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Heavy duty coating capable of curing on wet surface

A heavy-duty anti-corrosion and coating technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of difficult application of epoxy coatings, impossible to achieve complete drying, etc., and achieve excellent anti-corrosion performance and excellent physical mechanics. performance effect

Inactive Publication Date: 2009-07-15
CCCC FOURTH HARBOR ENG CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of tidal fluctuations and sea wave splashing, the surface of the steel structure or concrete structure in the tidal range area and splash area is often in a wet state under marine environmental conditions, and it is impossible to achieve complete drying. It is difficult for general-purpose epoxy coatings to Effective application under these conditions
So far, there is no product with excellent and stable wet surface application performance and anti-corrosion effect.

Method used

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  • Heavy duty coating capable of curing on wet surface
  • Heavy duty coating capable of curing on wet surface
  • Heavy duty coating capable of curing on wet surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The formula is shown in Table 1.1.

[0010] Table 1.1 Components used in wet surface curing heavy-duty anti-corrosion coatings

[0011]

[0012] The main paint slurry is stirred and dispersed with a JB-180-D strong mixer, ground to the required fineness with a SG-65 three-roller grinder, filtered and packaged.

[0013] Tests and Results

[0014] The test piece used in the test for measuring the adhesion between paint and steel is a steel test piece of 70×150×3mm. Before the test, the test piece was pickled to remove rust, washed and dried, then polished with sandpaper, and painted with acetone after wiping off the grease.

[0015] The concrete specimen used to measure the adhesion between paint and concrete is a 150×150×150mm specimen of strength grade C60. It is used after 60 days of curing, and the surface oil and floating grout are removed before coating.

[0016] Get paint component I and component II in embodiment 1 and start to smear after mixing evenly 10 m...

Embodiment 2

[0028] The formula is shown in Table 1.2.

[0029] Table 1.2 Components used in wet surface curing heavy-duty coatings

[0030]

[0031] The preparation method is the same as in Example 1.

Embodiment 3

[0033] The formula is shown in Table 1.3.

[0034] Table 1.3 Components used in wet surface curing heavy-duty anti-corrosion coatings

[0035]

[0036] The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention discloses a wet surface curing heavy-duty anti-corrosion coating, which is composed of component I and component II, wherein component I at least includes epoxy resin, active filler, thickener and body filler; component II includes at least Modified amine curing agent and phenalk imine curing agent. In the present invention, component I and component II are mixed and used, which can firmly adhere to the surface of steel and concrete with moisture and water, and the initial coating can withstand the impact of tide water and sea waves before curing without dissolving the discrete layer, and can It solidifies in water, and finally forms a coating film with excellent physical and mechanical properties and anti-corrosion properties. The bonding strength on wet and water-laden steel surfaces and concrete surfaces is similar to that on dry surfaces.

Description

technical field [0001] The invention relates to a paint formulation and production technology applied on wet surfaces. Background technique [0002] Marine structures such as port terminals, offshore long-span bridges, offshore oil and gas drilling platforms, and large offshore mooring facilities are often exposed to the harsh corrosive environment of the ocean, so it is particularly important to take anti-corrosion measures for them. Paint coating is an effective anti-corrosion measure commonly used. Epoxy coatings are developing very rapidly due to their excellent bonding ability and mechanical properties. However, due to the influence of tidal fluctuations and sea wave splashing, the surface of the steel structure or concrete structure in the tidal range area and splash area is often in a wet state under marine environmental conditions, and it is impossible to achieve complete drying. It is difficult for general-purpose epoxy coatings to Effective application takes place...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
Inventor 张举连赵善芬曾志文王胜年胡国栋吴杲廖荣国
Owner CCCC FOURTH HARBOR ENG CO LTD