43results about How to "Reduce agglomeration" patented technology

The invention relates to the technical field of activated carbon materials, and discloses an activated carbon material for adsorbing organic gas and a preparation method thereof.The preparation method includes the steps that activated carbon powder, epoxidized cardanol, graphene oxide modified quaternized chitosan, bentonite and nanometer titania are added into grinding equipment to be ground, and a primary material A is obtained; and then continuously adding a water-borne epoxy resin adhesive and water, stirring and drying to obtain the active carbon material for adsorbing the organic gas. Chitosan in the silane modified chitosan structurally contains amino, hydroxyl and other polar groups, so that organic gas can be adsorbed; the graphene also has a relatively good adsorption effect on organic gas, and meanwhile, the agglomeration effect of the graphene is reduced; and siloxane and quaternary ammonium salt groups contained in the adsorbent also have a relatively good adsorption effect on organic gases. Cardanol in epoxidized cardanol contains functional groups such as benzene rings, phenolic hydroxyl groups and long-chain alkanes, and the functional groups endow the cardanol with various reaction activities and can absorb organic gas.

The invention relates to the technical field of powder coatings, in particular to high-fluidity superfine molding powder and a preparation method thereof. The high-fluidity superfine plastic powder comprises the following components in parts by weight: 40-50 parts of epoxy resin, 15-25 parts of a curing agent, 2-4 parts of a catalyst A, 3-5 parts of a plasticizer, 5-8 parts of polyacrylic acid and / or polyacrylate, 3-5 parts of a silane coupling agent, 10-20 parts of filler and 4-6 parts of other auxiliaries, the curing agent at least comprises a fluorine modified amine curing agent; and the median particle size D50 of the powder coating is 10-20 [mu] m. The powder coating adopting the epoxy resin / fluorine-modified amine curing agent system has better flowability and uniformity, charged powder particles can be guided to the surface of a workpiece under the action of an electric field to form a uniform thin coating, the powder particles are easier to carry charges with the same polarity, repulsive force among the particles is increased, and the powder coating can be applied to the surface of the workpiece. Uniform dispersion of powder particles can be kept, and the phenomenon of particle agglomeration is reduced.

The invention discloses a method for preparing high-purity chromium metal through carbon reduction, which comprises the following steps: proportioning chromic oxide, carbon powder, starch and water according to a certain proportion, and carrying out primary compaction to obtain a wet blank; adding the wet blank into an electric arc furnace, and smelting and melting to obtain bulk carbon chromium; after being manually and coarsely crushed, the molten and cooled large carbon chromium blocks are sequentially fed into a jaw crusher and a column mill to be crushed; adding chromic oxide, starch and water into the crushed carbon chromium, mixing, and carrying out secondary compaction to obtain a briquette-like material; feeding the coal-like spherical material into a drying box, gradually heating, fully drying a green body, and then cooling; and after drying, loading the blank into a vacuum reduction furnace layer by layer, and carrying out vacuum reduction on chromium sesquioxide and carbon chromium in a four-side heating manner to obtain the high-purity metal chromium. According to the method, preparation of high-purity metal chromium is achieved, and the conversion rate of preparing metal lattice powder from chromium oxide can be greatly increased; and the content of impurities in the metal chromium is reduced.

The invention relates to the technical field of chemical desulfurization, and discloses an anti-scale desulfurizer and a preparation method thereof.Triazinyl quaternized graphene, modified phenolic resin, activated carbon and 5-hydroxytryptamine are added into a stirrer and stirred, and the anti-scale desulfurizer is obtained. Hydroxyl groups in the triazinyl quaternized graphene and carboxyl groups and hydroxyl groups in the modified phenolic resin form hydrogen bonds, the compatibility between the triazinyl quaternized graphene and the carboxyl groups and the hydroxyl groups in the modified phenolic resin is improved, the triazinyl, the phenolic resin and the graphene have a good adsorption effect on hydrogen sulfide gas, and meanwhile the agglomeration effect of the graphene is reduced. The triazinyl quaternized graphene contains biquaternary ammonium salt and a large amount of hydroxyl, and also has a good adsorption effect on hydrogen sulfide gas. Quaternary ammonium salt groups in the triazinyl quaternized graphene and carboxyl groups in the modified phenolic resin have a good anti-scaling effect, and synergistic anti-scaling is achieved.

