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Nano-sized by-products from metal 3D printing, composite manufacturing and fabric production
RISE - Research Institutes of Sweden, Swerea, Swerea IVF, Energi och miljö.
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2016 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 139, 1224-1233 p.Article in journal (Refereed) Published
Abstract [en]

Recently, the health and environmental perspective of nano-materials has gained attention. Most previous work focused on Engineered Nanoparticles (ENP). This paper examines some recently introduced production routes in terms of generated nano-sized by-products. A discussion on the hazards of emitting such particles and fibers is included. Fine by-products were found in recycled metal powder after 3D printing by Selective Laser Melting (SLM). The process somehow generated small round metal particles (∌1–2 ÎŒm) that are possibly carcinogenic and respirable, but not small enough to enter by skin-absorption. With preventive measures like closed handling and masks, any health related effects can be prevented. The composite manufacturing in particular generated ceramic and carbonaceous particles that are very small and respirable but do not appear to be intrinsically toxic. The smallest features in agglomerates were about 30 nm. Small particles and fibers that were not attached in agglomerates were found in a wide range of sizes, from 1 ÎŒm and upwards. Preventive measures like closed handling and masks are strongly recommended. In contrast, the more traditional production route of fabric production is investigated. Here, brushing residue and recycled wool from fabric production contained few nano-sized by-products. © 2016 Elsevier Ltd

Place, publisher, year, edition, pages
2016. Vol. 139, 1224-1233 p.
Keyword [en]
Agglomeration; Manufacture; Nanoparticles; Powder metal products; Powder metals; Printing; Recycling, Carbonaceous particles; Composite manufacturing; Engineered nanoparticles; Preventive measures; Production route; Selective laser melting; Skin absorption; Ultrafine particle, 3D printers
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Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-28357DOI: 10.1016/j.jclepro.2016.08.141Scopus ID: 2-s2.0-84995543561OAI: oai:DiVA.org:ri-28357DiVA: diva2:1079629
Available from: 2017-03-09 Created: 2017-03-09 Last updated: 2017-11-29Bibliographically approved

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