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Scratch-resistant self-cleaning silicon PU finish paint and preparation method thereof

A self-cleaning, scratch-resistant technology, used in coatings, polyurea/polyurethane coatings, etc., which can solve problems such as easy brittleness, poor strength, and scratch resistance

Inactive Publication Date: 2021-07-06
湖南盛天新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a scratch-resistant self-cleaning silicon PU topcoat and its preparation method, which solves the problems of poor adhesion, brittleness, poor strength, Not resistant to scratches and dirt, the self-cleaning silicon PU topcoat is very flexible, has good adhesion, and can withstand more than 100,000 frictions; the surface of the silicon PU topcoat is hydrophobic and oleophobic, so dirt is very It is hard to stay on the surface of the topcoat. After the rain washes off, the court will look brand new

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A component and B component of a resistant self-cleaning silicon PU, including a mass ratio of 10: 1;

[0033] The Group A contains 30 parts by weight of the aqueous hydroxyacryonic resin, 10 parts of aqueous polyurethane resin, 5 parts of a silicon modified polyurethane resin, 5 parts of silicon modified acrylic resin; 0.3 parts of aqueous wetting dispersant, water resistance Defoam agent 0.3 parts, carboxymethylcellulose, 2 titanium powder, 2 tonal powder, 4 parts of the calcined kaaili, 1 polysiloxane; 2 parts of the lotus, 1 parts of nano silica; 30.8 parts; 0.3 polymonic aids, 1.5 membrane, 0.2 parts of anti-mold fungicide, 5 color slurry, 2 wax emulsions, 1 water-based thickener.

[0034] The B component is a curing agent; Bayer 2547: 10 parts.

[0035] The filler includes 1-3 oliginal talcina, 3-6 parts of calcined kaolin, 1-3 parts of titanium powder. The adhesive is selected from the group consisting of hydroxyethyl cellulose.

[0036] The hydroxyl group content of...

Embodiment 2

[0042] A component and B component of a resistant self-cleaning silicon PU, including a mass ratio of 10: 1;

[0043] Among them, the Group A includes each of the components of the weight: 32 parts of aqueous hydroxyacryonic acid resin, 10 parts of aqueous polyurethane resin, 3 parts of a silicon modified polyurethane resin, 8 parts of silicon modified acrylic resin; 1 water-based wetting dispersant, water resistance Defoam agent 0.6 parts, 0.5 carboxymethylcellulose, 1 titanium powder, 3 tonal powder, 6 copies of qioli, 0.5 polysiloxane; 3 parts of the lotus powder; 3 parts of nano silica; 32 copies; 0.2 parts of multifunctional aid, 3 film forming aid, 0.2 parts of mildew fungicide, 5 color slurry, 1 wax emulsion, 3 water-based thickeners.

[0044] The B component is a curing agent; Bayer 2547: 10 parts.

[0045] The filler includes 1-3 oliginal talcina, 3-6 parts of calcined kaolin, 1-3 parts of titanium powder. The adhesive is selected from the group consisting of hydroxyethyl...

Embodiment 3

[0052] A component and B component of a resistant self-cleaning silicon PU, including a mass ratio of 10: 1;

[0053] Among them, the Group A includes each of the components of weight: 20 parts of aqueous hydroxyacryonic resin, 12 parts of aqueous polyurethane resin, 8 parts of a silicon modified polyurethane resin, 3 parts of silicon modified acrylic resin; 1 water-based wetting dispersant, water resistance 1 defoamer, 1 carboxymethylcellulose, 3 titanium powder, 3 tonal powder, 4 parts of calcined kaolin, 0.5-1 polysiloxane; 1-3 parts of the lotus powder; nano silica 1-3 parts; 25 water; 0.5 multifunctional aid, 2 film forming aid, 0.3 parts of mildew fungicide, 5 color slurry, 3 wax emulsion, 1 water-based thickener.

[0054] The B component is a curing agent; Bayer 2547: 10 parts.

[0055] The filler includes 1-3 oliginal talcina, 3-6 parts of calcined kaolin, 1-3 parts of titanium powder. The adhesive is selected from the group consisting of hydroxyethyl cellulose.

[0056] T...

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PUM

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Abstract

The invention provides a scratch-resistant self-cleaning silicon PU finish paint. The scratch-resistant self-cleaning silicon PU finish paint comprises a component A and a component B in a mass ratio of 10:1. The component A comprises the following components in parts by weight: 20-25 parts of water-based hydroxy acrylic resin, 8-12 parts of water-based polyurethane resin, 3-8 parts of silicon modified polyurethane resin, 3-8 parts of silicon modified acrylic resin, 0.2-1 part of a water-based wetting dispersant, 0.2-1 part of a water-based defoaming agent, 0.2-1 part of an adhesive, 4-12 parts of filler and 25-30 parts of water. The component B comprises a curing agent, mamely, 10 parts of a hexamethylene diisocyanate (HDI) tripolymer. The scratch-resistant self-cleaning silicon PU finish paint is flexible and good in adhesive force, and can resist friction for more than 100 thousand times. The surface of the silicon PU finish paint is hydrophobic and oleophobic, so that dirt can hardly remain on the surface of the finish paint, and a court is in a new state after being washed by rainwater.

Description

Technical field [0001] The present invention relates to the field of silicon PU, and in particular, to a scratch resistant silicon PU topcoat and a preparation method thereof. Background technique [0002] Silicon PU is the ground material of the sports facility, with a hard-working structure and can be applied directly on the cement or asphalt. The material is scientifically combined with a polyurethane (PU) material and the material containing the organic silicone component, and the material produced is used on the surface layer of the field, and has good buffering and ductility, strong adhesive force. The foundation has certain cure functions, automatic finding, simple construction, excellent anti-aging, stable chemical performance after construction, is not easy to produce bubbles. [0003] In recent years, the two-component silicon PU topcoat with aqueous acrylic acid and PUD has gradually emerged in the Chinese market, of which aqueous acrylic is given a better hardness and...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D175/04C09D7/65C09D7/61
CPCC08K2003/2241C08K2201/011C08L2205/025C08L2205/035C09D133/08C09D7/61C09D7/65C08L75/04C08K13/02C08K3/36C08K3/22C08K3/34C08K3/346
Inventor 张书申文强谢燕平
Owner 湖南盛天新材料有限公司
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