RT Journal Article
T1 Technical Evaluation of Mechanical Recycling of PLA 3D Printing Wastes
A1 Moreno Escribano, Eduardo
A1 Beltrán González, Freddys
A1 Arrieta Dillon, Marina Patricia
A1 Gaspar Roa, Gerald Manuel
A1 Martínez Muneta, Mª Luisa
A1 Carrasco Gallego, Ruth
A1 Yáñez Gutiérrez, Susana
A1 Hidalgo Carvajal, Raúl
A1 Orden Hernández, María Ulagares de la
A1 Martínez Urreaga, Joaquín
AB The importance of 3D printing is growing rapidly. A recent example of this increasing importance involves the fight against the Covid-19 pandemic, in which 3D printing has helped to overcome the shortage of critical supplies. However, 3D printing generates large amounts of plastic waste that could pose an environmental problem, thus making it necessary to find methods for the correct management of such wastes. The combination of additive manufacturing and distributed mechanical recycling can contribute to the development of a more circular economy. The main goals of this work were to characterize the poly(lactic acid) (PLA) wastes generated in 3D printing processes and evaluate the effect of their heterogeneity on the technical feasibility of mechanical recycling. Two PLA 3D printing wastes were used: waste coming from a well-known PLA grade, and a mixture of PLA 3D printing residues coming from an association of coronamakers in Madrid. Recycled material obtained from the waste of a well-known PLA grade shows good properties, similar to those for non-used material. However, the recycled material obtained from mixed PLA waste shows lower viscosity values, higher crystallization ability and less transparency. These results highlight that special attention should be paid to the sorting and characterization of the 3D wastes, to obtain recycled materials with good properties.
PB MDPI
SN 2504-3900
YR 2020
FD 2020-11-04
LK https://hdl.handle.net/20.500.14352/8109
UL https://hdl.handle.net/20.500.14352/8109
LA eng
NO This article belongs to the Proceedings of The First International Conference on “Green” Polymer Materials 2020.
NO Unión Europea. Horizonte 2020
NO Ministerio de Economía y Competitividad (MINECO)
NO Universidad Politécnica de Madrid
DS Docta Complutense
RD 28 abr 2024