间氯过氧化苯甲酸热分解动力学及危险性

发布时间：2018-03-03 03:09

  本文选题：间氯过氧化苯甲酸(m-CPBA)　切入点：热分解　出处：《中国安全科学学报》2017年07期 　论文类型：期刊论文

【摘要】：为研究固态间氯过氧化苯甲酸(m-CPBA)在非等温和绝热条件下的热分解过程及其危险性,分别采用差示扫描量热仪(DSC)和绝热加速量热仪(ARC)试验研究m-CPBA的热分解特征。通过热重分析仪(TG)测量m-CPBA的初始分解温度,用Kissinger法、Ozawa法和速率常数法计算活化能、指前因子和反应级数等热分解反应动力学参数,并根据绝热试验结果推算最大反应速率到达时间(TMR_(ad))。结果表明:m-CPBA的初始分解温度为94℃,且在熔融相变的同时发生热分解放热反应;其绝热温升为41.69℃,TMRad在8和24 h所对应的绝热温度分别为54.7℃和50.9℃;因此,m-CPBA在贮存、运输和使用过程中需要严格控制温度。
[Abstract]:In order to study the thermal decomposition process and its risk of solid m-CPBA under non-isothermal adiabatic conditions. The thermal decomposition characteristics of m-CPBA were studied by differential scanning calorimeter (DSC) and adiabatic accelerated calorimeter (ARC) respectively. The initial decomposition temperature of m-CPBA was measured by thermogravimetric analyzer (TG), and the activation energy was calculated by Kissinger method and rate constant method. The kinetic parameters of thermal decomposition reaction, such as preexponential factor and reaction order, are calculated according to the adiabatic test results, and the maximum reaction rate arrival time is calculated. The results show that the initial decomposition temperature of 10% m-CPBA is 94 鈩，

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