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Aqueous foams stabilized solely by particles

Stocco, A.; Rio, E.; Binks, B. P.; Langevin, D.


A. Stocco

E. Rio

B. P. Binks

D. Langevin


Foams are dispersions of bubbles in liquids, often water. They are frequently stabilized by surfactant or polymer, but like Pickering emulsions, they can be also stabilized solely by particles. If the particles have a moderate hydrophobicity, the foams can be extremely stable (lifetimes of the order of years). Due to technical preparation difficulties, very few studies can be found in the literature to date. We will discuss the origin of these difficulties. We will also describe experiments using partially hydrophobic fumed silica particles, in which the foam properties were correlated with the properties of spread and adsorbed layers of these particles at the air-water interface. These combined experiments allowed us to define the conditions necessary to stop bubble disproportionation.


Stocco, A., Rio, E., Binks, B. P., & Langevin, D. (2011). Aqueous foams stabilized solely by particles. Soft matter, 7(4), 1260-1267.

Journal Article Type Article
Acceptance Date Dec 15, 2010
Online Publication Date Jan 11, 2011
Publication Date Feb 21, 2011
Print ISSN 1744-683X
Electronic ISSN 1744-6848
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 7
Issue 4
Pages 1260-1267
Keywords Air-water-interface; Silica; Nanoparticles; Fluid interfaces; Emulsions; Bubbles; Hydrophobicity
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