58results about How to "Prevent phase separation" patented technology

The invention discloses an anion-exchange membrane and a preparation method thereof. The preparation method comprises the following steps of: mixing a macromolecular reinforcing agent, a polymerizing monomer, an initiator and a cross-linking agent to obtain a casting solution; sequentially coating and heating the casting solution to form a macromolecular copolymer; and then carrying out quaterisation treatment to obtain the anion-exchange membrane. According to the invention, the cross-linking agent containing multifunctional groups is added to the preparation process of the anion-exchange membrane; benzyl chloride groups in the macromolecular copolymer, formed by polymerizing monomers, and amino groups contained in the cross-linking agent are nucleophilically substituted, and meanwhile, cardo in the macromolecular reinforcing agent and primary amine groups contained in the cross-linking agent are lactamized, so that the macromolecular reinforcing agent and the macromolecular copolymer are cross-linked by using the cross-linking agent, the phase-splitting between the macromolecular copolymer and the macromolecular reinforcing agent is avoided, and the stability of the membrane is improved. Meanwhile, the method can be used for avoiding use of an organic solvent and has remarkable economic and environmental benefits.

The invention discloses a mutton fat jade ceramic tile and a preparation method thereof. The preparation method comprises the following steps that a mutton fat jade green body is prepared, and mineralcompositions of the mutton fat jade green body comprise, by mass, 42.0%-50.0% of light-transmitting potassium feldspar, 37.0%-43.0% of acicular light-transmitting kaolin and 7.0%-21.0% of fused quartz sand; a design pattern is printed on the mutton fat jade green body in an ink-jet mode; and a mutton fat jade protective glaze is applied to the mutton fat jade green body subjected to ink-jet printing of the designed pattern, and firing is conducted to obtain the mutton fat jade ceramic tile. The mineral composition of the mutton fat jade protective glaze includes the following components in percentage by mass: 35.0 to 45.0 percent of light-transmitting potassium feldspar, 20.0 to 30.0 percent of acicular light-transmitting kaolin, 12.0 to 18.0 percent of fused quartz, 4.0 to 6.0 percent ofcorundum, 6.0 to 8.0 percent of barium carbonate and 1.0 to 3.0 percent of zinc oxide.

The invention discloses a core-double shell structure composite nickel-cobalt-manganese ternary precursor material and a preparation method and an application thereof. The core-double shell structurecomposite nickel-cobalt-manganese ternary precursor material comprises an inner core, a secondary shell layer and an outermost shell layer, wherein a chemical formula of the inner core material is Nix1Coy1Mn(1-x1-y1)CO3, x1 is greater than 0 and less than 1, y1 is greater than 0 and less than 1, and 1-x1-y1 is greater than 0 and less than 1, at least one part of an outer surface of the inner coreis coated with the secondary shell layer, a chemical formula of a material of the secondary shell layer is Nix2Coy2M(1-x2-y2)(OH)2, M is Mn and/or Al, x2 is larger than 0 and smaller than 1, y2 is larger than 0 and smaller than 1, and 1-x2-y2 is larger than 0 and smaller than 1, an outermost shell layer coats at least one part of an outer surface of the secondary shell layer and is made of metal hydroxide and/or metal oxide. The material is advantaged in that the single battery prepared from a positive electrode material prepared from the core-double shell structure composite nickel-cobalt-manganese ternary precursor material can realize long cycle life on the basis of high specific energy, so a vehicle loaded with the battery has excellent cruising ability, and use requirements of consumers are met.

The invention relates to a hollow glass microsphere as well as a preparation method and application thereof; the hollow glass microsphere comprises a body and a closed cavity arranged in the body. Theraw materials of the body comprise, by mass, 45%-80% of silicon dioxide, 6%-15% of aluminum oxide, 10%-35% of boron oxide, 0.1%-15% of calcium oxide, 0.1%-7% of magnesium oxide and 2%-10% of titaniumdioxide. By controlling the composition and mass percentage of the raw materials of the body, the hollow glass microsphere with stable structure and excellent dielectric property can be obtained, andwhen the hollow glass microsphere is applied to a circuit substrate, the circuit substrate with lower and more stable Dk and Df can be obtained.

