Spreading of surfactant solutions over thin aqueous layers at low concentrations: Influence of solubility.
作者： K.S. Lee , V.M. Starov
DOI: 10.1016/J.JCIS.2008.10.031
关键词: Analytical chemistry 、 Front (oceanography) 、 Radius 、 Time evolution 、 Pulmonary surfactant 、 Chemistry 、 Volume concentration 、 Mineralogy 、 Aqueous solution 、 Solubility 、 Marangoni effect
摘要: A small droplet of aqueous surfactant solution at concentration below CMC was deposited on a thin water layer. moving circular wave in the centre formed. The time evolution radius monitored. Two surfactants different solubility were used. It shown that front (i) proceeds two stages: fast first stage and slower second stage; (ii) motion substantially depends solubility. We suggest qualitative explanation phenomenon, which reasonably agrees with our experimental observations.
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