Forces Between Suspended Bentonite Particles
Forces Between Suspended Bentonite Particles
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DOI：
10.1346/ccmn.1955.0040128
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发表时间：
1955-02
影响因子：
2.2
通讯作者：
H. Olphen
中科院分区：
文献类型：
--
作者：
H. Olphen
Purified sodium bentonite suspensions in water display rigidity at concentrations as low as about 2 percent. On addition of NaCl the yield stress decreases, but beyond about 5 meq/ liter of NaCl it increases. The same is true for the relative viscosities and the sediment volumes of more dilute suspensions. This is interpreted as a flocculation-deflocculation-floccu-lation sequence. The paradoxical phenomenon of flocculation of the clean suspensions is explained by the concept of positive edge charge of the clay plates, allowing positive edge to negative flat-surface flocculation.
