Surface shear viscosity of Gibbs and Langmuir monolayers

被引:56
作者
Barentin, C [1 ]
Ybert, C [1 ]
di Meglio, JM [1 ]
Joanny, JF [1 ]
机构
[1] Inst Charles Sadron, CNRS, UPR 022, F-67083 Strasbourg, France
关键词
D O I
10.1017/S0022112099006321
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
In this paper, we present a new two-dimensional viscometer, and the hydrodynamic calculations used to obtain the surface viscosities from the measurements. In order to interpret the experiments, performed with solutions of sodium dodecyl sulfate (SDS) and also with monolayers of insoluble surfactants, we develop various hydrodynamic models of soluble Gibbs monolayers and of incompressible Langmuir monolayers, that describe well the experimental results. In the case of SDS solutions, the calculations allow the determination of the surface shear viscosity, and its value is in good agreement with previous studies.
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页码:331 / 349
页数:19
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