The relation between the permeability of structured dispersions and the viscoelastic properties of the dispersed phase

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Kamphuis, H. and Jongschaap, R.J.J. and Bouter, P. (1984) The relation between the permeability of structured dispersions and the viscoelastic properties of the dispersed phase. Journal of Colloid and Interface Science, 98 (2). pp. 459-466. ISSN 0021-9797

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Abstract:It is shown that not only the average particle size and compression modulus, but also the viscoelastic properties of the network affect the rate of liquid removal out of a concentrated disperse system that is unilaterally compressed. A Maxwell-like constitutive equation is introduced to express these viscoelastic properties. The rate of liquid removal is calculated for a set of values of the elastic modulus and the time constant that appear in the constitutive equation. It is shown that permeability measurements on concentrated fat dispersions can be interpreted in terms of network properties also when the network is viscoelastic, i.e., it is assumed that processes take place inside the network that involve energy dissipation.
Item Type:Article
Copyright:© 1984 Elsevier Science
Link to this item:http://purl.utwente.nl/publications/69299
Official URL:http://dx.doi.org/10.1016/0021-9797(84)90170-X
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