The effect of some DDT‐preventing agents (DPAs) and their mixtures on the impact sensitivity of RDX/PU has been studied. All specimen for drop‐hammer test were prepared by solvent‐slurry method. Two ways were used in adding DPA. The behavior of moulding powders obtained to the mechanical impact were assessed using KAST Impact Hammer. The results have shown that some DPA decreased the impact sensitivity of RDX/PU with different degree, and the loading way of DPA also had obvious effect on it. Finally, the characteristic heights H50 and the remained quantities of samples after impacting were analyzed and discussed.
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Wen et al. (1996) studied this question.
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