Preliminary Investigation of Unsaturated Polyester/Jute Fibre (UPE/JT) Composites: Effects of Fabrication Methods and Fibre Orientations
DOI:
https://doi.org/10.56532/mjsat.v5i3.516Keywords:
Unsaturated Polyester, Jute Fibre, Vacuum Resin Infusion, Compression Moulding, Tensile PropertiesAbstract
This study focuses on the development of unsaturated polyester (UPE)/ jute fibre (JT) composites using two fabrication methods such as vacuum resin infusion and compression moulding. The effects of different JT fibre orientations (randomly oriented, 0°, and 90°) on UPE composite properties were investigated. The results indicate that UPE/JT composites fabricated via vacuum resin infusion exhibit higher tensile strength, elongation, and Young’s modulus compared to those produced by compression moulding. In terms of fibre orientation, 0° oriented UPE/JT composites produced via vacuum resin infusion showed the highest tensile strength (92.4 MPa), elongation at break (12.3%), and Young’s modulus (3654 MPa) when compared to both randomly oriented and 90° oriented composites, as well as all specimens fabricated through compression moulding. This improvement is attributed to better fibre impregnation achieved through vacuum resin infusion and the load bearing capacity of 0° oriented JT fibres, which effectively transfer stress between the fibre and matrix, enabling joint load-bearing by JT fibre and UPE matrix during the tensile test.
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Copyright (c) 2025 Kishore Rao A/L Bapu Naidu , Ming Yeng Chan, Seong Chun Koay, Shuh Huey Ho
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