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含能三唑硝酸盐的热动力学行为及其热抵抗力
引用本文:杜旭杰,李晓东,邹美帅,杨荣杰,李玉川.含能三唑硝酸盐的热动力学行为及其热抵抗力[J].北京理工大学学报,2015,35(12):1315-1320.
作者姓名:杜旭杰  李晓东  邹美帅  杨荣杰  李玉川
作者单位:北京理工大学材料科学与工程学院,北京100081;湖北航天技术研究院总体设计所,湖北,武汉430040;北京理工大学材料科学与工程学院,北京,100081
基金项目:国家部委预研项目(40406050101,62201070103)
摘    要:利用热重-微商热重法(TG-DTG)对4-氨基-1,2,4-三唑硝酸盐(1a)和1-氨基-1,2,3-三唑硝酸盐(1b)的热行为及其非等温分解动力学进行了研究.结果表明在1a的热分解过程中开环反应和随后的二次分解反应是在较高的温度下几乎同时进行的,而对于1b而言这两类反应是在不同的温度范围分步进行的.通过将model-free法和mode-fitting法相结合,得到1a和1b热分解反应的动力学方程.采取将基本安定性试验评价法与自加速分解温度评价法相结合的方法评估含能三唑硝酸盐的热安全性,解决了原有自加速分解温度评价法试验成本高、危险性大及试验周期长等问题.结果表明,含能三唑硝酸盐的对热抵抗能力与其三唑环结构的对称性有很大的关系. 

关 键 词:含能三唑硝酸盐  TG-DTG  热行为  非等温分解动力学  热抵抗力
收稿时间:3/7/2014 12:00:00 AM

Thermokinetic Behavior and Heat-Resistance Stabilities of Energetic Triazole Nitrates
DU Xu-jie,LI Xiao-dong,ZOU Mei-shuai,YANG Rong-jie and LI Yu-chuan.Thermokinetic Behavior and Heat-Resistance Stabilities of Energetic Triazole Nitrates[J].Journal of Beijing Institute of Technology(Natural Science Edition),2015,35(12):1315-1320.
Authors:DU Xu-jie  LI Xiao-dong  ZOU Mei-shuai  YANG Rong-jie and LI Yu-chuan
Institution:1.School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;The 9th Designing of China Aerospace Science Industry Co, Wuhan, Hubei 430040, China2.School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
Abstract:Thermal behavior and non-isothermal decomposition kinetics of 4-amino-1,2,4-triazolium nitrate(1a) and 1-amino-1,2,3-triazolium nitrate(1b) were addressed by using TG-DTG method at different heating rates. The result shows that for 1a the ring-open reaction and subsquent decomposition reaction occur at highter temperature without obvious time interval, while for 1b these two kinds of reactions occur step by step during different temperature range. The kinetic equations for the decomposition of 1a and 1b were obtained by combining model-free method and model-fitting method. A new method that combining the evaluation way for the fundamental stability test with the evaluation way for the self-accelerating decomposition temperature to realize the evaluation for the heat-resistance of stabilities of energetic triazole nitrates was proposed, which got rid of the defects of former evaluation way for the self-accelerating decomposition temperature such as high cost, high danger, long cycle and so on. The result show that the heat-resistance ability has a close relationship with the symmetry of triazole ring. The better symmetry the triazole ring has, the stronger heat-resistance ability the energetic triazole nitrate has.
Keywords:energetic triazole nitrates  TG-DTG  thermal behavior  non-isothermal decomposition kinetics  heat-resistance ability
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