Abstract
Natural fibre composites have garnered a large following in the recent years due to their low density, commercially viability, no health risk, high specific strength and modulus and renewability. There have been many attempts to use the NFRC in automotive and other practical applications. This article discusses the mechanical properties mainly the tensile flexural and Izod impact strength of a recently developed kenaf-reinforced bulk moulding compound with unsaturated polyester matrix. It has been found that the tensile and flexural properties decline after the optimum fibre loading of 20% has been achieved for all fibre length. The highest was the BMC reinforced with 12-mm kenaf short fibre with 31.71 MPa and 15 mm with 266.21 MPa for tensile and flexural strength, respectively. It has also been found that the impact strength increases proportionally to the loading of the fibre due to the fibre being the stress transferring medium. It can be concluded that both fibre loading and fibre length plays a significant part in the mechanical properties of composites.
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