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Spreading of surfactant solutions over thin aqueous layers at low concentrations: Influence of solubility
journal contribution
posted on 2017-07-18, 12:49 authored by Khai S. Lee, Victor StarovA 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.
Funding
This research was supported by Engineering and Physical Sciences research Council, UK (Grant EP/D077869).
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
Journal of Colloid and Interface ScienceVolume
329Pages
361 - 365Citation
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.Publisher
© ElsevierVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2009Notes
This paper is in closed accessISSN
0021-9797eISSN
1095-7103Publisher version
Language
- en