164results about How to "Mix and disperse evenly" patented technology

The invention discloses a fluorophosphate lithium ion-electron mixed conductor modified lithium cobaltate composite material and a preparation method thereof, and relates to the fields of lithium ion battery positive electrode materials and preparation methods thereof. The technical problems to be solved in the invention are poor cycle performance, poor rate performance and poor compatibility with an electrolyte of lithium cobaltate positive electrode materials under a high voltage of 4.55V. The composite material is a lithium cobaltate positive electrode material coated with a layer of lithium-containing fluorophosphate, wherein the coated lithium cobaltate positive electrode material is a layered material and has chemical formula is LiCo1-xMxO2, x is not less than 0 and not more than 0.2, the chemical formula of the coating layer material is LiM'PO4-yF1+y, and y is not less than 0 and not more than 1.2. The method comprises the following steps: 1, preparation of a coating layer material solution; 2, preparation of a slurry; 3, drying; and 4, sintering. The preparation method has the advantages of simplicity, low cost, and easiness in industrialization realization. The fluorophosphate lithium ion-electron mixed conductor modified lithium cobaltate composite material is used for making lithium ion secondary batteries.

The invention discloses a feeding high temperature-resistant microcapsule yeast probiotics preparation as well as a preparation method and application thereof, and belongs to the technical field of feed additives. The feeding high temperature-resistant microcapsule yeast probiotics preparation is prepared by the steps such as fermenting, centrifuging, cleaning, carrier and protective agent adding, extruding, rolling and pelletizing, drying and the like. The feeding high temperature-resistant microcapsule yeast probiotics preparation prepared by the method disclosed by the invention is more uniform in particle size and good in storage stability, has better heat resistance, can tolerate processing conditions such as high temperature and high humidity in a feed pelletizing process, has a higher rate of survival. The rate of survival is kept over 90%, and viable count of probiotics is over 5*10<9>cfu/g.

Disclosed is a method for preparing carbon-containing inorganic materials-polymer composite materials, which has the following steps: a. preparation of organic phase, 0.01-100 portions of polymer monomers by weight are added into organic solvent to form the organic solution of polymer monomers; b. preparation of inorganic phase, 1 portion of carbon-containing inorganic material is dispersed or dissolved in water to form aqueous solution, and then the polymerization agent of polymer monomers in step a is added into the aqueous solution to form inorganic solution; the polymerization agent is non-reactive with water and the addition amount of the agent enables full polymerization of the polymer monomers in step a; c. the inorganic solution in step b is slowly added to the organic solution in step a, and the two solutions are fully mixed and reacted to generate complex colloid; the colloid is then filtered, washed and dried so as to get the polymer composite materials. The method is simple to operate and has high yield, which is suitable for large-scale industrial production; the prepared composite materials are of good performance.

The invention discloses a lithium ion-electron mixed conductor modified ternary anode material and a preparation method. A layer of lithium-containing phosphate is arranged on the surface of the ternary anode material, a main ingredient magnesium lithium phosphate of the coating layer serves as a lithium ion conductor material and has better lithium ion electric conductive performance, and electronic conductivity of the coating layer can be improved by doping trivalent and tetravalent metal ions or F ions; thus, the coating layer has better lithium ion and electron conduction performance at the same time. The modified ternary anode material can work under higher voltage and remarkably improve battery capacity; furthermore, cycle performance, rate capability, overcharging performance and safety performance of the modified ternary anode material are greatly improved.

The invention relates to an oil-resistant irradiation-crosslinking low-smoke halogen-free flame-retardant polyolefin material for locomotive wires and cables, belonging to the technical field of high-polymer materials for wires and cables. The oil-resistant irradiation-crosslinking low-smoke halogen-free flame-retardant polyolefin material for locomotive wires and cables is prepared from the following raw materials in parts by weight: 50-80 parts of ethylene-vinyl acetate copolymer, 15-30 parts of high-polymer compatilizer, 5-25 parts of metallocene linear low density polyethylene, 120-150 parts of inorganic flame retardant, no more than 10 parts of flame-retardant synergist, 5-25 parts of electric property modifier, 2-5 parts of crosslinking assistant, 2-3 parts of antioxidant, no more than 1 part of copper inhibitor and 2-3 parts of lubricant. The polyolefin material has the advantages of low smoke, no halogen, environment friendliness, favorable oil corrosion resistance and favorable thermal aging resistance, is beneficial to ensuring excellent mechanical properties, electric properties and light transmittance, is beneficial to embodying ideal extrudability, and can enable the prepared wire and cable to satisfy the single vertical burning test or bunched cable burning test according to the standard requirements.

