Technological Evaluation of Algae-Based Fillers for Polymer 3D Printing
| Autor: | Maximilian Fiedler, Oliver Schoemig, Fabian Fischer, Klaus Droeder |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
algae
Renewable Energy Sustainability and the Environment fused deposition modeling Geography Planning and Development Building and Construction Management Monitoring Policy and Law Article additive manufacturing -- fused deposition modeling -- sustainable materials -- algae -- bio-based bio-based ddc:670 sustainable materials ddc:67 ddc:6 Veröffentlichung der TU Braunschweig Publikationsfonds der TU Braunschweig additive manufacturing |
| Zdroj: | Sustainability Sustainable Industrial Systems—from Theory to Practice 15 (2023) 5, 4039.-https://doi.org/10.3390/su15054039--https://www.mdpi.com/journal/sustainability--http://www.bibliothek.uni-regensburg.de/ezeit/?2518383--2071-1050 Sustainability Volume 15 Issue 5 Pages: 4039 |
| DOI: | 10.3390/su15054039 |
| Popis: | One approach to reducing the environmental footprint of conventional polymers is to compound them with bio-based fillers. Plant-based materials have already been successfully used as polymer fillers. In this context, algae-based fillers received minor attention. Due to their unique growth efficiency and ability to capture large amounts of CO2, the use of algae-based fillers could have economic and ecologic advantages. In this work, a possible use of algae as a sustainable filler for filament materials was technologically evaluated. In practical investigations, conventional polyethylene-terephthalate-glycol (PETG) was mixed with the microalgae spirulina platensis and chlorella vulgaris and extruded to 3D printing filaments. Based on printed test specimens and material samples, the printability, mechanical, and thermal properties of the composite were determined. Filaments with a homogeneous distribution of algae particles and stable diameters up to a filler content of 30 wt.% could be produced. All filaments had good printability and adequate moisture sensitivity for higher algae contents. For 30 wt.% the tensile strength of the produced filaments decreases from 54 MPa to 24 MPa, the flexural strength decreases from 87 MPa to 69 MPa, and the material operating temperature decreases slightly from 70 °C to 66 °C. The addition of smaller amounts of algae results in minor changes regarding the overall performance. The properties of the material were comparable to those of other natural fillers such as wood, bamboo or cork. The main objective of adding bio-based materials to polymeric matrices can be achieved. Our results suggest that algae-based filaments can be produced as a more sustainable and low-cost material. |
| Databáze: | OpenAIRE |
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