inorganic fiber, the halogen-free flame retardant, the thermal initiator azodiisobutyronitrile, the solvent tetrahydrofuran and other raw materials, carrying out stirring reaction, heating to remove the solvent, and carrying out extrusion granulation to obtain a finished product. The finished product prepared by the invention has excellent flame retardance and warping resistance, so that the finished product has a wide application prospect in the technical field of high polymer materials.

The invention relates to the technical field of electrical contact materials, in particular to a SnO2 electrical contact material for a new energy electrical appliance and a preparation method of the SnO2 electrical contact material. The SnO2 electrical contact material comprises 8-15% of tin oxide, 0.5-3% of a composite additive, 0.1-2% of an accelerant and the balance of silver. According to the invention, yttrium ions and chromium ions can be partially dissolved in tin oxide crystal lattices, so that the thermal decomposition reaction of tin oxide at extremely high arc temperature is effectively inhibited, the material loss caused by tin element volatilization is reduced, the second additive generates a high-melting-point composite oxide phase after high-temperature calcination, and the high-melting-point composite oxide phase is uniformly distributed in a silver matrix; as a physical skeleton for resisting arc erosion, the accelerant mainly plays a role in dispersing and interface optimizing, and an interface compound containing zinc, lanthanum, boron and oxygen is formed after the accelerant is calcined, so that the wettability and binding force between tin oxide particles and a silver matrix are improved, uniform distribution of the tin oxide particles is ensured, local overheating and concentrated erosion are avoided, and the service life of the tin oxide particles is prolonged. Therefore, the mass loss of arc ablation is obviously reduced.

The invention relates to the field of chelating agents and preparation methods thereof, in particular to a multifunctional fly ash chelating agent and a preparation method thereof, and the multifunctional fly ash chelating agent comprises the following materials: dithiocarbamate, sodium thiosulfate, thioate, 2, 6-diamide pyridine ethanethiol, 1, 3-dibenzamide ethanethiol, ethylenediaminetetraacetic acid, a drying agent and an additive. The method comprises the following steps: refining a material; performing pre-stirring; putting in batches; performing drying; performing multi-dimensional mixing; the dithiocar-bamate, the sodium thiosulfate, the thioate, the 2, 6-diamide pyridine ethanethiol, the 1, 3-dibenzamide ethanethiol and the ethylenediaminetetraacetic acid are used as core components of the fly ash chelating agent, so that the fly ash chelating agent can adapt to different heavy metal treatment requirements under the condition of a relatively wide PH value, can be comprehensively and effectively combined with heavy metal ions in fly ash, and can be used for treating heavy metal ions in the fly ash. Therefore, the leaching property of heavy metals and the environmental risk are reduced, and the method has multifunctional application in the field of environmental protection, the field of construction, the field of industry and the like.

The invention relates to the field of catalyst preparation, in particular to a double-metal cyanide catalyst and a preparation method thereof. Comprising the following steps that 1, cobalt potassium cyanide is dissolved in deionized water, ultrasonic stirring is conducted for 10-15 min, and a solution A is obtained; 2, ferrous sulfate heptahydrate, a complexing agent and deionized water are mixed and placed in a constant-temperature water bath at the temperature of 25 DEG C to be violently stirred, and a solution B is obtained; and 3, dropwise adding the solution A into the solution B, stirring for 3-4 hours, aging for 48-50 hours, and carrying out post-treatment to obtain the double-metal cyanide catalyst. The preparation method has the beneficial effects that the 3-mercaptopropyltrimethoxysilane is modified, and the 3-mercaptopropyltrimethoxysilane and the straight-chain alcohol serve as complexing agents together, so that the specific surface area of the catalyst is increased, the number of active sites of the whole catalyst is increased, reactant molecules can be effectively activated, and the reaction is promoted.

The application discloses a thiadiazole derivative and a preparation method and application thereof, and is obtained by the reaction of 2,5-dithiolate thiadiazole and N-halogenated maleimide. Compared with traditional benzothiazole sulfenamide rubber and plastic accelerators, the compound has the advantages of higher accelerating efficiency, better processing safety and anti-vulcanization reversion performance, avoids the use of 2-mercaptobenzothiazole with a bitter taste, and is more friendly to the production environment, and has good market and economic prospects.

