Glass transition and viscoelastic behaviour of partially cured composites

摘要

For this study, two tests were conducted in order to investigate the cure monitoring of composite parts utilizing XMTM-49 (carbon/epoxy composite) as the specimen. The first test involved the use of a dynamic mechanical thermal analyzer to investigate the nature of the loss modulus while the second test incorporated a differential scanning calorimeter to evaluate the degree of cure of the composite. From the results of the research, it was found that the loss modulus is an extremely sensitive cure monitoring indicator for Composites beyond 70/100 cured.