Modelling Induced Tension in a Growing Catalyst/Polyolefin Particle: A Multi-Scale Approach for Simplified Morphology Modelling

Audrey Di Martino, G. Weickert, Francois Sidoroff, Timothy F. McKenna

    Research output: Contribution to journalArticleAcademic


    A multi-scale modelling approach is proposed as a means of eventually overcoming the limitations of the multigrain and polymer flow models of particle growth. It is demonstrated that there is a need to introduce some sort of macroheterogeneity into the evolution of the stress build-up in the growing macroparticles in order to see a local rupture of the particle structure. Different simulations are proposed and qualitatively compared to previously published experimental results in order to validate the approach.
    Original languageUndefined
    Pages (from-to)338-352
    JournalMacromolecular Reaction Engineering
    Issue number3-5
    Publication statusPublished - 2007


    • particle morphology
    • IR-72235
    • particle growth
    • Olefin polymerization

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