Authors:
Guang Ming CaiCollege of Textile, Wuhan Textile University, 430073, WuHan, Hubei, People’s Republic of China

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Wei Dong YuCollege of Textile, Wuhan Textile University, 430073, WuHan, Hubei, People’s Republic of China
Textile Materials and Technology Laboratory, Donghua University, 201620, Shanghai, People’s Republic of China

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Abstract

The thermal degradation behaviors of Kevlar 49, Kevlar 129 (Poly(p-phenylene terephthamide), Nomex (polyisophthaloyl metaphenylene diamine), and PBO(poly(p-phenylene benzobisoxazole)) fibers were measured by TG/FTIR and Py-GC/MS. The characteristic temperatures of the fibers in air were obtained by TG. It indicated that the initial degradation temperature of the PBO is the highest. The initial degradation temperature of Nomex fiber is the lowest, but the end decomposition temperature of Nomex is the highest. The gases released by the pyrolysis in air were mainly CO2, CO, H2O, NO, and HCN, also containing a small amount of NH3, and the absorption peaks of CO2 were the strongest. The results of Py-GC/MS showed that CO2 and benzene were the most pyrolysis fragment. With the change of pyrolysis temperature, the chromatogram and mass spectra results take a large variety. The pyrolysates can help us to study the pyrolysis process of high performance fibers.

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  • 10. Tamargo-Martı′nez, K, Villar-Rodil, S 2004 Thermal decomposition of poly(p-phenylenebenzobisoxazole) fibres: monitoring the chemical and nanostructural changes by Raman spectroscopy and scanning probe microscopy. Polym Degrad Stab. 86:263268 .

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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