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Research Trends in Flotation of Waste-plastics and Its Use as Functional Materials
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This review covers research trends in using flotation separation to sort and recycle mixed waste plastics. Researchers found that flotation is an effective physical method for separating polymers by type, enabling more efficient recycling and recovery of valuable plastic raw materials. The review also covers emerging approaches for upcycling recycled polymers into functional materials.
In recent years, there is an increasing interest in environmental friendly treatment of waste-plastics in terms of the generation of microplastics. Accordingly, the recycling of waste-plastics is very important because it provides advantages of volume reduction, mitigation of carbon dioxide emission, and reproduction of value-added products. In particular, in order to recycle the eco-friendly waste-plastics, it is necessary to use a physical separation methods, and among them, flotation separation, which can separate material (i.e., polymer component) in waste-plastics is well known as a very effective separation method in terms of material recycle. Therefore, in this review, the research trend of flotation separation for effective separation of mixture waste-plastics was investigated. In addition, through the reported research results, approaches to use as new functional materials from polymers, which are raw materials for waste-plastics, are summarized.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.