本文研究了HTPB/AP推进剂中AP粒度对推进剂老化性能的影响。实验是在90℃的空气中进行的。老化性能以推进剂的拉伸性能、邵氏硬度,失重%和燃烧速度等参数为判据,并以DSC图谱作参考。实验结果表明:HTPB/AP推进剂中AP粒度的减小,有助于推进剂贮存老化性能的提高。各种粒度AP的DSC图谱,也进一步证实了这一结论。 In this paper, the effect of AP particle size on the propellants aging performance in HTPB / AP propellants was investigated. The experiment was carried out in air at 90 ° C. Aging properties of the propellant tensile properties, Shore hardness, weight loss and burning rate and other parameters as a criterion, and the DSC map for reference. The experimental results show that the reduction of AP particle size in HTPB / AP propellant is helpful to improve the storage aging performance of propellant. The DSC profiles of various particle sizes of AP also confirm this conclusion.