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87results about How to "Improve mixing dispersibility" patented technology

Duprene rubber foamed sheet and preparation method thereof

The invention relates to a neoprene foaming board and a preparation method thereof. The neoprene foaming board is prepared by the following materials according to weight parts: 100 portions of neoprene, 15 portions to 200 portions of kaolin or calcium carbonate, 15 portions to 45 portions of carbon black, 10 portions to 20 portions of a vulcanizing agent, 0 portion to 2 portions of an accelerant, 5 portions to 15 portions of a vesicant, 0 portion to 5 portions of urea resin, 1 portion to 4 portions of olefin, 0 portion to 3 portions of dilauryl thiodipropionate, 0 portion to 2 portions of 2, 2'-methylene-bis(4-methyl-6- tert-butylphenol), 0 portion to 1 portion of nickel dibutyldithiocarbamate, 0 portion to 2 portions of stearic acid, 8 portions to 30 portions of black factice, 0 portion to 4 portions of vaseline, 10 portions to 20 portions of naphthenoid oil, 20 portions to 40 portions of perfume oil, and 1 portion to 4 portions of a dispersant. The preparation method thereof includes the steps of first-time mixing of a pressurizing milling machine, first-time mixing of a mixing mill, second-time mixing of the pressurizing milling machine, second-time mixing of the mixing mill, extrusion of an extruder, first-time foaming vulcanization, second-time foaming vulcanization, cooling and the like. The neoprene foaming board and the preparation method have the advantages of good flame resistance, high tensile strength, high extensibility, good performance of tear resistance, small compression set, good abrasion resistance and skidproof effect, good effect of shock absorption and the like.
Owner:常州美利晟高分子科技有限公司

Preparation method for high performance butadiene-styrene-isoprene powder polymer

The invention adopts a direct coagulation method for preparation of a high performance butadiene-styrene-isoprene powder polymer. The method comprises the following steps: dispersion of a carbon nanotube: a step of adding the carbon nanotube and water into a high-speed disperser and carrying out stirring to allow the carbon nanotube to be uniformly dispersed; preparation of graft latex: a step of successively adding water, styrene-butadiene latex, an emulsifier and a molecular weight regulator into a polymerization kettle, carrying out nitrogen displacement, adding isoprene, carrying out stirring and heating, adding an initiator and carrying out polymerization to prepare the graft latex; and coagulation for formation of powder: a step of successively adding the graft latex, water and the carbon nanotube into a coagulation kettle, carrying out stirring and heating, adding a release agent, a flocculating agent and a coagulating agent and carrying out curing, washing, dehydration and drying to obtain the powder polymer. The prepared powder polymer has the following performances: a powder particle size of 0.5 to 0.8 mm; isoprene content in PSBIR of 20 to 40%; Mooney viscosity ML(1+4)<100 DEG C> of 50 to 70; 300% stress at definite elongation of 18 to 25 MPa; tensile strength of no less than 27.0 MPa; elongation at break of no less than 560%; antistatic resistance of 106 to 109 omega; and electrization voltage of less than 100V.
Owner:PETROCHINA CO LTD

Material for heat insulating nano-material, mixing method of material, heat insulating nano-material and preparation method of heat insulating nano-material

ActiveCN109400011AImprove mixing dispersibilityImprove the effect of mechanical fusionFiberMixed materials
The invention relates to a material for a heat insulating nano-material, a mixing method of the material, the heat insulating nano-material and a preparation method of the heat insulating nano-material. The mixing method includes the steps: uniformly dispersing ceramic fibers by water, drying the uniformly dispersed ceramic fibers to obtain pre-dispersed ceramic fibers; mechanically fusing nano-powder, the pre-dispersed ceramic fibers and auxiliary dispersing agents selected from groups formed by sodium dodecyl benzene sulfonate, methylcellulose, carboxymethylcellulose and polyoxyethylene to obtain nano-heat insulating material. The preparation method of the heat insulating nano-material includes the steps: uniformly mixing 85-100% of materials and 0-15% of additives to obtain a mixed material; performing mold pressing on the mixed material to prepare the nano-heat insulating material. The material is uniformly mixed by the mixing method without destroying fiber shapes and a microstructure of the nano-powder. According to the method, the heat insulating nano-material with low density, low heat conductivity coefficient and excellent mechanical property can be prepared.
Owner:AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH

