TTT isothermal cure diagram of a dyglicidyl ether of bisphenol A/1,3-bisaminomethylcyclohexane (DGEBA/1,3-BAC) epoxy resin system

✍ Scribed by L. Barral; J. Cano; A. J. López; J. López; P. Nogueira; C. Ramírez

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 492 KB
• Volume: 61
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19960829)61:9<1553::aid-app14>3.0.co;2-r

✦ Synopsis

The isothermal cure of an epoxy-cycloaliphatic amine system has been studied following the evolution of both glass transition temperature and conversion. A functional relationship between T, and conversion is established. The cure reaction is satisfactorily described by a phenomenological model with parameters determined from DSC experiments. By applying the kinetic model, gelation and vitrification curves are calculated and compared with experimental times to gelation and times to vitrification determined a t temperatures between 50 and 100°C. The isothermal time-temperature-transformation (TTT) curing diagram including iso-T, contours has been established.