Radiation cooling coating as well as preparation method and application thereof
A technology of coatings and reflective materials, applied in the direction of reflection/signal coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problems of inability to maintain radiation cooling for a long time, achieve low cost, broad application prospects, and simple process effects
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[0031] Example 1
[0032] Add 95 parts of absolute ethanol, 5 parts of deionized water, 15 parts of polyvinyl butyral (Qingdao Haocheng Industry, SD-5) to the high-speed disperser, and stir for 120 minutes at a linear speed of 5m / s to obtain a slurry material. Then add 20 parts of zinc sodium phosphate (1~3μm), 30 parts of silicon dioxide (1~3μm), 2 parts of trimethoxysilane dispersant, 1 part of simethicone defoamer at a speed of 10m / s, 1 part of inorganic silver-based antibacterial agent (Beijing Aisier Technology Co., Ltd., MK-T-111), dispersed for 30 minutes, filtered through a 100-mesh sieve to obtain the radiation cooling coating of the present invention.
Example Embodiment
[0033] Example 2
[0034] Add 60 parts of cyclohexane, 30 parts of isopropanol, 10 parts of deionized water, and 20 parts of ethylene-vinyl acetate copolymer (Yangzi BASF, V5110J) into the high-speed disperser, and stir at a linear speed of 8m / s 20min to obtain slurry. Then add 30 parts of zirconia (1~3μm), 10 parts of silicon dioxide (1~3μm), 2 parts of trimethoxysilane dispersant and 2 parts of simethicone defoamer at a speed of 5m / s, and disperse 15 minutes, filtered through an 80-mesh screen to obtain the radiation cooling paint of the present invention.
Example Embodiment
[0035] Example 3
[0036] Add 95 parts of methyl ethyl ketone, 5 parts of ethylene glycol, and 20 parts of polyvinyl acetate (Xiamen Zhonghuayuan, PVAc-H) to the high-speed disperser, and stir for 60 min at a linear speed of 10 m / s to obtain a slurry. Then add 10 parts of sodium aluminum silicate (1~3μm), 50 parts of alumina (1~3μm), 3 parts of trimethoxysilane dispersant and 2 parts of dimethyl silicone oil defoamer at a speed of 20m / s. Disperse for 45 minutes and filter through an 80 mesh screen to obtain the radiation cooling paint of the present invention.
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