Inorganic peroxide (IP) initiators are widely used as initiators in polymerization reactions. However, if IP initiators are in contact with water due to moisture or storage issues, they decompose and release large amounts of heat quickly that can cause severe fires and explosions. In this study, sodium persulfate and ammonium persulfate were selected to investigate the effects of water content on the thermal decomposition of IP initiators. Accelerating rate calorimetry (ARC) was used to quantitatively study the IP initiators reacting with different concentrations of water, and the thermal decomposition parameters were corrected to calculate the kinetic parameters. Thermokinetic models based on numerical simulations were implemented to evaluate the thermal hazard characteristics, with the time to maximum rate under adiabatic conditions and the self-accelerating decomposition temperature obtained. The results indicate that the effects of water on IP initiators must be taken into account during their production, transportation, and storage in order to prevent fires and explosions.

无机过氧化物（IP）引发剂被广泛用作聚合反应中的引发剂。但是，如果IP引发剂由于水分或存储问题而与水接触，它们会分解并迅速释放大量热量，这可能导致严重的火灾和爆炸。在这项研究中，选择过硫酸钠和过硫酸铵来研究水含量对IP引发剂热分解的影响。用加速量热法（ARC）定量研究了IP引发剂与不同浓度的水反应，并修正了热分解参数以计算动力学参数。实施了基于数值模拟的热动力学模型来评估热危害特性，在绝热条件下达到最大速率所需的时间和获得的自加速分解温度。结果表明，在IP引发剂的生产，运输和存储过程中，必须考虑水对IP引发剂的影响，以防止火灾和爆炸。