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测试了加入不同粒度AP、不同品种催化剂的推进剂的燃速和加入不同降感材料的推进剂的机械感度,分析了影响AP/CMDB推进剂燃烧性能和机械感度的主要影响因素。结果表明AP粒度是影响AP/CMDB推进剂燃速的主要因素;加入纳米催化剂与某含铜化合物复配能进一步提高燃速,燃速压强指数不提高;推进剂中含能材料的比例和材料颗粒形貌对推进剂机械感度有明显影响。采用某低感增塑剂部分代替NG并加入某高导热碳基材料进行协同降感,能明显降低AP/CMDB推进剂的摩擦感度和撞击感度。
The burning rate of propellants and the mechanical sensitivities of propellants with different degrading materials were tested at different particle sizes of AP and different kinds of catalysts. The main influencing factors on the combustion performance and mechanical sensitivity of AP / CMDB propellants were analyzed. The results show that the particle size of AP is the main factor affecting the burning rate of AP / CMDB propellants. The addition of nano-catalyst and a copper-containing compound can further improve the burning rate and the burning rate pressure index does not increase. The proportions and materials of energy- Particle morphology has a significant effect on the mechanical sensitivity of propellants. Using a low-sensitizing plasticizer instead of NG and adding a high thermal conductive carbon-based material for synergistic degradation can significantly reduce the friction sensitivity and the impact sensitivity of AP / CMDB propellants.