44results about How to "High speed dispersion" patented technology

The invention discloses an aqueous cold pigment double-coat multifunctional thermal-insulation external wall paint and a preparation method thereof. The invention belongs to the field of paint, and relates to an external wall paint based on an aqueous organic silicone-acrylate emulsion, particularly a thermal-insulation external wall paint. The invention provides an aqueous cold pigment double-coat multifunctional thermal-insulation external wall paint. The paint is composed of a top-coat component and an intermidiate-coat component, wherein the top-coat component comprises aqueous organic silicone-acrylate emulsion, cold pigment, glass hollow microspheres, ceramic hollow microspheres, rutile type titanium dioxide, nano infrared emission ceramic powder, superfine French chalk, infrared emission ceramic powder, accessory ingredients and water. In the painting process, the top-coat and intermediate coat are used separately and respectively form a film. The paint can perform the functions of self cleaning and thermal insulation, thereby achieving the goals of energy saving, consumption reduction and environment protection.

The invention discloses a water-resistant high-temperature-resistant single-component waterborne polyurethane adhesive and a preparation method thereof and relates to the technical field of polyurethane adhesives. The adhesive comprises, by weight, 30-40 parts of polytetrahydrofuran glycol, 15-22 parts of polycarbonate diol, 3-7 parts of poly-2,6-polyethylene naphthalate polyester glycol, 17-25 parts of diisocyanate, 2-5 parts of chain extender, 0.5-2 parts of silane coupling agent modified silicon dioxide nanoparticles, 0.1-0.6 part of dibutyltin dilaurate, 4-8 parts of acetone, 1-3 parts oftriethylamine, 0.05-0.1 part of sodium hydroxide and an appropriate amount of water. Polytetrahydrofuran and polycarbonate diol are adopted as oligomer polyhydric alcohols in raw materials for preparing polyurethane, and added poly-2,6-polyethylene naphthalate polyester glycol is introduced to a soft-segment part of polyurethane; by adding silane coupling agent modified silicon dioxide nanoparticles, the mechanical properties and heat resistance of the adhesive can be improved; the prepared adhesive is high in adhesive force and excellent in water resistance and high temperature resistance, and the application range of the adhesive is enlarged.

The invention discloses a high-thermal conductivity flame-retardant epoxy resin pouring sealant. The heat conductivity coefficient of the pouring sealant reaches 3.0W/mK-5.0W/mK, and the flame-retardant grade is UL94 V-0. The pouring sealant contains a component A and a component B, wherein the component A is mainly prepared from epoxy resin, an inorganic fillings, a dispersing agent, a defoamingagent and an active diluent; the component B is mainly prepared from a curing agent and an accelerant; the inorganic fillings are selected from at least two of boron nitride nanotubes, boron nitride nanosheets, aluminum nitride, aluminum oxide and silica powder; and the mass ratio of the component A to the component B is (10-15) to 1. The invention further discloses a preparation method of the epoxy resin pouring sealant. The heat conductivity coefficient of the pouring sealant reaches 3.0W/mK-5.0W/mK, and the flame-retardant grade is UL94 V-0.

The invention discloses a one-component high-elasticity silylated polyurethane waterproof coating and a production method of the one-component high-elasticity silylated polyurethane waterproof coating. The one-component high-elasticity silylated polyurethane waterproof coating is prepared from 50 to 70 parts of polyether polyol 330N, 180 to 200 polyether polyol DL-2000, 60 to 70 parts of diphenylmethane diisocyanate, 10 to 20 parts of toughening agent heavy-vacuum gas oil, 10 to 15 parts of a silane coupling agent, 0.3 to 0.5 part of a catalyst, 3 to 5 parts of a latent curing agent, 5 to 7 parts of epoxy resin, 20 to 30 parts of a non-reactive diluent, 140 to 180 parts of a powder filler, 3 to 5 parts of white carbon black, 3 to 5 parts of carbon black, and 0.3 part of an antioxidant. The one-component high-elasticity silylated polyurethane waterproof coating disclosed by the invention has the advantages of overcoming weaknesses of foaming, being more friendly to the environment, further lowering the production cost, facilitating popularization and application, prolonging the shelf life, shortening the curing time, improving the product quality, having better performances, especially bond performances, not requiring on-site measurement and blending for being a single component, thereby being more convenient and fast in construction.

