An Investigation on Wear, Hardness and Impact Behaviour of Hybrid Composites

Abstract

According to the environmental aspects, the combinations of natural and synthetic fibers has been used for making eco-friendly products. The present investigation has been made develop and characterize a new class of composites with a polymer called epoxy-resin as the matrix and Hemp and synthetic fibers (Carbon, E-glass, Kevlar) are the reinforcing material. These materials are fabricated using hand layup technique to frame a fallowing hybrid composite, 1) Hemp/Carbon/Epoxy 2) Hemp/E-glass/Epoxy 3) Hemp/Kevlar/epoxy composites of 3mm thickness to find the various mechanical properties (wear, hardness and impact strength) of produced samples as per ASTM Standards. For defining relative significance of measured norms pairwise comparison was done. Wear, Hardness and Impact properties are carried out. The effect of fiber loading and length on mechanical properties like wear, hardness and impact strength of composites is studied. In these fallowing conditions shows a better property. The result on this study indicated that Hemp/Kevlar/Epoxy composite shows better impact mechanical properties compare to another two hybrid composites. Hemp/E-Glass/Epoxy composite shows better wear and hardness properties compare to another two hybrid composites. Hemp/Carbon/Epoxy composite shows intermediate properties compare to Hemp/E-Glass/Epoxy and Hemp/Kevlar/Epoxy composite. Keywords: Hemp, Carbon, Glass, Kevlar, Epoxy, Wear, Hardness, Impact test