Ondřej NĚMEC

Central European Journal of Energetic Materials Volume 8, Number 3, 2011

Fortification of W/O Emulsions by Demilitarized Explosives. Part I. Use of TNT

Ondřej NĚMEC, Marcela JUNGOVÁ, Roman MAREČEK,

Martin NOVOTNÝ, Svatopluk ZEMAN and Jakub ŠELEŠOVSKÝ

Institute of Energetic Materials, Faculty of Chemical Technology,

University of Pardubice, Studentska 95, CZ-532 10 Pardubice, Czech Republic

Abstract: This paper presents a study of the relationship between detonation velocities, D, and relative explosive strength (RS) of fortified W/O emulsion explosives, on the one hand, and the grain size and quality of the demilitarized TNT used for this fortification, on the other. It has been found that demilitarized TNT having a grain size below 400 µm could give acceptable results both in terms of initiation and detonation velocity and the RS values. Demilitarized TNT, however, is not a reliable sensitizer even in a micronized state, and therefore using TNT necessitates simultaneous sensitizing of the final W/O explosive with microballoons and it has no significantly better influence on the performance of the resulting explosives. The small-scale cook-off test of such a W/O mixture fortified by 50% by wt. of TNT has shown that such a mixture is a relatively safe explosive.

Keywords: demilitarized explosives, detonation, emulsion, TNT

Institute of Industrial Organic Chemistry

Warsaw, Poland