Electrophoretic Co-deposition of PEEK-Hydroxyapatite Composite Coatings for Biomedical Applications

PEEK-hydroxyapatite (HA) coatings with feasible microstructure, adhesion strength, and in vitro bioactivity. Nanostructured hydroxyapatite (HA) micro-granules were incorporated with PEEK to form PEEK-hydroxyapatite composite coatings via EPD. After EPD, a heat-treatment at 375 ° C, which was applied for densification of the coatings and for enhancing the adhesion between the coatings and the substrates. It was found that both adhesion strength and in vitro bioactivity of the coatings were dependent on the PEEK and HA contents. Thus, increasing the amount of HA improved the bioactivity while decreasing the adhesion strength of the coatings. Apatite-like layer formation. High-quality content after incubation for three days in simulated body fluid (SBF). Finally, EPD of PEEK-hydroxyapatite composite system.