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Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment
Abstract
Additive manufacturing technologies are gaining more and more attention, resulting in the development or modification of 3D printing techniques and dedicated materials. On the other hand, economic and ecological aspects force the industry to develop material recycling strategies. In this work, the multiple reprocessing of a commercially available PLA conductive composite with carbon black filler, dedicated to 3D printing, was investigated. The effects of extrusion temperature (190 °C and 200 °C) and reprocessing steps (1–5 steps) on the rheology, morphology, thermal and electrochemical properties of the conductive PLA 3D-printing filament were evaluated. The results showed deterioration of the thermal stability and material strength, as well as the influence of reprocessing on the melting point, which increases after initial melting. The electronic conduction mechanism of the composite depends on the percolation paths and it is also affected by the multiple processing. The reversibility of the [Fe(CN)6]3−/4− redox process diminishes with a higher degradation level of the conductive PLA. Importantly, the material fluidity was too high after the multiple reprocessing, which should be considered and suitably corrected during CB–PLA application as a 3D-printed electrode material.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma16031307
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Materials
no. 16,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Cieślik M., Rodak A., Susik A., Wójcik N., Szociński M., Ryl J., Formela K.: Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment// Materials -,iss. 16 (2023), s.1307-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma16031307
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
Referenced datasets
- dataset Rheology studies of multiple times processed poly(lactic acid)-carbon black composites
- dataset Broadband dielectric spectroscopy studies of multiple times processed poly(lactic acid)-carbon black composites
- dataset Topography studies of multiple times processed poly(lactic acid)-carbon black composites
- dataset Electrochemical analyses of multiple times processed poly(lactic acid)-carbon black composites
- dataset Thermal analyses of multiple times processed poly(lactic acid)-carbon black composites
- dataset Physicochemical studies (Raman) of multiple times processed poly(lactic acid)-carbon black composites
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