采用5s爆发点试验获得了12种RDX和铝粉含量不同的RDX基含铝炸药的热爆发动力学参数(lnA和Eb).结果表明,随着RDX含量的增加,Eb先下降后升高,发现该炸药体系的热爆发动力学参数lnA和Eb之间存在补偿效应.根据热爆发温度Tb与RDX和铝粉含量的关系以及动力学补偿效应,从理论上导出了热爆发活化能Eb与RDX和铝粉含量的关系方程,并用实验数据验证了该关系方程.%The kinetic parameters (lnA and Eb)of heat explosion for 12 RDX-based aluminized explosives with different contents of RDX and aluminum powder were determined by 5 s explosion temperature test. The results show that the Et values first rise and then fall down with increasing the RDX contents. It is found that a kinetic compensation effect exits between lnA and Eb of the 12 systems. Based on kinetic compensation effect and the relation of explosion temperatures Tb and RDX and aluminum powder contents,an equation,which can represent the correlation of Eb with RDX and aluminum powder contents,is educed in theory and proved by experimental data.
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