35results about How to "Evenly dispersed" patented technology

The invention provides high-performance modified asphalt, consisting of the following raw materials in parts by weight: 70-100 parts of asphalt, 3-7 parts of a styrene-butadiene-styrene copolymer (SBS), 0.01-2 parts of ethylene bis-stearamide (EBS), 0.1-1 part of a vulcanizing agent, 0.1-1.5 parts of an antioxidant, 2-4 parts of methyl ethyl ketone, 2-3 parts of an anti-aging agent, 1-2.5 parts of methyl phenol type phenolic resin, 0.5-1 part of epoxidized vegetable oil, 2-4 parts of propyl acetic acid, 1-3 parts of nickel acetylacetonate, 1-3 parts of dibutyl ester, and 1-3 parts of pentaerythritol tetrastearate. The high-performance modified asphalt provided by the invention has excellent high-temperature stability, salt fog resistance and ageing resistance, and the high-temperature viscosity of the modified asphalt can be reduced; and the modified asphalt meets a high-viscosity modification index requirement, and can be applied to special occasions including OGFC (Open Graded Friction Course) drainage asphalt pavements, heavy-loaded traffic road asphalt pavements and the like.

The invention relates to an anti-seepage grouting material for a prefabricated building and a preparation method thereof. The anti-seepage grouting material for the prefabricated building is prepared from the following raw materials: fine sand, cement, silica fume, a modified attapulgite/sodium methyl silicate composite anti-seepage material, concrete waste, a polycarboxylate superplasticizer, a thixotropic lubricant and a defoaming agent. Attapulgite is adopted as a carrier, the attapulgite has a layer chain structure, a large specific surface area and excellent flexibility and can effectively enhance the mechanical property of a cement matrix, and the attapulgite supports two anti-seepage components, namely sodium methyl silicate and a silane coupling agent, and can deeply penetrate into the interior of the matrix material, thus playing a role in structural waterproofing and achieving good stability,high strength and good seepage resistance. The preparation method is simple, large-scale production is easy, and the cost is low.

The invention relates to a formaldehyde-free super-thin glass fiber floor felt, which is characterized by being prepared by adhering super-thin alkaline-free glass fiber chopped yarns and an acrylic acid adhesive by a weight ratio of (2:1) to (5:1) and drying, wherein the super-thin alkaline-free glass fiber chopped yarns are 6-18 mm in length and 8-10 micrometers in diameter; the acrylic acid adhesive comprises the following ingredients in percentage by weight: 65-80 percent of an environment-friendly emulsion type acrylic ester adhesive, 15-30 percent of modified polyvinyl acetate type white glues, 0.03-0.09 percent of a silane coupling agent KH-550 and 3-6 percent of hydroxyethyl cellulose; the solid content of the environment-friendly emulsion type acrylic ester adhesive is 43-55 percent by weight; the solid content of the modified polyvinyl acetate type white glues is 50-55 percent by weight. The invention also relates to a preparation method of the formaldehyde-free super-thin glass fiber floor felt. The formaldehyde-free super-thin glass fiber floor felt and the preparation method thereof disclosed by the invention have the advantages of no formaldehyde and low air permeability.

The invention belongs to the technical field of lubricating agents, and particularly relates to a water-based erucyl amide emulsion, which is prepared from the following components in parts by weight:60 to 70 parts of deionized water, 30 to 40 parts of erucyl amide, 3 to 7 parts of dispersing agent, 1 to 3 parts of emulgator, 0.5 to 1.5 parts of solubilizer, 1 to 3 parts of water-based foam inhibitor, and 0.3 to 0.5 part of anti-settling agent. The particle size of the erucyl amide in the emulsion ranges from 0.1 to 1 mu m, and the emulsion is uniform in dispersion, even and stable, has excellent smoothness and lubrication performance when being used as a smooth agent for water-based ink and a lubrication agent for a water-based paint, and can be used for producing high-end leather. According to the preparation method of the water-based erucyl amide emulsion provided by the invention, a process is adjusted, the produced water-based erucyl amide emulsion is small in viscosity during aproduction process, and the water-based erucyl amide emulsion with the ground erucyl amide reaching a micrometer scale and even a nanoscale can be obtained favorably.

The invention discloses a method for dyeing yellow tipping base paper, which comprises the following steps of: 1, preparing dyes, namely putting ferrite yellow, chrysophenine, brilliant scarlet, blue and water into a sand mill according to a ratio, grinding, and mixing the ground materials fully and uniformly; 2, pulping, namely putting a pulp board and the water into a hydrapulper according to a ratio and pulverizing the mixture to obtain a sizing agent; 3, mixed dyeing, namely putting the dyes prepared by the step 1 into the sizing agent obtained by the step 2, and mixing fully; 4, beating, namely putting the dyed sizing agent in the step 3 into a beater for beating; and 5, preparing pulp, namely putting the sizing agent obtained by the step 4 into a pulp preparing pond, putting light calcium carbonate and starch into the pulp preparing pond according to the weight part of the process requirement, and mixing fully for dyeing. The method solves the problems of nonuniform dyeing, fading, color spots and the like of the conventional yellow tipping base paper effectively, has a practical process, is simple in operation, good in controllability and low in cost, and avoids using extra special dyeing equipment.

The invention discloses an antibacterial plastic material which is mainly prepared from the following raw materials in parts by weight: 25-38 parts of high density polyethylene, 10-15 parts of hydroxyapatite, 5-12 parts of chitosan, 4-7 parts of ammonium dihydrogen phosphate, 20-32 parts of ABS (acrylonitrile butadiene styrene) resin, 1-3 parts of antioxidants, 2-4 parts of glycerin and 3-5 parts of alums. The invention discloses a preparation method of the antibacterial plastic material. The antibacterial plastic material prepared by the invention has favorable antimicrobial properties by adding the chitosan, the glycerin and the alums in a certain mixing ratio, meets a long-acting antibacterial requirement, and moreover, is nontoxic and environment-friendly. The preparation method of the antibacterial plastic material, which is provided by the invention, is simple in operation steps; process conditions are easy to control; particles of various components are small in particle sizes, and are uniformly dispersed in the antibacterial plastic material; the antibacterial plastic material is strong in antibacterial properties; the antibacterial plastic material provided by the invention is wide in application to the preparation of antibacterial appliances, and is easy to popularize and apply.

The invention discloses a preparation method of high-dispersion silicon dioxide, and belongs to the technical field of silicon dioxide preparation methods. According to the method, specified water glass and concentrated sulfuric acid are used as raw materials, no water glass is added into a base solution, the water glass and dilute sulfuric acid are directly chemically synthesized in a complete aqueous solution under a certain condition, the particle size distribution of silicon dioxide particles is continuously adjusted by controlling the gradient increase of the pH value of the system, an electrolyte (a sodium sulfate solution) is introduced in a sulfuric acid adding acidification process, and can effectively prevent the generated silicon dioxide particles from being closely agglomerated, and finally the filter-pressed silicon dioxide is subjected to azeotropic drying on by taking n-butyl alcohol as a dispersing agent to prevent the mutual contact and agglomeration among the silicondioxide particles again so as to adjust the particle size distribution of silicon dioxide. According to the preparation method of the high-dispersion silicon dioxide, the particle size distribution ofthe original silicon dioxide particles obtained by precipitation is uniform, the finally formed silicon dioxide particles are easily dispersed into the rubber, the tight agglomeration of the silicondioxide particles can be effectively prevented by an electrolyte, and the silicon dioxide particles are uniformly dispersed.