Dynamic response studies on aggregation and breakage dynamics of colloidal dispersions in stirred tanks

M. Soos, A. S. Moussa, L. Ehrl, J. Sefcik, H. Wu, M. Morbidelli

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Abstract

Aggregation and breakage of aggregates of fully destabilized polystyrene latex particles in turbulent flow was studied experimentally in both batch and continuous stirred tanks using small-angle static light scattering. It was found that the steady-state values of the root-mean-square radius of gyration are fully reversible upon changes of stirring speed as well as solid volume fraction. Steady-state values of the root-mean-square radius of gyration were decreasing with decreasing solid volume fraction as well as with increasing stirring speed. Moreover, it was found that the steady-state structure and shape of the aggregates is not influenced by the applied stirring speed.
Original languageEnglish
Pages (from-to)605-610
Number of pages5
JournalJournal of Dispersion Science and Technology
Volume29
Issue number4
DOIs
Publication statusPublished - Apr 2008

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Keywords

  • response studies
  • breakage dynamics
  • colloidal dispersions
  • stirred tanks
  • chemical engineering

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