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Brown PS, Atkinson OD, Badyal JP. Ultrafast oleophobic-hydrophilic switching surfaces for antifogging, self-cleaning, and oil-water separation. ACS Appl Mater Interfaces. 2014;6(10):7504-11doi: 10.1021/am500882y.
Brown, P. S., Atkinson, O. D., & Badyal, J. P. (2014). Ultrafast oleophobic-hydrophilic switching surfaces for antifogging, self-cleaning, and oil-water separation. ACS applied materials & interfaces, 6(10), 7504-11. https://doi.org/10.1021/am500882y
Brown, P S, et al. "Ultrafast oleophobic-hydrophilic switching surfaces for antifogging, self-cleaning, and oil-water separation." ACS applied materials & interfaces vol. 6,10 (2014): 7504-11. doi: https://doi.org/10.1021/am500882y
Brown PS, Atkinson OD, Badyal JP. Ultrafast oleophobic-hydrophilic switching surfaces for antifogging, self-cleaning, and oil-water separation. ACS Appl Mater Interfaces. 2014 May 28;6(10):7504-11. doi: 10.1021/am500882y. Epub 2014 Apr 30. PMID: 24786299.
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ACS Appl Mater Interfaces. 2014 May 28;6(10):7504-11. doi: 10.1021/am500882y. Epub 2014 Apr 30.

Ultrafast oleophobic-hydrophilic switching surfaces for antifogging, self-cleaning, and oil-water separation.

ACS applied materials & interfaces

P S Brown, O D L A Atkinson, J P S Badyal

Affiliations

  1. Department of Chemistry Science Laboratories, Durham University , Durham DH1 3LE, United Kingdom.

PMID: 24786299 DOI: 10.1021/am500882y

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%.

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