485results about How to "Dispersed" patented technology

The invention relates to a water-based primer-topcoat braking paint and a preparation method thereof. The braking paint comprises the following materials by weight percentage: 30-40 of water-based acrylic resin, 2-10 of amino resin, 1-3 of neutralizing agent, 2-5 of compound rustproofing pigment, 1-3 of tinting pigment, 10-20 of filling agent, 0.1-0.5 of defoaming agent, 0.1-0.5 of flatting agent and 25-40 of deionized water, wherein the water-based acrylic resin is a free radical polymerization resultant which comprises the following materials by weight percentage: 10-30 of monomer containing hydroxy acrylic acid, 5-20 of monomer containing carboxyl acrylic acid, 2-8 of internal crosslinking monomer, 20-40 of other acrylic acid monomer, 15-30 of phenyl ethylene monomer, 1-5 of evocating agent and 40-50 of alcohol ether latent solvent. When the paint is prepared, the dispersion and the abrading condition of the pigments and the filling agents are reasonably controlled to ensure that each component of the paint fully plays the respective function. The paint ensures the corrosion prevention effect and the decoration of a coating and realizes the combination of a primer and a topcoat.

The invention relates to a complex combination alumina-carborundum-(carbon) series amorphous fire proof material, and the formula comprises: 36 to 32 percent of 8-3mm corundum or bauxite, 18 to 26 percent of 3-1mm corundum or bauxite, 10 to 22 percent of 1-0.0088mm corundum or bauxite, 0 to 15 percent of 1-0.088mm carborundum, 0 to 3 percent of 1-0.0088 spherical asphalt, 0 to 20 percent of d90 less than 0.088mm corundum or bauxite, 0 to 20 percent of d90 less than 0.088 carborundum, 0 to 3 percent of d90 less than 0.088mm high-carbon materials, 0 to 5 percent of alpha alumina micro powder, 1 to 8 percent of alumina hydrate, 1 to 6 percent of silicon ash, 0 to 2 percent of calcium aluminate cement, 0.05 to 0.4 percent of plus super-plasticizer (polycarboxylic acids+sulfonated naphthalene formaldehyde polymer+sulfonated melamine polymer), 1 to 6 percent of plus polypropylene acid series latex and 1 to 6 percent of plus water. Compared with low-cement aluminum carborundum carbon material, the material has good anti-corrosion performance. Therefore, the service life of a kilneye of a cement kiln and a main groove slag line of a blast furnace can be prolonged when a product is combined by the complex combination alumina-carborundum-(carbon) series amorphous fire proof material instead of the cement.

The invention relates to the technical field of PVC (polyvinyl chloride) composite materials, and particularly relates to a high-temperature resistant flame-retardant environment-friendly PVC (polyvinyl chloride) modified material and a preparation method thereof. The alloy material comprises the following raw materials in parts by weight: 80-120 parts of PVC resin, 15-45 parts of filler, 25-55 parts of plasticizer, 5-10 parts of flame retardant, 2-10 parts of stabilizer, 2-10 parts of impact modifier, 1-2 parts of lubricant and 0.1-1.0 part of antioxidant. The raw materials are weighed and mixed according to the parts by weight; then the mixture is stirred and extruded and granulated by a twin-screw extruder; and the alloy material is obtained by cutting and air cooling. The alloy material provided by the invention is high-temperature resistant and environment-friendly, and has high strength, high flame retardance, strong compression performance and toughness, good processing performance, excellent comprehensive performance and wide application prospects. The preparation method provided by the invention is simple in technology and convenient to operate and control, realizes stable quality and high production efficiency, and can be applied to large-scale industrial production.

The invention discloses a polyaniline anti-corrosion coating for underwater or wet surfaces. The anti-corrosion coating comprises a component A and a component B in parts by weight. The component A comprises 30-60 parts of epoxy, 5-20 parts of resin modifiers, 3-10 parts of polyaniline, 0.5-5 parts of corrosion inhibitors, 1-2 parts of additives, 20-30 parts of pigment filler; The component B comprises 14-30 parts of curing agent. The preparation method comprises the following steps of adding wetting agent and dispersing agent into polyaniline to allow the surface of polyaniline to be sufficiently moistened; sequentially adding epoxy, resin modifiers, pigment filler and corrosion inhibitors, stirring and then adding polyaniline which is subjected to surface treatment, stirring, evenly dispersing, adding leveling agent and defoamers; grinding to obtain the component A having a particle size of less than 35mum; the curing agent is taken as the component B. The polyaniline anti-corrosion coating prepared by the invention is non-toxic and has no pollution on the human body and is environmentally friendly and has not only good underwater adhesion, lasting corrosion resistance, and smooth surface. The coating is flexible and elastic.

