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<p>Natural fiber-reinforced biocomposites are becoming more popular due to their growing demand. This research reports the development of a biodegradable hybrid composite using a unique combination of natural plant-based fibers such as Bamboo (BO), Areca nut sheath (<i>A</i>), and Ramie (<i>R</i>) fiber, collectively termed as BOAR fiber, reinforced within a Polylactic Acid (PLA), Chitosan, Graphene Oxide (GO) matrix. To strengthen interfacial adhesion between fiber and matrix, advanced surface treatments, including alkali, plasma, enzymatic, and silane modifications, are applied. Five composite formulations (S1–S5) are fabricated by constant reinforcement of fiber (10%) and varying the composition of the matrix (80 to 60% of PLA, 5 to 15% of Chitosan and GO) through compression molding and are evaluated for their physicochemical properties. Among the samples, S3 (10%–BOAR fiber, 70%–PLA, 10%–Chitosan and 10%–GO) manifested outstanding performance, accomplishing a tensile strength of 52&#xa0;MPa, flexural strength of 54&#xa0;MPa, and impact strength of 0.125&#xa0;kJ/m<sup>2</sup>. The significance of the composite with Sample S3, with highest mechanical property improvement is substantiated by statistical validation. Overall, fiber hybridization with chitosan and GO produced a resilient biocomposite, alternative to synthetic composites for structural applications.</p>

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Evaluation of Mechanical Property Enhancement in Hybrid Natural Fiber Composites through Surface Modification Techniques

  • 期刊论文

  • 发表日期：

    2026年7月28日

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  • T. Prakash,
  • T. G. Ansalam Raj,
  • Sabbah Ataya,
  • Singuru Madhavarao

摘要

Natural fiber-reinforced biocomposites are becoming more popular due to their growing demand. This research reports the development of a biodegradable hybrid composite using a unique combination of natural plant-based fibers such as Bamboo (BO), Areca nut sheath (A), and Ramie (R) fiber, collectively termed as BOAR fiber, reinforced within a Polylactic Acid (PLA), Chitosan, Graphene Oxide (GO) matrix. To strengthen interfacial adhesion between fiber and matrix, advanced surface treatments, including alkali, plasma, enzymatic, and silane modifications, are applied. Five composite formulations (S1–S5) are fabricated by constant reinforcement of fiber (10%) and varying the composition of the matrix (80 to 60% of PLA, 5 to 15% of Chitosan and GO) through compression molding and are evaluated for their physicochemical properties. Among the samples, S3 (10%–BOAR fiber, 70%–PLA, 10%–Chitosan and 10%–GO) manifested outstanding performance, accomplishing a tensile strength of 52 MPa, flexural strength of 54 MPa, and impact strength of 0.125 kJ/m2. The significance of the composite with Sample S3, with highest mechanical property improvement is substantiated by statistical validation. Overall, fiber hybridization with chitosan and GO produced a resilient biocomposite, alternative to synthetic composites for structural applications.