Novel, high performance latent co-curing agent based on amine adducts for epoxy/DICY one-pot system

In this study different novel, high performance latent co-curing agents based on alkanolamine adducts have been developed for Epoxy/DICY one-pot system. DSC results showed alkanolamine-based adductsreduced epoxy/DICY curing peak temperature prominently while their adverse effects on the storage life were negligible. The number of nitrogen atoms in molecular structure and the bulkiness of the alkanolamine determined the effectiveness of adducts. The more nitrogen atoms in alkanolamine structure made adduct more active at evaluated temperatures. While in the same number of nitrogen atoms, the bulkiness became more determinative. Moreover, glass transition temperatures of DICY/adduct cured epoxy werehigher than DICY cured epoxy system.

Keywords:

Latent co-curing agent , alkanolamine , one-pot epoxy system , DSC , Storage life