Immiscible surfactant droplets on thin liquid films: Spreading dynamics, subphase expulsion and oscillatory instabilities

Article ID	Journal	Published Year	Pages	File Type
10376956	Journal of Colloid and Interface Science	2011	11 Pages	PDF

Abstract

âº Immiscible surfactant droplets on thin liquid ('subphase') films are studied. âº The 'near-field' two-phase flow dynamics are characterized experimentally. âº The 'far-field' fingering instability is preceded by subphase trapping and release. âº Subphase expulsion is accompanied by an oscillatory contact line instability.

Keywords

Surfactant spreading Oscillatory instability Thin liquid films Marangoni stresses Immiscible liquids

Related Topics

Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry

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Immiscible surfactant droplets on thin liquid films: Spreading dynamics, subphase expulsion and oscillatory instabilities

Authors

David K.N. Sinz, Myroslava Hanyak, Anton A. Darhuber,