The invention discloses an organic plastic scintillator and a preparing method thereof and a light conversion device, and belongs to the technical field of organic plastic scintillators. The preparingmethod includes the steps that liquor of a vinyltoluene solution with dispersed 2,5-diphenyloxazole is degassed in a sealed container, the obtained product is heated to 125 DEG C to 150 DEG C for thefirst time and reacted for 4 h to 8 h, and then is slowly cooled to the normal temperature, and a precursor is obtained; the precursor is heated to 120 DEG C to 140 DEG C for the second time and solidified to be cooled to the normal temperature. An implementation method of the organic plastic scintillator is simple and convenient, the formula is simple, raw materials are environmentally friendly, the organic plastic scintillator prepared with the method is free of bubbles, free of embrittlement, good in stability, free of toxic and side effects and high in light transmittance, resolution ratio and response speed. The organic plastic scintillator is prepared with the method. The light conversion device comprises the organic plastic scintillator and can be used for detecting and diagnosinghigh-energy particles and radial rays.

The invention provides a high-hydrophobicity high temperature-resistant fluorescent coating preparation method, which belongs to the technical field of a hydrophobic fluorescent coating. The preparation method comprises the following steps: dispersing polymeric microsphere in an organic solvent, performing coordination on the polymeric microsphere and a micromolecule ligand and a rare earth compound, and coating a matrix with a solution after coordination to obtain the high-hydrophobicity fluorescent coating. The coating takes microsphere as a unit for spot-light illumination, luminescence isuniform, and no phase-splitting problem is generated. The particle size of the polymeric microsphere is at a micron order, enough roughness can be provided, cracking cannot be generated on the coating, and the high hydrophobicity of the coating can be guaranteed. The preparation method has the advantages of simple process and economy, and can be used for industrial production.

The invention relates to a phase-change cold storage compound and a preparation method thereof. The phase-change cold storage compound comprises sodium sulfate decahydrate, a nucleating agent, a thickening agent and a temperature regulator. Wherein based on 100 parts by mass of the sodium sulfate decahydrate, the mass parts of the nucleating agent, the thickening agent and the temperature regulator are respectively 0.5-5 parts, 0.5-5 parts and 10-20 parts; wherein the phase-change cold storage compound further comprises a carbon nano material, and based on 100 parts by mass of the sodium sulfate decahydrate, the mass part of the carbon nano material is 1-5 parts. By optimizing the formula design of the phase-change cold storage composite material, the composite material has the characteristics of safety, no toxicity, low production cost, small degree of supercooling, high cold storage density and good material stability, and can be applied to use scenes needing 4-8 DEG C, such as a phase-change cold storage system of an air conditioner.

The invention discloses an antibacterial anti-aging flame-retardant dendritic polyacrylate emulsion and a preparation method thereof. The antibacterial anti-aging flame-retardant dendritic polyacrylate emulsion comprises the following raw materials in parts by mass: 50 to 70 parts of methyl acrylate, 20 to 30 parts of acrylic acid, 10 to 15 parts of itaconic acid, 10 to 15 parts of melamine, 3 to 7 parts of amino trimethylene phosphonic acid, 5 to 15 parts of glucose, 10 to 20 parts of tetraethylenepentamine, 1 to 2 parts of a catalyst, 0.5 to 1.5 parts of an initiator, 15 to 25 parts of modified nano zirconium phosphate, 2 to 3 parts of allyloxy nonylphenoxy propanol polyoxyethylene ether ammonium sulfate, 30 to 40 parts of N, N-dimethylformamide and 80 to 120 parts of deionized water. The preparation method comprises the following steps: carrying out amidation reaction on-NH2 in melamine and amino trimethylene phosphonic acid and-COOH in acrylic acid and itaconic acid, carrying out esterification reaction and amidation reaction on glucose and tetraethylenepentamine serving as an inner core and free-COOH of a system, or carrying out reaction on glucose and tetraethylenepentamine and-H2PO3, and carrying out copolymerization on the obtained product and methyl acrylate under the action of an initiator so as to obtain a polyacrylate branched chain inner shell, and crosslinking thepolyacrylate branched chain inner shellwith the modified nano zirconium phosphate to realize molecular modification.

