Scholarlink

<p>This study investigated the influence of waste pistachio shell (WPNS), tea leaf (WTLF), and quail eggshell (WQES) fillers on the mechanical, thermal, tribological, and acoustic properties of hybrid jute-reinforced polylactic acid (PLA) composites. Eight composite formulations were prepared using compression molding, incorporating varying compositions of jute fibers and biofillers. The results revealed that the incorporation of 7.5 wt. % of these fillers significantly enhanced the composite's overall performance. Sample S7 (containing WTLF) exhibited the highest sound absorption coefficient (SAC) of 0.643, followed by S8 (WQES, SAC = 0.578) and S6 (WPNS, SAC = 0.485), indicating the effectiveness of the filler-induced porous structures in improving acoustic damping. XRD analysis confirmed that WQES had the highest crystallinity index and crystallite size, which contributed to its superior mechanical reinforcement capabilities. SEM analysis provided evidence of enhanced interfacial bonding in the WQES composites, whereas the WPNS and WTLF composites exhibited a more porous and tortuous morphology, facilitating better sound absorption. The hybrid composites also demonstrated improved tensile strength, flexural strength, and impact resistance compared with pure PLA. Sample S6 (Jute/PLA/WPNS) exhibited the highest tensile (57.38&#xa0;MPa) and flexural (114.67&#xa0;MPa) strengths, whereas S7 (Jute/PLA/WTLF) showed the highest impact strength (4.35&#xa0;kJ/m<sup>2</sup>). The incorporation of WQES significantly reduced water absorption and improved flame retardancy, with S5 (WQES/PLA) exhibiting the lowest water absorption (0.588%) and the best flame resistance (UL 94&#xa0;V-0 rating). These findings highlight the potential of these sustainable biofillers for developing high-performance composites with balanced mechanical and acoustic properties for various applications, including noise-reducing panels, automotive interiors, and structural components.</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

Valorization of agricultural waste in jute–PLA biocomposites: performance analysis of pistachio shell, tea leaf, and quail eggshell fillers

  • 期刊论文

  • 发表日期：

    2025年8月19日

查看全文
  • Karthik Karunanidhi,
  • Mohanraj Manoharan,
  • Gokulkumar Sivanantham

摘要

This study investigated the influence of waste pistachio shell (WPNS), tea leaf (WTLF), and quail eggshell (WQES) fillers on the mechanical, thermal, tribological, and acoustic properties of hybrid jute-reinforced polylactic acid (PLA) composites. Eight composite formulations were prepared using compression molding, incorporating varying compositions of jute fibers and biofillers. The results revealed that the incorporation of 7.5 wt. % of these fillers significantly enhanced the composite's overall performance. Sample S7 (containing WTLF) exhibited the highest sound absorption coefficient (SAC) of 0.643, followed by S8 (WQES, SAC = 0.578) and S6 (WPNS, SAC = 0.485), indicating the effectiveness of the filler-induced porous structures in improving acoustic damping. XRD analysis confirmed that WQES had the highest crystallinity index and crystallite size, which contributed to its superior mechanical reinforcement capabilities. SEM analysis provided evidence of enhanced interfacial bonding in the WQES composites, whereas the WPNS and WTLF composites exhibited a more porous and tortuous morphology, facilitating better sound absorption. The hybrid composites also demonstrated improved tensile strength, flexural strength, and impact resistance compared with pure PLA. Sample S6 (Jute/PLA/WPNS) exhibited the highest tensile (57.38 MPa) and flexural (114.67 MPa) strengths, whereas S7 (Jute/PLA/WTLF) showed the highest impact strength (4.35 kJ/m2). The incorporation of WQES significantly reduced water absorption and improved flame retardancy, with S5 (WQES/PLA) exhibiting the lowest water absorption (0.588%) and the best flame resistance (UL 94 V-0 rating). These findings highlight the potential of these sustainable biofillers for developing high-performance composites with balanced mechanical and acoustic properties for various applications, including noise-reducing panels, automotive interiors, and structural components.