Self-suction airlift fermenting tank

A self-suction airlift fermenting tank comprises a tank body, an intake device, an exhaust device, a flow guide device, and an intake pipe and an exhaust pipe disposed on the tank body. The intake device is a cyclone mixer disposed at the bottom of the tank body and communicated with the intake pipe. The flow guide device is disposed in the tank above the cyclone mixer. The self-suction airlift fermenting tank is characterized in that the flow guide device is a flow guide barrel, the flow guide barrel is vertically disposed on the axis of the tank body, a stirring shaft with a stirrer is disposed on the axis of the tank body, the upper end of the stirring shaft is extended out of the tank body and connected with a motor, the lower end of the stirring shaft is connected with the cyclone mixer, and the stirrer is disposed on the lower portion of the inside of the flow guide barrel. The cyclone mixer rotates with rotating of the stirring shaft, liquid is imparted high kinetic energy by the aid of the rotating cyclone mixer, suction is generated when the liquid leaves, air sucked in may enter the fermenting tank under lower pressure, and air utilization can be increased. The self-suction airlift fermenting tank has the advantages of simple structure, good gas-liquid mixing effect and high fermenting efficiency and has significant comprehensive energy efficiency.
Owner:陆飞浩

Membrane-dispersion liquid-phase cycle hydrorefining method

The invention discloses a membrane-dispersion liquid-phase cycle hydrorefining method. The membrane-dispersion liquid-phase cycle hydrorefining method comprises the following steps: performing hydrogen saturation on a distillate raw material, hydrogen and a circulating liquid hydrogenation product in a pipeline to form a liquid-phase mixture of distillate raw material/hydrogenation product/hydrogen, enabling the liquid-phase mixture with saturated dissolved hydrogen to enter a porous membrane tube for liquid-phase feed dispersion, which is arranged at an inlet of a fixed-bed hydrogenation reactor, and entering a reactor bed after membrane dispersion, wherein the reactor is filled with a hydrogenation catalyst; dispersing the liquid-phase mixture from the membrane tube, entering a catalystbed zone, performing a hydrogenation reaction, circulating a part of a reaction product from the bottom of the hydrogenation reactor, mixing with a fresh raw material, discharging a part from a reaction system and entering a subsequent product storage unit. By the membrane-dispersion liquid-phase cycle hydrorefining method, the activity of the whole catalyst can be effectively played while hydrogen mixing is achieved, the operating life of the hydrogenation catalyst is prolonged, the hydrogenation reaction efficiency is increased, and the sulfur nitrogen and aromatic hydrocarbon contents of aproduct can be further reduced.
Owner:CNOOC TIANJIN CHEM RES & DESIGN INST +3

Fireproof aluminium-plastic panel containing nanometer flame retardant and core material special for fireproof aluminium-plastic panel containing nanometer flame retardant

The invention relates to the technical field of aluminium-plastic panels, in particular to a fireproof aluminium-plastic panel containing a nanometer flame retardant and a core material special for the fireproof aluminium-plastic panel containing the nanometer flame retardant. The core material comprises the following raw materials in parts by weight: 45-55 parts of polyethylene, 25-30 parts of polycarbonate, 15-18 parts of modified enhanced nylon, 2-3 parts of the nanometer flame retardant, 1.5-2.5 parts of modified nanometer cerium oxide, 2-6 parts of a synergist, 3-8 parts of a compatilizerand 1-2 parts of a lubricant. The core material has excellent flame-retardant and fireproof performance, the mobility is high, a core layer can be easily produced through extrusion molding and injection molding, and the core layer produced by using the core material is high in strength and excellent in hardness, resists bending, is not liable to deform, and is excellent in weather resistance; andby adopting the nanometer flame retardant, through combined action of the nanometer flame retardant and the synergist, the core material can have the excellent flame retardant and fireproof performance, and not only can the synergist have an flame-retardant effect, but also a powder state of the synergist can promote the dispersity of materials, so that the rheological property of the core material in the subsequent technologies is improved.
Owner:东莞华尔泰装饰材料有限公司

