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<p>Natural waste nanocellulose-based biodegradable hybrid green polymer composites can replace petroleum-based plastics to reduce environmental pollution. This study describes a new approach for combining hybrid nanocellulose (HNC) derived from discarded jute bags and ramie fabric with the matrix material polylactic acid (PLA) to create high-performance, lightweight sustainable composite materials. The process of composite fabrication involved the use of HNC weight ratios of 25%, 35%, and 45%. The efficacy of composite materials was evaluated by mechanical, thermal, and morphological examinations. Among the three ratios, the composite with 25% HNC content showed the most favorable outcomes. The 25% HNC composite exhibited a remarkable improvement in flexural strength (156.33 ± 4.15&#xa0;MPa) and tensile strength (26.33 ± 1.18&#xa0;MPa). These values are respectively 3.34 and 4.52 times greater than those of the pure PLA. Thermal properties have been examined by TGA, DTG, and DSC analyses and revealed that hybridization enhanced the thermal properties of the composites significantly. The 25% HNC composite displayed the greatest development in <i>T</i><sub><i>g</i></sub> and <i>T</i><sub><i>m</i></sub> of 69.66 ℃ and 356.33 ℃, respectively. SEM images confirmed that 25% HNC composite exhibited noteworthy HNC/PLA adhesion, resulting in a substantial enhancement in the overall performance of the composite.</p>

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Development of hybrid nanocellulose-reinforced PLA biocomposites from waste jute bags and ramie fabric with enhanced mechanical and thermal properties

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Md Mazharul Islam,
  • Md Azizul Islam,
  • A. N. M. Masudur Rahman,
  • Zhang Xuepeng,
  • Junmei Li,
  • Lifang Liu

摘要

Natural waste nanocellulose-based biodegradable hybrid green polymer composites can replace petroleum-based plastics to reduce environmental pollution. This study describes a new approach for combining hybrid nanocellulose (HNC) derived from discarded jute bags and ramie fabric with the matrix material polylactic acid (PLA) to create high-performance, lightweight sustainable composite materials. The process of composite fabrication involved the use of HNC weight ratios of 25%, 35%, and 45%. The efficacy of composite materials was evaluated by mechanical, thermal, and morphological examinations. Among the three ratios, the composite with 25% HNC content showed the most favorable outcomes. The 25% HNC composite exhibited a remarkable improvement in flexural strength (156.33 ± 4.15 MPa) and tensile strength (26.33 ± 1.18 MPa). These values are respectively 3.34 and 4.52 times greater than those of the pure PLA. Thermal properties have been examined by TGA, DTG, and DSC analyses and revealed that hybridization enhanced the thermal properties of the composites significantly. The 25% HNC composite displayed the greatest development in Tg and Tm of 69.66 ℃ and 356.33 ℃, respectively. SEM images confirmed that 25% HNC composite exhibited noteworthy HNC/PLA adhesion, resulting in a substantial enhancement in the overall performance of the composite.