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The present study focused on the mechanical and water uptake behavior of composite materials made by natural fibers, epoxy resin, and natural nanoparticles. This study uses hemp and flax fibers with epoxy and with the addition of walnut shell powder and coconut shell powder as nanofillers. Hemp-reinforced nanocomposites absorbed more water as compared to other prepared specimens. Hemp-reinforced composites had the lowest value of surface roughness (Ra). The flax/epoxy composite specimen had the highest value of mechanical characteristics (tensile strength, Young’s modulus, and elongation at break) of 22.61 MPa, 2.0268 GPa, and 1.126 GPa, respectively. The flexural strength of the flax/epoxy/walnut shell was the highest at 52.87 MPa among all other composites. Flax fiber-reinforced composite has better mechanical strength, and the addition of walnut shell powder to flax/epoxy composites achieved maximum mechanical performance.

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Studies on Mechanical Behavior and Water Uptake Analysis of Composites Reinforced with Natural Fibers and Natural Nano Fillers

  • 会议论文

  • 发表日期：

    2026年

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  • V. A. Elenjeral,
  • Abhinash Rout,
  • Vijay Chaudhary,
  • Tarun Kumar Gupta,
  • Chanchal Ahlawat

摘要

The present study focused on the mechanical and water uptake behavior of composite materials made by natural fibers, epoxy resin, and natural nanoparticles. This study uses hemp and flax fibers with epoxy and with the addition of walnut shell powder and coconut shell powder as nanofillers. Hemp-reinforced nanocomposites absorbed more water as compared to other prepared specimens. Hemp-reinforced composites had the lowest value of surface roughness (Ra). The flax/epoxy composite specimen had the highest value of mechanical characteristics (tensile strength, Young’s modulus, and elongation at break) of 22.61 MPa, 2.0268 GPa, and 1.126 GPa, respectively. The flexural strength of the flax/epoxy/walnut shell was the highest at 52.87 MPa among all other composites. Flax fiber-reinforced composite has better mechanical strength, and the addition of walnut shell powder to flax/epoxy composites achieved maximum mechanical performance.