Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills
Polylactic acid (PLA) belongs to the few thermoplastic polymers that are derived from renewable resources such as corn starch or sugar cane. PLA is often used in 3D printing by fused deposition modeling (FDM) as it is relatively easy to print, does not show warping and can be printed without a close...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/13/1/164 |
| _version_ | 1797542432630374400 |
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| author | Guido Ehrmann Andrea Ehrmann |
| author_facet | Guido Ehrmann Andrea Ehrmann |
| author_sort | Guido Ehrmann |
| collection | DOAJ |
| description | Polylactic acid (PLA) belongs to the few thermoplastic polymers that are derived from renewable resources such as corn starch or sugar cane. PLA is often used in 3D printing by fused deposition modeling (FDM) as it is relatively easy to print, does not show warping and can be printed without a closed building chamber. On the other hand, PLA has interesting mechanical properties which are influenced by the printing parameters and geometries. Here we present shape-memory properties of PLA cubes with different infill patterns and percentages, extending the research reported before in a conference paper. We investigate the material response under defined quasi-static load as well as the possibility to restore the original 3D printed shape. The quasi-static flexural properties are linked to the porosity and the infill structure of the samples under investigation as well as to the numbers of closed top layers, examined optically and by simulations. Our results underline the importance of designing the infill patterns carefully to develop samples with desired mechanical properties. |
| first_indexed | 2024-03-10T13:29:26Z |
| format | Article |
| id | doaj.art-d51ae2df7c28409aa15ce311b54735fc |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T13:29:26Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d51ae2df7c28409aa15ce311b54735fc2023-11-21T08:15:52ZengMDPI AGPolymers2073-43602021-01-0113116410.3390/polym13010164Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different InfillsGuido Ehrmann0Andrea Ehrmann1Virtual Institute of Applied Research on Advanced Materials (VIARAM)Virtual Institute of Applied Research on Advanced Materials (VIARAM)Polylactic acid (PLA) belongs to the few thermoplastic polymers that are derived from renewable resources such as corn starch or sugar cane. PLA is often used in 3D printing by fused deposition modeling (FDM) as it is relatively easy to print, does not show warping and can be printed without a closed building chamber. On the other hand, PLA has interesting mechanical properties which are influenced by the printing parameters and geometries. Here we present shape-memory properties of PLA cubes with different infill patterns and percentages, extending the research reported before in a conference paper. We investigate the material response under defined quasi-static load as well as the possibility to restore the original 3D printed shape. The quasi-static flexural properties are linked to the porosity and the infill structure of the samples under investigation as well as to the numbers of closed top layers, examined optically and by simulations. Our results underline the importance of designing the infill patterns carefully to develop samples with desired mechanical properties.https://www.mdpi.com/2073-4360/13/1/164polylactic acid (PLA)fused deposition modeling3-point bending testinfill parametersinfill densityshape-memory properties |
| spellingShingle | Guido Ehrmann Andrea Ehrmann Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills Polymers polylactic acid (PLA) fused deposition modeling 3-point bending test infill parameters infill density shape-memory properties |
| title | Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills |
| title_full | Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills |
| title_fullStr | Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills |
| title_full_unstemmed | Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills |
| title_short | Investigation of the Shape-Memory Properties of 3D Printed PLA Structures with Different Infills |
| title_sort | investigation of the shape memory properties of 3d printed pla structures with different infills |
| topic | polylactic acid (PLA) fused deposition modeling 3-point bending test infill parameters infill density shape-memory properties |
| url | https://www.mdpi.com/2073-4360/13/1/164 |
| work_keys_str_mv | AT guidoehrmann investigationoftheshapememorypropertiesof3dprintedplastructureswithdifferentinfills AT andreaehrmann investigationoftheshapememorypropertiesof3dprintedplastructureswithdifferentinfills |