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The effect of infill density on the fire properties of polylactic acid 3D printed parts: A short communication
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0003-4720-5380
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
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2022 (English)In: Polymer testing, ISSN 0142-9418, E-ISSN 1873-2348, Vol. 111, article id 107594Article in journal (Refereed) Published
Abstract [en]

The use of 3D printing technology for manufacturing construction materials is gaining popularity, however, only a few studies have reported the fire behavior of such parts. In this research, the fire properties of 3D printed polylactide acid (PLA) parts with varying infill densities along with the tensile properties were analysed. The results from the fire tests showed that increasing the infill density increased the fuel load, which sustained combustion. Hence, the peak heat release rate and total heat release increased with an increment in infill density percentage. It was also observed that the increasing infill density had no effect on the flammability rating of the parts due to the constant shell thickness used for all the parts. In addition, the tensile strength and ductility of the parts increased with density as a porous part is more susceptible to failure than a solid homogeneous part.

Place, publisher, year, edition, pages
Elsevier, 2022. Vol. 111, article id 107594
Keywords [en]
3D printing, Infill density, Fire properties
National Category
Materials Chemistry Other Physics Topics
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-91241DOI: 10.1016/j.polymertesting.2022.107594ISI: 000799991800002Scopus ID: 2-s2.0-85129509953OAI: oai:DiVA.org:ltu-91241DiVA, id: diva2:1669804
Note

Validerad;2022;Nivå 2;2022-06-10 (hanlid)

Available from: 2022-06-15 Created: 2022-06-15 Last updated: 2023-09-05Bibliographically approved

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Mensah, Rhoda AfriyieFörsth, MichaelSas, GabrielDas, Oisik

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Mensah, Rhoda AfriyieEdström, David AronssonLundberg, OskarFörsth, MichaelSas, GabrielDas, Oisik
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