3D Printing of PLA/Magnetic Ferrite Composites: Effect of Filler Particles on Magnetic Properties of Filament

Three-dimensional printing is one of the most promising areas additive manufacturing with a constantly growing range applications. One current tasks development new functional materials that would allow manufacture objects defined magnetic, electrical, and other properties. In this work, composite magnetic filaments for 3D tunable properties were produced from polylactic acid thermoplastic polymer addition ferrite particles different size chemical composition. The used cobalt CoFe2O4 nanoparticles, mixture zinc-substituted Zn0.3Co0.7Fe2O4 nanoparticles (~20 nm), barium hexaferrite BaFe12O19 microparticles (<40 µm). maximum coercivity field HC = 1.6 ± 0.1 kOe was found filament sample inclusion 5 wt.% microparticles, minimum zinc–cobalt spinel ferrites. Capabilities FDM method to produce parts having simple (ring) complex geometric shapes (honeycomb structures) demonstrated.