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含能材料  2003 

用非等温分析法估算含能材料的热爆炸临界温度(英)

Keywords: 临界温度,DSC,含能材料,非等温

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Abstract:

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-Ea/RT和dα/dt=A(1-α)[1+Ea/(RT)(1-T0/T)]e-Ea/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(T0)。对硝化棉而言,两种方法所得的Tb值彼此吻合。

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