Two-component waterborne top coating for outdoor pipeline and preparation method thereof

A water-based topcoat, two-component technology, applied in the direction of anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor corrosion resistance and weather resistance, toxic organic volatiles, etc., to improve adhesion and reduce Environmental pollution, low odor effect

Inactive Publication Date: 2019-03-29
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems that solvent-based paints currently on the market contain a large amount of toxic organic volatiles, and water-based paints have poor corrosion resistance and weather resistance, the present invention provides a two-component water-based topcoat for outdoor pipelines

Method used

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  • Two-component waterborne top coating for outdoor pipeline and preparation method thereof
  • Two-component waterborne top coating for outdoor pipeline and preparation method thereof
  • Two-component waterborne top coating for outdoor pipeline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The embodiment of the present invention provides a two-component water-based topcoat for outdoor pipelines and a preparation method thereof, comprising the following raw materials in parts by weight:

[0029] A component:

[0030]

[0031]

[0032] B component:

[0033] 54.8 parts of self-emulsifying polyisocyanate;

[0034] 27.4 parts of propylene glycol methyl ether acetate.

[0035] Among them, the water-based polyurethane dispersion is A2033, the defoamer is BYK024, the substrate wetting agent is BYK-346, the anti-settling agent is LT (3%), the thickener is 0620, and the anti-flash rust agent is ED-617F. The rheological agent is 12W, the silane coupling agent is kh560, the leveling agent is Tego-100, and the self-emulsifying polyisocyanate is N3900.

[0036] The preparation method of the above-mentioned two-component water-based topcoat for outdoor pipelines is as follows:

[0037] Step a, according to the formula of two-component water-based topcoat for o...

Embodiment 2

[0043] The embodiment of the present invention provides a two-component water-based topcoat for outdoor pipelines and a preparation method thereof, comprising the following raw materials in parts by weight:

[0044] A component:

[0045]

[0046]

[0047] B component:

[0048] 67.55 parts of self-emulsifying polyisocyanate;

[0049] Propylene glycol methyl ether acetate 28.95 parts.

[0050] Among them, the waterborne polyurethane dispersion is GTR6014, the defoamer is 902W, the substrate wetting agent is BYK-346, the anti-settling agent is LT (3%), the associative polyurethane thickener is 0620, and the anti-flash rust agent is ED-617F, the rheology agent is 12W, the silane coupling agent is kh560, the leveling agent is Tego-100, and the self-emulsifying polyisocyanate is N3900.

[0051] The preparation method of the above-mentioned two-component water-based topcoat for outdoor pipelines is as follows:

[0052]Step a, according to the formula of two-component water-...

Embodiment 3

[0058] The embodiment of the present invention provides a two-component water-based topcoat for outdoor pipelines and a preparation method thereof, comprising the following raw materials in parts by weight:

[0059] A component:

[0060]

[0061] B component:

[0062] 80.1 parts of self-emulsifying polyisocyanate;

[0063] 30.4 parts of propylene glycol methyl ether acetate.

[0064] Among them, the water-based polyurethane dispersion is GTR6014, the defoamer is 902W, the substrate wetting agent is BYK-346, the anti-settling agent is LT (3%), the associative polyurethane thickener is 0620, and the anti-flash rust agent is ED-617F, the rheology agent is 12W, the silane coupling agent is kh560, the leveling agent is TW336, and the self-emulsifying polyisocyanate is N3900.

[0065] The preparation method of the above-mentioned two-component water-based topcoat for outdoor pipelines is as follows:

[0066] Step a, according to the formula of two-component water-based topcoa...

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PUM

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Abstract

The invention relates to two-component waterborne top coating for an outdoor pipeline and a preparation method thereof. The top coating consists of a component A and a component B, and comprises the following raw materials: waterborne polyurethane dispersion, a co-solvent, deionized water, a neutralization agent, a dispersant, a defoamer, a substrate wetting agent, an anti-settling agent, a thickener, an anti-flash rust agent, a rheological agent, a silane coupling agent, a leveling agent, rutile titanium dioxide, carbon black, and trimeric aluminum phosphate. The top coating has high corrosion resistance, weather resistance, abrasion resistance, water resistance and acid and alkali resistance, can fully meet requirements of outdoor pipeline coating and is environmentally friendly.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a two-component water-based topcoat for outdoor pipelines and a preparation method thereof. Background technique [0002] Metal corrosion is a common phenomenon in daily life. It not only affects the appearance of the metal, but also causes pollution to the natural gas, water and other substances transported in the pipeline. At present, the anti-corrosion coatings used for domestic metal pipelines are generally solvent-based alkyd system coatings, epoxy ester system coatings or epoxy system coatings. Solvent-based coatings contain a large amount of toxic organic volatiles, which will slowly volatilize when applied outdoors, posing a threat to the atmospheric environment and human health. Water-based coatings use water instead of organic solvents, which greatly reduces the volatilization of organic solvents during production and construction, which is an important development direction fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08
CPCC09D175/04C09D5/08
Inventor 张鑫郑齐董立志胡中源
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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