Thermal Stability of Imidized Epoxy Blends Initiated by N-Benzylpyrazinium Hexafluoroantimonate Salt

Epoxy resins of bisphenol A (DGEBA) are extensively used as the structural adhesives in fiber composites for aircraft and also as the laminates in printed circuit boards or as the molding compounds for semiconductor encapsulations. However, epoxy resins, initiated by a curing agent, often become brittle due to the inherent properties, resulting from the high degree of cross-linking during the process of self-polymerization. Hence, modification of epoxy resins has been the subject of intensive interesting research. For this reason, the blends of DGEBA and epoxy resins with high thermal properties have been interesting field due to the potential improvement in thermal properties of DGEBA. The objective of this work is to study the effect of epoxy resin (EMPT) with high thermal properties on thermal stability of the DGEBA/EMPT system, initiated by cationic latent catalyst. The characterization of thermal stability for this system was monitored by thermogravimetric analysis (TGA).