The Effect Of Alkaline Treatment On The Mechanical And Physical Properties Of Kenaf Fibre Reinforced Vinyl Ester Composites

Jamadi, Aida Haryati (2019) The Effect Of Alkaline Treatment On The Mechanical And Physical Properties Of Kenaf Fibre Reinforced Vinyl Ester Composites. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Natural fibre nowadays having a high demand in any application development. The purpose in usage natural fibre in worldwide application is one of alternative way in order to replace the manufacturing using synthetic fibre. Natural fibres have many advantages including having low cost and easy to process. Next, the greenhouse effect, pollution percentages that occur and health hazard of human, flora and fauna should be reconsidering in any production requirement and become the main reasons natural fibre demand is rising dramatically. Despite that, the terms of polymer matric composites or known as PMCs, using natural fibre as reinforce agent are trending in aeronautic nor automotive industries. Hence, this research is focusing on the effect of chemical treatment kenaf fibre reinforced vinyl ester composites. As the experiment is done, the result data show that treated natural fibre have well in strength, modulus and also physical properties such as water absorption. From flexural experiment data by comparing with untreated, the strength of treated natural fibre improve at 55.46% while for modulus increase at 83.87%. Other than that, the strength distribution of fibre also has a good improvement after conduct tensile test and giving tensile stress of treated is better compared with untreated composites with increasing around 10.93%. For water absorption, the result shows that the treated kenaf fibre can resist water better than untreated one. The surface modification towards natural fibre using alkaline treatment really prove that it has good result compared to untreated natural fibre in terms of enhancement mechanical interlocking between natural fibre and matrix and reduction of chemical content of natural fibre that can reduce the natural characteristic which is hydrophilic.

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