Recycling of flame retarded waste polystyrene foams (EPS and XPS) to PS granules free of hexabromocyclododecane (HBCDD)
Martin Schlummer*, Andreas Maurer, Swetlana Wagner, Arthur Berrang, Tanja Fell and Fabian Knappich
Fraunhofer Institute IVV, Recycling Plastics, 85354 Freising, Germany
- *Corresponding Author:
- Martin Schlummer
Fraunhofer Institute IVV
Recycling Plastics, 85354 Freising, Germany
E-mail: [email protected]
Received Date: May 02, 2017 Accepted Date: May 08, 2017 Published Date: May 15, 2017
Citation: Schlummer M, Maurer A, Wagner S, Berrang A, Fell T, et al. (2017) Recycling of Flame Retarded Waste Polystyrene Foams (EPS and XPS) to PS Granules Free of Hexabromocyclododecane (HBCDD). Adv Recycling Waste Manag 2: 131. doi: 10.4172/2475-7675.1000131
Copyright: © 2017 Schlummer M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Expanded and extruded polystyrene (EPS and XPS) belong to the most often used insulation materials and with respect to this application-both material have been equipped with the brominated flame retardant hexabromocyclododecane (HBCDD) for more than 50 years. After HBCDD had been identified as a substance of very high concern, it was set under control of the Stockholm Convention and the European Reach legislation. In consequence, the use of HBCDD in insulation materials is currently phased out and waste insulation material made of HBCDD equipped EPS or XPS cannot further be subjected to state-of-the art mechanical recycling. However, as the majority of the formerly produced HBCDD equipped EPS and XPS is still in use as insulation material, more sophisticated recycling approaches are currently investigated. This study investigates a solvent based recycling process, which dissolves polystyrene from insulation waste and eliminates not only insoluble waste components but also co-dissolved HBCDD. The study investigates the efficiency of HBCDD removal as well as mechanical properties of recycled PS produced by this process.