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Effect of DMSO/H 2 O coagulation bath on the structure and property of polyacrylonitrile fibers during wet‐spinning
Author(s) -
Dong XingGuang,
Wang ChengGuo,
Bai YuJun,
Cao WeiWei
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.25665
Subject(s) - polyacrylonitrile , spinning , crystallite , coagulation , crystallization , materials science , polymer chemistry , composite material , chemical engineering , morphology (biology) , polymer , psychology , psychiatry , biology , engineering , metallurgy , genetics
The effect of coagulation bath condition on the structure and property of the nascent fibers and polyacrylonitrile fibers during wet‐spinning is studied. The best coagulation condition to produce polyacrylonitrile fibers has been found by examination of EA, XRD, SEM, and so on. The results indicated that when the coagulation bath was DMSO/H 2 O system, the temperature was 60°C, the concentration was 65%, the minus stretch ratio was −10%, fine crystallites and high degree of crystallization in the nascent fibers and polyacrylonitrile fibers could be achieved, and less solvents remained in the nascent fibers with circular cross section morphology. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007