Abstract
Biocomposites are promising eco-friendly materials which could replace synthetic plastic in many application fields. However, hydrophilic nature and poor chemical resistance limit their usage. Analysis of their chemical resistance and weathering on exposure to various environmental conditions would be highly beneficial for their suitable modifications, novel developments and thereby commercial acceptability. In the present work, woven palm-cotton fibre-reinforced polystyrene biocomposite samples with different weight % of polystyrene are developed and taken for analysing chemical resistance, swelling behaviour and biodegradability. Chemical resistance test indicated that the composite materials are resistant to concentrated acids (HCl, HNO3), concentrated alkalis (50% NaOH, 50% KOH, 25% NH4OH), 2% K2Cr2O7 and 2% KMnO4. Swelling behaviour is measured by weight gain method using distilled water, sea water, methanol and carbon tetrachloride. The swelling increases with immersion time and maximum swelling occurred in distilled water. Biodegradability test was done by soil burial method and it revealed that woven palm-cotton fibre-reinforced/polystyrene biocomposites are biodegradable and biodegradability increases with increase in burial time and decreases with increase in polystyrene content. This study revealed that properties exhibited by woven palm-cotton fibre-reinforced/polystyrene biocomposites made with environmental threat causing dumped expanded polystyrene foam waste matrix is on par with other natural fibre-reinforced hybrid composite. Hence, the present study is expected to open up new potential applications for this material in various fields as well as scope for further research.
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Acknowledgements
The authors are grateful to Dr. A. Sujith, Associate Professor in Chemistry, National Institute of Technology, Calicut, India, for providing necessary facilities and help for this research work.
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Sujaya, G., Anbazhagan, V. (2022). Studies on Chemical Resistance, Swelling Behaviour and Biodegradability of Natural Fiber-Reinforced Biocomposite. In: Bindhu, V., R. S. Tavares, J.M., Ţălu, Ş. (eds) Proceedings of Fourth International Conference on Inventive Material Science Applications. Advances in Sustainability Science and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-16-4321-7_52
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DOI: https://doi.org/10.1007/978-981-16-4321-7_52
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