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Physiological and Biodegradation Changes Properties of PLA\UHMWPE\PVA Blends During Early Stage of Biodegradation in Vivo

Author

Listed:
  • Enas al-Zubaidy

    (Department of Engineering of Polymer and Petrochemical Industries, College of Materials Engineering, University of Babylon, Hillah)

  • Ahmed Fadhil Hamza

    (Department of Engineering of Polymer and Petrochemical Industries, College of Materials Engineering, University of Babylon, Hillah)

  • Zuhair Jabbar Abdul Ameer

    (Department of Prosthetics and Orthotics, College of Engineering, University of Karbala, Kerbala)

Abstract

Biodegradable plastic blends from natural sources, namely pure polylactic acid (PLA) and polyvinyl alcohol (PVA) with ultra-high molecular weight polyethylene (UHMWPE) softener, were studied to investigate changes in their physical properties resulting from in vivo biodegradation at body temperature. These blends are also suitable for the manufacture of medical scaffolds and artificial joints. Fourier transform infrared (FTIR) spectroscopy revealed a significant change in the chemical composition, manifested by improved cohesion and structural diffusion. Furthermore, a broad band appeared in the 3417–3471 cm-1 region, representing a clear modification of the spectra and leading to the formation of a biofilm on the outer surface of the samples. DSC analysis supported the clear effect across all blend spectra. Changes in the gravimetric values confirmed that the PVA\PLA/UHMWPE samples degraded significantly faster with increasing PVA volume fraction, and PVA completely disappeared at higher volume fractions. It was also shown that PLA did not degrade rapidly into PLA/UHMWPE in vivo, maintaining its overall structure and weight unchanged.

Suggested Citation

  • Enas al-Zubaidy & Ahmed Fadhil Hamza & Zuhair Jabbar Abdul Ameer, 2025. "Physiological and Biodegradation Changes Properties of PLA\UHMWPE\PVA Blends During Early Stage of Biodegradation in Vivo," International Journal of Research and Scientific Innovation, International Journal of Research and Scientific Innovation (IJRSI), vol. 12(13), pages 2657-2666, August.
    • Handle: RePEc:bjc:journl:v:12:y:2025:i:13:p:2657-2666
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