Please use this identifier to cite or link to this item: https://doi.org/10.1021/la902243q
Title: Influence of surfactants on the force between two bubbles
Authors: Manor, O.
Chan, D.Y.C. 
Issue Date: 19-Jan-2010
Citation: Manor, O., Chan, D.Y.C. (2010-01-19). Influence of surfactants on the force between two bubbles. Langmuir 26 (2) : 655-662. ScholarBank@NUS Repository. https://doi.org/10.1021/la902243q
Abstract: The retardation of the interfacial velocity due to the presence of surface-active species is a key feature that determines the magnitude of the dynamic interaction force between colliding bubbles. Here we derive simple measures to quantify the influence of a surface-active species during a head-on collision between bubbles to be used as guidelines in the design and analysis of emulsion stability and related experiments. These measures are derived from a theoretical model that was found to be consistent with experiment and are shown to characterize the interfacial dynamics without the need to use numerical analysis. It is shown that a surface mobility may change with the geometry of the film between the bubbles for a specific amount of a surface-active species. However, small amounts of surface-active species are sufficient to immobilize the interfaces under most physical conditions as found in earlier studies. © 2009 American Chemical Society.
Source Title: Langmuir
URI: http://scholarbank.nus.edu.sg/handle/10635/126630
ISSN: 07437463
DOI: 10.1021/la902243q
Appears in Collections:Staff Publications

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