The invention discloses a degradable plastic mulching film based on PBAT. The degradable plastic mulching film comprises the following components: PBAT, PE, iron-based montmorillonite and modified polysiloxane. Wherein the modified polysiloxane is a product prepared by carrying out condensation reaction on hydrogen-containing silicone oil and polyalcohol monomethyl ether. The modified polysiloxane can greatly improve the compatibility between the PBAT and the PE and the blending uniformity between the PBAT and the PE and other auxiliaries, so that the composite material has stable and uniform mechanical properties and degradability when being used as a degradable plastic mulching film, and phase separation hardly occurs under extreme weather conditions.

The invention discloses wear-resistant SBS modified asphalt and a preparation method thereof, the wear-resistant SBS modified asphalt comprises the following components in parts by weight: 90-100 parts of asphalt, 2-6 parts of modified SBS and 7-13 parts of modified nanoparticles, and the modified SBS comprises the following components: SBS, vinyl chloride, vinyl acetate, methanol, a photoinitiator, a catalyst and diisocyanate. According to the invention, through blending reaction of the isocyanato phenolic acid terminated modified SBS, the epoxy group-containing modified nano particles and the asphalt, the compatibility of the SBS in the asphalt is improved, the phase separation phenomenon is prevented, the stability is improved, the SBS modified asphalt forms a three-dimensional network structure, the nano particles are coated, the limitation on the molecular chain is enhanced, the internal stress is weakened, and the wear resistance and the mechanical property are improved.

The invention discloses an industrialization method for preparation of hollow glass beads based on precursor process. The production technology includes the steps of: 1) preparation of slurry: accurately weighing all components of basic raw materials, a stable dispersing agent and a surfactant; wherein the basic raw materials comprise quartz, borax, calcium carbonate, sodium carbonate, sodium sulfate and sodium phosphate; 2) preparation of a precursor; 3) preparation of hollow glass beads; and 4) surface modification. The stable dispersion slurry prepared by the method provided by the invention has high solid phase content and low surface tension and viscosity, the energy consumption of spray granulation is remarkably reduced, and also the prepared precursor has small particle size span and uniform components, the floating rate of the hollow glass beads can be higher than 96% through combination with a high-temperature negative-pressure vitrification process, and low-temperature circulating air is employed to reinforce the hollow glass bead. The method provided by the invention adopts dry surface modification, has no need for drying again, broadens the application fields of the hollow glass beads while simplifying the technological process, and solves the problem of narrow application field of hollow glass beads.

The invention discloses an anti-aging self-flame-retardant hyperbranched fluorine-containing polyacrylate emulsion and a preparation method thereof. The anti-aging self-flame-retardant hyperbranched fluorine-containing polyacrylate emulsion comprises the following raw materials in parts by mass: 50-60 parts of methyl acrylate, 20-30 parts of methacrylic acid, 15-20 parts of perfluorooctyl ethyl acrylate, 25-35 parts of pentaerythritol tetramine, 15-20 parts of itaconic acid, 10-15 parts of dicyandiamide, 3-5 parts of guanidine phosphate, 4-8 parts of amino trimethylene phosphonic acid, 1-2 parts of a catalyst, 0.5-1.5 parts of an initiator, 20-30 parts of functionalized layered double hydroxides, 2-3 parts of allyloxy nonylphenoxy propyl alcohol polyoxyethylene ether ammonium sulfate, 25 to 30 parts of N, N-dimethyl formamide and 80 to 120 parts of deionized water. The fluorine-containing hyperbranched fluorine-containing polyacrylate emulsion prepared by the method disclosed by the invention has excellent self-flame-retardant, antibacterial and anti-aging characteristics, high molecular weight, excellent solubility, hydrophobic and oleophobic properties and high film-forming stability.