Thermal Decomposition Characteristics of 2, 4, 6-Triamino-1, 3, 5-triazine-1, 3-dioxide (TATDO)

被引：0
|
作者：
Chen S.-H. [1 ,2 ]
Wan C. [2 ]
Feng Z.-C. [2 ]
Huo H. [1 ]
Yang J.-X. [1 ]
Ma H.-X. [2 ]
Zhao F.-Q. [1 ]
Xu K.-Z. [2 ]
机构：
[1] Xi'an Modern Chemistry Research Institute, Xi'an
[2] School of Chemical Engineering, Northwest University, Xi'an
来源：
Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2023年 / 46卷 / 08期
关键词：
2; 4; 6-trimino-1; 3; 5-triazine-1; 3-dioxide; gaseous product; nitrogen-rich energetic compound; non-isothermal decomposition; physical chemistry; TATDO;
D O I：
10.14077/j.issn.1007-7812.202302011
中图分类号：
学科分类号：
摘要：
For promoting the application of novel N-oxide energy-containing compounds 2, 4, 6-trimino-1, 3, 5-triazine-1, 3-dioxide (TATDO), the thermal decomposition characteristics of the compound were studied by using differential scanning calorimeter (DSC), thermogravimetric analyzer (TG-DTG) and thermogravimetric-mass-infrared spectrometry (TG-MS-FTIR) techniques. The results show that there is only one exothermal decomposition process of TATDO with an extrapolated starting point temperature of 295. 2 °C, a decomposition peak temperature of 315.8 °C, a heat release of 1 532J/g and a mass loss of about 41 % at a heating rate of 10.0 °C/min, indicating the good thermal stability of TATDO. The apparent activation energy and pre-exponential factor of the decomposition process were calculated by Kissinger method to be 377. 10kJ/mol and 103''80 s_1, respectively. Moreover, the main thermal decomposition gas products of TATDO are H20, NH3 and CO, and the possible thermal decomposition mechanism through the molecular and free radical structure model and dissociation energy was inferred that firstly intramolecular hydrogen transfer (tautomerism from TATDO to TATDO'), followed by nitrogen-oxygen bond cleavage and being oxidized to generate NH3 and carbon-nitrogen polymers. © 2023 China Ordnance Industry Corporation. All rights reserved.
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页码：748 / 754
页数：6
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