Preparation of superhydrophobic cotton fabrics based on SiO2 nanoparticles and ZnO nanorod arrays with subsequent hydrophobic modification

被引：120

作者：

Xu, Bi ^{[1
]}

Cai, Zaisheng ^{[1
,2
]}

Wang, Weiming ^{[1
]}

Ge, Fengyan ^{[1
]}

机构：

[1] Donghua Univ, Coll Chem Chem Engn & Biotechnol, Shanghai 201620, Peoples R China

[2] Donghua Univ, Minist Educ, Key Lab Sci & Technol Ecotext, Shanghai 201620, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 204卷 / 9-10期

关键词：

Superhydrophobic; Cotton fabrics; ZnO nanorods; SiO2; nanoparticles; SILICA NANOPARTICLES; SURFACES; TEXTILES; FILMS; CELLULOSE; FIBERS; ROUTE;

D O I：

10.1016/j.surfcoat.2009.09.086

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Superhydrophobic cotton fabrics were prepared by fabricating rough surfaces using SiO2 nanoparticles and ZnO nanorod arrays together with subsequent n-dodecyltrimethoxysilane (DTMS) modification. The as obtained products were characterized by particle size analyzer, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), scanning probe microscope (SPM) and X-ray photoelectron spectroscopy (XPS) respectively. The prepared SiO2 nanoparticle and ZnO nanorod show a similar diameter while the ZnO namorod has a much higher aspect ratio. The wettability, of the cotton fabric samples was investigated by water contact angle (WCA) and roll-off angle measurements. Both treated cotton fabrics exhibit superhydrophobicity with static WCAs of more than 150 degrees for a 5 mL water droplet. The lower roll-off angle of a ZnO treated cotton fabric, which is attributed to the discontinuous three-phase contact line, shows better water-repellent properties. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1556 / 1561

页数：6

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