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Investigation on curing kinetics and thermal properties of epoxy resin cured with anhydride

Lei Xu

Abstract

Curing process,curing reaction kinetics parameters and thermal properties of epoxy resin cured with anhydride were investigated by DSC at different heating rates.And the heat resistance and the heat stability of the epoxy resin curing system were investigated by means of DMA and TGA respectively.The curing process of the curing system was determined.Apparent activation energy of the curing system was calculated using Kissinger and Ozawa formula and its average value is equal to 62.00 kJ /mol.Based on Crane formula,the reaction series is 0.92.Glass transition temperature(Tg) measured by DSC is 183 ℃,while 182 ℃ is for the DMA.The TGA curve shows that the initial decomposition temperature of curing system is 350 ℃.

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Available abstract

Key concepts: Materials science, Curing (chemistry), Epoxy, Activation energy, Thermal stability, Composite material, Kinetics, Glass transition