To reduce the fire and explosion accident of dicumyl peroxide (DCP) in experiment and production, the thermal hazards of DCP and 40% mass content DCP in ethyl benzene (40% DCP) have been studied by the differential scanning calorimeter (DSC) and the accelerating rate calorimeter (ARC) in this paper. DSC experiment showed that ethyl benzene has no effect on the characteristic parameters of thermal decomposition of DCP, such as the temperature of the exothermic peak (Tpeak) and the decomposition energy (Ea), and the thermal decomposition reaction of 40% DCP followed the one-step reaction principle. ARC experiment showed that with the increase of inertia factor (Φ), the measured initial decomposition temperature (Ton) would be higher and the caculated Ea and pre-exponential factor (A) would be greater. It was also proved that after modification of Φ, TD24 was relatively consistent near Ton, but different at higher temperatures. Fisher's correction method was used to verify the necessity of consistency between experimental conditions and prediction conditions.

中文翻译：

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热惯性因子对乙苯中40%质量含量DCP绝热分解的影响

为减少过氧化二异丙苯（DCP）在实验和生产过程中的火灾和爆炸事故，采用差示扫描量热仪（DSC）和分析仪研究了DCP和40%质量含量的乙苯（40%DCP）中的DCP的热危害。本文采用加速量热计 (ARC)。DSC实验表明乙苯对DCP的热分解特征参数如放热峰温度(Tpeak)和分解能(Ea)没有影响，40% DCP的热分解反应遵循-步反应原理。ARC实验表明，随着惯性因子（Φ）的增加，测得的初始分解温度（Ton）会更高，计算出的Ea和指前因子（A）会更大。也证明了经过修正Φ，TD24 在 Ton 附近相对一致，但在较高温度下不同。使用Fisher修正法验证实验条件与预测条件一致性的必要性。