ArticleACS omega2025
Mechanical, Thermal, and Barrier Property Studies of Polylactic Acid Composite Blown Films with Nanohydroxyapatite as a Filler Derived from Pink Perch Fish Scales.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
4 authors.
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Abstract
The present study focuses on improving the flexibility of PLA by reinforcing it with a nanohydroxyapatite (n-HAp) filler. The n-HAp was synthesized via pink perch fish scales (PPFS) using a simple and feasible pyrolysis method and was characterized using XRD, FTIR, Raman spectroscopy, TGA, SEM, and TEM. n-Hap of 0.25, 0.5, 0.75, and 1 wt % was used to reinforce the PLA matrix, and PLA_HAp composite blown films were extruded for further studies. The PLA_HAp composite blown films were characterized by using XRD, FTIR, Raman spectroscopy, and SEM to understand the interaction of the n-HAP in the PLA matrix. The thermal and mechanical analyses of the PLA_HAp blown films reveal that a low concentration of n-HAp can reduce the thermal stability and improve the flexibility of the films. The thermal characterizations infer that n-HAp in PLA acts as a nucleating center in the PLA backbone to improve the flexibility of films. Tensile results show that PLA_HAp 0.5 exhibited maximum flexibility with elongation at break of 20%, which is a 400% enhancement compared to neat PLA. The WVTR analysis of PLA-HAp composites, compared to neat PLA blown films, revealed a reduction in water permeability by 56% for PLA_HAp 0.5 and 66% for PLA_HAp 1 under ambient conditions, making them suitable for food packaging applications.
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