A simplified method for predicting the dynamic surface tension of concentrated surfactant solutions

被引：16

作者：

Daniel, RC ^{[1
]}

Berg, JC ^{[1
]}

机构：

[1] Univ Washington, Dept Chem Engn, Seattle, WA 98105 USA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2003年 / 260卷 / 01期

关键词：

dynamic surface tension; micellar solutions; concentrated surfactant solutions; ink-jet printing;

D O I：

10.1016/S0021-9797(02)00148-0

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 simplified method for predicting the dynamic surface tension of concentrated surfactant solutions is proposed. It is implemented using the framework of the Henry's Law analytical solution to the Ward and Tordai equation for diffusion-controlled adsorption, with the necessary parameters being deduced from the measured equilibrium surface tension equation and a value for the surfactant monomer diffusivity. The method is tested by calculating the dynamic surface tension relaxations of aqueous C10E6 and C10E8 solutions over concentration ranges from well below to well above their critical micelle concentrations (cmc). Results are compared with measured relaxations over 0.001-50 s, and semiquantitative agreement is found, with the best results obtained for concentrations near the cmc. The predictive method may prove useful in such applications as the screening of candidate surfactants for inks used in inkjet printing. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：244 / 249

页数：6

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