High-solid phenolic aldehyde epoxy glass scale anti-corrosion paint and preparation method thereof

Abstract

The invention discloses high-solid phenolic aldehyde epoxy glass scale anti-corrosion paint and a preparation method thereof, and belongs to the field of heavy-duty anticorrosion. The anti-corrosion paint comprises a component A and a component B. The component A comprises, by weight, composite phenolic aldehyde epoxy resin, toughened modified resin, pigments, glass scale powder, fillers, rheological additives and solvents. The component B comprises, by weight, amine curing agents and solvents. The paint has the advantages that solid content is high, chemical resistance is excellent, and one-time construction formed film is thick through interaction between components. After a cabin and the inner wall of a tank are coated with the paint, corrosion of chemicals such as acid, alkaline, organic solvent and oily sewage can be effectively resisted, the service lives of the cabin and the tank are prolonged, and maintaining cost is saved.

Description

technical field [0001] The invention relates to the field of heavy anticorrosion, and relates to a high-solid phenolic epoxy glass flake anticorrosion paint and a preparation method thereof, which can be used as protective materials for chemical tanks and inner walls of chemical tanks. Background technique [0002] The inner walls of the compartments and tanks for storing and transporting chemicals need to be in direct contact with chemicals, and the materials for the compartments and tanks are mostly steel and alloy products, which are easily corroded when in contact with corrosive chemicals, causing the compartments and tanks to be damaged. The service life of the tank is greatly reduced, and the commonly used protection method is to coat the inner wall of the cabin and the tank with protective paint for protection. Due to its excellent chemical resistance and good thermal stability, epoxy resin is widely used in the field of tank anticorrosion, but the solid content of or...

AI Technical Summary

Problems solved by technology

[0002] The inner walls of the compartments and tanks for storing and transporting chemicals need to be in direct contact with chemicals, and the materials for the compartments and tanks are mostly steel and alloy products, which are easily corroded when in contact with corrosive chemicals, causing the compartments and tanks to be damaged. The service life of the tank is greatly reduced. At present, the commonly used protection method is to apply protective paint on the inner wall of the cabin and tank for protection.

Due to its excellent chemical resistance and good thermal stability, epoxy resin is widely used in the field of tank anticorrosion, but the solid content of ordinary epoxy coatings is low, and the film thickness of one coating is low, so it needs to be applied in multiple layers. A large amount of VOC emissions are generated during use, which brings certain harm to the environment and the health of construction personnel.

At the same time, ordinary epoxy coatings are generally resistant to substances such as strong acidity and methanol, which makes the maintenance period of tanks storing such strong corrosive substances shorter, and the maintenance difficulty of such tanks is often high.

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