Study of the effect of composite energetic binder on the performance of DAAF at ambient and elevated temperatures

Abstract

To investigate the effect of composite energetic binders on the performance of DAAF at ambient as well as elevated temperatures, DAAF solid microspheres with uniform particle size were prepared using droplet microfluidics. The morphology, particle size distribution, structure, thermal properties and mechanical susceptibility of the microspheres were characterized and analyzed. The results show that the use of composite binder can effectively improve the thermal stability of DAAF, and the activation energy is increased from 168.87 to 218.53 kJ ⋅ mol−1. The crystal shape is not changed after cladding, and the impact sensitivity value is improved by 5 J over the submicron DAAF. Composite energetic binder DAAF microspheres and submicron DAAF were selected for experiments under high temperature environment. The results showed that at high temperatures, when the mass loss was more than 16 %, the submicron DAAF was better than the DAAF microspheres in terms of storage time.