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Robust self-cleaning surfaces that function when exposed to either air or oil

Lu, Y; (2015) Robust self-cleaning surfaces that function when exposed to either air or oil (N/A,, Trans.). Science , 347 (6226) 1132 - 1135. 10.1126/science.aaa0946. Green open access

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Abstract

Superhydrophobic self-cleaning surfaces are based on the surface micro/nanomorphologies; however, such surfaces are mechanically weak and stop functioning when exposed to oil. We have created an ethanolic suspension of perfluorosilane-coated titanium dioxide nanoparticles that forms a paint that can be sprayed, dipped, or extruded onto both hard and soft materials to create a self-cleaning surface that functions even upon emersion in oil. Commercial adhesives were used to bond the paint to various substrates and promote robustness. These surfaces maintained their water repellency after finger-wipe, knife-scratch, and even 40 abrasion cycles with sandpaper. The formulations developed can be used on clothes, paper, glass, and steel for a myriad of self-cleaning applications.

Type: Article
Title: Robust self-cleaning surfaces that function when exposed to either air or oil
Location: US
Open access status: An open access version is available from UCL Discovery
DOI: 10.1126/science.aaa0946
Publisher version: http://dx.doi.org/10.1126/science.aaa0946
Language: English
Keywords: Robust, Superhydrophobic, Self-cleaning
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.ucl.ac.uk/id/eprint/1461228
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