The invention discloses a preparation method for a colorless transparent high-temperature-resistant polyimide nanometer composite film, which belongs to the field of polymeric materials. The preparation method comprises the following steps: reacting 4,4-biscyclohexyl diformyl chloride (BCCL) with hexafluorobenzidine (TFDB) so as to prepare semi-aromatic fluorodiamine precursor; then subjecting the precursor, TFDB, 4,4'-(hexafluoroisopropenyl)diphthalic acid anhydride (6FDA) and hydrogenated 3,3,4,4-biphenyl dianhydride (HBPDA) to copolymerization so as to prepare polyamide acid precursor; grafting the polyamide acid precursor to a silane coupling agent in situ and carrying out aging and hydrolysis in a mixed solution of tetramethoxysilane (TMOS) and tetraethoxysilane (TEOS) so as to obtain a polyamide acid/silica mixed solution; and subjecting the mixed solution to tape casting and drying so as to obtain a polyimide/SiO2 composite film.

The invention discloses an antirust and a preparation method and an application thereof. The antirust comprises corrosion inhibitor, film-forming agent, dispersant, synergist with active groups on the surface, and solvent; the weight ratio of the corrosion inhibitor, the film-forming agent, the dispersant and the synergist with the active groups on the surface is 1:0.005 to 0.5:0.002 to 0.4:0.001 to 0.3, and the weight ratio of the solvent to the corrosion inhibitor is 100:0.01 to 50. Modifier is added into the antirust disclosed by the invention to carry out surface modification treatment on the synergist, so that the surface of the synergist is grafted with the active functional groups, such as -OH and -NH3, consequently, the binding force between the antirust and a base material is enhanced, the antirust time is prolonged, and thereby the antirust effect is enhanced. The antirust disclosed by the invention is basically applicable to the surfaces of various iron-based, aluminium-based and copper-based materials, moreover, brushed, sprayed or immersed base materials have excellent corrosion resistance, durability and high adhesive force; the process of the preparation method is mature, the production cost is low, the production process is green and harmless, and therefore the preparation method is suitable for popularization and application on a large scale.

The invention provides a heavy metal contaminated soil restorative agent. The restorative agent is prepared from the following components in weight ratio: 20-30 percent of biomass charcoal, 30-50 percent of quick lime, 10-20 percent of molecular sieve, 10-20 percent of sodium bentonite, 1-10 percent of polyepoxysuccinic acid and 1-10 percent of sodium lignin sulfonate. A preparation method for the heavy metal contaminated soil restorative agent comprises the following steps: firstly, mixing the biomass charcoal, quick lime, molecular sieve, sodium lignin sulfonate and sodium bentonite in mass ratio to obtain a mixture; and then, adding the polyepoxysuccinic acid into the mixture in mass ratio to stir and uniformly mix, thereby obtaining the prepared soil restorative agent. The prepared soil restorative agent has good effect in restoring the cadmium, lead and zinc compound contaminated soil.

The invention discloses a complex water-retaining synergistic chemical fertilizer which is composed of the following constituents by weight proportion: 88%-92% of nitrogenous fertilizer, 1%-2% of laurinol oxethyl ammonium sulfate, 1%-2% of water-retaining agent, 2%-3% of complex biological bacteria, 1%-2% of humic acid, 1%-2% of zeolite powder and 1%-2% of bentonite. The complex water-retaining synergistic chemical fertilizer provided by the invention can be used for effectively improving the soil aggregate structure, eliminating the soil hardening and enhancing the soil permeability, thereby enhancing the fertilizer utilization rate, increasing the soil water-retaining ability, improving the soil structure, promoting the crop growth and improving the crop quality.

The invention discloses a screening agent for improving negative effect of clay on a cement concrete system of a polycarboxylic acid-doped water reducer and a using method thereof, wherein the screening agent is mixed from the following materials in parts by weight: 35-55 parts of sodium metasilicate pentahydrate, 30-50 parts of sodium tripolyphosphate, 7-15 parts of polyethylene glycol, 3-8 parts of sodium humate and 5-10 parts of sodium polyacrylate. When the screening agent is used for production of cement paste, cement mortar and concrete, the screening agent of the corresponding mass proportion only needs to be added, so that effect of improving the negative effect of clay on the cement concrete system of the polycarboxylic acid-doping water reducer can be achieved, and working performances such as liquidity, and the like, of the cement concrete system of clay can be effectively improved; and meanwhile, mechanical performances such as strength, and the like, of the system cannot be lowered.

