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Utilizing Processing Parameters for Evaluating Polymer Viscosity during Plastication in Injection Molding

  • R. Dubay , D. Zhang and J. M. Hernandez
Published/Copyright: April 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 24 Issue 3

Abstract

This paper investigates the viscosity behavior of melt polymer during the plastication stage in an injection molding machine (IMM). The objective of this paper is to develop theoretical viscosity-based models for evaluating and predicting the bulk viscosity of the melt polymer near the tip of the screw during the plastication stage. The uniqueness of these models is that they include the effects of material properties and machine processing parameters, such as screw rotational speed, hydraulic back pressure, barrel pressure drop, melt pressure and melt temperature. Several open loop tests were conducted on an industrial IMM in order to quantify process parameter effects on the plastication cycle. The derived model was used to predict bulk viscosity using the open loop tests data. The viscosity-based models in this work will be used for developing future optimal controllers for controlling the polymer viscosity during the plastication stage of the injection molding cycle.

∗ Mail address: Rickey Dubay, Advanced Plastics Manufacturing Laboratory, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick, Canada E3B 5A3. E-mail:

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Received: 2009-02-02
Accepted: 2009-04-24
Published Online: 2013-04-06
Published in Print: 2009-07-01

© 2009, Carl Hanser Verlag, Munich

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  13. Micro Replication by Injection-Compression Molding
  14. Utilizing Processing Parameters for Evaluating Polymer Viscosity during Plastication in Injection Molding
  15. PPS-News
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https://doi.org/10.3139/217.2267

Articles in the same Issue

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Investigation of the Thickening Efficiency of HEUR on the Behavior of Two Different Latex Types
  5. Optimization of the Thickness of PET Bottles during Stretch Blow Molding by Using a Mesh-free (Numerical) Method
  6. An Experimental Setup to Measure the Transient Temperature Profiles in Water Assisted Injection Molding
  7. Experimental Investigation and Flow Modeling of Slippage Induced by Additives in Polyolefins in a Modular Co-rotating Twin Screw Extruder
  8. In-mold Melt Front Rate Control Using a Capacitive Transducer in Injection Molding
  9. Structural and Rheological Properties as a Function of Mixing Energy for Polymer/Layered Silicate Nanocomposites
  10. Study on Kneading and Molding of PP/TiO2 Nanocomposite
  11. Sustainable Biocomposites from Rice Flour and Sisal Fiber: Effect of Fiber Loading, Length and Alkali Treatment
  12. On-line Measurement Studies on Orientation Development and Characteristic Short-Period Diameter Fluctuation in High Speed In-line Drawing of Poly(ethylene terephthalate) Fiber
  13. Micro Replication by Injection-Compression Molding
  14. Utilizing Processing Parameters for Evaluating Polymer Viscosity during Plastication in Injection Molding
  15. PPS-News
  16. PPS News
  17. Seikei Kakou Abstracts
  18. Seikei-Kakou Abstracts
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