Cargando…

Shape fidelity and structure of 3D printed high consistency nanocellulose

The aim of the present study was to investigate the additive manufacturing process for high consistency nanocellulose. Unlike thermoformable plastics, wood derived nanocelluloses are typically processed as aqueous dispersions because they are not melt-processable on their own. The ability to use nan...

Descripción completa

Detalles Bibliográficos
Autores principales: Klar, Ville, Pere, Jaakko, Turpeinen, Tuomas, Kärki, Pyry, Orelma, Hannes, Kuosmanen, Petri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405753/
https://www.ncbi.nlm.nih.gov/pubmed/30846757
http://dx.doi.org/10.1038/s41598-019-40469-x
_version_ 1783401156127490048
author Klar, Ville
Pere, Jaakko
Turpeinen, Tuomas
Kärki, Pyry
Orelma, Hannes
Kuosmanen, Petri
author_facet Klar, Ville
Pere, Jaakko
Turpeinen, Tuomas
Kärki, Pyry
Orelma, Hannes
Kuosmanen, Petri
author_sort Klar, Ville
collection PubMed
description The aim of the present study was to investigate the additive manufacturing process for high consistency nanocellulose. Unlike thermoformable plastics, wood derived nanocelluloses are typically processed as aqueous dispersions because they are not melt-processable on their own. The ability to use nanocellulose directly in additive manufacturing broadens the possibilities regarding usable raw materials and achievable properties thereof. Modern additive manufacturing systems are capable of depositing nanocellulose with micrometer precision, which enables the printing of accurate three-dimensional wet structures. Typically, these wet structures are produced from dilute aqueous fibrillar dispersions. As a consequence of the high water content, the structures deform and shrink during drying unless the constructs are freeze-dried. While freeze-drying preserves the geometry, it results in high porosity which manifests as poor mechanical and barrier properties. Herein, we study an additive manufacturing process for high consistency enzymatically fibrillated cellulose nanofibers in terms of printability, shape retention, structure, and mechanical properties. Particular emphasis is placed on quantitative shape analysis based on 3D scanning, point cloud analysis, and x-ray microtomography. Despite substantial volumetric as well as anisotropic deformation, we demonstrate repeatability of the printed construct and its properties.
format Online
Article
Text
id pubmed-6405753
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-64057532019-03-11 Shape fidelity and structure of 3D printed high consistency nanocellulose Klar, Ville Pere, Jaakko Turpeinen, Tuomas Kärki, Pyry Orelma, Hannes Kuosmanen, Petri Sci Rep Article The aim of the present study was to investigate the additive manufacturing process for high consistency nanocellulose. Unlike thermoformable plastics, wood derived nanocelluloses are typically processed as aqueous dispersions because they are not melt-processable on their own. The ability to use nanocellulose directly in additive manufacturing broadens the possibilities regarding usable raw materials and achievable properties thereof. Modern additive manufacturing systems are capable of depositing nanocellulose with micrometer precision, which enables the printing of accurate three-dimensional wet structures. Typically, these wet structures are produced from dilute aqueous fibrillar dispersions. As a consequence of the high water content, the structures deform and shrink during drying unless the constructs are freeze-dried. While freeze-drying preserves the geometry, it results in high porosity which manifests as poor mechanical and barrier properties. Herein, we study an additive manufacturing process for high consistency enzymatically fibrillated cellulose nanofibers in terms of printability, shape retention, structure, and mechanical properties. Particular emphasis is placed on quantitative shape analysis based on 3D scanning, point cloud analysis, and x-ray microtomography. Despite substantial volumetric as well as anisotropic deformation, we demonstrate repeatability of the printed construct and its properties. Nature Publishing Group UK 2019-03-07 /pmc/articles/PMC6405753/ /pubmed/30846757 http://dx.doi.org/10.1038/s41598-019-40469-x Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Klar, Ville
Pere, Jaakko
Turpeinen, Tuomas
Kärki, Pyry
Orelma, Hannes
Kuosmanen, Petri
Shape fidelity and structure of 3D printed high consistency nanocellulose
title Shape fidelity and structure of 3D printed high consistency nanocellulose
title_full Shape fidelity and structure of 3D printed high consistency nanocellulose
title_fullStr Shape fidelity and structure of 3D printed high consistency nanocellulose
title_full_unstemmed Shape fidelity and structure of 3D printed high consistency nanocellulose
title_short Shape fidelity and structure of 3D printed high consistency nanocellulose
title_sort shape fidelity and structure of 3d printed high consistency nanocellulose
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405753/
https://www.ncbi.nlm.nih.gov/pubmed/30846757
http://dx.doi.org/10.1038/s41598-019-40469-x
work_keys_str_mv AT klarville shapefidelityandstructureof3dprintedhighconsistencynanocellulose
AT perejaakko shapefidelityandstructureof3dprintedhighconsistencynanocellulose
AT turpeinentuomas shapefidelityandstructureof3dprintedhighconsistencynanocellulose
AT karkipyry shapefidelityandstructureof3dprintedhighconsistencynanocellulose
AT orelmahannes shapefidelityandstructureof3dprintedhighconsistencynanocellulose
AT kuosmanenpetri shapefidelityandstructureof3dprintedhighconsistencynanocellulose