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<p>The demand for sustainable and high performance materials has encouraged the development of bio-reinforced polymer composites for additive manufacturing. In this work, 3D printed PLA composites reinforced with <i>Cyperusplatystylis</i> stem microfiber and biosilica derived from <i>Seteriaitalica</i> were fabricated and their mechanical, tribological and fatigue behaviours were investigated. Biosilica particles of two different sizes were incorporated at various volume fractions to examine their influence on composite performance. The fabricated specimens were evaluated through tensile, flexural, impact, hardness, compression, wear and fatigue tests. The results reveal that the addition of biosilica significantly enhances the mechanical strength, wear resistance and fatigue durability of the PLA composites compared with the filler free specimen. Among the developed composites, the sample containing 1 vol% biosilica with smaller particle size exhibited the best overall performance due to improved dispersion and effective interfacial bonding between the PLA matrix, stem microfiber and biosilica filler. The developed composites demonstrate strong potential for lightweight structural and engineering components produced through 3D printing.</p>

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Epoxy Composites Reinforced with Cyperus platystylis Stem Fiber and Setaria italica Husk Silica

  • 期刊论文

  • 发表日期：

    2026年7月2日

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  • Mogadati Vimal Teja,
  • T. Mothilal,
  • Seeniappan Kaliappan,
  • N. Nithyanandan

摘要

The demand for sustainable and high performance materials has encouraged the development of bio-reinforced polymer composites for additive manufacturing. In this work, 3D printed PLA composites reinforced with Cyperusplatystylis stem microfiber and biosilica derived from Seteriaitalica were fabricated and their mechanical, tribological and fatigue behaviours were investigated. Biosilica particles of two different sizes were incorporated at various volume fractions to examine their influence on composite performance. The fabricated specimens were evaluated through tensile, flexural, impact, hardness, compression, wear and fatigue tests. The results reveal that the addition of biosilica significantly enhances the mechanical strength, wear resistance and fatigue durability of the PLA composites compared with the filler free specimen. Among the developed composites, the sample containing 1 vol% biosilica with smaller particle size exhibited the best overall performance due to improved dispersion and effective interfacial bonding between the PLA matrix, stem microfiber and biosilica filler. The developed composites demonstrate strong potential for lightweight structural and engineering components produced through 3D printing.