Shear yield stress of partially flocculated colloidal suspensions
- 1 March 1998
- journal article
- research article
- Published by Wiley in AIChE Journal
- Vol. 44 (3) , 538-544
- https://doi.org/10.1002/aic.690440305
Abstract
A general expression was derived for the shear yield stress of a flocculated suspension of particles that is able to describe the effect of particle‐size distribution, solid loading, pH, and hence, electrokinetics of the suspension. The model builds on an earlier model by incorporating the effect of the repulsive interaction between particles. Scaling of the data to the maximum yield stress at a given volume fraction provides a means of removing particle‐size‐ and volume‐fraction‐related effects. The scaling process establishes that to a high level of precision, concentrated dispersions act, in interparticle interaction terms, as the sum of two‐body interactions.Keywords
This publication has 20 references indexed in Scilit:
- Yield stress of suspensions loaded with size distributed particlesAIChE Journal, 1997
- Fractal model of consolidation of weakly aggregated colloidal dispersionsPhysical Review E, 1996
- Yield stress measurements with the vaneJournal of Non-Newtonian Fluid Mechanics, 1996
- Control of the rheology of concentrated aqueous colloidal systems by steric and hydrophobic forcesJournal of the Chemical Society, Chemical Communications, 1993
- Rheological evidence of adsorbate-mediated short-range steric forces in concentrated dispersionsJournal of the Chemical Society, Faraday Transactions, 1993
- Measuring the Flow Properties of Yield Stress FluidsAnnual Review of Fluid Mechanics, 1992
- A cell model theory of the shear viscosity of a concentrated suspension of interacting spheres in a non-Newtonian fluidJournal of Non-Newtonian Fluid Mechanics, 1980
- Theory of yield of cohesive powdersPowder Technology, 1975
- Mutual coagulation of colloidal dispersionsTransactions of the Faraday Society, 1966
- Low-Angle X-Ray Diffraction Studies of the Swelling of Montmorillonite and VermiculiteClays and clay minerals (National Conference on Clays and Clay Minerals), 1961