2011•China PlasticsRequires access

Curing Kinetics of Studying on Modified Bismaleimide and Cyanate Ester System with Different Epoxy Resins by Non-isothermal Method

Yang Jiang

Abstract

The cure kinetics of epoxy resin(AG-80 and TDE-85) modified bismaleimide/cyanate ester(BMI/CE) system was investigated at different heating rates,using non-isothermal differential scanning calorimetry(DSC).The curing kinetics parameters of the system were obtained by Kissinger,Ozawa equation,and Crane′s theory.For epoxy resin(AG-80) modified system,the average activation energy was 81.55 kJ/mol,and the reaction order was 0.93.For epoxy resin(TDE-85) modified system,the average activation energy was 69.25 kJ/mol,and the reaction order was 0.92. Compared to epoxy resin(AG-80) modified system,the results indicated that the addition of epoxy resin(TDE-85) could lower the activation energy of the modified system and the curing reaction could occur at a relative low temperature.

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Key concepts: Cyanate ester, Epoxy, Curing (chemistry), Materials science, Activation energy, Differential scanning calorimetry, Isothermal process, Kinetics