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Junaid Saleem, Moghal Zubair Khalid Baig, Usman Bin Shahid, Rafael Luque, Gordon McKay. Mixed plastics waste valorization to high-added value products via thermally induced phase separation and spin-casting. Green Energy&Environment, 2024, 9(10): 1627-1640. doi: 10.1016/j.gee.2023.08.004
Citation: Junaid Saleem, Moghal Zubair Khalid Baig, Usman Bin Shahid, Rafael Luque, Gordon McKay. Mixed plastics waste valorization to high-added value products via thermally induced phase separation and spin-casting. Green Energy&Environment, 2024, 9(10): 1627-1640. doi: 10.1016/j.gee.2023.08.004
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Mixed plastics waste valorization to high-added value products via thermally induced phase separation and spin-casting

doi: 10.1016/j.gee.2023.08.004

  • a. Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Qatar;

  • b. Center for Advanced Materials, Qatar University, Qatar;

  • c. Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China;

  • d. Universidad ECOTEC, Km 13. 5 Samborondón, Samborondón, EC092302, Ecuador

Funds:

This publication was made possible by NPRP grant number NPRP12S-0325-190443 from the Qatar National Research Fund (a member of the Qatar Foundation). The authors would also like to acknowledge Core Labs, Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation for providing assistance in SEM and XPS.

  • Received date 04 July 2023, Accepted date 23 August 2023, RevRecd date 16 August 2023, Publish date 30 August 2023,
    Abstract
  • Plastic waste is an underutilized resource that has the potential to be transformed into value-added materials. However, its chemical diversity leads to cost-intensive sorting techniques, limiting recycling and upcycling opportunities. Herein, we report an open-loop recycling method to produce graded feedstock from mixed polyolefins waste, which makes up 60% of total plastic waste. The method uses heat flow scanning to quantify the composition of plastic waste and resolves its compatibility through controlled dissolution. The resulting feedstock is then used to synthesize blended pellets, porous sorbents, and superhydrophobic coatings via thermally induced phase separation and spin-casting. The hybrid approach broadens the opportunities for reusing plastic waste, which is a step towards creating a more circular economy and better waste management practices.

     

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