Preparation method of wear-resistant, high-viscosity and anti-corona paint

Abstract

The invention relates to a preparation method of wear-resistant, high-viscosity and anti-corona paint and belongs to the technical field of coating preparation. The preparation method has the advantages that microorganisms in biogas slurry are used to allow rice husks to be slightly corroded so as to allow the surfaces of the rice husks to have rich micropore structures, compatibility between resinification products on the surface and in the pores of modified silicon carbide and primer epoxy resin is high, nano attapulgite is used as the raw material and mixed with vegetable oil, the silicon carbide is prepared into the anti-corona paint by using the feature that the resistance of the silicon carbide evidently lowers along with the increasing of the strength of an externally applied electric field, and an extremely good anti-corona effect can be achieved; in addition, the silicon carbide and the attapulgite are high-temperature-resistant wear-resistant filler, the modified silicon carbide and the surface of the attapulgite have a large number of active groups, chemical bonding force can be generated between the active groups and active groups on the surface of a paint layer to forma compact cross-linked network structure, the high-temperature resistance and wear resistance of the anti-corona paint layer are increased greatly, and promising application prospect is achieved.

Description

technical field [0001] The invention relates to a preparation method of a wear-resistant high-viscosity anti-corona paint, which belongs to the technical field of paint preparation. Background technique [0002] Corona discharge is a kind of discharge phenomenon in which the air in the local space is ionized at the place where the field strength is sharp (such as the sharp point of the electrode) in an extremely uneven electric field, resulting in a blue halo. [0003] Anti-corona paint is generally made of insulating varnish and non-metallic conductor (carbon black, graphite, etc.) powder. It is mainly used as anti-corona paint for high-voltage coils, such as for coil ends with high voltage in large-scale high-voltage motors. The industry requires that the anti-corona paint has stable surface resistivity, strong adhesion, good wear resistance, fast drying speed, and storage resistance. The anti-corona paint can be coated on the surface of the coil alone, or on asbestos tape...

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that common anti-corona paints have poor high temperature resistance after curing, low abrasion resistance, poor compatibility between anti-corona fillers and primers, and poor adhesion between the paint layer and the substrate, resulting in paint layer It is easy to fall off, which affects its anti-corona performance, and provides a preparation method for wear-resistant and high-viscosity anti-corona paint

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