Kinetics and thermodynamics of thermal decomposition reaction of epoxy resin using ThermaKin model
In order to evaluate the fire hazard of epoxy resin,a methodology for analyzing the pyrolysis characteristic of epoxy resin cured with cardanol-based phenalkamine(EP-PAA)was detailed using ThermaKin modeling frame-work.First,through inverse modeling of thermogravimetric analysis(TGA)experimental results,the kinetics of thermal decomposition of EP-PAA was parameterized.Second,the heat capacities of condensed-phase components and the heat of reactions were obtained through inverse modeling of the differential scanning calorimetry(DSC)ex-perimental results to develop the comprehensive thermal decomposition mechanism.The findings of this work dem-onstrate that the mass loss curve of EP-PAA mainly appeares in the temperature range between 550-800 K,and the mass loss rate(MLR)curve has two peaks;the developed reaction model including two first-order endothermic reactions accurately captures the TGA and DSC experimental results.The reaction model is able to predict the ex-perimental final mass residue and MLR peaks within 5％and 8％,respectively,which further validates the accuracy and reliability of the developed reaction model.
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维普
