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Mechanical properties and superstructure of high‐modulus and high‐strength PET fiber prepared by zone annealing
Author(s) -
Kunugi Toshio,
Suzuki Akihiro,
Hashimoto Minoru
Publication year - 1981
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.1981.070260619
Subject(s) - annealing (glass) , materials science , composite material , crystallite , amorphous solid , modulus , crystallography , metallurgy , chemistry
The relationships between mechanical properties and superstructure of the poly(ethylene terephthalate) fiber prepared by a new annealing method called zone annealing method were investigated. The effectiveness of zone annealing was compared with three other annealing methods, namely, annealing under release, annealing at constant length, and annealing under tension. The very high modulus and strength of the zone‐annealed fiber were directly attributed to the large number of tie molecules connecting the crystallites and to the high orientation of the amorphous region.