MORPHOLOGICAL INSIGHTS INTO BIODEGRADABLE POLYMERIC FILMS: A COMPARATIVE STUDY OF PLA, CELLULOSE, AND STARCH USING SEM AND X-RAY DIFFRACTION
Authors: Ahuja S , KHANT HB AND RAULJI HJ

ABSTRACT
Using a variety of analytical techniques, this research report presents a thorough characterization investigation on biodegradable polymeric films based on polylactic acid (PLA), cellulose, and starch. The films' crystalline structure and molecular arrangement were investigated using X-ray diffraction (XRD), which provided information on their mechanical and thermal characteristics. The surface morphology could be seen in great detail thanks to scanning electron microscopy (SEM), which also helped to better understand the microstructure of the films. FTIR, or Fourier Transform Infrared Spectroscopy, was used to look at the chemical makeup and bonding relationships in the films. The investigation explores the molecular vibrational modes, clarifying the existence of functional groups and their influence on the general characteristics of the films. Furthermore, UV-Vis analysis was carried out to assess the optical qualities, including transparency and absorption qualities, providing insight into the films' possible uses in packaging and other optical devices. The combined use of these cutting-edge characterization methods offers a comprehensive understanding of the structural, morphological, chemical, and optical characteristics of PLA, cellulose, and starch-based polymeric films. A thorough grasp of these biodegradable materials' qualities is essential for customizing them for a range of uses, especially when it comes to ecologically friendly substitutes for typical plastics and sustainable packaging. Keywords: cellulose, PLA, packaging
Publication date: 01/02/2025
    https://ijbpas.com/pdf/2025/February/MS_IJBPAS_2025_8682.pdf
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https://doi.org/10.31032/IJBPAS/2025/14.2.8682