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Crystallization‐controlled limitations of melt spinning
Author(s) -
Ziabicki Andrzej,
Jarecki Leszek
Publication year - 2007
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.26121
Subject(s) - spinning , crystallinity , materials science , melt spinning , crystallization , composite material , amorphous solid , bifurcation , protein filament , viscosity , stress (linguistics) , thermodynamics , crystallography , chemistry , physics , nonlinear system , linguistics , philosophy , quantum mechanics
Abstract A numerical simulation of melt spinning reveals bifurcation of dynamic solutions leading to limited spinning conditions. The bifurcation phenomenon is controlled by stress‐oriented crystallization and crystallinity‐dependent polymer viscosity. Under the conditions of bifurcation, the space of the spinning conditions (take‐up velocity × filament thickness) splits into three regions corresponding to amorphous fibers, partially crystalline fibers, and inaccessible conditions. Major factors affecting the maximum spinning speed and minimum filament thickness for melt‐spun poly(ethylene terephthalate) are analyzed. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 105: 215–223, 2007