Preparation of RTV Antiflashover Coating with High-Hydrophobic Surface

A new room temperature vulcanized silicon rubber (RTV) antiflashover coating with high hydrophobic surface was prepared industrialized with organic/inorganic hybrid technology by using hydroxyl-terminated polydimethylsiloxane, nano and micro silica with deferent diameter range, silane coupling agent and other additives. With the characterization of the morphology of RTV coating by scanning electron microscope (SEM) and the hydrophobicity property and hydrophobicity transfer property of RTV coating by the static contact angle instrument, it showed that the coating film exhibited excellent hydrophobic properties with high water static contact angle and low roll-off angle with using particular value of silica nanoand micro-particles. It was due to the formation of nano-micro binary structure. The other properties, such as mechanical properties were also investigated, the mechanical properties were enhanced with using particular value of silica nano-and micro-particles. Keywords-component; High Hydrophobic; Silicon Rubber; Flashover; Nano-micro Binary Structure; Contact Angle