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Scrub-resistant and odor-free polyurethane (PU) matt finish paint and preparation method thereof

A topcoat and matte technology, which is applied in the field of topcoats, can solve the problems of PU matte topcoats such as abrasion resistance and poor odor removal performance, and achieve the effects of increasing hardness, crosslinking density, and glass transition temperature

Inactive Publication Date: 2017-01-25
展辰新材料集团股份有限公司 +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of anti-scratch PU matte topcoat and its preparation method, aiming to solve the problems of the existing PU matte topcoats with poor anti-scratch and odor-cleaning properties

Method used

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  • Scrub-resistant and odor-free polyurethane (PU) matt finish paint and preparation method thereof
  • Scrub-resistant and odor-free polyurethane (PU) matt finish paint and preparation method thereof
  • Scrub-resistant and odor-free polyurethane (PU) matt finish paint and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0040] And, the embodiment of the present invention also provides a kind of preparation method of anti-clean smell PU matte topcoat, comprising the following steps:

[0041] S01. Weigh each component according to the formula of the above-mentioned odor-resistant PU matte finish, and divide the solvent into two parts: the first solvent and the second solvent;

[0042] S02. Mix and disperse the PU low-odor alkyd resin, defoamer, dispersant, anti-settling agent, wear-resistant and anti-scratch agent and the first solvent at a stirring rate of 600-800r / min to obtain the first mixed materials;

[0043] S03. Add black powder, glass powder, and matting powder in sequence to the first mixed material, and carry out mixing and dispersing treatment at a stirring rate of 1100-1300r / min to obtain a second mixed material;

[0044] S04. Add a leveling agent and a second solvent into the second mixed material, and carry out mixing and dispersing treatment at a stirring rate of 600-800r / min t...

Embodiment 1

[0050] A kind of anti-cleaning smell PU matte topcoat, comprises the following components of following parts by weight:

[0051]

[0052]

[0053] The preparation method of described anti-clean smell PU matte finish, comprises the following steps:

[0054] S11. Weigh each component according to the formula of the above-mentioned odor-resistant PU matte finish, and divide the solvent into two parts: the first solvent and the second solvent;

[0055] S12. Mix and disperse the PU low-odor alkyd resin, defoamer, dispersant, anti-settling agent, wear-resistant and anti-scratch agent and the first solvent for 10 minutes at a stirring rate of 700 r / min to obtain the first mixture material;

[0056] S13. Add black powder, glass powder, and matting powder in sequence to the first mixed material, and carry out mixing and dispersing treatment at a stirring rate of 1200r / min for 30 minutes to obtain a second mixed material;

[0057] S14. Add a leveling agent and a second solvent i...

Embodiment 2

[0059] A kind of anti-cleaning smell PU matte topcoat, comprises the following components of following parts by weight:

[0060]

[0061]

[0062] The preparation method of the anti-scratch PU matte finish is the same as in Example 1.

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Abstract

The invention provides scrub-resistant and odor-free polyurethane (PU) matt finish paint, prepared from the following components in parts by weight: 40-80 parts of PU low-odor alkyd resin, 1-4 parts of anti-settling slurry, 0.2-1 part of a dispersing agent, 0.5-1 part of a wear-resistant anti-scraping agent, 0.2-0.5 part of a flatting agent, 0.1-0.3 part of a defoaming agent, 4-12 parts of glass powder, 10-20 parts of a solvent and 1-7 parts of extinction powder, wherein the weight-average molecular weight of the PU low-odor alkyd resin is 4000-5000, and the mass percentage of primary hydroxyl in the PU low-odor alkyd resin is 3.5-4%.

Description

technical field [0001] The invention belongs to the field of topcoats, and in particular relates to an odor-resistant PU matte topcoat and a preparation method thereof. Background technique [0002] There are many kinds of paints used for wood products today, and as the country has stricter and stricter environmental protection requirements for paints. As the final coating of painting, the topcoat has high requirements on the materials used, not only must have good chroma, brightness, pollution resistance, aging resistance, moisture resistance, mildew resistance, but also must not pollute the environment, Safe and non-toxic, no fire hazard, convenient construction, fast drying of coating film, good gloss and color retention, good air permeability and so on. [0003] Most of the PU matte finishes used for today's speakers, tables, etc., most of them have poor scratch resistance. When touching or wiping with hands, scratches will appear on the paint film. With the developmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12
CPCC09D175/14C08K3/04C08K3/40
Inventor 刘炳国陈寿生
Owner 展辰新材料集团股份有限公司