212results about How to "Improve dispersion compatibility" patented technology

The invention discloses a method of using super-cladodification polymer branch-connection inorganic nanometer powder for reinforcing the surface rubber performance of an engineering tyre, which is as follows: nanometer powder after super-cladodification surface process is added into the rubber mixed-smelting process; and under the condition that the original rubber production formula and technology are not changed, 1 to 20 parts of super-cladodification nanometer powder are added into 100 weight parts of rubber substrate. The terminal-group functional group of high density of the super-cladodification polymer and the defective cavity structure are helpful for the dispersion of nanometer granules, and have great potency for balancing the integrative performance of the nanometer composite material, thus the granules have excellent dispersing compatibility in the rubber substrate, the rubber displays excellent reinforcing synergy effect and interface compatible effect, and the tensile strength, the breakage elongation, the tearing strength and the wear resistance are greatly improved.

The invention discloses an oil-resistant low-smoke halogen-free flame-retardant flexible polyurethane cable material and a preparation method thereof. In the preparation method, polyol and polyisocyanate are applied to react, wherein the R value is controlled to be 2.05-2.45, and a polyurethane prepolymer with a certain molecular weight and isocyanate groups at the two ends is synthesized. The synthesized isocyanate-terminated polyurethane prepolymer is mixed with white carbon black, a flame retardant and a mineral filler, and functional inorganic particles, with polyurethane as a soft shell and filler as a hard core, are formed through a physical dispersion effect and a mechanical force chemical reaction. The hardness of the polyurethane cable material can be reduced, and the flexibilityand oil resistance of the polyurethane cable material are improved. According to the cable material, a multi-layer network structure is formed through irradiation crosslinking and secondary vulcanization processes, so that the mechanical property of the material is improved, and the size shrinkage rate of the material in the forming process is reduced. The cable material can be used for manufacturing insulation and sheaths of low-smoke halogen-free flame-retardant cables, flexible special cables, new energy automobiles and Chinese standard motor train unit lighting wires.

The invention discloses a thermal insulation coating for building external walls. The thermal insulation coating is prepared from the following raw materials in parts by weight: 50-60 parts of modified polyurethane, 30-36 parts of modified composite aerogel, 8-12 parts of floating beads, 1.5-2 parts of rutile titanium dioxide, 1.5-2 parts of silicon carbide, 2-3 parts of mirabilite and 0.6-1 partof an auxiliary agent. The invention also discloses a preparation method of the coating. By adding the composite aerogel, the microporosity in the coating can be greatly improved, and the heat conduction path can be prolonged; besides, the rutile type titanium dioxide and the silicon carbide capable of reflecting radiant heat are introduced to block a propagation path of radiant heat conduction, and a phase change energy storage material mirabilite is introduced, so that the overall performance of the thermal insulation coating can be effectively improved in the coating; by starting from threepaths (conduction, radiation and convection) of heat transfer, the coating has excellent heat preservation and insulation performance; the film-forming substance can endow the paint with favorable antibacterial, mildew-proof and waterproof properties, and the obtained thermal insulation coating is suitable for building exterior walls.

The invention provides high-performance microscopic microfiber building heat insulation and heat preservation slurry with high tensile strength, compressive strength, heat insulation performance and tear resistance, and a using method thereof. The slurry comprises the following components of crylic synthetic resin, fluorinated silicone synthetic resin, a water retention thickening agent solution,a sepiolite fiber, a vermiculite fiber, a mullite fiber, powdered silicon dioxide, pearlife, a rock wool fiber, hollow ceramic microballs, a defoaming agent, a mildewproof bacteriacide and water; andfurthermore, white portland cement, a reinforcing agent and water which is 20 to 30 weight percent of a component A can be added.

The invention relates to extinction anti-ultraviolet high-performance PET (polyethylene terephthalate) master batches and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing PET slices and organic/inorganic composite hollow porous micro-spheres with core-shell structures, performing melt extrusion and granulation, and performing drying treatment toobtain the extinction anti-ultraviolet high-performance PET master batches. The organic/inorganic composite hollow porous micro-spheres with core-shell structures, mainly composed of crosslinked spheres, titanium dioxide nano-particles and organic ultraviolet absorbents, are uniformly dispersed in the finally prepared products; the crosslinked spheres have hollow interiors and porous surfaces andhave structures formed by mutually crosslinking copolymer molecular chains containing styrene and difunctional dimethacrylate type monomer structure units; the titanium dioxide nano-particles are coated with the crosslinked spheres and are connected with the crosslinked spheres through covalent bonds; and the organic ultraviolet absorbents are doped in crosslinked structures and/or attached to theinner walls of the crosslinked spheres. The product provided by the invention has good extinction and ultraviolet shielding effects and has a wide application range; and the method provided by the invention is simple and convenient in technology and reasonable in process.

