摘要
用加速热量仪研究了TATB及其杂质的绝热分解过程 ,得到了绝热分解温度和压力随时间的变化曲线以及温升速率随温度的变化曲线 ,根据绝热加速热量仪的温升速率方程和Arrhenius方程 ,计算了TATB绝热分解的动力学参数。结果表明 :TATB的初始热分解温度大于 2 90℃ ,反应系统最高温度大于 340℃ ,最大压力超过 1MPa ,而TCTNB和TCDNB存在多次放热反应 ,但每次放热量都很小 ,只有最后一次放热速率比较大。
The thermal decomposition of TATB and its impurity was investigated by accelerating rate calorimeter. The curves of thermal decomposition temperature and pressure versus time, and curves of temperature rate versus temperature for the systems are obtained. With the help of the temperature rate and Arrhenius equation, the kinetic parameters of the thermal decompositions for TATB are calculated. The results show that the onset thermal decomposition temperature of TATB is higher than 290℃; the maximal temperature of the reaction system is higher than 340℃ and the maximal pressure is higher than 1MPa. There are many times exothermal reaction in TCTNB and TCDNB, and the exothermal enthalpy is very small for each time. Only in the last time, the exothermal rate is bigger.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2004年第1期69-74,共6页
Explosion and Shock Waves
基金
中国工程物理研究院院内基金项目 (J2 0 0 2 0 1 0 3)
