Dynamic vacuum stability test method for thermal decomposition of CL-20

Rui Liu*, Yan Li Yin, Tong Lai Zhang, Li Yang, Jian Guo Zhang, Zun Ning Zhou, Xiao Jing Qiao, Wen Jie Wang, Li Qiong Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The thermal decomposition of CL-20 was investigated by dynamic vacuum stability test (DVST). The results show that the mechanism function of non-isothermal decomposition of CL-20 is Avrami-Erofeev equation with n = 4. The apparent activation energy E, is 165. 3 kj · mol-1, and the pre-exponential factor In (A/s-1 ) is 40. 20. Isothermal decomposition mechanism function changes with temperature, the reaction rate constant increases exponentially with temperature from 1. 01 × 10 -6 s-1 at 90°C to 1. 81 × 10-s s -1 at 140 °C. The amount of decomposition gases of CL-20 tested at 100°C is 0. 502 mL ·; g-1 , showing that the thermal stability of CL-20 is better. By fitting the Semenov equation, the effective storage life of CL-20 at 25°C is 14. 4 a.

Original languageEnglish
Pages (from-to)21-25
Number of pages5
JournalHuozhayao Xuebao/Chinese Journal of Explosives and Propellants
Volume34
Issue number2
Publication statusPublished - 2011

Keywords

  • CL-20
  • Kinetic parameter
  • Physical chemistry;dynamic vacuum stability test
  • Thermal stability; storage life

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