Journal
MOLECULES
Volume 27, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/molecules27123814
Keywords
3D printing; volatile organic compounds; VOCs; emissions; indoor air; thermoplastics
Funding
- National Science Centre (Poland) [2018/31/N/ST4/00809]
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This study characterizes the emission of volatile organic compounds (VOCs) from four different polymer materials during fused filament fabrication (FFF) 3D printing. The emission rates of VOCs differ significantly between the different polymers.
In this short communication we characterize the emission of volatile organic compounds (VOCs) from fused filament fabrication (FFF) 3D printing using four polymer materials, namely polyethylene terephthalate glycol-modified (PETG), acrylonitrile styrene acrylate (ASA), Nylon, and acrylonitrile butadiene styrene (ABS). Detailed emission profiles are obtained during thermal degradation of the polymers as a function of temperature and also in real-time during 3D printing. Direct quantitative measurement was performed using proton transfer reaction time-of-flight mass spectrometry (PTR-ToF-MS). Qualitative determination of the volatiles emitted from the printed elements at various temperatures was accomplished using gas chromatography-mass spectrometry (GC-MS). The emission rates of VOCs differ significantly between the different polymer filaments, with the emission from Nylon and PETG more than an order of magnitude lower than that of ABS.
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