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<p>A comparative analysis of terrestrial and marine polysaccharides—starch and agar—as basic materials blended with commercial biodegradable polybutylene succinate (PBS) is presented in this study. The thermal, morphological, mechanical, barrier, and degradability properties of the composites that were produced were assessed. Starch and agar both possess the ability to form films; however, their performance is substantially influenced by their distinct chemical compositions and microstructures. The thermal stability of agar-based films was found to be higher, as evidenced by the increased mass residue at 500&#xa0;°C, which suggests that they possess improved flame-retardant properties. In comparison to starch films (12&#xa0;MPa), the fibrous morphology of agar resulted in superior tensile strength (22&#xa0;MPa) and rigidity. In contrast, starch exhibited a higher hydroxyl group content, which resulted in increased water interaction, which in turn increased water vapor permeability and solubility. In comparison to agar, starch blends also demonstrated a quicker degradation rate. Both polysaccharides exhibit significant potential for bioplastic applications, despite these distinctions. </p>

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Comparative study on the blends of PBS with thermoplastic starch and agar on their potential as renewable source of bioplastic

  • 期刊论文

  • 发表日期：

    2025年5月9日

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  • Yurin Karunia Apsha Albaina Iasya,
  • Rossy Choerun Nissa,
  • Sukma Surya Kusumah,
  • Riri Uswatun Annifah,
  • Ismadi,
  • Yeyen Nurhamiyah

摘要

A comparative analysis of terrestrial and marine polysaccharides—starch and agar—as basic materials blended with commercial biodegradable polybutylene succinate (PBS) is presented in this study. The thermal, morphological, mechanical, barrier, and degradability properties of the composites that were produced were assessed. Starch and agar both possess the ability to form films; however, their performance is substantially influenced by their distinct chemical compositions and microstructures. The thermal stability of agar-based films was found to be higher, as evidenced by the increased mass residue at 500 °C, which suggests that they possess improved flame-retardant properties. In comparison to starch films (12 MPa), the fibrous morphology of agar resulted in superior tensile strength (22 MPa) and rigidity. In contrast, starch exhibited a higher hydroxyl group content, which resulted in increased water interaction, which in turn increased water vapor permeability and solubility. In comparison to agar, starch blends also demonstrated a quicker degradation rate. Both polysaccharides exhibit significant potential for bioplastic applications, despite these distinctions.