Facile fabrication of superhydrophobic surfaces on wood substrates via a one-step hydrothermal process

被引:0
|
作者
Liu, Ming [1 ]
Qing, Yan [1 ]
Wu, Yiqiang [1 ]
Liang, Jin [1 ]
Luo, Sha [1 ]
机构
[1] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
Wood substrate; Superhydrophobic surface; Bionic nanocomposite; One-step hydrothermal process; SOL-GEL; ZNO NANOSTRUCTURES; WATER-REPELLENT; COMPOSITE; GROWTH;
D O I
10.1016/j.Apsusc.2015.01.024
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
Superhydrophobic nanocomposite surfaces were successfully fabricated on wood substrates via a onestep hydrothermal process. The morphology of the nanocomposite surfaces was characterized using scanning electron microscopy (SEM), and the elemental composition was determined via energy-dispersive X-ray spectrometry (EDS), X-ray diffraction (XRD) analysis, and Fourier transform infrared (FTIR) spectroscopy. The results indicated that the crystallization of the anatase phase of TiO2 was prevented because of the presence of vinyltriethoxysilane [VTES, CH2CHSi(OC2H5)(3)] during the hydrothermal process. In addition, the nanocomposite contained Ti/Si particles with diameters ranging from 50 to 100 nm that thoroughly covered the wood substrate. Furthermore, the roughness coupled with the presence of low surface free energy groups led to superhydrophobicity; the static water contact angle (WCA) was as high as 153, and the sliding angle was very low. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:332 / 338
页数:7
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