高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (2): 287.

• 研究简报 • 上一篇    下一篇

含无机盐和尿素的直链烷基苯磺酸钠浓溶液的粘度性质

王镜和   

  1. 汕头大学化学系, 汕头 515063
  • 收稿日期:1994-02-01 修回日期:1994-05-06 出版日期:1995-02-24 发布日期:1995-02-24
  • 通讯作者: 王镜和,男,56岁,教授.
  • 作者简介:王镜和,男,56岁,教授.

Viscosity Behavior of Sodium Linear Alkyl Benzenesulfonate Solution with High Concentration Containing Inorganic Salts and Urea

WANG Jing-He   

  1. Department of Chemistry, Shantou University, Shantou, 515063
  • Received:1994-02-01 Revised:1994-05-06 Online:1995-02-24 Published:1995-02-24

关键词: 无机盐, 尿素, 直链烷基苯磺酸钠, 粘度性质

Abstract: The thickening efficiency of inorganic salt is remarkable and has a maximum viscosity value for concentrated sodium straight-chain alkyl benzenesulfonate(SLABS) solution.The maximum viscosity values which various salts can reach are markedly different.The interaction between salt and micelle solution is mainly the electrostatic effects.The thickening ability of salt is limited by the activity product between the hydrated individual ion(of surfactant) and the metal ion of salt.Urea diminishes markedly the viscosity values of concentrated SLABS solutions.When using(1/2) Na2SO4as a thickening agent,the higher the concentrations of urea are,the lower the maximum viscosity values are and the higher the concentrations of salt corresponding to the values.These are interpreted in term of forming the individual of partial urea adduct between urea and the hydrated individual,and diminishing SLABS actual concentration of the equilibria between the hydrated individual and micelle.

Key words: Inorganic salt, Urea, Sodium straight-chain alkyl benzenesulfonate, Viscosity behavior

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