Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds
The production of scaffolds for bone tissue applications is requiring a combination of physical and biological properties, which are depending on the materials morphology and pro-cessing conditions during the production process. The aim of the paper is the investigation of rheological behaviour of p...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423006944 |
| _version_ | 1797798791283212288 |
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| author | Evangelos Daskalakis Mohamed H. Hassan Abdalla M. Omar Glen Cooper Andrew Weightman Paulo Bartolo |
| author_facet | Evangelos Daskalakis Mohamed H. Hassan Abdalla M. Omar Glen Cooper Andrew Weightman Paulo Bartolo |
| author_sort | Evangelos Daskalakis |
| collection | DOAJ |
| description | The production of scaffolds for bone tissue applications is requiring a combination of physical and biological properties, which are depending on the materials morphology and pro-cessing conditions during the production process. The aim of the paper is the investigation of rheological behaviour of polymer and composite blends regularly used for the production of scaffolds for bone tissue applications with the use of additive manufacturing. Poly-ε-caprolactone (PCL), hydroxyapatite (HA), β-tri-calcium phosphate (TCP) and Bioglass 45S5 blends containing different ceramic concentrations (10 wt%, 15 wt% and 20 wt%) were prepared with the use of melt blending procedure and investigated with the use of oscillation and rotational rheology tests. Results are showing that all blends are presenting viscoelastic behaviour with higher viscous modulus, compared with elastic modulus for low frequencies, with this difference reducing while the frequency is increasing. All blends are presenting shear-thinning behaviour suitable for use with additive manufacturing methods. Viscous and elastic modulus are increasing by adding ceramic particles. Results are presenting that PCL/HA blends of the same material concentration are presenting higher elastic modulus properties compared with the other blends, while PCL/Bioglass blends are presenting lower loss factor, lower relaxation time and lower shear viscosity making them easier to handle during the printing procedure. |
| first_indexed | 2024-03-13T04:09:10Z |
| format | Article |
| id | doaj.art-36723ada184f4822aa82beb71446e280 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:10Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-36723ada184f4822aa82beb71446e2802023-06-21T06:56:23ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012436703682Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffoldsEvangelos Daskalakis0Mohamed H. Hassan1Abdalla M. Omar2Glen Cooper3Andrew Weightman4Paulo Bartolo5School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, UK; Corresponding author. School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, United Kingdom.School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, UKSchool of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, UKSchool of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, UKSchool of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, UKSchool of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL, UK; Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798 Singapore; Corresponding author. Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798 Singapore.The production of scaffolds for bone tissue applications is requiring a combination of physical and biological properties, which are depending on the materials morphology and pro-cessing conditions during the production process. The aim of the paper is the investigation of rheological behaviour of polymer and composite blends regularly used for the production of scaffolds for bone tissue applications with the use of additive manufacturing. Poly-ε-caprolactone (PCL), hydroxyapatite (HA), β-tri-calcium phosphate (TCP) and Bioglass 45S5 blends containing different ceramic concentrations (10 wt%, 15 wt% and 20 wt%) were prepared with the use of melt blending procedure and investigated with the use of oscillation and rotational rheology tests. Results are showing that all blends are presenting viscoelastic behaviour with higher viscous modulus, compared with elastic modulus for low frequencies, with this difference reducing while the frequency is increasing. All blends are presenting shear-thinning behaviour suitable for use with additive manufacturing methods. Viscous and elastic modulus are increasing by adding ceramic particles. Results are presenting that PCL/HA blends of the same material concentration are presenting higher elastic modulus properties compared with the other blends, while PCL/Bioglass blends are presenting lower loss factor, lower relaxation time and lower shear viscosity making them easier to handle during the printing procedure.http://www.sciencedirect.com/science/article/pii/S2238785423006944Additive manufacturingPolymer-ceramic blendsPrintabilityRheology |
| spellingShingle | Evangelos Daskalakis Mohamed H. Hassan Abdalla M. Omar Glen Cooper Andrew Weightman Paulo Bartolo Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds Journal of Materials Research and Technology Additive manufacturing Polymer-ceramic blends Printability Rheology |
| title | Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds |
| title_full | Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds |
| title_fullStr | Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds |
| title_full_unstemmed | Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds |
| title_short | Rheological behaviour of different composite materials for additive manufacturing of 3D bone scaffolds |
| title_sort | rheological behaviour of different composite materials for additive manufacturing of 3d bone scaffolds |
| topic | Additive manufacturing Polymer-ceramic blends Printability Rheology |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423006944 |
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