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A technology of exterior wall paint and cold paint, applied in the field of exterior wall paint and thermal insulation exterior wall paint, can solve the problems of failure to find high-reflectance pigments, no attention to coating self-cleaning function and anti-aging function, single color of paint, etc.
Inactive Publication Date: 2010-10-27
刘立新
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Problems solved by technology
[0010] 1. The design of thermal insulation coating products often focuses on the realization of the reflective heat insulation function, and comes with the functions of blocking heat insulation and radiation heat insulation, but it does not really design products from the three heat insulation mechanisms. In terms of solar heat insulation, the synergistic effect of the three heat insulation mechanisms of blocking heat insulation, radiation heat insulation and reflective heat insulation is realized to achieve high-efficiency heat insulation
[0011] 2. The color of the paint is single, mainly white,...
Method used
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preparation example Construction
[0050] 2. Preparation of topcoat
[0051] According to a certain mass ratio, add cold pigment, rutile titanium dioxide, and infrared ceramic powder into the water-based silicone acrylic emulsion, stir at a low speed, and mix evenly. Add defoamer, wetting agent, etc., and stir at high speed. Stirring time varies depending on the amount of materials, generally around 30 minutes. Then add a little film-forming aid to prepare the top coating.
[0052] 3. Preparation of intermediate coating
[0053] Under the condition of the speed of the high-speed disperser at 500-800r / min, according to a certain mass ratio, add water, dispersant, wetting agent, defoamer and other additives in sequence. After adding titanium dioxide and colored pigments, increase the rotation speed to 5000r / min for high-speed dispersion.
[0054] After dispersing for 30 minutes, use a scraper fineness meter to measure the maximum particle size of the pigment and filler below 60 μm, adjust the speed of the hig...
example 1
[0057] Product application environment: hot and humid environment
[0058] Preparation of silicone acrylic emulsion:
[0059]
[0060] Intermediate coating preparation
[0061]
[0062]
[0063] Topcoat preparation
[0064]
example 2
[0066] Product application environment: hot and dry environment
[0067] Preparation of silicone acrylic emulsion:
[0068]
[0069] Intermediate coating preparation
[0070]
[0071] Topcoat preparation
[0072]
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Abstract
The invention discloses an aqueous cold pigment double-coat multifunctional thermal-insulation external wall paint and a preparation method thereof. The invention belongs to the field of paint, and relates to an external wall paint based on an aqueous organic silicone-acrylate emulsion, particularly a thermal-insulation external wall paint. The invention provides an aqueous cold pigment double-coat multifunctional thermal-insulation external wall paint. The paint is composed of a top-coat component and an intermidiate-coat component, wherein the top-coat component comprises aqueous organic silicone-acrylate emulsion, cold pigment, glass hollow microspheres, ceramic hollow microspheres, rutile type titanium dioxide, nano infrared emission ceramic powder, superfine French chalk, infrared emission ceramic powder, accessory ingredients and water. In the painting process, the top-coat and intermediate coat are used separately and respectively form a film. The paint can perform the functions of self cleaning and thermal insulation, thereby achieving the goals of energy saving, consumption reduction and environment protection.
Description
technical field [0001] The invention belongs to the field of coatings, and relates to the preparation of water-based organosilicon acrylic emulsion, and the emulsion is used as a base material to combine cold pigments, glass hollow microspheres, ceramic hollow microspheres, ultrafine infrared emitting ceramic powder, rutile titanium dioxide, etc. Exterior wall coatings prepared for pigments and fillers (including functional fillers). In particular it relates to thermally insulating exterior paints. technical background [0002] At present, the vast majority of buildings in our country are high-energy non-energy-saving buildings. In 2002, the Ministry of Construction issued the "Tenth Five-Year Plan" for Building Energy Conservation, actively promoting building energy conservation, which is conducive to improving people's living and working environment, ensuring the sustained and stable development of the national economy, reducing air pollution, reducing greenhouse gas emis...
Claims
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