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 language | English |
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Pages (from-to) | 21-25 |
Number of pages | 5 |
Journal | Huozhayao Xuebao/Chinese Journal of Explosives and Propellants |
Volume | 34 |
Issue number | 2 |
Publication status | Published - 2011 |
Keywords
- CL-20
- Kinetic parameter
- Physical chemistry;dynamic vacuum stability test
- Thermal stability; storage life