The invention provides a method for mechanically cultivating peppers in a solar greenhouse, and belongs to the technical field of pepper cultivation. The cultivation method comprises the steps of preparation of a functional reagent, preparation of functional pepper seeds, sowing and subsequent management. In the step of sowing, after soil is subjected to rotary tillage, a nutrient medium is spread; the preparation method of the nutrient medium comprises the following steps: mixing biochar and attapulgite powder, adding the mixture into deionized water, adding polyvinyl alcohol, heating, drying and calcining to obtain a porous substance; placing the porous substance in an ethanol solution, adding fatty alcohol-polyoxyethylene ether and polyethylene wax, uniformly stirring, adding a cross-linking agent and sodium alginate, carrying out a cross-linking reaction, filtering, putting into deionized water, adding glutamic acid and furfural, carrying out a heat preservation reaction, filtering, washing, and drying to obtain a nutrition matrix; by means of the cultivation method, the weak light resistance of the peppers is improved, the peppers are high in yield and good in quality, and organic planting of the peppers in the sunlight greenhouse in the east-west direction can be achieved.

The invention relates to the technical field of conveying belts, and particularly discloses a halogen-free rubber conveying belt sizing material and a preparation method thereof. The invention relates to a halogen-free rubber conveyer belt rubber material, which comprises the following raw materials by weight: 15-25 parts of natural rubber; 45-55 parts of styrene butadiene rubber; 25-35 parts of butadiene rubber; 50 to 100 parts of a halogen-free flame retardant; 50 to 80 parts of filler; 2-5 parts of a vulcanizing agent; 5-15 parts of an auxiliary agent; the halogen-free flame retardant comprises ammonium polyphosphate, magnesium hydroxide, zinc borate, melamine phosphate, a flame retardant MB202 and diphenyl isooctyl phosphate. The preparation method comprises the following steps: S1, preparing raw materials; and S2, preparing the rubber material. The halogen-free rubber conveying belt rubber material can be used for conveying conveying belts of materials in the fields of coal, mines, metallurgy, chemical engineering and the like, and has the advantages of high temperature resistance, high mechanical property, long service life and the like.

The invention discloses an energy storage type advertisement painting light-emitting film, and relates to the technical field of light-emitting films, the energy storage type advertisement painting light-emitting film comprises a base material layer, and a light-emitting layer and an ink-jet layer which are fixedly arranged at one end of the base material layer in sequence; the light-emitting layer is a first mixed layer formed by uniformly mixing adhesive liquid and a plurality of groups of light-emitting particles; the light-emitting particles comprise phosphor particles and coating layers fixedly arranged outside the phosphor particles, and the coating layers are silicon dioxide layers; the method has the advantages that the phosphor particles are adopted as the light energy storage material, a good long afterglow effect and a high-efficiency conversion effect can be provided, the phosphor particles are provided with the coating layers in advance in the modes of precipitation coating and the like, and then the coating layers are mixed with the adhesion liquid, so that agglomeration can be reduced, and the luminous efficiency and the brightness can be improved; the arranged adhesive liquid can improve the absorption efficiency and dispersion uniformity of the luminous particles and the adhesive strength of the substrate layer; and the protective layer covers the light-emitting layer and the ink-jet layer, so that the protectiveness is improved.

The invention discloses a biaxially stretched polypropylene film for capacitors and a preparation method thereof, comprising the following steps: step 1, uniformly mixing nanoporous silica and cycloolefin copolymer, extruding them twice through a double-screw extruder, melting them at high temperature, hot pressing them on a flat vulcanizer, and then granulating them to obtain a mixed cycloolefin copolymer; step 2, blending the mixed cycloolefin copolymer and polypropylene through a torque rheometer, casting them through a casting machine, and biaxially stretching them to obtain a polypropylene film; the biaxially stretched polypropylene film for capacitors prepared by the invention is prepared by mixing the cycloolefin copolymer and the polypropylene, and the heat resistance of the polypropylene film is improved; the high temperature resistance and mechanical properties of the polypropylene film are further improved by uniformly mixing the nanoporous silica in the cycloolefin copolymer; the nanoporous silica is uniformly dispersed in the polypropylene through the cycloolefin copolymer, and the prepared polypropylene film has excellent heat resistance and high mechanical strength.

