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The index of dry‐jet wet spinning for polyacrylonitrile precursor fibers
Author(s) -
Wang TaiYuan,
Chang HsiaoChuan,
Chiu YuTsung,
Tsai JiaLin
Publication year - 2015
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.41265
Subject(s) - spinning , polyacrylonitrile , materials science , crystallinity , composite material , ultimate tensile strength , fiber , synthetic fiber , jet (fluid) , polymer chemistry , polymer , thermodynamics , physics
A new spinning index for a PAN precursor fiber is proposed that includes the viscosity of a spinning dope, the thermodynamic affinity, and the draw ratio during the spinning process. Through dry‐jet wet spinning, six types of PAN precursor fibers with different spinning parameters, including solid content, solvent content in a bath, and draw ratio, were fabricated and analyzed with tensile tests, SEM, and XRD. The results show that the spinning index can reflect the mechanical properties of the fibers but is less indicative of crystallinity. Hence, the current spinning index is recommended for use as an indicator for the mechanical properties of PAN precursor fibers. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41265.