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Low-thixotropy self-delustering coating and preparation method thereof

A self-extinction and thixotropic technology, applied in the direction of coating, etc., can solve problems such as poor fluidity, reduced fullness, and influence on construction, and achieve the effect of excellent fluidity, low thixotropic value, and good operability

Active Publication Date: 2016-05-25
SHENZHEN ZICAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main method of matting paint is to rely on low-viscosity resin to add a large amount of matting powder to achieve the purpose of matting. 4 or more, and the gloss is generally above 70 degrees. If you want to obtain lower gloss, such as below 30 degrees or below 10 degrees, the amount of matte powder needs to be greatly increased, making the viscosity and thixotropy of the whole system extremely High, poor fluidity, which seriously affects the construction, and brings problems such as roller coating sticking back, matte powder flocculation, film surface wrinkling, reduced fullness, and serious surface scratches. To solve the thixotropic problem of matte coatings, it is necessary to Use less matte powder, or avoid it, to get matting, low-thixotropic coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: In the embodiment of the present invention, a low thixotropic self-extinguishing paint, the raw materials according to parts by weight include: 25 parts of silicon-modified acrylic resin, 35 parts of acrylated acrylic resin, 10 parts of isooctyl acrylate, methyl methacrylate 5 parts of hydroxyethyl acrylate, 8 parts of photoinitiator, 1 part of dispersant, 1 part of leveling agent, 1 part of matting powder, 1 part of surfactant, and 1 part of defoamer.

[0019] Wherein, the silicon-modified acrylic resin is selected from a resin with a silicon content of more than 15% to ensure good suspension performance of the system; the acrylated acrylic resin is selected from solid acrylic acid with a dilution ratio of 30%-50%. resin, to ensure low refractive index and moderate viscosity; the photoinitiator uses short-wave photoinitiator to ensure good surface drying effect; the surfactant is a medium solid content additive containing silicon to ensure the suspension e...

Embodiment 2

[0029] Embodiment 2: In the embodiment of the present invention, a low thixotropic self-extinguishing paint, the raw materials according to weight include: 38 parts of silicon-modified acrylic resin, 35 parts of acrylated acrylic resin, 10 parts of isooctyl acrylate, methyl methacrylate 5 parts of hydroxyethyl acrylate, 9 parts of photoinitiator, 1 part of dispersant, 1 part of leveling agent, 1 part of matting powder, 1 part of surfactant, and 1 part of defoamer.

[0030] Wherein, the silicon-modified acrylic resin is selected from a resin with a silicon content of more than 15% to ensure good suspension performance of the system; the acrylated acrylic resin is selected from solid acrylic acid with a dilution ratio of 30%-50%. resin, to ensure low refractive index and moderate viscosity; the photoinitiator uses short-wave photoinitiator to ensure good surface drying effect; the surfactant is a medium solid content additive containing silicon to ensure the suspension effect; T...

Embodiment 3

[0040] Embodiment 3: In the embodiment of the present invention, a low thixotropic self-extinguishing paint, the raw materials according to parts by weight include: 38 parts of silicon-modified acrylic resin, 30 parts of acrylated acrylic resin, 12 parts of isooctyl acrylate, methyl methacrylate 10 parts of hydroxyethyl acrylate, 10 parts of photoinitiator, 1 part of dispersant, 1 part of leveling agent, 2 parts of matting powder, 1 part of surfactant, and 1 part of defoamer.

[0041] Wherein, the silicon-modified acrylic resin is selected from a resin with a silicon content of more than 15% to ensure good suspension performance of the system; the acrylated acrylic resin is selected from solid acrylic acid with a dilution ratio of 30%-50%. resin, to ensure low refractive index and moderate viscosity; the photoinitiator uses short-wave photoinitiator to ensure good surface drying effect; the surfactant is a medium solid content additive containing silicon to ensure the suspensio...

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PUM

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Abstract

The invention discloses a low-thixotropy self-delustering coating which is prepared from, by weight, 25-50 parts of silicone modified acrylic resin, 20-45 parts of propylene acidated acrylic resin, 5-15 parts of crylic acid isooctyl ester, 1-10 parts of hydroxyethyl methacrylate, 6-12 parts of photoinitiator, 2-5 parts of a dispersing agent, 1-2 parts of a flatting agent, 1-2 parts of delustering powder, 1-2 parts of a surface active agent and 1-2 parts of a defoaming agent. A preparation method of the low-thixotropy self-delustering coating includes the following steps that 1, the silicone modified acrylic resin, the propylene acidated acrylic resin, the crylic acid isooctyl ester and the hydroxyethyl methacrylate are sequentially fed according to the formula ratio and stirred to be uniform; 2, the photoinitiator, the dispersing agent and the delustering powder are slowly added and stirred; 3, the remaining items are added and stirred, and the low-thixotropy self-delustering coating is obtained. By means of the low-thixotropy self-delustering coating and the preparation method thereof, the self-delustering effect without the help of matt powder can be achieved, the thixotropy value is lower than 2, the flowing property is excellent, the processes of roller painting, spraying painting, silk-screen and the like are conducted easily, operation performance is good, and the surface of a coating film is free of scratches.

Description

technical field [0001] The invention relates to the field of matting coatings, in particular to a low-thixotropic self-matting coating and a preparation method thereof. Background technique [0002] At present, the demand for matte coatings in the paint industry is rising. Matte coatings give people a softer, original, and retro artistic enjoyment. They are widely used in wood floor UV coatings, furniture UV coatings, PVC floor tile coatings, etc. [0003] At present, the main method of matting paint is to add a large amount of matte powder to the low-viscosity resin to achieve the purpose of matting, but this brings about an increase in the viscosity and viscosity of the paint. Adding more than 5% of the matte powder thixotropy will generally increase to 4 or more, and the gloss is generally more than 70 degrees. In order to obtain a lower gloss, such as below 30 degrees or below 10 degrees, the amount of matte powder needs to be greatly increased, so that the viscosity and...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/12
CPCC09D4/06C08F265/02
Inventor 田涛胡志峰
Owner SHENZHEN ZICAI TECH CO LTD