具有自洁和耐磨功能SiO2/TiO2减反膜的制备与研究

doi:10.3724/SP.J.1077.2011.00769

无机材料学报 ›› 2011, Vol. 26 ›› Issue (7): 769-773.DOI: 10.3724/SP.J.1077.2011.00769

具有自洁和耐磨功能SiO₂/TiO₂减反膜的制备与研究

王建伍, 白宇辰, 姚微, 王红宁, 陈若愚

(常州大学石油化工学院, 常州 213164)

收稿日期:2010-09-14 修回日期:2010-11-09 出版日期:2011-07-20 网络出版日期:2011-06-20
作者简介:王建伍(1986-), 男, 硕士研究生. E-mail: wangjianwu0017@163.com
基金资助:
江苏省自然科学基金(BK2008143)

Preparation and Investigation of SiO₂/TiO₂ Antireflective Coatings with Self-cleaning and Scratch-resistant Properties

WANG Jian-Wu, BAI Yu-Chen, YAO Wei, WANG Hong-Ning, CHEN Ruo-Yu

(School of Petrochemical Technology, Changzhou University, Changzhou 213164, China)

Received:2010-09-14 Revised:2010-11-09 Published:2011-07-20 Online:2011-06-20
Supported by:
Natural Science Fund of Jiangsu Province (BK2008143)

摘要/Abstract

摘要： 以正硅酸乙酯(TEOS)和钛酸正丁酯(TBOT)为原料, 采用溶胶-凝胶法制备了SiO₂溶胶和TiO₂溶胶, 利用浸渍提拉法制备了SiO₂/TiO₂双层减反膜. 用紫外-可见分光光度计(UV-Vis)、X射线衍射仪(XRD)、扫描电子显微镜(SEM)、原子力显微镜(AFM)、椭圆偏振光谱仪和接触角测量仪等分析表征了薄膜的特性, 以光催化降解甲基橙溶液实验来评价薄膜的自洁功能, 考察了SiO₂/TiO₂双层减反膜的耐磨擦性. 结果表明, SiO₂/TiO₂双层减反膜在400~800nm可见光波段的透光率最高可达97.2%, 薄膜表面平整, 结构致密且粗糙度小, 经紫外灯照射后薄膜的水接触角接近0°, 光催化2h后可将5mg/L的甲基橙溶液降解43.6%. SiO₂/TiO₂减反膜还具有优良的耐磨擦性能.

关键词: 溶胶-凝胶, 减反膜, 自洁功能, 耐磨擦性

Abstract: The SiO₂and TiO₂ Sol were prepared via Sol-Gel process using tetraethyl orthosilicate(TEOS) and tetrabutyl orthotitanate(TBOT), and the SiO₂/TiO₂bilayer coatings with antireflection property were obtained by dip-coating method. The performances of the coatings were analyzed with ultraviolet visible spectrophotometer (UV-Vis), X-ray diffraction (XRD), scanning electron microscope (SEM), atomic force microscope (AFM), ellipsometer and contact angle measurement. The self-cleaning function of coatings was evaluated by means of photocatalytic degradation of methyl orange in aqueous solution, and scratch-resistant property of the coatings was studied. The results indicate that the peak transmission of the SiO₂/TiO₂ bilayer coating is up to 97.2% in the visible band, the coating has a flat surface, a dense structure and a low roughness. After illuminated by ultraviolet light for 2h, the SiO₂/TiO₂ bilayer coating is superhydrophilic with water contact angle up to 0°, and the 5mg/L methyl orange can be degraded by 43.6% in 2h. Moreover, the SiO₂/TiO₂ bilayer coating has an excellent scratch-resistant property.

Key words: Sol-Gel, antireflective coatings, self-cleaning, scratch-resistant

中图分类号:

TB34

王建伍, 白宇辰, 姚微, 王红宁, 陈若愚. 具有自洁和耐磨功能SiO₂/TiO₂减反膜的制备与研究[J]. 无机材料学报, 2011, 26(7): 769-773.

WANG Jian-Wu, BAI Yu-Chen, YAO Wei, WANG Hong-Ning, CHEN Ruo-Yu. Preparation and Investigation of SiO₂/TiO₂ Antireflective Coatings with Self-cleaning and Scratch-resistant Properties[J]. Journal of Inorganic Materials, 2011, 26(7): 769-773.

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具有自洁和耐磨功能SiO₂/TiO₂减反膜的制备与研究

Preparation and Investigation of SiO₂/TiO₂ Antireflective Coatings with Self-cleaning and Scratch-resistant Properties

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