Stain-resistant high-temperature-resistant water-based coating and preparation method thereof

A water-based coating, high temperature resistant technology, applied in antifouling/underwater coatings, anti-corrosion coatings, fire-resistant coatings, etc. Effect

Inactive Publication Date: 2020-01-24
武汉长弢新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it also improved the problem of poor adhesion of pure fluorocarbon emulsion. After blending and modification, the adhesion reached level 1 (grid method), and the high temperature resistance, weather resistance, acid and alkali resistance, etc. were greatly improved.

Method used

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  • Stain-resistant high-temperature-resistant water-based coating and preparation method thereof
  • Stain-resistant high-temperature-resistant water-based coating and preparation method thereof
  • Stain-resistant high-temperature-resistant water-based coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. This embodiment provides a stain-resistant and high-temperature-resistant water-based paint in parts by weight. The raw materials of the stain-resistant and high-temperature-resistant water-based paint include the following components:

[0027] 50 parts of water-based fluorocarbon emulsion;

[0028] 20 parts of self-crosslinking silicone graft modified pure acrylic emulsion;

[0029] 24.5 parts of solvent;

[0030] 3 parts of filler;

[0031] 1 part of film-forming aid;

[0032] 0.5 parts of polyether polyurethane thickening rheological agent;

[0033] 0.5 parts of dispersant;

[0034] 0.2 parts of silicone defoamer;

[0035] 0.2 parts of anti-corrosion and anti-mold agent;

[0036] Thickener 0.1 part;

[0037] 0.3 parts of wetting agent;

[0038] 0.1 parts of ammonia water.

[0039] 2. The preparation method of the stain-resistant and high-temperature-resistant water-based paint includes the following steps: use a high-speed disperser to disperse and mix th...

Embodiment 2

[0045] 1. This embodiment provides a stain-resistant and high-temperature-resistant water-based paint in parts by weight. The raw materials of the stain-resistant and high-temperature-resistant water-based paint include the following components:

[0046] 35 parts of water-based fluorocarbon emulsion;

[0047] 15 parts of self-crosslinking silicone graft modified pure acrylic emulsion;

[0048] 24.5 parts of solvent;

[0049] 3 parts of filler;

[0050] 1 part of film-forming aid;

[0051] 0.5 parts of polyether polyurethane thickening rheological agent;

[0052] 0.5 parts of dispersant;

[0053] 0.2 parts of silicone defoamer;

[0054] 0.2 parts of anti-corrosion and anti-mold agent;

[0055] Thickener 0.1 part;

[0056] 0.3 parts of wetting agent;

[0057] 0.1 parts of ammonia water.

[0058] 2. The preparation method of the stain-resistant and high-temperature-resistant water-based paint includes the following steps: use a high-speed disperser to disperse and mix th...

Embodiment 3

[0064] 1. This embodiment provides a stain-resistant and high-temperature-resistant water-based paint in parts by weight. The raw materials of the stain-resistant and high-temperature-resistant water-based paint include the following components:

[0065] 30 parts of water-based fluorocarbon emulsion;

[0066] 20 parts of self-crosslinking silicone graft modified pure acrylic emulsion;

[0067] 15 parts of solvent;

[0068] 2 parts of filler;

[0069] 2 parts of film-forming aid;

[0070] 0.3 parts of polyether polyurethane thickening rheological agent;

[0071] 0.4 parts of dispersant;

[0072] 0.5 parts of silicone defoamer;

[0073] 0.6 parts of anti-corrosion and anti-mold agent;

[0074] 0.3 parts of thickener;

[0075] Wetting agent 0.1 part;

[0076] 0.2 parts of ammonia water.

[0077] 2. The preparation method of the stain-resistant and high-temperature-resistant water-based paint includes the following steps: use a high-speed disperser to disperse and mix the...

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Abstract

The invention discloses a stain-resistant high-temperature-resistant water-based coating. The coating comprises the following components in parts by weight: 30-50 parts of a water-based fluorocarbon emulsion, 10-20 parts of a self-crosslinked organic silicon grafted and modified pure acrylic emulsion, 15-30 part of a solvent, 2-5 part of a filler, 1-2 part of a coalescing agent, 0.3-0.8 part of apolyether polyurethane thickening rheological agent, 0.4-0.6 part of a dispersant, 0.2-0.5 part of an organic silicon defoamer, 0.1-0.6 part of an antiseptic antimildew agent, 0.1-0.3 part of a thickener, 0.1-0.3 part of a wetting agent and 0.1-0.2 part of ammonia water. The static water contact angle of a paint film formed by a single aqueous fluorocarbon emulsion is about 90 degrees. However, after the self-crosslinked organic silicon grafted and modified pure acrylic emulsion and the water-based fluorocarbon emulsion with a suitable proportion are adopted in the invention, fluorine and silicon elements migrate to the surface of the paint film, and the static water contact angle rises to 104 degrees, so that stain resistance performance is greatly improved, and a problem of poor adhesionof a pure fluorocarbon emulsion is improved at the same time.

Description

technical field [0001] The invention relates to the field of polymer composite material manufacturing, in particular to a stain-resistant and high-temperature resistant water-based paint and a preparation method thereof. Background technique [0002] One of the keys to the widespread use of exterior wall coatings must have a high-performance coating film-forming base material. Over the past ten years, domestic styrene-acrylic or pure acrylic emulsion-based emulsion coatings have been greatly developed, but in terms of water resistance, stain resistance and weather resistance, they are still unsatisfactory. Foreign countries have newly developed three types of high-grade exterior wall coatings: fluorocarbon resin coatings, acrylic polyurethane coatings and silicone-modified acrylate coatings. The first two types have excellent performance, but they are expensive, and they are mainly solvent-based, which do not meet environmental protection requirements or are troublesome in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D151/00C09D133/04C09D5/16C09D5/08
CPCC08L2201/08C08L2205/03C09D5/08C09D5/1687C09D5/18C09D127/12C08L51/003C08L33/04C08L75/08
Inventor 邵玮
Owner 武汉长弢新材料有限公司
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