Characterization of Bu-NENA/NC Low Sensitive Double-base Propellant

Ben Bo Zhao, Min Xia, Jia Qi Huang, Wei Li, Qiang Liu, Yun Jun Luo*

*Corresponding author for this work

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Abstract

Bu-NENA (N-butyl-N-nitratoethylnitramine)/NC (nitrocellulose) double-base propellant was formulated with Bu-NENA as a replacement for NG (nitroglycerin) and the NG/NC propellant was also prepared as a control. The sensitivity, evaporation, thermal decomposition and mechanical properties of the double-base propellants were investigated. Results show that the friction sensitivity of the Bu-NENA/NC propellant drops to 18% from 94%, and the H50 of the impact sensitivity enhances to 27.1 cm from 8.1 cm. Thermogravimetric analysis of Bu-NENA/NC propellant reveals that the onset temperature and the peak temperature of first decomposition stage reach to 144.6℃ and 179.5℃ from 120.3℃ and 151.5℃, respectively. The value of evaporation rate for Bu-NENA/NC propellant at 80, 90,100℃ is lower than that of NG/NC propellant,which indicates that the volatility of the Bu-NENA/NC propellant decreases. Bu-NENA/NC double-base propellant has better mechanical property than NG/NC propellant and the low temperature elongation at break point rises to 13.63%, which is 1.63 times to that of the NG/NC propellant.

Original languageEnglish
Pages (from-to)794-798
Number of pages5
JournalHanneng Cailiao/Chinese Journal of Energetic Materials
Volume25
Issue number10
DOIs
Publication statusPublished - 25 Oct 2017

Keywords

  • Bu-NENA (N-butyl-N-nitratoethylnitramine)/NC (nitrocellulose)
  • Double-base propellant
  • Evaporation
  • Mechanical property
  • Thermal decomposition

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Zhao, B. B., Xia, M., Huang, J. Q., Li, W., Liu, Q., & Luo, Y. J. (2017). Characterization of Bu-NENA/NC Low Sensitive Double-base Propellant. Hanneng Cailiao/Chinese Journal of Energetic Materials, 25(10), 794-798. https://doi.org/10.11943/j.issn.1006-9941.2017.10.001