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Heavy-duty coating for prolonging life of sheet metals and preparation method thereof

A metal sheet and anti-corrosion coating technology, applied in anti-corrosion coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of inability to achieve and restrict the development of the anti-corrosion coating industry, and achieve excellent product performance, strong compactness and high hardness. Effect

Active Publication Date: 2012-11-07
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional primer has a salt spray resistance of up to 200 hours of neutral salt spray under the condition that the paint film is 35-50UM without affecting the overall performance of the paint, and the salt spray resistance of more than 240 hours can hardly be achieved.
Therefore, greatly restricting the development of anti-corrosion coating industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for preparing a heavy-duty anti-corrosion paint for prolonging the service life of metal plates, the method comprising the following process steps:

[0055] a, the preparation of epoxy component:

[0056] (1) First put all the solvents, namely 15 kg of methyl isobutyl ketone and 20 kg of n-butanol into the reaction kettle, and heat to about 45°C for stirring;

[0057] (2) Keep stirring and put 40 kg of amino resin and 5 kg of vinyl resin into the reaction kettle in turn, and stir for about 1 hour;

[0058] (3) Slowly drop 10 kilograms of acrylic acid modified epoxy resin into the reaction kettle after mixing evenly;

[0059] (4) When all the solids are dissolved and mixed evenly, shut down and mature for more than 12 hours;

[0060] (5) Measure the solid content and adjust it to not less than 60wt%;

[0061] (6) Put in antirust material and auxiliary agent, grind after stirring evenly;

[0062] (7) When the fineness is qualified, the material is discharged,...

Embodiment 2

[0070] A preparation method of a heavy-duty anti-corrosion coating for prolonging the service life of a metal plate, the method comprising the following process steps:

[0071] a, the preparation of epoxy component:

[0072] (1) First put all the solvents, namely 15 kg of methyl isobutyl ketone and 15 kg of n-butanol into the reaction kettle, and heat to about 45°C for stirring;

[0073] (2) Keep stirring and put 20 kg of epoxy resin and 10 kg of vinyl resin into the reaction kettle in turn, and stir for about 1 hour;

[0074] (3) After being mixed evenly, 5 kilograms of acrylic acid modified epoxy resins are slowly dropped into the reactor;

[0075] (4) When all the solids are dissolved and mixed evenly, shut down and mature for more than 12 hours;

[0076] (5) Measure the solid content and adjust it to not less than 60wt%;

[0077] (6) Put in antirust material and auxiliary agent, grind after stirring evenly;

[0078] (7) When the fineness is qualified, the material is d...

Embodiment 3

[0086] The invention relates to a heavy-duty anti-corrosion coating for prolonging the service life of metal plates. The anti-corrosion coating is obtained by mixing an epoxy component and a curing component at a weight ratio of 4:1. Among them, the epoxy component includes the following components and content: resin 18kg, additive resin 4kg, antirust material 28kg, solvent 15kg, auxiliary agent 4kg, resin is amino resin, additive resin is acrylic modified epoxy resin, antirust material Iron oxide red is selected, and methyl isobutyl ketone is selected as the solvent. The curing components include the following components and contents: 40kg of amine adducts, 15kg of curing aids, and 5kg of solvents. The solvent is methyl isobutyl ketone, the amine adducts are polyamides, and the curing aids are commercially available TMP-30.

[0087] A method for preparing a heavy-duty anti-corrosion coating for prolonging the life of a metal plate, the method comprising the following steps: ...

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PUM

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Abstract

The invention relates to a heavy-duty coating for prolonging life of sheet metals and a preparation method of the heavy-duty coating. The heavy-duty coating is obtained by mixing an epoxy component and a curing component according to the weight ratio of 4:1, wherein the raw materials of the epoxy component comprise resin, additive resin, an anti-rust material, a solvent and an auxiliary agent; and the raw materials of the curing component comprise an amine adduct, a curing auxiliary agent and a solvent. Compared with the prior art, the product obtained by the preparation method has the excellent performances as follows: the hardness is not less than 2H, the adhesion is 0-1 level, the corrosion resistance is improved by 7-10 times in comparison with the traditional surface treatment, and the heavy-duty coating can resist salt spray test for 1000h or more.

Description

technical field [0001] The invention relates to a heavy-duty anti-corrosion paint and a preparation method thereof, in particular to a heavy-duty anti-corrosion paint and a preparation method thereof for prolonging the service life of metal plates. Background technique [0002] Most metal plates need to be sprayed with anti-corrosion coatings to prolong their service life, especially in some special industries, which need to be applied in relatively harsh corrosive environments and have a type of heavy-duty anti-corrosion coating that can achieve a longer protection period than conventional anti-corrosion coatings. [0003] In the automotive industry, with the increase of the service life and mileage of the vehicle, the corrosion of various parts gradually intensifies. The most commonly corroded parts are sheet metal parts, such as cabs, car trunks, bus shells, car parts, etc. Floor, fender, front (fender, mask), etc. These parts are often in contact with sand, gravel and w...

Claims

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Application Information

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IPC IPC(8): C09D161/20C09D163/00C09D167/08C09D167/00C09D175/04C09D201/02C09D5/08
Inventor 谢平展
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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