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Method for improving anticorrosion performance of water-based paint

A water-based paint and performance technology, applied in anti-corrosion coatings and other directions, can solve problems such as heavy anti-corrosion and unfavorable anti-corrosion

Inactive Publication Date: 2019-06-07
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, water-based paints at home and abroad are still difficult to achieve heavy-duty anti-corrosion effects.
This is very bad for corrosion

Method used

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  • Method for improving anticorrosion performance of water-based paint
  • Method for improving anticorrosion performance of water-based paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: Weigh 200 mg of reduced graphene oxide and 100 mg of ferroferric oxide dispersed in 5 mL of N,N-dimethylformamide ultrasonically to obtain a uniformly dispersed reduced graphene oxide-ferric oxide dispersion; The dispersion was added to 10 g of Juyou brand water-based paint, and mechanically stirred for 5 hours to obtain a water-based paint with improved anti-corrosion performance. Its various performance indexes are shown in Table 1.

Embodiment 2

[0015] Example 2: Weigh 200 mg of reduced graphene oxide, 50 mg of ferroferric oxide and ultrasonically dispersed in 5 mL of N,N-dimethylformamide to obtain a uniformly dispersed reduced graphene oxide-ferric oxide dispersion; The dispersion was added to 10 g of Juyou brand water-based paint, and mechanically stirred for 5 hours to obtain a water-based paint with improved anti-corrosion performance. Its various performance indexes are shown in Table 1.

Embodiment 3

[0016] Example 3: Weigh 300 mg of reduced graphene oxide, 50 mg of ferroferric oxide and ultrasonically dispersed in 5 mL of N,N-dimethylformamide to obtain a uniformly dispersed reduced graphene oxide-ferric oxide dispersion; The dispersion was added to 10 g of Juyou brand water-based paint, and mechanically stirred for 5 hours to obtain a water-based paint with improved anti-corrosion performance. Its various performance indexes are shown in Table 1.

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Abstract

The invention provides a method for improving the anticorrosion performance of a water-based paint. The water-based paint is mixed with Fe3O4 nanoparticles or / and reduced graphene oxide to improve theanticorrosion performance of the water-based paint. The SEM image shows that the surface of a film formed by the paint mixed with the reduced graphene oxide and / or Fe3O4 has no deep micro-pores, so the reduced graphene oxide / ferriferrous oxide, reduced graphene oxide or Fe3O4 can effectively fill the micro-pores to make the surface of the film complete, and is in favor of blocking a corrosive medium from reaching the metal matrix in order to achieve a good anticorrosive effect.

Description

Technical field [0001] The invention relates to a method for improving the water resistance of water-based paint, and belongs to the field of water-based anticorrosive paint. Background technique [0002] At present, the anti-rust paints used on the Chinese market basically use gasoline, kerosene or machine oil as solvents. They are all products of petroleum fractionation. Because they cannot remove the aromatic hydrocarbons contained in petroleum, gasoline and kerosene And machine oils contain aromatic hydrocarbons. Using gasoline and kerosene as solvent oil, one is that it has a low flash point and is easy to catch fire, and the other is that it pollutes the environment and is harmful to human health. [0003] With the continuous advancement of environmental protection in my country, it is a general trend that oil-based paint is replaced by water-based paint. Water-based paint does not contain or contains a small amount of aromatic hydrocarbons, lead and other harmful substances...

Claims

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Application Information

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IPC IPC(8): C09D5/08
Inventor 莫尊理燕敏王瑞娟张红娟冯航空郭瑞斌
Owner NORTHWEST NORMAL UNIVERSITY
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