Waterborne epoxy zinc-rich paint modified by nanometer conductive carbon material and preparation method thereof

A water-based epoxy zinc-rich, nano-conductive technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings and other directions, can solve the problems of short effective anti-corrosion time, increase the cost of steel structure painting and maintenance, and improve anti-corrosion performance, Extend service life and enhance the effect of current conduction

Active Publication Date: 2014-01-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effective anti-corrosion time of epoxy zinc-rich coatings currently on the market is relatively short, only 3-5 years, which increases the cost of coating and maintenance of steel structures

Method used

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  • Waterborne epoxy zinc-rich paint modified by nanometer conductive carbon material and preparation method thereof
  • Waterborne epoxy zinc-rich paint modified by nanometer conductive carbon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Weigh 0.35 g of hydroxyl multi-walled carbon nanotubes and ultrasonically disperse them in 10 ml of deionized water to prepare multi-walled carbon nanotubes slurry;

[0028] (2) Add 100g of epoxy emulsion, 1g of FX600, 1g of AP7015 and 50ml of deionized water into the mixing tank of the high-speed disperser, stir at 200r / min for 20 minutes, and disperse evenly;

[0029] (3) Add 156g of zinc powder and 7.5g of sodium montmorillonite successively while continuing to stir, and stir at 600r / min;

[0030] (4) Add the multi-walled carbon nanotube slurry prepared in (1) gradually to the slurry obtained in (3), and disperse at a high speed of 1500r / min for 30 minutes to prepare component A;

[0031] (5) Add 40g of amine-modified curing agent emulsion (component B) with a solid content of 50% to component A, stir gently, and sieve to obtain nano-conductive carbon material modified water-based zinc-rich epoxy coating;

[0032] (6) Spray the prepared nano-conductive carbon m...

Embodiment 2

[0034] (1) Weigh 0.56 hydroxyl multi-walled carbon nanotubes and ultrasonically disperse them in 10ml deionized water to prepare multi-walled carbon nanotubes slurry;

[0035] (2) Add 100g of epoxy emulsion, 1g of FX600, 1g of AP7015 and 50ml of deionized water into the mixing tank of the high-speed disperser, stir at 200r / min for 20 minutes, and disperse evenly;

[0036] (3) Add 156g of zinc powder and 7.5g of sodium montmorillonite successively while continuing to stir, and stir at 600r / min;

[0037] (4) Add the multi-walled carbon nanotube slurry prepared in (1) gradually to the slurry obtained in (3), and disperse at a high speed of 1500r / min for 30 minutes to prepare component A;

[0038] (5) Add 40g of amine-modified curing agent emulsion (component B) with a solid content of 50% to component A, stir gently, and sieve to obtain nano-conductive carbon material modified water-based zinc-rich epoxy coating;

[0039] (6) Spray the prepared nano-conductive carbon material m...

Embodiment 3

[0041] (1) Weigh 0.98 g of hydroxyl multi-walled carbon nanotubes and ultrasonically disperse them in 20 ml of deionized water to prepare multi-walled carbon nanotubes slurry;

[0042] (2) Add 100g of epoxy emulsion, 1g of FX600, 1g of AP7015 and 50ml of deionized water into the mixing tank of the high-speed disperser, stir at 200r / min for 20 minutes, and disperse evenly;

[0043] (3) Add 156g of zinc powder and 7.5g of sodium montmorillonite successively while continuing to stir, and stir at 600r / min;

[0044] (4) Add the multi-walled carbon nanotube slurry prepared in (1) gradually to the slurry obtained in (3), and disperse at a high speed of 1500r / min for 45 minutes to prepare component A;

[0045] (5) Add 40g of amine-modified curing agent emulsion (component B) with a solid content of 50% to component A, stir gently, and sieve to obtain nano-conductive carbon material modified water-based zinc-rich epoxy coating;

[0046] (6) Spray the prepared nano-conductive carbon m...

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Abstract

The invention discloses a waterborne epoxy zinc-rich paint modified by a nanometer conductive carbon material and a preparation method thereof. The paint is composed of a component A and a component B, wherein the component A comprises waterborne epoxy emulsion, the nanometer conductive carbon material, zinc powder, a waterborne antifoaming agent, a waterborne wetting dispersant and the like, and the component B is modified amine curing agent emulsion. The preparation method comprises: (1) preparing a waterborne slurry of the nanometer conductive carbon material; (2) adding water, waterborne epoxy emulsion, waterborne anti-forming agent and waterborne wetting dispersant into a stirred tank, stirring with a low speed to disperse uniformly, successively adding zinc powder, an anti-settling agent, the nanometer conductive carbon material slurry and the like, dispersing with a high speed to obtain the component A of the waterborne epoxy zinc-rich paint modified by the nanometer conductive carbon material; and (3) adding the component B into the component A, stirring uniformly and sieving. By employing the waterborne epoxy zinc-rich paint of the invention, the obtained epoxy anticorrosion coating modified by the nanometer conductive carbon material has excellent corrosion resistance and impact resistance.

Description

technical field [0001] The invention belongs to the field of anti-corrosion coatings, in particular to a water-based epoxy zinc-rich coating modified by a nano-conductive carbon material and a preparation method thereof Background technique [0002] The phenomenon of metal corrosion pervades all fields of national economy and national defense construction. The corrosion of metal materials has greatly affected the service life and safety of metal structures, instruments and equipment, bridges, buildings, vehicles, etc., and the damage is very serious. According to statistics, the annual economic loss caused by metal corrosion in developed countries in the world accounts for about 3.5% to 4.2% of their gross national product, which exceeds the sum of the annual losses of various natural disasters (fire, wind disaster and earthquake, etc.). The direct loss caused by corrosion in my country reaches 600 billion yuan every year, accounting for about 1.5% of GDP, and there is an in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/10C09D7/12
Inventor 崔中越刘香兰田兴友郑康胡坤林永兴包超陈林张献
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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