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Surfactants in Foam Stability: A Phase-Field Model

TitleSurfactants in Foam Stability: A Phase-Field Model
Publication TypeJournal Article
Year of Publication2007
AuthorsFonseca, I, Morini, M, Slastikov, V
JournalArch. Rational Mech. Anal. 183 (2007) 411-456

The role of surfactants in stabilizing the formation of bubbles in foams is studied using a phase-field model. The analysis is centered on a van der Walls-Cahn-Hilliard-type energy with an added term accounting for the interplay between the presence of a surfactant density and the creation of interfaces. In particular, it is concluded that the surfactant segregates to the interfaces, and that the prescriptionof the distribution of surfactant will dictate the locus of interfaces, what is in agreement with experimentation.


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