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Modelling Induced Tension in a Growing Catalyst/Polyolefin Particle: A Multi‐Scale Approach for Simplified Morphology Modelling
Author(s) -
Di Martino Audrey,
Weickert Günter,
Sidoroff François,
McKenna Timothy F. L.
Publication year - 2007
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.200600036
Subject(s) - polyolefin , particle (ecology) , scale (ratio) , sort , materials science , morphology (biology) , mechanics , flow (mathematics) , statistical physics , computer science , biological system , polymer science , nanotechnology , physics , geology , biology , paleontology , oceanography , layer (electronics) , quantum mechanics , information retrieval
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.