Preparation and application of fluoro-silicon composite coating for anti-condensation

The surface of the switchgear is prone to condensation in the high humidity environment, which seriously endangers the operation of the electrical equipment in the cabinet. In order to prevent condensation, fluoro-silicone composite coating with a low surface energy was prepared and studied. The surface morphology of the coating was characterized using SEM. The obtained fluoro-silicone composite coating achieved a contact angle of 143° and surface energy of $10.3 \mathrm{~mJ} / \mathrm{m}^{2}$. Compared with bare tinplate sheets, condensation time of the coating is delayed by 46 min. Compared with the five common protective coatings, there are no obvious droplets on the surface of fluoro-silicone composite coating at the same condensation time, which proves that it has excellent anticoagulant properties. Our study provides significant research and market opportunities for the anticondensation application of the widely used fluoro-silicone coating.