双(3,5–二氨基–1,2,4–三唑)–5,5′–偶氮四唑的合成与性能

Synthesis and performance of bis(3,5-diamino-1,2,4-triazole)-5,5′-azotetrazolate

以5–氨基四唑为起始原料,经氧化与复分解反应合成了双(3,5–二氨基–1,2,4–三唑)–5,5′–偶氮四唑(BDATZT),利用红外光谱、核磁共振、元素分析对产物进行了表征。利用差示扫描量热法(DSC)、热失重法(TG)对BDATZT进行了热分解性能研究,确定其热分解峰温为201.9℃。结合Kissinger法和Ozawa法及相关方程计算了BDATZT的热动力学参数,得到的BDATZT的热分解活化能和热爆炸临界温度分别为233.56kJ/mol、469.51K。基于实测密度(ρ=1.568g/cm^(3))和预估生成焓(ΔH_(f)=2110.9kJ/mol),利用Explo5(V6.04)软件预估的BDATZT的爆速、爆压和爆热分别为7639m/s、23.60GPa和6.53MJ/kg。采用BAM撞击感度测试仪测得的BDATZT的感度>25.2J。

Bis(3,5-diamino-1,2,4-triazole)-5,5′-azotetrazolate(BDATZT)was synthesized by oxidation and double replacement reaction using 5-aminotetrazole(5-AT)as the starting material.The product was characterized by infrared spectroscopy,nuclear magnetic resonance and elemental analysis.The thermal decomposition performance of BDATZT was investigated by differential scanning calorimetry(DSC)and thermogravimetry(TG),the thermal decomposition peak temperature was determined to be 201.9℃.The thermodynamic parameters of BDATZT were calculated by combining the Kissinger method,Ozawa method and related equations.The obtained activation energy of thermal decomposition and the critical temperature of thermal explosion of BDATZT are 233.56kJ/mol and 469.51K,respectively.Based on the measured density(ρ=1.568g/cm^(3))and the predicted enthalpy of formation(ΔH_(f)=2110.9kJ/mol),the detonation velocity,detonation pressure and detonation heat of BDATZT estimated with the Explo5(V6.04)software are 7639m/s,23.60GPa and 6.53MJ/kg,respectively.The sensitivity of BDATZT determined by the BAM impact sensitivity tester is more than 25.2J.