溶胶凝胶法制备TiO_2薄膜及其润湿性研究  

Preparation of TiO_2 Film by Sol-gel Method and It's Wettability

作　　者：贺惠蓉[1] 马养民[1] 胡亚微[1] 杨秀芳[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂与技术重点实验室,西安710021

出　　处：《表面技术》2012年第4期4-6,9,共4页Surface Technology

基　　金：陕西省自然科学基金(2011JQ2009);陕西省教育厅专项科研计划(11JK0561);陕西科技大学博士科研启动基金(BJ10-22);高等学校博士学科点专项科研基金新教师类资助课题(20116125120004)

摘　　要：采用溶胶凝胶法,于金属基片上构筑TiO2薄膜,通过修饰1H,1H,2H,2H-十七氟癸基三甲氧基硅烷后,薄膜显示疏水性。对TiO2凝胶的热稳定性进行分析,结果显示,在450℃及以上的温度进行热处理,有机成分可被全部除掉。对所制备薄膜的物相组成和显微结构进行表征,并考察热处理温度对薄膜表面形貌及润湿性能的影响,结果表明,热处理温度为550℃时,疏水性能最好,达到超疏水性。The TiO2 films were prepared on metal substrates by sol-gel method,and showed hydrophobicity after modified with low-surface-energy material 1H,1H,2H,2H-perfluoro-decyltrimethoxysilane(FAS).The heat-stability of TiO2 gel was investigated by thermogravimetric analysis(TG),and the result displayed that the organic matter was completely decomposed when the temperature was no lower than 450 ℃.The morphology,phases and the crystallographic structures of as-prepared films were charactered.The effect of heat-treatment of TiO2 film on morphology and wettability was investigated.The results indicated that the TiO2 film showed superhyphobicity heat-treated at 550 ℃.

关 键 词：TIO2薄膜 溶胶凝胶法 FAS修饰 润湿性 

分 类 号：O484[理学—固体物理]