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Citation: SHI Yanlong, FENG Xiaojuan, YANG Wu, WANG Yongsheng. Superhydrophobicity of ZnO Microrod Films Induced by Surface Silane Modification[J]. Chinese Journal of Applied Chemistry, ;2011, 28(4): 402-407. doi: 10.3724/SP.J.1095.2011.00353 shu

Superhydrophobicity of ZnO Microrod Films Induced by Surface Silane Modification

1.
a College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000;
2.
b College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environmental Related Polymer Materials of MOE, Northwest Normal University, Lanzhou

Corresponding author: SHI Yanlong,
Received Date: 21 June 2010
Available Online: 6 September 2010
Fund Project: 国家自然科学基金(20475077)资助项目 (20475077)

ZnO microrod films has been prepared by simple low temperature hydrothermal approach.The films treated with octyltrimethoxysilane and dodecafluoroheptyl-propyl-trimethoxylsilane show super-hydrophobic properties.The static contact angles for water are (150±1.3)° and (155±1.5)°,and the slide angles are about 5° and 3°,respectively.It is believed that the super-hydrophobic property of the modified ZnO microrod films is mainly caused by the microstructures of the films and the modification of octyltrimethoxysilane or dodecafluoroheptyl-propyl-trimethoxylsilane with low surface energy on surfaces.The wettability of the ZnO submicrorod films is also discussed on the basis of Cassie theory.
- ZnO microrod film,
- contact angle,
- wettability,
- super-hydrophobicity
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