A relationship between the glass transition temperature and the conversion degree in the curing reaction of the EPY~R epoxy system RAPID COMMUNICATION

摘要

There has been studied correlation between the glass transition temperature (T) and the conversion degree (a) in the cure reaction of the EPY~R epoxy system (applied for machine foun-dation chocks), following evaluation of both these parameters. Three model correlations of T_g =f(α) developed from DiBenedetto eauation by Pascault and Wiliams, by Oleinik and also by Hale were verified. It was proyed that the latter model best fits the experimental results T_g versus α obtained with the differential scanning calorimetry (DSC) method.