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The rheological properties of dispersions of particles of uncoated anatase in ethylene glycol have been determined. In general, the samples show classical shear thinning behaviour, but with shear thickening occurring at high stresses. The variation of viscosity with particle volume fraction, pH, water content and the addition of poly(acrylic acid) has been studied. Uncoated anatase was found to exist in dispersion in the form of aggregates. Packing within the aggregates was observed to be 0.6, through adaptation of the Krieger-Dougherty equation and application of viscosity data. (C) 2002 Elsevier Science B.V. All rights reserved.
Author(s): Chadwick MD, Goodwin JW, Vincent B, Lawson EJ, Mills PDA
Publication type: Article
Publication status: Published
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN (print): 0927-7757
ISSN (electronic): 1873-4359
Publisher: Elsevier BV
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