NDLI: Effect of Colloidal Silica on the Photochromic Properties of Hard Coating Films Prepared by Sol-Gel Method

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Effect of Colloidal Silica on the Photochromic Properties of Hard Coating Films Prepared by Sol-Gel Method

Content Provider	Semantic Scholar
Author	Shin, Yong Tak Cho, Kyung Sook Song, Ki Chang
Copyright Year	2011
Abstract	Organic-inorganic hybrid coating solutions were prepared starting from colloidal silica, lanthanum nitrate and γ-glycidoxypropyl trimethoxysilane by the sol-gel method. Also, spiropyran-doped hard coating solutions were pre- pared by mixing the spiropyran solution, obtained after dissolving spiropyran dye into tetrahydrofuran solvent, with the organic-inorgnic hybrid coating solutions. The spiropyran-doped hard coating solutions were applied as a thin layer to polycarbonate sheets, and their photochromic properties were investigated. The effect of amount of colloidal silica added into the coating solutions was investigated on the photochromic properties of coating films. Both decoloration rate and pencil hardness of the coating films were increased with increasing the amounts of colloidal silica.
Starting Page	535
Ending Page	540
Page Count	6
File Format	PDF HTM / HTML
DOI	10.9713/kcer.2011.49.5.535
Volume Number	49
Alternate Webpage(s)	http://ocean.kisti.re.kr/downfile/volume/kiche/HHGHHL/2011/v49n5/HHGHHL_2011_v49n5_535.pdf
Alternate Webpage(s)	https://www.cheric.org/PDF/HHKH/HK49/HK49-5-0535.pdf
Alternate Webpage(s)	https://doi.org/10.9713/kcer.2011.49.5.535
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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