RT journal article
T1 Influence of Cork Waste Processing in the Fabrication of Polymer Composites by Additive Manufacturing
A1 Innocenti, Alessandro
A1 Marzo Gago, Patricia
A1 Burgos Pintos, Pedro
A1 Mata Fernández, María de la
A1 Sanz de León, Alberto
A1 Molina Rubio, Sergio Ignacio
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
A2 Ingeniería Mecánica y Diseño Industrial
K1 cork
K1 polymer composites
K1 fused granular fabrication
K1 large-format additive manufacturing
K1 processing
AB This work evaluates the influence of processing on the production of various cork composites. Cork agro-waste with different particle sizes, namely fine cork (FC, Dp < 250 µm) and coarse cork (CC, 1 mm < Dp < 2 mm), was valorized. It was possible to process composites containing up to 20 wt.% FC and 15 wt.% CC using a twin-screw extruder. These composites were subsequently manufactured via large-format additive manufacturing (LFAM) using fused granular fabrication (FGF). The effects of cork concentration and processing duration in the extruder on particle integration, as well as on the mechanical, physical, and thermal properties of the composites, were studied. As expected, a linear decrease in mechanical properties was observed with increasing cork content. For the same cork content and longer processing durations, properties were similar for FC and CC composites. Shorter processing durations in the extruder minimized degradation of FC. However, partial degradation occurred during FGF printing, leading to the formation of composite foams with increased porosity, lower density, and enhanced thermal insulation.
PB Multidisciplinary Digital Publishing Institute (MDPI)
SN 2073-4360
YR 2025
FD 2025-11
LK http://hdl.handle.net/10498/39627
UL http://hdl.handle.net/10498/39627
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026