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Title: Spreading of surfactant solutions over thin aqueous layers at low concentrations: Influence of solubility
Authors: Lee, Khai S.
Starov, Victor
Keywords: Surfactant solutions
Marangoni effect
Issue Date: 2009
Publisher: © Elsevier
Citation: LEE, K.S. and STAROV, V., 2009. Spreading of surfactant solutions over thin aqueous layers at low concentrations: Influence of solubility. Journal of Colloid and Interface Science, 329, pp. 361-365.
Abstract: A small droplet of aqueous surfactant solution at concentration below CMC was deposited on a thin water layer. A moving circular wave in the centre was formed. The time evolution of the radius of the wave was monitored. Two surfactants of different solubility were used. It was shown that the time evolution of the moving front (i) proceeds in two stages: a fast first stage and slower second stage; (ii) the time evolution of the front motion substantially depends on the surfactant solubility. We suggest a qualitative explanation of the phenomenon, which reasonably agrees with our experimental observations.
Description: This paper is in closed access
Sponsor: This research was supported by Engineering and Physical Sciences research Council, UK (Grant EP/D077869).
Version: Published
DOI: 10.1016/j.jcis.2008.10.031
URI: https://dspace.lboro.ac.uk/2134/25817
Publisher Link: http://dx.doi.org/10.1016/j.jcis.2008.10.031
ISSN: 0021-9797
Appears in Collections:Closed Access (Chemical Engineering)

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