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Choosing the Impregnants by Thermogravimetric Analysis for Preparing Rayon-Based Carbon Fibers

Authors
  • Zeng, Fanlong1
  • Pan, Ding1, 2
  • Pan, Ning2, 3
  • 1 Dong Hua University, Carbon Fiber Division of the College of Materials, State Key Laboratory for the Modification of Chemical Fiber and Polymer Materials, Shanghai, 200051, PR China , Shanghai
  • 2 Dong Hua University, Center of Soft Fibrous Matters, Shanghai, 200051, PR China , Shanghai
  • 3 University of California, Division of Textiles and Clothing, Biological and Agricultural Engineering Department, CA, 95616, USA
Type
Published Article
Journal
Journal of Inorganic and Organometallic Polymers and Materials
Publisher
Springer-Verlag
Publication Date
Jun 01, 2005
Volume
15
Issue
2
Pages
261–267
Identifiers
DOI: 10.1007/s10904-005-5543-3
Source
Springer Nature
Keywords
License
Yellow

Abstract

The pyrolytic process in preparing rayon into activated carbon fiber was studied by thermogravimetric analyses (TGA) and differential thermal gravimetry (DTG). For the promotion of the pyrolytic reaction and increment of carbonization yield, impregnants including phosphoric acid (PA) and its three ammonium salts, as well as the ammonium sulfate (AS), are added respectively for best resultant both air and nitrogen atmospheric environments. The TGA and DTG curves for different cases— various combinations of impregnants and environment—are examined and some features from the curves are selected to characterize each curve more efficiently. The influence of the impregnants as well as the atmospheric conditions are investigated and some useful conclusions are drawn, which are deemed critical in quality control of the resultant activated carbon fibers.

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