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2. Influence of forming conditions on crystallization
2.1 Influence of flow
The flow of molten polymer has a major influence on the development of morphologies in processes. Its intensity is initially expressed in terms of process parameters such as drawing speed and injection rate. However, it is more relevant to translate forming conditions into quantities from continuum mechanics: strain rates, deformations, stresses, and even specific energy received by the material (in J/m 3 ). Among these, shear (shear rate) and elongation (elongation rate) strain rates are widely used, as shear and elongation are the reference flows, both in the laboratory and in processes.
We distinguish between :
processes involving flow followed...
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Influence of forming conditions on crystallization
Orientation phenomena
Bibliography
Software
Rem3D® http://www.transvalor.com/fr/
Autodesk®Simulation Moldflow® http://www.autodesk.fr/products/simulation-moldflow/
Events
The Polymer Processing Society (PPS) organizes two conferences each year: an international conference and a regional conference in a different geographical area from that of the international conference. The three geographical areas concerned are: Asia/Australia, the Americas and Europe/Africa. http://psfebus.allenpress.com/eBusPOPR/
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Learned societies
ESAFORM European Scientific Association for Material Forming http://esaform.utcluj.ro /
GFP French Group for Polymer Studies and Applications http://www.gfp.asso.fr/
PPS Polymer Processing Society...
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