Performance enhancement of motor by applying organic/inorganic nanoceramic hybrid resin coating

This paper introduces an organic/inorganic nanoceramic hybrid resin as a replacement for the conventional organic resin coating applied to the silicon steel sheet in electric motors. The organic/inorganic nanoceramic hybrid resin was prepared using the sol–gel method and polymerization. By employing cross-linking and grafting reactions between high thermal conductivity heat dissipation fillers and hybrid resins, excellent insulating coatings with high thermal conductivity and corrosion resistance were achieved. In addition, these coatings exhibit self-adhesive properties, making them suitable as adhesive materials for stacking motor silicon steel sheets. This study performed a film characteristic analysis. The developed coating was then applied to the motor, and its performance was compared with commercially available motors. The experimental results demonstrate that the developed coating enhances the relative protection capability by 88.89%, much higher than the 38.89% of commercially available coatings. The thermal conductivity measurements indicate that the alumina coating increases the thermal conductivity of the silicon steel sheet by 33.14%. In the motor characteristics test, the output power of the aluminum oxide hybrid coating motor increased by approximately 29.6% compared to the traditional welding motor. Additionally, the efficiency of the aluminum oxide hybrid-coated motor increased by 6.7% compared to the control group's welded motor.