Water-based heavy-duty anti-corrosion one-component rust primer and its preparation method and application

A rusty primer and heavy-duty anti-corrosion technology, applied in the field of chemical coatings, can solve the problems of high pre-treatment requirements, high VOC content, slow drying speed, etc., and achieve long water resistance and salt spray resistance, high hardness of paint film, metal The effect of strong adhesion

Active Publication Date: 2017-05-24
山东兴鲁化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The amount of water-based anti-corrosion coatings used in the field of heavy-duty anti-corrosion is still very low. The reasons are complex and multifaceted: 1. Some users are conservative and unwilling to try coating products based on new technologies
2. The price of solvent-based coatings is relatively cheap, but the amount of VOC emissions is large, and the environmental pollution is serious. However, there are few environmental protection regulations restricting it, and its use cannot be effectively restricted.
3. The price of water-based coatings is high, and the performance in some aspects is not ideal, and there are certain limitations in use
They have some defects such as high pre-treatment requirements, easy to cause flash rust, troublesome two-component construction, slow drying speed, high price, high VOC content, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0035] A water-based heavy-duty one-component rusty primer, the water-based heavy-duty one-component rusty primer consists of the following components in parts by weight: 20 parts of deionized water, 1 part of main conversion agent, auxiliary conversion 1 part of agent, 0.2 part of penetrating agent, 2 parts of film-forming aid, 0.2 part of antifreeze, 0.2 part of preservative, 0.1 part of thickener, 10 parts of filler, 0.3 part of defoamer, 0.5 part of dispersant, pH regulator 0.1 part, 40 parts of film former, 0.3 part of substrate wetting agent.

[0036] A kind of preparation method of described water-based heavy anticorrosion one-component rust primer, comprises the steps:

[0037] A. Stir and dissolve deionized water, main transforming agent, auxiliary transforming agent, penetrating agent, film-forming aid, and antifreeze in a jacketed stainless steel reactor, heat while stirring, and the stirring speed is 500 rpm points, the heating temperature is controlled at 60°C; ...

specific Embodiment 2

[0045] A water-based heavy-duty one-component rusty primer, the water-based heavy-duty one-component rusty primer consists of the following components in parts by weight: 30 parts of deionized water, 8 parts of main conversion agent, auxiliary conversion 3 parts of agent, 0.2 part of penetrant, 8 parts of film-forming aid, 0.2 part of antifreeze, 0.2 part of preservative, 0.1 part of thickener, 25 parts of filler, 1 part of defoamer, 1.0 part of dispersant, pH regulator 0.3 parts, 70 parts of film formers, 0.6 parts of substrate wetting agent.

[0046] A kind of preparation method of described water-based heavy anticorrosion one-component rust primer, comprises the steps:

[0047] A. Stir and dissolve deionized water, main transforming agent, auxiliary transforming agent, penetrating agent, film-forming aid, and antifreeze in a jacketed stainless steel reactor, heat while stirring, and the stirring speed is 800 rpm points, the heating temperature is controlled at 80°C;

[00...

specific Embodiment 3

[0055] A water-based heavy-duty one-component rusty primer, the water-based heavy-duty one-component rusty primer consists of the following components in parts by weight: 24 parts of deionized water, 6 parts of main conversion agent, auxiliary conversion 2 parts of agent, 0.2 part of penetrating agent, 6 parts of film-forming aid, 0.2 part of antifreeze, 0.2 part of preservative, 0.1 part of thickener, 19 parts of filler, 0.7 part of defoamer, 0.8 part of dispersant, pH regulator 0.2 parts, 60 parts of film formers, 0.4 parts of substrate wetting agent.

[0056] A kind of preparation method of described water-based heavy anticorrosion one-component rust primer, comprises the steps:

[0057] A. Stir and dissolve deionized water, main transforming agent, auxiliary transforming agent, penetrating agent, film-forming aid, and antifreeze in a jacketed stainless steel reactor, heat while stirring, and the stirring speed is 650 rpm points, the heating temperature is controlled at 70...

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PUM

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Abstract

A water-based heavy-anticorrosion single-component primer for a rusty surface consists of the following compositions: deionized water, a main conversion agent, an auxiliary conversion agent, a penetrant, a coalescing agent, an anti-freezing agent, an anti-corrosion agent, a thickening agent, a filler, an antifoam agent, a dispersant, a pH modifier, a film former, and a substrate wetting agent. The main conversion agent is an EDTA, phytic acid or tannic acid metal ion complexing agent. The auxiliary conversion agent is one or more of oxalic acid, tartaric acid, and citric acid. To apply the primer, it is only required to simply remove loose rusts and old coatings on pipes, and it is not necessary to polish tightly adhered rusts completely.

Description

technical field [0001] The invention belongs to the field of chemical coatings, and in particular relates to a water-based heavy-duty anti-corrosion single-component rust-carrying primer and a preparation method and application thereof. Background technique [0002] The current use of water-based anti-corrosion coatings in the field of heavy-duty anti-corrosion is still very low. The reasons are complex and multifaceted: 1. Some users are more conservative and unwilling to try coating products based on new technologies. 2. The price of solvent-based coatings is relatively cheap, but the amount of VOC emissions is large, causing serious environmental pollution. However, there are few environmental protection regulations that restrict its use, which cannot effectively restrict its use. 3. The price of water-based coatings is high, and the performance in some aspects is not ideal, and there are certain limitations in use. However, the benefits of using water as a solvent and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D123/08C09D7/12C09D5/08F16L58/10
CPCC09D5/08C09D7/40C09D123/08F16L58/10
Inventor 葛亮朱鹏林哲国陆崴
Owner 山东兴鲁化工股份有限公司
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