高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (11): 2117.

• 研究论文 • 上一篇    下一篇

双子表面活性剂Dynol-604溶液的动态表面张力研究

李干佐1, 陈文君1, 顾强1, 李英1, 葛尚正2   

  1. 1. 山东大学胶体与界面化学教育部重点实验室, 济南250100;
    2. 菏泽教育学院生化系, 菏泽274000
  • 收稿日期:2001-08-16 出版日期:2002-11-24 发布日期:2002-11-24
  • 通讯作者: 李干佐(1938年出生),男,教授,博士生导师,从事表面活性剂缔合结构方面的研究.E-mail:coliw@sdu.edu.cn E-mail:coliw@sdu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:29903006,29973023);西南石油学院国家油气地质和开发重点实验室资助

Studies on the Dynamic Surface Tension of Dynol-604

LI Gan-Zuo1, CHEN Wen-Jun1, GU Qiang1, LI Ying1, GE Shang-Zheng2   

  1. 1. Key Lab for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, China;
    2. Department of Biology and Chemistry, Heze Educational College, Heze 274000, China
  • Received:2001-08-16 Online:2002-11-24 Published:2002-11-24

摘要: 通过测定双子表面活性剂Dynol-604的动态表面张力(DST),研究了温度和浓度等对其DST的影响,详细表征了DST随时间的变化过程,计算了动态表面张力的各种参数(ti,t*,tm,R1/2).结果表明,其表面张力降低迅速,γm值也很低.探讨了上述参数的物理意义和变化规律.

关键词: Dynol-604, 动态表面张力, 温度, 浓度

Abstract: The dynamic surface tension(DST) of Dynol-604 was measured by using the maximum bubble pressure method. At first the curves of DST with lgt were obtained, then the parameters(ti, t*, tm, γm) were obtained from the curves above and R1/2 can be calculated out. The effects of the concentration of Dynol-604 and temperature on the dynamic surface tension of Dynol-604 have been investigated. The results showed that the dynamic surface activity and adsorption energy of Dynol-604 increased with the increase of temperature and their concentration, and the diffusion energy decreased with the increasing of temperature and Dynol-604 concentration. In a word, the transient and equilibrium surface activities of Dynol-604 are very high.

Key words: Dynol-604, Dynamic surface tension, Temperature, Concentration

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