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Study investigates how to reduce nanoparticle emissions during 3D printing

Date: 13/9/2017

Environmental Science & Technology has published a study entitled “Characterisation and Control of Nanoparticle Emission during 3D Printing”. According to the abstract, the study aimed to evaluate particle emission characteristics and to evaluate several control methods used to reduce particle emissions during 3D printing.

Experiments for particle characterisation were conducted to measure particle number concentrations, emission rates, morphology, and chemical compositions under manufacturer-recommended and consistent-temperature conditions with seven different thermoplastic materials in an exposure chamber. Eight different combinations of the different control methods were tested, including an enclosure, an extruder suction fan, an enclosure ventilation fan, and several types of filter media.

The abstract states that among the eight control methods tested, the enclosure with a high-efficiency particulate air (HEPA) filter had the highest removal effectiveness (99.95 %) of nanoparticles. The authors’ recommendations for reducing particle emissions include applying a low temperature, using low-emitting materials, and instituting control measures like using an enclosure around the printer in conjunction with an appropriate filter (e.g., HEPA filter) during 3D printing.

Source: ACS Publication via Bergeson & Campbell, P.C.

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0.335 nm is the theoretical thickness of graphene.