高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (3): 457.

• 研究简报 • 上一篇    下一篇

表面活性剂对TiO2水悬浮体稳定及流变性质的影响

陈小斌, 程虎民, 马季铭   

  1. 北京大学物理化学研究所, 北京, 100871
  • 收稿日期:1996-11-28 出版日期:1998-03-24 发布日期:1998-03-24
  • 通讯作者: 程虎民
  • 作者简介:陈小斌,24岁,硕士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29576224)资助课题.

Effect of Surfactants on Stability and Rheological Properties of Highly Concentrated Aqueous Titanium Dioxide Suspensions

CHEN Xiao-Bin, CHENG Hu-Min, MA Ji-Ming   

  1. Institute of Physical Chemistry, Peking University, Beijing, 100871
  • Received:1996-11-28 Online:1998-03-24 Published:1998-03-24

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关键词: TiO2悬浮体, 稳定性, 流变性质

Abstract: The effects of sodium dodecyl sulfate(SDS) and ethoxylated octylphenol(TX100) on the adsorption, stability and rheological properties of aqueous TiO2 suspensions have been studied. It was found that the adsorption isotherm of SDS on TiO2 surface was shown to be the type of "S". With the increasing of SDSconcentration, the ζ potential and stability increase, while the viscosity and yield value decrease at first and then increase. The adsorption amount of nonionic surfactant TX100 is much smaller than that of SDS. No obvious effect was shown on the stability and rheological properties of the TiO2 suspensions.

Key words: TiO2 suspensions, Stability, Rheological property

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