UNIVERSALITY IN FILM STRATIFICATION DUE TO COLLOID CRYSTAL-FORMATION

被引：74

作者：

WASAN, DT ^{[1
]}

NIKOLOV, AD ^{[1
]}

KRALCHEVSKY, PA ^{[1
]}

IVANOV, IB ^{[1
]}

机构：

[1] UNIV SOFIA,FAC CHEM,THERMODYNAM & PHYSICOCHEM HYDRODYNAM LAB,BU-1126 SOFIA,BULGARIA

来源：

COLLOIDS AND SURFACES | 1992年 / 67卷

基金：

美国国家科学基金会;

关键词：

COLLOID CRYSTAL FORMATION; LIQUID FILMS; STRATIFICATION;

D O I：

10.1016/0166-6622(92)80293-B

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Experimental results with different colloidal systems (ionic and non-ionic micelles, swollen micelles, latex suspensions) are presented to demonstrate the universality of the phenomenon termed film stratification (stepwise thinning of liquid films). A general explanation of the phenomenon is proposed which assumes that the stratification is caused by the layer-by-layer expulsion of a colloid crystal-like structure formed by spherical particles (micelles, latex particles, etc.) inside the film. The effect of different factors on the stratification such as surfactant and electrolyte concentrations, temperature, etc. is explained from this viewpoint.

引用

页码：139 / 145

页数：7

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