期刊
APPLIED SURFACE SCIENCE
卷 257, 期 22, 页码 9362-9365出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2011.05.089
关键词
Superhydrophobic; ZnO coating; Stearic acid; Wood surface
类别
资金
- Fundamental Research Funds for the Central Universities [DL09DBQ01]
- National Natural Science Foundation of China [31000271]
A layer of lamellar superhydrophobic coating was fabricated on a wood surface through a wet chemical process. The superhydrophobic property of the wood surface was measured by contact angle (CA) measurements. The microstructure and chemical composition of the superhydrophobic coating were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). An analytical characterization revealed that the microscale roughness of the lamellar particles was uniformly distributed on the wood surface and that a zinc stearate monolayer (with the hydrophobic groups oriented outward) formed on the ZnO surface as the result of the reaction between stearic acid and ZnO. This process transformed the wood surface from hydrophilic to superhydrophobic: the water contact angle of the surface was 151 degrees, and the sliding angle was less than 5 degrees. (C) 2011 Elsevier B.V. All rights reserved.
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