中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (1): 29-32.

• 研究论文 • 上一篇    下一篇

盐对粘土/氢氧化铝镁/甘油胶体性能的影响

侯万国, 李东祥, 孙德军, 韩书华, 张春光   

  1. 山东大学胶体与界面化学研究所 济南 250100
  • 收稿日期:1996-04-18 修回日期:1996-07-23 出版日期:1997-02-10 发布日期:1997-02-10

Effects of Elctrolytes on Colloidal Properties of Montmorillonite/Aluminum Magnesium Hydroxide/Glycerol Suspension

Hou Wanguo, Li Dongxiang, Sun Dejun, Han Shuhua, Zhang Chunguang   

  1. Institute of Colloid and Interface Chemistry, Shandong University, Jinan 250100
  • Received:1996-04-18 Revised:1996-07-23 Published:1997-02-10 Online:1997-02-10

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摘要： 通过电泳淌度、流变参数和中压滤失量的测定,研究了KCl和AlCl3对带永久负电荷的蒙脱土与带永久正电荷的氢氧化铝镁/甘油形成的混合悬浮体胶体性能的影响,并对影响机理进行了深入探讨

关键词: KCl, AlCl3, 蒙脱土, 氢氧化铝镁, 悬浮体, 胶体性质

Abstract: It is shown in this paper that KCl and AlCl3 affect the colloidal properties of the mixed suspension consisting of montmorillonite(Mt)particles(possessing permanent negative charges)and aluminum magnesium hydroxide(possessing permanent positive charges)/glycerol particles by measuring electrophoretic mobilities(U), rheological parameters and middle pressure fluid loss(FL). With increase of KCl concentration, Uin absolute value, apparent viscosity(AV)and Bingham yield point(YP)of the mixed suspension increase first, then decrease, showing a maximum value at KCl content about 10%, and change no longer at KCl content above 4.0%. With increase of AlCl3 concentration, U decreases in absolute value, and AV and YP decrease first and then increase and then decrease again. The FLincreases with the increase of KCl and AlCl3 contents, indicating that aggregation in the mixed suspension is aggravated.

Key words: KCl, AlCl3, montmorillonite, aluminum magnesium hydroxide, suspension, colloidal property

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