Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources
This study evaluates the effect of CaCO<sub>3</sub> fillers extracted from waste eggshells on 3D-printed PLA performance. Samples of neat PLA and PLA reinforced with CaCO<sub>3</sub> fillers embedded with different wt.% were prepared using an FDM (fused deposition modeling) t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/13/2646 |
| _version_ | 1797442168664621056 |
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| author | Cristina Pavon Miguel Aldas María Dolores Samper Dana Luca Motoc Santiago Ferrandiz Juan López-Martínez |
| author_facet | Cristina Pavon Miguel Aldas María Dolores Samper Dana Luca Motoc Santiago Ferrandiz Juan López-Martínez |
| author_sort | Cristina Pavon |
| collection | DOAJ |
| description | This study evaluates the effect of CaCO<sub>3</sub> fillers extracted from waste eggshells on 3D-printed PLA performance. Samples of neat PLA and PLA reinforced with CaCO<sub>3</sub> fillers embedded with different wt.% were prepared using an FDM (fused deposition modeling) technology. The samples were examined using mechanical, dynamic mechanical, thermal, and thermal decomposition analyses. The results revealed increasing elastic moduli, tensile strength, and flexure as the filler content increased. The rheological results from the MFR tests showed that the filler content did not influence the PLA-based samples’ processability. Further, the thermal degradation of neat and various CaCO<sub>3</sub>-wt.%-reinforced PLA specimens revealed relatively small discrepancies in their exposure to the temperature increase, mainly concerning the eggshell organic components and volatile components, from their processability up to 300 °C. By contrast, the increased filler content positively shifted the peaks along the temperature scale at the maximum degradation rate. Additionally, the weight content of the natural reinforcement strongly influenced the surface wettability and appearance of the samples. Further, the SEM analysis featured both the presence of interlayer disturbances and the interfacial compatibility the PLA with the selected fillers. |
| first_indexed | 2024-03-09T12:37:56Z |
| format | Article |
| id | doaj.art-710bc65ad65449ccbf5a5c0c74cfe119 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T12:37:56Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-710bc65ad65449ccbf5a5c0c74cfe1192023-11-30T22:21:33ZengMDPI AGPolymers2073-43602022-06-011413264610.3390/polym14132646Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural ResourcesCristina Pavon0Miguel Aldas1María Dolores Samper2Dana Luca Motoc3Santiago Ferrandiz4Juan López-Martínez5Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, SpainDepartamento de Ciencia de Alimentos y Biotecnología, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, 170517 Quito, EcuadorInstituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, SpainFaculty of Mechanical Engineering, Transilvania University of Brasov (UniTBv), 500036 Brasov, RomaniaInstituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, SpainInstituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), 03801 Alcoy, SpainThis study evaluates the effect of CaCO<sub>3</sub> fillers extracted from waste eggshells on 3D-printed PLA performance. Samples of neat PLA and PLA reinforced with CaCO<sub>3</sub> fillers embedded with different wt.% were prepared using an FDM (fused deposition modeling) technology. The samples were examined using mechanical, dynamic mechanical, thermal, and thermal decomposition analyses. The results revealed increasing elastic moduli, tensile strength, and flexure as the filler content increased. The rheological results from the MFR tests showed that the filler content did not influence the PLA-based samples’ processability. Further, the thermal degradation of neat and various CaCO<sub>3</sub>-wt.%-reinforced PLA specimens revealed relatively small discrepancies in their exposure to the temperature increase, mainly concerning the eggshell organic components and volatile components, from their processability up to 300 °C. By contrast, the increased filler content positively shifted the peaks along the temperature scale at the maximum degradation rate. Additionally, the weight content of the natural reinforcement strongly influenced the surface wettability and appearance of the samples. Further, the SEM analysis featured both the presence of interlayer disturbances and the interfacial compatibility the PLA with the selected fillers.https://www.mdpi.com/2073-4360/14/13/26463D-printingPLA polymerbiological fillermechanicaldynamic-mechanicalthermal |
| spellingShingle | Cristina Pavon Miguel Aldas María Dolores Samper Dana Luca Motoc Santiago Ferrandiz Juan López-Martínez Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources Polymers 3D-printing PLA polymer biological filler mechanical dynamic-mechanical thermal |
| title | Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources |
| title_full | Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources |
| title_fullStr | Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources |
| title_full_unstemmed | Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources |
| title_short | Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO<sub>3</sub> Fillers from Natural Resources |
| title_sort | mechanical dynamic mechanical thermal and decomposition behavior of 3d printed pla reinforced with caco sub 3 sub fillers from natural resources |
| topic | 3D-printing PLA polymer biological filler mechanical dynamic-mechanical thermal |
| url | https://www.mdpi.com/2073-4360/14/13/2646 |
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