The invention discloses a low-smoke flame-proof non-halogen cable material and preparing method, which comprises the following steps: blending polyphosphoric ammonia and zinc boride evenly; spraying and cladding the composite material through coupler; adding middle-density polyethylene, copolymer, functional nylon, compatible agent, anti-oxidant and lubricant to stir evenly; transmitting composite material into concurrent twin-screw extruder to fuse; graining after winding to obtain the product.

The invention relates to the technical field of ceramic tiles, in particular to a three-dimensional glazed tile made of scraping waste and a manufacturing method thereof. The manufacturing method includes the following steps of A, drying a green body, specifically, the temperature of the green body is raised to 130-160 DEG C for drying; B, applying engobe, specifically, the engobe is performed onthe surface of the dried green body; C, carrying out pattern decoration, specifically, the pattern decoration is carried out on the surface, coated with the engobe, of the green body, and the green body is then dried; D, spraying transparent glaze slip, specifically, the transparent glaze slip is sprayed on the surface of the dried green body; and E, spreading ceramic particles, specifically, theceramic particles are spread on the surface, sprayed with the transparent glaze slip, of the green body, and then, the green body is fired to manufacture the three-dimensional glazed tile, and the rawmaterials for manufacturing the ceramic particles include scraping recovery materials. According to the method, the operation steps are easy to control, the production efficiency is high, the production cost is low, and the energy consumption is saved; the recycling rate of the waste raw materials is increased, no solid waste is generated, and the three-dimensional glazed tile is environmentallyfriendly; and the manufactured three-dimensional glazed tile has distinct layers, obvious dry granular feeling and good three-dimensional effect.

The invention discloses blended non-woven fabric and a preparation technology thereof. The blended non-woven fabric comprises the preparation raw materials of degummed silk protein fiber and degummed natural vegetable fiber, wherein the mass ratio of the degummed silk protein fiber to the degummed natural vegetable fiber is (20:80) to (80:20). The blended non-woven fabric not only has the advantages of softness, skin protection and skin favorableness of silk, but also has the elasticity and water absorption of fiber. The blended non-woven fabric is simple in preparation technology, and can be widely applied to industrials of facial masks, sanitary towels, sanitary pads, paper diapers, cosmetics, respirators, hygienic products and medical supplies.

The invention discloses nano-polymer compound modified asphalt. The nano-polymer compound modified asphalt comprises a nanomaterial, a polymer and matrix asphalt, wherein the nanomaterial is one or two of nano SiO2 particles and bentonite, and the polymer is one or two of styrene-butadiene-styrene block copolymer and butadiene styrene rubber. The invention further discloses a preparation method of the nano-polymer compound modified asphalt. The prepared compound modified asphalt is obviously improved in high-temperature performance and low-temperature performance compared with the matrix asphalt.

The invention discloses the preparation method of grapheme/aluminum composite material monofilament for cables. The preparation method comprises the following steps of preparing a graphene dispersionliquid and a nano aluminum powder dispersion liquid; mixing the nano aluminum powder dispersion liquid and the graphene dispersion liquid, and pressing into a plurality of nano aluminum powder-graphene prefabricated blocks; putting pure aluminum into an induction furnace, pressing the nano aluminum powder-graphene prefabricated blocks into an aluminum melt by using a graphite cover, then cooling the graphene aluminum melt, and pouring the graphene aluminum melt into a metal mold; heating the obtained grapheme/the aluminum composite material ingot, and carrying out extrusion deformation treatment to obtain a grapheme/aluminum composite material rod piece; annealing the grapheme/aluminum composite material rod piece, then carrying out 12 times of room-temperature drawing deformation to obtain the grapheme/aluminum composite material monofilaments, and finally annealing to obtain the grapheme/aluminum composite material monofilaments for the cables. The preparation method solves the problem that the conductivity of the graphene/aluminum composite material is reduced due to graphene agglomeration.

The invention discloses a method for preparing chrome plated graphene/copper composite powder. The method particularly includes the steps that a chromium sulfate solution is added into a graphene oxide solution, chemical chrome plating is carried out, and a chrome plated graphene mixed solution is obtained; copper powder is added into the chrome plated graphene mixed solution to be evenly scattered, hydrazine hydrate is added, and a reduction reaction is made; and a mixed solution obtained after reaction is subject to centrifugation and washing, precipitates are dried, and the chrome plated graphene/copper composite powder is obtained. According to the method, surface modification is carried out through chemical chrome plating on graphene, chrome particles are inserted into graphene layers, and therefore the graphene is not prone to agglomeration when the graphene and the copper powder are mixed. The chrome plated graphene/copper composite powder is prepared through the chrome plated graphene, mixing and scattering are more even, and a graphene enhanced copper-based composite material with even texture and higher strength and conductivity is better obtained.

