CAJ | 학술논문

采用T-jump/FTIR对高氯酸碳酰肼合铅(PbCP)的高温快速热分解反应动力学进行研究,在300～340 ℃温度范围、0.1 MPa的氩气气氛下,由反应过程中铂丝的控制电压变化曲线得出剧烈放热峰的诱导出现时间tx,进而利用tx值计算出目标化合物的快速热分解动力学参数:Ea=70.68 kJ·mol-1,lnA=16.30.研究发现所求得的活化能大大低于采用Kissinger和Ozawa-Doyle法所得的结果,这一现象与其他含能材料的热分解具有很强的一致性.还通过4种主要气体产物在特定吸收剂中的吸收求出了其动力学参数.
채용T-jump/FTIR대고록산탄선정합연(PbCP)적고온쾌속열분해반응동역학진행연구,재300～340 ℃온도범위、0.1 MPa적아기기분하,유반응과정중박사적공제전압변화곡선득출극렬방열봉적유도출현시간tx,진이이용tx치계산출목표화합물적쾌속열분해동역학삼수:Ea=70.68 kJ·mol-1,lnA=16.30.연구발현소구득적활화능대대저우채용Kissinger화Ozawa-Doyle법소득적결과,저일현상여기타함능재료적열분해구유흔강적일치성.환통과4충주요기체산물재특정흡수제중적흡수구출료기동역학삼수.
The exothermic decomposition reaction kinetics of lead carbohydrazide perchlorate (PbCP) was determined by T-jump/FTIR spectroscopy at high temperatures following very rapid heating process. The time-to-exotherm (tx) values evolved from the control voltage traces of the Pt filament during the flash pyrolysis yielded the kinetic parameters in the 300-340 ℃ range at 0.1 MPa Ar atmosphere: Ea =70.68 kJ·mol-1,lnA =16.30. The activation energy determined was much smaller than that given previously by Kissinger and Ozawa-Doyle method, which also occurred with other energetic materials making these values qualitatively consistent. In addition, the decomposition kinetics of evolution of the major four individual gas products was resolved by the increase in specific absorbances, which might be essential for detailed combustion modeling of solid energetic materials.