摘要
以水合肼和叠氮氰为原料,经环化、缩合、氧化偶联、酸解、硝化、中和等反应,合成了1,1′-二硝氨基-5,5′-偶氮双四唑钾盐(K_2DNAABT);利用红外、核磁(~1 H NMR、^(13) C NMR)、元素分析和单晶X射线衍射表征了目标化合物的结构;采用DSC和TG方法研究了K_2DNAABT的热性能;基于晶体密度和计算的生成热,采用EXPLO5程序软件预估了K_2DNAABT的爆轰性能。结果表明,K_2DNAABT热分解峰温为194.27°C,晶体密度为2.11g/cm^3,生成热为617.0kJ/mol,爆速为8 367m/s,爆压为31.5GPa,具有较好的热稳定性,优良的爆轰性能,有望作为叠氮化铅的绿色替代物。
Dipotassium 1,1′-dinitramino-5,5′-azobitetrazolate （K2DNAABT） was synthesized using hydrazine hydrate and cyanogen azide as starting materials via the reactions of cyclization,condensation,oxidation coupling,acidolysis,nitration and neutralization.The structure of target compound was characterized by IR,^1H and ^13C NMR,elemental analysis and single-crystal X-ray diffraction.The thermal behavior of K2DNAABT was investigated by DSC and TG.Based on crystal density and calculated heat of formation,the detonation parameters of K2DNAABT were predicted by EXPLO5 program software.The results show that the decomposition peak temperature of K2DNAABT is 194.27℃,the crystal density of K2DNAABT is 2.11g/cm3,its heat of formation is 617.0kJ/mol,detonation velocity is 8367m/s and detonation pressure is 31.5GPa,showing that it has good heat stability and excellent detonation performance,and is expected to be used as green alternative for lead （II） azide.
作者
李亚南
张生勇
舒远杰
刘亚静
王伯周
毕福强
翟连杰
LI Ya-nan ZHANG Sheng-yong SHU Yuan-jie LIU Ya-jing WANG Bo-zhou BI Fu-qiang ZHAI Lian-jie(Xi＇an Modern Chemistry Research Institute, Xi＇an 710065 ,China State Key Laboratory of Fluorine ＆ Nitrogen Chemicals,Xi＇an 710065,China)
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2017年第2期52-56,共5页
Chinese Journal of Explosives & Propellants
基金
国家自然科学基金项目(No.21373157)