The invention discloses a special emulsion paint for spraying, comprising the following ingredients in parts by weight: 280-310 parts of water, 5-6 parts of sodium salt dispersing agent, 0.5-1.5 parts of wetting agent, 2.5-4.5 parts of high polymer defoaming agent, 160-190 parts of anatase titanium dioxide, 90-110 parts of calcined kaolin, 70-80 parts of light calcium carbonate, 90-110 parts of heavy calcium carbonate, 45-55 parts of talcum powder, 2.5-3.5 parts of hydroxyethylcellulose, 1.5-2.5 parts of multifunctional additive, 140-160 parts of styrene-acrylic emulsion, 7.5-9.5 parts of film forming additive, 14-16 parts of propylene glycol, 1-2 parts of preservative, 2-4 parts of mildew preventive, 9-11 parts of leveling agent and 2-4 parts of thickener. The special emulsion paint disclosed by the invention has the advantages of low viscosity, strong adhesion, spraying availability, convenience for construction, improved construction efficiency, good leveling property and better using effect.

The invention discloses a titanium phosphate composite material and a preparation method and application thereof. The method comprises the steps of: enabling a lithium source, a titanium source, a phosphorus source and a carbon source to be subjected to dry ball milling I, and obtaining mixed powder I; mixing the mixed powder I with an additive aqueous solution, and drying to obtain a mixed material; carrying out dry ball milling II on the mixed material to obtain mixed powder II; and sintering the mixed powder II to obtain the carbon/titanium phosphate composite material. The method is simplein process and easy to operate, uniform dispersion of the raw materials during mixing can be guaranteed through dispersion of the additive aqueous solution in the method, the hardness of dried material particles can be reduced, and the whole preparation process is green, environmentally friendly and free of pollution; and when the titanium phosphate composite material prepared by adopting the method is used as a negative electrode of an aqueous lithium ion battery, the specific capacity of a half battery is close to 88mAh/g, and obvious attenuation is avoided after 100 cycles.

The invention relates to water-base polyurethane coating for fan blades and a preparation method thereof. The water-base polyurethane coating comprises component A and component B by weight proportion of 5:1. The component A comprises deionized water, anti-settling agents, wetting dispersant, defoaming agents, rutile type titanium dioxide powder, carbon black, precipitated barium sulphate, acrylic dispersion, filming auxiliary, flatting agents and thickeners, and the component B comprises hydrophilic modified polyether HDI (hexamethylene diisocyanate) trimer, modified polyester HDI trimer and propylene glycol methyl ether acetate. By taking water as a main dispersion medium, the water-base polyurethane coating for the fan blades has the advantages of low VOC (volatile organic compounds) release, light smell, low harms on human bodies, non-combustible property, unique safety in storage, transport and use, excellent performance and the like, and further, safety potential hazards caused by accumulation of a great quantity of harmful solvents can be eliminated, and physical and psychological health of constructors are benefited greatly.

The invention discloses a portable thermal-insulation cup, and belongs to the technical field of articles of daily use. The portable thermal-insulation cup comprises a cup body, an inner cup lid, an outer cup lid, a locking device, a detection device, a base, an infrared sensing switch and a controller; the cup body is internally provided with an inner cavity, the inner cup lid is arranged at the upper portion of the cup body, and the outer cup lid is hinged to the upper portion of the inner cup lid, and is provided with a first lug which is matched with the locking device to lock the outer cup lid; the locking device comprises a second lug, a pressing rod, an electromagnet, an elastic part and a second overturn shaft; the detection device is inset at the upper edge of the inner cup lid; the base is arranged at the bottom of the cup body, and is provided with an electric appliance mounting cavity; the infrared sensing switch is arranged at the outer circumference surface of the base; the controller is arranged in the electric appliance mounting cavity. According to the portable thermal-insulation cup, automatic opening and locking of the outer cup lid are achieved, and the problem that the cup opening is easily contaminated when a lid of a traditional thermal-insulation cup needs to be unscrewed with hands is solved.

