溶胶-凝胶法制备锆/有机硅复合薄膜  

Preparation of Zirconia/Organosilicone Thin Film by Sol-Gel Method

作　　者：陆静娟[1] 郭兴忠[1] 杨辉[1] 张瑞捷[1] 张俊[1] 

机构地区：[1]浙江大学纳米科学与技术中心,杭州310027

出　　处：《硅酸盐通报》2006年第5期133-136,共4页Bulletin of the Chinese Ceramic Society

基　　金：浙江省重点科技项目(NO.011060).

摘　　要：以氧氯化锆(ZrOCl_2·8H_2O)和γ-氨丙基三乙氧基硅烷(KH-550)为先驱体,采用溶胶-凝胶法通过共缩聚反应在聚碳酸酯(PC)板表面制备了锆/有机硅复合薄膜,采用TG/DTA、FTIR、UV-VIS、金相显微镜及铅笔硬度测试方法对复合薄膜的结构及性能进行表征。研究结果表明,通过共缩聚反应,PC板表面形成带有机基团的无机交联网络结构,基本骨架由Si—O—Si,Si—O—Zr,Zr—O—Zr组成;当KH-550与氧氯化锆的物质的量比不低于21时,涂膜PC板的透过率较高,表面较平整;去离子水对薄膜性能的影响较小,水与氧氯化锆的用量在801～201内均可以。PC板镀膜后硬度也由2B提高到H,膜层与基体的结合较好,不易脱落。With zirconium oxychloride and γ-aminopropyltriethoxysilane （KH-550） as precursor, the hybrid film composed of zirconia and organosilicone was prepared on polycarbonate through co-condensation reactions by sol-gel method. The structure and properties of films were studied by TG/DTA, FTIR, UV-VIS, metallographic microscope and pencil hardness test. The results show that the crosslinked inorganic structure endcapped with organic groups formed on the PC by the co-condensation reaction, whose base backbone is composed of Si-O-Si, Si-O-Zr and Zr-O--Zr network structure. When the molar ratio of KH-550 to zirconium oxychloride is above 2, the transparency and surface morphology are excellent. The proper molar ratio of zirconium oxychloride to water is between 80 ： 1 and 20 ： 1. The hardness of PC increases from 2B to H after coated, apart with a good coating adhesion of films to the substrate.

关 键 词：氧氯化锆 Γ-氨丙基三乙氧基硅烷 薄膜 缩聚 

分 类 号：TQ134.12[化学工程—无机化工]