4 Material und Umwelt
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- 2021 (2) (entfernen)
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- Beitrag zu einem Tagungsband (2) (entfernen)
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- Englisch (2)
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- Bauprodukte (1)
- Chamber measurement (1)
- Chemical characterization (1)
- Emissionen (1)
- FFF-3D-Printer (1)
- Geruchsmessung (1)
- Perceived Intensity (1)
- UFP (1)
- VOC (1)
Organisationseinheit der BAM
- 4.2 Material-Mikrobiom Wechselwirkungen (2) (entfernen)
Previous studies have shown that desktop 3D printers (Fused Filament Fabrication) emit high numbers of particulate matter, mainly as ultrafine particles (UFP, particle diameter less than 100 nm). However, the chemical composition of emitted particles has been less extensively investigated. In this study, we therefore focused on the chemical composition of particles emitted from 3D printing. The measurements were conducted in a 1 m³ emission test chamber. Emitted particles were sampled by a 13-stage low-pressure cascade impactor onto aluminum foils and then analyzed by TD-GC/MS to identify their organic compounds. Nine commercial filaments made from basic polymers such as Acrylonitrile Butadiene Styrene (ABS), Acrylonitrile Styrene Acrylate (ASA), Polycarbonate (PC), Poly(methyl methacrylate) (PMMA), Nylon, High Performance Polystyrene (HIPS) and a copper-filled Polylactide (PLA) were investigated. The results show that the organic components of the particles are primarily plastic additives such as plasticizer, antioxidant agents, lubricants, UV-absorbers and UV-stabilizers from the filaments.
Indoor air quality is affected by the emission of volatile organic compounds (VOC) or the odour from building products. Odours can be measured by applying the standard ISO 16000-28:2020.
In the study presented here proposals for further technical development of the ISO method are presented. The sampling procedure and evaluation
method of the perceived intensity are investigated in particular because they have a major influence on reproducibility of measurement results.