Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (02): 131-135. Previous Articles     Next Articles

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  1. (1山东大学化学与化工学院胶体与界面教育部重点实验室 济南 250100)
    (2胜利油田钻井工艺研究院油化所 东营 257000)
  • 投稿日期:2009-05-08 修回日期:2009-08-16 发布日期:2010-03-17
  • 通讯作者: 李英
  • 基金资助:


Molecular Dynamics Simulation of Foam Films and Analysis of Foam Drainage Mechanism

Hu Xiaoying1 Li Ying*,1 Zhang Hui1 He Xiujuan1 Xue Yuzhi2 Wang Ping2 Yang Jingli2   

  1. (1 Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100)
    (2 Drilling Technology Research Institute, Department of Oilfield chemistry, Shengli Oilfield, Dongying 257000)
  • Received:2009-05-08 Revised:2009-08-16 Published:2010-03-17
  • Contact: Ying Li

Molecular dynamic simulations were executed to study the foam films stabilized by surfactants. According to the analysis of the radial distribution function (RDF) of the water molecules around the heads of surfactants, the state of water molecules in the foam film could be investigated. Electric conductivity method was adopted to determine the drainage process of foam stabilized by different kinds of surfactants. According to the experimental foam drainage curve, combined with molecular dynamics results, drainage mechanism of the foam film and a physical model of the time-dependent liquid volume contained in foam films, as well as the physical meaning of parameters in this model were discussed.

Key words: foam film, drainage mechanism, molecular simulation, surfactant

CLC Number: