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Article

Sustainable Additive Manufacturing: Mechanical Response of Acrylonitrile-Butadiene-Styrene over Multiple Recycling Processes

1
Mechanical Engineering Department, Hellenic Mediterranean University, 71410 Heraklion Crete, Greece
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Department of Materials Science and Technology, University of Crete, 70013 Heraklion Crete, Greece
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Electrical Engineering Department, Hellenic Mediterranean University, 71410 Heraklion Crete, Greece
4
General Department, University of Thessaly, 41500 Larissa, Greece
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(9), 3568; https://doi.org/10.3390/su12093568
Received: 3 April 2020 / Revised: 21 April 2020 / Accepted: 24 April 2020 / Published: 27 April 2020
(This article belongs to the Special Issue Sustainable Manufacturing Processes and Machine Tool Technology)
Sustainability in additive manufacturing refers mainly to the recycling rate of polymers and composites used in fused filament fabrication (FFF), which nowadays are rapidly increasing in volume and value. Recycling of such materials is mostly a thermomechanical process that modifies their overall mechanical behavior. The present research work focuses on the acrylonitrile-butadiene-styrene (ABS) polymer, which is the second most popular material used in FFF-3D printing. In order to investigate the effect of the recycling courses on the mechanical response of the ABS polymer, an experimental simulation of the recycling process that isolates the thermomechanical treatment from other parameters (i.e., contamination, ageing, etc.) has been performed. To quantify the effect of repeated recycling processes on the mechanic response of the ABS polymer, a wide variety of mechanical tests were conducted on FFF-printed specimens. Regarding this, standard tensile, compression, flexion, impact and micro-hardness tests were performed per recycle repetition. The findings prove that the mechanical response of the recycled ABS polymer is generally improved over the recycling repetitions for a certain number of repetitions. An optimum overall mechanical behavior is found between the third and the fifth repetition, indicating a significant positive impact of the ABS polymer recycling, besides the environmental one. View Full-Text
Keywords: additive manufacturing; 3D printing; recycling; acrylonitrile-butadiene-styrene (ABS); material characterization additive manufacturing; 3D printing; recycling; acrylonitrile-butadiene-styrene (ABS); material characterization
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MDPI and ACS Style

Vidakis, N.; Petousis, M.; Maniadi, A.; Koudoumas, E.; Vairis, A.; Kechagias, J. Sustainable Additive Manufacturing: Mechanical Response of Acrylonitrile-Butadiene-Styrene over Multiple Recycling Processes. Sustainability 2020, 12, 3568. https://doi.org/10.3390/su12093568

AMA Style

Vidakis N, Petousis M, Maniadi A, Koudoumas E, Vairis A, Kechagias J. Sustainable Additive Manufacturing: Mechanical Response of Acrylonitrile-Butadiene-Styrene over Multiple Recycling Processes. Sustainability. 2020; 12(9):3568. https://doi.org/10.3390/su12093568

Chicago/Turabian Style

Vidakis, Nectarios, Markos Petousis, Athena Maniadi, Emmanuel Koudoumas, Achilles Vairis, and John Kechagias. 2020. "Sustainable Additive Manufacturing: Mechanical Response of Acrylonitrile-Butadiene-Styrene over Multiple Recycling Processes" Sustainability 12, no. 9: 3568. https://doi.org/10.3390/su12093568

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