Influence of cure conditions on glass transition temperature and density of an epoxy resin

Abstract The glass transition temperature T g and density of a TGDDM‐DDS epoxy resin system were studied as a function of cure times at various cure temperatures. Both T g and density asymptotically increased toward a maximum value with increasing cure time. The T g and density measurements were related to the extent of cure, and the relationship in both cases was found to be independent of cure temperature.