Study on the reaction kinetics mechanism and properties of RDX/ADN/FKM2602 composite microspheres

This study prepared a class of RDX-based composite microspheres (RAF) containing ADN and FKM2602. The reaction kinetics of RAF composite microspheres were effectively improved by maintaining the system's high energy and safety performance. In the close packing state, when the heating rate is rapid, the thermal stability of RAF composite microspheres is better than that of RDX; the close packing state will reduce the degree of freedom of RDX and ADN reaction but will increase the degree of freedom of RAF composite microsphere reaction. The thermal conductivity of RAF composite microspheres is close to that of RDX. In the ignition experiment, the flame of RAF composite microspheres can be maintained without the external heat source. Regarding safety, the H 50 of RAF composite microspheres was 274.04% higher than that of RDX. The detonation velocity of RAF composite microspheres is slightly higher than that of raw material RDX. Overall, these findings highlight the effectiveness of ADN in enhancing the reaction kinetics of RDX-based composites.