Preparation method of metal corrosion preventing epoxy coating

Abstract

The invention discloses a preparation method of a metal corrosion preventing epoxy coating. According to the preparation method of the metal corrosion preventing epoxy coating, amino trimethylene phosphonic acid, zinc diricinoleate, stearic acid and the like have good anti-corrosion performance, and added silica powder can improve tenacity and strength of finished coating; through organic treatment, the silica powder can effectively improve compatibility with epoxy resin and accordingly improve the storage stability of the finished coating.

Description

Technical field [0001] The invention belongs to the field of coatings, and specifically relates to a method for preparing a metal anticorrosion epoxy coating. Background technique [0002] A large amount of organic solvents such as benzene, toluene, xylene, etc. are added to traditional solvent-based paints, most of which are flammable and explosive toxic substances. Long-term inhalation of the human body can cause fatigue, loss of memory and neurological diseases. In severe cases, it can cause cancer. . Organic volatiles are directly discharged into the atmosphere. Under ultraviolet radiation, photochemical smog and acid rain are formed, which cause serious pollution to the atmosphere and are considered to be one of the main sources of air pollution. With the strengthening of the society's awareness of environmental protection and labor protection, countries around the world have successively formulated laws and regulations to limit VOC emissions. Research and develop high res...

AI Technical Summary

Problems solved by technology

[0003] At the same time, in order to improve the mechanical properties such as surface strength and impact strength of water-based epoxy coatings, inorganic fillers such as silica and bentonite are often added to them. The progress of the coating is poor, there is deposition, and at the same time, the surface of the coating film is uneven and there are particles, which reduces the quality of the finished product;

[0004] Application number 201510399966.1 discloses a new type of water-based epoxy anti-corrosion coating: the coating is composed of the following components by weight, 30-32 parts of epoxy resin, 32-34 parts of butanol, and 0.8-1.0 parts of benzoyl peroxide , 4-6 parts of α-methacrylic acid, 1.3-1.5 parts of butyl acrylate, 1.4 parts of styrene, 72-78 parts of distilled water, 2-6 parts of ammonia water, 30-42 parts of deionized water, 12-14 parts of titanium dioxide, 3-5 parts of talcum powder, 5-13 parts of calcium carbonate, 4-8 parts of propylene glycol, 0.3-0.5 parts of dispersant, 0.2-0.4 parts of defoamer, 2.1-2.3 parts of bentonite and 0.8-1.2 parts of silicone oil, which are the Titanium dioxide, talc powder, calcium carbonate, propylene glycol, dispersant, bentonite, silicone oil, and deionized water are mixed, stirred evenly, and then blended with water-based epoxy-acrylic emulsion, which may easily cause the deposition of inorganic fillers and affect the uniformity and stability of the coating. sex