2010•Journal of Shaanxi University of Science & TechnologyRequires access

STUDY ON THE CURING KINETICS OF MODIFIED IMIDAZOLE/EPOXY E44 BY NON-ISOTHERMAL DSC METHOD

Yang Ming-zheng

Abstract

The curing reaction kinetics of modified imidazole/ epoxy E44 was studied by non-isothermal differential scanning calorimetry(DSC).DSC data were processed by Kissinger and Crane equation.The curing reaction kinetics parameters were obtained.The activation energy of curing system was 52 kJ/mol.Reaction order was 0.884 7.The best curing technics was 110 ℃ / 1 h+140 ℃ / 1 h + 210 ℃ / 2 h.The curing temperature of modified imidazole/epoxy resin systems have some degree of upgrading.The storage time has been increased and the stability of product has been improved.

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