Impact-modified polyamide 11/carbon nanotubes 3D printing and potential enhancement of toughness in fiber reinforced polymers

Dalia Di Liberto, Arianna Tauro, Davide Perin, Isacco Savioli, Mirko Coser, Giulia Fredi, Daniele Rigotti, Andrea Dorigato, Alessandro Pegoretti, Department of Industrial Engineering, University of Trento

Journal of Reinforced Plastics and Composites

Published online on January 27, 2026

Abstract

Journal of Reinforced Plastics and Composites, Ahead of Print.
Fused filament fabrication (FFF) of semi-crystalline polymers, such as polyamide 11 (PA11), is challenging due to significant shrinkage that occurs during cooling. This issue can be mitigated by blending the polymer with chemically compatible additives, ...