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<p>In-depth physicochemical characterization of Myriostachia Wightiana stems (MWSs) and studying their potential in composite applications was carried out. With a low density (800-1171 kg/m<sup>3</sup>), a high cellulose content (62.32%), and a high tensile strength (41.956 MPa), MWSs showed a lot of promise for making lightweight composite products. XRD analysis revealed a crystallinity index (CI) of 54.799% and a crystallite size (CS) of 3.24 nm, while FTIR analysis confirmed the presence of key components such as hemicellulose (C=O), cellulose (O=H), wax (C≡C), and lignin (C=C) in the stem. Thermogravimetric analysis with Broido’s plot indicated strong thermal stability (300°C) with activation energy of 72.84 kJ/mol. Additionally, differential scanning calorimetry (DSC) provided further insights into the energy requirements for decomposing MWS’s chemical compositions. The study also examined the tensile and flexural properties of unidirectional continuous MWS single-ply lamina in comparison to neat epoxy. The impact of alkaline treatment on the mechanical characteristics of MWS and its composites was studied. The mechanical properties of MW short microfiber composites with varying fiber weight percentages (30, 40, and 50%) were evaluated. The findings highlight MWS’s potential as an effective reinforcement material for both structural and non-structural composite applications.</p>

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Harnessing Myriostachia Wightiana Stems for Sustainable Composite Applications: Physicochemical Characterization and Mechanical Performance

  • 期刊论文

  • 发表日期：

    2025年6月27日

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  • Pramod Kumar Parida,
  • Mihir Kumar Pandit,
  • Arun Kumar Pradhan

摘要

In-depth physicochemical characterization of Myriostachia Wightiana stems (MWSs) and studying their potential in composite applications was carried out. With a low density (800-1171 kg/m3), a high cellulose content (62.32%), and a high tensile strength (41.956 MPa), MWSs showed a lot of promise for making lightweight composite products. XRD analysis revealed a crystallinity index (CI) of 54.799% and a crystallite size (CS) of 3.24 nm, while FTIR analysis confirmed the presence of key components such as hemicellulose (C=O), cellulose (O=H), wax (C≡C), and lignin (C=C) in the stem. Thermogravimetric analysis with Broido’s plot indicated strong thermal stability (300°C) with activation energy of 72.84 kJ/mol. Additionally, differential scanning calorimetry (DSC) provided further insights into the energy requirements for decomposing MWS’s chemical compositions. The study also examined the tensile and flexural properties of unidirectional continuous MWS single-ply lamina in comparison to neat epoxy. The impact of alkaline treatment on the mechanical characteristics of MWS and its composites was studied. The mechanical properties of MW short microfiber composites with varying fiber weight percentages (30, 40, and 50%) were evaluated. The findings highlight MWS’s potential as an effective reinforcement material for both structural and non-structural composite applications.