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Issue 47, 2014
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Capillary tube wetting induced by particles: towards armoured bubbles tailoring

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Abstract

In this paper, we report on the strongly modified dynamics of a liquid finger pushed inside a capillary tube, when partially wettable particles are lying on the walls. Particles promote the appearance of new regimes and enable the tailored synthesis of bubbles encapsulated in a monolayer of particles (so-called “armoured bubbles”). This remarkable behavior arises due to the collection of particles at the air–liquid interface, which modify the global energy balance and stabilize the interface. Armoured-bubbles are of primary interest in industrial processes since they display increased stability, interfacial rigidity and can even sustain non-spherical shapes. This work opens perspective for a low cost bubbles-on-demand technology enabling the synthesis of armoured bubbles with specific sizes, shapes and composition.

Graphical abstract: Capillary tube wetting induced by particles: towards armoured bubbles tailoring

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Publication details

The article was received on 25 Jul 2014, accepted on 10 Sep 2014 and first published on 11 Sep 2014


Article type: Paper
DOI: 10.1039/C4SM01648C
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Soft Matter, 2014,10, 9403-9412

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    Capillary tube wetting induced by particles: towards armoured bubbles tailoring

    F. Zoueshtiagh, M. Baudoin and D. Guerrin, Soft Matter, 2014, 10, 9403
    DOI: 10.1039/C4SM01648C

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