Cocrystal explosive hydrate of a powerful explosive, HNIW, with enhanced safety
Cocrystal explosive hydrate of a powerful explosive, HNIW, with enhanced safety
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DOI：
10.1039/c4ra12248h
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发表时间：
2014-01-01
期刊：
影响因子：
3.9
通讯作者：
Li, Hongzhen
中科院分区：
文献类型：
--
作者：
Yang, Zongwei;Zeng, Qun;Li, Hongzhen
采用共晶法合成了一种新型的六硝基六氮杂异伍兹烷（HNIW）、N-甲基吡咯烷酮（NMP）和水的共晶炸药水合物。采用X射线粉末衍射（PXRD）和X射线单晶衍射（SXRD）对样品的晶体结构进行了表征。该晶体结构属于单斜晶系，空间群为P2（1）/c。对共晶水合物的热性能、撞击感度和爆轰性能进行了评价。共晶水合物显示出独特的热行为，分别在91和252 ℃处具有吸热峰和分解峰。此外，共晶水合物显示出112 cm的50%着火概率的撞击高度，表明与纯α-HNIW和ε-HNIW相比，撞击感度显著降低。此外，虽然功率被稀释，但预计共晶水合物具有比纯DNAN（2，4-二硝基苯甲醚）和TNT（三硝基甲苯）更好的爆轰性能。因此，共晶水合物可能是一种很有前途的低感度炸药。
A novel cocrystal explosive hydrate containing HNIW (hexanitrohexaazaisowurtzitane), NMP (N-methyl-2-pyrrolidone) and water was synthesized through cocrystallization. The crystal structure was characterized by power X-ray diffraction (PXRD) and single crystal X-ray diffraction (SXRD). This crystalline structure belongs to the monoclinic crystal system with space group P2(1)/c. The properties of the cocrystal hydrate including thermal behavior, impact sensitivity and detonation performance were also evaluated. The cocrystal hydrate shows a unique thermal behavior with an endothermic peak and a decomposition peak at 91 and 252 degrees C, respectively. Besides, the cocrystal hydrate displays an impact height with a 50% ignition probability of 112 cm, indicating a substantial reduction in impact sensitivity compared to pure alpha-HNIW and epsilon-HNIW. Furthermore, although the power is diluted, the cocrystal hydrate is predicted to have better detonation performance than pure DNAN (2,4-dinitroanisole) and TNT (trinitrotoluene). Therefore, the cocrystal hydrate may be a promising low sensitivity explosive.