| Title | Recycling Potential for Non-Valorized Plastic Fractions from Electrical and Electronic Waste |
|---|---|
| ID_Doc | 18319 |
| Authors | Strobl, L; Diefenhardt, T; Schlummer, M; Leege, T; Wagner, S |
| Title | Recycling Potential for Non-Valorized Plastic Fractions from Electrical and Electronic Waste |
| Year | 2021 |
| Published | Recycling, 6.0, 2 |
| Abstract | This paper describes a study for waste of electrical and electronic equipment (WEEE) to characterise the plastic composition of different mixed plastic fractions. Most of the samples studied are currently excluded from material recycling and arise as side streams in state-of-the-art plastics recycling plants. These samples contain brominated flame retardants (BFR) or other substances of concern listed as persistent organic pollutants or in the RoHS directive. Seventeen samples, including cathode ray tube (CRT) monitors, CRT televisions, flat screens such as liquid crystal displays, small domestic appliances, and information and communication technology, were investigated using density- and dissolution-based separation processes. The total bromine and chlorine contents of the samples were determined by X-ray fluorescence spectroscopy, indicating a substantial concentration of both elements in density fractions above 1.1 g/cm(3), most significantly in specific solubility classes referring to ABS and PS. This was further supported by specific flame retardant analysis. It was shown that BFR levels of both polymers can be reduced to levels below 1000 ppm by dissolution and precipitation processes enabling material recycling in compliance with current legislation. As additional target polymers PC and PC-ABS were also recycled by dissolution but did not require an elimination of BFR. Finally, physicochemical investigations of recycled materials as gel permeation chromatography, melt flow rate, and differential scanning calorimetry suggest a high purity and indicate no degradation of the technical properties of the recycled polymers. |
| https://www.mdpi.com/2313-4321/6/2/33/pdf?version=1621497551 |
Similar Articles
| ID | Score | Article |
|---|---|---|
13302
|
Bill, A; Haarman, A; Gasser, M; Böni, H; Rösslein, M; Wäger, PA Characterizing plastics from large household appliances: Brominated flame retardants, other additives and density profiles(2022) | |
| 19749
|
Alassali, A; Barouta, D; Tirion, H; Moldt, Y; Kuchta, K Towards a high quality recycling of plastics from waste electrical and electronic equipment through separation of contaminated fractions(2020) | |
| 21718
|
Wagner, F; Peeters, JR; De Keyzer, J; Janssens, K; Duflou, JR; Dewulf, W Towards a more circular economy for WEEE plastics - Part B: Assessment of the technical feasibility of recycling strategies(2019) | |
| 24306
|
Jia, CM; Das, P; Kim, I; Yoon, YJ; Tay, CY; Lee, JM Applications, treatments, and reuse of plastics from electrical and electronic equipment(2022) | |
| 10956
|
Hennebert, P Concentrations Of Brominated Flame Retardants In Plastics Of Electrical And Electronic Equipment, Vehicles, Construction, Textiles And Non-Food Packaging: A Review Of Occurrence And Management(2020) | |
| 27423
|
Wagner, F; Peeters, JR; De Keyzer, J; Janssens, K; Duflou, JR; Dewulf, W Towards a more circular economy for WEEE plastics - Part A: Development of innovative recycling strategies(2019) | |
| 26346
|
Eriksen, MK; Pivnenko, K; Olsson, ME; Astrup, TF Contamination in plastic recycling: Influence of metals on the quality of reprocessed plastic(2018) | |
| 17492
|
Boudewijn, A; Peeters, JR; Cattrysse, D; Dewulf, W; Campadello, L; Accili, A; Duflou, JR Systematic Quantification of Waste Compositions: A Case Study for Waste of Electric and Electronic Equipment Plastics in the European Union(2022)Sustainability, 14, 12 | |
| 21899
|
Eriksen, MK; Christiansen, JD; Daugaard, AE; Astrup, TF Closing the loop for PET, PE and PP waste from households: Influence of material properties and product design for plastic recycling(2019) | |
| 17933
|
Pelto, J; Barreto, C; Anwar, H; Strobl, L; Schlummer, M Compatibilized PC/ABS blends from solvent recycled PC and ABS polymers from electronic equipment waste(2023) |