高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (6): 824.

• 论文 • 上一篇    下一篇

盐类和温度对非离子型表面活性剂溶液粘度的影响

黄志贞1, 陈宗淇1, 薛美玲1, 石彩云2   

  1. 1. 青岛化工学院应用化学系, 青岛, 266042;
    2. 华中理工大学化学系
  • 收稿日期:1991-06-25 出版日期:1992-06-24 发布日期:1992-06-24
  • 通讯作者: 陈宗淇
  • 基金资助:

    国家自然科学基金

Effects of Temperature on the Viscosity of Nonionic Micellar Solution in the Presence of Salts

HUANG Zhi-zhen1, CHEN Zong-qi1, XUE Mei-ling1, SHI Cai-yun2   

  1. 1. Department of Applied Chemistry, Qingdao Institute of ChemicalTechnology, Qingdao, 266042;
    2. Department of Chemistry, Huazhong University of Science and Technology, Wuhan, 430074
  • Received:1991-06-25 Online:1992-06-24 Published:1992-06-24

摘要: 研究在各种盐类存在下,温度对非离子表面活性剂(OP类)溶液粘度的影响,发现相对粘度的对数值与1/T呈线性关系,从直线的斜率可得活化自由能ΔG*。由热力学关系式可计算粘性流体的活化焓ΔH* 和活化熵ΔS*。用所得热力学函数对胶束型态的转化进行了讨论。

关键词: 粘度, 非离子表面活性剂溶液, 热力学函数

Abstract: The effects of temperature on the viscosity of nonionic surfactant, OP, in the presence of the added salts are presented.It is found that the plots of logarithm of the relative viscosity vs 1/T are linear.The activation free energies (△G*) of the viscous flow were obtained from the slopes of these plots.The activation enthalpies (△H*) and entropies (△S*) for the viscous fluid were calculated out and the entropic contribution was found to be negligible.△G* and △H* were highly dependent on the ethylene oxide number and the nature of positive ions.The △G* is interpreted in terms of the energy required to create a hole or an activated transition micellar structure capable of being transformed into smaller spherical mecelles.

Key words: Viscosity, Nonionic surfactant solution, Thermodynamic function

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