The invention relates to a spherical styrene-butadiene rubber material for 3D printing. The material is characterized in that a structural core is polystyrene microspheres; the material is prepared from, by weight, 5-20 parts of polystyrene microspheres, 60-80 parts of butadiene monomers, 20-30 parts of styrene monomers, 0.2-1 part of an emulsifying agent, 0.02-0.5 part of an initiator, 0.02-0.1 part of a terminating agent and 80-120 parts of a filling material. Styrene-butadiene rubber latex is prepared through a seeding emulsion polymerization method in which the polystyrene microspheres serve as the core and the polystyrene microspheres, the butadiene monomers and the styrene monomers are grafted and copolymerized, the styrene-butadiene rubber latex and the filling materials are coagulated into powder, the particle size is 10-100 micrometers, particle size distribution is narrow, performance is uniform and stable, and the spherical styrene-butadiene rubber material can be directly applied as a 3D printing material.

The invention discloses a low-VOC (volatile organic compound) high-strength preservative-containing oil-resistant paint process system which comprises a vertical paint dispersion tank. A coarse mixingcavity is concentrically formed in the inner upper portion of the paint dispersion tank, a columnar conveying cavity is concentrically formed in the inner lower portion of the paint dispersion tank,a tapered dispersion conical cavity is concentrically formed in the inner middle of the paint dispersion tank, the coarse mixing cavity is concentrically communicated with the upper end of the dispersion conical cavity, and the lower end of the dispersion conical cavity is concentrically communicated with the upper end of the conveying cavity. The system is simple in structure, and paint in the paint dispersion tank is more uniformly dispersed and mixed by an internal circulation stirring refined system.

The invention relates to a continuous posthydrolysis method for polyacrylamide. The continuous posthydrolysis method comprises the following steps: homopolymerizing aqueous solution of the acrylamide to obtain high molecular weight polyacrylamide gel blocks; after one-time granulation, adding a dispersing agent I accounting for 1-1.5 percent of the total weight of the gel blocks during passing through a double-ribbon hydrolyzer and uniformly mixing; then adding alkaline as a hydrolytic agent and uniformly mixing the alkaline and colloidal particles; after uniformly mixing, adding a dispersing agent II accounting for 0.8-1.2 percent of the total weight of the gel blocks and uniformly dispersing; finally, enabling the mixture to enter a hydrolysis tank for hydrolysis; besides, keeping the hydrolysis tank at a certain material level for avoiding the influence on continuous operation of the granulation on the next station. With the addition of the dispersing agent I, the colloidal particles are prevented from being easily bonded and aggregated; the dispersion is uniform, so that the resistance for uniform mixing of the colloid and the hydrolytic agent is reduced, and the uniform mixing time of the colloid and the hydrolytic agent is shortened; with the addition of the dispersing agent II, the colloid and the hydrolytic agent can be mixed more sufficiently, and a hydrolysis reaction is realized more thoroughly. The amount of residual monomers and the content of water insoluble matters are effectively reduced, the molecular weight and the solubility of products are improved, and the viscosity of the products is improved.

The invention relates to the field of building materials, aims at solving the problem that bare concrete is prone to be corroded by rainwater and provides bare concrete. The bare concrete is preparedfrom the following ingredients in parts by mass: 7.5 to 10 parts of water, 15 to 20 parts of Portland cement, 45 to 60 parts of sand, 60 to 80 parts of stone, 0.75 to 1 part of a water reducing agent,3 to 4 parts of carbon fiber, 10.5 to 14 parts of rubber emulsion and 3.75 to 5 parts of a silane coupling agent. The carbon fiber is added into the bare concrete; the carbon fiber has the characteristics of soft outside and rigid inside, and the carbon fiber further has outstanding corrosion resistance; thus, corrosion resistance of the bare concrete is improved, and prolongation of service lifeof the bare concrete is facilitated.

The invention discloses a stirring device for buildings and a working method thereof. The stirring device comprises a stirring barrel, wherein a stirring motor is arranged at the center of the top surface of the stirring barrel; an output end of the stirring motor is connected with a stirring shaft; the bottom end of the stirring shaft penetrates to the position above the bottom surface in the stirring barrel; stirring blades are arranged at the bottom section of the stirring shaft; a plurality of feeding hoppers distributed in an array are embedded in the top surface of the stirring barrel; the bottom ends of the feeding hoppers are connected with a feeding device positioned in the stirring barrel; an output end of the bottom of the feeding device is connected with a discharging pipe; a plurality of air inlet pipes distributed in an array are connected to the side wall of the stirring barrel in a penetrating mode; one ends, in the stirring barrel, of the air inlet pipes are positionedbelow the discharging pipe; and an air blower is arranged on the outer side wall of the stirring barrel. According to the stirring device and the working method, continuous feeding, blowing, water replenishing and stirring of concrete ingredients can be achieved, and the stirring device is simple to use, high in working efficiency and better in stirring quality.