Characterization and properties of Citronella Filler Filled Low Density Polyethylene/ Ethylene Propylene Diene Monomer

Abstract

Thermoplastic Elastomer (TPE) composite reinforced with cymbopogon nardus, (citronella filler, CF) was prepared via melt blending method using heated two roll mill at temperature 160°C, screw rotational speed at 40rpm for 12 min. TPE matrix is a blend of low density polyethylene (LDPE) and ethylenepropylene-diene monomer (EPDM) at a ratio of 70:30. The optimum fiber loading were investigated from by different phr which are 15, 30, 45 and 60 phr. The effect of coupling agent maleic anhydride (MA) on the TPE composite has been investigated. The result shown that, with increasing the citronella filler loading gradually increased the tensile strength and flexural strength for both compatibilized and uncompatibilized LDPE/EPDM-CF composite but lower on elongation at break.. Fourier transform–infrared spectroscope studies revealed that the addition of compatibilizing agent enhanced dispersion of filler in polymer matrix as an evidence of covalent bonding between citronella filler and compatibilizing agent.