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<p>Pineapple Leaf Fibre (PF) is a highly promising natural reinforcing material for polymer composites, potentially substituting ramie fibre due to its equivalent characteristics. Objective of using nanofiller at polymer composites were improve their mechanical characteristics. Theoretically, integration of high-strength and high-stiffness nanofiller, specifically reduced graphene oxide (rGO), should yield enhanced composite characteristics. The primary obstacles in integrating this nanofiller are its inadequate aggregation and dispersion within epoxy, attributable to its elevated the robust Van der Waals forces and surface area between rGO layers. This research employed an effective functionalization approach to promote the dispersion of rGO and introduced zinc oxide filler to improve the shear mechanism of platelets. The highly dispersive zinc nanospheres were incorporated into the tactoid shape of stacked rGO nanosheets to generate significant shear pressures during milling and facilitate the exfoliation of rGO. Hybrid nanofiller-altered epoxy polymers was infused at PF assess mechanical charcteristics of PFRP system by compression, drop-weight, tensile, flexural, and impact tests. The synergistic effect of zero-dimensional zinc oxide and two-dimensional rGO nanoplatelets improved the mechanical properties of PFRP, particularly in Pineapple Leaf Fibre + 1 wt% rGO/14 wt% ZnO (PF-H 1), which exhibited the greatest increase in modulus and strength compared to unmodified PF. The findings indicated that inclusion of hybrid nanofiller enhanced mechanical characteristics of composite. PF possesses significant promise as a substitute for synthetic ramie fiber in the production of mechanical components and structures.</p>

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Synergistic effect of reduced graphene oxide and zinc oxide nanofillers on the mechanical behavior of pineapple leaf fibre–epoxy composites

  • 期刊论文

  • 发表日期：

    2026年4月29日

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  • Sanjana Singh,
  • Ankit Gupta,
  • Vikas Gupta,
  • Shailendra Kumar Yadav,
  • Jeevakarunya C,
  • Mani Mahesh,
  • Geetha K

摘要

Pineapple Leaf Fibre (PF) is a highly promising natural reinforcing material for polymer composites, potentially substituting ramie fibre due to its equivalent characteristics. Objective of using nanofiller at polymer composites were improve their mechanical characteristics. Theoretically, integration of high-strength and high-stiffness nanofiller, specifically reduced graphene oxide (rGO), should yield enhanced composite characteristics. The primary obstacles in integrating this nanofiller are its inadequate aggregation and dispersion within epoxy, attributable to its elevated the robust Van der Waals forces and surface area between rGO layers. This research employed an effective functionalization approach to promote the dispersion of rGO and introduced zinc oxide filler to improve the shear mechanism of platelets. The highly dispersive zinc nanospheres were incorporated into the tactoid shape of stacked rGO nanosheets to generate significant shear pressures during milling and facilitate the exfoliation of rGO. Hybrid nanofiller-altered epoxy polymers was infused at PF assess mechanical charcteristics of PFRP system by compression, drop-weight, tensile, flexural, and impact tests. The synergistic effect of zero-dimensional zinc oxide and two-dimensional rGO nanoplatelets improved the mechanical properties of PFRP, particularly in Pineapple Leaf Fibre + 1 wt% rGO/14 wt% ZnO (PF-H 1), which exhibited the greatest increase in modulus and strength compared to unmodified PF. The findings indicated that inclusion of hybrid nanofiller enhanced mechanical characteristics of composite. PF possesses significant promise as a substitute for synthetic ramie fiber in the production of mechanical components and structures.