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Flow Characteristics of Screws and Special Mixing Enhancers in a Co-rotating Twin Screw Extruder

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Published/Copyright: June 5, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 17 Issue 1

Abstract

The flow behavior of a Newtonian fluid through special mixing enhancers in a modular intermeshing co-rotating twin screw extruder has been examined. The mixing enhancers are slotted screws and gear mixing elements. Particular attention has been directed to drag and pressure flow characteristics and residence time distribution in such devices. The data obtained are useful for guidance in the selection of appropriate mixing elements and validation of flow simulation models for twin screw extruders.

* Mail address: D. B. Todd, Polymer Processing Institute, New Jersey Institute of Technology, GITC Bldg. 3901 Newark, N. J. 07102, USA
Received: 2002-3-13
Accepted: 2001-1-22
Published Online: 2013-06-05
Published in Print: 2002-03-01

© 2002, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Editorial
  2. Twelfth of a Series: Father of Synthetic Fiber Industry Wallace Hume Carothers
  3. Special Paper
  4. The Matching of Experimental Polymer Processing Flows to Viscoelastic Numerical Simulation
  5. Single and Twin Screw Extrusion
  6. Polymer Pellet Flow out of the Hopper into the First Section of a Single Screw
  7. Estimation of Residence Time Distribution in two Elements of a Ko-Kneader
  8. Flow Characteristics of Screws and Special Mixing Enhancers in a Co-rotating Twin Screw Extruder
  9. Reactive Extrusion
  10. Bulk Polymerization of ε-Caprolactone in an Internal Mixer and in a Twin Screw Extruder
  11. Die Extrusion
  12. Flow Instabilities of Linear PE in Capillary Dies
  13. In-line Ultrasonic Monitoring of Filler Dispersion during Extrusion
  14. Fibers and Film
  15. Birefringence and Mechanical Property Development in Melt Spinning Cyclopolyolefin Filaments
  16. Injection Molding
  17. An Empirical Study of the Surface Blush in Gas-Assisted Injection Molded Parts
  18. Use of the Fast-cool pVT Data for Shrinkage Analysis in Injection Molding
  19. Composite Processing
  20. Impregnation Behaviors in Composite Processing
https://doi.org/10.3139/217.1678

Articles in the same Issue

  1. Editorial
  2. Twelfth of a Series: Father of Synthetic Fiber Industry Wallace Hume Carothers
  3. Special Paper
  4. The Matching of Experimental Polymer Processing Flows to Viscoelastic Numerical Simulation
  5. Single and Twin Screw Extrusion
  6. Polymer Pellet Flow out of the Hopper into the First Section of a Single Screw
  7. Estimation of Residence Time Distribution in two Elements of a Ko-Kneader
  8. Flow Characteristics of Screws and Special Mixing Enhancers in a Co-rotating Twin Screw Extruder
  9. Reactive Extrusion
  10. Bulk Polymerization of ε-Caprolactone in an Internal Mixer and in a Twin Screw Extruder
  11. Die Extrusion
  12. Flow Instabilities of Linear PE in Capillary Dies
  13. In-line Ultrasonic Monitoring of Filler Dispersion during Extrusion
  14. Fibers and Film
  15. Birefringence and Mechanical Property Development in Melt Spinning Cyclopolyolefin Filaments
  16. Injection Molding
  17. An Empirical Study of the Surface Blush in Gas-Assisted Injection Molded Parts
  18. Use of the Fast-cool pVT Data for Shrinkage Analysis in Injection Molding
  19. Composite Processing
  20. Impregnation Behaviors in Composite Processing
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