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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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| Bih, L. |
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| Azevedo, Nuno Monteiro |
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Kangas, Heli
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Topics
Publications (9/9 displayed)
- 2022Recycling of 3D Printable Thermoplastic Cellulose-Compositecitations
- 2021Thermoplastic Cellulose-Based Compound for Additive Manufacturingcitations
- 2018New developments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulose micro/nanofibrils
- 2017Risk assessment of polymer composites containing cellulose nanofibrils (CNF):Considerations of industrial production
- 2017Effect of cellulose microfibril (CMF) addition on strength properties of middle ply of boardcitations
- 2016Influence of fiber modifications on PLA/fiber composites:Behavior to accelerated weatheringcitations
- 2016Risk assessment of polymer composites containing cellulose nanofibrils (CNF)
- 2015Biodegradability, compostability and safety of cellulose nanofibrils (CNF) and CNF-based products
- 2013Porous wood fibre structures for tomorrow markets
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article
Recycling of 3D Printable Thermoplastic Cellulose-Composite
Abstract
3D printing enables sustainable product innovations through novel design, reduced use of materials, and local manufacturing. Sustainable 3D printing can further be realized using recyclable materials. Cellulose is an abundantly available renewable material. Modified celluloses, such as thermoplastic cellulose esters, are widely used in injection molding applications. The aim of this research was to study the properties of a cellulose-based composite (cellulose acetate propionate (CAP) polymer matrix with 20 wt. % microcellulose) in injection molding and granular extrusion-based 3D printing processes over multiple recycles. The impact of the processing methods on the composite’s properties were investigated. Both injection molded and 3D printed samples were ground with plastic grinding mill to particle sizes below 3 mm after each preparation stage and reused as such in the next process cycle. Morphology, mechanical and thermal properties, and material degradation were analyzed. The thermoplastic cellulose-based compound was found to be directly recyclable for both processes without the need for any additional compounding steps. The polymer matrix was able to withstand at least seven processing cycles without degradation. However, microcellulose was found to be more sensitive to thermal stress. The mechanical and thermal properties of the cellulose-based composites remained close to initial levels throughout.