期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 407, 期 -, 页码 482-487出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2013.06.068
关键词
Bionic; Organic-inorganic molecular hybrid; Superhydrophobic surface
资金
- Unilever (China) Investing Company
- National Science Foundation of China [21121001]
The chemical originals of natural superhydrophobic surfaces are based on botanic or animal wax or fat, which have poor chemical and thermal resistance. Herein, we report a simple chemical modification of stearic acid (STA) with gamma-aminopropyl triethoxysilane (APTES), to obtain an organic-inorganic molecular hybrid STA-APTES compound. A flower-like hierarchically structured surface with superhydrophobicity can be obtained simply by casting the STA-APTES solution under ambient circumstance. The crystallization of the hydrocarbon chain from STA leads to the formation of the binary microstructure and reduces the surface tension, contributing to the superhydrophobicity of the as-formed surface. In addition, the condensation of -Si(OCH2CH3)(3) from APTES can lead to the cross-linking of the resultant surface, which endows the as-formed superhydrophobic surface with high performances, such as excellent thermal and solvent resistance, etc. This superhydrophobic surface prepared is superior to its many analogs in nature, promising a wide application especially in harsh circumstance. (C) 2013 Elsevier Inc. All rights reserved.
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