Volatile and semivolatile organic compound emissions from polymers used in commercial products during thermal degradation

Heliyon
Miyuki Noguchi, Akihiro Yamasaki

Abstract

Emissions of volatile and semivolatile organic compounds from various kinds of polymer sheets during thermal degradation process were determined by the passive flux sampling method. The polymer sheets used were commercial products made of: polyethylene (PE), ethylene-vinyl acetate (EVA), polypropylene (PP), polyacetal (POM), polycarbonate (PC)), and polymer sheet samples: poly (methyl methacrylate) (PMMA), polyethylene terephthalate (PET), polystyrene (PS) and four types of poly vinyl chloride (PVC) with different contents of additives; (bis(2-ethylhexyl)phthalate (DEHP)), and triphenylphosphine (TPP)). The emission fluxes from the polymer sheets were measured for up to 30 days stored under a constant temperature (25-75 °C). Emission of various kinds of chemicals were observed from PVC sheets including and products of polymer degradation, while emission of hydrocarbons were dominant from PE, PP and EVA, and the emission of an additive (DEP) only was observed from PMMA, PET, POM and PC. The TVOC (total VOC) emission rates from PVC sheets with DEHP and TPP (soft PVCs) were in the range of 30-120 mg m-2 h-1 at 50 °C, which were much higher than the TVOC emission rates from other polymers. The emission rates for these chemicals for...Continue Reading

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Citations

Jul 3, 2020·Materials·Mateusz GalejaAndrzej Szymon Swinarew
Jan 30, 2021·Journal of Hazardous Materials·Filipa O GomesNuno Ratola
May 20, 2021·Journal of Hazardous Materials·Katarzyna JędruchniewiczPatryk Oleszczuk
Nov 12, 2021·Environmental Science and Pollution Research International·Jana RůžičkováAnna Grobelak

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Methods Mentioned

BETA
thermal stress

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