Room temperature silicon sulfide rubber composite nano-material antifouling flush paint

Abstract

The present invention provides a kind of room temperature silicon sulfide rubber composite nano material pollution flashover resisting coating capable of raising pollution flashover voltage function. Its raw material composition includes 3%-10% of dihydroxypolymethylvinylsiloxane and 12%-20% of dihydroxypolydimethylsiloxane as main material, 0.3%-10% of nano silicon dioxide and 0.3%-10% of nano titanium dioxide as filling material and 50%-65% of diluting agent. Said coating can be used as coating material for coating or brushing surface of insulating body of high-voltage power equipment.

Description

technical field [0001] The invention relates to the field of insulating coatings, and more specifically relates to a room temperature vulcanized silicone rubber composite nano-material antifouling flashover coating applied to the surface coating of external insulation parts of power transmission and transformation equipment. Background technique [0002] There are certain deficiencies in the application process of the existing silicone rubber antifouling flashover coatings. The specific performance is that after the vulcanized coating is soaked in water for a certain period of time, the surface hydrophobicity will be lost, and a large area of ​​continuous water film will be formed on the surface of the coating, or even worse. Although the current DL / T627-2004 standard stipulates that "water immersion for 96 hours; recovery for 24 hours, the hydrophobicity is not lower than HC2 level" can be judged as qualified, but we believe that the current important application characteri...

AI Technical Summary

Problems solved by technology

Although the current DL / T627-2004 standard stipulates that "water immersion for 96 hours; recovery for 24 hours, the hydrophobicity is not lower than HC2 level" can be judged as qualified, but we believe that the current important application characteristics of this product have limitations

Due to the capillary effect of room temperature vulcanized silicone rubber after vulcanization, the moisture permeability of silicone rubber is relatively fast, and water is easy to invade the inside of the rubber body, resulting in poor water resistance.