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Epichlorophdrin polyaniline anticorrosion paint and preparation thereof

A technology of anti-corrosion coatings and polyaniline, which is applied in the direction of anti-corrosion coatings, polyamide coatings, epoxy resin coatings, etc., and can solve problems such as not being able to meet the rapid coating requirements of the users, restricting the expansion of applications, and slow drying of coatings.

Inactive Publication Date: 2010-10-13
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above that the film-forming resin of the polyaniline anti-corrosion coating currently being studied is mainly epoxy resin, and its coating is dry slowly, which cannot meet the rapid coating requirements of the user; the anti-corrosion filler is single, resulting in the addition of polyaniline The quantity is large and the cost of coating is high, which limits its expanded application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Preparation of anti-corrosion coating

[0041] 1. Preparation of component A

[0042] Stir MP45 chloroether resin, HCPE1510 high chlorinated polyethylene, E20 epoxy resin and diluent fully first, then add 4130 Bayer iron red, intrinsic polyaniline, 9100 dispersant and grind until the fineness is ≤40μm Get A component. And make the mass percent of MP45 chloroether resin, HCPE1510 high chlorinated polyethylene, E20 epoxy resin, diluent, 4130 Bayer iron red, intrinsic polyaniline and 9100 dispersant be 5%, 10%, 6% successively , 40%, 36%, 2% and 1%.

[0043] 2. Preparation of component B

[0044] Mix the polyamide 305 curing agent and diluent with an ammonia value of 210 mgKOH / g at a mass ratio of 5:5 to obtain component B.

[0045] 2. Anti-corrosion performance test

[0046] The method of using the chloroether polyaniline anticorrosion coating in the present invention is as follows: first, after stirring the A component and the B component according to the mass ra...

Embodiment 2

[0048] 1. Preparation of anti-corrosion coating

[0049] 1. Preparation of component A

[0050] Stir MP35 chloroether resin, HCPE1510 high chlorinated polyethylene, E20 epoxy resin and diluent fully, then add 4140 Bayer iron red, intrinsic polyaniline, 9100 dispersant and grind to fineness ≤ 40μm Get A component. And make the mass percent of MP35 chloroether resin, HCPE1510 high chlorinated polyethylene, E20 epoxy resin, diluent, 4140 Bayer iron red, intrinsic polyaniline and 9100 dispersant be 5%, 10%, 5% successively , 30%, 42%, 5% and 3%.

[0051] 2. Preparation of component B

[0052] Mix polyamide 305 curing agent and diluent with an ammonia value of 210 mgKOH / g at a mass ratio of 6:4 to obtain component B.

[0053] 2. Anticorrosion performance test

[0054] Stir components A and B evenly at a mass ratio of 15:1, adjust the spraying viscosity to 30s~40s with a diluent, and spray on the surface of cold-rolled steel that has been degreased and derusted. Cured for 7 days...

Embodiment 3

[0056] 1. Preparation of anti-corrosion coating

[0057] 1. Preparation of component A

[0058] Stir MP35 chloroether resin, HCPE1510 high chlorinated polyethylene, E20 epoxy resin and diluent fully, then add 4140 Bayer iron red, intrinsic polyaniline, 9100 dispersant and grind to fineness ≤ 40μm Get A component. And make the mass percent of MP35 chloroether resin, HCPE1510 high chlorinated polyethylene, E20 epoxy resin, diluent, 4140 Bayer iron red, intrinsic polyaniline and 9100 dispersant be 6%, 9%, 6% successively , 40%, 36%, 2% and 1%.

[0059] 2. Preparation of component B

[0060] Mix polyamide 305 curing agent and diluent with an ammonia value of 210 mgKOH / g at a mass ratio of 6:4 to obtain component B.

[0061] 2. Anticorrosion performance test

[0062] Stir components A and B evenly at a mass ratio of 15:1, adjust the spraying viscosity to 30s~40s with a diluent, and spray on the surface of cold-rolled steel that has been degreased and derusted. Cured for 7 day...

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Abstract

The invention discloses a double-component anticorrosive coating containing chlorinated polyether and polyaniline. The anticorrosive coating comprises component A consisting of chlorinated polyether resin 4 to 8 percent, high-chlorinated polyethylene 4 to 10 percent, epoxy resin 5 to 10 percent, diluting agent 30 to 45 percent, Bayer iron oxide 30 to 45 percent, polyaniline 1 to 5 percent, and dispersant 1 to 3 percent; and component B consisting of polyamide 50 to 70 percent and diluting agent 30 to 50 percent. Compared with the prior polyaniline anticorrosive coating, the double-component anticorrosive coating can overcome the disadvantage of single film-forming resin to achieve better drying property by compounding chlorinated polyether resin, high-chlorinated polyethylene resin and epoxy resin as the base resin and can be air-dried, and the surface drying time is less than 10 min at 20 DEG C. Secondarily, Bayer iron oxide and polyaniline are used as anticorrosive filler to exert synergistic reaction, improve the anticorrosive performance of the coating and lower the coating cost. Additionally, the method for preparing the double-component anticorrosive coating is simple and feasible.

Description

technical field [0001] The invention relates to a preparation method of polyaniline anti-corrosion paint, which belongs to the technical field of anti-corrosion paint. Background technique [0002] Various metal materials, equipment and devices suffer from different types of corrosion damage in the industrial environment and natural environment. Corrosion problems pervade all sectors and industries of the national economy, and have caused great harm to the development of the national economy, people's lives and the social environment. In order to prevent corrosion, countries all over the world have invested a lot of manpower and financial resources, and adopted various methods for corrosion protection. [0003] Polyaniline is one of the high-tech new materials with special functions. A large number of test results have proved that polyaniline coatings have excellent anti-corrosion capabilities for metals. At present, the development of polyaniline anti-corrosion coatings ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D177/00C09D5/08C09D123/28C09D201/06C09D163/00C09D179/02
Inventor 高焕方
Owner CHONGQING UNIV OF TECH
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