The invention relates to a smearing epoxy anti-corrosion coating for underwater concrete and steel structure and the preparation thereof, comprising the blending of component A and component B. The invention is characterized in that the Component A consists of 20-40wt percent of solvent-free epoxide resin, 0-6wt percent of glycidyl ether epoxy active diluent, 13-50wt percent of barite powder, 0-30wt percent of titanium pigment, 0.5-2wt percent of modified polyamide thixotropic agent, 0.2-0.5wt percent of dispersant, 0.2-0.5wt percent of defoamer and 1-4wt percent of resin acceptor; the preparation viscosity is 40000-120000cP and the proportion is 1.5-2.5. The component B consists of 10-30wt percent of C5-C20 hydrocarbon chain Mannich di-benzene-ring epoxy curing agent, 2-10 percent of reacton typed promoter, 2, 4, 6-tri-dialkyl amine alkylamine methyl phenol. The coating of the invention has the advantages of strong adhesive attraction at the initial stage, excellent initial adhesive attraction under dynamic water, quick solidification in underwater construction and no drain and spalling, and can resist the impact of water with the speed of 1m per second, realize initial set in an hour to reach 30-50 percent of the design strength and reach more than 1MPa of bond strength in 24 hours, thereby overcoming the disadvantage of difficult coating under dynamic water of the existing epoxy coating.

The invention discloses a method for producing controllable-particle-size calcium carbonate by continuous carbonization. A water ring air compressor, a primary carbonization tower, a gas distributor, a primary carbonization stirring device, a gas storage tank, a secondary carbonization tower, a secondary carbonization stirring device, a circulating emulsification pump, a calcium hydroxide storage tank, a venturi ejector and the like are applied. The method includes specific operation steps of primary carbonization, circulating emulsification, CO2 gas suction, calcium hydroxide slurry feeding and secondary circulating carbonization. The particle size of calcium carbonate prepared according to the method can be controlled in a range of 80-200nm, and a product is uniform in crystalline form, regularly cubic in morphology, small in agglomerated particle quantity, high in dispersity, narrow in particle size distribution and low in oil absorption value.

The invention provides an epoxy polyurethane zinc phosphorus anti-corrosive paint, the components of the anti-corrosive paint are as follows: a first component which comprises aliphatics solidifying agent and environmental protective solvent, a second component which comprises macromolecular epoxy resin, anti-corrosive pigment I, anti-corrosive painting II, the environmental protective solvent, dispersing agent, anti-foaming agent, leveling agent and filler. When the the first component and the second component are used, the mixed ratio of the weight of the first component and the second component is 1:5. The invention also discloses a preparation method of the epoxy polyurethane zinc phosphorus anti-corrosive paint. The epoxy polyurethane zinc phosphorus anti-corrosive paint has the advantages that the epoxy polyurethane zinc phosphorus anti-corrosive paint of the invention adopts macromolecular epoxy resin and adipose polyisocyanate reaction, the adhesive force of the paint film is good, the drying speed is quick, and the thermal-resistant temperature of the paint reaches over 150 DEG C, because the tetroxy chromate and xinc phosphate compound anti-corrosive high-efficient pigment are adopted, the anti-corrosive paint has the long-time anti-corrosive performance; the surface treatment of the backing material is not required strictly, the construction is convenient, and the environmental protective solvent can not cause pollution to the environment; the paint film has good acid resistance and alkali resistance and solvent resistance; the preparation method is simple, and the large-scale production is easy.

The invention discloses volatile peelable blue gel and a preparation method thereof. The volatile peelable blue gel is prepared from the following raw materials in parts by weight: 10 to 20 parts of thermoplastic elastomer resin, 1 to 10 parts of hydrocarbon resin, 1 to 10 parts of petroleum resin, 0.1 to 1 part of a silane coupling agent, 20 to 50 parts of dearomatic white spirit, 1 to 10 parts of an esters solvent, 10 to 30 parts of an alkanes solvent, 0.1 to 1 part of a defoaming agent, 0.1 to 1 part of a flatting agent, 0.1 to 1 part of a wetting dispersant, and 0.1 to 1 part of phthalo blue paint. The volatile peelable blue gel and the preparation method thereof provided by the invention have high insulation resistance so as to provide excellent insulation effects, have elongation exceeding 400% and high toughness so as to provide a peeling effect, and have strong adhesive force and adherence so as to provide functions of effectively preventing humidity, salt mist and moulds. In addition, the volatile peelable blue gel not only effectively protects the surface cleanness of a product, but also can protect the product from dust, salt mist and humidity.

The invention provides a tow printing and dyeing device based on textile processing, and relates to the field of textile. The tow printing and dyeing device comprises a printing and dyeing box, supporting legs, a feeding mechanism, an offset centrifugal printing and dyeing mechanism and a storage mechanism, wherein the feeding mechanism is used for feeding tows in an umbrella scattered manner, theoffset centrifugal printing and dyeing mechanism is used for dividing the tows into different small tows and integrally spirally and rotationally printing and dyeing the tows, the storage mechanism is used for storing long printed and dyed tows, and the supporting legs are fixedly mounted at the bottom of the printing and dyeing box. According to the tow printing and dyeing device based on textile processing, the tows are scattered through a special structure by the aid of the flexibility of the tows, the tows are far away from a rotating shaft by different-level distance in the rotating process, winding can be avoided, printing and dyeing efficiency can be improved, and the device effectively solves the problems that tows are difficultly scattered by general tow printing and dyeing operation, parts of the tows cannot be sufficiently soaked in printing and dyeing liquor as the tows are stacked, winding of the tows is easily caused by swing operation, and working efficiency is affected.