The invention relates to the technical field of powder surface modification and functional modification, in particular to surface-treated silver-containing conductive powder and a preparation method and application thereof.The preparation method comprises the steps that an alcohol solvent, water, a silane coupling agent and an organic acid catalyst are mixed, obtained hydrolysate is mixed with the silver-containing conductive powder, and modified conductive powder is obtained; and mixing stearic acid with an organic solvent, and mixing the obtained coating liquid with the modified conductive powder to obtain the surface-treated silver-containing conductive powder. Different kinds of silane coupling agents are combined on the surface of the silver-containing conductive powder in a chemical bond mode through wet modification so as to adapt to different base material systems; stearic acid is secondarily coated on the surface of the modified conductive powder, so that the dispersity of the silver-containing conductive powder in each system is greatly improved, and the agglomeration of the silver-containing conductive powder is reduced; and moreover, through the treatment method and process, powder agglomeration caused by capillary action is reduced, so that surface treatment of the silver-containing conductive powder from submicron to micron is realized.

The invention relates to the technical field of lithium batteries, and discloses inorganic compound slurry and lithium battery positive electrode slurry containing the same. The inorganic compound slurry comprises inorganic compound solid particles, a dispersing agent A and a dispersing agent B, wherein the dispersing agent A is selected from one or more of amine compounds containing ether chains; the dispersing agent B is selected from one or more of phosphoric acid compounds containing ether chains. The inorganic compound slurry contains the dispersing agent A and the dispersing agent B at the same time, the dispersing agent A and the dispersing agent B are compounded, the synergistic modification effect on the surfaces of inorganic compound solid particles is achieved, and when the inorganic compound slurry is mixed into the lithium battery positive electrode slurry, the agglomeration effect between the solid particles can be reduced; and meanwhile, the problem that the viscosity is sharply increased after the inorganic compound slurry is mixed into the positive electrode slurry is also solved.

The application relates to the technical field of wastewater denitrification, and discloses a composite carrier as well as a preparation method and application thereof. The composite carrier comprises porous molybdenum disulfide, the porous structure of the molybdenum disulfide in-situ grows zirconium metal organic frameworks, and the surface of the molybdenum disulfide is loaded with graphene. The composite carrier can not only serve as a place for denitrification of microorganisms, but also can improve the denitrification efficiency of the microorganisms.

The invention provides a graphene resin refill and a manufacturing method thereof.The manufacturing method comprises the steps that thermosetting resin and thermosetting resin are added into a solvent and stirred through a high-speed stirrer to be dissolved, and a first mixed solution is obtained; adding a coloring agent, the modified graphene and a plasticizer into a solvent, quickly stirring, placing in an environment lower than zero DEG C for 1-10 hours, taking out, heating to 90-95 DEG C, and cooling to room temperature to obtain a second mixed solution; and adding the second mixed solution into the first mixed solution, stirring and evaporating the solvent at room temperature to 150 DEG C, grinding by using a three-roller mill to discharge moisture, and extruding a lead bar by using an extruder. According to the graphene resin refill, the chromaticity of writing marks is uniform, and the mechanical property is excellent.

The invention relates to the technical field of high polymer materials, and discloses a graphene modified flame-retardant polyurethane material and a preparation method thereof.The graphene modified flame-retardant polyurethane material is obtained by adding graphene modified polyurethane, a sodium hydroxysulfonate polymer and epoxy nano-silica into a twin-screw extruder and conducting blending extrusion. In the blending extrusion process, hydroxyl groups of the graphene modified polyurethane and the sodium hydroxysulfonate polymer are subjected to ring-opening reaction with epoxy groups of the epoxy nano silicon dioxide, stable chemical crosslinking is formed by the graphene modified polyurethane, the sodium hydroxysulfonate polymer and the epoxy groups of the epoxy nano silicon dioxide, the interfacial compatibility among the three components is increased, and the mechanical property of the graphene modified polyurethane and the sodium hydroxysulfonate polymer is improved. Phosphorus, triazinyl and sodium sulfonate groups in the graphene modified polyurethane and the sodium hydroxysulfonate polymer have good flame retardance and jointly form a flame retardant system, and graphene has good flame retardance.

