Abstract
Recently, the development of biodegradable polymer-based film/composites has acknowledged more attention due to their environment-friendly properties. Polyvinyl alcohol (PVA) is a biodegradable, non-toxic and biocompatible polymer with major limitation of water solubility in water. The present work is an attempt to decrease the solubility limitation with improvement in mechanical properties. In the present work, citric acid was used as cross-linking agent to reduce the water solubility of PVA. Concentration of citric acid and curing time was considered as the important parameter, and their effect on fabricated films was evaluated. Further, water absorption test was performed to test the water solubility. Mechanical characterization of films was done by tensile test which determines the ultimate tensile strength, % elongation and Young’s modulus. It was observed that cross-linking reaction was optimum when the curing time for preparing films was kept more than 48 h. It was also observed that maximum UTS was found for 30 wt% CA when curing time was kept 96 h. The maximum UTS was increased up to 300% as compared to neat PVA. ANOVA result states that curing time was the major critical factor which affects the mechanical properties of cross-linked films.
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Acknowledgements
The authors would like to thank the Department of Mechanical Engineering, MIET, Meerut, for proving the necessary facilities for fabricating the cross-linked films. Authors also express gratitude to AKTU for providing necessary found under TEQIP-III for procurement of raw material and testing/analysing the fabricated films.
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Jain, N., Deep, G., Madan, A.K., Dubey, M., Tomar, N., Gupta, M. (2021). Fabrication and Characterization of PVA-Based Films Cross-Linked with Citric Acid. In: Singari, R.M., Mathiyazhagan, K., Kumar, H. (eds) Advances in Manufacturing and Industrial Engineering. ICAPIE 2019. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-8542-5_64
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DOI: https://doi.org/10.1007/978-981-15-8542-5_64
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