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基于bis ((4-nitropyrazole) 的高级四环耐热能量材料搭建了1,2,4-triazole桥梁

Luyao Chen¹, Wei Hu¹, Caijin Lei¹

¹School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, Jiangsu, China. gcheng@mail.njust.edu.cn.

Dalton transactions (Cambridge, England : 2003)

|July 16, 2024

概括

研究人员开发了一种具有高热稳定性和能量的新型四环式爆炸物. 这种新能源材料在爆炸速度和热稳定性方面超越了传统的爆炸物,同时保持了低灵敏度.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
能量材料能量材料

背景情况:

在深度采矿,石油勘探和航空航天领域,对耐热能量材料的需求日益增加.
需要具有高热稳定性和能量输出的先进爆炸物.

研究的目的:

为了合成和表征一种新的四环式耐热爆炸物.
评估其性能,包括爆炸速度,热稳定性和灵敏度.

主要方法:

一个四环框架的合成,使用 bis ((4-nitropyrazole) 作为连接 1,2,4-triazole 的能量桥梁.
制备化合物3及其衍生物 (6-8).
性能评估包括爆炸速度,热稳定性 (T_d),冲击灵敏度 (IS) 和摩擦灵敏度 (FS).

主要成果:

成功制备了四环耐热爆炸剂5.5'-(4,4'-dinitro-2H,2'H-[3,3'-bipyrazole]-5,5'-diyl) bis.(4H-1,2,4-triazole-3,4-diamine) (3) 和其衍生物.
复合物3的爆炸速度为8604米/秒,超过HNS (7164米/秒).
化合物3比HNS (318°C) 具有更高的热稳定性 (T_d = 340°C) 和较低的灵敏性 (IS>40 J;FS>360 N).

结论:

新型四环化合物3表现出卓越的综合性能.
与HNS等常规爆炸物相比,它提供了更高的爆炸速度和热稳定性.
化合物3是先进的耐热和不敏感的能量材料的有希望的候选者.

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