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Water-based antirust paint with rust and preparation method thereof

A rust-resistant, water-based technology, applied in the field of coatings, can solve the problems of rust removal methods that cannot meet engineering needs, pollute the environment, labor costs, and high labor intensity, and achieve excellent physical and chemical anti-rust, simple preparation methods, and easy coating The effect of low cost

Active Publication Date: 2016-05-11
重庆南方漆业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large-scale steel installations and facilities, such as oil storage tanks, iron frames, iron bridges, sluice gates, ships, etc., can only be derusted by hand, which is not only labor-intensive and inefficient, but also difficult to remove rust
Small and medium-sized steel parts can be derusted by shot blasting. Although the derusting effect is good, it is subject to various restrictions due to large dust, loud noise, serious environmental pollution and high labor costs.
With the development of industry, there are more and more projects such as steel bridges and large pipelines. The above rust removal methods are far from meeting the needs of the project. Therefore, it is necessary to develop a coating that can directly paint the surface of corroded steel.
[0003] The Chinese patents whose application numbers are 98112434.8 and 201010214310.5 respectively disclose organic solvent-type A and B two-component anti-rust coatings with rust. The patent discloses a rusty coating for oil well pipes. The coating has the characteristics of good anti-sagging performance, fast surface drying time and integration of the bottom surface, but the solvent used in the coating is xylene, which pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The formula of water-based anti-rust paint with rust: it consists of the following components by mass percentage:

[0027] 20% styrene-acrylic emulsion, 8% water-soluble epoxy resin, 5% water-soluble acrylic resin, 4% iron oxide red, 2% graphene, 2% zinc oxide, 30% barium sulfate, 0.2% tea polyphenols, tannin Acid 0.8%, catechol 0.5%, BYK-358N 0.10%, tributyl phosphate 0.15%, HT-1300.2%, hydroxymethyl cellulose 2%, add water to 100%.

[0028] The preparation method of water-based anti-rust paint with rust, comprises the following steps:

[0029] (1) Get iron oxide red, graphene, zinc oxide, barium sulfate, dispersant and water and two-thirds of the formula amount of antifoaming agent in the formula amount and put it in the cylinder, and disperse it for 30 minutes at 1500 rpm to prepare Obtain pigment and filler slurry;

[0030] (2) Transfer the obtained pigment and filler slurry to a grinder, and grind to a fineness of less than 50 microns;

[0031] (3) Transfer the ...

Embodiment 2

[0033] The formula of water-based anti-rust paint with rust: it consists of the following components by mass percentage:

[0034] 20% styrene-acrylic emulsion, 10% water-soluble epoxy resin, 2% water-soluble acrylic resin, 2% iron oxide red, 4% graphene, 1.5% zinc oxide, 25% barium sulfate, 0.3% oxalic acid, 0.7 tannic acid %, catechol 0.5%, TR-9358 0.20%, tributyl phosphate 0.15%, BYK-1700.3%, alginate 2%, add water to 100%.

[0035] The preparation method of water-based anti-rust paint with rust is the same as in Example 1.

Embodiment 3

[0037] The formula of water-based anti-rust paint with rust: it consists of the following components by mass percentage:

[0038]Styrene-acrylic emulsion 25%, water-soluble epoxy resin 5%, water-soluble acrylic resin 1%, iron oxide red 5%, graphene 3%, zinc oxide 1%, barium sulfate 20%, tea polyphenol 0.2%, tannin Acid 0.8%, catechol 0.5%, BYK-358N 0.10%, tributyl phosphate 0.15%, HT-1300.2%, hydroxymethyl cellulose 2%, water added to 100%.

[0039] The preparation method of water-based anti-rust paint with rust is the same as in Example 1.

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PUM

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Abstract

The invention discloses a waterborne residual rust antirust coating and a preparation method thereof. The waterborne residual rust antirust coating is prepared from styrene-acrylic emulsion, water soluble epoxy resin, water soluble acrylic resin, iron oxide red, graphene, zinc oxide, barium sulphate, transforming agents, a transformation accelerator, a levelling agent, a defoaming agent, a dispersing agent, a thickening agent and water. The waterborne residual rust antirust coating contains no organic solvent, is environment-friendly and pollution-free, has the characteristic that bottom and surface are combined and has an excellent physical and chemical antirust and rust transforming function, is applicable to rust protection of the surface of steel with rust, a hard oxidation skin layer or an oil paint film and is also applicable to rust protection of the surface of rust-free steel, the preparation method is simple, construction is easy, two transforming agents are complexed in the waterborne residual rust antirust coating, so that a binding force between the waterborne residual rust antirust coating and rust is increased, the waterborne residual rust antirust coating can be directly brushed and coated on the surface of rusty steel and is applicable to multiple construction ways such as spraying, brushing and showering, the coating cost is low, and the rust protection requirements of urban road facilities, bridges, oil and gas pipelines, engineering mechanical equipment, ships and the like can be met.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to a water-based coating and a preparation method thereof. Background technique [0002] Steel structure engineering is a structure mainly made of steel, which is one of the main types of modern industrial and architectural structures, but its easy to corrode characteristics have brought huge losses to the national economy. In order to protect steel from rust, a layer of paint is often applied to its surface. In the past, before using paint, the base material must be thoroughly derusted, and even the original color of the metal base must be exposed. Large-scale steel installations and facilities, such as oil storage tanks, iron frames, iron bridges, sluice gates, ships, etc., often can only be derusted by hand, which is not only labor-intensive and inefficient, but also difficult to remove rust. Small and medium-sized steel parts can be derusted by shot peening. Although the derusting effect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D163/00C09D133/00C09D5/08C09D7/12
Inventor 陈久存李长明李文君刘茵沁
Owner 重庆南方漆业有限公司
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