Erratum: Water-based peeling of thin hydrophobic films (Physical Review Letters (2017) 119 (154502) DOI: 10.1103/PhysRevLett.119.154502)

Sepideh Khodaparast, François Boulogne, Christophe Poulard, Howard A. Stone

Research output: Contribution to journalComment/debatepeer-review

Abstract

Inks of permanent markers and water-proof cosmetics create elastic thin films upon application on a surface. Such adhesive materials are deliberately designed to exhibit water-repellent behavior. Therefore, patterns made up of these inks become resistant to moisture and cannot be cleaned by water after drying. However, we show that sufficiently slow dipping of such elastic films, which are adhered to a substrate, into a bath of pure water allows complete removal of the hydrophobic coatings. Upon dipping, the air-water interface in the bath forms a contact line on the substrate, which exerts a capillary-induced peeling force at the edge of the hydrophobic thin film. We highlight that this capillary peeling process is more effective at lower velocities of the air-liquid interface and lower viscosities. Capillary peeling not only removes such thin films from the substrate but also transfers them flawlessly onto the air-water interface.

Original languageEnglish (US)
Article number269901
JournalPhysical review letters
Volume121
Issue number26
DOIs
StatePublished - Dec 28 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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