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==Source== | ==Source== | ||
* Niklas Kretzschmar, Sami Lipponen, Ville Klar, Joshua M. Pearce, Tom L. Ranger, Jukka Seppälä, and Jouni Partanen. Mechanical Properties of Ultraviolet-Assisted Paste Extrusion and Postextrusion Ultraviolet-Curing of Three-Dimensional Printed Biocomposites. ''3D Printing and Additive Manufacturing''. | * Niklas Kretzschmar, Sami Lipponen, Ville Klar, Joshua M. Pearce, Tom L. Ranger, Jukka Seppälä, and Jouni Partanen. Mechanical Properties of Ultraviolet-Assisted Paste Extrusion and Postextrusion Ultraviolet-Curing of Three-Dimensional Printed Biocomposites. ''3D Printing and Additive Manufacturing''. 6(3) 127-137, 2019. https://doi.org/10.1089/3dp.2018.0148 [https://www.academia.edu/39160225/Mechanical_Properties_of_Ultraviolet-Assisted_Paste_Extrusion_and_Postextrusion_Ultraviolet-Curing_of_Three-Dimensional_Printed_Biocomposites open access] | ||
[[image: | [[image:3dp.2019.6.issue-3.cover.jpg|right|500px]] | ||
==Abstract== | ==Abstract== | ||
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==See Also== | ==See Also== | ||
* [[Ystruder: open source multifunction extruder with sensing and monitoring capabilities]] | |||
* [[Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions]] | * [[Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions]] | ||
* [[Tensile Strength of Commercial Polymer Materials for Fused Filament Fabrication 3-D Printing]] | * [[Tensile Strength of Commercial Polymer Materials for Fused Filament Fabrication 3-D Printing]] | ||
* [[Anisotropic mechanical property variance between ASTM D638-14 type I and type IV fused filament fabricated specimens]] | * [[Anisotropic mechanical property variance between ASTM D638-14 type I and type IV fused filament fabricated specimens]] | ||
* [[The Effects of PLA Color on Material Properties of 3-D Printed Components]] | * [[The Effects of PLA Color on Material Properties of 3-D Printed Components]] | ||
* [[Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins]] | * [[Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins]] | ||
* [[Wood Furniture Waste-Based Recycled 3-D Printing Filament]] | * [[Wood Furniture Waste-Based Recycled 3-D Printing Filament]] | ||
==News== | |||
# [https://3dprint.com/245551/finland-aalto-university-researchers-experiment-with-paste-extrusion-uv-curing-3d-printed-biocomposites/ Finland: Aalto University Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites ]- 3D Print 64k | |||
# [http://www.stamparein3d.it/esperimento-di-ricercatori-delluniversita-di-aalto-in-finlandia-con-estrusione-di-paste-e-polimerizzazione-uv-di-biocompositi-stampati-in-3d/ Esperimento di ricercatori dell’Università di Aalto in Finlandia con estrusione di paste e polimerizzazione UV di biocompositi stampati in 3D]- Stampare in 3D | |||
# [https://3druck.com/3d-druckmaterialien/forscher-der-aalto-universitaet-experimentieren-mit-pastenextrusion-und-uv-haertung-von-3d-gedruckten-biokompositen-3882651/ Forscher der Aalto Universität experimentieren mit Pastenextrusion und UV-Härtung von 3D-gedruckten Biokompositen] 3D Ruck | |||
# [https://3dprintingzoom.com/2019/06/04/finland-aalto-college-researchers-experiment-with-paste-extrusion-uv-curing-of-3d-printed-biocomposites/ Finland: Aalto College Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites] 3D Printing Zoom | |||
# [http://gyges3d.com/news/bio-printing/aalto-university-researchers-experiment-with-paste-extrusion-uv-curing-of-3d-printed-biocomposites/ Aalto University Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites] Gyges 3D | |||
{{MOST-RepRap}} | {{MOST-RepRap}} |
Revision as of 17:39, 5 November 2019
Source
- Niklas Kretzschmar, Sami Lipponen, Ville Klar, Joshua M. Pearce, Tom L. Ranger, Jukka Seppälä, and Jouni Partanen. Mechanical Properties of Ultraviolet-Assisted Paste Extrusion and Postextrusion Ultraviolet-Curing of Three-Dimensional Printed Biocomposites. 3D Printing and Additive Manufacturing. 6(3) 127-137, 2019. https://doi.org/10.1089/3dp.2018.0148 open access
Abstract
Three-dimensional (3D) printing of biomaterials has the potential to become an ecologically advantageous alternative compared with conventional manufacturing based on oil-derived polymer materials. In this study, a novel 3D printing technology is applied that combines ultraviolet (UV) curing with paste extrusion. This hybrid manufacturing technique enables the fabrication of complex geometries from high filler-ratio pastes. The developed biocomposite aims for suitable mechanical properties in terms of tensile and compressive strength. It is composed of acrylic acid, cellulose acetate, α-cellulose, and fumed silica with a cellulose ratio of more than 25 vol-%. The material is extruded with an in-house-developed 3D printer equipped with a 12 W UV light curing source, which enables concurrent curing and extrusion. Two different UV-curing strategies were tested: postcuring without concurrent curing and postcuring with concurrent curing. The total UV-curing duration was kept constant with all samples. Tensile testing in accordance with ASTM standard D638-14 Type 4, compression testing according to ASTM D695-15, and overhang tests were conducted. As a result, samples without notable shrinkage, suitable tensile strength (up to 17.72 MPa), competitive compression testing parameters (up to 19.73 MPa), and an enhanced overhang angle (increase of more than 25°) were produced, leading to new applications and more freedom in design due to higher possible unsupported overhangs when using UV-curing during the print. Overall, constant UV light radiation during the print leads to improved mechanical properties due to the possibility of bypassing the UV-penetration depth constraint. It should be considered when extruding photopolymer-based composites, especially for large and complex components with a low degree of translucency.
Keywords
3D printing; Mechanical testing; Natural fibre ; Natural fibre composites; Biopolymers; UV-assisted paste extrusion; biocomposite; 3D printing; mechanical properties; overhang testing; open-source platform
See Also
- Ystruder: open source multifunction extruder with sensing and monitoring capabilities
- Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions
- Tensile Strength of Commercial Polymer Materials for Fused Filament Fabrication 3-D Printing
- Anisotropic mechanical property variance between ASTM D638-14 type I and type IV fused filament fabricated specimens
- The Effects of PLA Color on Material Properties of 3-D Printed Components
- Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins
- Wood Furniture Waste-Based Recycled 3-D Printing Filament
News
- Finland: Aalto University Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites - 3D Print 64k
- Esperimento di ricercatori dell’Università di Aalto in Finlandia con estrusione di paste e polimerizzazione UV di biocompositi stampati in 3D- Stampare in 3D
- Forscher der Aalto Universität experimentieren mit Pastenextrusion und UV-Härtung von 3D-gedruckten Biokompositen 3D Ruck
- Finland: Aalto College Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites 3D Printing Zoom
- Aalto University Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites Gyges 3D