The invention discloses a carbon nitride-based composite material for photocatalytic degradation and a preparation method thereof, and relates to the technical field of photocatalytic materials. When the carbon nitride-based composite material for photocatalytic degradation is prepared, a small amount of sodium bicarbonate is added into a carbon nitride precursor to serve as an auxiliary agent to prepare carbon nitride, then cadmium sulfide is generated on the carbon nitride, and finally sulfydryl cyclodextrin is introduced. A small amount of sodium bicarbonate is added in the thermal polymerization process of a precursor melamine and urea to serve as an auxiliary agent, impurities and doping are removed after pore forming, structural defects are formed, and the photocatalytic capacity is enhanced; cadmium sulfide is modified on carbon nitride of a two-dimensional planar layered stacked structure, cadmium sulfide and carbon nitride generate a synergistic effect, and mercapto cyclodextrin is modified on cadmium sulfide, so that the stability of the material is improved while the conversion efficiency of light energy is improved.

The invention provides a gas-solid reaction device and a gas-solid reaction method, and relates to the technical field of reaction equipment, the gas-solid reaction device comprises a riser reaction assembly, a downer reaction assembly and a separation circulation assembly, the riser reaction assembly comprises a pre-reaction section and a riser section; the downer reaction assembly comprises a downer, and the downer is communicated with the lifting pipe; the separation circulation assembly comprises an axial-flow type gas-solid separator, a material storage accompanying bed and a connecting pipeline, an inlet of the axial-flow type gas-solid separator is communicated with an outlet of the downer, a gas phase outlet of the axial-flow type gas-solid separator is communicated with a gas phase area of the material storage accompanying bed, and a solid phase outlet of the axial-flow type gas-solid separator is communicated with a material storage area of the material storage accompanying bed. According to the invention, the riser reaction assembly and the downer reaction assembly are arranged, so that the gas-solid reaction of ultrafine particles mainly occurs in the dilute-phase bed section, the contact and mixing efficiency between gas and solid is effectively enhanced, and the common problems of insufficient gas-solid contact, adhesion between particles, heat exchange dead zone and the like in the dense-phase bed section are avoided.

The utility model provides a quartz crucible and a crystal pulling device, the quartz crucible comprises a crucible main body, the crucible main body comprises a bubble layer and a transparent layer, and the bubble layer is arranged on the outer side of the transparent layer; the top of the crucible main body is provided with a camber angle structure, the camber angle structure is composed of the top of the bubble layer and the top of the transparent layer, and the camber angle structure obliquely extends towards the lower portion of the outer side from the edge of an opening of the crucible main body. The top of the quartz crucible is arranged to be of the camber angle structure, in the repeated feeding process, the gathering amount of silicon particles on the top of the quartz crucible can be reduced, the risk that the silicon particles on the top of the quartz crucible fall into the quartz crucible, and consequently melt crystallization or single crystal line breakage is caused is reduced, and the yield of a single crystal silicon rod is increased.

The invention relates to a hydrogen peroxide production wastewater pretreatment method, and belongs to the technical field of wastewater treatment. The graphene oxide is used as a substrate material, some oxygen-containing functional groups such as hydroxyl, epoxy group and carboxyl are connected to the two-dimensional base plane of the graphene oxide, and the hydrophilicity is good. Carboxyl on graphene oxide and soluble ferric salt are subjected to a complex reaction under the high-temperature condition, the ferric salt covers the surface of the graphene oxide, graphene-loaded nano ferroferric oxide particles are synthesized, the agglomeration effect of nano ferroferric oxide can be reduced, the catalytic effect of nano ferroferric oxide is improved, the dosage of a catalyst is reduced, and the cost is reduced. In addition, a sulfonic acid-based ionic liquid is added in the process of synthesizing graphene nano ferroferric oxide, sulfonic acid groups are introduced into interlayers and the surface of graphene, and the introduction of the sulfonic acid groups increases the number of acidic active centers on the surface of the graphene, so that the catalytic activity, the selectivity and the reaction rate of the nano ferroferric oxide are improved; the catalytic oxidation effect is improved, and the wastewater treatment efficiency is improved.

