Effect of humic acid adsorption on the rheological properties of sodium montmorillonite suspensions
✍ Scribed by Ramos-Tejada, M. M.; de Vicente, J.; Ontiveros, A.; Durán, J. D. G.
- Book ID
- 120054608
- Publisher
- American Institute of Physics
- Year
- 2001
- Tongue
- English
- Weight
- 391 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0148-6055
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
In this article, we describe the rheology of Na montmorillonite suspensions as a function of pH, at constant ionic strength. The observed behavior is discussed quantitatively in terms of the potential energy of interaction between particles, keeping in mind the anisotropic nature of clay particles.
The effect of pH on the rheological behavior of three purified sodium bentonite (HP, GP, and WP) suspensions is studied. Each clay is studied as a function of pH, at a chosen constant concentration. These concentrations correspond to the lower concentrations at which the yield stress can be detected
Because of their particular electric surface properties and crystal structure, most clay minerals possess a very high ion exchange capacity. Furthermore, the surface charge distribution is anisotropic: while faces of the laminar clay particles have a negative, pH-independent charge, edges may be pos