Paper Title:
Effect of Coagulation Bath Concentration on the Structure and Properties of Polyacrylonitrile as-Spun Fibers during Wet-Spinning
  Abstract

The effect of coagulation bath concentration on the structure and properties of as-spun fibers was systematically analyzed by means of X-ray diffraction, electron microprobe analysis, and the measurement of boiling-water shrinkage, porosity, and mechanical properties analysis, etc. It showed that with the increase of the coagulation bath concentration, the degree of spin orientation and the crystallinity both increased, the microstructure became compact and homogeneous, and the cross section of as-spun fibers tended to be circular. As a result, the breaking tenacity of as-spun fibers and resultant precursors both increased. Adopting the optimizing coagulation bath technique parameters: DMSO/H2O system, coagulation bath temperature 60°C, coagulation bath concentration 65%, and the minus stretch ratio –30%, the precursors and carbon fibers with high performance were prepared.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
Environmental Catalysis and Environmental Friendly Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
1832-1836
DOI
10.4028/www.scientific.net/AMR.287-290.1832
Citation
B. H. Ji, "Effect of Coagulation Bath Concentration on the Structure and Properties of Polyacrylonitrile as-Spun Fibers during Wet-Spinning", Advanced Materials Research, Vols. 287-290, pp. 1832-1836, 2011
Online since
July 2011
Authors
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Price
$32.00
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