A kind of epoxy zinc-rich primer and preparation method thereof

Abstract

The invention discloses an epoxy zinc-rich primer and a preparation method thereof. The epoxy zinc-rich primer comprises the following components in percentage by mass: component A: 10-15% of E20 epoxy resin, 0.2-0.4% of dispersant, 2-4% of barium petroleum sulfonate, 30-50% of zinc powder, 10-20% of composite iron-titanium, 5-10% of sericite, 1-1.2% of organic bentonite, and 18.25-21.6% of mixed solvent; component B: 15-30% of cardanol-modified polyamide resin, 1-2% of epoxy accelerator, and 68-84% of mixed solvent. The preparation method for the component A comprises the following steps: adopting the mixed solvent to dissolve each component respectively, then adjusting the viscosity to a desired value through the mixed solvent; the preparation method for the component B comprises the following steps: dissolving each component through the mixed solvent. During use, the volume ratio of the component A and the component B is (3-5):1.

Description

technical field [0001] The invention belongs to the technical field of paint manufacture, in particular to an epoxy zinc-rich primer and a preparation method thereof. Background technique [0002] As people have higher and higher requirements for metal anti-corrosion properties, it is urgent to develop a cost-effective product that can meet the needs of the market. Various epoxy zinc-rich primers appearing on the market at present , but the salt spray resistance performance is not very good, and the cost is high, the present invention greatly improves the salt spray resistance and water resistance performance of the product on the basis of reducing the cost, so as to meet the needs of the market. Contents of the invention [0003] The object of the present invention is to provide a kind of epoxy zinc-rich primer and preparation method thereof in order to overcome above-mentioned deficiencies in the prior art. [0004] The present invention is realized by following technic...

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Problems solved by technology

[0002] As people have higher and higher requirements for metal anti-corrosion properties, it is urgent to develop a cost-effective product that can meet the needs of the market. Various epoxy zinc-rich primers appearing on the market at present , but the performance of salt spray resistance is not very good, and the cost is high. In order to reduce the cost, the present invention greatly improves the salt spray resistance and water resistance of the product, so as to meet the needs of the market

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