Premature thermal decomposition behavior of 3,4-dinitrofurazanfuroxan with certain types of nitrogen-rich compounds

Abstract

3,4-Dinitrofurazanfuroxan (DNTF), as a high-energy-density material, features good thermal stability and wide applications. This study aimed to elucidate the thermal decomposition mechanism of DNTF combined with nitrogen-rich compounds containing N–H. The thermal stabilities of DNTF and its hybrid systems were investigated using differential thermal analysis/thermogravimetry (TG), vacuum stability test, and accelerating rate calorimetry under isothermal, non-isothermal, and adiabatic conditions, respectively. Results showed that the thermal stability and thermal safety of DNTF significantly decreased after combining with nitrogen-rich compounds containing N–H. Calculation results showed that the activation energy of the DNTF hybrid systems was significantly lower than that of DNTF. The TG-IR was used to monitor the generation of fugitive gases during the thermal decomposition of the DNTF/5-aminotetrazole (5-ATZ) hybrid. Moreover, the nitrogen-rich molecules containing N–H interacted extensively with DNTF, and this interaction accelerated the thermal degradation of DNTF.