一种纳米TiO2薄膜负载技术及性能研究  

Preparation and Properties of Nano-TiO2 Photo-catalytic Coating Film

作　　者：李协吉[1] 姚亚东[1] 尹光福[1] 游潘丽[1] 尹兆益[1] 

机构地区：[1]四川大学材料科学与工程学院,成都610064

出　　处：《材料导报》2005年第F11期120-121,124,共3页Materials Reports

基　　金：教育部优秀青年教师基金资助项目（2002123）

摘　　要：以硅溶胶为成膜粘结剂、高分子聚乙烯醇为成膜助剂，采用粘结成膜法制备纳米TiO2薄膜，考察了所制得薄膜的光催化性能、耐热性、耐腐蚀性等宏观性能以及耐老化性能。实验结果表明，该纳米薄膜对液相和气相甲醛光降解5h，降解率分别达87％和93％以上；其耐热性、耐水性、耐腐蚀性和界面粘结性能优异；耐老化性能优异，对提高基材的抗老化性能有明显的作用。Silica-sol is used as adhesive to immobilize TiO2 photo-catalyst by the method of adhere to the coating film. The photo-activity, rnacro-capability and aging-resistant performance of the film are studied. The result showes that the degradation ratio of liquid and gaseous formaldehyde are upward of 87% and 90% with the film; the heat-resistant, water-resistant, corrosion protective and adhesion performances are excellent; the fine aging-resistant performance is good for enhancing the aging-resistant performance of the basal materials.

关 键 词：纳米TIO2薄膜 光催化降解 耐老化 粘结成膜法 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ630.49[化学工程—精细化工]