Environmentally Friendly Bioplastic Innovation Based on Banana Peel Waste as a Solution to Reduce Conventional Plastic

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Conventional plastic waste poses a serious environmental problem due to its resistance to degradation. This study developed an eco-friendly bioplastic made from banana peel waste, reinforced with graphene oxide (GO) as a filler. The bioplastics were synthesized using the melt-blending method with GO concentrations of 0%, 0.5%, 1%, 1.5%, and 2%. Tensile strength tests showed that the bioplastic with 2% GO exhibited the highest mechanical performance, with a tensile strength of 26.15 N/cm2 and a Young’s modulus of 130.73 MPa, compared to the non-graphene sample which only reached 22.64 N/cm2 and 113.23 MPa. Biodegradability tests using the soil burial method over 6 days revealed that the non-graphene sample had the fastest degradation rate, with a weight loss of up to 45%, outperforming the graphene-reinforced variants. The results indicate that while GO enhances mechanical properties, it reduces the biodegradation rate. Therefore, banana peel-based bioplastic offers a promising, sustainable alternative to conventional plastics adaptable either for high-strength applications or for products designed to degrade more rapidly in natural environments.

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Materials Science Forum (Volume 1196)

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137-147

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June 2026

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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