期刊
MATERIALS LETTERS
卷 64, 期 20, 页码 2159-2162出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.07.031
关键词
Hollow particles; Silica; Polymer template; Superhydrophobic; Water contact angle
资金
- Ministry of Knowledge and Economy, Republic of Korea
- Korean Government [NRF-2009-351-D00010]
Raspberry-like superhydrophobic hollow silica particles were prepared through a sacrificial polymer template method. The Stober method was adopted to coat silica onto the surface of cationic polymethylmethacrylate(PMMA) particles by electrostatic interaction. The surface of the PMMA-silica composite particles exhibited raspberry-like morphology with high surface roughness. Hollow silica particles were then obtained by calcination to selectively remove the PMMA core. Subsequent modification with nonafluorohexyltriethoxysilane (NFH-silane) conferred superhydrophobicity on the hollow silica particles. The surface property of this particles were investigated by measuring their water contact angle, and the results showed that such perfluorinated raspberry-like hollow particles had unique superhydrophobic. (C) 2010 Elsevier B.V. All rights reserved.
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