Abstract
The intention of this work is to study the impact of inclusion of Cashew nut shell powder (CNS) in the Poly vinylalcohol (PVA) based films. CNS is a biowaste material chosen as a particulate reinforcement, and the biodegradable polymer PVA is made as a matrix material. The films with various weight proportion was fabricated through solution casting method and characterized using FTIR, XRD, morphological examinations, mechanical and thermal property analysis, antibacterial evaluation, and degradation tests. Compared to films lacking essential oil, the biodegradable films showed significant enhancements in mechanical properties, with tensile strength increasing to 22 MPa (a 130% increase), tensile modulus increasing to 264 MPa, and elongation decreasing by 24.5%. However, the addition of essential oil significantly improved thermal stability, with the initiation of degradation showing at a significantly higher temperature of 215 °C, representing a significant 43% increase. The antimicrobial testing revealed a significant 93% reduction in bacterial growth, demonstrating CNS's potency as an antibacterial agent. These findings highlight the possibility of combining CNS with PVA to fabricate biocomposite films with higher biodegradability and antibacterial characteristics, along with higher tensile strength and thermal stability, confirming their viability for eco-friendly packaging materials and other sustainable applications.
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Mahanta, G.K., Joardar, H. Study on the Impact of Bio Waste Cashew Nut Shell Powder in the Polyvinyl Alcohol Bio Films. Waste Biomass Valor (2024). https://doi.org/10.1007/s12649-024-02576-3
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DOI: https://doi.org/10.1007/s12649-024-02576-3