Effect of carbon and organoclay fillers on partial discharge and corrosion properties of polyurethane base composite coated on aluminum alloy

The corrosion and partial discharge of the aluminum alloy conductor, which may occur during operation, can be reduced by coating the aluminum alloy with other materials. This research investigates the corrosion and partial discharge of the aluminum alloy conductor coated with polyurethane/carbon/organoclay (PCClay) composite materials. Polyurethane as a matrix, and carbon and organoclay as a filler were used as composites. Po-tentiodynamic and partial charge tests were conducted to meas-ure the corrosion rate and partial discharge behavior versus volt-age. The results showed that increasing the filler content may lead to agglomeration, decrease corrosion resistance, and decrease partial discharge. The voltage, where the initial partial discharge occurs, increases as the filler content increases.