The present application relates to the field of magnesium phosphate cement-based materials, and specifically discloses a preparation method of a waterproof and anti-permeation magnesium phosphate cement-based material and application thereof. The preparation method comprises the following steps: taking 80-100 parts by weight of magnesium phosphate cement, 5-8 parts by weight of a setting and hardening regulator, 10-14 parts by weight of a hydrophobic agent prepared by the present application, 7-10 parts by weight of modified graphene oxide and 30-40 parts by weight of active slag powder. After the above raw materials are uniformly mixed, 25-32 parts by weight of mixing water is added, and a magnesium phosphate cement-based material is obtained. The present application takes magnesium phosphate cement as the main component, and adds the hydrophobic agent, modified graphene oxide and active slag powder, so that the problems of insufficient waterproofness and anti-chloride ion erosion of the magnesium phosphate cement coating are overcome, and the magnesium phosphate cement-based material has good crack resistance and secondary protection capability, and can effectively resist the erosion of water and chloride ions.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a preparation method of a three-dimensional porous negative electrode material for an ultralow-temperature lithium iron phosphate battery. The method comprises the following steps: adding an ionic liquid modifier A, graphene oxide and an organic solvent into a reactor, and then adding porous silicon PSi to obtain a PSi-coated GO precursor; and heating the PSi-coated GO precursor to 600-900 DEG C under the protection of an argon atmosphere to obtain the three-dimensional porous negative electrode material. By adopting the three-dimensional porous negative electrode material prepared by the invention, the lithium iron phosphate battery can show excellent cycling stability at room temperature and low temperature.

The invention discloses a high-toughness anti-ablation hafnium-tantalum-carbon solid solution ceramic-based composite material and a preparation method thereof, and mainly solves the problems of low fracture toughness and poor ablation resistance of hafnium-tantalum-carbon solid solution ceramic in the prior art. According to the scheme, mixed powder of silicon carbide whiskers, hafnium carbide and tantalum carbide is sintered to obtain the silicon carbide whisker toughened hafnium tantalum carbon solid solution ceramic-based composite material, wherein the silicon carbide whiskers are uniformly distributed in the material; the preparation method comprises the following steps: mixing and ball-milling hafnium carbide and tantalum carbide powder to obtain hafnium carbide-tantalum carbide mixed powder; performing ultrasonic dispersion on silicon carbide whiskers, and adding the silicon carbide whiskers into the mixed powder to obtain whisker-containing powder which is uniformly mixed; finally, spark plasma hot pressed sintering is adopted, the whisker-containing powder obtained in the last step is placed in a graphite mold for high-temperature sintering, and the composite material is obtained. The fracture toughness of the hafnium-tantalum-carbon solid solution ceramic and the high-temperature thermal stability of an oxidation product of the hafnium-tantalum-carbon solid solution ceramic can be improved, and meanwhile the cracking resistance and ablation resistance of the hafnium-

The invention discloses a preparation method of a sensor probe for detecting optical environment pollution deposition, and belongs to the technical field of pollution detection.The preparation method comprises the steps that the surface of a QCM chip is coated with silicon dioxide colloid in a dip-coating mode, and the sensor probe with a silicon dioxide film on the surface is obtained; the mass density of the environmental pollutant surface deposited on the surface of the silicon dioxide film is detected through a sensor probe, so that the deposition of the organic pollutants in the optical environment is detected. The sensor probe prepared by the invention is high in molecular pollution sensitivity and good in stability, and can be used for early warning damage of optical elements in an optical system.

