A double-parameter theoretical model for the conduction calorimeter, in which the delay of sensing has been considered, is suggested, and a simple method for the determination of the parameters of the model is propose...A double-parameter theoretical model for the conduction calorimeter, in which the delay of sensing has been considered, is suggested, and a simple method for the determination of the parameters of the model is proposed. The experimental results show that on the basis of this model, the phenomenon of thermogram maximum in thermogram reconstruction can be eliminated, and it can be applied to the thermokinetic investigations of faster thermal change processes.展开更多
利用动态差示扫描量热(DSC)实验初步研究了硝基胍的热分解特性,采用Kissinger和Ozawa法计算了其热分解活化能。运用中断回归实验研究了热履历对硝基胍热分解安全性的影响,并用等温DSC实验进行了验证。利用绝热量热仪(ARC)研究了硝基胍...利用动态差示扫描量热(DSC)实验初步研究了硝基胍的热分解特性,采用Kissinger和Ozawa法计算了其热分解活化能。运用中断回归实验研究了热履历对硝基胍热分解安全性的影响,并用等温DSC实验进行了验证。利用绝热量热仪(ARC)研究了硝基胍的绝热安全性,得到了其初始分解温度,温升速率。结果表明,硝基胍是熔融分解型含能材料,其热分解为自催化反应。热履历显著影响了硝基胍的热分解安全性,降低了其起始分解温度和峰温,使其在固态时就达到较高的热分解速率。在动态DSC实验中,其起始反应温度213.8~249.9℃,峰温215.0~255.2℃,表观活化能为111.6 k J·mol^(-1)和114.2 k J·mol^(-1)。在绝热实验中,其起始反应温度为170.6℃,最大温升速率为1.414℃·min^(-1)。展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘A double-parameter theoretical model for the conduction calorimeter, in which the delay of sensing has been considered, is suggested, and a simple method for the determination of the parameters of the model is proposed. The experimental results show that on the basis of this model, the phenomenon of thermogram maximum in thermogram reconstruction can be eliminated, and it can be applied to the thermokinetic investigations of faster thermal change processes.
文摘利用动态差示扫描量热(DSC)实验初步研究了硝基胍的热分解特性,采用Kissinger和Ozawa法计算了其热分解活化能。运用中断回归实验研究了热履历对硝基胍热分解安全性的影响,并用等温DSC实验进行了验证。利用绝热量热仪(ARC)研究了硝基胍的绝热安全性,得到了其初始分解温度,温升速率。结果表明,硝基胍是熔融分解型含能材料,其热分解为自催化反应。热履历显著影响了硝基胍的热分解安全性,降低了其起始分解温度和峰温,使其在固态时就达到较高的热分解速率。在动态DSC实验中,其起始反应温度213.8~249.9℃,峰温215.0~255.2℃,表观活化能为111.6 k J·mol^(-1)和114.2 k J·mol^(-1)。在绝热实验中,其起始反应温度为170.6℃,最大温升速率为1.414℃·min^(-1)。
基金supported by the National Natural Science Foundation of China (20373072)Construct Program of the Key Discipline in Hunan Province,China (Applied Chemistry)~~