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<p>Bionanocomposites have been synthesized by reinforcing cellulose nanofibers (CNFs) into lignopolyol based polyurethane (PU). Both lignin and cellulose nanofibers were isolated synchronously from waste discarded jute bags. The effect of cellulose nanofiller (concentration ranging from 0 to 15&#xa0;wt.%) on mechanical properties, thermal stability and hydrolytic degradation of the synthesized PU/CNF nanocomposites was also examined both experimentally and statistically. The mechanical and thermal properties were studied using thermal gravimetric analysis (TGA-DTG) and tensile testing. The hydrolytic degradation of PU nanocomposites was studied in phosphate buffer saline (PBS) for 8&#xa0;weeks. Multivariate analysis of variance (MANOVA) is utilized to analyze the effect of cellulose nanofiller concentration. The 10% addition of CNFs resulted in more than 600 ± 10% and 181% ± 8 increase in tensile strength and hydrolytic degradation. The MANOVA results demonstrated a significant correlation between cellulose nanofiller concentration and the mechanical properties, thermal stability, and hydrolytic stability of the nanocomposites.</p> Graphical Abstract <p></p>

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Transforming jute waste into high-performance biodegradable polyurethane bionanocomposites

  • 期刊论文

  • 发表日期：

    2025年7月4日

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  • Dheeraj Ahuja,
  • Lokesh Kumar,
  • Savita Jain,
  • Binayaka Nahak,
  • Anupama Kaushik

摘要

Bionanocomposites have been synthesized by reinforcing cellulose nanofibers (CNFs) into lignopolyol based polyurethane (PU). Both lignin and cellulose nanofibers were isolated synchronously from waste discarded jute bags. The effect of cellulose nanofiller (concentration ranging from 0 to 15 wt.%) on mechanical properties, thermal stability and hydrolytic degradation of the synthesized PU/CNF nanocomposites was also examined both experimentally and statistically. The mechanical and thermal properties were studied using thermal gravimetric analysis (TGA-DTG) and tensile testing. The hydrolytic degradation of PU nanocomposites was studied in phosphate buffer saline (PBS) for 8 weeks. Multivariate analysis of variance (MANOVA) is utilized to analyze the effect of cellulose nanofiller concentration. The 10% addition of CNFs resulted in more than 600 ± 10% and 181% ± 8 increase in tensile strength and hydrolytic degradation. The MANOVA results demonstrated a significant correlation between cellulose nanofiller concentration and the mechanical properties, thermal stability, and hydrolytic stability of the nanocomposites.

Graphical Abstract