Fabrication of superhydrophobicity on cotton fabric by sol-gel

被引：44
|
作者：
Shi, Yanlong [1 ]
Wang, Yongsheng [1 ]
Feng, Xiaojuan [1 ]
Yue, Guoren [1 ]
Yang, Wu [2 ]
机构：
[1] HeXi Univ, Key Lab Hexi Corridor Resources Utilizat, Gansu Univ, Coll Chem & Chem Engn, Zhangye 734000, Peoples R China
[2] NW Normal Univ, Key Lab Ecoenvironm Related Polymer Mat, MOE, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 20期
关键词：
Superhydrophobicity; TiO2; Cotton fabric; ODT; WATER STRIDERS; SURFACES; WETTABILITY; FILMS; LEGS;
D O I：
10.1016/j.apsusc.2012.05.008
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A superhydrophobic cotton fabric was prepared by dip-coating TiO2 for four times and subsequent surface modification with n-octadecylthiol (ODT). The surface morphology, crystal structure and chemical composition are studied by SEM, XRD, and XPS, respectively. Water contact angle on the superhydrophobic cotton fabric is approximately 151 degrees and the glide angle is less than 20 degrees. The results show that two factors of higher surface roughness and lower surface free energy play a crucial role for the formation of the superhydrophobicity. Finally, the formation mechanism of superhydrophobicity on the cotton fabric was discussed on the basis of Wenzel's and Cassie's theory. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：8134 / 8138
页数：5
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