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Waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and preparation method thereof

A technology of anti-corrosion coatings and water-based curing agents, applied in anti-corrosion coatings, coatings, etc., can solve problems such as polluting the environment and diluents irritating the skin, and achieve the effect of increasing anti-corrosion performance and improving anti-corrosion performance

Active Publication Date: 2012-10-10
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing polyaniline anti-corrosion coating technology uses diluents to irritate the skin and pollute the environment, the invention provides a water-based ultraviolet light-heat dual-curing polyaniline anti-corrosion coating and its preparation method

Method used

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  • Waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and preparation method thereof
  • Waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and preparation method thereof
  • Waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and preparation method thereof

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preparation example Construction

[0066] The preparation method of water-based ultraviolet light-heat dual curing polyaniline anticorrosion coating of the present invention, comprises the following steps: by the weight part of the component of waterborne ultraviolet light-thermal double curing polyaniline anticorrosion coating,

[0067] (1) Put the water-based polyurethane acrylate oligomer, water-based polyurethane resin and water-based polyaniline powder into a sand mill tank, and stir at a speed of 600-1200 rpm for 0.5-3 hours to obtain a mixture;

[0068] (2) Add a photoinitiator, a leveling agent and a defoamer to the mixture obtained in step (1), and stir at a speed of 900-1500 rpm for 0.5-3 hours;

[0069] (3) Add a water-based curing agent, and stir at a speed of 800-1100 rpm for 0.5-3 minutes to obtain a dark green water-based UV-heat dual-curing polyaniline anti-corrosion coating;

[0070] Described waterborne polyurethane acrylate oligomer is cationic waterborne polyurethane acrylate oligomer or non...

Embodiment 1

[0092] Waterborne UV-heat dual curing polyaniline anti-corrosion coating WP 1 Preparation of:

[0093] By WP in Table 2 1 parts by weight,

[0094] (1) Put the water-based polyurethane acrylate oligomer, water-based polyurethane resin and water-based polyaniline powder in the sand mill tank, and stir for 3 hours at a speed of 600 rpm;

[0095] (2) Add the photoinitiator, leveling agent and defoamer to the mixture obtained in step (1), and stir at a speed of 1500 rpm for 0.5 hours;

[0096] (3) Add a water-based curing agent to the mixture obtained in step (2), and stir at a speed of 800 rpm for 3 minutes to obtain a water-based UV-thermal dual-curing polyaniline anticorrosive coating WP 1 .

[0097] The obtained water-based UV-heat dual curing polyaniline anticorrosion coating WP 1 Spray on pre-polished, degreased and derusted metal steel plates, leveling at 50°C for 3 minutes, irradiating with a 3kw UV lamp, curing time 15s, and then baking at 60°C for 2 minutes to get WP ...

Embodiment 2

[0099] Waterborne UV-heat dual curing polyaniline anti-corrosion coating WP 2 Preparation of:

[0100] By WP in Table 2 2 parts by weight,

[0101] (1) Put the water-based polyurethane acrylate oligomer, water-based polyurethane resin and water-based polyaniline powder in the sand mill tank, and stir at a speed of 1200 rpm for 0.5 hours;

[0102] (2) Add photoinitiator, leveling agent and defoamer to the mixture obtained in step (1), and stir at a speed of 900 rpm for 3 hours;

[0103] (3) Add a water-based curing agent to the mixture obtained in step (2), and stir at a speed of 1100 rpm for 0.5 minutes to obtain a water-based UV-thermal dual-curing polyaniline anticorrosive coating WP 2 .

[0104] The obtained water-based UV-heat dual curing polyaniline anticorrosion coating WP 2 Spray on pre-polished, degreased, and derusted metal steel plates, leveling at 50°C for 3 minutes, irradiating with a 3kw UV lamp, curing time 30s, and then baking at 45°C for 5 minutes to obtai...

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Abstract

The invention relates to a waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and a preparation method thereof, which belong to the field of metal anticorrosive paint and solve the technical problem that the prior polyaniline anticorrosive paint irritates human skin and pollutes the environment due to use of diluent. The anticorrosive paint comprises the following components by weight portions: 4.9-62.5 portions of waterborne polyurethane acrylate oligomer, 9.3-43.1 portions of waterborne polyurethane resin, 10.2-46.6 portions of waterborne curing agent, 0.3-6.6 portions of waterborne conducting polyaniline powder, 0.7-7.3 portions of photoinitiator, 0.2-1.9 portions of waterborne leveling agent and 0.3-1.5 portions of waterborne antifoaming agent. The pot life of the anticorrosive paint is up to six hours, the ultraviolet curing process is completed within 15-30 seconds, the heat curing process is completed within 2-5 minutes at lower temperature of 45-60 DEG C, the salt-spray resistance experiment exceeds 570 hours, no reactive diluent exists, and the anticorrosive paint is environment-friendly.

Description

technical field [0001] The invention belongs to the field of metal anticorrosion coatings, and in particular relates to a water-based ultraviolet light-heat dual curing polyaniline anticorrosion coating and a preparation method thereof. Background technique [0002] There are two main types of metal anti-corrosion coatings: one is to apply organic coatings containing heavy metals such as chromium, lead, molybdenum and other corrosion inhibitors and organic or inorganic coatings containing zinc. Although this method is effective, it is harmful to the environment. Once the coating is slightly scratched, its anti-corrosion effect will be greatly reduced; the other type is polyaniline anti-corrosion coatings, commercially available polyaniline anti-corrosion coatings widely use two types of coatings, one is intrinsic state polyaniline anti-corrosion coatings Coating is made by adding intrinsic polyaniline powder into epoxy resin, stirring and grinding. The relevant technical con...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/12C09D5/08
Inventor 张红明孙杨李季王献红王佛松
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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