Startseite High-speed Melt Spinning of Polyethylene terephthalate with Periodic Oscillation of Take-up Velocity
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High-speed Melt Spinning of Polyethylene terephthalate with Periodic Oscillation of Take-up Velocity

  • W. Takarada , K. Kazama , H. Ito und T. Kikutani
Veröffentlicht/Copyright: 2. Mai 2013
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International Polymer Processing
Aus der Zeitschrift International Polymer Processing Band 19 Heft 4

Abstract

To investigate the non-steady-state melt spinning behavior, take-up velocity was varied periodically in the high-speed melt spinning process of polyethylene terephthalate and the time-course changes of velocity and diameter of the spin-line were measured simultaneously. A numerical simulation program for the non-steady-state melt spinning process was also developed. In the range of relatively low take-up velocities, experimental results and results of numerical simulation of the non-steady-state melt spinning process showed a fair agreement, in that the amplitude for the variation of the reciprocal of the cross-sectional area and that for the variation of velocity of the spin-line had a linear relation. An increase in the frequency of velocity oscillation led to a less significant variation in the thickness of as-spun fibers. On the other hand, there was a phase shift between the oscillation of take-up velocity and that of the reciprocal of cross-sectional area of the spin-line at the point of take-up. When take-up velocity was increased, starting of the orientation-induced crystallization along with the occurrence of neck-like deformation caused some characteristic behaviors such as significant increases in the amplitudes of velocity and diameter fluctuations at a certain region in the spin-line. Such behaviors could be reproduced in the numerical calculation by incorporating the stress dependent change of solidification temperature. It was also revealed that the orientation-induced crystallization has the effect of stabilizing the spinning system.

∗ Mail address: T. Kikutani, Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan E-mail:

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Received: 2004-8-26
Accepted: 2004-10-14
Published Online: 2013-05-02
Published in Print: 2004-12-01

© 2004, Carl Hanser Verlag, Munich

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Polymer Processing Society at 20
  5. Mixing and Screw Extrusion
  6. Index for Simultaneous Dispersive and Distributive Mixing Characterization in Processing Equipment
  7. Determination of the Residence Time Distribution in Twin Screw Extruders via Free Radical Modification of PE
  8. On-line Visualization of PS/PP Melting Mechanisms in a Co-rotating Twin Screw Extruder
  9. Die Extrusion
  10. Influence of Filler Particle Geometry on Die Swell
  11. Reactive Processing
  12. Side Chain Extension of Maleated Polypropylene with Diamine
  13. Reactive Batch Mixing for Improved Silica-Silane Coupling
  14. Studies on NBR-ZDMA-OMMT Nanocomposites Prepared by Reactive Mixing Intercalation Method
  15. Fiber and Film
  16. High-speed Melt Spinning of Polyethylene terephthalate with Periodic Oscillation of Take-up Velocity
  17. A Constitutive Analysis of Extensional Flow of EVA Nanocomposites
  18. Laser Sintering
  19. Laser Sintering of High Temperature Resistant Polymers with Carbon Black Additives
  20. Molding
  21. Flow Visualization of Filling with Aid of Colored Billets During Impact Micro-Injection Molding
  22. Modelling of Cyclic 3-Dimensional Heat Transfer in Injection Moulding
  23. PPS News
  24. PPS News
https://doi.org/10.3139/217.1849

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Polymer Processing Society at 20
  5. Mixing and Screw Extrusion
  6. Index for Simultaneous Dispersive and Distributive Mixing Characterization in Processing Equipment
  7. Determination of the Residence Time Distribution in Twin Screw Extruders via Free Radical Modification of PE
  8. On-line Visualization of PS/PP Melting Mechanisms in a Co-rotating Twin Screw Extruder
  9. Die Extrusion
  10. Influence of Filler Particle Geometry on Die Swell
  11. Reactive Processing
  12. Side Chain Extension of Maleated Polypropylene with Diamine
  13. Reactive Batch Mixing for Improved Silica-Silane Coupling
  14. Studies on NBR-ZDMA-OMMT Nanocomposites Prepared by Reactive Mixing Intercalation Method
  15. Fiber and Film
  16. High-speed Melt Spinning of Polyethylene terephthalate with Periodic Oscillation of Take-up Velocity
  17. A Constitutive Analysis of Extensional Flow of EVA Nanocomposites
  18. Laser Sintering
  19. Laser Sintering of High Temperature Resistant Polymers with Carbon Black Additives
  20. Molding
  21. Flow Visualization of Filling with Aid of Colored Billets During Impact Micro-Injection Molding
  22. Modelling of Cyclic 3-Dimensional Heat Transfer in Injection Moulding
  23. PPS News
  24. PPS News
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