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Outdoor weathering of HDPE containers filled with nitric acid

  • Jerrycans made from three different types of high-density polyethylene (HDPE) were exposed outdoors, for one Berlin summer season. They were filled with a 55 percent nitric acid solution (HN03), pure water, or air, and half of them were protected from sunlight by an UV absorbing canvas. Thus, the separate effects of UV radiation and nitric acid could be compared to the combined impact. Combined impact was mainly affected by decomposition of nitric acid, resulting in presence of reactive nitrogen oxides, increased oxygen partial pressure, and UV radiation energy, simultaneously in vapour phase. To investigate the degradation effects after the outdoor exposure, jerrycans were exposed to a so called hydraulic internal pressure test, similar to an approval test for dangerous goods packaging. After combined impact of UV radiation and nitric acid, internal pressure tests showed very fast failures, whereas after separate impacts no remarkable deteriorations were observed, compared to unagedJerrycans made from three different types of high-density polyethylene (HDPE) were exposed outdoors, for one Berlin summer season. They were filled with a 55 percent nitric acid solution (HN03), pure water, or air, and half of them were protected from sunlight by an UV absorbing canvas. Thus, the separate effects of UV radiation and nitric acid could be compared to the combined impact. Combined impact was mainly affected by decomposition of nitric acid, resulting in presence of reactive nitrogen oxides, increased oxygen partial pressure, and UV radiation energy, simultaneously in vapour phase. To investigate the degradation effects after the outdoor exposure, jerrycans were exposed to a so called hydraulic internal pressure test, similar to an approval test for dangerous goods packaging. After combined impact of UV radiation and nitric acid, internal pressure tests showed very fast failures, whereas after separate impacts no remarkable deteriorations were observed, compared to unaged jerrycans.zeige mehrzeige weniger

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Metadaten
Autor*innen:Anja Geburtig, Thomas Goedecke, Volker WachtendorfORCiD
Persönliche Herausgeber*innen:M.A. Sek, V. Rouillard, S.W. Bigger
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):19th IAPRI World conference on packaging (Proceedings)
Jahr der Erstveröffentlichung:2014
Herausgeber (Institution):Victoria University, Melbourne
Erste Seite:556
Letzte Seite:560
Freie Schlagwörter:High-density polyethylene HDPE; Nitric acid HNO3; Outdoor exposure; UV radiation; Weathering
Veranstaltung:19th IAPRI World conference on packaging
Veranstaltungsort:Melbourne, Australia
Beginndatum der Veranstaltung:15.06.2014
Enddatum der Veranstaltung:18.06.2014
ISBN:978-1-86272-699-4
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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