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Numerical and Physical Modeling of Polymer Crystallization

Part II: Isothermal and Non-isothermal Crystallization Kinetics of a Polypropylene in 2 Dimensions – Experiments and Simulation
  • B. Monasse , J. Smirnova , J.-M. Haudin and J.-L. Chenot
Published/Copyright: May 2, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 19 Issue 3

Abstract

Crystallization of thin polypropylene films was performed in isothermal, constant cooling-rate and mixed conditions. The experiments were first analyzed using the classical procedures based on simplified forms (Avrami, Ozawa) of the general Kolmogoroff-Avrami-Evans (KAE) theory. These analyses, which can be applied over an unusually wide transformation range, show that the crystallizations are actually 2 D. Then, a procedure has been established for the determination of the nucleation and growth parameters involved in the theoretical model presented in the first paper of this series. These parameters have been introduced into the model in order to predict the crystallization behavior in isothermal, constant-cooling-rate and mixed-conditions: transformed fraction, number of activated nuclei, final size distribution of semi-crystalline entities. A very good agreement is generally found between predictions and experimental results.

∗ Mail address: B. Monasse, Centre de Mise en Forme des Matériaux, UMR C.N.R.S. n° 7635, Ecole des Mines de Paris, B.P. 207, 06904 Sophia-Antipolis Cedex, France E-mail:

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Received: 2004-5-10
Accepted: 2004-6-15
Published Online: 2013-05-02
Published in Print: 2004-09-01

© 2004, Carl Hanser Verlag, Munich

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  4. Polymer Processing Society Annual Meeting 21
  5. Screw Extrusion
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  14. Studies on Methacrylate-hydroethyl Methacrylate Oil-absorptive Fiber
  15. Film
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  21. Effect of Mold Temperature on Structure and Property Variations of PBT Injection Moldings in the Thickness Direction
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https://doi.org/10.3139/217.1830

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Polymer Processing Society Annual Meeting 21
  5. Screw Extrusion
  6. Parametric Study of the Mixing Efficiency in a Kneading Block Section of a Twin-screw Extruder
  7. Experiments on Characteristic Deformation and Breakup Behaviors of an Immiscible Drop in a Screw Channel Flow
  8. Die Extrusion
  9. Flow Balancing in Extrusion Dies for Thermoplastic Profiles
  10. Fiber
  11. Effects of Sparse Long Chain Branching on the Spinning Stability of LLDPEs
  12. Dry Spinning of Polymer Fibers in Ternary Systems
  13. Dry Spinning of Polymer Fibers in Ternary Systems
  14. Studies on Methacrylate-hydroethyl Methacrylate Oil-absorptive Fiber
  15. Film
  16. Numerical and Physical Modeling of Polymer Crystallization
  17. Numerical and Physical Modeling of Polymer Crystallization
  18. Modeling
  19. Study on Viscoelastic Behavior and Extrusion Blow Molding Processability of PP/PE Blends
  20. Simulation of Thermal Phenomena on the Interface Molten Polymer/Powder Polymer During Rotational Molding
  21. Effect of Mold Temperature on Structure and Property Variations of PBT Injection Moldings in the Thickness Direction
  22. Tensile and Flexural Properties of β-Nucleated Polypropylenes
  23. Predicting the Long-term Creep Behavior of Plastics Using the Short-term Creep Test
  24. PPS News
  25. PPS News
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