The invention discloses a macroporous titanium dioxide nano-silver-supporting antibacterial auxiliary agent preparation method, which comprises: preparing a colloid crystal template from a polystyrene glue sphere; adding the mixed solution of tetraethyl titanate and absolute ethanol onto the colloid crystal template through a drip tube in a dropwise manner until completely wetting the colloid crystal template, and preparing three-dimensional ordered macroporous titanium dioxide through a sol-gel method; and pouring the macroporous titanium dioxide into a AgN03 solution, and carrying out gamma ray irradiation to load nano-silver particles onto the TiO2 so as to form the macroporous titanium dioxide nano-silver-supporting antibacterial auxiliary agent. According to the present invention, the elemental silver is supported on the TiO2, such that the cost of the silver-based inorganic antibacterial agent can be reduced, the high specific surface area of the carrier can be completely utilized, and the silver-loaded antibacterial agent can be added to clothing fibers, plastics, building materials and household appliances so as to expand the applications of the antibacterial material.

The invention discloses an esterified bisphenol A modified heat-resisting conductive thin film and a preparation method thereof. The esterified bisphenol A modified heat-resisting conductive thin filmis prepared from the following raw materials in parts by weight: 6 to 8 parts of light calcium carbonate, 65 to 70 parts of phenylamine, 0.8 to 1 part of bisphenol A, 2 to 3 parts of phosphorus trichloride, 1 to 2 parts of pentaerythritol, 0.8 to 1 part of triethylamine, 0.1 to 0.2 part of 8-hydroxyquinoline, 1.8 to 2 parts of initiator, 0.8 to 1 part of oleic diethanolamide, 1 to 2 parts of magnesium stearate, and 1 to 2 parts of methanoic acid. According to the esterified bisphenol A modified heat-resisting conductive thin film and the preparation method thereof provided by the invention, the phosphorus trichloride, the pentaerythritol and the bisphenol A are adopted as the raw materials for preparing the heat-resistant bisphenol A ester, polyaniline is introduced during a reaction process, the plasticity of the polyaniline is improved, the dispersibility of the raw materials is improved, and heat resistance and mechanical stability of a finished product are improved.

The invention discloses a graphene conducting material. The graphene conducting material is prepared from the following raw materials in parts by weight: 30 to 41 parts of graphene oxide, 20 to 30 parts of a conducting dispersion solution, 35 to 40 parts of aniline, 1 to 2 parts of ammonium persulfate, 0.4 to 1 part of melamine, 0.1 to 0.2 part of tert-butyl p-diphenol, 4 to 5 parts of diphenyl silanediol and 2 to 3 parts of calcium propionate. According to the graphene conducting material disclosed by the invention, various conducting substances, such as polyaniline, acetylene carbon black and graphene, are added; all the raw materials are blended and the graphene conducting material has very strong cooperatively enhanced conductivity; after the raw materials are treated by a method disclosed by the invention, the effects of stable finished products and efficient electric conduction are realized.

The invention discloses a graphene conductive thin film used for a touch screen. The graphene conductive thin film is prepared from the following raw materials in parts by weight: 110-120 parts of polytetrafluoroethylene, 10-13 parts of conductive graphite solution, 20-30 parts of acrylamide, 0.1-0.2 parts of ethylene thiourea, 0.7-1 parts of sodium persulfate, 1-2 parts of glyceryl tristearate, 0.7-1 parts of trimethylolpropane, 1-2 parts of calcium stearate, and 0.6-1 parts of 8-hydroxyquinoline. The thin film is high in conductivity, uniform stability and quality, without causing the phenomena of bubble forming and the like when the thin film is used on the touch screen.

The invention discloses a carbon nanotube fireproof material and a preparation method thereof. The carbon nanotube fireproof material is prepared from the following raw materials in parts by weight: 4to 5 parts of zinc hydroxystannate, 10 to 16 parts of lignin, 49 to 55 parts of carbon nanotube, 240 to 300 parts of caprolactam, 4 to 6 parts of ammonium persulfate, 3 to 5 parts of 2,2-dihydroxymethyl propionic acid, 1 to 2 parts of calcium stearate, 30 to 50 parts of sulfoxide chloride, and 0.1 to 0.14 part of triethylamine. The carbon nanotube fireproof material has the advantages that the carbon nanotube is modified by the lignin; when the carbon nanotube is combusted by fire, a stable carbon layer is formed in the carbon nanotube, so that the fireproof property of the finished materialis improved.

