Abstract
Abstract A composite explosive based on 1, 3, 5-trinitro-1, 3, 5-triazinane (RDX) was prepared by electrostaticspray method with dioctyl sebacate (DOS) as desensitizer. After preparation, the particle size and crystal structure were characterized and 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 were in the range of 1–3 μm. Compared with RDX, the crystal types, chemical bonds and functional groups of the RDX/DOS composites were unchanged. The activation energy of the composites was lower than that of raw RDX, and the 3wt % DOS composites had the lowest activation energy. The impact sensitivity and friction sensitivity of the RDX/DOS composites were lower than those of raw RDX, and the 10wt% DOS composites had the highest H 50 (125.9 cm) and the lowest friction sensitivity (8%).
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