高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (12): 1305.

• 论文 • 上一篇    

由表面活性物质溶液的动界面张力外推求平衡界面张力的研究

徐秀坤, 王世容, 吴树森   

  1. 华东化工学院化学系
  • 收稿日期:1987-07-08 出版日期:1988-12-24 发布日期:1988-12-24
  • 通讯作者: 徐秀坤

Study on the Extrapolating the Dynamic Interfacial Tensionifor Solution of Surface Active Substance to Determine the Equilibrium Interfacial Tension

Xu Xiukun, Wang Shirong, Wu Shusen   

  1. Department of Chemistry, East China Institute of Chemical Technology, Shanghai
  • Received:1987-07-08 Online:1988-12-24 Published:1988-12-24

摘要: 表面活性物质溶液的界面张力往往随时间而变,难以测得平衡界面张力J。Kloubek[1]曾应用经验式:1/(δH2Ot)=b/(At1/2)+1/A,以[1/(δH2Ot)]对1/t1/2作图外推求得溶液的平衡表面张力,但所得结果仅与文献值大致相符。本文从理论上分析该经验式的由来,以及产生偏离的原因,并寻求了解决的办法。

关键词: 动界面张力, 动表面张力, 平衡界面张力, 平衡表面张力

Abstract: J.Kloubek used the empirical equation 1/(δH2Ot)=b/(At1/2)+1/A to correlate his experimental data in a 1/(σH2Ot)vs(1/t1/2). It is possible to determine the static surface (interfacial) tension for solution, but the results were approximately in agreement with the literature.The article gives the theoretical derivation of the empirical equation and discusses the cause of deviation. A further investigation leads to use a extrapolating, the static surface tension is better than empirical equation.

Key words: Dynamic interfacial tension, Dynamic surface tension, Equilibrium interfacial tension, Equilibrium surface tension

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