含能材料2025，Vol.33Issue(5)：477-484,8.DOI:10.11943/CJEM2024229
2,2-偶氮二[4,5-双(四唑-5-基)]-1,2,3-三唑的热行为及分解机理
Thermal Behavior and Decomposition Mechanism of 2,2-Azobi[4,5-bis(tetrazole-5-yl)]-1,2,3-triazole
摘要
Abstract
To study the thermal decomposition behavior of 2,2-azobi[4,5-bis(tetrazole-5-yl)]-1,2,3-triazole(NL24),the struc-ture,morphology and thermal decomposition characteristics of NL24 were studied by means of scanning electron microscopy,thermogravimetric analyzer,differential scanning calorimeter and thermogravimetric infrared mass spectrometry.The kinetic pa-rameters such as apparent activation energy and pre-exponential factor were calculated by Kissinger,Ozawa and Šatava-Šesták method,and the thermal decomposition mechanism of NL24 was speculated.Results show that NL24 has two main weight loss stages at the heating rate of 10℃·min-1.The first weight loss stage occurs at about 180℃,which belongs to the volatile endo-thermal process of dimethyl sulfoxide.The violent thermal decomposition of NL24 occurs at the second weight loss stage be-tween 270℃and 300℃,which has not only rapid gas generation rate,but also belongs to autocatalytic reaction.The main gas-eous products are N2,HCN,HN3,etc.The apparent activation energy and pre-exponential factor of the decomposition process are 174.69 kJ·mol-1 and 1016.60 s-1,respectively.The reaction model of thermal decomposition stage of NL24 is random nucle-ation and subsequent growth.关键词
2,2-偶氮二[4,5-双(四唑-5-基)]-1,2,3-三唑/富氮含能材料/热分解/动力学参数/气体产物Key words
2,2-azobis[4,5-bis(tetrazol-5-yl)]-1,2,3-triazole/nitrogen-rich energetic materials/thermal decomposition/dynam-ic parameters/gaseous products分类
武器工业引用本文复制引用
刘树亮,蔡涛,张立南,齐原,马慧朝,林秋汉..2,2-偶氮二[4,5-双(四唑-5-基)]-1,2,3-三唑的热行为及分解机理[J].含能材料,2025,33(5):477-484,8.基金项目
国家自然科学基金(22375095) National Natural Science Foundation of China(No.22375095) （22375095）
