Kinetics of aggregation and gelation in colloidal dispersions

J Sefcik, R Grass, P Sandkuhler, M Morbidelli

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Control of aggregation and gelation of colloidal particles are among important issues in processing of disperse systems. We present an experimentally validated approach to kinetic modelling based on master curves for aggregation and gelation. The master curves depend on basic physicochemical properties of primary particles, which are reflected in terms of the cluster fractal dimension and kernel kinetic exponent. We also analyse interplay between aggregation and diffusion at small length scales in the process of formation of gel domains in imperfectly mixed colloidal dispersions.

Original languageEnglish
Pages (from-to)926-932
Number of pages7
JournalChemical Engineering Research and Design
Volume83
Issue number7
DOIs
Publication statusPublished - Jul 2005

Keywords

  • population balance equation
  • kinetics
  • aggregation
  • gelation
  • colloids

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