差示扫描量热法
放热反应
绝热过程
甲苯
化学
分解
热稳定性
活化能
热力学
热分解
技术
量热法
物理化学
分析化学(期刊)
有机化学
物理
电离层
天文
作者
Yang Zhao,Nengcheng Zhou,Min Hua,Xiuxia Guo,Wenxing Zhang,Hui-Chun Jiang,Xuhai Pan,Juncheng Jiang
标识
DOI:10.1080/00986445.2022.2126769
摘要
In this article, the thermal stability of tert-butyl perbenzoate (TBPB) mixed with different concentrations of toluene and p-tert-butylcatechol (TBC) was investigated. The exothermic onset temperature (T0), the heat of decomposition (ΔH), and the adiabatic temperature rise (ΔTad) of the samples were obtained by differential scanning calorimetry (DSC) and Phi-TEC II adiabatic calorimetry. The apparent activation energy (Ea) and the maximum reaction rate arrival time under adiabatic conditions were obtained by adiabatic kinetic calculations for 8 h (TD8) and 24 h (TD24). Based on Semenov’s theory, the self-accelerated decomposition temperature was calculated as a support for safe storage and transport. The results of DSC and Phi-TEC II showed that toluene was effective in reducing the thermal hazard during the decomposition of TBPB. The addition of TBC caused side reactions. The moderate addition of toluene and TBC improves the thermal stability of TBPB and can improve the safety of TBPB in industrial applications.
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