A kind of water-based rust conversion shielding coating and preparation method thereof

A barrier coating, water-based technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems of long construction period, adverse effects of coating workability, difficult removal of metal surface, etc., to improve workability, improve salt spray resistance, improve The effect of anti-corrosion properties

Active Publication Date: 2022-05-27
成都华兴邦得建筑装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that it is necessary to completely remove the rust on the metal surface to achieve a good anti-corrosion effect. It is not easy to completely remove the rust on the metal surface by using tools such as hair brushes, especially for special-shaped metals. The surface needs to be polished for a long time to meet the requirements, and the construction period is long, which will have a certain adverse effect on the workability of the coating

Method used

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  • A kind of water-based rust conversion shielding coating and preparation method thereof
  • A kind of water-based rust conversion shielding coating and preparation method thereof
  • A kind of water-based rust conversion shielding coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: the preparation method of water-based rust conversion shielding coating, comprises the steps:

[0040] The tannic acid and water were taken to prepare the tannic acid aqueous solution with a mass concentration of 30%. Take 8.5kg of vinylidene chloride modified acrylic emulsion, add 150g of dodecyl alcohol ester film-forming polymer, 10g of wetting agent and 1kg of tannic acid aqueous solution in turn, and stir at 800 rpm for 30min to obtain water-based rust conversion Barrier paint.

Embodiment 2

[0042] The difference between Example 2 and Example 1 is that in Example 2, an organic acid aqueous solution with a mass concentration of 30% is used instead of the tannic acid aqueous solution. The weight ratio of 0.1 is the same as that of Example 1.

Embodiment 3

[0044] The difference between Example 3 and Example 2 is that the ratio of each component in the organic acid of Example 3 is different. In Example 3, the organic acid is composed of tannic acid, oxalic acid, and citric acid in a weight ratio of 3:1:1 The composition is the same as in Example 2.

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Abstract

The application discloses a water-based rust conversion shielding coating and a preparation method thereof, which relate to the technical field of coatings. A water-based rust conversion shielding coating, mainly made of coating materials comprising the following parts by weight: 75-95 parts of dichloroethylene modified acrylic acid emulsion, 6-14 parts of organic acid aqueous solution, 1-2 parts of film-forming polymer, moistening 0.05-0.15 parts of wet agent; the organic acid aqueous solution contains 25-35% organic acid by weight, and the rest is water; the organic acid includes tannic acid. It has the advantage of good constructability. The preparation method has the advantage of improving the workability of the product.

Description

technical field [0001] The present application relates to the technical field of coatings, in particular to a water-based rust conversion shielding coating and a preparation method thereof. Background technique [0002] Coating is a substance that is used to coat the surface of the object to be protected or decorated, and can form a continuous film with a certain adhesion on the surface of the object to be coated; the coating is usually based on resin, oil or emulsion, adding pigments, Fillers and auxiliaries, viscous liquids prepared with organic solvents or water. Spraying paint on the surface of metal materials can help protect metal materials and prolong the service life of metal materials. The surface of metal materials is easily corroded, and there is often a certain amount of rust. After the coating is sprayed, the metal substrate with rust on the surface is more likely to be further oxidized, the rust increases, and the volume expands, causing the coating layer to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D5/08C09D7/63C09D7/65
CPCC09D133/04C09D5/08C09D7/63C09D7/65C08L71/02C08L83/12C08K5/1545C08K5/092
Inventor 季华兴
Owner 成都华兴邦得建筑装饰材料有限公司
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