Preparation and characterization of inorganic film with anti-pollution-flashover function

TiO2 photocatalyst was coated and solidified on the insulator surface to form a film with anti-pollution-flashover function. The coating technology was explored, and XRD, UV-Vis, SEM and FT-IR were employed to characterize the film structure and test its photocatalytic activity. The electric property and the non-soluble deposit density (NSDD) on line were also tested, respectively. Comparing with the insulator without film, the electric property of the insulator with the film was not changed remarkably. The value of NSDD for the insulator with the film was 1/35 of that without film after six months hanging. The insulator with the film displays a good photocatalytic self-cleaning capability while satisfying the basic electric performance, and a function of anti-pollution-flashover.