1-氨基-2-硝基胍的热行为（英文）  

Thermal Behaviors of 1-Amino-2-nitroguanidine

作　　者：李彦峰[1] 王猛杰[1] 徐抗震[1] 宋纪蓉[1] 赵凤起[2] 

机构地区：[1]西北大学化工学院,陕西西安710069 [2]西安近代化学研究所,陕西西安710065

出　　处：《含能材料》2016年第9期848-852,共5页Chinese Journal of Energetic Materials

基　　金：the National Natural Science Foundation of China(21241003)

摘　　要：用差示扫描量热法(DSC),微量热仪和热重-微分热重分析(TG/DTG)研究了1-氨基-2-硝基胍(ANQ)的热分解行为、比热容和绝热至爆时间。结果表明,ANQ的热行为分为相连的两个剧烈放热分解过程。5℃·min-1下两个分解过程的峰温分别为192.5℃和196.2℃,总共的分解焓为-2075J·g^(-1)。第一分解阶段的表观活化能和指前因子分别为224.3kJ·mol^(-1)和1023.15 s^(-1)。自加速分解温度和热爆炸临界温度分别为184.5℃和192.7℃。298.15K时摩尔比热容为145.5J·mol^(-1)·K^(-1)。估算的绝热至爆时间约为60s,表明ANQ的热稳定性良好。To evaluate the thermal stability of 1-amino-2-nitroguanidine（ANQ） and investigate the potential application value of ANQ as energetic material, thermal behaviors, specific heat capacity and adiabatic time-to-explosion of ANQ were studied by DSC, micro-DSC and TG/DTG methods. Results show that thermal behavior of ANQ can be divided into two coterminous intense exothermic decomposition processes. The peak temper- atures of the two decomposition processes at the heating rate of 5 ℃· min^-1 are 192.5 ℃ and 196.2 ℃, respectively, and the whole decomposition enthalpy is -2075 J· g^-1. The apparent activation energy and pre-exponential constant of the first decomposition process are 224.3 kJ· mol^-1and 10^23.15s^-1 , respectively. The self-accelerating decomposition temperature and critical temperature of thermal explosion for ANQ are 184.5 ℃ and 192.7 ℃, respectively. The molar heat capacity of ANQ is 145.5 J·mol^-1·K^-1 at 298.15 K. Adiabatic time-to-explosion was estimated to be about 60 s. The thermal stability of ANQ is good.

关 键 词：含能材料 1-氨基-2-硝基胍(ANQ) 热行为 比热容 绝热至爆时间 

分 类 号：TQ560.1[化学工程—炸药化工]