The invention provides a children coating and a preparation method of the children coating. The children coating provided by the invention comprises the following raw materials: wood fibers, a purified emulsion, kieselguhr, an anion additive, titanium dioxide, triple superphosphate powder, a dispersing agent, a wetting agent, a defoaming agent, a thickening agent, a preservative, a mildew preventive and tap water and the like. The wood fibers are added into the environmentally-friendly children coating by the invention so as to change the structure and the texture of a surface of a paint film, thereby feeling soft and smooth; and in addition, the porosity of the paint film is improved by the wood fibers in the paint film, the breathable performance is good, the quantity of heat and the transmission capacity of voice are reduced, and a good humidifying function can be created by the gaps of the paint film.

The invention relates to a method for preparing an aluminum oxynitride transparent ceramic through gel casting. The method comprises the following steps: (1) ball-milling and mixing aluminum oxynitride powder, a dispersing agent and absolute ethyl alcohol, adding a hydration-resisting agent, performing hydration-resisting treatment, drying and sieving to obtain aluminum oxynitride powder processed by the hydration-resisting treatment, wherein the mass ratio of the aluminum oxynitride powder, the dispersing agent and the hydration-resisting agent is 100:(0.1-5):(0.1-5); (2) mixing the aluminum oxynitride powder processed by the hydration-resisting treatment, a water-soluble isobutene polymer and water to obtain a water-base slurry, wherein the mass ratio of the aluminum oxynitride powder processed by the hydration-resisting treatment, the water-soluble isobutene polymer and the water is (10-80):(0.1-5):100; (3) performing vacuum degassing on the base-base slurry, injecting the degassed base-base slurry into a mold, performing self-gel curing to obtain a biscuit, and drying the biscuit; (4) presintering the dried biscuit, and performing pressure-less sintering to obtain the aluminum oxynitride transparent ceramic.

The invention belongs to the technical field of soil improvement and particularly relates to an ecological soil conditioner capable of improving acid soil and a preparation method. The ecological soil conditioner comprises raw materials in parts by weight as follows: 30-60 parts of carbonized distillers' grains, 10-20 parts of industrial and agricultural waste, 10-15 parts of sargassum, 10-15 parts of water hyacinth, 5-10 parts of plant ash, 5-15 parts of nano-modified clay, 5-10 parts of sodium alginate, 1-10 parts of tamarind polysaccharide gum, 1-5 parts of chelated secondary elements and trace elements and 0.1-3 parts of graphene oxide. The ecological soil conditioner can regulate the pH value of the soil, promote granular structure formation of the soil, improve the physical and chemical structures of the acid soil, increase organic matter content of the soil, improve the moisture and fertilizer retention capacity, improve physical characteristics of the soil, creates a good ecological environment for plant growth, is excellent, meets the organic and pollution-free agricultural development trend and has larger popularization and application value.

The invention discloses a scale inhibitor for salt manufacture, which is prepared from the following components in percentage by weight: 25 to 30 percent of crylic acid-acrylate-sodium allylsulfonate multiple copolymer, 40 to 50 percent of polyaspartic acid, 10 to 15 percent of sodium gluconate, and 5 to 10 percent of water. The scale inhibitor for salt manufacture, disclosed by the invention, issuitable for the salt and Glauber salt co-production industry, as well as sugar manufacture and monosodium glutamate manufacture industries, can prevent a heat exchange tube in a pre-heater and a heat chamber from scaling, and guarantees the scale inhibitor with heat transfer effect for salt manufacture.

The invention discloses a preparation method of black iron oxide particles with corrosion inhibition performance. The method comprises the following steps of: dissolving urotropin, ethyl hydroxy ethylcellulose and lauryl sodium sulfate in deionized water according to the definite weight ratio, thereby obtaining a viscous liquid; putting black iron oxide into a granulating machine for granulating while evenly spraying the viscous liquid onto the black iron oxide powder at the same time, thereby forming small black iron oxide particles; and drying and screening the small black iron oxide particles, thereby obtaining a finished product. According to the method, the black iron oxide is modified by the urotropin and other components, so that the corrosion inhibition performance of the black iron oxide is enhanced; and the liquidity and the dispersibility of a black iron oxide pigment are realized. The produced black iron oxide has the characteristics of being excellent in temperature resistance, good in acid and alkali resistance, strong in light absorption, high in tinting strength, good in compatibility and dispersibility and the like, thereby being wide in market prospect.

