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选择了一种典型硝胺推进剂 ,研究了加入不同的催化剂后燃烧性能的变化及样品高压DSC热分解行为。发现铅盐以及铜盐使硝胺推进剂在 5MPa下的分解反应提前完成 ,热焓增加 ,碳黑的加入不产生该趋势 ,但三元复合催化剂加剧了此作用 ;三元复合催化剂使该硝胺推进剂在 191 7°C到 2 39 5°C的分解反应速度提高 ,这一区域放热的增加正是燃速提高的原因。参量ΔH与ΔT之比ΔH/ΔT与推进剂燃速之间有关联 ,ΔH/ΔT越大 ,燃速越高
A typical nitramine propellant was selected to study the change of combustion performance after adding different catalysts and the DSC thermal decomposition behavior of samples. It was found that the decomposition reaction of nitramine propellant at 5 MPa was completed prematurely by the lead salts and copper salts. The increase of enthalpy and the addition of carbon black did not lead to this trend, but the effect was enhanced by the ternary composite catalyst. The ternary composite catalyst made the nitrate The rate of decomposition reaction of the amine propellants at 191 7 ° C to 2 395 ° C is increased, and the increase of exotherm in this region is the reason for the increase of the burning rate. The ratio ΔH / ΔT of the parameter ΔH is related to the burning rate of the propellant. The larger the ΔH / ΔT, the higher the burning rate