Application of Gamma Irradiation for Recycling Waste Plastic Bag
Main Article Content
Abstract
This work conducted the application of gamma irradiation to enhance the mechanical and physico-chemical properties of waste plastic bags (WPBs). WPBs pellets were irradiated at doses ranging from 10 to 30 kGy and characterized. Based on the mechanical properties results recorded, WPBs with a dose of 15 kGy was suitable for treating WPBs. Notably, the melting flow index, impact strength, and tensile strength of irradiated WPBs (iWPBs) reach ca. 70-80% of those of virgin PE. Furthermore, FTIR spectra analysis indicated that the irradiation doses above 15 kGy resulted in the formation of C=O and O-H groups, suggesting progressive degradation of the irradiated WPBs. This study demonstrates an efficient and environmentally friendly approach to recycling WPBs and reducing environmental impact
Keywords:
waste plastic bag, gamma irradiation, recycling
References
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[10]. A.T. Naikwadi, B.K. Sharma, K.D. Bhatt, P.A. Mahanwar, Gamma radiation processed polymeric materials for high performance applications: A review, Frontiers Chem., 10 (2022). https://doi.org/10.3389/fchem.2022.837111
[11]. E. Moradkhani , M. Entezam , M. Ahmadi , H. A. Khonakdar , H. Ruckdäschel , V. Altstaedt, Irradiation processing to modify HDPE molecular architecture: Correlation with irradiation conditions and polymer grade, Mater. Today Commun., 31 (2022). DOI:10.1016/j.mtcomm.2022.103462
[12]. W. Wang, X. Zhang, Z. Mao, W. Zhao, Effects of gamma radiation on the impact strength of polypropylene (PP)/high density polyethylene (HDPE) blends. Results Phys., 12 (2019). DOI:10.1016/j.rinp.2019.02.020
[13]. L. Mészáros, Y. Kara, T. Fekete, K. Molnár, Development of self-reinforced low-density polyethylene using γ-irradiation cross-linked polyethylene fibres, Rad. Phys. Chem., 170 (2020). https://doi.org/10.1016/j.radphyschem.2019.108655
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[16]. J. Zhang, V. Hirschberg, A. Goecke, M. Wilhelm, W. Yu, M. Orfgen, D. Rodrigue, Effect of mechanical recycling on molecular structure and rheological properties of high-density polyethylene (HDPE), Polym., 297 (2024). https://doi.org/10.1016/j.polymer.2024.126866