A new method for the evaluation of stabilization index of polyacrylonitrile fibers

A new method for the evaluation of stabilization index (SI) using X-ray diffraction is described. The strongest diffraction peak from PAN fibers arises from the (100) plane whose intensity decreases gradually and markedly with the progress of stabilization, and complete stabilization results in the...

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Bibliographic Details
Published in:Materials letters 2007-05, Vol.61 (11), p.2292-2294
Main Authors: Yu, Mei-Jie, Bai, Yu-Jun, Wang, Cheng-Guo, Xu, Yong, Guo, Peng-Zong
Format: Article
Language:English
Subjects:
Fiber technology
Stabilization
X-ray techniques
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Summary:A new method for the evaluation of stabilization index (SI) using X-ray diffraction is described. The strongest diffraction peak from PAN fibers arises from the (100) plane whose intensity decreases gradually and markedly with the progress of stabilization, and complete stabilization results in the disappearance of the peak. The peak does not become superposed with others and its center hardly moves. This indicates that the SI can be characterized by intensity changes of the (100) peak. The feasibility of this was verified by elemental analysis and density measurements.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2006.08.071