Coating liquid for forming ultraviolet absorbing coatings and ultraviolet absorbing glass
A technology that absorbs coatings and ultraviolet rays. It is applied in the direction of radiation-absorbing coatings, coatings, and synthetic resin layered products. Ensure consistent color and ensure weather resistance
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Embodiment 1
[0093] With 10g ethyl orthosilicate and 0.1g sodium tungstate (Na 2 WO 4 ) as a raw material, with ethanol, Virahol and deionized water as a solvent, stirring and ultrasonically dispersing the raw material and solvent; the raw material and solvent after stirring and ultrasonic dispersion are hydrolyzed and co-condensed to obtain a partially hydrolyzed condensate Silica sol B in the form of sol B; 2,4-dihydroxy-2',4'-dimethoxybenzophenone UV absorber 1.2g and 0.02g of KH560 (Nanjing Dawn), after stirring until the ultraviolet absorber is dissolved, continue to stir for 2 hours to obtain the coating solution C for forming the ultraviolet absorbing coating;
[0094] A thickness of 3.2mm is prepared, the color is L*=95.67, a*=-1.53, b*=1.28, and the size is 150mm×150mm float white glass (FUYAO 3.2C) as the glass substrate, the ultraviolet radiation of the glass substrate The rate is 31.67%. 2.3 g of coating solution C was evenly coated on the surface of the glass substrate, and...
Embodiment 2
[0106] Prepare a thickness of 3.2mm, color L * =93.02, a * =-4.57,b * =1.62, the float green glass (FUYAO 3.2G) with a size of 150mm×150mm is used as the glass substrate, and the ultraviolet blocking rate of the glass substrate is 59.11%. Other parameters are exactly the same as in Example 1, and a UV-absorbing glass with a UV-absorbing coating is obtained. The ultraviolet absorbing glass in Example 2 was evaluated according to the performance evaluation method in Example 1, and the evaluation results are shown in Table 1.
Embodiment 3
[0108] Prepare a thickness of 3.2mm, color L * =89.47, a * =-7.23,b * =4.25, and the float green glass (FUYAO solar 3.2SG) with a size of 150mm×150mm was used as the glass substrate, and the ultraviolet blocking rate of the glass substrate was 76.49%. Other parameters are exactly the same as in Example 1, and a UV-absorbing glass with a UV-absorbing coating is obtained. The ultraviolet absorbing glass in Example 3 was evaluated according to the performance evaluation method in Example 1, and the evaluation results are shown in Table 1.
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