Impact Strength of HDPE Composites Roofing Panel from Natural Fibre

Abstract

Residues from agricultural waste has increased in demands due to its useful products. This paper will focused on the density and type of fibres effects on roofing panel strength made from natural fibre reinforced HDPE. Natural fibre reinforced HDPE with three different types at different ratios for each composite were prepared in laboratory. Dynatup 9250HV was used to test impact strength of the composite. The impact strength of all composite boards was determined based on the Energy (J) value. Both the density and types of natural fibre have significantly affected the impact strength. Bamboo fibre gave the best impact properties compared to coconut coir and kenaf. There is only slightly difference between impact strength value for bamboo and kenaf which is in the range of 2.76MPa to 3.82MPa. Ratios at fourty (40) gave higher density value and results in better impact strength. In general, there is significantly difference between the ratios among the fibres.