Preparation and characterization of bio-film composite based on high density polyethylene and oil palm trunk fiber

Abstract

The effect of oil palm trunk (OPT) natural fibers used as reinforcement in High density polyethylene on the mechanical, biodegradation and water absorption properties of polyethylene films were investigated. The composites were formulated and prepared using twin-screw extruder while the hot compression molding machine was used to prepare the bio-films. The results showed that the incorporation of OPT fiber into the film enhanced the tensile modulus of the matrix while the tensile strength and elasticity reduced. The Young’s modulus of the composites reached 4450 MPa at 20% OPT fiber load while tensile strength and elongation at break reached its lowest at 7.11 MPa and 2.13% respectively at the same fiber load. Water absorption and biodegradability of the composites improved when OPT fibers were added. The composite film with 20% fiber load showed the highest fungal growth.