The invention discloses a silicon dioxide aerogel doped scolecite water treatment agent and a preparation method thereof. The water treatment agent is prepared from the following raw materials in parts by weight: 0.1-0.2 part of triethylamine, 5-7 parts of silicon dioxide aerogel, 100-140 parts of scolecite, 1-1.3 parts of ammonium persulfate, 5-7 parts of glycidyl methacrylate, 3-4 parts of an amino silane coupling agent and 40-50 parts of acrylamide. Due to a synergetic treatment method with the silicon dioxide aerogel, scolecite powder and polyacrylamide, the water treatment agent is good in treatment effect, high in finished product stability, not liable to disperse, good in self-sedimentation effect and convenient to recycle; in addition, both the silicon dioxide aerogel and the polyacrylamide can be uniformly distributed into micro pore structures of the scolecite powder, so that not only is a flocculation effect improved, but also the water treatment agent is easy to clean, highin repeated use rate and convenient in treatment.

The invention discloses an epoxy polyphenyl ether proton membrane. The proton membrane comprises the following raw materials in parts by weight: 7 to 9 parts of glycidol, 10 to 14 parts of methyl methacrylate, 70 to 80 parts of polyphenyl ether, 10 to 12 parts of 27 to 30% caprolactam water solution, 3 to 4 parts of doped carbon nanotube, 1 to 3 parts of triethylamine, 0.01 to 0.02 part of lithiummethoxide. The proton membrane takes the glycidol and methyl methacrylate as raw materials, obtains the carbon nanotube modified polyphenyl ether subjected to epoxidation treatment under the catalytic action of lithium methoxide, then the carbon nanotube modified polyphenyl ether is mixed with caprolactam, epoxy is subjected to ring opening under the catalytic action of triethylamine, the formation of the membrane is effectively promoted, meanwhile the dissolving property of polyphenyl ether in dimethyl formamide is improved, the dissolving rate is increased, the material utilization is improved, and the thickness and comprehensive quality of the proton membrane are improved.

The invention relates to hollow porous microspheres coated with titanium dioxide nanoparticles and a preparation method thereof. Styrene, a bifunctional dimethacrylate organic monomer and a photoinitiator are dissolved in a solvent to obtain an electronic injection solution; modified titanium dioxide with two-bonded surface is added in and dispersed well in the electronic injection solution; electrostatic spraying is performed under visible light to obtain the hollow porous microspheres coated with titanium dioxide nanoparticles, composed of the titanium dioxide nanoparticles and crosslinkingspheres coating the surface of the titanium dioxide nanoparticles; the crosslinking spheres are hollow, have porous surface and have crosslinking structure formed by interconnection of polymer molecular chains; the titanium dioxide nanoparticles and the crosslinking spheres are connected via covalent bonds. The hollow porous microspheres coated with titanium dioxide nanoparticles and the preparation method thereof have the advantages that the method is simple, the preparation process is reasonable, and the finally obtained hollow porous microspheres have good delustering effect, can effectively shield medium- and long-wave ultraviolet, have high melting temperature and pyrolytic temperature and have great popularization value.

The invention discloses a PLA/TPU supercritical foaming composite material and a preparation method thereof. The PLA/TPU supercritical foaming composite material is prepared from the following raw materials in parts by weight: 300 to 370 parts of polylactic acid, 130 to 155 parts of polyether polyurethane, 40 to 48 parts of organic silicon modified polyurethane, 20 to 27 parts of hydroxyl siliconeoil, 14 to 18 parts of maleic anhydride grafted polyethylene, 15 to 25 parts of glass fiber, 7 to 10 parts of a nucleating agent, 6 to 8 parts of a chain extender and 5 to 8 parts of a cross-linkingagent. The PLA/TPU supercritical foaming composite material disclosed by the invention is relatively high in tensile strength and good in mechanical property; the rebound rate is high, and the reboundperformance is excellent; the density is low, the foaming ratio is high, the pore size (diameter) is moderate, pores are uniform, and the foaming effect is good; the composite material has comprehensive mechanical properties such as ultra-light weight and good elasticity; in addition, the composite material is degradable and environment-friendly.