The utility model discloses an anti-freezing system for a fluid pipeline, which comprises a heating conductor arranged in the pipeline, the heating conductor is connected with a power switch through a lead, and the signal output end of a temperature and flow speed control display instrument is connected with the power switch through a signal line; a temperature sensor and a flow velocity sensor are installed on the inlet valve body connected with the inlet end of the pipeline, the flow velocity sensor is used for measuring the flow of fluid entering the inlet valve body, and the temperature sensor is used for measuring the temperature of the fluid entering the inlet valve body. And the signal output ends of the temperature sensor and the flow velocity sensor are connected with the signal input end of the temperature and flow velocity control display instrument. The structure is adopted for preheating the interior of the pipeline, it is guaranteed that the pipeline cannot be frozen, and therefore normal use of the pipeline is guaranteed.

The invention relates to the field of functional textile materials, in particular to a super-fiber textile fabric with a negative ion sterilization function, the super-fiber textile fabric is prepared from a modified polyester product, the modified polyester product comprises an esterification product, a functional additive, an ultraviolet protective agent, a delustering agent, a coupling agent and an antistatic agent, the preparation technology of the super-fiber textile cloth with the negative ion sterilization function comprises the steps of a, melt spinning, b, stretching and heat setting and c, weaving, the prepared super-fiber textile cloth is good in antibacterial performance, the antibacterial performance is not obviously changed after the super-fiber textile cloth is used for three months, the negative ion release amount, the release durability and the stability of the fiber textile cloth are good, and the service life of the fiber textile cloth is prolonged. And continuous negative ion release and antibacterial effects can be provided.

The invention relates to the technical field of tributyrin, and particularly discloses a tributyrin solid preparation which comprises the following raw materials in parts by mass: 30-60 parts of tributyrin, 5-10 parts of nano cellulose, 1-2 parts of chitosan, 1-2 parts of vinyltriethoxysilane, 100-200 parts of fatty acid, 1-2 parts of sodium alginate, 1-2 parts of hyperbranched polylysine and 1-2 parts of an emulsifier. 0.01-0.1 part of sodium tripolyphosphate, 1-2 parts of sodium carboxymethyl cellulose, 1-2 parts of calcium chloride and 6-12 parts of an anionic surfactant. The invention also discloses a preparation method of the tributyrin solid preparation. The invention also discloses a feed additive which comprises the tributyrin solid preparation.

The invention discloses a process and application of first extracting lithium and then extracting nickel, cobalt and manganese, which belongs to the technical field of waste lithium battery recycling, and comprises the following steps: mixing pretreated positive electrode powder and organic acid solution, stirring, adding composite ion exchange resin, filtering, obtaining solid A and water extract, and obtaining lithium carbonate by post-treatment of solid A; mixing the water extract with composite microbial extractant, filtering, obtaining solid B, and obtaining nickel, cobalt and manganese salt by desorption treatment of solid B. The modified aluminum-based adsorbent is embedded in the cross-linked network structure to form a macroporous adsorption resin, which gives the macroporous adsorption resin a directional adsorption function for lithium ions, thereby first separating lithium ions from waste lithium batteries; the composite strain is adsorbed into the interior of porous carbon, and the remaining cobalt ions, manganese ions and nickel ions in the positive electrode powder water extract can be adsorbed into the interior of the porous carbon, avoiding the influence of other impurities, and improving the extraction rate of nickel, cobalt and manganese.

The invention provides a method for improving the high-temperature interface strength of a quartz fiber composite material. The method comprises the steps of fiber cleaning, fiber surface activating treatment, fiber surface grafting treatment and composite material forming. Taking the quartz fiber reinforced polyimide resin composite material as an example, the bending strength of the composite material prepared by the method is greater than or equal to 306Mpa under the test condition of 400 DEG C / 20min, and is improved by 43%; the interlayer shear strength is greater than or equal to 21.1 MPa and is improved by 35.2%, and the dielectric constant is less than or equal to 3.4. The method solves the problems of poor interface bonding strength, low mechanical strength and poor structural stability of the quartz fiber reinforced resin-based composite material under the long-time high-temperature working condition, and is simple, easy to operate and suitable for batch production and application.