Role of permeation in the linear viscoelastic response of concentrated emulsions

被引：0
|
作者：
Hébraud, P
Lequeux, F
Palierne, JF
机构：
[1] ESPCI, F-75005 Paris, France
[2] Ecole Normale Super Lyon, F-69007 Lyon, France
来源：
LANGMUIR | 2000年 / 16卷 / 22期
关键词：
D O I：
10.1021/la001091g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We have studied the viscoelastic reponse of a concentrated emulsion. We have detected a slow relaxation in uniaxal flow that does not exist in simple shear flow. We demonstrate that the relaxation originates in the permeation of the water through the network of oil droplets, using a two-fluid model. In addition, we have measured directly the high-frequency behavior up to 10 kHz. It exhibits an anomalous relaxation behavior, in accordance with previous light scattering observations.
引用
收藏
页码：8296 / 8299
页数：4
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