Influence of Amine Compounds on Epoxy-Amine Reaction Mechanisms and Material Strength in Polymer Networks

Researcher(s)

  • Caroline Moore, Material Science, University of Delaware

Faculty Mentor(s)

  • Christopher Kloxin, Material Science and Engineering, University of Delaware
  • Jovan Tatar, Civil Enginnering, University of Delaware

Abstract

This study investigated the reaction mechanism and mechanical properties of epoxy and amine compounds in the process of polymer synthesis that leads to the formation of polymer networks. For this purpose, a single epoxy compound was reacted with various amine compounds. The different amines were studied with respect to their effects on the curing rates and mechanical properties of the formed polymer network. The pathways of reactions for the materials were analyzed through a combination of spectroscopic analysis and mechanical testing. The results indicate that the primary reaction occurs via a nucleophilic attack by the amine on the epoxy group, which subsequently forms a stable cross-linked polymer network. The choice of amine is shown to have a significant effect on performance, like having faster curing times or higher glass transition temperatures (Tg).  This research contributes to the advancement in the field of material science and the development of improved adhesives for a variety of industrial uses.  Further research into various amine compounds, diverse epoxy sources, reaction conditions, etc., should be taken in order to gain understanding and reach the full potential of epoxy-amine adhesives.