Compound deodorizing, antibacterial and antiviral multifunctional fiber and preparation method thereof

The invention belongs to the technical field of functional fiber materials, and discloses compound deodorizing, antibacterial and antiviral multifunctional fiber and a preparation method thereof. PVA and an organosilicon quaternary ammonium salt antibacterial agent are added into a traditional Chinese medicine antiviral extracting solution to obtain a mixed solution, then a catalyst and a sodium silicate or silicate ester compound are added for a condensation reaction, PVA-SiO2 interpenetrating network particles coating a traditional Chinese medicine antiviral component and the organosilicon quaternary ammonium salt antibacterial agent are obtained, and the obtained functional particles and a fiber matrix are subjected to mixed spinning, so that the product is obtained. The PVA is used as a coating agent of the traditional Chinese medicine antiviral component and the organosilicon quaternary ammonium salt antibacterial agent, so that mixing and dispersion of the traditional Chinese medicine antiviral component and the organosilicon quaternary ammonium salt antibacterial agent in the fiber matrix are promoted; and further an interpenetrating network enhanced structure is formed with SiO2. The long-lasting deodorizing, antibacterial and antiviral effects can be achieved and the fiber strength can be enhanced by introducing the multifunctional fiber into the fiber matrix.
Owner:芯安健康科技广东有限公司

Composite fertilizer used for tea trees and capable of improving soil structure

The invention discloses a composite fertilizer used for tea trees and capable of improving soil structure. The composite fertilizer comprises the following raw materials by weight: 20 to 35 parts of urea, 15 to 35 parts of monoammonium phosphate, 4 to 16 parts of double superphosphate, 10 to 20 parts of potassium dihydrogen phosphate, 2 to 8 parts of magnesium-potassium sulfate fertilizer, 2.5 to 4.5 parts of trace elements, 30 to 40 parts of a slow release system, 2 to 6 parts of gelatin, 20 to 30 parts of fermented cottonseed meal, 5 to 15 parts of peat soil, 4 to 18 parts of peanut shell powder, 5 to 15 parts of corn cob powder, 30 to 60 parts of peanut meal and 4 to 12 parts of buckwheat flour. The composite fertilizer provided by the invention realizes reasonable compounding of all the nutrient elements needed in the growth of the tea tree, and has excellent water retention, fertilizer preservation and slow release performance; after the composite fertilizer is applied to soil, available nutrients in the composite fertilizer are slowly released to prolong the duration of fertilizer efficiency; harm to soil caused by inorganic fertilizer components in the composite fertilizer is reduced, and soil hardening is avoided; and the composite fertilizer can improve the physical and chemical properties and fertility of soil.
Owner:天长市翔净蔬菜种植发展有限公司

Jet-driven medicament disperse system and pulp mixing modification equipment applying same

