35results about How to "Excellent resistance to artificial aging" patented technology

The invention relates to a broad-spectrum heat isolating and insulating coating compound which is prepared from the following components in percentage by weight: 30 to 40 percent of fluorine modified silicone-acrylate emulsion, 8 to 16 percent of hollow composite ceramic beads, 8 to 15 percent of infrared reflective nano material, 0.5 to 2 percent of molecular bridge modified material and 16 to 20 percent of titanium dioxide. The coating has sunlight radiation function and normal temperature infrared transmission function of a reflective broad-spectrum waveband, can reflect the sunlight radiation of the broad-spectrum waveband, can reflect at least 54 percent of sunlight radiation full-spectrum energy and greatly reduces the absorption of the outer surface of a wall to the sunlight energy; simultaneously, the cooperation of the added hollow composite ceramic beads and other raw materials also converts at least 58 percent of the absorbed sunlight energy into infrared rays to be radiated to the air in an atmospheric window waveband, thereby reducing the indoor heat transfer of the inner surface of the wall.

The invention relates to a self-blocking oil polyether-2 phosphate modified water-based acrylic anticorrosion resin and a preparation method thereof. In parts by weight, the components are: 6.0-15.0 parts of oleyl polyether-2 phosphate, 5.0-9.0 parts of crosslinking monomer, 0.6-2.0 parts of benzoyl peroxide, 6.0-12.0 parts of propyl polyoxyethylene epoxy ether, 4.0-7.0 parts of acrylic acid, 65.0-130.0 parts of acrylate hard monomer, acrylic acid 10.0-30.0 parts of ester soft monomer, 2.0-5.0 parts of silane coupling agent, 3.0-8.0 parts of allyl glycidyl ether, 30.0-50.0 parts of co-solvent, 4.0-12.0 parts of neutralizing agent, 100.0-200.0 parts of deionized water part; the self-blocking fuel alcohol polyether-2 phosphate modified water-based acrylic anticorrosion resin prepared by the present invention has good flexibility, artificial aging resistance, acid and alkali resistance, salt spray resistance, corrosion resistance, A series of properties such as flame retardancy, when preparing flame-retardant coatings and anti-corrosion coatings, no additional flame retardants and anti-corrosion agents are required; it can be formulated into one-component and two-component water-based coatings.

The invention discloses a preparation method of an unmodified silica sol / polyacrylate core-shell emulsion, which uses commercially available alkaline silica sol and acrylate monomers as main raw materials, and does not need to perform tedious surface modification treatment on nanoparticles , under the action of reactive emulsifier, make the monomer in the unmodified SiO 2 In situ polymerization occurs on the particle surface, resulting in SiO 2 The seed emulsion is used as the core, and then the acrylate shell is polymerized on the surface of the seed emulsion emulsion to synthesize an unmodified silica sol / polyacrylate core-shell emulsion with excellent performance. The method of the present invention has simple production process and rapid synthesis, and the synthesized unmodified silica sol / polyacrylate core-shell emulsion film has high transparency, water resistance, high hardness, strong adhesion and other properties, and has good stain resistance Pollution, heat resistance, acid and alkali resistance, and environmental protection, flame retardant, is a high-performance, low-cost new environmentally friendly nano-core-shell water-based emulsion, which can be widely used in various coating fields.

The invention discloses an unmodified silica sol / polystyrene-acrylate nano core-shell emulsion and a preparation method thereof. Using commercially available alkaline silica sol, styrene, and acrylic ester monomers as the main raw materials, there is no need for tedious surface modification of nanoparticles. Under the action of reactive emulsifiers, the seed monomers will 2 Surface in-situ polymerization, followed by shell monomer polymerization to form high silica sol / polystyrene-acrylate nano-core-shell polymer emulsion, which has small particle size, high silicon content, high coating rate, stability, etc. Various properties. The method has simple production process and rapid synthesis, and the obtained composite latex has an obvious nano-core-shell composite structure, with nano-silica as the core and styrene-acrylic polyester as the shell; it has good water resistance, stain resistance, and heat resistance. Non-toxic, acid and alkali resistance and other properties, and environmental protection, flame retardant, good transparency. It can be widely used in various coating fields such as high-grade architectural coatings, electronic packaging materials, ship anti-corrosion coatings, etc.