Note on the use of the vacuum stability test in the study of initiation reactivity of attractive cyclic nitramines in Formex P1 matrix

作者: Svatopluk Zeman , Ahmed Elbeih , Qi-Long Yan

DOI: 10.1007/S10973-012-2487-Z

关键词: DetonationMaterials scienceExplosive materialThermodynamicsDioctyl sebacateIsothermal processReaction rateOrganic chemistryPlastic explosiveSensitivity (explosives)Reactivity (chemistry)

摘要: The zero-order reaction rates (specific rate constants) for isothermal decomposition at 120 °C of plastic bonded explosives (PBXs) were measured by means the Czech vacuum stability test, STABIL. PBXs are based on 1,3,5-trinitro-1,3,5-triazinane (RDX), β-1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX), cis-1,3,4,6-tetranitro-octahydroimidazo-[4,5-d] imidazole (BCHMX), and e-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (e-HNIW, e-CL-20) with 9 wt.% C4 type matrix, i.e., a matrix containing 25 polyisobutylene, 59 dioctyl sebacate 16 oil HM46. Dependencies found between specific constants mentioned detonation velocities PBXs, consequently these impact pure explosive fillers, RDX, β-HMX, e-HNIW, RS-e-HNIW, BCHMX and, same time, corresponding PBXs. results obtained compared those from recent analogous study using an SBR (Formex P1) binder which could increase PBXs’ reactivity in comparison matrix. These also help to dispel widely held view about HNIW being relatively sensitive explosive.

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