Microfluidic approach for rapid interfacial tension measurement
Microfluidic approach for rapid interfacial tension measurement
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DOI：
10.1021/la801526n
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发表时间：
2008-10-07
期刊：
影响因子：
3.9
通讯作者：
Luo, G. S.
中科院分区：
文献类型：
--
作者：
Xu, J. H.;Li, S. W.;Luo, G. S.
本文报道了一种快速测量非混相流体界面张力的微流控方法。该方法建立在同轴微流控装置液滴形成动力学定量力平衡分析的基础上。测量了两种不含/含表面活性剂液体的界面张力值。这些测量结果与商用界面张力测定法的测量结果比较好。在同一微流控装置中也可以精确测量水相流体的粘度。几种模型体系的界面张力从1.0到10.0 mN/m，水相粘度从1.0到10.0 mPa。在这项工作中进行了测试。
A novel microfluidic approach to measure interfacial tension of immiscible fluids rapidly is reported. This method rests upon quantitative force balance analysis of drop formation dynamics in a coaxial microfluidic device. The values of interfacial tension for several two liquids without/with surfactants are measured. These measurements compare well with those measured by the commercial interfacial tensiometry. The viscosity of water phase fluid can also be accurately measured in the same microfluidic device. Several model systems with interfacial tension from 1.0 to 10.0 mN/m and water phase viscosity from 1.0 to 10.0 mPa.s are tested in this work.