摘要
由OmniCal开发的差分加速量热仪是一种真正的绝热式量热仪,与其他热分析仪器相比,得到的数据不需要进行热容校正,可直接用于计算含能物质的动力学参数,为含能物质的安全评估提供可靠的理论依据.以二叔丁基过氧化物(DTBP)为例说明差分加速量热仪在研究物质热失控方面的应用,得到了DTBP放热分解反应的温度和压力随时间的变化曲线;通过分析得到DTBP的初始自加热温度、绝热温升、绝热压升、最大反应速率、最大反应速率温度、最大反应速率时间等热分解特性参数,并计算出DTBP分解反应的动力学参数表观活化能和指前因子.
T he differential accelerating rate calorimeter developed by OmniCal Company is a true adia‐batic calorimeter without thermal dilution .Compared with other thermal analysis instruments ,such as ac‐celerating rate calorimeter（ARC） ,the data obtained from the test can be applied to the calculation of kinet‐ic parameters of energetic materials without phi‐correction .This paper obtained the curves of temperature and pressure versus time of di‐tert‐butyl hydroperoxide（DTBP） as well as the characteristic parameters of initial self‐heating temperature ,adiabatic temperature rise ,adiabatic pressure rise ,the maximum rate ,tem‐perature to maximum rate ,time to maximum rate etc .T he activation energy and the pre‐exponential of ki‐netic parameters of decomposition reaction for DTBP were also calculated .
出处
《徐州工程学院学报（自然科学版）》
CAS
2015年第3期53-58,共6页
Journal of Xuzhou Institute of Technology(Natural Sciences Edition)
关键词
差分加速量热仪
热惰性
起始自加热温度
最大温升速率
最大温升速率时间
differential accelerating rate calorimeter
adiabatic,thermal dilution
initial self-heating temperature
the maximum rate
time to maximum rate
