The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles
Additive manufacturing provides a novel and robust way to prepare medical product with anatomic matched geometry and tailored mechanical performance. In this study, the surface characteristics, microstructure, and mechanical properties of fused deposition modeling (FDM) prepared polyether-ether-keto...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/1/77 |
| _version_ | 1797497822513201152 |
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| author | Sasa Gao Ruijuan Liu Hua Xin Haitao Liang Yunfei Wang Junhong Jia |
| author_facet | Sasa Gao Ruijuan Liu Hua Xin Haitao Liang Yunfei Wang Junhong Jia |
| author_sort | Sasa Gao |
| collection | DOAJ |
| description | Additive manufacturing provides a novel and robust way to prepare medical product with anatomic matched geometry and tailored mechanical performance. In this study, the surface characteristics, microstructure, and mechanical properties of fused deposition modeling (FDM) prepared polyether-ether-ketone (PEEK) were systematically studied. During the FDM process, the crystal unit cell and thermal attribute of PEEK material remained unchanged, whereas the surface layer generally became more hydrophilic with an obvious reduction in surface hardness. Raster angle has a significant effect on the mechanical strength but not on the failure mechanism. In practice, FDM fabricated PEEK acted more like a laminate rather than a unified structure. Its main failure mechanism was correlated to the internal voids. The results show that horizontal infill orientation with 30° raster angle is promising for a better comprehensive mechanical performance, and the corresponding tensile, flexural, and shear strengths are (76.5 ± 1.4) MPa, (149.7 ± 3.0) MPa, and (55.5 ± 1.8) MPa, respectively. The findings of this study provide guidelines for FDM-PEEK to enable its realization in applications such as orthopedic implants. |
| first_indexed | 2024-03-10T03:24:43Z |
| format | Article |
| id | doaj.art-09edb52a8d3c425dab5943ab6c6b19a1 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T03:24:43Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-09edb52a8d3c425dab5943ab6c6b19a12023-11-23T12:09:30ZengMDPI AGPolymers2073-43602021-12-011417710.3390/polym14010077The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster AnglesSasa Gao0Ruijuan Liu1Hua Xin2Haitao Liang3Yunfei Wang4Junhong Jia5College of Mechanical & Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaCollege of Mechanical & Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaCollege of Mechanical & Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaCollege of Mechanical & Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaCollege of Mechanical & Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaCollege of Mechanical & Electrical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, ChinaAdditive manufacturing provides a novel and robust way to prepare medical product with anatomic matched geometry and tailored mechanical performance. In this study, the surface characteristics, microstructure, and mechanical properties of fused deposition modeling (FDM) prepared polyether-ether-ketone (PEEK) were systematically studied. During the FDM process, the crystal unit cell and thermal attribute of PEEK material remained unchanged, whereas the surface layer generally became more hydrophilic with an obvious reduction in surface hardness. Raster angle has a significant effect on the mechanical strength but not on the failure mechanism. In practice, FDM fabricated PEEK acted more like a laminate rather than a unified structure. Its main failure mechanism was correlated to the internal voids. The results show that horizontal infill orientation with 30° raster angle is promising for a better comprehensive mechanical performance, and the corresponding tensile, flexural, and shear strengths are (76.5 ± 1.4) MPa, (149.7 ± 3.0) MPa, and (55.5 ± 1.8) MPa, respectively. The findings of this study provide guidelines for FDM-PEEK to enable its realization in applications such as orthopedic implants.https://www.mdpi.com/2073-4360/14/1/77surface characteristicsmechanical propertiesfused deposition modeling (FDM)polyether-ether-ketone (PEEK)raster angle |
| spellingShingle | Sasa Gao Ruijuan Liu Hua Xin Haitao Liang Yunfei Wang Junhong Jia The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles Polymers surface characteristics mechanical properties fused deposition modeling (FDM) polyether-ether-ketone (PEEK) raster angle |
| title | The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles |
| title_full | The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles |
| title_fullStr | The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles |
| title_full_unstemmed | The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles |
| title_short | The Surface Characteristics, Microstructure and Mechanical Properties of PEEK Printed by Fused Deposition Modeling with Different Raster Angles |
| title_sort | surface characteristics microstructure and mechanical properties of peek printed by fused deposition modeling with different raster angles |
| topic | surface characteristics mechanical properties fused deposition modeling (FDM) polyether-ether-ketone (PEEK) raster angle |
| url | https://www.mdpi.com/2073-4360/14/1/77 |
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