Modified waterborne alkyd insulating varnish resin

Abstract

The invention provides a modified waterborne alkyd insulating varnish resin and belongs to the technical field of new materials. The problem of low stability of the prior art is solved. The modified waterborne alkyd insulating varnish resin is prepared from, by weight, the following raw materials: 60-99 parts of trimethylolpropane, 60-98 parts of isophthalic acid, 12-30 parts of 5-SSIPA, 60-100 parts of vegetable oleic acid, 20-40 parts of a vegetable oil containing acrylic prepolymer, 20-40 parts of ethylene glycol tert-butyl ether, 15-25 parts of polyethylene urea, 15-26 parts of nano-silicahybridized organosiloxane, 400-700 parts of tap water and 60-100 parts an amino curing agent. The modified waterborne alkyd insulating varnish resin has high stability.

Description

technical field [0001] The invention belongs to the technical field of new materials and relates to a modified water-based alkyd insulating varnish resin. Background technique [0002] Water-based insulating varnishes are widely used as insulating coatings on motor windings. [0003] Existing water-based insulating varnishes have the following disadvantages: [0004] 1. During the curing process of the drying tunnel, flash rust is easy to occur on the surface of the motor iron core, which eventually leads to rust spots on the product. [0005] 2. The paint on the motor winding is not uniform, the upper end is too small and the lower end is too much, which eventually leads to loose winding wire wrapping and affects the stability of the motor; [0006] 3. When the curing reaction forms a paint film, the amino resin releases formaldehyde, which irritates the eyes; [0007] 4. The hydrophilicity is limited, and more ether co-solvents are needed, and the VOC emission is about ...

AI Technical Summary

Problems solved by technology

[0004] 1. During the curing process of the drying tunnel, flash rust is easy to occur on the surface of the motor iron core, which eventually leads to rust spots on the product

[0005] 2. The paint on the motor winding is not uniform, the upper end is too small and the lower end is too much, which eventually leads to loose winding wire wrapping and affects the stability of the motor;

[0007] 4. The hydrophilicity is limited, and more ether co-solvents are needed, and the VOC emission is about 20%.

[0008] 5. Moisture resistance tends to zero

[0009] It can be seen that the existing water-based insulating varnish not only has poor paint hanging stability and low film-forming quality, but also volatilizes irritating media during use, resulting in poor environmental protection

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