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Behaviour and resistance of selected model plastics to accelerated weathering under different environmental conditions

  • MaUS is an acronym for ”Material und Umweltsimulationen“. Plastics are in the focus of environmental politics due to their long term behaviour and therefore to their persistence. Not only that they appear as visible contaminants in the sea and on the beach, but their unknown behaviour concerning their additives as well as the related transformation products are anxious. Therefore, a certified reference procedure must be established to provide a method for testing plastics. The aim of this project is the development of fast motion standard reference methods for testing plastics regarding to their environmental compatibility. To establish these testing methods polystyrene (PS) and polypropylene (PP) with environmental relevant brominated flame retardants were used, known for their persistent bioaccumulative and toxic (PBT) properties. In case of PS the material contains 1 wt.% of 1,2,5,6,9,10-hexabromo-cyclododecan (HBCD) and in case of PP 0.1 wt.% of a defined bromodiphenyletherMaUS is an acronym for ”Material und Umweltsimulationen“. Plastics are in the focus of environmental politics due to their long term behaviour and therefore to their persistence. Not only that they appear as visible contaminants in the sea and on the beach, but their unknown behaviour concerning their additives as well as the related transformation products are anxious. Therefore, a certified reference procedure must be established to provide a method for testing plastics. The aim of this project is the development of fast motion standard reference methods for testing plastics regarding to their environmental compatibility. To establish these testing methods polystyrene (PS) and polypropylene (PP) with environmental relevant brominated flame retardants were used, known for their persistent bioaccumulative and toxic (PBT) properties. In case of PS the material contains 1 wt.% of 1,2,5,6,9,10-hexabromo-cyclododecan (HBCD) and in case of PP 0.1 wt.% of a defined bromodiphenylether (BDE-209) were chosen. These additives are known as substances of very high concern (SVHC). Furthermore, polycarbonate (PC), which is still used as material in baby flasks and releases Bisphenol A (BPA), an estrogenic active substance is used as a model material. Finally PTFE is used regarding to its importance as a source for two ubiquitous environmental substances PFOS and PFOA, whose toxicological effects are still incompletely known. The focus in this current work is set on the transfer of potential pollutants out of the applied materials mentioned above into environmental compartments like water or soil. Here an accelerated aging concept should be developed to shortened time consuming natural processes. For these resulting simulations a programmable weathering chamber with dry and wet periods and with high and low temperatures is used. These programmes run for several weeks and according to a defined sampling schedule water samples were taken. After a distinct clean-up procedure the samples were analysed by HPLC-UV, LC-MS/MS or GC-MS. Of most interest in case of flame retardants are photocatalytic transformation products. Therefore, a non-target-screening resp. a suspected target-screening by LC-MS/MS and HRMS must be applied.zeige mehrzeige weniger

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Metadaten
Autoren/innen:Hassan Iznaguen
Koautoren/innen:Robert Köppen, Christian Jung, Katrin Oleszak, Angelika Witt, Christian Piechotta
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
Organisationseinheit der BAM:1 Analytische Chemie; Referenzmaterialien
1 Analytische Chemie; Referenzmaterialien / 1.7 Organische Spuren- und Lebensmittelanalytik
1 Analytische Chemie; Referenzmaterialien / 1.8 Umweltanalytik
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Sanitär- und Kommunaltechnik; Umwelttechnik
Freie Schlagwörter:BFR; Environmental simulation; Passive sampling
Themenfelder/Aktivitätsfelder der BAM:Umwelt
Umwelt / Umweltschadstoffe
Veranstaltung:8th European Weathering Symposium EWS
Veranstaltungsort:Wien, Austria
Beginndatum der Veranstaltung:20.09.2017
Enddatum der Veranstaltung:22.09.2017
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:06.12.2017
Referierte Publikation:Nein