The utility model discloses ceramic membrane equipment for purifying nano powder. The ceramic membrane equipment comprises a cleaning tank, a dispersing tank and a ceramic membrane component, the output end of the cleaning tank is communicated with the input end of the ceramic membrane component through a material conveying pipeline; a material conveying pump is arranged on the material conveying pipeline; a concentrated solution pipeline is connected to one end, for outputting concentrated solution, of the ceramic membrane assembly, a dialysate pipeline is connected to one end, for outputting dialysate, of the ceramic membrane assembly, and a first control valve is arranged on the concentrated solution pipeline; the input end of the dispersing tank is communicated with the concentrated solution pipeline through a first backflow pipeline, the communicated position is located between the first control valve and the ceramic membrane assembly, and the output end of the dispersing tank is communicated with the cleaning tank through a second backflow pipeline; a second control valve is arranged on the first backflow pipeline, and an ultrasonic generating device is arranged in the dispersing tank. When the ultrasonic dispersion device is used, a concentrated solution can be guided to flow back into the dispersion tank, and the powder is quickly and uniformly mixed and dispersed by the ultrasonic generation device arranged in the dispersion tank, so that the agglomeration of the nano powder is reduced, and the granularity uniformity of the nano powder is ensured.

The embodiment of the invention provides a corrosion-resistant electromagnetic shielding material and a preparation method thereof, the corrosion-resistant electromagnetic shielding material is of a layered structure, and the corrosion-resistant electromagnetic shielding material sequentially comprises a conductive layer, an epoxy wave-absorbing layer and a first corrosion-resistant layer. The first corrosion-resistant layer comprises polyphenylene sulfide resin, epoxy fluorosilane modified graphene, polyether-ether-ketone resin and a dispersing agent. According to the corrosion-resistant electromagnetic shielding material provided by the invention, the polyphenylene sulfide resin is adopted as a matrix and has excellent corrosion resistance, the polyether-ether-ketone resin can improve and relieve the brittleness of the polyphenylene sulfide resin, and meanwhile, the epoxy-fluorosilane modified graphene can construct a continuous conductive network to assist in improving the electromagnetic shielding effectiveness; the graphene sheet layer can form a physical barrier network in a polyphenylene sulfide matrix, corrosion medium permeation is blocked, the corrosion resistance is further improved, a covalent bond can be formed between the epoxy group and the epoxy wave-absorbing layer, the interlayer binding force is improved, and the service life of equipment is prolonged.

This invention discloses a method for preparing nano-boehmite and its application in lithium-ion battery separators, belonging to the field of inorganic nanomaterial preparation technology. The method includes five steps: raw material calcination and activation, preparation of precursor slurry, hydrothermal synthesis reaction, washing and filtration, and drying and depolymerization. Calcination is carried out in a dynamic calcination furnace, whose exhaust mechanism can promptly remove water vapor. During discharge, the switching mechanism automatically opens the discharge cover, achieving continuous production with no material sticking to the wall and no residue. The obtained nano-boehmite is characterized by low sodium content, uniform particle size, and good dispersibility. This material can be formulated with binders and other agents to form a ceramic coating slurry. After coating and drying, a robust nano-ceramic coating is formed on the surface of a polyolefin-based membrane. This coating significantly improves the thermal stability, electrolyte wettability, and puncture resistance of the separator, thereby improving the battery's safety performance and cycle life.

The invention discloses a preparation method of a magnetic cottonseed protein nanosphere with high lipase loading capacity, and relates to the technical field of enzyme engineering and lipase loading in the biological industry, and the preparation method comprises the following steps: coating nano Fe3O4 particles by using plant polyphenol and cottonseed protein by using an anti-solvent method to obtain the magnetic cottonseed protein nanosphere; adding the magnetic nano-protein spheres into a lipase solution, loading lipase on the magnetic cottonseed protein nano-spheres by utilizing covalence and secondary action between plant polyphenol and cottonseed protein, and separating, washing and drying to obtain the magnetic cottonseed protein nano-spheres with high lipase loading capacity. According to the preparation method, the magnetic cottonseed protein nanospheres are prepared by coating Fe3O4 nanoparticles with an anti-solvent method, lipase is immobilized on the surfaces of the nanospheres through covalence and secondary action between plant polyphenol and protein, parameters are optimized, and the magnetic cottonseed protein nanospheres with high lipase loading capacity are obtained. The magnetic cottonseed protein nanospheres obtained by the invention can realize efficient catalysis and cyclic utilization of lipase.

