Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality
Three commercial filaments for Fused Deposition Modeling (FDM) were selected to study the influence of polymer formulation on the printing quality and mechanical properties of FDM specimens. The three filaments were all based on polylactic acid (PLA) as the matrix, and they are sold as PLA filaments...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-07-01
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| Series: | Materials |
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| Online Access: | http://www.mdpi.com/1996-1944/11/7/1191 |
| _version_ | 1811328253470703616 |
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| author | Gianluca Cicala Davide Giordano Claudio Tosto Giovanni Filippone Antonino Recca Ignazio Blanco |
| author_facet | Gianluca Cicala Davide Giordano Claudio Tosto Giovanni Filippone Antonino Recca Ignazio Blanco |
| author_sort | Gianluca Cicala |
| collection | DOAJ |
| description | Three commercial filaments for Fused Deposition Modeling (FDM) were selected to study the influence of polymer formulation on the printing quality and mechanical properties of FDM specimens. The three filaments were all based on polylactic acid (PLA) as the matrix, and they are sold as PLA filaments. The printing quality was tested by printing one complex shape with overhang features. The marked shear thinning behavior for two filaments was observed by rheology. The filaments were also studied by scanning electron microscopy and thermogravimetric analysis (TGA) to unveil their composition. The filaments with the best printing quality showed the presence of mineral fillers, which explained the melt behavior observed by rheology. The tensile testing confirmed that the filled PLA was the best-performing filament both in terms of printing quality and thermomechanical performance, with a p-value = 0.106 for the tensile modulus, and a p-value = 0.615 for the ultimate tensile strength. |
| first_indexed | 2024-04-13T15:22:00Z |
| format | Article |
| id | doaj.art-36617e5b49e74d078e48f2eef6bf2ce3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-13T15:22:00Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-36617e5b49e74d078e48f2eef6bf2ce32022-12-22T02:41:38ZengMDPI AGMaterials1996-19442018-07-01117119110.3390/ma11071191ma11071191Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing QualityGianluca Cicala0Davide Giordano1Claudio Tosto2Giovanni Filippone3Antonino Recca4Ignazio Blanco5Dipartimento DICAR (Department of Civil Engineering and Architecture), Università di Catania, Viale Andrea Doria 6, 95125 Catania, ItalyDipartimento DICAR (Department of Civil Engineering and Architecture), Università di Catania, Viale Andrea Doria 6, 95125 Catania, ItalyDipartimento DICAR (Department of Civil Engineering and Architecture), Università di Catania, Viale Andrea Doria 6, 95125 Catania, ItalyDipartimento di Ingegneria Chimica, dei Materiali e Della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale Tecchio 80, 80125 Napoli, ItalyDipartimento DICAR (Department of Civil Engineering and Architecture), Università di Catania, Viale Andrea Doria 6, 95125 Catania, ItalyDipartimento DICAR (Department of Civil Engineering and Architecture), Università di Catania, Viale Andrea Doria 6, 95125 Catania, ItalyThree commercial filaments for Fused Deposition Modeling (FDM) were selected to study the influence of polymer formulation on the printing quality and mechanical properties of FDM specimens. The three filaments were all based on polylactic acid (PLA) as the matrix, and they are sold as PLA filaments. The printing quality was tested by printing one complex shape with overhang features. The marked shear thinning behavior for two filaments was observed by rheology. The filaments were also studied by scanning electron microscopy and thermogravimetric analysis (TGA) to unveil their composition. The filaments with the best printing quality showed the presence of mineral fillers, which explained the melt behavior observed by rheology. The tensile testing confirmed that the filled PLA was the best-performing filament both in terms of printing quality and thermomechanical performance, with a p-value = 0.106 for the tensile modulus, and a p-value = 0.615 for the ultimate tensile strength.http://www.mdpi.com/1996-1944/11/7/1191additive manufacturingfused deposition modelingrheologymechanical propertiesPLA3D printingthermal properties |
| spellingShingle | Gianluca Cicala Davide Giordano Claudio Tosto Giovanni Filippone Antonino Recca Ignazio Blanco Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality Materials additive manufacturing fused deposition modeling rheology mechanical properties PLA 3D printing thermal properties |
| title | Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality |
| title_full | Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality |
| title_fullStr | Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality |
| title_full_unstemmed | Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality |
| title_short | Polylactide (PLA) Filaments a Biobased Solution for Additive Manufacturing: Correlating Rheology and Thermomechanical Properties with Printing Quality |
| title_sort | polylactide pla filaments a biobased solution for additive manufacturing correlating rheology and thermomechanical properties with printing quality |
| topic | additive manufacturing fused deposition modeling rheology mechanical properties PLA 3D printing thermal properties |
| url | http://www.mdpi.com/1996-1944/11/7/1191 |
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