38results about How to "Improve gloss and color retention" patented technology

The invention discloses a bright alkyd resin for interior decoration and furniture coating, which is composed of the following raw materials: glycerin, palmitoleic acid, benzoic acid, adipic acid, neopentyl glycol, phthalic anhydride, pentaerythritol and xylene . Its preparation method comprises the steps of: a. putting palmitoleic acid, benzoic acid, adipic acid, glycerin, neopentyl glycol, phthalic anhydride, pentaerythritol and xylene into a reactor at one time, heating and starting stirring; b. Zhongtong carbon dioxide gas protects the temperature, raises the temperature to 130°C-180°C, and keeps it warm for 1-3 hours. ; c, take a sample to measure the viscosity in step b, when the viscosity reaches a predetermined value, rapidly cool to 130°C-180°C to obtain a modified alkyd resin; d, transfer the modified alkyd resin in step c to another Add 2.5-8.5% xylene into the kettle, and mix evenly to obtain the product water-white alkyd resin liquid of the present invention.

The invention discloses nanometer enamel used for aircraft skin and a preparing method thereof, and belongs to the technical field of paint, mainly solving the technical problems that enamel at present has unsatisfactory ultraviolet radiation aging resistance and thermal ageing resistance and cannot meet requirements of long-term flight of aircrafts. The nanometer enamel comprises following components by weight: 3-5 parts of modified polyester resin, 30-35 parts of acrylic resin, 20-25 parts of titanium dioxide, 3-4 parts of nanometer silicon dioxide, 3-6 parts of a dispersant, 0.5-1 part of a silane coupling agent, 8-10 parts of precipitated barium sulphate, 10-15 parts of a curing agent, 15-36 parts of a mixed solvent, 0.2-0.3 part of a leveling agent, 0.2-0.3 part of a defoaming agent and 0.1-0.3 part of a catalyst. The preparing method includes steps of nanometer material pretreatment, mill base dispersion, paint mixing, filtration, and the like. The nanometer enamel has excellent ultraviolet radiation aging resistance and thermal ageing resistance at the same time of meeting common performance requirements, and can meet requirements of long-term flight of aircrafts.

The invention discloses a polyurea coating, a coating and a preparation method thereof, and relates to the technical field of coatings. The polyurea coating includes component A, which is a mixture of resins, pigments and fillers, and additives, and includes the following components in parts by weight: organofluorosilicon modified polyaspartic acid ester resin 60‑90 parts, 20-40 parts of pigments and fillers and 1-5 parts of auxiliary agents; wherein, the preparation method of the organofluorosilicon modified polyaspartic acid ester resin comprises the following steps: (1) adding polyaspartic acid ester After mixing resin, γ-aminopropyltrialkoxysilane and trifluoropropylmethylcyclotrisiloxane, pass inert gas, after 5-10min, heat up to 50-60°C, stir and add maleic acid dropwise diethyl ester to obtain a mixture; (2) heat the mixture to react for 8-16h, and obtain the organofluorosilicon-modified polyaspartic acid resin after cooling.

The invention provides a resin composition for an anti-counterfeit matrix material protective layer and an anti-counterfeit matrix material. The anti-counterfeit matrix material comprises a surface material, a pattern layer, a protective layer, an ink layer, a dielectric layer, an adhesive layer and release paper in sequence, wherein the protective layer is formed by curing the resin composition with an isocyanate curing agent. Compared with the prior art, the resin composition and the anti-counterfeit matrix material have the beneficial effects that the protective layer takes acrylic resin as the main film forming material and the acrylic resin has better physical and mechanical properties, excellent weather resistance, chemical resistance and water resistance and high light and colour retention and has better protective effects on the pattern layer; meanwhile, the cellulose ester resin is added as an additive accelerator; the hydroxyl of the cellulse ester resin and the isocyanate curing undergo an addition polymerization reaction and then a film is formed by curing, so that the resin composition can form the film quickly; and besides, the cellulose ester resin has better hydrophilicity and lipophilicity and can endow the protective layer with better printing adaptability.

The invention belongs to the field of coating and particularly relates to a high light-retaining and color-retaining acrylic acid modified polyurethane finishing coat and a preparation method thereof.The finishing coat contains a component A and a component B in a weight ratio of 100 to (20-30), wherein the component A contains the following raw materials in parts by weight: 40-50 parts of an acrylate emulsion, 50-60 parts of a polyurethane emulsion, 3-6 parts of an enhancer, 10-15 parts of pigments and fillers, 1-3 parts of a dispersing agent, 0.5-1 part of a defoaming agent, 0-5 parts of other aids and the balance of deionized water; and the component B is a water-based curing agent. The adopted enhancer contains a benzophenone structure with an excellent light stabilization effect andis cable of strongly absorbing ultraviolet light, so that the damage caused by the ultraviolet light to the finishing coat is avoided; and meanwhile, the enhancer has no possibility of being decomposed and decolorized, further contains an N-cyclohexyl p-methoxyaniline structure and has good ozone aging performance, radiation aging resistance and normal aging resistance, and the structure is not decolorized after being placed in air and sunlight for a long time, so that the finishing coat with high light-retaining and color-retaining properties is obtained.

The invention discloses a PIA (meta-phthalic acid) / nanometer titania modified alkyd resin and a preparation method thereof. The PIA / nanometer titania modified alkyd resin comprises the following raw materials: acrylic acid, methylacrylic acid, methyl methacrylate, vinyltriethoxysilane, nanometer titania, epoxy resin, castor oil, trimethylolpropane, 2,2,4-trimethyl-1,3-pentanediol, tetrachlorophthalic anhydride, PIA waste, trimellitic anhydride, triethylamine, ethyl eneglycol monobutyl ether, propylene glycol mono-n-butyl ether, lauric acid, catalytic auxiliary, benzoyl peroxide, dimethylbenzene and water. The PIA / nanometer titania modified alkyd resin provided by the invention is good in water resistance, high in hardness and excellent in comprehensive performance; the PIA waste is used, so that the cost is saved.

The present invention relates to a special-purpose coating for high-density plate material and its preparation method. It is made up by mixing high-molecular film-forming material, pigment, adjuvant and solvent. It is characterized by that the main component of high-molecular film-forming material of said coating is formed from (by weight portion) 40-50 portions of butyl methacrylate (BMA), 30-40 portions of styrene (ST), 10-20 portions of hydroxyethyl methacrylate (HEMA), 0.1-0.5 portion of methyl acrylic acid (MAA), 1-5 portions of initiating agent di-t-butyl peroxide (DTBP), 1-5 portions of organic silicon compound and 1-5 portions of chlorinated polypropylene. The described mixed solvent includes 60-90 portions of butyl acetate, 20-28 portions of cyclohexanone, and 1-6 portions of limonene, in which the fire-resisting agent and UV-ray absorbing agent can be added.