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在相分离后,CL-20/MTNP共晶体的温度依赖分解

Fang Yang¹, Zongwei Yang¹, Qian Yu¹

¹Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China. c.d.zhao@caep.cn.

Physical chemistry chemical physics : PCCP

|February 27, 2024

概括

这项研究研究了CL-20/MTNP共晶的热分解动力学,这是一种常见的具有点的能量材料. 了解这些动力学对于安全应用先进炸药至关重要.

科学领域:

能量材料科学能量材料科学
化学动力学化学动力学
材料化学材料化学

背景情况:

基于CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane) 的共晶体是有前途的能量材料.
有点的CL-20共晶体的热分解动力学的研究是有限的.
CL-20/MTNP共晶体是经常观察到的一种类型,需要详细的热分析.

研究的目的:

为了研究CL-20/MTNP共晶体的热分解动力学.
了解点和分子间相互作用对分解行为的影响.
建立动力模型来预测热安全指标.

主要方法:

使用差分扫描热量计 (DSC) 和热重力测量分析 (TGA).
复杂的分解反应被分为三个组成途径.
使用模拟方法来确定运动参数和机制.

主要成果:

CL-20/MTNP的热分解是一种涉及相分离的异质反应.
在CL-20和化MTNP之间的分子间键显著影响了温度依赖的分解.
准确的动力模型被开发为每个分解路径.

结论:

该研究提供了对CL-20/MTNP共晶体的热分解过程的全面了解.
已建立的动力模型可以模拟关键的热安全指标,如TMRad和SADT.
这项研究有助于在爆炸物中更安全,更有效地应用CL-20/MTNP共晶.

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