Waterborne bi-component coal tar pitch anticorrosive paint and preparation method thereof

Abstract

The invention discloses a waterborne bi-component coal tar pitch anticorrosive paint. The waterborne bi-component coal tar pitch anticorrosive paint comprises a component A and a component B, wherein the component A comprises emulsified coal tar pitch, a waterborne epoxy resin emulsion, an organic silicone modified acrylic resin, an SBS modifying agent, a dispersing agent, a defoamer and a wetting agent; the component B comprises a curing agent, composite zinc phosphate, aluminum triphosphate, barium sulfate, a dispersing agent, a defoamer and water; the waterborne epoxy resin emulsion contains a polyoxyethylene group and two epoxy groups. The VOC of the waterborne bi-component coal tar pitch anticorrosive paint is relatively low, the waterborne epoxy emulsion and the organic silicone modified acrylic resin are used as film forming materials, the coal tar pitch and the SBS modifying agent are matched together with other raw materials, so that the waterborne bi-component coal tar pitch anticorrosive paint integrates the advantages of the epoxy resin, the organic silicone modified acrylic resin and the coal tar pitch, is excellent in chemical resistance and water resistance, is an anticorrosive insulating paint with high performances, and has a broad application prospect.

Description

technical field [0001] The invention belongs to the field of water-based coatings, and in particular relates to a water-based two-component coal tar pitch anticorrosion coating and a preparation method thereof. Background technique [0002] At present, oil-based coal tar pitch heavy-duty anti-corrosion coatings are widely used in oil pipelines, container primers, and underground operations because of their good anti-corrosion properties. However, oil-based coal tar pitch heavy-duty anti-corrosion coatings also have the disadvantages of general paints, such as high VOC (volatile organic compounds ) emissions, with the rapid development of our country, we are facing huge environmental protection pressure, and this problem has become more prominent. [0003] For this reason, modified asphalt coatings have appeared in the prior art in an attempt to reduce VOC emissions. For example, the invention patent application with the application publication number CN104845422A discloses ...

AI Technical Summary

Problems solved by technology

For example, the invention patent application with the application publication number CN104845422A discloses "an environment-friendly modified asphalt coating and its preparation method". This scheme does not use volatile organic solvents, but still belongs to oil-based coatings.

Moreover, its construction film-forming performance is not good, so it is not suitable as a heavy-duty anti-corrosion coating.

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