Additive manufacturing of epoxy resin matrix reinforced with magnetic particles

Abstract

In this research, polymer composites of epoxy resin matrix with magnetite particles were fabricated by additive manufacturing using the direct ink writing (DIW) technique. Four different formulations of epoxy resin-magnetite powders were fabricated, from which only one showed promising results regarding the dimensional stability and finishing of the printed samples. Four formulations were found to be feasible for the printing process, in which epoxy resin was varied from 32.6 to 41 wt%, while the magnetite powder changed from 67.4 to 69 wt% correspondingly. Compression tests were performed over all printed parts, compressive strength mean values and ductility results are presented. In addition, microstructural characterization was performed by scanning electron microscopy (SEM).