SOLUTAL MARANGONI EFFECT .1. PURE INTERFACIAL TRANSFER

被引：42

作者：

BEKKI, S

VIGNESADLER, M

NAKACHE, E

ADLER, PM

机构：

[1] LAB AEROTHERM,4TER ROUTE GARDES,F-92190 MEUDON,FRANCE

[2] LAB STRUCT & REACT INTERFACES,F-75005 PARIS,FRANCE

[3] INST SCI MAT & RAYONNEMENT,F-14032 CAEN,FRANCE

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1990年 / 140卷 / 02期

关键词：

D O I：

10.1016/0021-9797(90)90370-4

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：

The motion of a nitroethane lens located at the surface of an aqueous solution of dodecyltrimethylammonium bromide is analyzed. This motion is generated by a solutal Marangoni effect, or soluto-capillary instability, induced by the transfer of the surfactant from one phase to the second one, both solvents being mutually saturated; its quasi-periodic character is demonstrated by a statistical and spectral analysis, and its characteristics, amplitude, and frequency are discussed as a function of the physicochemical conditions. The enhancement of the interfacial transfer by the Marangoni effect is evaluated. It is shown that none of the available models of linear stability analysis can account for the present results. © 1990.

引用

页码：492 / 506

页数：15

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