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<p>Sustainable materials such as bio-composites can be an eco-friendly alternative to synthetic materials. Eco-composites using untreated Tunisian ASW particles in an epoxy matrix exhibit substantial potential for sustainable material development. This study investigates these composites’ mechanical and thermal properties, highlighting their relevance to environmental management. By incorporating ASW at various concentrations, the study explores the optimization of material composition for enhanced performance. Through tensile testing and thermal conductivity analysis, significant findings emerged: a 5% ASW concentration improved stiffness without compromising elongation at break; at 20% ASW, significant plastic deformation phase is observed, indicating enhanced ductility: the strain at break reaches around 0.096, which is the highest among the tested concentrations, while at 40% ASW, concentration increased thermal conductivity by up to 30%. These results underscore the potential of untreated ASW-based composites in applications requiring both mechanical strength and thermal efficiency. This research demonstrates how ASW integration contributes to promote agricultural waste recycling for better sustainability. The developed eco-composite is relevant for applications in Tunisia and in the Mediterranean region and pave the way for applications in various commercial and technical fields.</p>

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Optimal concentration and mechanical–thermal properties of untreated Tunisian almond shell waste (variety)/epoxy eco-composites

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Ali Ellouze,
  • Sofiene Helaili,
  • Rakia S’habou

摘要

Sustainable materials such as bio-composites can be an eco-friendly alternative to synthetic materials. Eco-composites using untreated Tunisian ASW particles in an epoxy matrix exhibit substantial potential for sustainable material development. This study investigates these composites’ mechanical and thermal properties, highlighting their relevance to environmental management. By incorporating ASW at various concentrations, the study explores the optimization of material composition for enhanced performance. Through tensile testing and thermal conductivity analysis, significant findings emerged: a 5% ASW concentration improved stiffness without compromising elongation at break; at 20% ASW, significant plastic deformation phase is observed, indicating enhanced ductility: the strain at break reaches around 0.096, which is the highest among the tested concentrations, while at 40% ASW, concentration increased thermal conductivity by up to 30%. These results underscore the potential of untreated ASW-based composites in applications requiring both mechanical strength and thermal efficiency. This research demonstrates how ASW integration contributes to promote agricultural waste recycling for better sustainability. The developed eco-composite is relevant for applications in Tunisia and in the Mediterranean region and pave the way for applications in various commercial and technical fields.