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Article

Magnesium Filled Polylactic Acid (PLA) Material for Filament Based 3D Printing

1
Physical Metallurgy, Department of Metallic Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
2
Department of Machine and Manufacturing Systems, University Politehnica of Bucharest, 060042 Bucharest, Romania
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Faculty of Medicine, University Titu Maiorescu of Bucharest, 040441 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Materials 2019, 12(5), 719; https://doi.org/10.3390/ma12050719
Received: 28 January 2019 / Revised: 22 February 2019 / Accepted: 25 February 2019 / Published: 1 March 2019
(This article belongs to the Section Biomaterials)
The main objective of this research is to prove the viability of obtaining magnesium (Mg) filled polylactic acid (PLA) biocomposites as filament feedstock for material extrusion-based additive manufacturing (AM). These materials can be used for medical applications, thus benefiting of all the advantages offered by AM technology in terms of design freedom and product customization. Filaments were produced from two PLA + magnesium + vitamin E (α-tocopherol) compositions and then used for manufacturing test samples and ACL (anterior cruciate ligament) screws on a low-cost 3D printer. Filaments and implant screws were characterized using SEM (scanning electron microscopy), FTIR (fourier transform infrared spectrometry), and DSC (differential scanning calorimetry) analysis. Although the filament manufacturing process could not ensure a uniform distribution of Mg particles within the PLA matrix, a good integration was noticed, probably due to the use of vitamin E as a precursor. The results also show that the composite biomaterials can ensure and maintain implant screws structural integrity during the additive manufacturing process. View Full-Text
Keywords: magnesium filled PLA; vitamin E; filament feedstock; material extrusion; 3D printing; microstructure characterization magnesium filled PLA; vitamin E; filament feedstock; material extrusion; 3D printing; microstructure characterization
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MDPI and ACS Style

Antoniac, I.; Popescu, D.; Zapciu, A.; Antoniac, A.; Miculescu, F.; Moldovan, H. Magnesium Filled Polylactic Acid (PLA) Material for Filament Based 3D Printing. Materials 2019, 12, 719. https://doi.org/10.3390/ma12050719

AMA Style

Antoniac I, Popescu D, Zapciu A, Antoniac A, Miculescu F, Moldovan H. Magnesium Filled Polylactic Acid (PLA) Material for Filament Based 3D Printing. Materials. 2019; 12(5):719. https://doi.org/10.3390/ma12050719

Chicago/Turabian Style

Antoniac, Iulian, Diana Popescu, Aurelian Zapciu, Aurora Antoniac, Florin Miculescu, and Horatiu Moldovan. 2019. "Magnesium Filled Polylactic Acid (PLA) Material for Filament Based 3D Printing" Materials 12, no. 5: 719. https://doi.org/10.3390/ma12050719

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