Water-based high-gloss anti-rust carbon black color paste, as well as preparation method and application thereof

Abstract

The invention belongs to the field of water-based corrosion-resistant coating and discloses water-based high-gloss anti-rust carbon black color paste, as well as a preparation method and application thereof. The color paste consists of the following components in parts by weight: 0.5 to 2.5 parts of an organic pigment dispersing agent, 1 to 5 parts of an inorganic pigment dispersing agent, 0.1 to 1.0 part of a defoaming agent, 0 to 2.5 parts of a pH regulator, 10 to 25 parts of carbon black, 5 to 20 parts of aluminium triphosphate, 15 to 25 parts of zinc phosphate, 0 to 25 parts of superfine barium sulfate, 1 to 5 parts of a wetting and antifreezing agent, 0 to 4.0 parts of an anti-settling thixotropic agent, 0.1 to 1.0 part of anti-mildew bactericide and 30 to 60 parts of water. The preparation method provided by the invention is simple, environmentally friendly, and low in energy consumption and cost; the prepared water-based high-gloss anti-rust carbon black color paste has excellent performance and high compatibility and color contrast property with various kinds of water-based anti-rust varnish, and is suitable for preparation of high-gloss water-based corrosion-resistant finish paint.

Description

Technical field [0001] The invention belongs to the field of water-based anticorrosive coatings, and particularly relates to a water-based high-gloss anti-rust carbon black paste, and a preparation method and application thereof. Background technique [0002] Color paste as a colorant is an important part of paint. With the development of the coatings, pigments and additives industries, the color matching process of coatings has changed from pigment powder to color paste, and China's color paste industry has also undergone a fundamental change. From the mid-1990s, it basically relied on imports. In the late 1990s, two or three domestic companies and scientific research institutions began to develop their own products, and initially formed a small-scale trial promotion. In the past 20 years, the number of domestic manufacturers specializing in the production of water-based colorants has increased to nearly 50. The application of water-based colorants in architectural coatings, an...

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Problems solved by technology

[0004] As an ideal black pigment, carbon black has good colorability, weather resistance and chemical stability, but carbon black itself has small particles, large specific surface area, and high surface free energy, so carbon black particles form a strong aggregation force , prone to cluster phenomenon, forming Cluster groups, making its properties hydrophobic, difficult to be wetted by water, and difficult to disperse, which is not conducive to its application in water-based coating systems, which limits its application in coatings

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