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Polymer Melt Impregnation of Glass Roving

Modelling and Experimental
  • P. J. Bates and X. P. Zou
Published/Copyright: June 3, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 17 Issue 4

Abstract

Much attention has been recently focussed on the melt impregnation of thermoplastic polymers as a consequence of the difficulty involved in driving viscous polymer melt into a tightly packed fiber bundle. This work studies an impregnation process consisting a series of staggered cylindrical pins in a melt pool. A numerical model for evaluating the pressure generation in the wedge region between the roving/pin, the impregnation velocity of the melt through the glass mesh, and the resulting impregnation depth along the wedge is developed using relationships for pressure build-up in foil bearings and Darcy's law. The model results are compared with experimental melt impregnation data. The model adequately predicts the effect of melt impregnation process conditions on impregnation quality.

* Mail address: P. J. Bates, Dept. of Chemistry and Chem. Eng., Royal Military College of Canada, P. O. Box 17000 Station Forces, Kingston, ON, Canada K7K 7B4
Received: 2002-8-5
Accepted: 2002-8-12
Published Online: 2013-06-03
Published in Print: 2002-12-01

© 2002, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Editorial
  2. Structure Development in Polyolefin Processing
  3. Screw Extrusion
  4. A New Style Single Screw Extruder with Improved Plastification and Output Power
  5. Visualisation and Analysis of the Flow along the Kneading Block of a Twin-screw Extruder
  6. Resonant and Invariant Advection in Single-Screw Extrusion
  7. Compounding
  8. PP-based Model Compounds as Tools for the Development of High-impact-ethylene-propylene Copolymers
  9. Die Extrusion
  10. Modelling of the Flow in the Distribution Plate of a Spin Pack
  11. Free-radical Reactions and Thermal Effects in PE during Pipe Extrusion
  12. Calendering
  13. Simultaneous Calculation of Roll Deformation and Polymer Flow in the Calendering Process
  14. Fiber and Film
  15. Investigation of Bubble Instabilities in Film Blowing Process
  16. Injection Molding
  17. Flow Visualization of Filling Process during Micro-Injection Molding
  18. Thermoforming
  19. The Role of Tool/Sheet Contact in Plug-assisted Thermoforming
  20. A Comparison of the Axisymmetric and Planar Elongational Viscosities of PE-LD
  21. Pultrusion
  22. Polymer Melt Impregnation of Glass Roving
  23. Reaction Injection Molding
  24. Operational and Design Study of RIM Machines
https://doi.org/10.3139/217.1705

Articles in the same Issue

  1. Editorial
  2. Structure Development in Polyolefin Processing
  3. Screw Extrusion
  4. A New Style Single Screw Extruder with Improved Plastification and Output Power
  5. Visualisation and Analysis of the Flow along the Kneading Block of a Twin-screw Extruder
  6. Resonant and Invariant Advection in Single-Screw Extrusion
  7. Compounding
  8. PP-based Model Compounds as Tools for the Development of High-impact-ethylene-propylene Copolymers
  9. Die Extrusion
  10. Modelling of the Flow in the Distribution Plate of a Spin Pack
  11. Free-radical Reactions and Thermal Effects in PE during Pipe Extrusion
  12. Calendering
  13. Simultaneous Calculation of Roll Deformation and Polymer Flow in the Calendering Process
  14. Fiber and Film
  15. Investigation of Bubble Instabilities in Film Blowing Process
  16. Injection Molding
  17. Flow Visualization of Filling Process during Micro-Injection Molding
  18. Thermoforming
  19. The Role of Tool/Sheet Contact in Plug-assisted Thermoforming
  20. A Comparison of the Axisymmetric and Planar Elongational Viscosities of PE-LD
  21. Pultrusion
  22. Polymer Melt Impregnation of Glass Roving
  23. Reaction Injection Molding
  24. Operational and Design Study of RIM Machines
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