Institute of Safety and Disaster Prevention Technology, Central Taiwan University of Science and Technology, 666, Buzih Rd, Beitun District, Taichung 40601, Taiwan, ROC.
J Hazard Mater. 2011 Sep 15;192(3):1427-36. doi: 10.1016/j.jhazmat.2011.06.059. Epub 2011 Jul 6.
Over the past 30 years, the field of thermal analysis of organic peroxides has become an important issue in chemical engineering departments, safety departments, and in companies working with polymerization, petrifaction process, and so on. The contributions of thermal analysis to the evaluation and prediction of the runaway reactions have been important for decreasing or preventing a hazard, such as fire or explosion accident. This study was carried out using differential scanning calorimetry (DSC) to evaluate the kinetic and safety parameters in isothermal and non-isothermal conditions, for instance, temperature of no return (T(NR)), self accelerating decomposition temperature (SADT), time to maximum rate (TMR), activation energy (E(a)), frequency factor (A), reaction order (n), and reaction heat (ΔH), in terms of the hazardous material of 1,1,-di-(tert-butylperoxy)-3,3,5-trimethylcyclohexane (TMCH) 88 mass%. On the basis of this study, we demonstrated that TMCH 88 mass% must be well controlled in the manufacturing process due to the unstable structure of O-O, which releases a great quantity of heat, higher than 1300 J/g under decomposition. Results of this study could contribute to the relevant plants adopting TMCH 88mass% in a process, in order to prevent a fire or explosion accident from happening.
在过去的 30 年中，有机过氧化物的热分析领域已成为化学工程部门、安全部门以及从事聚合、石化等工艺的公司关注的重要问题。热分析在评估和预测失控反应方面的贡献对于降低或预防危险（如火灾或爆炸事故）非常重要。本研究采用差示扫描量热法（DSC）在等温和非等温条件下评估动力学和安全参数，例如无回温温度（T（NR））、自加速分解温度（SADT）、最大速率时间（TMR）、活化能（E（a））、频率因子（A）、反应级数（n）和反应热（ΔH），以此评估 1,1-二-（叔丁基过氧）-3,3,5-三甲基环己烷（TMCH）88 质量%的危险物质。基于这项研究，我们证明由于 O-O 不稳定的结构会释放大量热量，在分解过程中释放的热量超过 1300 J/g，因此 TMCH 88 质量%必须在制造过程中得到严格控制。这项研究的结果可以帮助相关工厂在生产工艺中采用 TMCH 88 质量%，以防止火灾或爆炸事故的发生。
