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Relevance of Crystallisation Kinetics in the Simulation of the Injection Molding Process

  • R. Pantani , V. Speranza und G. Titomanlio
Veröffentlicht/Copyright: 6. Juni 2013
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International Polymer Processing
Aus der Zeitschrift International Polymer Processing Band 16 Heft 1

Abstract

Modelling of the injection moulding process is carried out in this work on the basis of Williams and Lord model and its recent extensions to post filling stages. The emphasis is devoted to identifying the role of crystallisation kinetics in the process simulation. Data of pressure histories during injection moulding of an iPP are taken as reference to the analysis. Crystallisation kinetics of the material was described by means of a non-isothermal formulation of Avrami model whose parameters where determined either by accounting for only of calorimetric results or by describing also final density data of thin samples subjected to characterised quenching histories. Predictions of pressure histories are analysed in relation to the crystallisation kinetics adopted. The effect of pressure on crystallisation is also discussed.

* Mail address: R. Pantani, Department of Chemical and Food Engineering, University of Salerno, via Ponte don Melillo, I-84084 Fisciano (Salerno), Italy
Received: 2000-8-11
Accepted: 2000-10-23
Published Online: 2013-06-06
Published in Print: 2001-03-01

© 2001, Carl Hanser Verlag, Munich

Artikel in diesem Heft

  1. Editorial
  2. 10.3139/217.0101
  3. Invited Paper
  4. Polymer Processing Technology in the 21st Century from the Viewpoint of the Japanese Plastics Industry
  5. Screw Extrusion Blend
  6. Polymer Blends in Co-Rotating Twin-Screw Extruders
  7. Reactive Extrusion
  8. Polymerization of ∊-Caprolactone in a Twin Screw Extruder
  9. Fiber and Film
  10. Crystallization Studies of LLDPE during Tubular Blown Film Processing
  11. Numerical Study of Internal Bubble Cooling (IBC) in Film Blowing
  12. Modeling Heat Transfer with Crystallization in Rods and Filaments
  13. Molding
  14. Relevance of Crystallisation Kinetics in the Simulation of the Injection Molding Process
  15. Causes of Cracks in Petaloid Bottom of Carbonated PET Bottle
https://doi.org/10.3139/217.1620

Artikel in diesem Heft

  1. Editorial
  2. 10.3139/217.0101
  3. Invited Paper
  4. Polymer Processing Technology in the 21st Century from the Viewpoint of the Japanese Plastics Industry
  5. Screw Extrusion Blend
  6. Polymer Blends in Co-Rotating Twin-Screw Extruders
  7. Reactive Extrusion
  8. Polymerization of ∊-Caprolactone in a Twin Screw Extruder
  9. Fiber and Film
  10. Crystallization Studies of LLDPE during Tubular Blown Film Processing
  11. Numerical Study of Internal Bubble Cooling (IBC) in Film Blowing
  12. Modeling Heat Transfer with Crystallization in Rods and Filaments
  13. Molding
  14. Relevance of Crystallisation Kinetics in the Simulation of the Injection Molding Process
  15. Causes of Cracks in Petaloid Bottom of Carbonated PET Bottle
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