用非等温分析法估算含能材料的热爆炸临界温度（英）

通过合理的假设，从谢苗诺夫(Semenov)的热爆炸理论和两种非等温动力学方程：dα／dt＝A(1—α)e^-Em/RT和dα／dt＝A(1-α)1 Em/(RT)(1-T0/T)]e^-Em/RT，导出了估算含能材料(EMs)热爆炸临界温度(Tb)的两种方法。从EMs的非等温DSC曲线，我们很容易得到计算Tb值所用的自催化反应活化能(Ea)、onset温度(Te)和偏离基线的初始点温度(To)。对硝化棉而言，两种方法所得的Tb值彼此吻合。

Estimation of the Critical Temperature of Thermal Explosion for Energetic Materials Using Non-isothermal Analysis Method

Two methods for estimating the critical temperature(Tb) of thermal explosion for energetic materials (EMs) are derived from the Semenov's thermal explosion theory and two non-isothermal kinetic equations, dα/dt=A(1-α)e-Ea/RT and dα/dt=A(1-α)1+Ea/(RT)(1-T0/T)]e-Ea/RT, using reasonable hypotheses. We can easily obtain the values of the autocatalytic reaction activation energies (Ea), the onset temperature (Te) and the initial temperature (T0) at which DSC curve deviates from the baseline of the non-isothermal DSC curve of EMs, and then calculate the critical temperature (Tb) of thermal explosion by the two derived formulae. The results obtained with the two methods for nitrocellulose (NC) are in agreement to each other.