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<p>This research investigates water absorption and mechanical characteristics of vetiver root fiber-reinforced epoxy changed with different weight percentages (3%, 5%, 7%) of zinc oxide (ZnO). This study is innovative due to its thorough examination of synergistic impacts of ceramic filler and natural fiber on improving environmental and structural efficiency of biocomposites. Combination is still inadequately examined in the existing research. The major objective were identify best hybrid formulation that equilibrates durability, moisture resistance and strength for sustainable structural applications. Vetiver root fibers underwent chemical treatment to enhance interfacial adhesion, and five composite was produced using hand lay-up method, subsequently subjected to compression moulding. Mechanical evaluations encompassing impact, flexural, hardness and tensile, assessments, along with water absorption studies were performed in accordance with ASTM standards. The findings indicated that the inclusion of ZnO significantly improved mechanical characteristics and decreased moisture absorption. The Sample Comprising 25 wt% vetiver root fiber and 7 wt% ZnO displayed the maximum TS (42.6&#xa0;MPa), FS (60.2&#xa0;MPa), IS (6.8&#xa0;kJ/m²), and hardness (80.3), concurrently exhibiting lowest water absorption (2.8%). SEM validated enhanced fiber-matrix and filler distribution bonding at formulation. In contrast, excessive filler or diminished fiber content resulted in inferior performance and agglomeration. The output validate capability of vetiver root–ZnO–epoxy as sustainable substitutes and lightweight for automotive and structural applications, hence encouraging utilization of resources at modern engineering materials.</p>

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Mechanical, moisture, and morphological evaluation of ZnO-modified vetiver root fiber epoxy bio composites for sustainable applications

  • 期刊论文

  • 发表日期：

    2026年4月14日

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  • Ganesh Babu. L,
  • Sureshkumar V,
  • Pradeep G.M,
  • Tamilselvi S,
  • Shalom N,
  • Girimurugan R

摘要

This research investigates water absorption and mechanical characteristics of vetiver root fiber-reinforced epoxy changed with different weight percentages (3%, 5%, 7%) of zinc oxide (ZnO). This study is innovative due to its thorough examination of synergistic impacts of ceramic filler and natural fiber on improving environmental and structural efficiency of biocomposites. Combination is still inadequately examined in the existing research. The major objective were identify best hybrid formulation that equilibrates durability, moisture resistance and strength for sustainable structural applications. Vetiver root fibers underwent chemical treatment to enhance interfacial adhesion, and five composite was produced using hand lay-up method, subsequently subjected to compression moulding. Mechanical evaluations encompassing impact, flexural, hardness and tensile, assessments, along with water absorption studies were performed in accordance with ASTM standards. The findings indicated that the inclusion of ZnO significantly improved mechanical characteristics and decreased moisture absorption. The Sample Comprising 25 wt% vetiver root fiber and 7 wt% ZnO displayed the maximum TS (42.6 MPa), FS (60.2 MPa), IS (6.8 kJ/m²), and hardness (80.3), concurrently exhibiting lowest water absorption (2.8%). SEM validated enhanced fiber-matrix and filler distribution bonding at formulation. In contrast, excessive filler or diminished fiber content resulted in inferior performance and agglomeration. The output validate capability of vetiver root–ZnO–epoxy as sustainable substitutes and lightweight for automotive and structural applications, hence encouraging utilization of resources at modern engineering materials.