Coating of Nanotube Ti6Al4V Alloy with Hydroxyapatite-Chitosan-Polyvinyl Alcohol Composite

Hydroxyapatite (HAp) can be applied as a bone implant material. HAp was composited with chitosan and polyvinyl alcohol (PVA) coated to Ti6Al4V improve its biocompatibility. The composite HAp-chitosan-PVA anodized unanodized Ti6Al4V. Modification of the surface by anodizing done using 20 V voltage. metal alloy electrophoretic deposition (EPD) method voltage 80 V. composites in nanotubes non-nanotubes were characterized Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR), corrosion test potentiostat, vitro bioactivity Atomic Absorption Spectroscopy (AAS). XRD results showed distinctive peak indicating that comprises Ti. SEM nanotube show pore size 24 nm. FTIR there functional groups HAp, chitosan, PVA. rate on without coating greater than coating. In decrease Ca2+ concentration faster compared non-nanotube