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Waterborne epoxy zinc-rich primer

A water-based epoxy zinc-rich and primer technology, applied in the field of coatings, can solve the problems of unhealthy on-site personnel, affect construction efficiency, pollute the environment, etc., and achieve the effects of high mechanical strength of the paint film, improved construction efficiency, and excellent anti-corrosion performance.

Inactive Publication Date: 2013-11-27
张家港保税区金企鹅贸易有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of 3-component waterborne epoxy zinc-rich coatings: ① The ratio of 3 components needs to be strictly controlled at the construction site
② Zinc powder is mixed at the construction site, and the dust of zinc powder pollutes the environment, which is not good for the health of on-site personnel; ③ It takes a long time for zinc powder to disperse; It is easy to cause the gun to be blocked during spraying, which will affect the construction efficiency

Method used

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Embodiment Construction

[0024] Table 1 is an example of the present invention, wherein the content of each component is in mass percentage, but the present invention is not limited to the following examples.

[0025] Table 1

[0026]

[0027]

[0028] In Table 1, the above-mentioned modified polyamine curing agent is the water-based modified fatty amine (trialkyl tertiary amine) of American Air Chemicals

[0029] ANCAMN2459 and water-based polyamide ANCAMID2634 are mixed according to the weight ratio of 8:1-10:1; the anti-settling thixotropic agent is Degussa nano-scale fumed silica A200; propylene glycol methyl ether can be replaced by acetone or Ethylene glycol butyl ether; polyacrylic acid sodium salt dispersant can be replaced by other alkenyl monomers (styrene, diisobutylene) and unsaturated carboxylic acid (acrylic acid, methacrylic acid, maleic acid) copolymerization Sodium, ammonium, amine salts of substances, such as Henkel's 5040 dispersant; 600 mesh talcum powder, 600 mesh mica powd...

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Abstract

The invention provides a waterborne epoxy zinc-rich primer. The waterborne epoxy zinc-rich primer is characterized by comprising component A and component B, wherein the component A comprises 3 to 10 wt% of a modified polyamine curing agent, 75 to 90 wt% of zinc dust, 2 to 10 wt% of a cosolvent, 0.1 to 2 wt% of an anti-settling thixotropic agent, 0.2 to 2 wt% of a dispersant and 0.2 to 20 wt% of an antifoaming agent, the zinc dust is nano-scale zinc dust, the component B comprises 14 to 60 wt% of a waterborne epoxy resin, 38 to 85 wt% of softened water and 0.2 to 2.0 wt% of a neutralizer, and a mass ratio of the component A to the component B is 100: 45.

Description

technical field [0001] The invention relates to a coating, in particular to a water-based epoxy zinc-rich primer for containers. Background technique [0002] Traditional container coatings are mostly solvent-based coatings. Common varieties include epoxy, chlorinated rubber, acrylic, polyurethane, etc., which contain a large amount of organic solvents. These solvents are harmful to the health of construction workers and pollute the environment. Since the early 1970s, the development of environmentally friendly anti-corrosion and anti-rust paints such as high solid content, solvent-free, powder and water-based paints has been carried out in foreign countries. Among them, water-based paints have received more research because of their low cost, safe and convenient construction, and easy control of film thickness. . However, due to technical difficulties, great progress has not been made for a long time. Since the mid-1980s, the environmental protection regulations of variou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/10
Inventor 王蒙娜
Owner 张家港保税区金企鹅贸易有限公司
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