关键词: 固体推进剂;溶剂非溶剂法+;铝粉;高氯酸铵;热分析

Abstract: Al/Ammonium perchlorate (AP) composite particles were prepared by solvent-nonsolvent method. TEM,SEM and XRD were used to characterize their structure and ICP was used to measure their component rate.To research the composite process of Al powder and AP on the propellant, thermal analysis of Al/AP composite particles and propellant contained these composite particles were studied by DTA. Results indicate that Al show some catalytic performance on the thermal decomposition of AP in the Al/AP composite particles, while for the simple mixture of Al and AP with the same proportion, Al does not have obvious catalytic effect. Compared with the thermal decomposition of the propellant adding pure Al, the peak temperature of high temperature decomposition of the propellant adding composite particles decreases and the total heat release increases greatly. Al/AP composite particles can improve the thermal decomposition performance of AP and propellant.

Key words: Solid propellant;Solvent-nonsolvent method~+;Powdered　aluminum;Ammonium perchlorate;Thermal　analysis