Abstract
The thermal behaviors of azo-compounds have been a topic received extensive attention. This paper attempted to obtain the decomposition kinetics of 2,2′-azobis(2-methylpropionamidine) dihydrochloride (AIBA) by applying differential scanning calorimeter (DSC) experiments and slow cook-off test. Moreover, the thermal hazards parameters, such as self-accelerating decomposition temperature (SADT), time to maximum rate under adiabatic conditions (TMRad), time to conversion limit (TCL), were predicted. The results indicate that AIBA is a highly exothermic and hazardous substance, and the kinetic model including two-step parallel reaction paths, the n-order reaction and the autocatalytic reaction, is credible to evaluate the decomposition process of AIBA. Based on the kinetic model and fiberboard packaging, the simulated SADT of 50 kg drum and 25 kg box are 94 °C and 91 °C, respectively. The TMRad is 104.66 °C under 24 h, and 113.05 °C of 8 h.
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