为研究高能化合物 FOX-7在发射药中的应用，采用溶剂法制备3种 FOX-7含量不同的发射药样品，利用DSC对发射药进行分析，以及密闭爆发器试验，并针对FOX7-3发射药还进行高低常温试验比较。试验结果表明：发射药的热分解与配方中 FOX7含量成正比关系，热分解温度随 FOX-7含量增加而增高；配方中含 FOX-7较高的发射药(FOX7-3)，能量较高(火药力为1030.42 J/g)，燃速较快(燃速系数为0.0516，压力指数为1.066)，且燃烧渐增性较好；FOX7-3发射药在高、低、常温下燃烧性能稳定，低温没有出现碎裂的现象。FOX-7在发射药中能够显著提高发射药的火药力，温度系数较稳定，在一定的范围内，通过调整FOX-7的含量能够获得火药力较高和燃烧渐增性较好的发射药。%Three gun propellant samples with different content of FOX-7 were prepared by solvent method to investigate the application of FOX-7 in gun propellant. The thermal behavior and combustion property of the propellants containing FOX-7 were studied by DSC and closed bomb test. The closed bomb test of propellant sample FOX7-3 was carried out at high, low, normal temperature respectively. The results show that thermal decomposition temperature of gun propellants containing FOX-7 is proportional to the content of FOX-7. The energy of sample FOX7-3 (with higher content of FOX-7) is higher than others. The burning rate of sample FOX7-3 is faster and burning progressivity is better than others. The burning behavior of sample FOX7-3 under high, low and normal temperature is stable. There is no disintegration phenomenon at low temperature. The specific energy of gun propellant can be increased by adding FOX-7. The temperature coefficient is also stable. By changing the content of FOX-7 in gun propellant, the specific energy of gun propellant can be increased and the burning progressivity can be improved.
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