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Flexible and mechanically robust superhydrophobic silicone surfaces with stable Cassie-Baxter state

Zhang, X; Zhu, W; He, G; Zhang, P; Zhang, Z; Parkin, IP; (2016) Flexible and mechanically robust superhydrophobic silicone surfaces with stable Cassie-Baxter state. Journal of Materials Chemistry A , 4 (37) pp. 14180-14186. 10.1039/c6ta06493k. Green open access

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Abstract

Durable non-wetting surfaces require high surface roughness on the nano- or micrometer scale, which is inherently fragile and easily removed by an external force. Elastic materials have potential advantages for constructing superhydrophobic surfaces with abrasion resistance since after friction or force deformation they often rebound to their original structure rather than undergoing degradation. Here we present a large-scale fabrication of free-standing silicone monoliths with a stable Cassie–Baxter state under mechanical stress cycles. The obtained elastic silicone retains excellent mechanical durability with constant super liquid-repellent after high external pressure, knife-scratch, and abrasion cycles with sandpaper. Furthermore the obtained silicone demonstrates high tolerance to continuous contact with extremely corrosive solutions, and also shows self-cleaning properties in air or under oil.

Type: Article
Title: Flexible and mechanically robust superhydrophobic silicone surfaces with stable Cassie-Baxter state
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/c6ta06493k
Publisher version: http://dx.doi.org/10.1039/c6ta06493k
Language: English
Additional information: Copyright © The Royal Society of Chemistry 2016.
Keywords: Science & Technology, Physical Sciences, Technology, Chemistry, Physical, Energy & Fuels, Materials Science, Multidisciplinary, Chemistry, Materials Science, Coatings, Transparent, Nanocomposites, Sponges, Rubber, Films, Water
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 Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1512002
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