Large-Format Additive Manufacturing and Machining Using High-Melt-Temperature Polymers. Part I: Real-Time Particulate and Gas-Phase Emissions.

ABSTRACT: The literature on emissions during material extrusion additive manufacturing with 3-D printers is expanding; however, there is a paucity of data for large-format additive manufacturing (LFAM) machines that can extrude high-melt-temperature polymers. Emissions from two LFAM machines were monitored during extrusion of six polymers: acrylonitrile butadiene styrene (ABS), polycarbonate (PC), high-melt-temperature polysulfone (PSU), poly(ether sulfone) (PESU), polyphenylene sulfide (PPS), and Ultem (poly(ether imide)). Particle number, total volatile organic compound (TVOC), carbon monoxide (CO), and carbon dioxide (CO₂) concentrations were monitored in real-time. Particle emission rate values (no./min) were as follows: ABS (1.7 × 10¹¹ to 7.7 × 10¹³), PC (5.2 ×

SUBMITTER: Stefaniak AB 

PROVIDER: S-EPMC9380575 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature