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Bi-component waterborne epoxy anticorrosive paint for steel structure

A water-based epoxy and anti-corrosion coating technology, used in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problem of salt spray resistance, impact resistance, drying speed, adhesion and solvent resistance. The service life of the steel structure and the increase of the maintenance cost of the power grid can reduce the maintenance cost, increase the service life and improve the salt spray resistance.

Inactive Publication Date: 2016-01-20
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing two-component water-based epoxy anti-corrosion coatings cannot achieve the best results in salt spray resistance, impact resistance, drying speed, adhesion, and solvent resistance, which affects the service life of the steel structure and increases the maintenance cost of the power grid.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A two-component water-based epoxy anti-corrosion coating for steel structures, comprising A component and B component, A component includes the following components in parts by weight: 150 parts of 8537-WY-60 water-based epoxy curing agent, 250 parts of deionized water 160 parts of iron red, 65 parts of talcum powder, 150 parts of precipitated barium sulfate, 20 parts of low-lead zinc phosphate, 30 parts of aluminum tripolyphosphate, 20 parts of nano silicon dioxide, 5 parts of alcohol ether additives, thickening fluid 5 parts of variable agent, 5 parts of flash corrosion inhibitor, 2 parts of leveling agent;

[0017] Component B includes: 150 parts of epoxy modified high temperature resistant phenolic resin, 30 parts of reactive diluent;

[0018] The A component and the B component are mixed and used according to the weight ratio A:B=5:1.

[0019] The mass fraction ratio of the 8537-WY-60 water-based epoxy curing agent to the epoxy-modified high temperature resistant ...

Embodiment 2

[0022] A two-component water-based epoxy anti-corrosion coating for steel structures, including A component and B component, A component includes the following components in parts by weight: 200 parts of 8537-WY-60 water-based epoxy curing agent, 280 parts of deionized water 160 parts of iron red, 65 parts of talcum powder, 120 parts of precipitated barium sulfate, 25 parts of low-lead zinc phosphate, 25 parts of aluminum tripolyphosphate, 20 parts of nano silicon dioxide, 6 parts of alcohol ether additives, thickening fluid 6 parts of variable agent, 6 parts of flash corrosion inhibitor, 2 parts of leveling agent;

[0023] Component B includes: 180 parts of epoxy modified high temperature resistant phenolic resin, 50 parts of reactive diluent;

[0024] The A component and the B component are mixed and used according to the weight ratio A:B=4:1.

[0025] The mass fraction ratio of the 8537-WY-60 water-based epoxy curing agent to the epoxy-modified high temperature resistant p...

Embodiment 3

[0028] A two-component water-based epoxy anti-corrosion coating for steel structures, comprising A component and B component, A component includes the following components in parts by weight: 225 parts of 8537-WY-60 water-based epoxy curing agent, 220 parts of deionized water 160 parts of iron red, 60 parts of talcum powder, 120 parts of precipitated barium sulfate, 30 parts of low-lead zinc phosphate, 30 parts of aluminum tripolyphosphate, 20 parts of nano silicon dioxide, 8 parts of alcohol ether additives, thickened flow 8 parts of variable agent, 8 parts of flash corrosion inhibitor, 3 parts of leveling agent;

[0029] Component B includes: 250 parts of epoxy modified high temperature resistant phenolic resin, 85 parts of reactive diluent;

[0030] The A component and the B component are mixed and used according to the weight ratio A:B=8:3.

[0031] The mass fraction ratio of the 8537-WY-60 water-based epoxy curing agent to the epoxy-modified high temperature resistant ph...

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Abstract

The invention discloses bi-component waterborne epoxy anticorrosive paint for a steel structure, and belongs to the field of anticorrosive paint. The paint comprises a first component and a second component; the first component is prepared from 8537-WY-60 waterborne epoxy curing agents, deionized water, iron oxide red, talcum powder, precipitated barium sulphate, low-lead zinc phosphate, aluminium triphosphate, nano-silica, alcohol ether auxiliaries, thickener rheology agents, flash rusting inhibitors and levelling agents; the second component is prepared from epoxy-modified high-temperature-resistant phenolic resin and reactive diluents; the first component and the second component are mixed and used according to the weight ratio of 4:0.8-1.5. According to the bi-component waterborne epoxy anticorrosive paint for the steel structure, by optimizing and researching a formula of the bi-component waterborne epoxy anticorrosive paint, the properties of the bi-component waterborne epoxy anticorrosive paint are equivalent to or close to those of solvent type epoxy anticorrosive paint on the properties such as the physical and chemical properties, the construction adaptability and the matching properties, and the environmental protection requirements can be met.

Description

technical field [0001] The invention belongs to an anti-corrosion coating, in particular to a two-component water-based epoxy anti-corrosion coating for steel structures. Background technique [0002] Most of the traditional anti-corrosion primers for power grid fittings are solvent-based coatings, in which the content of organic solvents generally reaches 20% to 50% of the finished coating. When in use, 5% to 20% solvent is often added to dilute it for the convenience of construction. These solvents will be volatilized during the coating construction process, causing waste of resources, environmental pollution, endangering the health of construction and users, and generating fire hazards. In recent years, with the country's emphasis on environmental protection and people's increasing awareness of environmental protection, water-based coatings have become an important direction and research hotspot in the development of coatings. Epoxy resin is widely used in coating produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/04C09D5/08C09D7/12
Inventor 刘娜曹军林冰陈晓民刘文生
Owner STATE GRID SHANDONG ELECTRIC POWER
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