Influence of microwave power on mechanical properties of microwave-cured polyethylene/coir composites

The present work deals with investigating the influence of microwave power on mechanical properties of 20 wt.% coir reinforced high-density polyethylene (HDPE) composites. Chopped coir/HDPE composites were fabricated using various microwave power levels (360 W, 540 W, 720 W and 900 W). The XRD analysis of the specimens reveals that crystallinity index in various specimens was in the range of 79.54% to 84.59%. The specimen cured at 360 W exhibited a maximum tensile strength of 29.5 +/- 1.5 MPa, which is 28.26% greater than composite cured at 900 W (23 +/- 1.5 MPa). Flexural strength of specimen cured at 360 W was maximum (37.74 +/- 2 MPa).