Moisture-resistant epoxy resin paint for transformer

Abstract

The invention discloses moisture-resistant epoxy resin paint for a transformer. The moisture-resistant epoxy resin paint is composed of the following raw materials in parts by weight: 125-135 parts of modified epoxy resin, 20-30 parts of phenolic resin, 15-20 parts of melamino-formaldehyde resin, 10-20 parts of anti-rust pigment zinc phosphate, 5-6 parts of phthalic acid diethylene glycol acrylate, 1-2 parts of polyacrylic acid, 0.3-0.5 part of fatty alcohol-polyoxyethylene ether ammonium sulfate, 0.2-0.4 part of isopropyl tri(dioctyl pyrophosphoric acid acyloxy) titanate, 0.1-0.3 part of dicumyl peroxide, 0.2-0.6 part of monoethanolamine, 0.1-0.3 part of defoamer polydimethylsiloxane, and 0.1-0.2 part of dioctyl sodium sulfosuccinate. According to the invention, a finished product of emulsion prepared by using the modified epoxy resin is used as a main film-forming material, so that the entire production process is stable and is easy to control, the product consistency is improved greatly, and the stability among batches is good; and the phthalic acid diethylene glycol acrylate is selected as the solvent, so that the odor of the finished product is improved greatly, and environment pollution is reduced when the phthalic acid diethylene glycol acrylate is used in production.

Description

technical field [0001] The invention mainly relates to an epoxy resin paint for a moisture-resistant transformer, which belongs to the field of chemical industry. Background technique [0002] Epoxy resin paint for transformers is widely used in the manufacture of special coils (such as DY coils, electric tool coils, and various transformer coils) due to their excellent moisture resistance and deformation resistance. The epoxy resin paint for transformers produced by the traditional method has the following defects: ordinary industrial phenol and xylene are used as solvents, which have a strong smell, strong irritation, and pollute the environment; it is difficult to control the molecular weight during the synthesis process, resulting in uneven paint quality batches and affecting Batch stability; the process range is small, and the furnace temperature / speed has a great influence on the application of coated wire rods, which has high requirements for coating applicatio...

AI Technical Summary

Problems solved by technology

The epoxy resin paint for transformers produced by the traditional method has the following defects: ordinary industrial phenol and xylene are used as solvents, which have a strong smell, strong irritation, and pollute the environment; it is difficult to control the molecular weight during the synthesis process, resulting in uneven paint quality batches and affecting Batch stability; the process range is small, and the furnace temperature / speed has a great influence on the application of coated wire rods, which has high requirements for coating applications, and it is difficult to form a smooth surface; the adhesion is small and the heat resistance is poor