Suchergebnisse

The paper mentions the basic ways of disposal and/or utilization of demilitarized energetic materials (EMs). Direct application of military explosives or propellants in blasting technique is undesirable at present, primarily because of their sensitivity to outer stimuli, the markedly negative oxygen balance, and impossibility of application of mechanized charging of boreholes. One of economically effective, safe and environmentally friendly methods of utilization of these EMs lies in their application as fuel and sensitizing components of commercial explosives with approximately zero oxygen balance. It can be stated that the approach to demilitarized EMs shows how advanced a particular country is from the standpoint of both expertise and legislature.

Plastic Explosives have several military and civilian applications. However, high performance with low sensitivity is difficult to obtain using an inert polymeric matrix. In this work, a new plastic explosive composition based on mixture of cis-1,3,4,6-tetranitrooctahydroimidazo-[4,5-d]imidazole (BCHMX) and 3-nitro-1,2,4-triazol-5-one (NTO) bonded by poly-dimethyl siloxane binder (BCHMX/NTO-Sil.),(44/44/12 by wt.), was prepared. For comparison, Two types of plastic explosives based on individual explosives, RDX (1,3,5-trinitro-1,3,5-triazinane or BCHMX, bonded by poly-dimethyl siloxane binder were studied in addition to the commercial available LOVA explosive TNTO (TNT 50% and NTO 50% by wt). Impact and friction sensitivities of these compositions as well as the individual explosives were determined. Experimental detonation velocity were performed for these compositions. Detonation characteristics were calculated using EXPLO5 program and compared with the experimental results. The results showed that BCHMX/NTO-Silicone has low sensitivity in the range of TNTO with higher detonation characteristic ; Plastické trhaviny mají několik vojenských a civilních aplikací. Vysoký výkon s nízkou citlivostí je však obtížné získat za použití inertní polymerní matrice. V této práci byla připravena nová plastická výbušná kompozice na bázi směsi cis-1,3,4,6-tetranitrooktahydroimidazo [4,5-d] imidazolu (BCHMX) a 3-nitro-l,2,4triazol-5-onu (NTO), pojeného polydimethylsiloxanovým pojivem (BCHMX / NTO-Sil.) (44/44/12 hmotn.). Pro srovnání byly studovány dva typy plastických trhavin na bázi jednotkových výbušin, RDX (1,3,5-trinitro-1,3,5-triazinan) nebo BCHMX, pojené polydimethylsiloxanovým pojivem, kromě komerčně dostupné trhaviny LOVA TNTO (TNT 50% a NTO 50% hmotn.) Byla stanovena citlivost nárazu a tření těchto kompozic i jednotlových výbušin Experimentální detonační rychlosti byly stanoveny pro tyto kompozice. Charakteristiky detonace byly vypočteny pomocí programu EXPLO5 a porovnány s experimentálními daty. Výsledky ukázaly, že BCHMX / NTO-Silicone má nízkou citlivost v porovnání s TNTO, ale má vyšší detonační charakteristiky.