Anticorrosive paint and preparation method thereof

Abstract

The invention discloses an anticorrosive paint and a preparation method thereof, the anticorrosive paint comprises an inner layer paint and a surface layer paint, the thickness of an inner coating layer formed by brushing the inner layer paint is 500-800 microns, the thickness of a surface coating layer formed by brushing the surface layer paint is 80-120 microns, the inner coating layer is in direct contact with the surface of a protected metal piece, the surface coating is brushed on the outer surface of the inner coating, the inner coating is prepared from an inner active component and a curing agent component in proportion, and the surface coating is prepared from a surface active component and a curing agent component in proportion. The modified polyethylene fiber with good water guiding capacity is prepared from montmorillonite, polyethylene fiber and other materials, conduction of free water in the coating is accelerated, drying of the coating is accelerated, meanwhile, the shrinkage resistance, impact resistance and heat preservation and heat insulation capacity of the coating can be improved, meanwhile, an epoxy resin system is adopted, the binding force between the coating and metal firmware is improved, so that the shielding effect of the coating on a corrosive medium is enhanced.

Description

technical field [0001] The invention belongs to the technical field of production and processing of special coatings, and in particular relates to an anti-corrosion coating and a preparation method thereof. Background technique [0002] Anti-corrosion coatings are an indispensable coating in paints and coatings. Anti-corrosion coatings can effectively protect metals and wood materials from corrosion and prolong the effective service life of the protected materials. Therefore, in order to ensure the anti-corrosion effect of anti-corrosion coatings, on the one hand To ensure the properties of the anti-corrosion coating itself, on the other hand, it is necessary to improve the bonding properties of the anti-corrosion coating and the surface of the protected material. [0003] In the prior art, the anticorrosion principles of anticorrosion coatings are mainly chemical anticorrosion, physical anticorrosion and electrochemical anticorrosion. Among them, chemical anticorrosion is t...

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Problems solved by technology

[0003] In the prior art, the anticorrosion principles of anticorrosion coatings are mainly chemical anticorrosion, physical anticorrosion and electrochemical anticorrosion. Among them, chemical anticorrosion is to add amphoteric compounds to anticorrosion coatings to deal with acid-base corrosion in the environment. The principle of physical anticorrosion is through The coating formed by the anti-corrosion coating isolates the protected material from the environment, so as to achieve the purpose of anti-corrosion, while the electrochemical anti-corrosion is to passivate the metal surface by generating anti-corrosion ions in the anti-corrosion coating, preventing the dissolution of metal ions, so as to achieve anti-corrosion For the purpose of anticorrosion, several methods are often used together in the prior art so that anticorrosion coatings can achieve better anticorrosion effects, and anticorrosion coatings are divided into conventional anticorrosion coatings and heavy-duty anti-corrosion coatings compared to conventional anti-corrosion coatings. Heavy-duty anti-corrosion coatings The coating can be used in a relatively harsh environment and has a longer protection period. However, due to its thicker thickness, the heavy-duty anti-corrosion coating will also cause problems such as slow drying speed and high binding force requirements. In order to solve this problem, the present invention provides The following technical solutions

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