3,6-双(1-氢-1,2,3,4-四唑-5-氨基)-1,2,4,5-四嗪银盐的热分解反应动力学及热安全性

doi:10.3724/SP.J.1095.2013.20555

摘要/Abstract

摘要： 利用两步合成法，得到标题化合物3,6-双(1-氢-1,2,3,4-四唑-5-氨基)-1,2,4,5-四嗪(BTATz)银盐（Ag2(BTATz)·2H2O），并用元素分析、X荧光和红外光谱分析对其进行了结构表征。采用DSC和TG-DTG技术对化合物进行热分解行为及非等温热分解动力学研究。结果表明，其热分解过程是由1个吸热阶段和2个放热阶段组成，主放热阶段的非等温热分解反应动力学方程为:dα/dt=1014.29×{3(1-α)[-ln(1-α)]1/4/4}exp(-2.10×104/T)。计算得到化合物的自加速分解温度(TSADT)、热爆炸临界温度(Tb)、热点火温度(TTIT)和绝热至爆时间（tTIAD）分别为517.10 K、580.12 K、531.00 K和90.32 s ，以此来评价其热安全性。

关键词: 双(氢四唑氨基)四嗪, 银盐, 热分解动力学, 热安全性

Abstract: The silver salt of 3,6-bis(1-H-1,2,3,4-tetrazole-5-amino)-1,2,4,5-tetrazine(BTATz)(Ag2(BTATz)·2H2O) was synthesized by two steps, and its structure was characterized by elemental analysis, X-ray fluorescence diffraction and FT-IR spectra. The thermal behavior of the compound was studied under non-isothermal conditions using DSC and TGDTG methods, the result indicated that the thermal decomposition comprises of one endothermic and two exothermic stages, the nonisothermal decomposition reaction kinetics equation of the main exothermic stage can be expressed as:dα/dt=1014.29×{3(1-α)[-ln (1-α)]1/4/4}exp(-2.10×104/T). The values of the self-accelerating decomposition temperature(TSADT), critical temperatures of thermal explosion(Tb), thermal ignition temperature(TTIT) and the adiabatic time-to-explosion(tTIAD) for the compound were calculated as 517.10 K, 580.12 K, 531.00 K and 90.32 s, respectively. In addition, its thermal safety was evaluated.

Key words: bis(H-tetrazole-amino)-tetrazine, silver salt, thermal decomposition reaction kinetics, thermal safety

中图分类号:

O614.1

任莹辉, 李文, 张鲜波, 赵凤起, 仪建华, 马海霞, 徐抗震, 宋纪蓉. 3,6-双(1-氢-1,2,3,4-四唑-5-氨基)-1,2,4,5-四嗪银盐的热分解反应动力学及热安全性[J]. 应用化学, DOI: 10.3724/SP.J.1095.2013.20555.

REN Yinghui1,2*, LI Wen2, ZHANG Xianbo2, ZHAO Fengqi1, YI Jianhua1, MA Haixia2, XU Kangzhen2, SONG Jirong2,3. Nonisothermal Decomposition Kinetics and Thermal Safety of Ag2(BTATz)·2H2O（BTATz=3,6-Bis(1-H-1,2,3,4-tetrazole-5-amino)-1,2,4,5-tetrazine）[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2013.20555.

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