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Citation: Hou Wanguo, Li Dongxiang, Sun Dejun, Han Shuhua, Zhang Chunguang. Effects of Elctrolytes on Colloidal Properties of Montmorillonite/Aluminum Magnesium Hydroxide/Glycerol Suspension[J]. Chinese Journal of Applied Chemistry, ;1997, 14(1): 29-32. shu

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

1.
Institute of Colloid and Interface Chemistry, Shandong University, Jinan 250100

Received Date: 18 April 1996
Available Online: 23 July 1996

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, U in 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 1.0%, 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 FL increases with the increase of KCl and AlCl₃ contents, indicating that aggregation in the mixed suspension is aggravated.
- KCl,
- AlCl₃,
- montmorillonite,
- aluminum magnesium hydroxide,
- suspension,
- colloidal property
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