Chemical Industry and Engineering Progree

Previous Articles     Next Articles

Preparation of TiO2/SiO2 composite film and its self-cleaning properties

DONG Rulin,LIU Shuyun,CHEN Zhidong,JIN Changchun,WANG Caixia   

  1. School of Petrochemical Engineering,Changzhou University,Changzhou 213164,Jiangsu,China
  • Online:2013-03-05 Published:2013-03-05

TiO2/SiO2复合薄膜的制备及其自清洁性能

董如林,刘淑赟,陈智栋,金长春,王彩霞   

  1. 常州大学石油化工学院,江苏 常州 213164

Abstract: TiO2/SiO2 composite film with self-cleaning property has been prepared using nanosize TiO2 particles produced by hydrothermal method and SiO2 polymeric particles by dip-coating technique. Effect of the volume fraction of SiO2 has been investigated on the surface morphology,visible light transmittance,photo-induced hydrophilicity and self-cleaning property of the composite film. As the volume fraction of SiO2 is increased,surface roughness,visible light transmittance,photo-induced hydrophilicity and self-cleaning property of the film show a similarity law over the SiO2 fraction,namely,when the volume fraction of SiO2 is about 25%,the above properties of the film reach a maximum or a minimum. With SiO2 volume fraction of 25%,the film can still show superhydrophilicity after having been kept outdoors for 28 days.

Key words: TiO2/SiO2 composite film, self-cleaning, roughness, light transmittance

摘要: 利用热陈化法得到的纳米TiO2粒子及SiO2聚合物胶粒通过浸渍-提拉技术制备了具有自清洁功能的TiO2/SiO2复合薄膜。考察了SiO2的复合比例对薄膜的表面形貌、透光率、光致亲水及自清洁性能的影响。随着SiO2复合体积分数的增大,薄膜的表面粗糙度、可见光透过率、光致亲水及自清洁性能显示了相似的变化规律。即在V(SiO2)= 25%左右时,薄膜的各项特性或性能达到最大值或最小值。该薄膜在室外放置28天后,仍能显示超亲水性能。

关键词: TiO2/SiO2复合薄膜, 自清洁, 粗糙度, 透光率

京ICP备12046843号-2;京公网安备 11010102001994号
Copyright © Chemical Industry and Engineering Progress, All Rights Reserved.
E-mail: hgjz@cip.com.cn
Powered by Beijing Magtech Co. Ltd