A kind of anti-flash rust agent and its preparation method and application

An anti-flash rust agent and reaction technology, applied in the direction of anti-corrosion coatings, etc., can solve the problems of complex compound components, poor long-term performance, and heavy metals
CN108192088BActive Publication Date: 2020-10-30岳阳凯门水性助剂有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
岳阳凯门水性助剂有限公司
Publication Date
2020-10-30

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Abstract

The invention relates to the technical field of anti-flash rust agents, in particular to an anti-flash rust agent as well as a preparation method and application thereof. The anti-flash rust agent takes an alkoxy chain as a main chain, one end of the alkoxy chain as the main chain comprises alkynyl, and the other end of the alkoxy chain as the main chain comprises phosphate salt. The anti-flash rust agent comprises two functional groups, namely the alkoxy and the phosphate salt; not only can the adsorption and the coordination be performed on the surface of a substrate to effectively prevent the formation of flash rust in a waterborne coating, but also the problem of return to rust in water after a waterborne coating paint film is dried can be solved; the anti-flash rust agent can be applied to the various fields, in particular to the field of coatings and can be firmly absorbed on the surface of the substrate to form a protective film within a short time, thereby showing excellent rust resistance and salt fog resistance and achieving the purpose of long-time rust resistance.
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Description

technical field

[0001] The invention relates to the technical field of anti-flash rust, in particular to an anti-flash rust agent and its preparation method and application. Background technique

[0002] Waterborne acrylic emulsions are widely used in architectural coatings, but when applied to metal substrates, waterborne industrial coatings formulated with traditional acrylic emulsions have always had problems with flash rust.

[0003] Flash rust is a kind of corrosion phenomenon that occurs on the metal surface during the drying process of the paint film. There are two main causes: one is the electrochemical phenomenon. The water-based emulsion contains more water when the paint is mixed, and the water in the paint volatilizes when the paint film is formed. Slower, and the viscosity of the paint is higher, resulting in a higher surface tension, unable to infiltrate the tiny pores on the metal surface, moisture and oxygen undergo proton transfer reactions on the metal surf...

Claims

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