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A kind of water-based coating with high salt spray and high weather resistance and preparation method thereof

A water-based coating, high weather resistance technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problem that a single coating does not meet the requirements of high weather resistance and high salt spray, and achieve smooth and bright appearance, good weather resistance, and good mechanical properties Effect

Active Publication Date: 2016-08-17
HAOLISEN COATING SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the requirements of weather resistance and salt spray resistance on the market cannot meet the needs of the market, and a single coating has not yet met the requirements of high weather resistance and high salt spray, so it is urgent to develop a water-based coating with high salt spray and high weather resistance

Method used

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  • A kind of water-based coating with high salt spray and high weather resistance and preparation method thereof
  • A kind of water-based coating with high salt spray and high weather resistance and preparation method thereof
  • A kind of water-based coating with high salt spray and high weather resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) The formula of the acrylic modified emulsion with high salt spray and high weather resistance with core-shell structure:

[0025]

[0026]

[0027] Mix 6 parts by weight of perchlorethylene, 2 parts by weight of acrylic acid, 2.4 parts by weight of hydroxyethyl acrylate, 5.5 parts by weight of methyl methacrylate, 10 parts by weight of styrene, and 0.8 parts by weight of azobisisobutyronitrile to obtain a mixed solution a, for use;

[0028] 5 parts by weight of dodecafluoroheptyl acrylate, 3.5 parts by weight of trifluorooctyl acrylate, 5 parts by weight of vinyltrimethoxysilane, 3.5 parts by weight of acrylic acid, 4.4 parts by weight of hydroxyethyl acrylate, 2 parts by weight of methacrylic acid Methyl ester, 11.4 parts by weight of isooctyl acrylate, and 0.8 parts by weight of azobisisobutyronitrile were mixed uniformly to obtain mixed liquid b, which was set aside;

[0029] 0.4 parts by weight of azobisisobutyronitrile and 2 parts by weight of methyl isob...

Embodiment 2

[0035]1) The formula of the acrylic modified emulsion with high salt spray and high weather resistance with core-shell structure:

[0036]

[0037] Mix 5 parts by weight of perchlorethylene, 1.5 parts by weight of acrylic acid, 2.2 parts by weight of hydroxyethyl acrylate, 5 parts by weight of methyl methacrylate, 8.6 parts by weight of styrene, and 0.6 parts by weight of azobisisobutyronitrile to obtain a mixed solution a, for use;

[0038] 3.5 parts by weight of dodecafluoroheptyl acrylate, 2.5 parts by weight of trifluorooctyl acrylate, 4 parts by weight of vinyltrimethoxysilane, 3 parts by weight of acrylic acid, 4.1 parts by weight of hydroxyethyl acrylate, 1.5 parts by weight of methacrylic acid Methyl ester, 9.7 parts by weight of isooctyl acrylate, and 0.6 parts by weight of azobisisobutyronitrile were mixed uniformly to obtain mixed solution b, which was set aside;

[0039] Mix 0.3 parts by weight of azobisisobutyronitrile and 3 parts by weight of methyl isobutyl ...

Embodiment 3

[0046] 1) The formula of the acrylic modified emulsion with high salt spray and high weather resistance with core-shell structure:

[0047]

[0048]

[0049] Mix 4 parts by weight of perchlorethylene, 1 part by weight of acrylic acid, 2 parts by weight of hydroxyethyl acrylate, 4.5 parts by weight of methyl methacrylate, 7.2 parts by weight of styrene, and 0.4 parts by weight of azobisisobutyronitrile to obtain a mixed solution a, for use;

[0050] 2 parts by weight of dodecafluoroheptyl acrylate, 1.5 parts by weight of trifluorooctyl acrylate, 3 parts by weight of vinyltrimethoxysilane, 2.5 parts by weight of acrylic acid, 3.8 parts by weight of hydroxyethyl acrylate, 1 part by weight of methacrylic acid Methyl ester, 8 parts by weight of isooctyl acrylate, and 0.4 parts by weight of azobisisobutyronitrile are mixed uniformly to obtain mixed liquid b, which is set aside;

[0051] Mix 0.2 parts by weight of azobisisobutyronitrile and 4 parts by weight of methyl isobutyl...

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Abstract

The invention relates to a water-based coating with high salt spray and high weather resistance and a preparation method thereof, mainly comprising acrylic modified emulsion, and the acrylic modified emulsion is composed of isobutanol, ethylene glycol monobutyl ether, methyl isobutyl ketone , perchloroethylene, dodecafluoroheptyl acrylate, trifluorooctyl acrylate, vinyltrimethoxysilane, acrylic acid, methyl methacrylate, hydroxyethyl acrylate, styrene, isooctyl acrylate, azobis Composed of isobutyronitrile, methyl monoethanolamine, and deionized water. The coating of the present invention is a very excellent bottom-surface-integrated coating, suitable for metal workpieces, and dried at room temperature after coating. The coating has a smooth and bright appearance, good leveling, good mechanical properties, and very excellent weather resistance After 2500 hours of QUV aging test, the loss rate is ≤15%, ΔE≤1.5, and it also has good corrosion resistance, the salt spray resistance reaches 1000 hours, and the unidirectional corrosion width is ≤2mm.

Description

[technical field] [0001] The invention belongs to the technical field of water-based paints and preparation methods, and relates to a water-based paint with high salt spray and high weather resistance and a preparation method thereof. [Background technique] [0002] Corrosion of materials is a serious problem worldwide. Corrosion not only consumes precious wealth, but also destroys the normal operation of many activities such as production and life. The annual loss caused by metal corrosion in my country is as high as tens of billions of RMB, accounting for about 4% of the gross national value. With the increase of metal consumption, the loss will continue to increase. Such an astonishing loss stimulates the development of anti-corrosion coatings. At the same time, the coating film is prone to embrittlement, chalking, discoloration, loss of light, peeling and other problems when exposed to outdoor environmental conditions. The coating film needs to have high weather resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D125/14C09D5/08C08F220/18C08F212/08C08F220/28C08F220/14C08F220/06C08F230/08C08F220/22C08F214/04
Inventor 孔凡桃刘薇薇赵颖周贤林海莲张建中李磨
Owner HAOLISEN COATING SHANGHAI
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