Analysis of Bending and Tensile Strength of Kenaf Fiber Reinforced Composites with Variations in Fiber Length 1 cm–5 cm
Analisis Kekuatan Bending dan Tarik pada Komposit Diperkuat Serat Kenaf dengan Variasi Panjang Serat 1 Cm–5 Cm
DOI:
https://doi.org/10.21070/ups.11076Keywords:
Composite, kenaf fiber, bending testAbstract
This study was conducted to determine the effect of varying kenaf fiber length on the bending and tensile strength of a polyester resin-matrix composite material. Kenaf fiber (Hibiscus cannabinus L.) was used as the reinforcing material, varying in lengths of 1 cm, 2 cm, 3 cm, 4 cm, and 5 cm. The composite was fabricated using the hand lay-up method, using a mixture of polyester resin and mexpo catalyst as the binding matrix. Prior to fabrication, the fibers were soaked in a 5% NaOH solution for 2 hours as an alkali treatment to improve adhesion between the fibers and the matrix. Mechanical testing included bending tests based on ASTM International standard ASTM D790 and tensile tests based on ASTM D3039. The results showed that varying fiber lengths affected the mechanical characteristics of the composite
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