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Effect of aggregation on viscosity of colloidal suspension

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journal contribution
posted on 08.11.2010, 15:18 by Nina Kovalchuk, Victor Starov, Richard Holdich
This experimental study of viscosity of colloidal suspensions was performed using monodisperse polystyrene latex with particle diameter of 1.15 μm and a pH dependent negative zeta potential of up to 120 mV in aqueous solutions. The range of electrostatic repulsion between the particles was controlled by varying the concentration of potassium chloride. Suspensions under investigation were either in a stable, coagulated, or gelated, state depending on the salt concentration. Shear thinning behaviour was observed for all the samples studied. The dependence of viscosity on shear rate imposed was found to depend substantially on the salt concentration.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Citation

KOVALCHUK, N., STAROV, V. and HOLDICH, R.G., 2010. Effect of aggregation on viscosity of colloidal suspension. Colloid Journal, 72 (5), pp. 647-752.

Publisher

Spinger Verlag (© Pleiades Publishing)

Version

AM (Accepted Manuscript)

Publication date

2010

Notes

This article was published in the serial, Colloid Journal [© Pleiades Publishing]. The original publication is available at www.springerlink.com and the definitive version can be viewed at: http://dx.doi.org/10.1134/S1061933X10050108

ISSN

1061-933X

Language

en

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Keywords

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