The invention discloses a preparation method of a stable pseudosciaena crocea egg isolated protein-beta-carotene emulsion. The preparation method comprises the following steps of S1, preparing preotein freeze-dried powder: performing salt-dissolving protein extraction on pseudosciaena crocea eggs with a sodium chloride solution, performing centrifuging so as to obtain a supernatant, and performingfreeze-drying for standby application; S2, preparing an oil phase: performing ultrasonic heating on beta-carotene so that the beta-carotene dissolves in corn oil, and performing compounding so as toobtain the oil phase for standby application; S3, preparing an aqueous phase: preparing a protein solution of certain concentration with a buffer solution, and compounding the aqueous phase for standby application; S4, performing mixing: mixing the oil phase with the aqueous phase in a certain proportion, and performing high-speed dispersion; and S5, performing homogenizing: and performing high-pressure homogenizing so as to obtain the stable pseudosciaena crocea egg isolated protein-beta-carotene emulsion. According to the preparation method disclosed by the invention, pseudosciaena crocea egg isolated protein is used as an emulsifying agent for embedding beta-carotene, and the obtained pseudosciaena crocea egg isolated protein-beta-carotene product namely the emulsion is high in nutrientvalue and high in stability.

The invention belongs to the technical field of lubricants, and in particular relates to a preparation method of a reinforcing and toughening lubricant specially used for ABS. The method comprises thefollowing steps: firstly nano powder is added into ethanol, a treating agent is added to modify the surface of the powder, the obtained treated nano powder is added into ethylenediamine to obtain aminated nano powder, the aminated nano powder and stearic acid are subjected to a reaction at high temperature to obtain a waxy substance, glass cellulose modified by glyceryl monostearate can be addedinto the waxy substance, extrusion granulation is performed, and therefore the reinforcing and toughening lubricant specially used for the ABS can be obtained. According to the method provided by theinvention, the prepared lubricant is added into the ABS resin, and the lubricant has good compatibility with the ABS resin, and improves the impact strength and bending strength of the ABS resin whileimproving the fluidity of the ABS resin.

The invention provides a surface-tolerant coating and an application thereof. The coating comprises an A component and a B component at a weight ratio of (100-125):100. The A component comprises, by weight, 35-55 parts of epoxy resin and 3-10 parts of a first solvent. The B component comprises, by weight, 18-40 parts of an amine curing agent and 5-15 parts of a liquid petroleum resin, which is a liquid aromatic hydrocarbon resin having the viscosity being 700-2600 mpa*s and the aromatic ring of which is connected to non-active hydroxyl. The surface-tolerant coating is excellent in penetrationperformance, the toughness of a coating film is high, and the formed coating layer is excellent in adhesive force and mechanical property.

The invention discloses a method for preparing silver paste used for a back electrode of a photovoltaic cell. The method comprises the following steps of mixing a pasty solvent, a thickening agent and a diluting solvent, adding superfine silver powder and glass powder in the mixture, dispersing at a high speed in a sand mill, heating synchronously to evaporate the diluting solvent, thereby betterpromoting dispersion of the superfine silver at a molecular level, and finally grinding by using a three-roll grinder so as to prepare the silver paste for the back electrode of the photovoltaic cell. The silver paste used for the back electrode of the photovoltaic cell prepared by the method provided by the invention has good dispersivity, the fineness of the prepared paste material is less than8 microns, so that the method is suitable for being used in the preparation of photovoltaic cells in large scale.

The present invention discloses one kind of green anticorrosive inner wall paint, which consists of n-butanol 28-30 weight portions, chlorobutadiene rubber 2.5-4.2 weight portions, butyl acetate 7-8 weight portions, petroleum resin 4-6 weight portions, DIBP 8-10 weight portions, barium sulfate 20-30 weight portions and pigment in proper amount. The preparation process of the paint includes adding the first mentioned five components into one reactor with high speed shearing and emulsifying machine to modify the base material in the rotation speed of 4000-4500 rpm for 2 hr, adding barium sulfate and pigment and high speed shearing at 5000-5800 rpm to disperse and emulsify for more 2 hr to reach material fineness below 60 micron, filtering and packing. The paint has the features of no toxicity, no bad smell, high anticorrosive and waterproof property, high adhesion, etc.