Microfluidic interfacial tensiometry

被引：88

作者：

Hudson, SD ^{[1
]}

Cabral, JT ^{[1
]}

Goodrum, WJ ^{[1
]}

Beers, KL ^{[1
]}

Amis, EJ ^{[1
]}

机构：

[1] NIST, Div Polymer, Gaithersburg, MD 20899 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 08期

关键词：

D O I：

10.1063/1.2034098

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A microfluidic approach to measure interfacial tension sigma of immiscible fluids rapidly is reported. This method rests upon quantitative real-time analysis of two-phase flow and drop-shape dynamics. Drops of prescribed dimension and spacing are produced, accelerated, and deformed under extensional flow. These measurements compare well with existing published data and demonstrate a wide range of accessible interfacial tension (e.g., from 2.5 to 60 mN/m).

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页数：3

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