期刊
POLYMERS
卷 14, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/polym14183756
关键词
recycled polymer; 3D printing; sustainable polymer composites; circular economy; waste valorization
资金
- Ministero dell'Istruzione dell'Universita e della Ricerca [DM 1061/2021]
The excessive use of difficult-to-dispose synthetic materials has raised ecological concerns and led to a shift towards sustainable materials and a circular economy. This study produced bio-filaments for 3D printing from recycled PLA and ceramic waste, demonstrating their potential for low-cost production of 3D-printed models.
In the last years, the excessive use of plastic and other synthetic materials, that are generally difficult to dispose of, has caused growing ecological worries. These are contributing to redirecting the world's attention to sustainable materials and a circular economy (CE) approach using recycling routes. In this work, bio-filaments for the Fused Filament Fabrication (FFF) 3D printing technique were produced from recycled polylactic acid (PLA) and artisanal ceramic waste by an extrusion process and fully characterized from a physical, thermal, and mechanical point of view. The data showed different morphological, thermal, rheological, and mechanical properties of the two produced filaments. Furthermore, the 3D objects produced from the 100% recycled PLA filament showed lower mechanical performance. However, the results have demonstrated that all the produced filaments can be used in a low-cost FFF commercial printer that has been modified with simple hand-made operations in order to produce 3D-printed models. The main objective of this work is to propose an example of easy and low-cost application of 3D printing that involves operations such as the reprocessing and the recyclability of materials, that are also not perfectly mechanically performing but can still provide environmental and economic benefits.
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