Safety Performances and Molecular Dynamics Simulation of DNTF/HATO

In order to study the safety performances of the mixed explosives of 3, 4-dinitrofurazanfuroxan (DNTF) and dihydroxylammonium 5, 5'-bistetrazole-1, 1'-diolate (HATO), the sensitivity of DNTF/HATO with different proportions were studied. The critical diameter of DNTF explosive was about 0.2 mm. When the HATO content was less than 55%, the mechanical sensitivity of DNTF/HATO decreased linearly with the increasing HATO content. The shock wave sensitivity of DNTF/HATO was similar to that of DNTF when the HATO content was no more than 50%, and only decreased when the HATO content was 55%. The thermal decomposition temperature of HATO decreased from 243℃ to 230℃ for DNTF/HATO. The molecular dynamics of DNTF/HATO was simulated by Dreiding force field. With the increasing HATO content, the bond length of C-N and C-O which connected NO2 and the ring in the DNTF molecule showed decreasing trend for DNTF/HATO, suggesting the enhanced structural stability of DNTF/HATO. © 2019, Editorial Board of Chinese Journal of Energetic Materials. All right reserved.