一种重结晶黑索今的冲击波感度研究

为了改善黑索今(RDX)结晶形态和降低感度,以二甲基亚砜为溶剂、以Twin-80为晶体改性剂,对普通RDX进行重结晶处理,使用光学显微镜、密度瓶法等分析测试了RDX重结晶前后的晶体形貌和质量,表明重结晶RDX的晶体颗粒表观密度提高约0.007g.cm-3,颗粒外形更加规整圆滑。标准SSGT小隔板试验表明,以重结晶RDX制备的浇铸PBXs,其冲击波感度比相同配方下普通2类RDX降低25%。

The Shock Sensitivity of a Recrystallizing RDX

The ordinary RDX was recrystallized in dimethyl sulfoxide (DMSO) solvent with Twin-80 crystal modifier to improve its morphology and reduce its sensitivity. Optical microscopy and density-bottle were utilized to analyze RDX sample before and after recrystallization,the results show that apparent density of recrystallized RDX is increased by 0.007 g·cm^-3 and the recrystallized RDX has more regular and smooth crystal morphology. The recrystallized RDX and ordinary RDX were used respectively in the same cast PBX formula. The shock sensitivity of the two formula was compared by small scale gap test (SSGT) equipment,the results show that recrystallized RDX formula has 25% lower shock sensitivity than ordinary RDX formula.