【作者】 王玉平； 杨宗伟； 李洪珍； 王建华； 周小清； 张祺；

【Author】 WANG Yu-ping~(1,2),YANG Zong-wei~1,LI Hong-zhen~1,WANG Jian-hua~2,ZHOU Xiao-qing~1,ZHANG-Qi~1 (1.Institute of Chemical Materials,CAEP,Mianyang 621900,China; 2.College of Chemical Engineering and Environment,North University of China,Taiyuan 030051,China)

【机构】 中国工程物理研究院化工材料研究所； 中北大学化工与环境学院；

【摘要】 采用溶液共结晶法制备得到一种由六硝基六氮杂异伍兹烷（CL-20）和1,3-二硝基苯（DNB）组成的新型共晶炸药,其中CL-20与DNB的摩尔比为1:1。单晶X射线衍射结果表明该共晶为层状结构,且属正交晶系,Pbca空间群。分子间作用力分析表明,氢键为两种分子间的主要作用力。对共晶的热性能、感度和爆轰性能研究表明,共晶的熔点是136.6℃,较单组分DNB提高约45℃:50%爆炸的特性落高H₅₀为55cm,预测爆速和爆压分别为8434 m/s,34GPa。更多还原

【Abstract】 A novel co-crystal explosive composed of 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane（CL-20） and 1,3-dinitrobenzene （DNB） in a 1:1 molar ratio was prepared by co-crystallization in solution.Single crystal X-ray diffraction results show that it belongs to orthorhombic system with space group Pbca,and features a layered motif.Analysis of interactions in co-crystal shows that the main forces between two kinds of molecule in co-crystal are hydrogen bonds.Moreover,the properties of the co-crystal including thermal behavior,sensitivity,and detonation properties were evaluated.Results show that the melting point of co-crystal is 136.7℃, which increases by 45℃relative to DNB.The drop height of 50%explosion probability(H₅₀) is 55cm,predicting detonation velocity and detonation pressure are 8434m/s,34GPa,respectively.更多还原