4,4'-阿佐比斯-1,2,4-三醇的热力学分析和热解机制
Kaiyi Qin1, Mimi Zhu1, Mingmin Zhang1
1School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
ACS omega
|October 9, 2023
概括
使用热重力测量和DSC研究了4,4'-azobis-1,2,4-triazole (ATRZ) 的热分解动力学. 确定了动力参数,显示ATRZ在300°C左右通过外热分解.
科学领域:
- 化学动力学 化学动力学
- 材料科学是一种材料科学.
- 热力学是一种热力学.
背景情况:
- 4,4 -azobis-1,2,4-triazole (ATRZ) 是一种化合物,需要动力分析才能安全处理和应用.
- 了解热分解对于高能材料和化学过程安全至关重要.
研究的目的:
- 研究ATRZ的非同热热分解动力学.
- 为了确定关键的动力参数,如激活能量和预指数因子.
- 阐明ATRZ的分解机制和途径.
主要方法:
- 使用了热重力测量 (TG) 和差分扫描热量测量 (DSC).
- 非隔热实验是在5,10,15和20°C·min-1的加热速度下进行的.
- 基辛格,Ozawa和Šatava-Šestak的方法用于动力参数计算.
- 热解气体染色学和质谱学 (PY-GC-MS) 用于途径分析.
主要成果:
- 显而易见的激活能量 (E) 和预指数因子 (A) 值在不同的方法中一致确定 (例如,E ≈ 381-393 kJ·mol-1 ,A ≈ 10 s-1).
- 在300°C左右,ATRZ呈现出快速的外热分解.
- 分析了分解机制的功能,并推断出热分解运动方程.
结论:
- 该研究成功确定了ATRZ.的非异热热分解动力学.
- 获得的动力参数为预测在各种热条件下的ATRZ行为提供了有价值的数据.
- 识别的分解途径有助于理解反应机制和潜在的危害.
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