The invention discloses an electrochemical preparation method for a medical external use aluminum
alloy multifunctional
coating. The medical external use aluminum
alloy multifunctional
coating prepared by the method has multifunctional purposes of decoration,
corrosion resistance, sterilization,
self cleaning and the like. According to the electrochemical preparation method, an aluminum
alloy base material is subjected to
anodic oxidation treatment and electrolytic coloring, so that a
porous oxide film is formed on the surface of the aluminum alloy and contains certain metals such as silver,
copper,
zinc and the like; and the surface of the
oxide film has self-cleaning nanometer
titanium dioxide, so that the aluminum alloy has the functions of decoration,
corrosion resistance, sterilization and
self cleaning. The medical external use aluminum alloy multifunctional
coating prepared by the electrochemical preparation method has the effects of decoration,
corrosion resistance, sterilization and
self cleaning, has the advantages of simple process,
environmental protection, no
toxicity, high stability of film
layers and high practicability, meets various requirements on the aluminum alloy in the aspects of medical external use, and expands the application range of the aluminum alloy. According to the multifunctional coating obtained by the method, the aluminum alloy can be used in various fields of
medical instruments such as disabled person stair handrails, medical carts, wheelchairs, stretchers, supports, intelligent call and the like.