effect of foxtail millet biosilica on the mechanical behaviour of pineapple fiber reinforced epoxy composites

Author(s)	Dr. K Vijayarajan, Mr. Athin Arsuthi M, Mr. Dinesh M, Ms. Jayawarrshni S, Mr. Sanjith P
Country	India
Abstract	Natural fiber reinforced polymer composites have emerged as promising alternatives to conventional synthetic materials due to their environmental sustainability, low density, and cost-effectiveness. In this study, a hybrid composite was developed using pineapple fiber as reinforcement, epoxy resin as the matrix, and biosilica as a filler derived from agricultural waste. The biosilica content was maintained constant while varying the proportions of fiber and resin to evaluate its influence on mechanical properties. The composite was fabricated using the hand lay-up technique and tested for tensile, compressive, flexural, impact, and hardness properties. Results indicate that the incorporation of biosilica enhances interfacial bonding, improves load transfer efficiency, and significantly increases strength and hardness. The developed composite also exhibits improved energy absorption and structural stability. These findings demonstrate that biosilica-filled natural fiber composites are lightweight, eco-friendly, and suitable for automotive and structural applications.
Keywords	Natural Fiber Composite, Biosilica, Pineapple Fiber, Epoxy Resin, Mechanical Properties, Tensile Strength, Flexural Strength, Impact Strength, Hardness, Eco-friendly Materials
Field	Engineering
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-04-14

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