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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (20): 2420-2426. 上一篇    下一篇

研究论文

生物表面活性剂鼠李糖脂及其复配体系界面行为和性质的介观模拟

朱鹏飞1，李英*,1，李全伟1，宋新旺2，曹绪龙2，李振泉2   

  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中石化胜利油田地质科学研究院 东营 257015)
  • 投稿日期:2011-01-22 修回日期:2011-06-09 发布日期:2011-06-23
  • 通讯作者: 李英 E-mail:yingli@sdu.edu.cn
  • 基金资助:

    国家科技重大专项;教育部留学回国人员科研启动基金资助项目;国家自然科学基金资助项目

Mesoscopic Simulation of the Interfacial Behavior of Biosurfactant Rhamnolipids and the Synergistic Systems

Zhu Pengfei1 Li Ying*,1 Li Quanwei1 Song Xinwang2, Cao Xulong2 Li Zhenquan2   

  1. (1 Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100)
    (2 Geological Scientific Research Institute, Shengli Oilfield, Dongying 257015)
  • Received:2011-01-22 Revised:2011-06-09 Published:2011-06-23
  • Contact: Ying Li E-mail:yingli@sdu.edu.cn

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2151

被引次数

32

采用介观模拟耗散颗粒动力学(DPD)方法研究不同结构的鼠李糖脂在油/水界面行为差异和结构对活性的影响, 并探讨了其与不同类型表面活性剂如十二烷基硫酸钠(SDS)、十二烷基苯磺酸钠(SDBS)、脂肪醇聚氧乙烯醚(AEO3)复配时体系的界面性质, 给出不同结构的鼠李糖脂的行为特点及与常用合成表面活性剂在油/水界面的相互作用规律, 以指导实际应用.

关键词: 生物表面活性剂, 鼠李糖脂, 复配增效, 耗散颗粒动力学模拟, 界面密度

The interfacial behavior of rhamnolipids (RL) at the oil/water interface was studied using dissipative particle dynamics (DPD) method. The characteristic of the monorhamnose and dirhamnose rhamnolipids (R1 and R2) and their mixtures with conventional surfactants, such as sodium dodecyl sulfate (SDS), sodium dodecyl benzene sulfonate (SDBS) and fatty alcohol polyoxyethylene ether (AEO3) was studied. The interfacial behavior of R1 and R2 was studied and the effect of synergistic on the interfacial tension, interfacial density and surfactant interfacial stretching ability was discussed. Interfacial behaviors of different rhamnolipids structures as well as the interaction mechanisms of the synergistic systems were given in order to direct practical application.

Key words: biosurfactant, rhamnolipids, synergistic effect, dissipative particle dynamics, interfacial density

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