Water-based two-component light-colored anti-static anti-corrosion paint in tank and preparation method thereof

An anti-corrosion coating, two-component technology, used in anti-corrosion coatings, conductive coatings, epoxy resin coatings, etc., can solve the problems of galvanic corrosion, affecting oil quality, and high cost.

Active Publication Date: 2017-01-04
GUANGZHOU JOINTAS CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon-based conductive fillers have good electrical conductivity, but carbon black is easily absorbed and stored in the paint film as the solvent volatilizes
There is a potential difference between carbon black and steel, which is easy to cause galvanic corrosion on the steel plate, and the carbon filler will seep into the oil and affect the quality of the oil
Therefore, carbon-based electrostatic conductive coatings have problems such as poor adhesion and oil resistance, and ugly colors.
A variety of composite conductive coatings can be prepared by using metal or metal oxide-based conductive fillers, but their high cost limits their popularization and application.
In addition, solvent-based coating products are flammable and explosive, and there are great safety hazards in the construction and application process of petrochemical and other enterprises, and they pollute the environment and cause harm to the construction personnel.

Method used

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  • Water-based two-component light-colored anti-static anti-corrosion paint in tank and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A water-based two-component light-colored anti-static anti-corrosion coating in a tank. Its components and mass percentages are as follows: 13.2% of tap water, 41% of water-based epoxy emulsion, 11% of water-based epoxy curing agent, 16.8% of light-colored conductive filler, 8% composite iron-titanium powder, 4% rutile titanium dioxide, 3% talc powder, 0.2% anti-settling agent, 0.2% wetting and dispersing agent A, 0.3% wetting and dispersing agent B, 1% film-forming aid, Anti-flash rust agent 0.1%, thickener 0.5%, defoamer A 0.2%, defoamer B 0.2%, leveling agent 0.3%. Its preparation method is as follows:

[0032] 1) Under the stirring condition of 400r / min, add 7.5% tap water, 0.2% wetting and dispersing agent A, 0.3% wetting Dispersant B, 0.5% film-forming aid, 0.2% defoamer A, stirring for 5 minutes; under stirring at 600 r / min, add 0.2% anti-settling agent, 8% composite iron-titanium powder, 4% rutile titanium dioxide , 3% talcum powder, and then disperse at a hig...

Embodiment 2

[0037] A water-based two-component light-colored anti-static anti-corrosion coating in a tank, its components and mass percentages are as follows: 20% of tap water, 30% of water-based epoxy emulsion, 7% of water-based epoxy curing agent, 18% of light-colored conductive filler, Composite iron-titanium powder 12.4%, rutile titanium dioxide 1%, barite powder 7%, anti-sedimentation agent 0.2%, wetting and dispersing agent A0.3%, wetting and dispersing agent B0.2%, film-forming aid 1.5% , Anti-flash rust agent 0.4%, thickener 1.2%, defoamer A0.3%, defoamer B0.3%, leveling agent 0.2%. Its preparation method is as follows:

[0038]1) Under the stirring condition of 100r / min, add 10.3% tap water, 0.3% wetting and dispersing agent A, 0.2% wetting Dispersant B, 0.3% defoamer A, 0.75% film-forming aid, stirred for 5 minutes; under stirring at 800r / min, add 0.2% anti-settling agent, 12.4% anti-rust pigment, 1% titanium dioxide, 7% weight Spar powder, then at a speed of 4500 r / min, dispe...

Embodiment 3

[0043] A water-based two-component light-colored anti-static anti-corrosion paint in a tank, its components and mass percentages are as follows: 17% of tap water, 38% of water-based epoxy emulsion, 10% of water-based epoxy curing agent, 9% of light-colored conductive filler, 15% flaky mica powder, 1.5% rutile titanium dioxide, 6% barite powder, 0.1% anti-sedimentation agent, 0.3% wetting and dispersing agent A, 0.2% wetting and dispersing agent B, 1% film-forming aid , Anti-flash rust agent 0.6%, thickener 1%, defoamer A0.1%, defoamer B0.1%, leveling agent 0.1%. Its preparation method is as follows:

[0044] 1) Under the stirring condition of 300r / min, add 10.3% tap water, 0.3% wetting and dispersing agent A, 0.2% wetting Dispersant B, 0.1% defoamer A, 0.5% film-forming aid, stirring for 5 minutes; under stirring at 700 r / min, add 0.1% anti-settling agent, 15% anti-rust pigment, 1.5% titanium dioxide, 6% Barite powder, then at a speed of 4800r / min, disperse at a high speed f...

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Abstract

The invention discloses a water-based two-component light-colored anti-static anti-corrosion paint in a tank. The composition of the water-based two-component light-colored anti-static anti-static paint in a tank is as follows: 8-20% of tap water, water-based epoxy Emulsion 30-45%, water-based epoxy curing agent 7-15%, anti-rust pigment 8-20%, white pigment 1-7%, white filler 1-7%, light-colored conductive filler 8-18%, anti-settling agent 0.1-0.3%, wetting and dispersing agent A 0.1-0.4%, wetting and dispersing agent B 0.1-0.3%, film-forming aid 0.8-2%, defoamer 0.2-0.6%, leveling agent 0.1-0.3%, Anti-flash rust agent 0.1-0.6%, thickener 0.5-2%. The invention uses a two-component water-based epoxy resin and a water-based curing agent as the main film-forming substances, and the chemical cross-linking reaction of the two components ensures that the coating has high cross-linking density and protective performance.

Description

technical field [0001] The invention relates to a water-based two-component light-colored anti-static anti-corrosion coating in a tank and a preparation method thereof, belonging to the technical field of anti-static anti-corrosion coatings. Background technique [0002] In order to ensure the safe use of the oil storage tank, while considering the anti-corrosion protection inside the oil tank, it is also necessary to suppress the generation of static charge and promote the leakage of charge, and eliminate the accumulation of static charge. Therefore, the inner wall of the oil tank should use anti-static anti-corrosion paint. According to the national standard GB50393-2008 "Technical Specifications for Anti-corrosion Engineering of Steel Petroleum Storage Tanks", the surface resistivity of the anti-static anti-corrosion coating in the tank should be at 10 8 ~10 11 in the range of Ω. The solvent-based electrostatic conductive coatings mainly based on carbon series have been...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D7/12C09D5/08C09D5/24
Inventor 韩建宇陈中华余飞
Owner GUANGZHOU JOINTAS CHEM
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