Abstract
In recent years, the design of highly liquid-repellent surfaces has received great attention. Here, we report a facile method of creating a surface that repels both water and oils; using simple spray-coating, a hierarchically rough ZnO-PDMS composite can be applied to a variety of substrates that serves as a nanostructured surface for further modification. We applied an overcoating of either a fluoropolymer (Teflon AF) or perfluorodecyltrichlorosilane to fabricate low energy surfaces that repel water and oil for a variety of potential uses. The resultant surfaces are superomniphobic, have static contact angles of >140° for droplets of both liquids, and have low sliding angles for both water and oil droplets: <5° for water and <20° for oil.
Original language | English (US) |
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Pages (from-to) | 69243-69250 |
Number of pages | 8 |
Journal | RSC Advances |
Volume | 5 |
Issue number | 85 |
DOIs | |
State | Published - Aug 6 2015 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering