湿度对单基发射药热分解行为的影响

Influence of Humidity on Thermal Decomposition Behavior of Single-base Propellant

在单基发射药装入玻璃试管密封和非密封的条件下,用微量热法研究了不同湿度单基发射药的热分解行为。实验结果表明,相同湿度(RH),密封条件下单基发射药开始加速分解温度(T0)大于非密封条件下的T0。密封条件下单基发射药最大分解速率温度(TP2)随着RH增加明显减小,但是密封条件下的TP2无明显变化。密闭条件下单基发射药分解反应的进程和反应的加速程度远大于非密封条件下。

The thermal decomposition behaviors of single-base propellants stored with different humidity were studied by using microcalorimctry with scaled and open glass test-tube. The experimental results show that under the same humidity condition, the temperature of initial accelerating thermal decomposition of single-base propellant under the scaled condition, TO , is larger than that under the open condition. The temperature corresponding to maximum decomposition rate of single-base propellant under the sealed condition,Tp2 ,reduces obviously with humidity increasing, but that under the open condition does not. The process and reaction accelerating extent of the decomposition reaction of single-base propellant under the scaled condition arc greater than those under the open condition.