应用化学2017，Vol.34Issue(8)：928-935,8.DOI:10.11944/j.issn.1000-0518.2017.08.160466
一种新型含能材料s-四嗪钴盐的合成、热分解动力学及热安全性
A New Energetic Material-Tetrazine Cobalt Salt:Synthesis, Thermal Decomposition Kinetics and Thermal Safety
摘要
Abstract
Tetrazine compounds have great applications in energetic materials field, which is attributed to its high energy, insensitivity, high burning rate, low pressure and good thermal stability properties.However, they have disadvantages of low density and thermal stability.To enhance the low properties of tetrazine compounds, a series of the tetrazine derivatives have attracted considerable attention.3,6-Bis(1-H-1,2,3,4-tetrazole-5-amino)-1,2,4,5-tetrazine(BTATz), as a high-nitrogen energetic material, has good catalytic performance and application prospect.Therefore, we synthesized 1,2,4,5-tetrazine (s-tetrazine) cobalt salt with potassium salt of BTATz and cobalt nitrate in an aqueous solution.Its structure was characterized with elemental analysis, Fourier transform infrared spectrometer(FTIR) and inductively coupled plasma mass spectrometry(ICP-MS).Its chemical formula is Co(C4H2N14)·4H2O.The thermal behavior and thermal decomposition reaction kinetics were also investigated with differential scanning calorimetric(DSC) and thermal gravimetric-differential thermal gravimetric(TG-DTG) methods.The self-accelerating decomposition temperature(TSADT), thermal ignition temperature(TTIT), critical temperature of thermal explosion(Tb) and the adiabatic time-to-explosion(tTIAD) were calculated as the important parameters to estimate the thermal safety, and the value were 509.69 K, 556.31 K, 524.93 K and 88.40 s, respectively.The adiabatic time-to-explosion is longer than those of Ca salt, Mg salt and Sr salt and the exothermic capacity is higher than that of its ligand BTATz.Therefore, it is expected to be a good combustion catalyst.关键词
s-四嗪/钴盐/热分解机理/热安全性Key words
s-tetrazine/cobalt salt/thermal decomposition mechanism/thermal safety分类
化学化工引用本文复制引用
杨瑾,刘晴,任莹辉,张鲜波,马海霞,徐抗震,赵凤起,胡荣祖..一种新型含能材料s-四嗪钴盐的合成、热分解动力学及热安全性[J].应用化学,2017,34(8):928-935,8.基金项目
武器装备预研基金资助项目(No.***3401)Supported by the National Defense Pre-Research Foundation of China(No.***3401) （No.***3401）
