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Influence of spinning velocity on mechanical and structural behavior of PET/nylon 6 fibers
Author(s) -
Aslan S.,
Laurienzo P.,
Malinconico M.,
Martuscelli E.,
Pota F.,
Bianchi R.,
Di Dino G.,
Giannotta G.
Publication year - 1995
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.1995.070550106
Subject(s) - materials science , spinning , composite material , nylon 6 , rheology , polyethylene terephthalate , melt spinning , polyethylene , shrinkage , polymer
Influence of spinning velocities on the mechanical and structural properties of polyethylene terephthalate (PET)/nylon 6 blend fibers have been reported. Fibers of PET/nylon 6 containing a small percentage of nylon (5% by weight) have been melt‐spun at 3 different spinning velocities (2,900; 3,200; 3,600 m/min). The fibers have been characterized by thermal, morphological, structrual, and mechanical analysis. Various techniques such as SEM, DSC, X‐ray diffraction, hot water shrinkage (HWS), viscosity, and birefringence have been used. SEM analysis revealed that in the blend, nylon 6 is well‐dispersed as spheres in the PET matrix. The blend shows a marked decrease in the melt‐flow index, which in turn leads to a beneficial effect on the rheological properties of the PET without negatively influencing its mechanical characteristics. This finding results in a saving on energetical requirements of the processing, as both temperature and pressure of spinning can be decreased. © 1995 John Wiley & Sons, Inc.