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Water-based derusting anticorrosion paint

A technology for anti-corrosion and coating with rust, applied in the direction of anti-corrosion coatings, coatings, latex paints, etc., can solve the problems of inability to control the conversion degree of rust reaction, difficulty in grasping the relationship between the thickness of the rust layer, and the inability to be widely used, etc., to achieve improvement Excellent construction environment, excellent rust removal ability, and improved inertia

Inactive Publication Date: 2007-03-07
赵鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the common disadvantage of this kind of rust coating is that it is difficult to grasp the relationship between the thickness of the rust layer and the amount of coating, that is, it is impossible to control the conversion degree of the rust reaction.
If the acid content is low, the conversion of rust will not be complete. If the acid content is high, acidic substances will remain in the paint film, which will corrode the steel and cannot be used as a real primer. It can only be used as a surface treatment agent. It must be repainted during construction. Only by painting acid-resistant primer and topcoat can it play an anti-corrosion effect, so it cannot be widely used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. Conversion coating formula (parts by weight)

[0049] Formula 1: CRF resin 22, phosphoric acid (85%) 370, RC dispersant 11, LZ rust inhibitor 3;

[0050] Formula 2: CRF resin 22, phosphoric acid (85%) 370, RC dispersant 11, LZ rust inhibitor 3, triethanolamine 6, formaldehyde (35%) 27, alcohol (>95%) 60, urea 6, water 40, Additives (JX adhesion promoter (50%), JP rheology modifier (50%)) 2;

[0051] Formula 3: CRF resin 20, phosphoric acid (85%) 350, RC dispersant 10, LZ rust inhibitor 2, triethanolamine 5, formaldehyde (37%) 25, alcohol (>95%) 60, urea 6, water 40, Additives (JX adhesion promoter (50%), JP rheology modifier (50%)) 1;

[0052] Formula 4: CRF resin 25, phosphoric acid (85%) 380, RC dispersant 12, LZ rust inhibitor 3, triethanolamine 8, formaldehyde (35%) 30, alcohol (>95%) 80, urea 8, water 20, Additives (JX adhesion promoter (50%), JP rheology modifier (50%)) 3;

[0053] Wherein, the concentrations of phosphoric acid and formaldehyde are both in ...

Embodiment 2

[0082] The electrostatic conduction properties of the paint film formed by the conversion layer (formula 2) and the anti-corrosion layer (formula 3) in Example 1 were tested. The result shows that this paint film has electrostatic conduction property, and the primer surface resistance is 10 6 Ω, the volume resistivity is 10 6 Ω.M, in line with GB13348 Petroleum Static Safety Regulations and GB6950 Petroleum Can Static Conductive Coating Technical Specifications and other relevant domestic and foreign regulations (see Table 5), and this product has proved its reliability and safety in actual experiments.

[0083] Country names

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Abstract

The invention discloses a water-based rust preservation paint, which consists of conversing layer paint and preservation layer paint, wherein the conversing layer paint contains 20-25% modified epoxy acrylic resin, 350-380% phosphorus acid, 10-12% disperser and 2-3% phytic acid resin; the preservation paint consists of 40-50% acrylic resin and 40-60% water.

Description

technical field [0001] The invention relates to a water-based anticorrosion coating with rust. Background technique [0002] The traditional anti-corrosion method of steel generally adopts the method of rust removal and anti-corrosion, and performs electrochemical anti-corrosion and isolation anti-corrosion on steel, which has disadvantages such as serious pollution and high construction intensity. Although anti-corrosion with rust also adopts the principles of electrochemical anti-corrosion and isolation anti-corrosion, it is very different from traditional rust removal and anti-corrosion in terms of product characteristics and construction technology, as shown in Table 1: [0003] difference item Traditional rust removal and anti-corrosion Anti-corrosion with rust Treatment of rust layer removed, released into the environment A large part is converted into a paint film Construction requirements High-level rust removal, general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/08C09D5/02
Inventor 李东林李玉荣赵鹏曹姗
Owner 赵鹏
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