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<p>This research investigates epoxy composites reinforced with KOH treated pineapple fiber (40 vol%) and chitin (1–5 vol%) focussing on their mechanical, tribological and water absorption properties. Composites were fabricated via hand lay-up followed by post curing at 120&#xa0;°C. Incorporation of the reinforcements significantly enhanced the composite performance, with the 40 vol% pineapple fiber and 3 vol% chitin reinforced composite demonstrating the best overall properties including high tensile and flexural strength, improved impact resistance, increased hardness and superior wear resistance while maintaining moderate water absorption. These enhancements are attributed to the strong interfacial bonding and uniform dispersion achieved through KOH treatment. The results indicate that carefully optimized KOH treated fiber-filler reinforced epoxy composites exhibit balanced mechanical and tribological performance making them promising candidates for lightweight structural components, automotive panels and other load bearing applications.</p> Graphical abstract <p></p>

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Property assessment of epoxy composites containing KOH-treated chitin and pineapple fibre reinforcement

  • 期刊论文

  • 发表日期：

    2026年3月9日

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  • D. Pratibha,
  • C Sravanthi,
  • Sreeram Reddy Gundeti,
  • Navya Sree Seelam,
  • A. Neeraja

摘要

This research investigates epoxy composites reinforced with KOH treated pineapple fiber (40 vol%) and chitin (1–5 vol%) focussing on their mechanical, tribological and water absorption properties. Composites were fabricated via hand lay-up followed by post curing at 120 °C. Incorporation of the reinforcements significantly enhanced the composite performance, with the 40 vol% pineapple fiber and 3 vol% chitin reinforced composite demonstrating the best overall properties including high tensile and flexural strength, improved impact resistance, increased hardness and superior wear resistance while maintaining moderate water absorption. These enhancements are attributed to the strong interfacial bonding and uniform dispersion achieved through KOH treatment. The results indicate that carefully optimized KOH treated fiber-filler reinforced epoxy composites exhibit balanced mechanical and tribological performance making them promising candidates for lightweight structural components, automotive panels and other load bearing applications.

Graphical abstract