Determination of interfacial tension between two immiscible polymers with and without surfactants at the interface

被引：4

作者：

Hu, Y. T. ^{[1
]}

机构：

[1] Unilever Res Labs, Trumbull, CT 06611 USA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 319卷 / 01期

关键词：

drop deformation; drop retraction; interfacial tension; surfactants;

D O I：

10.1016/j.jcis.2007.11.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A second-order drop deformation method for inferring interfacial tension between two immiscible polymers is proposed and shown to improve the accuracy of tension estimate appreciably. A small step-strain method, which uses a strong flow (capillary number > 1) and short flow time similar to O(0.1 s), is successfully developed to avoid complications caused by the surfactants for surfactant-laden drops. This method is demonstrated to give good tension estimates for a range of viscosity ratios and surface coverage. (C) 2007 Elsevier Inc. All rights reserved.

引用

收藏

页码：287 / 294

页数：8

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