Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate

In this work, the effect of silicon carbide (carborundum, SiC), as a boosting agent of the mechanical response of the polycarbonate (PC) polymer, was investigated. The work aimed to fabricate nanocomposites with an improved mechanical performance and to further expand the utilization of 3D printing...

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Main Authors: Markos Petousis, Nectarios Vidakis, Nikolaos Mountakis, Sotirios Grammatikos, Vassilis Papadakis, Constantine N. David, Amalia Moutsopoulou, Subrata C. Das
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/17/3492
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author Markos Petousis
Nectarios Vidakis
Nikolaos Mountakis
Sotirios Grammatikos
Vassilis Papadakis
Constantine N. David
Amalia Moutsopoulou
Subrata C. Das
author_facet Markos Petousis
Nectarios Vidakis
Nikolaos Mountakis
Sotirios Grammatikos
Vassilis Papadakis
Constantine N. David
Amalia Moutsopoulou
Subrata C. Das
author_sort Markos Petousis
collection DOAJ
description In this work, the effect of silicon carbide (carborundum, SiC), as a boosting agent of the mechanical response of the polycarbonate (PC) polymer, was investigated. The work aimed to fabricate nanocomposites with an improved mechanical performance and to further expand the utilization of 3D printing in fields requiring an enhanced material response. The nanocomposites were produced by a thermomechanical process in various SiC concentrations in order to evaluate the filler loading in the mechanical enhancement. The samples were 3D printed with the material extrusion (MEX) method. Their mechanical performance was characterized, following international standards, by using dynamic mechanical analysis (DMA) and tensile, flexural, and Charpy’s impact tests. The microhardness of the samples was also measured. The morphological characteristics were examined, and Raman spectra revealed their structure. It was found that SiC can improve the mechanical performance of the PC thermoplastic. A 19.5% increase in the tensile strength was found for the 2 wt.% loading nanocomposite, while the 3 wt.% nanocomposite showed a 16% increase in the flexural strength and a 35.9% higher impact strength when compared to the unfilled PC. No processability issues were faced for the filler loadings that have been studied here.
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spelling doaj.art-546c26528472456d8c4814522020f0d82023-11-23T13:57:47ZengMDPI AGPolymers2073-43602022-08-011417349210.3390/polym14173492Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed PolycarbonateMarkos Petousis0Nectarios Vidakis1Nikolaos Mountakis2Sotirios Grammatikos3Vassilis Papadakis4Constantine N. David5Amalia Moutsopoulou6Subrata C. Das7Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, GreeceDepartment of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, GreeceDepartment of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, GreeceLaboratory for Advanced and Sustainable Engineering Materials (ASEMlab), Department of Manufacturing and Civil Engineering, Norwegian University of Science and Technology, 2815 Gjovik, NorwayInstitute of Molecular Biology and Biotechnology, Foundation for Research and Technology—Hellas, 71110 Heraklion, GreeceManufacturing Technology & Production Systems Laboratory, School of Engineering, International Hellenic University, Serres Campus, 62124 Serres, GreeceDepartment of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, GreeceLaboratory for Advanced and Sustainable Engineering Materials (ASEMlab), Department of Manufacturing and Civil Engineering, Norwegian University of Science and Technology, 2815 Gjovik, NorwayIn this work, the effect of silicon carbide (carborundum, SiC), as a boosting agent of the mechanical response of the polycarbonate (PC) polymer, was investigated. The work aimed to fabricate nanocomposites with an improved mechanical performance and to further expand the utilization of 3D printing in fields requiring an enhanced material response. The nanocomposites were produced by a thermomechanical process in various SiC concentrations in order to evaluate the filler loading in the mechanical enhancement. The samples were 3D printed with the material extrusion (MEX) method. Their mechanical performance was characterized, following international standards, by using dynamic mechanical analysis (DMA) and tensile, flexural, and Charpy’s impact tests. The microhardness of the samples was also measured. The morphological characteristics were examined, and Raman spectra revealed their structure. It was found that SiC can improve the mechanical performance of the PC thermoplastic. A 19.5% increase in the tensile strength was found for the 2 wt.% loading nanocomposite, while the 3 wt.% nanocomposite showed a 16% increase in the flexural strength and a 35.9% higher impact strength when compared to the unfilled PC. No processability issues were faced for the filler loadings that have been studied here.https://www.mdpi.com/2073-4360/14/17/3492three-dimensional printingfused filament fabricationnanocompositespolycarbonatesilicon carbidemechanical characterization
spellingShingle Markos Petousis
Nectarios Vidakis
Nikolaos Mountakis
Sotirios Grammatikos
Vassilis Papadakis
Constantine N. David
Amalia Moutsopoulou
Subrata C. Das
Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
Polymers
three-dimensional printing
fused filament fabrication
nanocomposites
polycarbonate
silicon carbide
mechanical characterization
title Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
title_full Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
title_fullStr Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
title_full_unstemmed Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
title_short Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
title_sort silicon carbide nanoparticles as a mechanical boosting agent in material extrusion 3d printed polycarbonate
topic three-dimensional printing
fused filament fabrication
nanocomposites
polycarbonate
silicon carbide
mechanical characterization
url https://www.mdpi.com/2073-4360/14/17/3492
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