Environmentally-friendly waterborne rust-based anticorrosion coating

A rust, anti-corrosion and environmentally friendly technology, applied in anti-corrosion coatings, coatings, etc., can solve problems such as high energy consumption and environmental pollution, and achieve the effects of good rust resistance, simple construction methods, and stable corrosion resistance.

Inactive Publication Date: 2018-07-20
安徽喜宝高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rust anti-corrosion coatings can not only convert general rust on metal components into stable "harmless rust", but also have the function of ordinary anti-rust coatings. Since its application, it has developed rapidly and has many varieties. Solvent or dispersion medium oily rusty coatings have great environmental pollution, high energy consumption, and hidden dangers in use. Therefore, water-based rusty coatings have become the main research direction now. The initial rust on the steel surface and the adhesion of the steel floor are relatively strong. However, as the rust progresses, the initial rust castings age, and the new rust below continues to form, so it includes floating rust and firm rust. Due to its inherent properties, the rust coating can transform and stabilize the rust in the coating. From the composition analysis , rust is composed of a mixture of stable iron compounds and active iron compounds. Therefore, in addition to the performance of general antirust coatings, rusty coatings also need to have the function of transforming and stabilizing rust. This application applies to water-based rusty anti-corrosion coatings. research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] An environment-friendly water-based anti-corrosion coating with rust, comprising the following raw materials in parts by weight: 50 parts of water, 50 parts of styrene-acrylic emulsion, 15 parts of carbon nanotube composite material, 4 parts of modified aluminum phosphate molecular sieve, and 1.2 parts of substrate adhesion promoter 0.3 parts of humectants, 0.7 parts of anti-flash rust additives, 0.3 parts of thickeners, and 1.4 parts of surface tension regulators;

[0012] Wherein, the preparation method of the carbon nanotube composite material is as follows: carbon nanotubes, sepiolite powder, and ultrafine polyphosphopeptide are mixed in a weight ratio of 9:3:1, in a ball mill tank that can be sealed, under a nitrogen atmosphere, with It was obtained by ball milling for 3.5 hours under the conditions of rotating speed 900 rpm and temperature 85°C.

[0013] Wherein, the preparation method of the modified aluminum phosphate molecular sieve is to add the aluminum phosp...

Embodiment 2

[0018] An environment-friendly water-based anticorrosion coating with rust, comprising the following raw materials in parts by weight: 50 parts of water, 55 parts of styrene-acrylic emulsion, 12 parts of carbon nanotube composite material, 2 parts of modified aluminum phosphate molecular sieve, and 1.6 parts of substrate adhesion promoter 0.1 part of humectant, 0.8 part of anti-flash rust additive, 0.2 part of thickener, 1.2 part of surface tension regulator;

[0019] Wherein, the preparation method of the carbon nanotube composite material is as follows: carbon nanotubes, sepiolite powder, and ultrafine polyphosphopeptide are mixed in a weight ratio of 10:4:1, in a sealable ball mill tank, under nitrogen atmosphere, with It was obtained by ball milling for 4 hours under the conditions of rotating speed 1000 rpm and temperature 80°C.

[0020] Wherein, the preparation method of the modified aluminum phosphate molecular sieve is to add the aluminum phosphate molecular sieve into...

Embodiment 3

[0025] An environment-friendly water-based anticorrosion coating with rust, comprising the following raw materials in parts by weight: 50 parts of water, 45 parts of styrene-acrylic emulsion, 18 parts of carbon nanotube composite material, 5 parts of modified aluminum phosphate molecular sieve, and 0.8 parts of substrate adhesion promoter 0.4 parts of humectants, 0.6 parts of anti-flash rust additives, 0.4 parts of thickeners, and 1.6 parts of surface tension regulators;

[0026] Wherein, the preparation method of the carbon nanotube composite material is as follows: carbon nanotubes, sepiolite powder, and ultrafine polyphosphopeptide are mixed in a weight ratio of 8:2:1; It is obtained by ball milling for 3 hours under the conditions of rotating speed 800 rpm and temperature 90°C.

[0027] Wherein, the preparation method of the modified aluminum phosphate molecular sieve is to add aluminum phosphate molecular sieve into water equivalent to 6 times its weight, and then add sod...

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Abstract

The invention belongs to the technical field of rust-based anticorrosion coatings, and particularly relates to an environment-friendly waterborne rust-based anticorrosion coating. The coating comprises water, a styrene-acrylic emulsion, a carbon nanotube composite material, a modified aluminum phosphate molecular sieve, a substrate adhesion promoter, a humectant, a flash rust inhibitor aid, a thickener and a surface tension regulator. Compared with coatings in the prior art, the coating in the invention has the following advantages: the modified aluminum phosphate molecular sieve in the coating can react with iron rust after being hydrolyzed in order to form an insoluble complex, the carbon nanotube composite material in the coating is matched with other raw materials to fully infiltrate the surface of steel, and fully reacts with acidic iron rust to form a stable structure in order to enhance the adhesion of the coating to a substrate, the coating forms a continuous sealing coating layer on the surface of the rust layer to achieve stable corrosion resistance, and the coating also has the characteristics of zero organic solvent components, friendliness and no pollution to the environment, short film formation time, simple construction process and good antirust performance.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion paint with rust, and in particular relates to an environment-friendly water-based anticorrosion paint with rust. Background technique [0002] Rust anti-corrosion coatings can not only convert general rust on metal components into stable "harmless rust", but also have the function of ordinary anti-rust coatings. Since its application, it has developed rapidly and has many varieties. Solvent or dispersion medium oily rusty coatings have great environmental pollution, high energy consumption, and hidden dangers in use. Therefore, water-based rusty coatings have become the main research direction now. The initial rust on the steel surface and the adhesion of the steel floor are relatively strong. However, as the rust progresses, the initial rust castings age, and the new rust below continues to form, so it includes floating rust and firm rust. Due to its inherent properties, the rust coating ca...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D5/08C09D7/61C09D7/20C08F212/08C08F220/14C08F220/06C08F220/58
CPCC09D125/14C08F212/08C08K2201/011C08K2201/014C08L2205/03C09D5/08C08L23/28C08K13/06C08K9/08C08K9/02C08K7/24C08K3/346C08F220/14C08F220/06C08F220/58
Inventor 李振飞
Owner 安徽喜宝高分子材料有限公司
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