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Erschienen in:
01.12.2008 | Fast Track Communication
Fabrication and characterization of superhydrophobic silica nanotrees
Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 3/2008
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Abstract
Superhydrophobic silica nanotrees were obtained by sol–gel method with hybrid silica sol and jelly-like resorcinol formaldehyde resin. Rough surfaces were obtained by removing the organic polymer at high temperature. After the films with rough surface were modified by trimethylchlorosilane (TMCS), the wettability of the film changed from superhydrophilic to superhydrophobic. The surface roughness of the silica nanotrees film is about 20 nm, and it is transparent and superhydrophobic with a water contact angle higher than 150°.