The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties
Three-dimensional printing is a useful and common process in additive manufacturing nowadays. The advantage of additive polymer technology is its rapidity and design freedom. Polymer materials’ mechanical properties depend on the process parameters and the chemical composition of the polymer used. M...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/6/1587 |
| _version_ | 1797609251428892672 |
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| author | Mariam Shbanah Márton Jordanov Zoltán Nyikes László Tóth Tünde Anna Kovács |
| author_facet | Mariam Shbanah Márton Jordanov Zoltán Nyikes László Tóth Tünde Anna Kovács |
| author_sort | Mariam Shbanah |
| collection | DOAJ |
| description | Three-dimensional printing is a useful and common process in additive manufacturing nowadays. The advantage of additive polymer technology is its rapidity and design freedom. Polymer materials’ mechanical properties depend on the process parameters and the chemical composition of the polymer used. Mechanical properties are very important in product applicability. The mechanical properties of polymers can be enhanced by heat treatment. Additive-manufactured PLA’s mechanical properties and structure can be modified via heat treatment after the 3D printing process. The goal of this research was to test the effect of heat treatment on the mechanical and structural parameters of additive-manufactured PLA. This was achieved via the FDM processing of standard PLA tensile test specimens with longitudinal and vertical printing orientations. After printing, the test specimens were heat-treated at 55 °C, 65 °C and 80 °C for 5 h and after being held at 20 °C for 15 h. The printed and heat-treated specimens were tested using tensile tests and microscopy. Based on the test results, we can conclude that the optimal heat treatment process temperature was 65 °C for 5 h. Under the heat treatment, the test specimens did not show any deformation, the tensile strength increased by 35% and the porosity of the PLA structure decreased. |
| first_indexed | 2024-03-11T05:58:52Z |
| format | Article |
| id | doaj.art-0cfef30327a64e45b806f376809932e7 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T05:58:52Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0cfef30327a64e45b806f376809932e72023-11-17T13:27:38ZengMDPI AGPolymers2073-43602023-03-01156158710.3390/polym15061587The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical PropertiesMariam Shbanah0Márton Jordanov1Zoltán Nyikes2László Tóth3Tünde Anna Kovács4Doctoral School on Materials Sciences and Technologies, Óbuda University, Bécsi út 96/B, 1034 Budapest, HungaryBánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., 1081 Budapest, HungaryBánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., 1081 Budapest, HungaryBánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., 1081 Budapest, HungaryBánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., 1081 Budapest, HungaryThree-dimensional printing is a useful and common process in additive manufacturing nowadays. The advantage of additive polymer technology is its rapidity and design freedom. Polymer materials’ mechanical properties depend on the process parameters and the chemical composition of the polymer used. Mechanical properties are very important in product applicability. The mechanical properties of polymers can be enhanced by heat treatment. Additive-manufactured PLA’s mechanical properties and structure can be modified via heat treatment after the 3D printing process. The goal of this research was to test the effect of heat treatment on the mechanical and structural parameters of additive-manufactured PLA. This was achieved via the FDM processing of standard PLA tensile test specimens with longitudinal and vertical printing orientations. After printing, the test specimens were heat-treated at 55 °C, 65 °C and 80 °C for 5 h and after being held at 20 °C for 15 h. The printed and heat-treated specimens were tested using tensile tests and microscopy. Based on the test results, we can conclude that the optimal heat treatment process temperature was 65 °C for 5 h. Under the heat treatment, the test specimens did not show any deformation, the tensile strength increased by 35% and the porosity of the PLA structure decreased.https://www.mdpi.com/2073-4360/15/6/1587additive processPLAheat treatmenttensile testmicroscopy |
| spellingShingle | Mariam Shbanah Márton Jordanov Zoltán Nyikes László Tóth Tünde Anna Kovács The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties Polymers additive process PLA heat treatment tensile test microscopy |
| title | The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties |
| title_full | The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties |
| title_fullStr | The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties |
| title_full_unstemmed | The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties |
| title_short | The Effect of Heat Treatment on a 3D-Printed PLA Polymer’s Mechanical Properties |
| title_sort | effect of heat treatment on a 3d printed pla polymer s mechanical properties |
| topic | additive process PLA heat treatment tensile test microscopy |
| url | https://www.mdpi.com/2073-4360/15/6/1587 |
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