Tuesday, October 23, 2012

1210.5696 (Anne-Laure Fameau et al.)

Switching Reversibly between Ultrastable and Unstable Foams    [PDF]

Anne-Laure Fameau, Arnaud Saint-Jalmes, Fabrice Cousin, Bérénice Houinsou Houssou, François Boué, Bruno Novales, Laurence Navailles, Frédéric Nallet, Cédric Gaillard, Jean-Paul Douliez.
Ultrastable foams with an optimal foamability have been obtained using hydroxyl fatty acids tubes. The stabilization results from the adsorption of monomers at the air-water interface preventing coalescence and coarsening and from the presence of tubes in the Plateau borders limiting the drainage. Upon heating, tubes transit to micelles, which induces foam destabilization. Such foams are thus the first to have a temperature tunable stability.
View original: http://arxiv.org/abs/1210.5696

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