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3D printed biodegradable composites: An insight into mechanical properties of PLA/chitosan scaffold

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Title: 3D printed biodegradable composites: An insight into mechanical properties of PLA/chitosan scaffold
Authors: Singh, S
Singh, G
Prakash, C
Ramakrishna, S
Lamberti, L
Pruncu, CI
Item Type: Journal Article
Abstract: Three-dimensional (3D) printing is a frontier manufacturing approach with great potential to benefit biomedical and patient care sectors. In the last decades, different types of biomedical materials were investigated in purpose of developing medical tools and devices. The present study attempts to assess mechanical performances (namely: tensile, compression, and flexural) of the newly developed chitosan-reinforced poly-lactic-acid (PLA) scaffolds by using fused filament fabrication (FFF) based 3D printing technology. Specifically, the effects of chitosan loading, infill density and annealing temperature on mechanical behavior of PLA composite scaffolds are investigated via design of experiments. Moreover, fracture behavior under various load types is studied with the help of selective electron microscopy. It is found that the strength of the produced composite samples depends significantly on the loading of chitosan and infill density, while annealing temperature does not affect mechanical response. Overall, the developed PLA composite scaffolds are mechanically efficient and they appear suitable for clinical purposes.
Issue Date: 1-Sep-2020
Date of Acceptance: 29-Jun-2020
URI: http://hdl.handle.net/10044/1/81833
DOI: 10.1016/j.polymertesting.2020.106722
ISSN: 0142-9418
Publisher: Elsevier
Start Page: 106722
End Page: 106722
Journal / Book Title: Polymer Testing
Volume: 89
Copyright Statement: © 2020 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Polymers
0303 Macromolecular and Materials Chemistry
0912 Materials Engineering
0913 Mechanical Engineering
Publication Status: Accepted
Article Number: 106722
Appears in Collections:Mechanical Engineering



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