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Anti-corrosion paint, application thereof and pipeline coating

An anti-corrosion coating and coating technology, applied in the field of pipeline coating and anti-corrosion coating, can solve the problems of poor resistance to high temperature cathodic disbondment, peeling and patching peeling of polyurea coatings, so as to solve the problems of peeling and patching peeling, and improve the chain. Long, increase the effect of heat-resistant temperature

Active Publication Date: 2015-12-30
北京碧海云智新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a kind of anticorrosion coating, its application and pipeline coating, to solve the problems of peeling and joint peeling in the application of polyethylene anticorrosion layer of existing pipelines and the problem of poor high temperature cathodic peeling resistance of polyurea coating question

Method used

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  • Anti-corrosion paint, application thereof and pipeline coating
  • Anti-corrosion paint, application thereof and pipeline coating
  • Anti-corrosion paint, application thereof and pipeline coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The polyether amine of 50g, the first modified polyaspartic acid of 240g, the second modified polyaspartic acid of 50g, the talcum powder of 300g, the rutile titanium dioxide of 150g, the silicon micropowder of 300g, the fluid of 5g Variable aid and 5 g of defoamer were dispersed at high speed according to the above preparation method to obtain the first component. Wherein, the first modified polyaspartic acid is BAYERNH1420, the polyetheramine is D400, and the second modified polyaspartic acid is BSS-XP type silicone polyaspartic acid ester.

[0071] With DESMODURN3300 as the second component, the weight ratio of the first component to the second component is 3:1 for spraying. The properties of the anti-corrosion coating prepared in this example are shown in Table 1.

[0072] Table 1

[0073]

Embodiment 2

[0075]The polyether amine of 60g, the first modified polyaspartic acid of 240g, the second modified polyaspartic acid of 100g, the talcum powder of 250g, the rutile titanium dioxide of 110g, the silicon micropowder of 230g, the fluid of 5g The variable aid and 5 g of defoamer were dispersed at high speed according to the above preparation method to obtain the first component. Wherein, the first modified polyaspartic acid is BAYERNH1420, the polyetheramine is D400, and the second modified polyaspartic acid is BSS-XP type silicone polyaspartic acid ester.

[0076] With DESMODURN3300 as the second component, the weight ratio of the first component to the second component is 4:1 for spraying. The properties of the anti-corrosion coating prepared in this example are shown in Table 2.

[0077] Table 2

[0078]

[0079]

Embodiment 3

[0081] With the polyetheramine of 100g, the first modified polyaspartic acid ester of 300g, the second modified polyaspartic acid ester of 100g, the talcum powder of 200g, the rutile titanium dioxide of 100g, the silicon micropowder of 200g, 5g The rheological additive and 5g of defoamer are dispersed at high speed according to the above preparation method to obtain the first component; wherein, the first modified polyaspartate is BAYERNH1420, polyetheramine is D400, and the second modified polytianmen Partic acid is BSS-XP type silicone polyaspartic acid ester.

[0082] With isophorone diisocyanate as the second component, the weight ratio of the first component to the second component is 5:1 for spraying. The properties of the anti-corrosion coating prepared in this example are shown in Table 3.

[0083] table 3

[0084]

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Abstract

The invention provides anti-corrosion paint, an application thereof and a pipeline coating. The anti-corrosion paint comprises a first component and a second component, wherein the first component comprises polyether amine, first modified polyaspartic acid ester and second modified polyaspartic acid ester, and the second component comprises isocyanate and / or a prepolymer thereof. Compared with traditional polyaspartic acid ester urea paint, by means of the added polyether amine component, ether linkage with good flexibility can be introduced in a final cured resin molecular chain, and the chain length and the low-temperature toughness of the cured resin molecular chain are improved; by means of added second modified polyaspartic acid ester, increase of the heat-resistant temperature as well as improvement of weather resistance, smoothness and scratching resistance of the coating is facilitated. When the anti-corrosion paint is matched with a fusion bonded epoxy powder bottom coating, the problems of stripping and joint coating stripping in application of a polyethylene anti-corrosion layer of a conventional pipeline as well as poor high temperature cathodic stripping resistance of a polyuria coating can be solved very well.

Description

technical field [0001] The invention relates to the field of coating production, in particular to an anti-corrosion coating, its application and pipeline coating. Background technique [0002] Using pipelines to transport oil and gas resources over long distances is considered an economical and reliable transportation method, which has incomparable advantages over transportation methods such as automobiles, trains, and ships. In order to ensure the long-term safe operation of the pipeline, it is a necessary and feasible solution to protect it by coating and cathodic protection technology. From the perspective of the development history of pipeline coatings, pipeline coatings have successively experienced petroleum asphalt, coal tar enamel paint, polyethylene tape, fusion bonded epoxy powder (FBE) coating and three-layer polyethylene (PE)-based coatings. Five stages of coating. Among them, fusion-bonded epoxy powder and three-layer polyethylene coating are the most widely u...

Claims

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Application Information

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IPC IPC(8): C09D175/02C09D5/08C09D7/12C09D163/00C09D5/03F16L58/10
Inventor 刘小平李依璇赵金庆刘永辉樊艳达何永敬安雷刚
Owner 北京碧海云智新材料技术有限公司
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