物理化学学报 >> 1997, Vol. 13 >> Issue (10): 873-878.doi: 10.3866/PKU.WHXB19971003

研究论文 上一篇    下一篇

界面振荡现象

胡学铮,Vignes-Adler M   

  1. 无锡轻工大学化学工程系,无锡 214036|法国国家科研中心
  • 收稿日期:1997-01-06 修回日期:1997-03-28 发布日期:1997-10-15
  • 通讯作者: 胡学铮

Interfacial Oscillation Phenomenon

Hu Xue-Zheng,Vignes-Adler M   

  1. Department of Chemical Engineering,Wuxi University of Light Industry,Wuxi 214036|Centre National de la Recherche Scientigique,FRANCE
  • Received:1997-01-06 Revised:1997-03-28 Published:1997-10-15
  • Contact: Hu Xue-Zheng

摘要:

表面活性剂十二烷基三甲基溴化铵从水相向硝基乙烷相的迁移导致以界面振荡为特征的界面不稳定现象.基于界面吸附平衡对该现象的成因进行解析,得到了体现溶质界面吸附和扩散迁移的双因素关系式,可对界面振荡运动的成因及有关规律作出解释.

关键词: 界面振荡, Marangoni效应, 界面吸附, 界面流

Abstract:

An interfacial oscillation phenomenon in the system of dodecyltrimethylammonium bromide, water and nitroethane, induced by the solutal Marangoni effect is observed. A simple model based on the equilibrium of the interfacial adsorption is analyzed, in order to give a detail mechanism of this phenomenon. The result shows that the origin of this interfacial oscillation is the appearance of an interfacial flux induced by the solutal Marangoni effect, which is the composite result of the solutal interfacial adsorption and the difference of the solute diffusion in the two phases.

Key words: Interfacial oscillation, Marangoni effect, Adsorption, Interfacial flux