Cargando…

Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses

Fused Granular Fabrication (FGF) or screw-extrusion based 3D printing for polymers is a less diffused alternative to filament-based Additive Manufacturing (AM). Its greatest advantage lies in superior sustainability; in fact, polymer granules can be used to directly feed an FGF printer, reducing the...

Descripción completa

Detalles Bibliográficos
Autores principales: Fontana, Luca, Giubilini, Alberto, Arrigo, Rossella, Malucelli, Giulio, Minetola, Paolo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9460545/
https://www.ncbi.nlm.nih.gov/pubmed/36080605
http://dx.doi.org/10.3390/polym14173530
_version_ 1784786773341110272
author Fontana, Luca
Giubilini, Alberto
Arrigo, Rossella
Malucelli, Giulio
Minetola, Paolo
author_facet Fontana, Luca
Giubilini, Alberto
Arrigo, Rossella
Malucelli, Giulio
Minetola, Paolo
author_sort Fontana, Luca
collection PubMed
description Fused Granular Fabrication (FGF) or screw-extrusion based 3D printing for polymers is a less diffused alternative to filament-based Additive Manufacturing (AM). Its greatest advantage lies in superior sustainability; in fact, polymer granules can be used to directly feed an FGF printer, reducing the time, cost and energy of producing a part. Moreover, with this technology, a circular economy approach involving the use of pellets made from plastic waste can be easily implemented. Polylactic Acid (PLA) pellets were processed at different printing speeds and with different infill percentages on a customized version of a commercial Prusa i3 Plus 3D printer modified with a Mahor screw extruder. For the characterization of the 3D printed samples, rheological, thermal, mechanical and porosity analyses were carried out. In addition, the energy consumption of the 3D printer was monitored during the production of the specimens. The results showed that a higher printing speed leads to lower energy consumption, without compromising material strength, whereas a slower printing speed is preferable to increase material stiffness.
format Online
Article
Text
id pubmed-9460545
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-94605452022-09-10 Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses Fontana, Luca Giubilini, Alberto Arrigo, Rossella Malucelli, Giulio Minetola, Paolo Polymers (Basel) Article Fused Granular Fabrication (FGF) or screw-extrusion based 3D printing for polymers is a less diffused alternative to filament-based Additive Manufacturing (AM). Its greatest advantage lies in superior sustainability; in fact, polymer granules can be used to directly feed an FGF printer, reducing the time, cost and energy of producing a part. Moreover, with this technology, a circular economy approach involving the use of pellets made from plastic waste can be easily implemented. Polylactic Acid (PLA) pellets were processed at different printing speeds and with different infill percentages on a customized version of a commercial Prusa i3 Plus 3D printer modified with a Mahor screw extruder. For the characterization of the 3D printed samples, rheological, thermal, mechanical and porosity analyses were carried out. In addition, the energy consumption of the 3D printer was monitored during the production of the specimens. The results showed that a higher printing speed leads to lower energy consumption, without compromising material strength, whereas a slower printing speed is preferable to increase material stiffness. MDPI 2022-08-28 /pmc/articles/PMC9460545/ /pubmed/36080605 http://dx.doi.org/10.3390/polym14173530 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fontana, Luca
Giubilini, Alberto
Arrigo, Rossella
Malucelli, Giulio
Minetola, Paolo
Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses
title Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses
title_full Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses
title_fullStr Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses
title_full_unstemmed Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses
title_short Characterization of 3D Printed Polylactic Acid by Fused Granular Fabrication through Printing Accuracy, Porosity, Thermal and Mechanical Analyses
title_sort characterization of 3d printed polylactic acid by fused granular fabrication through printing accuracy, porosity, thermal and mechanical analyses
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9460545/
https://www.ncbi.nlm.nih.gov/pubmed/36080605
http://dx.doi.org/10.3390/polym14173530
work_keys_str_mv AT fontanaluca characterizationof3dprintedpolylacticacidbyfusedgranularfabricationthroughprintingaccuracyporositythermalandmechanicalanalyses
AT giubilinialberto characterizationof3dprintedpolylacticacidbyfusedgranularfabricationthroughprintingaccuracyporositythermalandmechanicalanalyses
AT arrigorossella characterizationof3dprintedpolylacticacidbyfusedgranularfabricationthroughprintingaccuracyporositythermalandmechanicalanalyses
AT malucelligiulio characterizationof3dprintedpolylacticacidbyfusedgranularfabricationthroughprintingaccuracyporositythermalandmechanicalanalyses
AT minetolapaolo characterizationof3dprintedpolylacticacidbyfusedgranularfabricationthroughprintingaccuracyporositythermalandmechanicalanalyses