The invention relates to the technical field of current collectors for lithium ion batteries, and discloses a carbon-coated aluminum foil for lithium ion batteries. The coating products of the conductive coating of the carbon-coated aluminum foil include conductive agent, binder and solvent. The conductive agent includes graphene and at least one of carbon black, carbon nanotubes and layered conductive graphite. The binder includes at least one of polyacrylate, polyurethane, epoxy resin, polyacrylonitrile, styrene-butadiene rubber and sodium carboxymethyl cellulose. The solvent includes at least one of water and anhydrous ethanol. The carbon black and the graphene are modified by polyvinylpyrrolidone grafting. Graphene is used as a conductive agent, which can make the conductive coating have high thermal conductivity and improve the heat dissipation performance of batteries. Polyvinylpyrrolidone is grafted onto the surface of the conductive agent, which reduces the surface free energyof the conductive agent, increases the steric hindrance and makes the grafted and modified conductive agent have high dispersion stability.

The invention provides a highly clear and instant psidiumguajava tea and a preparation process, wherein the tea is produced by mainly adopting fresh or dried young fruit psidiumguajava as a raw material, and has characteristics of convenient production and taking, high safety and no toxic-side effect. According to the present invention, the fresh or dried young fruit psidiumguajava is mainly adopted as the raw material, and cleaning, grinding, ultrasonic enhanced solvent extraction, concentration, purity removing, membrane separation and enrichment, paste forming, spray drying and granulation are performed to obtain the instant psidiumguajava tea; compared with the previous psidiumguajava tea product, the product of the present invention and the preparation process thereof have the following characteristics that: the psidiumguajava fruit, especially the young fruit discarded in the production process is adopted as the raw material to change waste into treasure and obtain the instant psidiumguajava tea product; the psidiumguajava young fruit water extract has a good clinical blood sugar lowering effect, and the preparation process has characteristics of high product yield, low preparation cost, more flavor substance maintaining, and the like; and the highly clear and instant psidiumguajava tea has characteristics of convenient taking, high nutrition and high active ingredient content.

A disclosed preparation method for cassava starch modified by combining three kinds of modification processes is characterized by comprising: taking starch as a raw material, employing a wet-process crosslinking-oxidation-esterification chemical modification technological route, specifically, performing a crosslinking reaction and an oxidation reaction on an active starch slurry at the same time, then adding a pretreated composite esterification reagent to perform esterification reaction, and adjusting the pH value of the starch slurry to 5.0-6.5, so as to finish combined modification of cassava starch, filtering to obtain wet starch with the water content of 35% or less, then adding polyethylene glycol, mixing uniformly, and performing drying, cooling, crushing and sieving, so as to obtain the cassava starch modified by combining three kinds of modification processes. Only one time of post-processing process comprising washing, centrifugation, drying and the like is performed, the technological process is continuous and automatic, energy and reaction time are saved; and the product is low in gelatinization temperature, good in formability, improved in permeability, caking property, film forming ability and anti-ageing property, and is suitable for being used as a coating adhesive and a surface sizing agent in papermaking industry, a sizing agent in weaving industry, an industrial binder and the like.

The invention provides a gunning refractory for a heating furnace, comprising 45-85 wt% of high alumina bauxite, 5-20 wt% of fused magnesia, 2-10 wt% of aluminum-magnesium spinel, 1-5 wt% of kyanite, 5-35 wt% of binding agent, 0.05-0.5 wt% of sodium tripolyphosphate, 0.01-0.2 wt% of sodium polyacrylate and 0.2-3.0 wt% of aluminum powder. When the heating furnace is repaired by using the gunning refractory provided by the invention, hot-state online repairing can be realized with large speed and high efficiency by using spray-repairing equipment like a gunning machine and a spray gun. Shown bythe experiment, the gunning refractory obtains better adhesion and higher binding strength with the repaired working face after a 20-cm thick collapsed portion on the top of the heating furnace is repaired by using the gunning refractory provided by the invention; and no sparkling or spalling damage appears while the repaired gunning refractory is used for eight months.