Fabrication of robust superhydrophobic surfaces aerosol-assisted CVD and thermo-triggered healing of superhydrophobicity by recovery of roughness structures

Artificial self-healing superhydrophobic surfaces have become a new research hotspot because of their recoverable non-wetting performance and practical perspective. In this paper, a superhydrophobic surface was fabricated by aerosol-assisted layer-by-layer chemical vapor deposition (AA-LbL-CVD) of e...

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Veröffentlicht in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2019-07, Vol.7 (29), p.1764-17612
Hauptverfasser: Guo, Xiao-Jing, Xue, Chao-Hua, Sathasivam, Sanjayan, Page, Kristopher, He, Guanjie, Guo, Jian, Promdet, Premrudee, Heale, Frances L, Carmalt, Claire J, Parkin, Ivan P
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Zusammenfassung:Artificial self-healing superhydrophobic surfaces have become a new research hotspot because of their recoverable non-wetting performance and practical perspective. In this paper, a superhydrophobic surface was fabricated by aerosol-assisted layer-by-layer chemical vapor deposition (AA-LbL-CVD) of epoxy resins and PDMS polymer films. The obtained samples still showed superhydrophobicity even after long-term exposure to different pH solutions and UV light irradiation as well as great mechanical stability against sandpaper abrasion and double-sided tape peeling. Importantly, due to the shape memory effect of the polymer films, the as-prepared samples could recover the previously crushed micro-nano structures upon heat treatment to make the surface superhydrophobic, showing thermo-triggered healing of superhydrophobicity. Robust superhydrophobic surfaces were fabricated via aerosol-assisted CVD of epoxy resins and PDMS polymer films. The as-obtained surfaces showed thermo-triggered healing of the superhydrophobicity by recovery of roughness structures.
ISSN:2050-7488
2050-7496
DOI:10.1039/c9ta03264a