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Effects of spinning conditions on morphology and properties of polyethylene terephthalate fibers spun at high speeds
Author(s) -
Chen GaoYuan,
Cuculo John A.,
Tucker Paul A.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070440310
Subject(s) - spinning , polyethylene terephthalate , materials science , crystallinity , composite material , polyethylene , fiber , extrusion , melt spinning , crimp , morphology (biology) , genetics , biology
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. Radial‐flow 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.