PRODUCTION METHOD OF COATINGS, BASED ON NANOPOROUS TITANIUM DIOXIDE Russian patent published in 2017 - IPC C25D11/26 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the production technology of the porous coating, which is the highly ordered array of titaniun dioxide nanotubes, and can be used in devices for purifying the water and the air from organic compounds, in the production of industrial ecology complexes, and also in devices for the hydrogen production. The production method of coatings, synthesized by the anodic oxidation method in the aqueous solution of the organic electrolyte, based on the ethylene glycol includes the preliminary step of the titanium surface cleaning, which additionally includes the surface polishing, and the surface titanium anodic oxidation is carried out in the potentiodynamic mode, when the potential alternating component of the sinusoidal form is applied with the amplitude of 1-10 V with the frequency of 1 Hz - 10 kHz at the potential constant component of 30-80 V.

EFFECT: increase of the nanoporous coating thickness, increase of the nanotubes array ordering degree, the coating hardness, the resistance to abrasion and bending strength.

2 dwg