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Bio-Modified UFBC Interlocking Structure for Enhanced Interfacial Design of PLA Films with Improved Plasticity and

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This study enhances brittle Polylactic acid (PLA) films by incorporating modified UFBC with biocohesive agents (TA-ESO). The resulting composite films exhibit significantly improved toughness and strength for broader applications.

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Area of Science:

  • Materials Science
  • Polymer Science

Background:

  • Polylactic acid (PLA) films possess inherent brittleness, limiting their practical applications.
  • Enhancing the toughness of PLA is crucial for expanding its use in various industries.

Purpose of the Study:

  • To improve the toughness and mechanical properties of PLA films.
  • To investigate the effectiveness of UFBC modified with biocohesive agents (TA-ESO) as a toughening agent for PLA.

Main Methods:

  • Composite films were prepared using UFBC modified with TA-ESO and PLA.
  • The mechanical properties, including tensile strength and elongation, were evaluated.
  • Crystallinity of the composite films was analyzed.

Main Results:

  • TA-ESO-modified UFBC significantly improved PLA film toughness.
  • Tensile elongation increased by 189.11% compared to pure PLA.
  • Tensile strength remained high at 23.95 MPa, with crystallinity increasing from 1.09% to 2.05%.

Conclusions:

  • TA-ESO-modified UFBC effectively enhances PLA's mechanical properties, particularly toughness.
  • The developed composite films show potential for packaging, medical, and agricultural applications.
  • Improved compatibility and mechanical interlocking contribute to enhanced film performance.