3D printing of poly(ester-urethane)/glass-ceramic filaments for manufacturing novel composite scaffolds

N.J. LORES; X. HUNG; M.H. TALOU; J. BALLARRE; G.A. ABRAHAM; P.C. CARACCIOLO

Virtual

Congreso; II Congresso internacional digital em biofabricaçao e bioimpressao 3D; 2022

Sociedade Latino Americana de Biomateriais e Órgãos Artificiais (SLABO)

The combination of additive manufacturing and biomaterials is particularly challenging, especially towards polymer-based biomimetic scaffolds for tissue engineering and medical implants. Fused deposition modeling (FDM) is the oldest, most used, and cost-effective AM technique. FDM is based on the melt-extrusion of a thermoplastic polymer-based filament. It is fed into a heating nozzle to be heated, melted, and then extruded in layer-by-layer fashion until the solid structure is produced. Printing parameters, such as nozzle diameter, raster angle, layer thickness, printing speed and temperature of the nozzle and the platform, play a key role in manufacturing scaffolds.In the present work, SPEU/glass-ceramic (GC) composite filaments are manufactured using a twin-screw extruder and then employed to obtain 3D porous scaffolds by FDM printing. We demonstrated the printability of SPEU-based filaments and characterized their morphology and mechanical properties for potential use in tissue engineering.