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<p>In response to the growing environmental threat posed by plastic waste, this study developed hydrophobic biopolymer films from red seaweed (<i>Kappaphycus alvarezii</i>) as a sustainable alternative for packaging. The films were fabricated using a solvent-casting method, followed by surface treatment with triethoxymethylsilane to increase their hydrophobicity. Key metrics, including water solubility (reduced by 37.4%), moisture absorption capacity (decreased by 108.6%), and water vapor permeability (decreased by 65.4%), demonstrated significant improvements over untreated films. Fourier transform infrared (FT-IR) spectroscopy confirmed successful silane integration, whereas mechanical testing revealed increased tensile strength (up to 24.44&#xa0;MPa) and Young’s modulus (183.41&#xa0;MPa), with a moderate reduction in elongation at break. These findings indicate that silane-modified seaweed biopolymer films have strong potential as eco-friendly packaging solutions to mitigate plastic waste.</p> Graphical abstract <p></p>

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Waste to wealth: silane-modified seaweed biopolymers for sustainable packaging material

  • 期刊论文

  • 发表日期：

    2025年3月31日

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  • C. M. Hazwan,
  • C. S. Chang,
  • A. H. Yusoff,
  • N. F. Shoparwe,
  • M. J. K. Mohammad

摘要

In response to the growing environmental threat posed by plastic waste, this study developed hydrophobic biopolymer films from red seaweed (Kappaphycus alvarezii) as a sustainable alternative for packaging. The films were fabricated using a solvent-casting method, followed by surface treatment with triethoxymethylsilane to increase their hydrophobicity. Key metrics, including water solubility (reduced by 37.4%), moisture absorption capacity (decreased by 108.6%), and water vapor permeability (decreased by 65.4%), demonstrated significant improvements over untreated films. Fourier transform infrared (FT-IR) spectroscopy confirmed successful silane integration, whereas mechanical testing revealed increased tensile strength (up to 24.44 MPa) and Young’s modulus (183.41 MPa), with a moderate reduction in elongation at break. These findings indicate that silane-modified seaweed biopolymer films have strong potential as eco-friendly packaging solutions to mitigate plastic waste.

Graphical abstract