期刊
SURFACE & COATINGS TECHNOLOGY
卷 204, 期 9-10, 页码 1556-1561出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2009.09.086
关键词
Superhydrophobic; Cotton fabrics; ZnO nanorods; SiO2 nanoparticles
资金
- Donghua University (DHU) [105-06-0019017]
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.
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