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Dimensional Stability and Mechanical Properties of Wood Plastic Composites Produced from Sawdust of Anogeissus leiocarpus (Ayin) with Recycled Polyethylene Teraphthalate (PET) Chips | Abstract
Scholars Research Library

Scholars Research Library

European Journal of Applied Engineering and Scientific Research

Abstract

Dimensional Stability and Mechanical Properties of Wood Plastic Composites Produced from Sawdust of Anogeissus leiocarpus (Ayin) with Recycled Polyethylene Teraphthalate (PET) Chips

Author(s): KO Oladejo, TE Omoniyi

Wood Plastic Composite panels were produced using a locally fabricated extruding machine at a temperature of about 170°C-200°C. the Sawdust of Anogeissus leiocarpus(Ayin) and Recycled Polyethylene Teraphthalate (PET) Chips were mixed in the ratio 1:1 to 1:5 and densities of 770.58 kg/mm3, 888.65 kg/mm3, 1,114.71 kg/mm3, 1,117.58 and 1, 141.84 kg/mm3 respectively. The quantity of recycled polyethylene teraphthalate (PET) Chips and sawdust used in the panels production were later weighed as 10 g of wood, 90 g of plastic; 8 g of wood, 92 g of plastic; 6 g of wood, 94 g of plastic; 4 g of wood, 96 g of plastic and 2 g of wood, 98 g of plastic. The components were mixed and fed into the extruder where they were melted, blended and consolidated. The material was then extruded through a die into a mould of dimensions 3.2 mm × 12.7 mm × 125 mm, 12.7 mm × 12.7 mm × 25.4 mm based on ASTM D 790 and ASTM D 695 for both flexural modulus and compression tests. It was observed that the test sample with woodplastic ratio 1:5 had the highest Impact Strength, MOR and MOE values of 42.33 J/m2, 3.86 N/mm2 and 642.00 N/mm2 respectively. Panels produced from mixing ratio 1:5 had the lowest values of 0.00 and 1.10% for both water absorption and thickness swelling respectively, while the specific gravity and density for the panel with mixing ratio 1:1 is the lowest with values 0.77 and 770.58 kg/m3 respectively, after 2 days or 48 hours immersion test. Analysis of variance showed that there were significant differences (Pr < 0.05) in all the physical and strength properties tests.


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