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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received November 7, 2015
Accepted January 17, 2016
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Superhydrophobic, flexible and gas-permeable membrane prepared by a simple one-step vapor deposition

Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
Korean Journal of Chemical Engineering, May 2016, 33(5), 1743-1748(6), 10.1007/s11814-016-0017-6
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Abstract

We demonstrate the fabrication of superhydrophobic, flexible and gas-permeable membranes by a simple one-step process consisting only of thermal evaporation of a fluid polydimethylsiloxane (PDMS) polymer, without the use of any other chemicals such as curing agents or solvents of PDMS. As a substrate for the PDMS coating, a stainless steel mesh approx. 100 μm thick was used, which is flexible and becomes superhydrophobic after PDMS coating, attaining a water contact angle above 160°. The flexible mesh remained gas-permeable upon superhydrophobic coating, since PDMS evenly coated each strand of the metal mesh, and the vacancies between wires remained unclogged upon coating. The mechanical and chemical stability of the superhydrophobic, flexible and gas-permeable membrane is demonstrated herein.

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