高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (10): 1091.

• 研究论文 • 上一篇    下一篇

全氟辛酸铵与全氟壬酸铵混合物的表面活性

朱(王步)瑶, 余青   

  1. 北京大学物理化学研究所
  • 收稿日期:1989-02-27 出版日期:1990-10-24 发布日期:1990-10-24
  • 通讯作者: 朱(王步)瑶, 邮编: 100871

The Surface Activities of Ammonium Perf luorooctanoate, Ammonium Perfluorononanoate and Their Mixtures

Zhu Buyao, Yu qing   

  1. Institute of Physical Chemistry, Peking University, Beijing
  • Received:1989-02-27 Online:1990-10-24 Published:1990-10-24

摘要: 测定了全氟辛酸铵和全氟壬酸铵及其不同比例混合物的0.1mol/L氯化铵水溶液表面张力曲线。讨论了它们的胶团化作用、吸附作用和降低水表面张力的能力。改进了Ingram-Luckhurst自单一表面活性剂活性张力曲线得到混合溶液表面张力曲线的方法。

关键词: 全氟辛酸铵, 全氟任酸铵, 混合物, 表面活性

Abstract: The surface tension isotherms of ammonium perfluorooctanoate, ammonium perfluo-rononanoate and their mixed aqueous solutions with ammonium chloride (0. 1 mol/L) have been measured by using drop volume method at 25℃. The micellization, adsorption and surface tension reduction in these systems are discussed. Anew method for calculating the whole γ-lgC curves of the ideal solutions of the mixtures was developed and good correspondence between the calculated and experimental results was obtained.

Key words: Ammonium perfluorooctanoate, Ammonium perfluorononanoate, Mixed solution, Surface activity

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