Dynamics of thinning of foam films stabilized by n-dodecyl-beta-maltoside

Langmuir : the ACS Journal of Surfaces and Colloids
Silke StöckleRumen Krastev

Abstract

We studied the process of thinning of thin liquid films stabilized with the nonionic surfactant n-dodecyl-beta-maltoside (beta-C(12)G(2)) with primary interest in interfacial diffusion processes during the thinning process dependent on surfactant concentration. The surfactant concentration in the film forming solutions was varied from 0.01 to 1.0 mM through the critical micellar concentration of 0.16 mM at constant electrolyte (NaCl) concentration, nominally 0.2 M. This assures the formation of Newton black films at the end of the thinning process. The velocity of thinning was analyzed combining previously developed theoretical approaches. From the model, which accounts for diffusion processes in the bulk of the film and in the interfaces, an analytical function was derived and fitted numerically to the experimental data. Quantitative information about the mobility of the surfactant molecules at the film surfaces could be obtained. We find that above a surfactant concentration of 0.12 mM (beta-C(12)G(2)) the film surfaces behave as immobile and nondeformable which decelerates the thinning process. This follows the predictions for Reynolds flow of liquid between two nondeformable disks. Moreover, we could apply the theory on fre...Continue Reading

References

Dec 1, 1983·Proceedings of the National Academy of Sciences of the United States of America·R Peters, K Beck
Jul 1, 1997·Journal of Colloid and Interface Science·L ZhangC Maltesh
Sep 13, 2003·Advances in Colloid and Interface Science·J E CoonsT Tran-Cong
Nov 13, 2003·Physical Review Letters·Thomas Becker, Frieder Mugele
Jul 14, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·R M MuruganathanR V Klitzing
Feb 7, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Cosima StubenrauchDotchi Exerowa
Oct 2, 2007·Advances in Colloid and Interface Science·R FarajzadehPacelli L J Zitha
Oct 28, 2008·The Journal of Physical Chemistry. B·Cosima Stubenrauch, Reinhard Miller

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Citations

Mar 20, 2014·Advances in Colloid and Interface Science·José Luis Toca-HerreraRumen Krastev
Aug 28, 2012·Advances in Colloid and Interface Science·R FarajzadehW R Rossen
Jan 15, 2016·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Michael Winkler, Markus Abel
Mar 19, 2013·Physical Review Letters·M WinklerM Abel

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