The effect of different additives on safety manipulation of cis-1,3,4,6-tetranitrooctahydroimidazo-[4,5-d]imidazole (BCHMX)

In this work, new cyclic nitramine named cis-1,3,4,6-tetranitrooctahydroimidazo-[4,5-d]imidazole (BCHMX) was premixed with insensitive explosives (3-nitro-1,2,4-triazol-5-one, NTO and1,1-diamino-2,2-dinitroethene, FOX) and with two cyclic nitramines (1,3,5-trinitro-1,3,5-triazinane, RDXand, 1,3,5,7-tetranitro-1,3,5,7-tetrazocane, HMX) and bonded by polydimethyl-siloxane (PDMS) binder.Impact and friction sensitivities were evaluated. Detonation velocity was measured and the detonationcharacteristics were calculated by EXPLO 5 thermodynamic code. Relative explosive strength wasdetermined by using the ballistic mortar test. The results showed a great positive influence on the sensitivityof BCHMX due to the addition of the insensitive explosive (NTO, FOX-7) however the performance wasdecreased. On the other side, mixing the nitramines improved the performance with reduction of BCHMXsensitivity. PDMS binder succeed to decrease the sensitivity of all the studied mixtures.

The effect of glycidyl azide polymer on the stability and explosive properties of different interesting nitramines

The preparation of glycidyl azide polymer (GAP) and its influence on the stability and explosive properties of polymer bonded explosives (PBXs) based on several cyclic nitramines (CL-20, RDX, HMX and BCHMX) are reported and discussed.