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Ultra-Fast Oleophobic-Hydrophilic Switching Surfaces for Anti-Fogging, Self-Cleaning, and Oil-Water Separation

Brown, P.S.; Atkinson, O.; Badyal, J.P.S.

Ultra-Fast Oleophobic-Hydrophilic Switching Surfaces for Anti-Fogging, Self-Cleaning, and Oil-Water Separation Thumbnail


Authors

P.S. Brown

O. Atkinson



Abstract

Smooth copolymer–fluorosurfactant complex film surfaces are found to exhibit fast oleophobic–hydrophilic switching behavior. Equilibration of the high oil contact angle (hexadecane = 80°) and low water contact angle (<10°) values occurs within 10 s of droplet impact. These optically transparent surfaces display excellent antifogging and self-cleaning properties. The magnitude of oleophobic–hydrophilic switching can be further enhanced by the incorporation of surface roughness to an extent that it reaches a sufficiently high level (water contact angle <10° and hexadecane contact angle >110°), which, when combined with the inherent ultrafast switching speed, yields oil–water mixture separation efficiencies exceeding 98%.

Citation

Brown, P., Atkinson, O., & Badyal, J. (2014). Ultra-Fast Oleophobic-Hydrophilic Switching Surfaces for Anti-Fogging, Self-Cleaning, and Oil-Water Separation. ACS Applied Materials and Interfaces, 6(10), 7504-7511. https://doi.org/10.1021/am500882y

Journal Article Type Article
Acceptance Date Apr 14, 2014
Online Publication Date Apr 30, 2014
Publication Date May 28, 2014
Deposit Date Oct 31, 2014
Publicly Available Date Mar 29, 2024
Journal ACS Applied Materials and Interfaces
Print ISSN 1944-8244
Electronic ISSN 1944-8252
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 6
Issue 10
Pages 7504-7511
DOI https://doi.org/10.1021/am500882y
Keywords Oleophobic−hydrophilic, Switching surface, Antifogging, Self-cleaning, Oil−water separation, Copolymer−fluorosurfactant complex.

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Accepted Journal Article (791 Kb)
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Copyright Statement
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/am500882y.




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