TG-FTIR Study on the Heat Treatment of Plasticized Melt-Spun PAN Precursors for Carbon Fiber

Bin Yan; Ke Qing Han; Jing Jie Zhang; Dan Wang; Su Ping Liu; Yin Cai Tian; Mu Huo Yu

doi:10.4028/www.scientific.net/AMM.193-194.444

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 193-194TG-FTIR Study on the Heat Treatment of Plasticized...

TG-FTIR Study on the Heat Treatment of Plasticized Melt-Spun PAN Precursors for Carbon Fiber

Abstract:

In this paper, the evolution of the gas evolved during the heat treatment of the plasticized melt-spun PAN fibers was investigated by TG-FTIR. TG, DTG and G-S (Gram-Schmidt) curves showed that there were two main decomposition stages during the heat treatment of melt-spun PAN fibers. And the results indicated that the main pyrolysis products were NH3 (966 cm-1 and 932 cm-1), HCN (713 cm-1), H2O (3650 cm-1), CH4 (1305cm-1), CO (2180 cm-1), CO2 (2360 cm-1 and 667 cm-1). The release of NH3 and HCN started at the same temperature 220 °C, which were the main products during the stabilization step. Besides, the formation mechanism of the pyrolysis products is presented in detail.

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Periodical:

Applied Mechanics and Materials (Volumes 193-194)

Pages:

444-447

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.193-194.444

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Online since:

August 2012

Authors:

Bin Yan, Ke Qing Han, Jing Jie Zhang, Dan Wang, Su Ping Liu, Yin Cai Tian, Mu Huo Yu

Keywords:

Heat Treatment, PAN Fiber, Plasticized Melt-Spinning, TG-FTIR

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