Abstract The thermal decomposition characteristics and the thermal safety parameters of 2,2-di(tert-butylperoxy)butane (DBPB) was investigated by differential scanning calorimetry (DSC). The apparent activation energy (Ea) was evaluated by three different kinetic analysis methods based on the DSC experimental results. By the method of Malek, Zhuravlev-Lesokhin-Tempelman (Z-L-T) equation was the most probable mechanism function of DBPB decomposition. Furthermore, for the safety of storage and transportation, the self-accelerating decomposition temperature (SADT) of 50 kg standard packaged 50% w.t. DBPB solution was calculated by Semenov model. And the decomposition products were separated and identified by gas chromatograph/mass spectrometer (GC/MS). The decomposition process of DBPB was inferred which may help us to interpret the decomposition mechanism of di-functional peroxides. Finally, the findings of this study could do a contribution to preventing the thermal hazardous accidents, which would happen during DBPB chemical process, transportation and storage.

中文翻译：

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DSC和GC/MS在非等温条件下对2,2-二(叔丁基过氧化)丁烷进行热分解分析

摘要 采用差示扫描量热法(DSC)研究了2,2-二(叔丁基过氧化)丁烷(DBPB)的热分解特性和热安全参数。基于DSC实验结果，通过三种不同的动力学分析方法评估表观活化能(Ea)。根据Malek的方法，Zhuravlev-Lesokhin-Tempelman(ZLT)方程是DBPB分解最可能的机制函数。此外，为了储存和运输的安全，采用Semenov模型计算了50kg标准包装的50%wt DBPB溶液的自加速分解温度（SADT）。分解产物经气相色谱/质谱(GC/MS)分离鉴定。推测了 DBPB 的分解过程，有助于解释双官能过氧化物的分解机理。最后，本研究的结果有助于预防在 DBPB 化工过程、运输和储存过程中发生的热危险事故。