期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 120, 期 -, 页码 165-173出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2016.05.002
关键词
Composite material; Nanostructure; Thermal property; TG-IR
资金
- Program for the National Natural Science Foundation of China [21373161]
- New Century Excellent Talents in University of Ministry of Education of China [NCET-12-1047]
- Research Fund for the Doctoral Program of Higher Education of China (RFDP) [20126101110009]
- Opening Foundation of State Key Laboratory of Continental Dynamics, China (Northwest University) [12LCD07]
The effects Fe2O3 nanoparticles on the thermal decomposition of nitrocellulose (NC) have been investigated by the differential scanning calorimetry (DSC) method and the thermogravimetry with Fourier transform infrared analysis (TG-IR). DSC analysis shows that Fe2O3 can be safely used with NC, and the thermal decomposition reactions of Fe2O3-NC composite and NC follow the same thermal decomposition mechanism of Avrami-Erofeev equation f(alpha) = 1.5(1-alpha)[-ln(1-alpha)](1/3) in differential form. The as-prepared nanoparticles could reduce the activation energy of the decomposition reaction and the critical temperature of thermal explosion of NC. In addition, TG-IR analysis indicated that Fe2O3 nanoparticles play a crucial role in promoting the O-NO2 bond cleavage and secondary autocatalytic reactions in condensed phase. This contribution suggests that introducing Fe2O3 nanostructure may be a promising way to accelerate the thermal decomposition of NC. (C) 2016 Elsevier B.V. All rights reserved.
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