Epoxy anticorrosive primer and production process thereof

Abstract

The invention relates to the field of epoxy primers, and particularly discloses an epoxy anticorrosive primer and a production process thereof. The epoxy anticorrosive primer is prepared from the following raw materials in parts by weight: 35-45 parts of epoxy resin, 8-12 parts of an epoxy resin curing agent, 2-3.5 parts of an anti-settling agent, 15-25 parts of a filler, 12.5-24.5 parts of zinc powder, 2.5-7 parts of graphene, 5.5-10 parts of a dispersing agent and 15-25 parts of a mixed solvent. The production process comprises the following steps: S1, uniformly mixing the raw materials of an antirust material in proportion to obtain the antirust material; S2, uniformly mixing the epoxy resin, the anti-settling agent, the filler, the antirust material and the mixed solvent in proportion;and S3, adding the epoxy resin curing agent into the mixed solution obtained in the step S2, and carrying out uniform stirring to obtain the epoxy anticorrosive primer. The production process has theadvantage that the corrosion resistance and the self-repairing capacity of the epoxy primer are improved.

Description

technical field [0001] This application relates to the field of epoxy primer, more specifically, it relates to a kind of epoxy anticorrosion primer and its production technology. Background technique [0002] Epoxy primer is an anti-corrosion coating with epoxy resin as the main film-forming substance. It is used as a primer and is suitable for carbon steel, cast iron and other iron substrates. It has the functions of anti-corrosion, anti-rust and salt spray resistance. Epoxy primers are mainly gray and iron red, with strong adhesion to steel and good adhesion of the paint film to ensure that the coating does not fall off. Epoxy primers cannot be used alone in outdoor environments. The paint film is not resistant to ultraviolet rays, easy to chalk, and loses its protective effect. It needs to be equipped with a weather-resistant topcoat. [0003] The current epoxy primer usually uses epoxy resin and epoxy resin curing agent to cross-link and cure to form a resin matrix coat...

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Problems solved by technology

[0004] In view of the above-mentioned prior art, the inventor believes that although the epoxy primer has the function of protecting the base metal from rust, when the epoxy coating is damaged and the base metal is partially exposed, the exposed base metal cannot be protected. Susceptible to localized corrosion, which in turn weakens the bond between the epoxy primer coating and the base metal

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