The index of dry-jet wet spinning for polyacrylonitrile precursor fibers

Tai Yuan Wang, Hsiao Chuan Chang, Yu Tsung Chiu*, Jia-Lin Tsai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

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.

Original languageEnglish
Article number41265
JournalJournal of Applied Polymer Science
Volume132
Issue number2
DOIs
StatePublished - 1 Jan 2015

Keywords

  • Fibers
  • Phase behavior
  • Viscosity and viscoelasticity

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