ActiveCN105289390AHomogeneous Mix Feed RequirementsImprove impact performanceMixer accessoriesImpellerHybrid system
The invention relates to the field of coal slurry pre-treatment, and in particular relates to a jet-driven medicament disperse system and pulp mixing modification equipment applying the same. The jet-driven medicament disperse system comprises a jet spray nozzle and a liquid flow pipe, wherein the jet spray nozzle comprises an outer pipe body, the outer pipe body is internally and coaxially provided with a rotating shaft in a sleeving manner, and a driving impeller and a driven impeller are coaxially arranged on the rotating shaft; the liquid discharging direction of a pass pipeline, connected with the outer pipe body, of the liquid flow pipe is located in the tangential direction of the driving impeller, and a pipe chamber of the pass pipeline is provided with a pipeline mixer for preliminarily mixing ore pulp and a medicament. The system can effectively realize the uniform mixing feeding requirements of the medicament and the ore pulp in a controllable manner. The pulp mixing modification equipment comprises a mixing box and a graded mixing system, the top of the mixing box is provided with a medicament atomization dispersing system and the bottom is provided with the jet spray nozzle, a liquid outlet of the mixing box is arranged in a way different from the mounting position of the outer pipe body. The equipment is especially suitable for the pulp mixing modification requirement of fine-particle coal difficult to float, the working efficiency of the equipment is high and the pre-treatment process is quick and convenient.
Owner:ANHUI UNIV OF SCI & TECH

Duprene rubber foamed sheet and preparation method thereof

The invention relates to a neoprene foaming board and a preparation method thereof. The neoprene foaming board is prepared by the following materials according to weight parts: 100 portions of neoprene, 15 portions to 200 portions of kaolin or calcium carbonate, 15 portions to 45 portions of carbon black, 10 portions to 20 portions of a vulcanizing agent, 0 portion to 2 portions of an accelerant,5 portions to 15 portions of a vesicant, 0 portion to 5 portions of urea resin, 1 portion to 4 portions of olefin, 0 portion to 3 portions of dilauryl thiodipropionate, 0 portion to 2 portions of 2, 2'-methylene-bis(4-methyl-6- tert-butylphenol), 0 portion to 1 portion of nickel dibutyldithiocarbamate, 0 portion to 2 portions of stearic acid, 8 portions to 30 portions of black factice, 0 portion to 4 portions of vaseline, 10 portions to 20 portions of naphthenoid oil, 20 portions to 40 portions of perfume oil, and 1 portion to 4 portions of a dispersant. The preparation method thereof includes the steps of first-time mixing of a pressurizing milling machine, first-time mixing of a mixing mill, second-time mixing of the pressurizing milling machine, second-time mixing of the mixing mill, extrusion of an extruder, first-time foaming vulcanization, second-time foaming vulcanization, cooling and the like. The neoprene foaming board and the preparation method have the advantages of good flame resistance, high tensile strength, high extensibility, good performance of tear resistance, small compression set, good abrasion resistance and skidproof effect, good effect of shock absorption and the like.
Owner:常州美利晟高分子科技有限公司

Method for detecting mixing dispersity of original bituminous pavement mixture in on-site heat recovery process

ActiveCN101900719AEnsure successful implementationGood mixing and dispersibilityMaterial testing goodsDispersityRoad surface
The invention provides a method for detecting mixing dispersity of original bituminous pavement mixture in on-site heat recovery process. The invention is characterized in that the method includes the following steps: step one, pavement material is taken; step two, mixing test is carried out on original bituminous pavement mixture; step three, preheated mineral powder is added and mixing is carried out again; step four, cooling is carried out, and then screening is carried out, so as to obtain unit screening rate Pio; step five, newly mixed bituminous mixture is produced according to bitumen-aggregate ratio and gradation of the original bituminous pavement mixture; step six, preheated mineral powder is added and mixing is carried out again; step seven, cooling is carried out, and then screening is carried out, so as to obtain unit screening rate Pin; step eight, the difference between the unit screening rates of the original bituminous pavement mixture and the newly mixed bituminous pavement mixture at each standard screening level is calculated. The test method provided by the invention can effectively solve the problem that mixing dispersion effect of pavement mixture in the existing bituminous pavement on-site heat recovery process can not be accurately evaluated, thus providing beneficial basis for design and optimization of on-site heat recovery construction technological condition.
Owner:SOUTHEAST UNIV
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