高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (10): 1601.

• 论文 • 上一篇    下一篇

添加剂对TiO2/水分散体流变性的影响

杨化桂, 韩今依, 古宏晨, 干路平   

  1. 华东理工大学技术化学物理研究所, 上海 200237
  • 收稿日期:1998-11-17 出版日期:1999-10-24 发布日期:1999-10-24
  • 通讯作者: 杨化桂,男,26岁,硕士研究生.
  • 作者简介:杨化桂,男,26岁,硕士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29636010)重点资助课题

Effects of Additives on Rheological Properties of TiO2/Water Dispersions

YANG Hua-Gui, HAN Jin-Yi, GU Hong-Chen, GAN Lu-Ping   

  1. Institute of Technical Chemistry and Physics, East China University of Science and Technology, Shanghai 200237, China
  • Received:1998-11-17 Online:1999-10-24 Published:1999-10-24

摘要: 研究了TiO2生产中有关助剂对其流变性能的影响,得到了TiO2/水分散体的流变性能与三乙醇胺用量之间的关系,并找到了最佳用量.实验发现,六偏磷酸钠为分散剂时,其使用效果有时间依赖性;碳酸铵作絮凝剂时则对分散体的流变性能和形成的絮凝体有影响.

关键词: TiO2/水分散体, 分散剂, 絮凝剂, 流变性

Abstract: The effects of additives [N(CH2CH2OH)3,(NaPO3)n(n=10~20), (NH4)2CO3] on rheological properties of TiO2/water dispersions were studied through measurements of shear viscosity, yield stress and thixotropic loops. The results show that TiO2water dispersions exhibit the best disperse property, low viscosity without yield stress when the mass fraction of N(CH2CH2OH)3 is 0.1%; but (NaPO3)n(n=10~20) beheves the time dependence as dispersant for TiO2water dispersions, as flocculation agent in TiO2industry, the concentration of (NH4)2CO3has effects on the rheological properties of TiO2water dispersions.

Key words: TiO2/water dispersions, Dispersant, Flocculation agent, Rheological properties

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