A kind of self-cleaning antifouling flashover paint and preparation method thereof

Abstract

The invention belong to the technical field of chemical coatings, and relates to anti-pollution flashover coatings for electrical equipment, in particular to the anti-pollution flashover coatings which can achieve a self-cleaning effect, and a preparation method thereof. The self-cleaning anti-pollution flashover coatings are prepared by end hydroxyl polysiloxane, white carbon black, modified flame retardants, micron extinction powder, pigment, crosslinking agents, catalysts and solvents according to designated weight portions. Through adding of micron particles and nano-silica on the surface structure of the self-cleaning anti-pollution flashover coatings to form a roughened surface provided with a micron-nanometer structure, namely, the micron-nanometer structure with the surface similar to lotus effects, so that the actual contact area of solid-liquid phase of the outer surface of the coatings is larger than the observed area on an apparent geometry. The hydrophobicity and adhesive attraction resistant action of the coatings are greatly enhanced, the coatings can have a self-cleaning ability, and anti-pollution flashover effects are greatly enhanced.

Description

technical field

[0001] The invention belongs to the technical field of chemical coatings, and in particular relates to an antifouling flashover coating for electric equipment, in particular to an antifouling flashover coating capable of realizing self-cleaning effect and a preparation method thereof. Background technique

[0002] Pollution flashover refers to the fact that the soluble substances of the dirt attached to the insulating surface of electrical equipment gradually dissolve in water under humid conditions, forming a conductive film on the insulating surface, greatly reducing the insulation level of the insulator, and appearing under the action of the electric field Phenomenon of strong discharge. Due to the widespread adoption of EHV transmission and DC transmission technologies in the power system, pollution flashover has become a catastrophic failure that seriously threatens the safe operation of equipment and power grids in the power system, and is listed as the...