物理化学学报 >> 1986, Vol. 2 >> Issue (02): 103-109.doi: 10.3866/PKU.WHXB19860202

研究论文 上一篇    下一篇

金属皂非水体系的研究
Ⅰ. 一元油酸钴皂有机溶液的流变性质

周祖康*; 梁文平; 李家麟   

  1. 北京大学物理化学研究所
  • 收稿日期:1985-03-11 修回日期:1900-01-01 发布日期:1986-04-15
  • 通讯作者: 周祖康

INVESTIGATIONS OF METALSOAP-NONAQUEOUS SYSTEMS
Ⅰ. RHEOLOGICAL PROPERTIES OF ORGANIC SOLUTIONS OF COBALT MONOOLEATE SOAP

Zhou Zukang*; Liang Wenping; Li Jialin   

  1. Laboratory of Colloid Chemistry, Institute of Physical Chemistry, Peking University
  • Received:1985-03-11 Revised:1900-01-01 Published:1986-04-15
  • Contact: Zhou Zukang

摘要: 本文研究了一元油酸钴皂的苯与庚烷溶液的流变性质。皂溶液粘度随放置时间而增大, 并趋于稳定的平衡值。稀的钴皂溶液已经表现出显著的非牛顿性。钴皂的增稠作用是皂分子因配位结合形成大分子链的结果。添加剂含有与钴原子配位结合强的基团时, 使皂溶液粘度降至与溶剂相近。

Abstract: The rheological properties of benzene and heptane solutions of cobalt monooleate soap have been investigated. The solution viscosity increased up to a steady equi- librium value with aging time. A remarkable non-Newtonian behavior was observed even with dilute soap solutions. The thickening ability of cobalt monosoap in non- polar media may be ascribed to the formation of polymer chains through the coo- rdination bonding between soap molecules. The high solution viscosity decreased to the same level as the solvent alone in the presence of small amounts of additives containing groups with strong coordinating ability with cobalt atom.