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

被引:16
|
作者
Petousis, Markos [1 ]
Vidakis, Nectarios [1 ]
Mountakis, Nikolaos [1 ]
Grammatikos, Sotirios [2 ]
Papadakis, Vassilis [3 ]
David, Constantine N. [4 ]
Moutsopoulou, Amalia [1 ]
Das, Subrata C. [2 ]
机构
[1] Hellen Mediterranean Univ, Dept Mech Engn, Iraklion 71410, Greece
[2] Norwegian Univ Sci & Technol, Lab Adv & Sustainable Engn Mat ASEMlab, Dept Mfg & Civil Engn, N-2815 Gjovik, Norway
[3] Fdn Res & Technol Hellas, Inst Mol Biol & Biotechnol, Iraklion 71110, Greece
[4] Int Hellen Univ, Mfg Technol & Prod Syst Lab, Sch Engn, Serres Campus, Serres 62124, Greece
关键词
three-dimensional printing; fused filament fabrication; nanocomposites; polycarbonate; silicon carbide; mechanical characterization; CARBON; RAMAN; NANOCOMPOSITES; TEMPERATURE; COMPOSITES; FABRICATION; DIAMOND;
D O I
10.3390/polym14173492
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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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页数:20
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