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Effect of MnC2O4 nanoparticles on the thermal decomposition of TEGDN/NC propellant

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Abstract

The effect of MnC2O4 nanoparticles on the thermal decomposition of double-base propellant composed of nitrocellulose (NC) and triethylene glycol dinitrate (TEGDN) has been investigated by TG/DSC–MS–FTIR coupling technique. The results show that the decomposition of TEGDN/NC propellant has two stages, the first stage is the volatility and decomposition of TEGDN, the second is the decomposition of NC. The addition of MnC2O4 nanoparticles gets the onset temperature of first stage higher, and makes the activation energy of decomposition of TEGDN grow by about 20–30 kJ/mol. The catalytic also accelerates the total weight loss, and makes the peak temperatures of DSC curves higher. The activation energy of the second stage has a decrease of 20–40 kJ/mol. MS and FTIR analysis show that the catalyst gets the gas products of macromolecular significantly reduce, while small molecules increase significantly. It also results in the decrease of H2O, N2O, and NO2, and the increase of NO and HCN. Above all, the catalytic improves the thermal stability of TEGDN/NC propellant, make it more safety in storage, and make the decomposition easier and more thorough in main reaction zone.

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Authors and Affiliations

  1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People’s Republic of China

    Yanchun Li, Kou Chenxia, Chuan Huang & Yi Cheng

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  1. Yanchun Li
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  2. Kou Chenxia
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  3. Chuan Huang
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  4. Yi Cheng
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Correspondence to Yi Cheng.

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Li, Y., Chenxia, K., Huang, C. et al. Effect of MnC2O4 nanoparticles on the thermal decomposition of TEGDN/NC propellant. J Therm Anal Calorim 109, 171–176 (2012). https://doi.org/10.1007/s10973-011-1694-3

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  • DOI: https://doi.org/10.1007/s10973-011-1694-3

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