Thermo-Chemical Reactions of Modified PAN Fibers during Heat-Treatment Process

Yi Wang; Jie Liu; Jie Ying Liang

doi:10.4028/www.scientific.net/AMR.11-12.73

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 11-12Thermo-Chemical Reactions of Modified PAN Fibers...

Thermo-Chemical Reactions of Modified PAN Fibers during Heat-Treatment Process

Abstract:

Thermo-chemical reactions of modified PAN fibers during heat-treatment process were systematically studied by DSC, FT-IR, EA, XPS, etc. Comparing with original PAN fibers, chemical reactions, structures and elemental compositions of fibers modified with potassium permanganate (KMnO4) were all changed at a certain extent. KMnO4 had reduced the activation energy of cyclization reactions, decreased the area and widened the peak of exothermic curve, decreased the velocity of cyclization reaction, increased the oxygen content about 67%, hence increased C-O-C and C=O groups and the core/shell ratio.

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Periodical:

Advanced Materials Research (Volumes 11-12)

Pages:

73-76

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.11-12.73

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Online since:

February 2006

Authors:

Yi Wang, Jie Liu, Jie Ying Liang

Keywords:

Modification, Polyacrylonitrile, Potassium Permanganate, Thermo-Chemical Reaction

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References

[1] H. Kakida and K. Tashiro: Polymer J. Vol. 29 (1997), p.557.

Google Scholar

[2] W.X. Zhang, J. Liu and J.Y. Liang: J. Mater. Sci. Technol. Vol. 20 (2004), p.369.

Google Scholar

[3] J. Mittal, R.B. Mathur and O.P. Bahl: Carbon. Vol. 36 (1998), p.893.

Google Scholar

[4] P.H. Wang, J. Liu and R.Y. Li: J. Appl. Polym. Sci. Vol. 52 (1994), p.1667.

Google Scholar

[5] T.H. Ko, P. Chiranairadul and H.Y. Ting: J. Appl. Polym. Sci. Vol. 37 (1989), p.541.

Google Scholar

[6] W.X. Zhang, J. Liu and G. Wu: Carbon Vol. 41 (2003), p.2805. Fig. 5. O 1s XPS spectra of the preoxidizied fiber of G Fig. 4. O 1s XPS spectra of fiber U and G (a) Fiber U (b) Fiber G (a) (b).

Google Scholar