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通过优化配方中AP和Al的质量百分比,设计并制备了一种於浆浇铸AP/Al/CMDB推进剂,并系统研究了推进剂的比冲、工艺等。研究表明,当扩张比为100∶1(p=10MPa)时,该推进剂的比冲高达2 637N.s.kg-1;工艺、力学和燃烧性能也较好,特别是压强指数较低(0.47,1～10MPa;0.37,10～20MPa);其感度和化学安定性可满足火箭发动机自由装填的要求。TG-DSC分析表明,这种推进剂的热重损失可分为三段,而在DSC曲线上仅能观察到两个热分解过程,而火焰分析表明,该推进剂的火焰仍为典型的扩散火焰。
By optimizing the mass percentage of AP and Al in the formulation, a kind of AP / Al / CMDB propellant for slurry casting was designed and prepared, and the specific impulse, process and so on of propellant were systematically studied. Studies have shown that when the expansion ratio is 100: 1 (p = 10MPa), the specific impulse of the propellant is up to 2637N.s.kg-1; the process, mechanics and combustion properties are also better, especially the pressure index is lower 0.47,1 ~ 10MPa; 0.37,10 ~ 20MPa); its sensitivity and chemical stability to meet the requirements of rocket motor free loading. TG-DSC analysis shows that the thermogravimetric loss of this propellant can be divided into three sections, while only two thermal decomposition processes can be observed on the DSC curve. The flame analysis shows that the flame of the propellant is still typical of diffusion flame.