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用ＤＳＣ技术考察了７种含黑索今酮（Ｋｅｔｏ－ＲＤＸ）火药的热分解特性，并对其中３种进行了密闭爆发器测试。将ＤＳＣ数据对动力学方程进行拟合以求得动力学参数。从密闭爆发器测试结果转换得到了该３种火药的燃速－压力曲线，并对其进行了转折性分析。结果表明，向火药中加入Ｋｅｔｏ－ＲＤＸ可提高火药燃速并降低其热分解表观活化能。含Ｋｅｔｏ－ＲＤＸ的火药其燃速压力指数在低压区较在高压区为高。在火药中同时存在有Ｋｅｔｏ－ＲＤＸ和ＲＤＸ对火药热分解和燃烧的稳定性是不利的。仅由Ｋｅｔｏ－ＲＤＸ与双基粘结剂组成的火药，其燃速压力指数较由ＲＤＸ与双基粘结剂组成的火药为低。
The thermal decomposition characteristics of seven Keto-RDX powders were investigated by DSC, and three of them were tested by closed-cell bombardment. The DSC data was fit to the kinetic equation to obtain the kinetic parameters. The combustion-pressure-pressure curves of the three kinds of gunpowder were obtained from the results of the closed-cell burst test, and the turning analysis was carried out. The results show that the addition of Keto-RDX to gunpowder can increase the burning rate of gunpowder and reduce the apparent activation energy of pyrolysis. The burning rate pressure index for Keto-RDX-containing gunpowder is higher in the low-pressure zone than in the high-pressure zone. The simultaneous presence of Keto-RDX and RDX in gunpowder is detrimental to the thermal decomposition and combustion stability of gunpowder. Gunpowders consisting solely of Keto-RDX and bismuth binders have lower burning rate pressure index than gunpowders consisting of RDX and bimonthly binders.