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作 者:熊华林[1] 杨红伟[1] 程广斌[1] XIONG Hua-lin;YANG Hong-wei;CHENG Guang-bin(School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出 处:《含能材料》2018年第11期910-918,共9页Chinese Journal of Energetic Materials
基 金:National Natural Science Foundation of China(21676147);Natural Science Foundation of Jiangsu Province(BK20151483);Science Challenge Project
摘 要:以5,5′?二硝胺基?2,2′?联?1,3,4?噁二唑为原料合成了一系列含能盐,采用了红外(FT?IR))、核磁(NMR)和元素分析进行了结构表征。并用X?射线单晶衍射进一步确定了3?氨基?1,2,4?三唑盐(9·2H_2O)和4?氨基?1,2,4?三唑盐(10)的结构,用差热扫描法(DSC)测定了它们的热分解温度,用Explos 5 v6.02计算了它们的爆轰性能。结果表明它们的热分解温度范围为146.8~239.9℃;计算爆速高于7693 m·s^(-1),爆压高于21.3 GPa;密度介于1.683~1.941 g·cm^(-3),实测撞击感度介于10~28 J,摩擦感度介于160~360 N,表明5,5′?二硝胺基?2,2′?联?1,3,4?噁二唑类含能盐是一类性能较好的高能量密度材料。Using 5,5′-dinitroamino-2,2′-bi(1,3,4-oxadiazole)as starting material,a serials of energetic salts were synthesized.All compounds were characterized by FT-IR,multinuclear NMR spectroscopy and elemental analysis.The structures of di(3-amino-1,2,4-triazolium)5,5′-dinitroamino-2,2′-bi(1,3,4-oxadiazolate)·2H2O(9·2H2O)and di(4-amino-1,2,4-triazolium)5,5′-dinitroamino-2,2′-b(i 1,3,4-oxadiazolate)(10)were further confirmed by single crystal X-ray diffraction.Their thermal stabilities were determined by differential scanning calorimetry(DSC).The detonation performance was calculated with Explo5 v6.02 software.The results show that the temperature of the thermal decomposition reaction is in the range of 146.8-239.9℃.The calculated detonation velocity and pressure are higher than 7693 m·s^-1 and 21.3 GPa,respectively.Their densities are from 1.683 to 1.941 g·cm^-3.The measured impact sensitivities are between 10 J and 28 J and friction sensitivities are between 160 N and 360 N,which indicated that most salts of 5,5′-dinitroamino-2,2′-bi(1,3,4-oxadiazole)are high energy-density materials with good properties.
关 键 词:含能材料 1 3 4-噁二唑 X-射线单晶衍射 感度 爆轰性能
分 类 号:TJ55[兵器科学与技术—军事化学与烟火技术] O62[理学—有机化学]
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