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含能材料  2006 

3,3′-二氨基-4,4′-偶氮呋咱及其氧化偶氮呋咱的性能研究

Keywords: 有机化学,钝感炸药,呋咱,DAAzF,DAAF,性能

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Abstract:

采用DSC(升温速率分别为2.5,5,10,20℃·min-1)、TG、VST和热爆炸等方法研究了3,3′-二氨基-4,4′-偶氮呋咱(DAAzF)F和3,3′-二氨基-4,4′-氧化偶氮呋咱(DAAF)的热性能,应用kissenger法和Ozawa法两种方法计算得到DAAzF和DAAF的平均活化能分别为333.3,219.3kJ·mol-1,指前因子(lnA)为67.535,49.230s-1;DAAzF的热性能参数:VST为0.26mL·g-1/100℃/48h,0.73mL·g-1/120℃/48h,失重百分比:0.08%/100℃/48h,0.26%/120℃/48h,5s爆发点为375℃,临界温度为279.5℃,DAAF的热性能参数:VST为1.95mL·g-1/100℃/48h,失重百分比:0.47%/100℃/48h,3.26%/120℃/48h,5s爆发点为220℃,临界温度为222.5℃。结果表明,DAAzF具有良好的热安定性,而DAAF的热安定性稍差于DAAzF。感度测试表明DAAzF和DAAF对撞击钝感,对摩擦和静电火花不敏感。

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