Attempts to enhance the properties of EPON 830-methylene dianaline epoxy resin systems by exposure to magnetic fields during thermal curing

Abstract

This effort's objective was to determine whether enhancements to the properties of fully conventionally cured epoxy resin systems (ERSs) consisting of EPON 830, a diglycidylether of bisphenyl A epoxy resin, and methylene dianaline could be found by thermally curing the resins while simultaneously exposing them to economically generated magnetic fields (MFs). Stoichiometric mixes were thermally cured with one of the following profiles: 5 at 121°C or 4 h at 149°C. While being thermally cured, they were also exposed to MFs of strengths between 0.1290 and 0.8810 Tesla. Exposed and control specimens were simultaneously generated from the same ERS mix in each run. The resulting specimens were mechanically and thermally tested. This effort determined that under these conditions there were no modifications to the properties of MF-exposed, fully thermally cured, ERSs relative to their associated controls. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 2539–2568, 1998