Journal of Polymer & Composites Original Research Special issue
Evaluation of Mechanical Properties of Arecanut Fiber Reinforced Epoxy Composite
Abstract
This study investigates the mechanical performance of arecanut fiber-reinforced epoxy composites, aiming to evaluate their potential for sustainable industrial applications. Arecanut husk fibers, an agricultural waste product, were selected for their natural abundance and biodegradability. To enhance fiber-matrix bonding, the fibers were chemically treated with sodium hydroxide (NaOH), which effectively removes lignin, hemicellulose, and other impurities, improving surface roughness and interfacial adhesion. The treated fibers were then incorporated into an epoxy resin matrix at varying weight fractions of 30%, 35%, 40%, 45%, and 50% using the conventional hand lay-up method—a low-cost and accessible fabrication technique suitable for composite development. Mechanical characterization was conducted in accordance with ASTM standards: tensile strength (ASTM D638), flexural strength (ASTM D790), and impact strength (ASTM D256). Among all compositions, the composite with 40% fiber content demonstrated the best overall mechanical performance. It achieved a tensile strength of 48.7 MPa, flexural strength of 78.4 MPa, and impact strength of 4.3 J/cm². These values indicate a 35%–40% enhancement compared to the neat epoxy matrix, showcasing the reinforcing capability of arecanut fibers when optimally loaded. The results suggest that arecanut fiber-reinforced epoxy composites offer a viable and sustainable alternative to conventional synthetic composites. Their favorable strength-to-weight ratio, coupled with eco-friendly characteristics, makes them suitable for diverse applications in automotive interiors, lightweight aerospace components, marine panels, and structural elements in the construction industry. This study underscores the growing relevance of natural fiber composites in addressing sustainability challenges in material science.
Keywords
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