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含能材料  2013 

2-偕二硝甲基-5-硝基四唑的合成与性能

DOI: 10.3969/j.issn.1006-9941.2013.05.026

Keywords: 应用化学,2-偕二硝甲基-5-硝基四唑,合成,性能

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Abstract:

以5-硝基四唑钠盐二水合物为原料,经取代反应和硝化-水解反应两步合成出了2-偕二硝甲基-5-硝基四唑(HDNMNT),总收率51.89%,采用核磁共振谱、红外光谱和元素分析对其结构进行了表征。为了研究HDNMNT的性能,运用量子化学方法预估了HDNMNT的理论密度、固相生成焓和爆轰性能,并利用差示扫描量热法(DSC)研究了其热稳定性。结果表明:HDNMNT理论密度高达1.88g·cm-3,固相标准生成焓为273.0kJ·mol-1,爆轰性能与RDX相当:爆速为8.732km·s-1,爆压为35.4GPa,但是热分解温度仅为120℃,热稳定性较差。

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