Reducing the sensitivity of BCHMX by incorporating 2,2' ,4,4' ,6,6'-hexanitroazobenzene (HNAB) in PBX mixture

摘要

The new eyesight in the fields of energetic materials is focusing on reserving high performance with enhancing the safety manipulation. In this work, special type of Plastic Bonded Explosive (PBX) mixture starts to be developed by combining new Nitramine, cis- 1,3,4,6- tetranitrooctahydroimidazo-[4,5-d]imidazole (BCHMX), with thermally stable explosive ,2,2',4,4',6,6'-hexanitroazobenzene (HNAB), bonded by Styrene Butadiene Rubber binder. The studied PBX was prepared as an insensitive explosive and compared with the Czech plastic explosive (SEMTEX 10), new Egyptian Plastic Explosive (EPX-1) and with analogous PBXs, filled by RDX (1,3,5-trinitro-1,3,5-triazinane), β-HMX (β- 1.3.5.7- tetranitro-J ,3,5,7-tetrazocane), BCHMX , also individual Explosives; PETN, BCHMX, β-HMX and RDX. Impact and friction sensitivities in addition to the measured detonation velocities were obtained. The detonation characteristics were calculated using (EXPLO5 code). Different relationships between the performance and the sensitivity had been investigated. The results showed that BCHMX/HNAB-SBR has very low sensitivity compared with the studied plastic explosives while its detonation characteristics are higher than the commercial plastic explosives.