Underwater coating anti-pollution and anti-corrosion epoxy coating and preparation method thereof

An epoxy coating and anti-fouling technology, applied in anti-corrosion coatings, epoxy resin coatings, anti-fouling/underwater coatings, etc. The effect of focusing, prolonging the cross-linking time, and good elasticity

Inactive Publication Date: 2013-09-11
CHANGSHA SHENGKANG HIGH POLYMER MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many kinds of ordinary epoxy resin curing agents on the market, but epoxy coatings prepared with ordinary epoxy resin curing agents will react with carbon dioxide in water or air to form carbonates when they encounter water or a humid environment. , causing the bonding layer to be isolated by carbonates, resulting in extremely low adhesion of the coating, easy to fall off, and poor anti-corrosion ability
[0009] At the same time, there is no report on the epoxy anti-corrosion coating that can be painted underwater, has anti-fouling and anti-corrosion functions and maintains good adhesion.

Method used

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  • Underwater coating anti-pollution and anti-corrosion epoxy coating and preparation method thereof
  • Underwater coating anti-pollution and anti-corrosion epoxy coating and preparation method thereof
  • Underwater coating anti-pollution and anti-corrosion epoxy coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0046] Example 1: White paint (for metal structures or concrete structures)

[0047] The anti-fouling and anti-corrosion epoxy coating for underwater coating is composed of A component and B component, and the weight ratio of the A component to the B component is 4:1;

[0048] The A component includes the following components by weight:

[0049]

[0050] The B component includes the following components by weight:

[0051] 25 parts of curing agent 1085B, 0.75 parts of coupling agent KH5500, 2.5 parts of white carbon black.

[0052] The preparation method of the above-mentioned underwater coating antifouling and anticorrosion epoxy coating comprises the steps:

[0053] (1) Preparation of component A: Mix epoxy resin epoxy resin E-44, diluent KB-62, wetting agent BYK-307, defoamer BYK-A530 and leveling agent BYK-361N according to the stated ratio Pour into the mixing and dispersing kettle in turn, stir evenly at a speed of 600 rpm; add antifouling agent Mocide CD-30, stir ...

Embodiment 2

[0058] Example 2: brownish red (for metal structures)

[0059] The anti-fouling and anti-corrosion epoxy coating for underwater coating is composed of A component and B component, and the weight ratio of the A component to the B component is 4:1;

[0060] The A component includes the following components by weight:

[0061]

[0062] The B component includes the following components by weight:

[0063] 12 parts of curing agent 1085B, 13 parts of curing agent 1085C, 0.75 parts of coupling agent KH5500, 1.5 parts of white carbon black.

[0064] The preparation method of the above-mentioned underwater coating antifouling and anticorrosion epoxy coating comprises the steps:

[0065] (1) Preparation of component A: Mix epoxy resin epoxy resin E-44, diluent KB-62, wetting agent BYK-P104S, defoamer BYK-A530 and leveling agent BYK-361N according to the ratio Pour into the mixing and dispersing kettle in turn, stir evenly at a speed of 600 rpm; add antifouling agent Mocide CD-30, ...

Embodiment 3

[0070] Example 3: Yellow (for metal structures)

[0071] The anti-fouling and anti-corrosion epoxy coating for underwater coating is composed of A component and B component, and the weight ratio of the A component to the B component is 4:1;

[0072] The A component includes the following components by weight:

[0073]

[0074] The B component includes the following components by weight:

[0075] 25 parts of curing agent 1085C, 0.75 parts of coupling agent KH550, 2.5 parts of white carbon black.

[0076] The preparation method of the above-mentioned underwater coating antifouling and anticorrosion epoxy coating comprises the steps:

[0077] (1) Preparation of component A: Mix epoxy resin epoxy resin E-44, diluent KB-62, wetting agent BYK-P104S, defoamer BYK-A530 and leveling agent BYK-361N according to the ratio Pour into the mixing and dispersing kettle in turn, and stir evenly at a speed of 600 rpm; add antifouling agent Mocide88, and stir at a speed of 300 rpm for 20 m...

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Abstract

The invention discloses an underwater coating anti-pollution and anti-corrosion epoxy coating and a preparation method thereof. The underwater anti-pollution and anti-corrosion epoxy coating provided by the invention can solve the difficult problem that an amine type curing agent which is matched with the epoxy coating used at normal temperature for underwater coating reacts with water and carbon dioxide in the water or air to generate carbonates, so that a bonded layer is isolated by the carbonates, the adhesion is greatly reduced, the bonding force is reduced by above 50% in comparison with a dry environment, a coat is easy to shed, and the anti-corrosion capability is poor. The anti-pollution and anti-corrosion coating disclosed by the invention has the advantages of good underwater coating anti-corrosion performance, strong adhesion, great impact resistance and good flexibility, and can effectively prevent the problems that a paint film is damaged, and the damages and corrosion of a steel plate and concrete are accelerated due to the parasitic attachment of marine organisms.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-fouling and anti-corrosion epoxy coating for underwater coating and a preparation method thereof. Background technique [0002] With the continuous development of the economy, there are more and more underwater processes. With the continuous development of offshore oil, port terminals, hydroelectric power stations and shipbuilding industries, dikes, reservoirs, sluices, underwater pipelines and other projects, as well as mines, tunnels, baths, Humid places such as hot springs, swimming pools, water storage tanks, water storage tanks, and underground warehouses all need heavy-duty anti-corrosion coatings cured in water. In addition, there are more than 18,000 types of organisms in various sea areas around the world that are attached animals, and more than 600 types are attached plants. After marine organisms are attached to the bottom of the ship, the resistance will be i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/08C09D5/16C09D7/12C08G59/50
Inventor 范明费岳峰
Owner CHANGSHA SHENGKANG HIGH POLYMER MATERIAL TECH
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