Scholarlink

<p>This study focuses on the sustainable development of epoxy-based composite rebars reinforced with silane treated <i>Trema orientalis</i> stem microfibers and silane treated cactus pear fruit peel waste–derived biochar for building applications. Hybrid composites with varying biochar contents were fabricated and evaluated for mechanical properties, thermal conductivity, water absorption, and fracture morphology using SEM analysis. The results reveal a significant improvement in overall performance compared to neat epoxy due to effective surface treatment and synergistic fiber–filler reinforcement. Among all formulations, specimen EMB2 exhibited superior mechanical properties with a tensile strength of 124&#xa0;MPa, flexural strength of 138&#xa0;MPa, impact energy of 3.28&#xa0;J, and hardness of 81 Shore D, attributed to optimal biochar loading that enhances interfacial adhesion, stress transfer, and crack resistance. In contrast, specimen EMB3 demonstrated the highest thermal conductivity of 0.61 W/mK and the lowest water absorption of 1.32%, owing to the formation of continuous conductive pathways and reduced moisture diffusion through increased matrix compactness. SEM analysis further supported these findings by revealing strong fiber–matrix–filler bonding in EMB2 and filler agglomeration in EMB3 at higher biochar loading. Overall, the study confirms the potential of silane treated natural fiber and waste biochar reinforced epoxy composites as eco-friendly, durable alternatives to conventional steel rebars in sustainable construction.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Performance evaluation of epoxy composites reinforced with surface modified cactus pear fruit peel waste biochar and Trema orientalisStem microfiber for building applications

  • 期刊论文

  • 发表日期：

    2026年7月28日

查看全文
  • A. S. Vijay Vikram,
  • Santhosh S,
  • P. Hari chandra prasad,
  • Shreyas Rajendra Hole

摘要

This study focuses on the sustainable development of epoxy-based composite rebars reinforced with silane treated Trema orientalis stem microfibers and silane treated cactus pear fruit peel waste–derived biochar for building applications. Hybrid composites with varying biochar contents were fabricated and evaluated for mechanical properties, thermal conductivity, water absorption, and fracture morphology using SEM analysis. The results reveal a significant improvement in overall performance compared to neat epoxy due to effective surface treatment and synergistic fiber–filler reinforcement. Among all formulations, specimen EMB2 exhibited superior mechanical properties with a tensile strength of 124 MPa, flexural strength of 138 MPa, impact energy of 3.28 J, and hardness of 81 Shore D, attributed to optimal biochar loading that enhances interfacial adhesion, stress transfer, and crack resistance. In contrast, specimen EMB3 demonstrated the highest thermal conductivity of 0.61 W/mK and the lowest water absorption of 1.32%, owing to the formation of continuous conductive pathways and reduced moisture diffusion through increased matrix compactness. SEM analysis further supported these findings by revealing strong fiber–matrix–filler bonding in EMB2 and filler agglomeration in EMB3 at higher biochar loading. Overall, the study confirms the potential of silane treated natural fiber and waste biochar reinforced epoxy composites as eco-friendly, durable alternatives to conventional steel rebars in sustainable construction.