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Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent

This paper shows how fused decomposition modeling (FDM), as a three-dimensional (3D) printing technology, can engineer lightweight porous foams with controllable density. The tactic is based on the 3D printing of Poly Lactic Acid filaments with a chemical blowing agent, as well as experiments to exp...

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Detalles Bibliográficos
Autores principales: Damanpack, A. R., Sousa, André, Bodaghi, M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398240/
https://www.ncbi.nlm.nih.gov/pubmed/34442488
http://dx.doi.org/10.3390/mi12080866
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author Damanpack, A. R.
Sousa, André
Bodaghi, M.
author_facet Damanpack, A. R.
Sousa, André
Bodaghi, M.
author_sort Damanpack, A. R.
collection PubMed
description This paper shows how fused decomposition modeling (FDM), as a three-dimensional (3D) printing technology, can engineer lightweight porous foams with controllable density. The tactic is based on the 3D printing of Poly Lactic Acid filaments with a chemical blowing agent, as well as experiments to explore how FDM parameters can control material density. Foam porosity is investigated in terms of fabrication parameters such as printing temperature and flow rate, which affect the size of bubbles produced during the layer-by-layer fabrication process. It is experimentally shown that printing temperature and flow rate have significant effects on the bubbles’ size, micro-scale material connections, stiffness and strength. An analytical equation is introduced to accurately simulate the experimental results on flow rate, density, and mechanical properties in terms of printing temperature. Due to the absence of a similar concept, mathematical model and results in the specialized literature, this paper is likely to advance the state-of-the-art lightweight foams with controllable porosity and density fabricated by FDM 3D printing technology.
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spelling pubmed-83982402021-08-29 Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent Damanpack, A. R. Sousa, André Bodaghi, M. Micromachines (Basel) Article This paper shows how fused decomposition modeling (FDM), as a three-dimensional (3D) printing technology, can engineer lightweight porous foams with controllable density. The tactic is based on the 3D printing of Poly Lactic Acid filaments with a chemical blowing agent, as well as experiments to explore how FDM parameters can control material density. Foam porosity is investigated in terms of fabrication parameters such as printing temperature and flow rate, which affect the size of bubbles produced during the layer-by-layer fabrication process. It is experimentally shown that printing temperature and flow rate have significant effects on the bubbles’ size, micro-scale material connections, stiffness and strength. An analytical equation is introduced to accurately simulate the experimental results on flow rate, density, and mechanical properties in terms of printing temperature. Due to the absence of a similar concept, mathematical model and results in the specialized literature, this paper is likely to advance the state-of-the-art lightweight foams with controllable porosity and density fabricated by FDM 3D printing technology. MDPI 2021-07-23 /pmc/articles/PMC8398240/ /pubmed/34442488 http://dx.doi.org/10.3390/mi12080866 Text en © 2021 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
Damanpack, A. R.
Sousa, André
Bodaghi, M.
Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent
title Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent
title_full Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent
title_fullStr Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent
title_full_unstemmed Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent
title_short Porous PLAs with Controllable Density by FDM 3D Printing and Chemical Foaming Agent
title_sort porous plas with controllable density by fdm 3d printing and chemical foaming agent
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398240/
https://www.ncbi.nlm.nih.gov/pubmed/34442488
http://dx.doi.org/10.3390/mi12080866
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