The invention discloses a non-stick coating layer, which is prepared from the following raw materials in parts by weight: 40 to 50 parts of epoxy acrylate, 25 to 32 parts of polyacrylic acid fluorine-containing ester, 25 to 32 parts of poly (vinylidene fluoride-trifluoroethylene), 10 to 15 parts of polytetrafluoroethylene powder, 2.5 to 4 parts of a suspension dispersing agent, 1 to 1.4 parts of aleveling agent and 1.5 to 2 parts of a curing agent. The non-stick coating layer has excellent lubricating performance and excellent non-stick performance, can completely meet the use requirements ofvarious processing molds (such as various plastic demolding, baking molds and papermaking and textile industries), contains no demolding agent (the production efficiency can be improved), and has excellent durability; in addition, no silicone oil is contained, and the product is prevented from being polluted; the adhesive force with a base material is large, the loading capacity is large, the impact resistance is good, the flexibility is good, the comprehensive performance is good, and the service life is long.

The invention relates to a PET film with high extinction and uvioresistant performances and its preparation method. The preparation method includes steps of melting and blending a PET slice and a core-shell structure structural organic/inorganic compound hollow porous particle to prepare a PET yogon slice; processing the PET yogon slice to prepare the PET film with high extinction and uvioresistant performances. Finally, the product is evenly dispersed with the core-shell structure structural organic/inorganic compound hollow porous particle mainly consisting of crosslinking ball, titanium dioxide nano-particle and organic ultraviolet absorbent; the inner part of the crosslinking ball is hollow, and the surface is porous and has a structure formed by mutually crosslinking copolymer molecular chains containing styrene and bifunctionality dimethyl methacrylate monomer structural units; the titanium dioxide nano-particle is coated in the crosslinking ball and connected with the crosslinking ball through a covalent bond ; an organic ultraviolet absorbent is doped in the crosslinking structure and/or attached on the inner wall of the crosslinking ball. The product has good extinction and uvioresistant shielding effects and wide application; the method is simple in technique and reasonable in flow.

The invention discloses a cyclodextrin modified polyacrylamide sewage treatment agent. The cyclodextrin modified polyacrylamide sewage treatment agent is prepared from the following raw materials in parts by weight: 60-70 parts of acrylamide, 1.5-2 parts of dibenzoyl peroxide, 4-6 parts of cyclodextrin, 0.6-1 part of calcium acetylacetonate, 90-100 parts of kieselguhr, 2-4 parts of trimethylolpropane, 1-2 parts of aluminum potassium sulfate, 1-2 parts of sodium diacetate, 9-10 parts of polyvinylpyrrolidone and 2-3 parts of stearic acid. Cyclodextrin modified treatment is adopted to further improve the adsorption stability of a finished product treatment agent; and the material disclosed by the invention has good safety and environmental friendliness and superior comprehensive properties.

The invention discloses a crease-resistant non-ironing type suit fabric which is composed of a surface layer and an inner layer. The surface layer and the inner layer are connected through bonding; the surface layer is a mulberry silk blended fabric obtained after crease-resistant treatment, the inner layer is made of a viscose/XLA fiber fabric, and an adhesive is a reinforced polyurethane adhesive. The fabric has good crease-resistant and antibacterial effects and the like and is high in comprehensive quality.

The invention discloses a bacterium-inhibiting and formaldehyde-removing interior wall coating. The bacterium-inhibiting and formaldehyde-removing interior wall coating is prepared from the followingraw materials in parts by weight: 110 to 130 parts of silicone acrylic emulsion, 20 to 24 parts of iso-octyl acrylate, 0.6 to 0.7 part of an initiator, 1 to 2 parts of sorbitan monooleate, 0.8 to 1 part of N-hydroxymethyl acrylamide, 10 to 16 parts of scolecite, 2 to 4 parts of calcium propionate, 1 to 2 parts of methylisothiazolinone, 3 to 4 parts of abietinol, 1 to 2 parts of barium stearate, 0.1 to 0.3 part of zinc cyanurate and 1 to 2 parts of ammonium ethoxylated alkyl sulfate. According to the bacterium-inhibiting and formaldehyde-removing interior wall coating, the methylisothiazolinoneis also added, so that the bacterium-inhibiting and anticorrosion performance of the finished-product coating is effectively improved; a coating layer of a coating film contains micro-pores so that the bacterium-inhibiting and formaldehyde-removing interior wall coating can have a certain noise reduction effect.