The application relates to the technical field of building materials, and discloses a mortar containing nanomaterials and a preparation method thereof, the mortar being composed of 70-80 parts by weight of cement, 8-12 parts by weight of fly ash, 0.4-0.5 parts by weight of a polycarboxylate water reducing agent, 0.4-0.6 parts by weight of hydroxypropyl methylcellulose, 1-2 parts by weight of nanomaterials, 2-3 parts by weight of modified silk fibroin and 40-50 parts by weight of water. The modified nanosilica is modified by gamma-aminopropyl triethoxysilane, the modified cubic nanometer calcium carbonate is modified by fumaric acid, sodium stearate and palmitic acid, and the modified silk fibroin is prepared by being grafted and modified by a double-aminopropyl-terminated polysiloxane. The mortar is treated by optimizing component collocation, modifying the nanomaterials and the silk fibroin, the mechanical properties, the durability and the crack resistance of the mortar are remarkably improved, and the cost is controllable.

The invention belongs to the technical field of coating preparation, and particularly relates to a high-hardness glaze coating and a preparation method thereof.The high-hardness glaze coating is prepared from, by mass, 20-30% of silicon fluoride acrylic emulsion, 5-20% of potassium silicate liquid, 8-35% of composite filler, 2-8% of functional additive, 2-6% of coalescing agent and 20-60% of water; wherein the composite filler is prepared from titanium dioxide, silicon dioxide, bentonite and attapulgite as raw materials. The prepared glaze coating is high in hardness, good in cracking resistance, water resistance and weather resistance and good in comprehensive performance.

The present invention discloses a phosphorylated microcrystalline cellulose-modified molybdenum disulfide aerogel material and a preparation method and application thereof. The preparation method comprises the following steps: S1. adding phosphorylated cellulose and molybdenum disulfide nanosheets into an ionic liquid and mixing to obtain a mixture; S2. adding a cross-linking agent polyethyleneimine to react to obtain a hydrogel, removing impurities and freeze-drying to obtain a phosphorylated microcrystalline cellulose-modified molybdenum disulfide aerogel material. The present invention uses polyethyleneimine to form a stable gel network structure by cross-linking phosphorylated cellulose and molybdenum disulfide nanosheets, thereby achieving uniform dispersion and stabilization of molybdenum disulfide in the material; and polyethyleneimine contains many amino groups that are beneficial to the adsorption of organic matter, which can effectively improve the adsorption performance of the material. The aerogel material has a simple preparation process, can adjust the shape according to different working conditions, has the characteristics of high adsorption capacity, green environmental protection, and recyclability, and has good application prospects in dye wastewater treatment.

This invention discloses a low-serum MDCC-MSB1 (MSB1) suspension culture medium and an inactivated chicken infectious anemia virus (TIV) vaccine. The culture medium comprises amino acids, carbon source, additives, vitamins, inorganic salts, buffer salts, and water, and further contains newborn calf serum (NBCS). Using this medium, low-cost, high-density suspension culture of MSB1 cells can be achieved, significantly improving cell culture stability. After 30 consecutive passages at a 1% volume ratio of NBCS, the viability of MSB1 cells remains above 94%, with uniform cell morphology and a clumping rate of <3%, making it suitable for large-scale bioreactor production. Furthermore, when applied to the preparation of an inactivated chicken infectious anemia virus vaccine, it can comprehensively improve virus propagation efficiency, increasing virus production efficiency by more than 25%, with a virus titer of not less than 1.0 × 10⁻⁶. 8.0 TCID 50 / ml, ensuring stable quality in large-scale production.

The invention provides a high-grade resin lead core manufactured based on a magnetic material and a manufacturing method, and the manufacturing method comprises the steps that thermosetting resin and thermosetting resin are added into a solvent, a high-speed stirrer is used for stirring to enable the thermosetting resin to be dissolved, and a first mixed solution is obtained; adding a coloring agent, magnetic particles and a plasticizer into a solvent, quickly stirring, placing in an environment lower than zero DEG C for 1-10 hours, taking out, heating to 90-95 DEG C, and cooling to room temperature to obtain a second mixed solution; and adding the second mixed solution into the first mixed solution, stirring and evaporating the solvent at room temperature to 150 DEG C, grinding by using a three-roller mill to discharge moisture, and extruding a lead bar by using an extruder. According to the method, the agglomeration effect of the magnetic particles can be effectively reduced, so that the magnetic particles are not prone to falling off from graphite, and the magnetic particles have excellent mechanical properties such as bending strength and impact strength.