Surface charging mechanism for electrolytic soap films

被引：15

作者：

Dean, DS ^{[1
]}

Sentenac, D ^{[1
]}

机构：

[1] CEA SACLAY,SERV PHYS ETAT CONDENSE,F-91191 GIF SUR YVETTE,FRANCE

来源：

EUROPHYSICS LETTERS | 1997年 / 38卷 / 09期

关键词：

D O I：

10.1209/epl/i1997-00298-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss a model to describe the diffuse double layer of films made with ionic soap in the presence of an additional electrolytic species. The mechanism for surface charging is explained geometrically as a consequence of the hydrophobic nature of the soap anion tails. Mie carry out a mean-field analysis of the system, and calculate physical observables, including the electrostatic disjoining pressure isotherm for films and the surface tension of their bulk solutions. We compare the theory with experimental results and obtain good agreement across a wide range of measurements.

引用

页码：645 / 650

页数：6

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