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33results about "Casein coatings" patented technology

Solar selective heat-absorbing coating

The invention discloses a solar selective heat-absorbing coating. A light absorbing agent, a film forming agent, a solvent and an aid are evenly dispersed with a ball-milling method, a coalescing agent is added, and the solar selective heat-absorbing coating can be obtained after mixing. The coating is prepared from raw materials in parts by weight as follows: 50-100 parts of the film forming agent, 10-30 parts of the coalescing agent, 35-55 parts of the light absorbing agent, 20-50 parts of the solvent and 10-30 parts of the aid; the coalescing agent is propylene glycol butyl ether, propylene glycol monomethyl ether acetate and the like; a preparation method of the film forming agent comprises steps as follows: casein and gelatin are mixed in the weight ratio being (5-10):(2-3), water is added, the mixture is soaked at 15-22 DEG C and then transferred to a normal-temperature environment, a mixture of methyl acrylate and hexamethyldisiloxane in the weight ratio being (1-2):)(1-3) is added, the mixture is stirred and then irradiated under ultraviolet light for 10-15 min, and then modified casein-gelatin is obtained. The film forming agent is modified to be used as an important raw material for preparing the coating, the prepared coating has good weather resistance and waterproofness outdoors, the preparation process is simple and easy to understand, and the heat absorption efficiency of the heat-absorbing coating is guaranteed.
Owner:GUANGXI CHAOXING SOLAR ENERGY TECH
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