Effect of thermal and natural particles addition on the mechanical and physical properties of blend polymer

Abstract

Natural particles were mixed with polymer resin in this study. Walnut shells as a particles were used to create a composite material that was added to a binary polymer blend matrix, namely, epoxy/polyurethane (PU). Liquid PU was added to epoxy at a volume ratio of 15%. Furthermore, temperature (20 °C–50 °C) and the walnut shells particles (WSP) with volume fraction of (2.5%, 5%, 7.5% and 10%) were used to assess the mechanical and physical attributes of the material, hardness, impact strength and thermal conductivity. According to the findings, when temperatures were high, there was an increase in impact strength and a decrease in the hardness and thermal conductivity values. Meanwhile, an increase in the volume fraction of WSP caused an increase in hardness and impact strength and a decrease in thermal conductivity.