Anticorrosive finishing paint, anticorrosive composite structure and preparation and construction method of anticorrosive finishing paint

Abstract

The invention provides anticorrosive finishing paint, an anticorrosive composite structure and a preparation and construction method of the anticorrosive finishing paint. The method includes: mixing,by weight, 20-60 parts of aliphatic diisocyanate, 4-10 parts of polyatomic alcohol and 40-60 parts of an organic solvent by stirring for 3-4 hours at 70-90DEG C to obtain a component A after completion of reaction; mixing, by weight, 20-80 parts of polyaspartic acid resin, 0-8 parts of an amine chain extender, 20-30 parts of a filler, 0.5-1 part of a dispersing agent and 0.5-5 parts of a defoamingagent by stirring at 5-35DEG C to obtain a component B after even stirring; during construction, mixing the component A with the component B according to the weight ratio of 3:1-5:1 by stirring for reaction at 5-35DEG C to obtain the anticorrosive finishing paint. The anticorrosive finishing paint is applied to the construction base, synthetic speed of the anticorrosive finishing paint is moderate, and the generated anticorrosive finishing paint has the advantages of high binding power, long salt spray resistance and the like.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an anti-corrosion finish paint, an anti-corrosion composite structure and a preparation and construction method thereof. Background technique [0002] In building waterproofing engineering, polyurethane and polyurea are commonly used waterproof coatings. Polyurethane is a polymer material with urethane bonds formed by the chemical reaction of terminal isocyanate compounds and polyhydroxyl compounds; polyurea is a high polymer material with urea bonds formed by the reaction of terminal polyisocyanate compounds and terminal polyamine compounds. molecular material. [0003] Although the existing polyurethane and polyurea materials have waterproof properties and are often used in waterproof coatings, there are still deficiencies in the two waterproof materials of polyurethane and polyurea: the synthesis speed of polyurethane waterproof materials is slow, the film-forming strength ...

AI Technical Summary

Problems solved by technology

[0003] Although the existing polyurethane and polyurea materials have waterproof properties and are often used in waterproof coatings, there are still deficiencies in the two waterproof materials of polyurethane and polyurea: the synthesis speed of polyurethane waterproof materials is slow, the film-forming strength is low, Weak compressive capacity and poor adhesion, the formed waterproof layer cannot be firmly formed on the surface of the construction base, resulting in unstable structure of the waterproof layer and poor waterproof effect; the synthesis speed of polyurea waterproof material is too fast, and the reaction process is not easy Control and poor adhesion, usually need to be used in conjunction with primer materials such as epoxy resin, due to the high viscosity of the primer material, it is necessary to preheat the primer material before applying the primer material to strengthen the primer The fluidity of the material, however, the preheating operation of the primer material increases the construction steps and increases the construction cost, and when the polyurea waterproof material and the primer material are constructed, the construction speed of the two materials needs to be strictly controlled. If the construction speed is not strictly controlled, it will seriously affect the waterproof performance of the obtained mixture. Therefore, polyurea waterproof materials have higher requirements for construction equipment and construction operations.

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