Pinch-off in the presence of surface-active polymers

被引：6
|
作者：
Roche, M. [1 ]
Kellay, H. [2 ]
机构：
[1] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA
[2] Univ Bordeaux 1, Lab Ondes & Matiere Aquitaine, CNRS, UMR 5798, F-33405 Talence, France
来源：
EPL | 2011年 / 95卷 / 05期
关键词：
AIR-WATER-INTERFACE; LIQUID-CRYSTALS; VISCOUS-FLUID; BREAKUP; MONOLAYER; VISCOSITY; RHEOLOGY; THREAD; DROP; DEFORMATION;
D O I：
10.1209/0295-5075/95/54003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The rupture of fluid necks in a surrounding liquid in the presence of surface-active polymers shows a variety of changes with respect to the pure-fluid case. The role of the surface rheology due solely to the presence of such agents at the surface is uncovered by studying how the fluid neck radius approaches zero at pinch-off. The thinning dynamics of the neck turn out to be exponential in time. The thinning rate extracted from this dynamics is related to the surface viscosity of the polymer layer coating the interface and estimates of this quantity are presented. Copyright (C) EPLA, 2011
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页数：5
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