The effect of palm oil fuel ash (POFA) and polyvinyl alcohol (PVA) on the physico‑mechanical, thermal and morphological properties of hybrid bio‑composites

Md. Rezaur, Rahman and Sinin, Hamdan and Elammaran, Jayamani and Akshay, Kakar and Muhammad Khusairy, Bakri and Fahmi Asyadi, Md Yusof (2020) The effect of palm oil fuel ash (POFA) and polyvinyl alcohol (PVA) on the physico‑mechanical, thermal and morphological properties of hybrid bio‑composites. Polymer Bulletin, 77. pp. 3523-3535. ISSN 1436-2449

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Abstract

This study focuses on the effects of palm oil fuel ash (POFA) and polyvinyl alcohol (PVA) on the physico-mechanical, thermal and morphological properties of kenaf-/ jute-reinforced polyvinyl alcohol (PVA)/polyethylene (PE) hybrid bio-composites. The fibers were dried in an oven and mixed with PE and PVA at different fiber loadings, respectively (5 wt%, 10 wt%, 15 wt% and 20 wt%). The samples were prepared and tested according to ASTM standards. The scanning electron microscope shows that PVA reduces the agglomeration and increases the bonding between fiber and matrix. Jute/kenaf—PE/PVA composites (JKPEPVAC), show a higher tensile strength and Young’s modulus compared to jute/kenaf—PE composites (JKPEC), and jute/kenaf—PE/POFA composites (JKPEPOFAC). The composites have better compatibility between fiber, matrix and the PVA composite, which shows desirable properties and performances. TGA and DSC analysis confirms that the JKPEPOFAC has a higher thermal decomposition and activation energy and more thermal stability than JKPEC and JKPEPVAC.

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