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<p>The development of polyvinyl alcohol (PVA)/gelatin (GL)-based materials, with favorable film-forming properties and biocompatibility, is an important research goal owing to the wide-ranging practical applications. In this study, the composite films were prepared using microcrystalline cellulose (MCC), PVA and GL. MCC and PVA were employed as reinforcing and blending substances to enhance the mechanical and barrier characteristics of GL-based composite films. When 5% MCC was added to PVA/GL substrates, the composite films’ tensile strength increased from 6.41 to 14.02&#xa0;N/mm<sup>2</sup>, the thermal decomposition temperature rose by 11.4&#xa0;°C, and the water content decreased by 9.12%. Simultaneously, the barrier property of the composite films was improved, and their water vapor transmittance was decreased. These experimental results demonstrate the potential of MCC/PVA/GL films for industrial utilization in biodegradable packaging films for portable wrappers.</p>

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Packaging and Degradability Properties of Polyvinyl Alcohol/Gelatin Composite Films Filled Microcrystalline Cellulose

  • 期刊论文

  • 发表日期：

    2026年6月15日

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  • Jie Chen,
  • Zhihao Si,
  • Xiongfang Luo,
  • Jiru Jia,
  • Tian Wang,
  • Shiyi Tu,
  • Jingyi Zhu,
  • Yue Li

摘要

The development of polyvinyl alcohol (PVA)/gelatin (GL)-based materials, with favorable film-forming properties and biocompatibility, is an important research goal owing to the wide-ranging practical applications. In this study, the composite films were prepared using microcrystalline cellulose (MCC), PVA and GL. MCC and PVA were employed as reinforcing and blending substances to enhance the mechanical and barrier characteristics of GL-based composite films. When 5% MCC was added to PVA/GL substrates, the composite films’ tensile strength increased from 6.41 to 14.02 N/mm2, the thermal decomposition temperature rose by 11.4 °C, and the water content decreased by 9.12%. Simultaneously, the barrier property of the composite films was improved, and their water vapor transmittance was decreased. These experimental results demonstrate the potential of MCC/PVA/GL films for industrial utilization in biodegradable packaging films for portable wrappers.