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One-component epoxy aluminum-rich coating for steel structure, and preparation method thereof

A one-component, steel structure technology, applied in the field of coatings, can solve the problems of slow reaction and strict ratio of two-component epoxy, and achieve the effect of excellent adhesion and easy use.

Inactive Publication Date: 2016-02-10
JIANGSU XIN AN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional anti-corrosion primers are greatly affected by weather and temperature. Two-component epoxy reacts slowly in winter and has a strict ratio

Method used

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  • One-component epoxy aluminum-rich coating for steel structure, and preparation method thereof
  • One-component epoxy aluminum-rich coating for steel structure, and preparation method thereof
  • One-component epoxy aluminum-rich coating for steel structure, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] First take 40% of one-component epoxy resin, 40% of aluminum powder, 15% of solvent, and 5% of additives, calculated by mass percentage.

[0015] Put the resin, additives and aluminum powder into the dispersing tank, turn on the agitator and stir slowly at a stirring speed of 300 rpm, after stirring for 30 minutes, check that it is uniform and transparent visually, control the temperature of the dispersing tank to ≤45°C (if necessary A jacket type device can be used), and after checking the viscosity ≧ 90s, the solid content ≧ 70%, the finished product is obtained.

[0016] Effect of use: Make 5 test panels with the above formula, one of which is tested for mechanical properties, and the rest for chemical properties.

[0017] The performance data of the prepared coating of table 1 embodiment 1

[0018]

Embodiment 2

[0020] First take 30% of one-component epoxy resin, 50% of aluminum powder, 15% of solvent, and 5% of additives, calculated by mass percentage.

[0021] Put the resin, additives and aluminum powder into the dispersing tank, turn on the agitator and stir slowly at a stirring speed of 300 rpm, after stirring for 30 minutes, check that it is uniform and transparent visually, control the temperature of the dispersing tank to ≤45°C (if necessary A jacket type device can be used), and after checking the viscosity ≧ 90s, the solid content ≧ 70%, the finished product is obtained.

[0022] Effect of use: Make 5 test panels with the above formula, one of which is used for mechanical performance test, and the rest is used for chemical performance test. The film thickness is 80 microns.

[0023] The prepared coating property data of table 2 embodiment 2

[0024]

Embodiment 3

[0026] First take 27% of one-component epoxy resin, 53% of aluminum powder, 15% of solvent, and 5% of additives, calculated by mass percentage.

[0027] Put the resin, additives and aluminum powder into the dispersing tank, turn on the agitator and stir slowly at a stirring speed of 300 rpm, after stirring for 30 minutes, check that it is uniform and transparent visually, control the temperature of the dispersing tank to ≤45°C (if necessary A jacket type device can be used), and after checking the viscosity ≧ 90s, the solid content ≧ 70%, the finished product is obtained.

[0028] Effect of use: Make 5 test panels with the above formula, one of which is used for mechanical performance test, and the rest is used for chemical performance test. The film thickness is 80 microns.

[0029] The prepared coating performance data of table 3 embodiment 3

[0030]

[0031] The application of a single-component epoxy aluminum-rich coating for steel structures in the present invention ...

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PUM

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Abstract

The invention discloses a one-component epoxy aluminum-rich coating for steel structure, and a preparation method thereof. The coating comprises, by mass, 30-40% of one-component epoxy resin, 40-50% of aluminum powder, 5-10% of a solvent and 1-5% of an assistant. The coating has the advantages of excellent binding property, chemical corrosion resistance, wear resistance, quick drying property, water penetration resistance, flame resistance, realization of a long-term anticorrosion effect, and can be specially used to protect the steel structure.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a single-component epoxy aluminum-rich coating for steel structures and a preparation method thereof. Background technique [0002] The steel structure in the atmospheric environment is affected by sunlight, wind and sand, rain and snow, frost and dew, and temperature and humidity changes throughout the year. Among them, oxygen and moisture in the atmosphere are important factors that cause corrosion of outdoor steel structures, causing electrochemical corrosion. [0003] Industrial gases contain SO2, CO2, NO2, Cl2, H2S and NH3, etc. Although the content of these components is small, the corrosion hazards to steel cannot be ignored. Among them, SO2 has the greatest impact, and Cl2 can cause the passivation film on the metal surface to be damaged. destroy. These gases dissolve in water and become acidic, forming acid rain and corroding metal facilities. [0004] The ocean atmosphere is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/12
Inventor 吴福娣陈晓兵杨松林
Owner JIANGSU XIN AN NEW MATERIALS TECH
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