Recycled-copper-filled epoxy composites: The effect of mixed particle size

Abstract

Background: The effect of mixed size of recycled-copper-filled epoxy composites on mechanical, electrical, thermal and physical properties was investigated. Methods: The recycled copper was collected as a waste from the milling machine. The recycledcopper-filled epoxy composite was mixed using a mechanical stirrer. Results: The effect of volume fraction of recycled copper of the epoxy composites were studied based on the flexural properties, coefficient of thermal analysis (CTE), electrical conductivity, hardness and density. Conclusions: The incorporation of recycled copper has decreased the CTE of the composites. The flexural properties, electrical conductivity, hardness and density of the composites increased with increasing volume fraction and filler loading.