A comprehensive characterization of End-of-Life mobile phones for secondary material resources identification
| Autor: | Massimiliana Pietrantonio, Concetta Rao, Danilo Fontana, Stefano Pucciarmati, Federica Forte |
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| Přispěvatelé: | Fontana, D., Pietrantonio, M., Pucciarmati, S., Rao, C., Forte, F. |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Polymers 020209 energy Sample (material) Characterization Context (language use) 02 engineering and technology 010501 environmental sciences 01 natural sciences Electronic Waste chemistry.chemical_compound 0202 electrical engineering electronic engineering information engineering Aqua regia Recycling Process engineering Waste electrical and electronic equipment (WEEE) Waste Management and Disposal End-of-life mobile phone 0105 earth and related environmental sciences End-of-life mobile phones business.industry Plastic polymer Characterization (materials science) Identification (information) chemistry visual_art Electronic component Material resources visual_art.visual_art_medium business Plastics Cell Phone |
| Popis: | In this paper a full recognition of the different materials and valuable metals constituting mobile phones was performed. To this aim, a sample of 20 end-of-life devices has been dismantled and quantitative and qualitative chemical composition of the individual components was determined. From dismantling operations, it was found that plastics, metals, electronic components, batteries and displays account for 33%, 11%, 23%, 24% and 9% respectively, as a weighted average. Plastic parts of each item were analyzed by spectroscopy and then classified according to the plastic polymer type; it was found that polymeric components of mobile phones were made of five polymers: acrylonitrile-butadienestyrene, polycarbonate, polyurethane, polymethylmethacrylate and silicone. Electronic parts were leached by a twofold aqua regia treatment and the metal composition was determined: 15 elements were identified with concentration >0.2%. On the basis of these results, some considerations about the recycling context of end-of-life mobile phones were performed. |
| Databáze: | OpenAIRE |
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