Tribological Performance Of Hybrid Composites Based On Palm Oil Fibres And Alumina Powder Blend

Loh, Choon Yong (2018) Tribological Performance Of Hybrid Composites Based On Palm Oil Fibres And Alumina Powder Blend. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, the green technology is important and expected due to global warming threaten. The usage of agricultural waste product in industry manufacturing process is increased and more environmental friendly. The production of hybrid composites based on palm oil fibres from agriculture waste and alumina powder blend is considered as the substitution of materials which have large potential towards zero waste strategy as well as the composites can provide the better properties compared to one of material alone. The absent of hybrid composite which can provide high friction with low wear rate ability without using the lubricant is being focused due to low wear rate can extend the lifespan of tools. Thus, literature study on hybrid composites and applications has an enormous potential to explore the benefits of hybrid composites. The objectives of this project research were included the determination of the optimal composition ratio and investigation of tribological properties of hybrid composites based on palm oil fibres and alumina powder blend. The comparison of tribological properties in terms of coefficient of friction and specific wear rate is conducted in between hybrid composites and conventional composite, SK-2 carbon steel disc. The composition of specimen is focused in three categories such as 50 wt.%, 60 wt.% and 70 wt.% of composite reinforced with 50 wt.%, 40wt% and 30 wt.% of epoxy respectively. The physical-mechanical properties of specimen are determined using the physical testing and followed by carry out tribological testing using ball-on-disc tribometer where the testing parameters are set with 400rpm sliding speed, 49.05N applied load and 3000m sliding distance to investigate the tribological performance of hybrid composite. Then, the manual calculation is performed to determine the specific wear rate of specimens while the wear morphology of the specimens is studied through the optical micrographs of worn surface which is captured using 3D non-contact profilometer. The collected data were analysed through qualitative and quantitative approaches. From the study, the optimal composition ratio with 35 wt.% of palm oil fibres, 35 wt.% of alumina powder and 30 wt.% of epoxy is obtained for the hybrid composite with high friction and low wear rate in tribological properties.

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