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Article

3D Printing of Polymer Waste for Improving People’s Awareness about Marine Litter

Department of Engineering for Innovation, University of Salento, Via Arnesano, 73100 Lecce, Italy
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Polymers 2020, 12(8), 1738; https://doi.org/10.3390/polym12081738
Received: 1 July 2020 / Revised: 28 July 2020 / Accepted: 31 July 2020 / Published: 4 August 2020
(This article belongs to the Special Issue Polymer Recycling: Degradation, Processing, Applications)
This work is aimed at proposing demonstrative actions devoted to show reprocessing and recyclability of PET originating from bottles collected from the seaside, in order to increase the consumer awareness on the importance of recycling plastics. To this purpose, collected bottles were washed, cut, grinded, extruded in the form of a thin wire adopting different cooling rates, which leads to a modulation of the crystallinity content. Once having optimized the processing parameters, the extruded wire was used to produce 3D printed samples through the fused deposition modelling (FDM). The changes in the crystalline structure due to the different processing conditions were assessed by DSC and XRD analyses, while rheological tests were performed in order to evaluate any modification in the viscosity of PET after repeated processing cycles. The reduction in thermal stability was confirmed by TGA analysis, which showed a progressive decrease in the degradation temperature as processing cycles increased. Finally, tensile tests highlighted the difference in the mechanical response due to the predominance of the crystalline or amorphous phase in the tested sample. In particular, a good mechanical behavior was found for the 3D-printed samples. View Full-Text
Keywords: PET; recycling; 3D printing PET; recycling; 3D printing
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MDPI and ACS Style

Ferrari, F.; Esposito Corcione, C.; Montagna, F.; Maffezzoli, A. 3D Printing of Polymer Waste for Improving People’s Awareness about Marine Litter. Polymers 2020, 12, 1738. https://doi.org/10.3390/polym12081738

AMA Style

Ferrari F, Esposito Corcione C, Montagna F, Maffezzoli A. 3D Printing of Polymer Waste for Improving People’s Awareness about Marine Litter. Polymers. 2020; 12(8):1738. https://doi.org/10.3390/polym12081738

Chicago/Turabian Style

Ferrari, Francesca, Carola Esposito Corcione, Francesco Montagna, and Alfonso Maffezzoli. 2020. "3D Printing of Polymer Waste for Improving People’s Awareness about Marine Litter" Polymers 12, no. 8: 1738. https://doi.org/10.3390/polym12081738

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