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在钝化黑索今(RDX)中加入硼氢化镁(Mg(BH_4)_2)有望提高其爆炸性能,但也带来潜在的危险。为研究Mg(BH_4)_2在钝化RDX中的应用可行性,参照炸药试验方法,测试钝化RDX/Mg(BH_4)_2混合炸药的爆热、机械感度、热感度、热安定性以及组分间的相容性。结果表明,Mg(BH_4)_2质量分数为10%和20%时,炸药爆热分别提升16.93%和33.02%;表观活化能略有增加,对热安定性无明显影响;Mg(BH_4)_2与钝化RDX相容性为一级;质量分数为10%时,混合炸药的5 s爆发点为283℃,与钝化RDX相似,但机械感度明显增大。Mg(BH_4)_2作为添加剂虽然能够增强炸药能量,但必须避免撞击、摩擦等外界条件,以保证试验和生产安全。
The addition of magnesium borohydride (Mg (BH_4) _2) to RDX has the potential to increase its explosive properties, but it also poses potential dangers. In order to study the feasibility of Mg (BH_4) _2 in passivating RDX, the explosive detonation, mechanical sensitivity, thermal sensitivity and thermal stability of the passivated RDX / Mg (BH_4) _2 mixed explosives were tested with reference to the explosive test method. Compatibility between. The results show that the explosive detonation increases by 16.93% and 33.02% respectively when the mass fraction of Mg (BH_4) _2 is 10% and 20%, and the apparent activation energy increases slightly without any significant effect on the thermal stability. The Mg (BH_4) _2 And passivation RDX compatibility as a level; mass fraction of 10%, the explosive explosive burst point of 5 s 283 ℃, and passivation RDX similar, but the mechanical sensitivity increased significantly. Mg (BH_4) _2 as an additive can enhance the explosive energy, but must avoid the impact, friction and other external conditions in order to ensure the safety of testing and production.