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Electrostaticspray Preparation and Properties of RDX/DOS Composites

JIAN YAO, JIAN LIU, YONGXU WANG, BIN LI, LIFENG XIE

Abstract


Composite explosives based on 1, 3, 5-trinitro-1, 3, 5-triazinane (RDX) with dioctyl sebacate (DOS) as desensitizer were prepared by electrostatic spray method. After preparation, particle size and crystal structure of the composites were characterized, and the chemical features, such as chemical bonds, functional groups, thermal decomposition parameters and mechanical sensitivity, were investigated as well. In terms of the morphologies of the composites, the particle sizes are in the range from 1 μm to 3 μm. Compared with RDX, the crystal types, chemical bonds and functional groups of RDX/DOS composites are unchanged. The activation energy of the composites is lower than that of raw RDX, and the 3wt % DOS composite has the lowest activation energy. The impact sensitivity and friction sensitivity of RDX/DOS composites are lower than those of raw RDX, and the 10wt% DOS composite has the highest H50 (125.9 cm) and the lowest friction sensitivity (8%).

Keywords


RDX, DOS, electrostatic spray, composites, insensitive


DOI
10.12783/ballistics2017/16841

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