Liquid Marble-Induced Dewetting

Pritam Kumar Roy, Mark Frenkel, Irina Legchenkova, Shraga Shoval, Bernard P. Binks, Edward Bormashenko

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We explored the wetting regimes inherent to liquid marbles filled with aqueous alcohol placed on water layers of various thicknesses. Very different wetting regimes are observed, depending on the thickness h of the supporting water layer: (i) Marangoni soluto-capillary flow-driven self-propulsion for h ≥ 1.2 mm; (ii) dewetting followed by the retraction of the triple line for 0.63 mm < h < 1.2 mm; and (iii) dewetting that is not followed by the retraction of the triple line for h < 0.63 mm. A semiquantitative model of wetting is suggested. The kinetics of growth of the dewetted area is studied. The dynamics of dewetting demonstrates the Marangoni-inspired growth of holes in the situation when the triple line is surrounded by the so-called precursor film. The estimation of the maximal Marangoni tension is given.

Original languageEnglish
Pages (from-to)9345-9349
Number of pages5
JournalJournal of Physical Chemistry C
Volume124
Issue number17
DOIs
StatePublished - 30 Apr 2020

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