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Two-component polyurethane self-extinction velvet-feeling top-coat paint and preparation method thereof

A two-component polyurethane, self-extinguishing technology, applied in the field of coatings, can solve the problems of reduced modification effect and poor environmental protection performance of coatings

Inactive Publication Date: 2021-07-20
广东金涂宝新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing coatings have poor environmental protection performance, are not suitable for interior wall finishes, and greatly reduce the modification effect; therefore, the present invention solves such problems in a two-component polyurethane self-dulling velvet finish paint and its preparation method. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1; component A: water: 2.1%; defoamer: 0.20%; thickener: 1.2%; leveling agent: 1.5%; emulsion: 95%.

Embodiment 2

[0046] Example 2; component A: water: 0.3%; defoamer: 0.20%; thickener: 1%; leveling agent 1%; emulsion: 97.5%.

Embodiment 3

[0047] Example 3; Component A: water: 1%; defoamer: 0.17%; thickener: 0.9%; leveling agent: 1.3%; emulsion: 96.5%.

[0048] During implementation, the defoamer is: mineral oil; the emulsion is: polyurethane resin; the thickener is: hydrophobically modified polyurethane; the leveling agent is: hydrophobically modified polyurethane.

[0049] The above-mentioned curing agent is: isocyanate.

[0050] In component A: water is used for dispersion medium; defoamer is used for foam suppression and defoaming; thickener is used for adjusting rheology; leveling agent is used for adjusting rheology; emulsion is used for film forming to form a whole The coating or coating film has a special feel; in component B: the curing agent is used to react with the emulsion to make the coating film have better performance.

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Abstract

The invention discloses a two-component polyurethane self-extinction velvet-feeling top-coat paint and a preparation method thereof. A top-coat formula component A is prepared from the following components in parts by mass: 0-3% of water; 95 to 98% of emulsion; 0.8%-1.2% of a thickening agent; 1-1.5% of a leveling agent; and 0.15%-0.2% of a defoaming agent. And the component B is composed of the following components in parts by mass: 100% of a curing agent. Wherein the component A and the component B are mixed by adding water, and the mixing ratio of parts by mass is as follows; the ratio of the component A to the component B to the water is 100: 5: 10. According to the formula of the components, the prepared finish paint film is rough and soft in surface, diffuse reflection extinction is formed, the matte effect is achieved, and meanwhile, the finish paint has a special fluff touch sense, is very comfortable to touch and is very suitable for an inner wall finish. No preservative and mildew inhibitor is added, the VOC is low, and the paint is more environment-friendly and healthier.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a two-component polyurethane self-dulling velvet finish coating and a preparation method thereof. Background technique [0002] With the development of society and the improvement of people's living standards, the requirements for coatings are not limited to decorative functions, but must also have some special functions and functions, and pay more attention to health and environmental protection. [0003] After searching, it is found that the invention of application number CN201310587467.6 discloses a polyurethane waterproof anticorrosion coating and a preparation method thereof. The polyurethane waterproof and anticorrosion coating is divided into X component and Y component, and the weight mixing ratio is 2:1. The X component is composed of the following components by weight ratio: 40-50 parts of active hydrogen polymer, 20-25 parts of toluene Diisocyanate, 4-6 parts of was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/20
CPCC09D175/04C09D7/20C08L2205/035C08L2205/025
Inventor 王在满林辉
Owner 广东金涂宝新材料股份有限公司
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