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<p>The search for sustainable materials in composites has driven interest in natural additives, yet research on hardwood byproducts as eco-friendly fillers remains limited. This study addresses this gap by evaluating ebony wood powder, a byproduct of mature ebony wood, as a sustainable alternative to synthetic fillers. Its high density, natural hardness, and fine texture make it a promising material for advanced applications. Comprehensive analyses, including chemical analysis, FTIR, XRD, SEM, TGA, UV analysis and antibacterial testing, revealed a composition of cellulose (51.09 %), hemicellulose (29.46 %), and lignin (14.86 %), with dominant cellulose I crystallinity. XRD analysis confirms the average crystallinity of 8.84 nm. Thermal degradation occurred at 371 °C, exceeding many natural fibers, and antibacterial assays revealed strong resistance, showing a 21.75 mm inhibition zone against E. coli, S. aureus, S. epidermidis, and P. aeruginosa. Ebony particulates possessed strong absorption of UV rays in the 200 to 300 nm wavelength relatively with low transmission of 2.73 %. This study demonstrates the potentials of ebony wood powder as a thermally stable, bioactive, and eco-friendly filler for various product development.</p>

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Characterization and suitability of cellulosic ebony wood particulate for optoelectronic composites

  • 期刊论文

  • 发表日期：

    2026年2月9日

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  • Indhusekaran N.,
  • Balasundaram R.,
  • Prabhakar M.

摘要

The search for sustainable materials in composites has driven interest in natural additives, yet research on hardwood byproducts as eco-friendly fillers remains limited. This study addresses this gap by evaluating ebony wood powder, a byproduct of mature ebony wood, as a sustainable alternative to synthetic fillers. Its high density, natural hardness, and fine texture make it a promising material for advanced applications. Comprehensive analyses, including chemical analysis, FTIR, XRD, SEM, TGA, UV analysis and antibacterial testing, revealed a composition of cellulose (51.09 %), hemicellulose (29.46 %), and lignin (14.86 %), with dominant cellulose I crystallinity. XRD analysis confirms the average crystallinity of 8.84 nm. Thermal degradation occurred at 371 °C, exceeding many natural fibers, and antibacterial assays revealed strong resistance, showing a 21.75 mm inhibition zone against E. coli, S. aureus, S. epidermidis, and P. aeruginosa. Ebony particulates possessed strong absorption of UV rays in the 200 to 300 nm wavelength relatively with low transmission of 2.73 %. This study demonstrates the potentials of ebony wood powder as a thermally stable, bioactive, and eco-friendly filler for various product development.