溶胶-凝胶SiO_2在变色薄膜中的应用  

Application of sol-gel SiO_2 in optically variable film

作　　者：倪星元[1] 吕俊霞[1] 邓忠生[1] 沈军[1] 王珏[1] 

机构地区：[1]同济大学波耳固体物理研究所,上海200092

出　　处：《功能材料》2002年第4期435-436,439,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目 (5980 2 0 0 7;699780 1 7) ;863激光技术青年科学基金资助课题 (2 0 0 1 1 2 )

摘　　要：变色薄膜是一种非常有用的光学产品。用溶胶 凝胶SiO2 作为变色薄膜中的介质层 (Cr/SiO2 /Al)能明显提高产品的质量和生产效率。本文介绍了溶胶 凝胶SiO2 薄膜的制作方法 ,提出了用酸性催化控制SiO2 溶胶过程 ;用网线辊涂布的方法形成薄膜 ,连同烘烤后处理完成SiO2 凝胶过程。文章还对SiO2Optically variable film is an optical product that is of great use to prevent counterfeiting of value document or commodity. SiO 2 coating is an important optical medium between both metal coatings i.e. Cr/SiO 2/Al. It can raise the product quality and production efficiency with SiO 2 coating. The coating was deposited by sol gel technology. The silicate dioxide solution was catalyzed by a acid (HCl). The sol gel process was completed in roll coating and thermal treatment. In this paper had discussed optical property and prepare of the coating.

关 键 词：薄膜 溶胶-凝胶 SIO2 变色薄膜 

分 类 号：O484[理学—固体物理]