Drainage of foam films in the presence of nonionic micelles
Drainage of foam films in the presence of nonionic micelles
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非离子胶束存在下泡沫膜的排水
DOI：
10.1007/bfb0118245
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发表时间：
1990
影响因子：
9.9
通讯作者：
I. Ivanov
中科院分区：
文献类型：
--
作者：
A. Nikolov;D. Wasan;N. Denkov;P. Kralchevsky;I. Ivanov
实验研究了非离子表面活性剂胶束溶液形成的水平泡沫膜的分层(逐步变薄)。考察了膜面积、温度、油的增溶作用、表面活性剂和电解液浓度对膜性能的影响。这些数据支持胶体晶体分层模型，根据该模型，逐步变薄是由于膜内球形非离子胶束的有序结构的逐层破坏。数据分析表明，控制层化的主要因素是胶束的体积分数。这一事实导致了对观察到的影响的统一解释，无论是使用非离子还是使用阴离子表面活性剂溶液。
The stratification (step-wise thinning) of horizontal foam films formed from micelar solutions of nonionic surfactants is studied experimentally. The effects of film area, temperature, oil solubilization, surfactant and electrolyte concentrations are investigated. The data support the colloid crystal model of stratification, according to which the step-wise thinning is due to a layer-by-layer destruction of an ordered structure of spherical nonionic micelles inside the film. The analysis of the data shows that the main factor governing the stratification is the volume fraction of the micelles. This fact leads to an unified interpretation of the observed effects, both with nonionic and with anionic surfactant solutions.