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Effects of spinning conditions on morphology and properties of polyethylene terephthalate fibers spun at high speeds

✍ Scribed by Gao-Yuan Chen; John A. Cuculo; Paul A. Tucker

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 724 KB
Volume: 44
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1992.070440310

No coin nor oath required. For personal study only.

✦ Synopsis

Fiber spinning of polyethylene terephthalate (PET) was studied at take-up speeds ranging from 2000 m/min to 7000 m/min under various spinning conditions. Effects of changes in process variables on the molecular orientation, crystallinity, and properties of as-spun PET fibers are reported. Conventional cross-flow quench in high-speed spinning yields fibers with undesirable crimp and asymmetric structure with respect to the fiber axis. Radialflow quench eliminates these problems. Changes in other spinning conditions, such as extrusion temperature, throughput or take-up denier, and molecular weight, may also affect the development of PET fiber structure in the high-speed threadline.

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