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Transparent superhydrophobic PTFE films via one-step aerosol assisted chemical vapor deposition

Zhuang, A; Liao, R; Dixon, SC; Lu, Y; Sathasivam, S; Parkin, IP; Carmalt, CJ; (2017) Transparent superhydrophobic PTFE films via one-step aerosol assisted chemical vapor deposition. RSC Advances , 7 (47) pp. 29275-29283. 10.1039/c7ra04116k. Green open access

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Abstract

In this study, hierarchical micro/nano-structured transparent superhydrophobic polytetrafluoroethylene (PTFE) films showing a water contact angle (CA) of 168°, a water sliding angle (SA) <1° and transmittance to visible light >90% were prepared on glass substrates via aerosol-assisted chemical vapor deposition (AACVD). Scanning electron microscopy showed the morphology to be rough, composed of both micro and nano sized protrusions. Mechanical testing showed that after impingement from 800 drops of 15 μL water (height = 1 m) or 10 g of sand grains (height = 65 cm), the CA of the transparent PTFE surface was still >150°, still demonstrating excellent superhydrophobicity. The films also showed self-cleaning and anti-corrosion properties. This one-step fabrication is a facile way of producing various kinds of transparent superhydrophobic surfaces.

Type: Article
Title: Transparent superhydrophobic PTFE films via one-step aerosol assisted chemical vapor deposition
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/c7ra04116k
Publisher version: https://doi.org/10.1039/c7ra04116k
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, Chemistry, CORROSION-RESISTANCE PROPERTIES, PHOTOCATALYTIC ACTIVITY, SURFACES, FABRICATION, COATINGS, NANOPARTICLES, ALLOY, UV, WETTABILITY, MEMBRANES
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery-pp.ucl.ac.uk/id/eprint/1561721
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