Water-based anticorrosive coating with rust and preparation method thereof

A coating and water-based technology, which is applied in the field of water-based rust and anti-corrosion coatings and its preparation, can solve the problems of insufficiently dense coating film, poor physical and mechanical properties of the coating film, poor waterproof and permeability resistance, etc., and achieves excellent physical and chemical properties. Outstanding aging and salt spray resistance

Inactive Publication Date: 2013-09-18
JIUQING PAINT SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, most of the film-forming substances of these water-based rust-resistant and anti-rust coatings are acrylic emulsions. The main problems are that the physical and mechanical properties of the coating film are slightly poor, the coating film is not dense enough, and the waterproof and impermeable properties are not good, so Salt water resistance, heat and humidity resistance, and salt spray resistance are not ideal, which affects its popularization and application

Method used

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  • Water-based anticorrosive coating with rust and preparation method thereof
  • Water-based anticorrosive coating with rust and preparation method thereof
  • Water-based anticorrosive coating with rust and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079]

[0080]

[0081] Preparation:

[0082] The first step: preparation of slurry:

[0083] Stir deionized water, dispersant, wetting agent, defoamer and HZJ-601-4 anti-rust agent evenly, add anti-sedimentation agent under stirring condition, stir and disperse for 15 minutes, then add anti-rust pigment, barium metaborate and filler Stir and disperse at high speed for 30 minutes, then grind with a mill, and take samples for inspection. The particle size of the product should reach about 25??m to make a slurry;

[0084] The second step: preparation of paint:

[0085] Add fluorine-containing rust-bearing emulsion to the slurry obtained in the first step under stirring conditions, and add color paste, bactericide, leveling agent, defoamer, conversion agent or rust stabilizer mixed with the remaining part of deionized water after stirring , stirred for 30 minutes to discharge, and filtered to obtain a rust-resistant anti-corrosion coating.

[0086] Formula of fluorine-c...

Embodiment 2

[0099]

[0100]

[0101] Preparation:

[0102] The first step: preparation of slurry:

[0103] Stir deionized water, dispersant, wetting agent, defoamer and HZJ-601-4 anti-rust agent evenly, add anti-sedimentation agent under stirring condition, stir and disperse for 15 minutes, then add anti-rust pigment, barium metaborate and filler Stir and disperse at high speed for 30 minutes, then grind with a mill, and take samples for inspection. The particle size of the product should reach about 25??m to make a slurry;

[0104] The second step: preparation of paint:

[0105] Under the condition of stirring, add the fluorine-containing rust emulsion into the slurry obtained in the first step, after stirring, add the color paste, bactericide, leveling agent, defoamer, conversion agent or rust stabilizer, stir for 30 minutes, discharge, filter, and make Anti-corrosion paint with rust.

[0106] Formula of fluorine-containing emulsion with rust

[0107]

[0108]

[0109] P...

Embodiment 3

[0119]

[0120]

[0121] Preparation:

[0122] The first step: preparation of slurry:

[0123] Stir deionized water, dispersant, wetting agent, defoamer and HZJ-601-4 anti-rust agent evenly, add anti-sedimentation agent under stirring condition, stir and disperse for 15 minutes, then add anti-rust pigment, barium metaborate and filler Stir and disperse at high speed for 30 minutes, then grind with a mill, and take samples for inspection. The particle size of the product should reach about 25??m to make a slurry;

[0124] The second step: preparation of paint:

[0125] Add fluorine-containing rust-bearing emulsion to the slurry obtained in the first step under stirring conditions, and add color paste, bactericide, leveling agent, defoamer, conversion agent or rust stabilizer mixed with the remaining part of deionized water after stirring , stirred for 30 minutes to discharge, and filtered to obtain a rust-resistant anti-corrosion coating.

[0126] Formula of fluori...

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PUM

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Abstract

The invention relates to a water-based anticorrosive coating with rust and a preparation method thereof. The water-based anticorrosive coating with the rust comprises the raw materials: 22-35 parts of de-ionized water, 35-45 parts of a fluorine-containing emulsion with the rust, 1-3 parts of an additive, 8-13 parts of an antirust pigment, 1-3 parts of color paste, 5-10 parts of filler, 2-8 parts of a transforming agent or a rust stabilizing agent, and 1.5-3.5 parts of an anti-settling agent, wherein the fluorine-containing emulsion with the rust is a coreshell emulsion prepared from a monomer, an emulsifying agent and an initiating agent; the emulsifying agent comprises the components of a phosphate emulsifying agent and a sodium sulfonate emulsifying agent; a shell part comprises the transforming agent or the rust stabilizing agent. The preparation method comprises the following steps of: stirring part of the de-ionized water, the additive, the transforming agent or the rust stabilizing agent, the anti-settling agent, the antirust pigment and the filler, and grinding the mixture into slurry; adding the fluorine-containing emulsion with the rust and the like while stirring to prepare the anticorrosive coating with the rust. The coating is nontoxic, odorless, non-combustible, non-explosive, non-volatile and low in VOC (volatile organic compounds), can be used for replacing a derusting and descaling process; a protective primer with a high adhesion force is formed; a conventional derusting process can be replaced; the coating can be directly applied to a steel structure or maintenance engineering of mechanical equipment.

Description

technical field [0001] The invention relates to coatings in the field of chemical industry, in particular to a water-based anti-corrosion coating with rust and a preparation method thereof. Background technique [0002] Metal materials have become indispensable and important materials in various fields of the national economy, especially steel, which occupies a larger proportion. Because metal materials are prone to chemical or electrochemical corrosion and damage to the surrounding medium under natural conditions or working conditions, it is not conducive to sustainable economic development and also has a certain impact on the environment. Corrosion and protection is an important science. Through appropriate corrosion control techniques and methods, corrosion damage can be prevented or slowed down, and the economic loss and social harm caused by corrosion can be minimized. [0003] There are many methods of anti-corrosion. Among them, coating anti-corrosion is still the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D5/08C08F220/18C08F220/14C08F212/08C08F220/06C08F220/22C08F220/24
Inventor 马保萍陈安仁赵勇史瑞瑾
Owner JIUQING PAINT SHANGHAI
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