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Waterborne anticorrosive coating as well as preparation method and application thereof

An anti-corrosion coating, water-based technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of large application market of light anti-corrosion coatings, loss of gloss, affecting aesthetics and service life, etc.

Inactive Publication Date: 2020-10-30
ASIA PAINT SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of many decorations on the market, as time goes by, metal products will rust and other phenomena, and wood products will appear yellowing, loss of light, rot and other phenomena, which greatly affect the aesthetics and use. service life, so the application market of light anti-corrosion coatings is huge
[0003] At present, most of the anti-corrosion coatings on the market are oily alkyd-based oily products, and the anti-corrosion coatings in the industry are generally industrial anti-corrosion coatings, which have problems such as high VOC, easy sticking back, and adhesion, so they are not suitable for use. In retail places with light anti-corrosion requirements

Method used

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  • Waterborne anticorrosive coating as well as preparation method and application thereof
  • Waterborne anticorrosive coating as well as preparation method and application thereof
  • Waterborne anticorrosive coating as well as preparation method and application thereof

Examples

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preparation example Construction

[0054] The present invention also provides a preparation method of the above-mentioned water-based anticorrosion coating, which includes the following steps: mixing the water, bentonite, film-forming substance, film-forming aid, filler and functional auxiliary to prepare the water-based anti-corrosion coating.

[0055] Further, the following steps are included:

[0056] S101: Put water, dispersant, wetting agent, bentonite, pH adjuster, 1 / 3~1 / 2 defoamer, rutile titanium dioxide, anti-rust pigment, filler at a speed of 1500r / min-2000r / min Disperse under the condition that makes the first slurry;

[0057] S102: Add film-forming substances, anti-rust pigments, film-forming aids, anti-rust aids, hydrophobic aids, thickeners, anti-corrosion and anti-fungal agents, and the remaining amount of defoaming agents to the first slurry, and Disperse evenly under the condition of 400r / min-600r / min.

[0058] By first making the powder into a slurry and then mixing it with other components ...

Embodiment 1

[0062] Formula (by weight): 5 parts of deionized water, 1.2 parts of dispersant (SN 5040), 0.5 parts of wetting agent (LFH), 0.2 parts of bentonite (50S), 0.2 parts of pH regulator (Vantex-T), 0.2 parts of defoamer (BYK-024), 20 parts of rutile titanium dioxide (R902+), 2.0 parts of filler (mica powder), 1 part of antirust pigment (Nubirox 302), modified water-based acrylate emulsion (DSMXK-802 emulsion ) 60 parts, 28.4 parts of pigment slurry, 2.5 parts of film-forming additives, 0.5 parts of anti-rust additives (FA 179), 1 part of hydrophobic additives (wax emulsion WAX 966), 0.8 parts of thickeners, anti-corrosion and anti-fungal agents 0.8 parts, 0.2 parts of defoamer; see Table 1 for details;

[0063] Preparation:

[0064] (1) Put water, dispersant, wetting agent, bentonite, pH regulator, 1 / 3~1 / 2 defoamer, rutile titanium dioxide, antirust pigment, and filler at a speed of 1500r / min-2000r / min Disperse under the condition of min to make the first slurry;

[0065] (2) Ad...

Embodiment 2～7

[0070] The formulation raw materials and preparation method are the same as in Example 1, and the specific formulation ratios are different, as shown in Table 1.

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Abstract

The invention relates to a waterborne anticorrosive coating as well as a preparation method and application thereof. The waterborne anticorrosive coating is prepared from the following components in parts by weight: 60 to 80 parts of a membrane-forming substance, 2 to 3 parts of a membrane-forming aid, 1 to 5 parts of a filler, 4 to 11 parts of a functional aid, 0.1 to 0.3 part of bentonite and 5to 10 parts of water, wherein the membrane forming substance is carboxyl-containing modified waterborne acrylate polymer emulsion prepared by self-crosslinking adipic dihydrazide, diacetone acrylamideand an acrylate monomer; and the filler is of a sheet-shaped or needle-shaped structure. The waterborne anticorrosive coating is green and environment-friendly; excellent anti-corrosion performance is realized; the service life of a corresponding coating product can be effectively prolonged; the waterborne anticorrosive coating can be widely applied to industrial and retail places with light anticorrosive requirements, has excellent adhesive force, can be directly attached to various substrates, does not need to use primer, can achieve real primer-topcoat integration, and effectively reducesthe process complexity of anticorrosive product preparation.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to water-based anticorrosion coatings and their preparation methods and applications. Background technique [0002] In recent years, with the healthy development of the national economy, the improvement of people's quality of life and the substantial improvement of the living environment, diversified home interiors have become an indispensable part of decoration, such as fences, chairs, hanging baskets, PVC pipes, etc. However, during the use of many decorations on the market, as time goes by, metal products will rust and other phenomena, and wood products will appear yellowing, loss of light, rot and other phenomena, which greatly affect the aesthetics and use. Therefore, the application market of light anti-corrosion coatings is huge. [0003] At present, most of the anti-corrosion coatings on the market are oil-based products based on oil-based alkyds, and the anti-corrosion co...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D5/08C09D7/61
CPCC08K2003/2241C09D5/08C09D133/24C09D7/61C09D7/70C08L91/06C08K13/02C08K3/22C08K3/34C08K3/346
Inventor 桂中秀裴道海李勇程敏王志鑫祁阳阳
Owner ASIA PAINT SHANGHAI
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