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<p>This research examines the effects of hot water conditioning on mechanical, thermal conductivity, flammability, and water absorption behaviour of the epoxy based composites. Nanofibers was extracted from mango peel using the retting process, while jack fruit peel powder was utilized as filler materials. Both the fiber and filler were chemically treated using 3-Aminopropyltrimethoxysilane (silane coupling agent) to enhance the composites performance. The hot water conditioning was conducted at 50&#xa0;°C for 15&#xa0;days. The overall performance of the composites was noticeably affected by conditioning, with the hot water conditioned composites exhibiting slightly reduced mechanical values compared to the unaged ones. Among them, composite SP2 (containing 2 vol.% filler) had the maximum tensile strength (150&#xa0;MPa), flexural strength (156&#xa0;MPa), and impact strength (5.8&#xa0;J). Conversely, the unconditioned composite containing 4 vol. % filler (SP3) exhibited the highest thermal conductivity (0.391 W/mK) and surface hardness value of 87 Shore-D.Hot water conditioned composite (SP6) showed the highest water absorption (6.2%) and the slowest flame propagation speed (7.86&#xa0;mm/min). The failure mechanisms and surface morphology of the composites were analysed using scanning electron microscopy (SEM).These epoxy-based composites, reinforced with agro-waste fibers and fillers, with their improved mechanical, thermal, and flame-retardant properties, are suitable for applications in lightweight structural components, interior panels, thermal insulation, water-resistant construction materials, and other eco-friendly consumer goods.</p>

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Fabrication and Performance Assessment of Hot Water Conditioned Epoxy Composites Reinforced With Modified Mango Peel Nanofibers and Jackfruit Peel Powder

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • Manoj Kumar S,
  • Mahendran G,
  • Kaliappan S,
  • Natrayan L,
  • Mohamed Abbas S

摘要

This research examines the effects of hot water conditioning on mechanical, thermal conductivity, flammability, and water absorption behaviour of the epoxy based composites. Nanofibers was extracted from mango peel using the retting process, while jack fruit peel powder was utilized as filler materials. Both the fiber and filler were chemically treated using 3-Aminopropyltrimethoxysilane (silane coupling agent) to enhance the composites performance. The hot water conditioning was conducted at 50 °C for 15 days. The overall performance of the composites was noticeably affected by conditioning, with the hot water conditioned composites exhibiting slightly reduced mechanical values compared to the unaged ones. Among them, composite SP2 (containing 2 vol.% filler) had the maximum tensile strength (150 MPa), flexural strength (156 MPa), and impact strength (5.8 J). Conversely, the unconditioned composite containing 4 vol. % filler (SP3) exhibited the highest thermal conductivity (0.391 W/mK) and surface hardness value of 87 Shore-D.Hot water conditioned composite (SP6) showed the highest water absorption (6.2%) and the slowest flame propagation speed (7.86 mm/min). The failure mechanisms and surface morphology of the composites were analysed using scanning electron microscopy (SEM).These epoxy-based composites, reinforced with agro-waste fibers and fillers, with their improved mechanical, thermal, and flame-retardant properties, are suitable for applications in lightweight structural components, interior panels, thermal insulation, water-resistant construction materials, and other eco-friendly consumer goods.