Capillary tube wetting induced by particles: towards armoured bubbles tailoring.
Soft Matter
; 10(47): 9403-12, 2014 Dec 21.
Article
en En
| MEDLINE
| ID: mdl-25271805
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.
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Colección:
01-internacional
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MEDLINE
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En
Revista:
Soft Matter
Año:
2014
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Article