Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments
The paper deals with the actual topic of mechanical properties of 3D prints made from the polymer material rPET-G and its changes. Using this material in additive technology has great potential in the automotive industry. The research evaluates five different post-processing modifications of 3D prin...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/16/9234 |
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| author | Jaroslav Lozrt Jiří Votava Radovan Henzl Vojtěch Kumbár Petr Dostál Jiří Čupera |
| author_facet | Jaroslav Lozrt Jiří Votava Radovan Henzl Vojtěch Kumbár Petr Dostál Jiří Čupera |
| author_sort | Jaroslav Lozrt |
| collection | DOAJ |
| description | The paper deals with the actual topic of mechanical properties of 3D prints made from the polymer material rPET-G and its changes. Using this material in additive technology has great potential in the automotive industry. The research evaluates five different post-processing modifications of 3D prints from rPET-G (recycled polyethylene terephthalate-glycol) material produced by the Fused Filament Fabrication technology. The post-processing included the chemical smoothing of the samples using dichloromethane vapors and heat treatment in an annealing furnace. An epoxy resin, a synthetic coating, and a water-based coating were also applied. The standard was represented by samples without post-processing modifications, both in the form of recycled material and in the form of virgin PET-G. The texture of the samples was evaluated according to EN ISO 4287. Furthermore, the moisture absorption of the samples was evaluated using the gravimetric method according to EN ISO 62. The mechanical testing of the samples was carried out using a tensile test (EN ISO 527-2), a three-point bending test (EN ISO 178), impact strength (EN ISO 179-2), and a cupping test (EN ISO 1520). Degradation of the coatings took place using cyclic tests, which used a combination of exposure in a salt fog environment and in a climate chamber. The results of the experiments indicate that heat treatment appears to be a universal post-processing technology, as this method statistically improves not only the mechanical properties but also significantly reduces moisture absorption. |
| first_indexed | 2024-03-11T00:09:55Z |
| format | Article |
| id | doaj.art-c7a08b694f5248b2985bc8a496bdeeaf |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T00:09:55Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c7a08b694f5248b2985bc8a496bdeeaf2023-11-19T00:06:33ZengMDPI AGApplied Sciences2076-34172023-08-011316923410.3390/app13169234Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing TreatmentsJaroslav Lozrt0Jiří Votava1Radovan Henzl2Vojtěch Kumbár3Petr Dostál4Jiří Čupera5Department of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech RepublicDepartment of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech RepublicDepartment of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech RepublicDepartment of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech RepublicDepartment of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech RepublicDepartment of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech RepublicThe paper deals with the actual topic of mechanical properties of 3D prints made from the polymer material rPET-G and its changes. Using this material in additive technology has great potential in the automotive industry. The research evaluates five different post-processing modifications of 3D prints from rPET-G (recycled polyethylene terephthalate-glycol) material produced by the Fused Filament Fabrication technology. The post-processing included the chemical smoothing of the samples using dichloromethane vapors and heat treatment in an annealing furnace. An epoxy resin, a synthetic coating, and a water-based coating were also applied. The standard was represented by samples without post-processing modifications, both in the form of recycled material and in the form of virgin PET-G. The texture of the samples was evaluated according to EN ISO 4287. Furthermore, the moisture absorption of the samples was evaluated using the gravimetric method according to EN ISO 62. The mechanical testing of the samples was carried out using a tensile test (EN ISO 527-2), a three-point bending test (EN ISO 178), impact strength (EN ISO 179-2), and a cupping test (EN ISO 1520). Degradation of the coatings took place using cyclic tests, which used a combination of exposure in a salt fog environment and in a climate chamber. The results of the experiments indicate that heat treatment appears to be a universal post-processing technology, as this method statistically improves not only the mechanical properties but also significantly reduces moisture absorption.https://www.mdpi.com/2076-3417/13/16/9234polymer materialfilamentmaterial porositysurface roughnessbarrier protectioncoating adhesion |
| spellingShingle | Jaroslav Lozrt Jiří Votava Radovan Henzl Vojtěch Kumbár Petr Dostál Jiří Čupera Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments Applied Sciences polymer material filament material porosity surface roughness barrier protection coating adhesion |
| title | Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments |
| title_full | Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments |
| title_fullStr | Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments |
| title_full_unstemmed | Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments |
| title_short | Analysis of the Changes in the Mechanical Properties of the 3D Printed Polymer rPET-G with Different Types of Post-Processing Treatments |
| title_sort | analysis of the changes in the mechanical properties of the 3d printed polymer rpet g with different types of post processing treatments |
| topic | polymer material filament material porosity surface roughness barrier protection coating adhesion |
| url | https://www.mdpi.com/2076-3417/13/16/9234 |
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