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含能材料  2013 

离子液体存在下重结晶制备降感HMX

DOI: 10.3969/j.issn.1006-9941.2013.01.001

Keywords: 物理化学,奥克托今(HMX),降感,重结晶,离子液体

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Abstract:

为建立安全、高效、绿色钝感奥克托今(HMX)制备方法,分别以甲基咪唑硝酸盐([mimH]NO3)、丁磺酸甲基咪唑硝酸盐([mimBSO3H]NO3)、三乙胺硝酸盐([Et3NH]NO3)、丁磺酸三乙胺硝酸盐([Et3NBSO3H]NO3)为晶型助剂,丙酮、环己酮为溶剂,采用溶剂-非溶剂法重结晶制备降感HMX。结果表明,在离子液体[mimBSO3H]NO3(质量为HMX的1.5%)存在的条件下,以环己酮为溶剂,在60℃,搅拌速度750r·min-1条件下对HMX重结晶可使HMX晶体趋于球形化。所得HMX晶体表面光滑,边缘整齐,热分解峰温提高到288℃,撞击感度4%。

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