11 results about "Polydimethylsiloxane" patented technology

The invention discloses an environment-friendly ceramic coating material for a water faucet. The environment-friendly ceramic coating material for the water faucet is prepared according to a formula comprising the following raw material components in percentage by mass: 80-100 parts of fluorocarbon resin, 8-10 parts of organosilicone oil, 3-5 parts of naphtha, 6-8 parts of polydimethylsiloxane, 10-12 parts of absolute ethyl alcohol, 5-8 parts of alkylphenol polyoxyethylene, 6-8 parts of castor oil polyethenoxy ether, 30-35 parts of an acrylic resin emulsion, 6-8 parts of a nano graphene oxide solution, 10-12 parts of perfluoropolyether, 5-6 parts of sodium chloride, 6-8 parts of disodium hydrogen phosphate, 5-6 parts of aluminum oxide, 6-10 parts of glass fiber powder, 5-8 parts of zinc powder, 6-8 parts of copper powder, 8-10 parts of carbon fiber powder, 8-10 parts of polybutylene terephthalate, 6-8 parts of calcium stearate, 5-8 parts of zinc stearate, 7-9 parts of sodium methyl silicate, 3-5 parts of isobutyl isobutyrate, 6-8 parts of ethlene bisstearamide and 8-10 parts of diethylene glycol monobutyl ether. The environment-friendly ceramic coating material for the water faucet has the advantages of corrosion resistance, wear resistance, high adhesive force, bright and clean appearance and compact coating structure.

The invention discloses a gas-liquid converting stable borehole liquid for well drilling as well as a preparation method thereof and belongs to the drilling engineering field of petroleum industry. The stable borehole liquid is prepared from the following components in parts by weight: 30-60 parts of base oil, 5-10 parts of a cationic surface active agent, 2-5 parts of a nonionic surfactant, 3-10 parts of polydimethylsiloxane, 10-15 parts of oil soluble resin, 5-10 parts of petroleum asphalt, 5-10 parts of polymeric alcohol and 5-20 parts of deionized water. The preparation method comprises the following steps: heating and stirring the base oil and nonionic surfactant in a reaction kettle; adding the cationic surface active agent to stir; adding polydimethylsiloxane to stir; adding the oil soluble resin and petroleum asphalt to stir; adding the polymeric alcohol and water to continuously stir; then, cooling to 25+/-5 DEG C under a stirring condition and discharging and packaging. The gas-liquid converting stable borehole liquid disclosed by the invention is used for solving the problem that a protective layer is unevenly and discontinuously covered due to viscosity factor and solving the problem that the anti-scouring capacity of the single protective layer is low.

The invention discloses a novel moisture-curing flame-retardant polyurethane hot melt adhesive and a preparation method thereof. The novel moisture-curing flame-retardant polyurethane hot melt adhesive is characterized by being prepared from 1-20 parts of polyether diols, 1-35 parts of liquid polyester diols, 1-40 parts of flame-retardant polyether glycol, 1-35 parts of crystalline polyester diols, 1-35 parts of an isocyanate-containing modified polyacrylic acid fluorosilicone copolymer, 1-50 parts of isocyanate, 0.01-1 part of a catalyst, 0.01-1 part of an antioxidant and 0.1-2 parts of a silane coupling agent. The isocyanate-containing modified polyacrylic acid fluorosilicone copolymer is synthesized firstly, the chemical structure of the copolymer is poly(hexafluorobutyl acrylate-random-monomethacryloxypropyl terminated polydimethylsiloxanes-random-methyl acrylate-random-isocyanatoethyl methacrylate, the copolymer is added to a polyurethane prepolymer and subjected to condensation polymerization, a fluorosilicone-containing acrylate copolymer chain segment and a reaction type flame retardant are introduced and have an efficient synergistic effect, and therefore, comprehensive chemical resistance, oil resistance, water resistance and flame retardance are improved.

The invention discloses a panel lamp adhesive and a comprehensive performance evaluation method thereof. The panel lamp adhesive is prepared from the following components in parts by weight: 30 to 60parts of alpha, omega-dihydroxy polydimethylsiloxane, 2 to 8 parts of a cross-linking agent, 0.1 to 1.0 part of a stabilizer, 30 to 60 parts of a reinforcing filler, 2 to 10 parts of white paste, 0.1to 2.0 parts of a special self-prepared auxiliary agent and 0.5 to 2.0 parts of a catalyst. The quick-curing panel lamp adhesive provided by the invention has the characteristics of high temperature resistance, high humidity resistance, fogging resistance, stable illumination, quick surface drying and curing, good cohesiveness and excellent product stability.

The invention discloses a preparation method of a 12 [mu]m battery aluminum foil. The 12 [mu]m battery aluminum foil is obtained through the steps of smelting, cast rolling, cold rolling, foil rolling and slitting; the specific smelting method comprises the steps that copper, silicon, iron, magnesium, zinc, manganese, titanium, an additive and aluminum are mixed and smelted, refining is carried out, standing is carried out after refining is completed, and melt is obtained; the additive is prepared by mixing the raw materials including expandable graphite, a strontium-titanium dioxide-silicon dioxide composite nano material, aluminum powder and polydimethylsiloxane. Through specific raw material combination, the basic mechanical performance is guaranteed.

The invention relates to the technical field of dyeing auxiliaries and particularly relates to a preparation method of a color fixing agent for mercerized wool deep green dyeing. The preparation method comprises the following steps: preparing the following raw materials in parts by mass: 20-25 parts of polydimethylsiloxane, 7-12 parts of ethanol, 5-8 parts of triethanolamine, 1-2 parts of polypropylene glycol, 3-6 parts of triethylene triamine, 2-8 parts of fatty alcohol-polyoxyethylene ether, 2-4 parts of formic acid and 100-200 parts of water; putting the raw materials into a stirring tank,and continuously stirring for 20-30 min at 120 rpm at 45 DEG C to obtain the color fixing agent for mercerized wool deep green dyeing. According to the preparation method of the color fixing agent formercerized wool deep green dyeing provided by the invention, the obtained color fixing agent can effectively improve the color fastness of the mercerized wool dyed by the deep green dye while effectively avoiding the phenomena such as color fading after the mercerized wool dyeing.