Mechanical Properties Of Wood Plastic Composite Made Of Recycled Polypropylene And Recycled Wood Flour

Dayang Kartikasari, Abang Abdullah (2009) Mechanical Properties Of Wood Plastic Composite Made Of Recycled Polypropylene And Recycled Wood Flour. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This research investigated the stability, mechanical properties, and the surface microsgraphs of wood–plastic composites (WPCs), which were made by combining the recycled Polypropylene (rPP) together with waste wood four. Virgin Polypropylene (vPP) will also be used as control sample for the comparison purposes. The rPP were obtained from the 3 in 1 drink wrappers. WPCs panel are fabricated by using a singlescrew extruder and compression moulding machine. The test of the resulted composites based with different ratio of the filler content, 0%, 30% and 40% were carried out by using the Universal Testing Machine (UTM). Composite panels made from rPP and recycled wood flour (rWF) exhibits lower tensile and flexural properties compared than vPP-WF composite panel. Microstructural analysis of the WPCs’ microstructure surfaces was further investigated. The experiment results showed that the tensile and flexure modulus are increased with the increasing of WF. The results are contradictory for the tensile and flexural strength as their value decreased with the increasing of WF percentage of addition. The composite panel also went through water immersion test for 24 hours and the composites made of rPP-WF exhibits better results than composites made of vPP-WF. As a conclusion, the unsuccessful objective in proving the rPP-wf composites have better mechanical properties than the virgin PP-WF composites are due to the difficulties and improper ways of processing the rPP-WF, and also due to the voids and impurities exists in the recycled material composites.

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