Volume 120, Issue 1 pp. 524-529

One-step fabrication of fluoropolymer transparent films with superhydrophobicity by dry method

Jian-Ming Wang

Jian-Ming Wang

Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China

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Li-Duo Wang

Li-Duo Wang

Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China

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Lin Feng

Corresponding Author

Lin Feng

Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China

Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China===Search for more papers by this author
First published: 19 October 2010
Citations: 24

Abstract

Fluoropolymer transparent thin films were deposited on different substrates by one-step vacuum evaporation method, which exhibit superhydrophobic property with water contact angle (CA) greater than 150°. Polytetrafluoroethylene (PTFE) film with network structure shows high oleophobicity with oil CA of 138°, whereas polytetrafluoroethylene-perfluoropropylvinylethers (PFA) film with particle structure is superoleophilicity with oil CA near 0°. It is believed that different conformation of CF2 groups at the surface lead to this different surface activity. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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