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A kind of water-based matt paint and preparation method thereof

A water-based and coating technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of reducing gloss, reducing gloss, coating loss of transparency, etc., to achieve convenient construction, low cost, and good matting effect

Active Publication Date: 2021-01-19
苏州东沧涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the high-matte paint on the market can only reach about 20 degrees of gloss, and it cannot be reduced.
The traditional method is to use traditional matte powder to reduce gloss, but matte powder cannot effectively reduce gloss, and it will also make the coating lose its transparency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of water-based matt paint, comprising main agent and isocyanate curing agent, during use, the main agent and isocyanate curing agent are mixed in proportion, wherein the main agent is prepared from the following raw materials in parts by weight:

[0029] 70 parts of waterborne polyurethane dispersion

[0030] Anionic emulsifier 5 parts

[0031] Water-based matting emulsion 5 parts

[0032] 7 parts deionized water

[0033] Dipropylene glycol methyl ether 3 parts

[0034] 3 parts dipropylene glycol butyl ether

[0035] Wetting agent 0.3 part

[0036] 0.3 parts of defoamer

[0037] Leveling agent 0.3 parts.

[0038] Further, for a water-based matte coating according to the present invention, the water-based matting emulsion is prepared from the following raw materials in mass percentage: 8-15% of nano-silica, 3-9% of nano-titanium dioxide, 10% of isopropanol ~20%, deionized water 40~70%, dispersant 0~3%, defoamer 0.1~0.8%; the dispersant is a mixed emulsion o...

Embodiment 2

[0048] A kind of water-based matt paint, comprising main agent and isocyanate curing agent, during use, the main agent and isocyanate curing agent are mixed in proportion, wherein the main agent is prepared from the following raw materials in parts by weight:

[0049] 75 parts of waterborne polyurethane dispersion

[0050] Anionic emulsifier 7 parts

[0051] Water-based matting emulsion 8 parts

[0052] 12 parts of deionized water

[0053] Dipropylene glycol methyl ether 4 parts

[0054]Dipropylene glycol butyl ether 4 parts

[0055] Wetting agent 0.4 parts

[0056] 0.4 parts of defoamer

[0057] Leveling agent 0.4 parts.

[0058] Further, for a water-based matte coating according to the present invention, the water-based matting emulsion is prepared from the following raw materials in mass percentage: 8-15% of nano-silica, 3-9% of nano-titanium dioxide, 10% of isopropanol ~20%, deionized water 40~70%, dispersant 0~3%, defoamer 0.1~0.8%; the dispersant is a mixed emulsi...

Embodiment 3

[0068] A kind of water-based matt paint, comprising main agent and isocyanate curing agent, during use, the main agent and isocyanate curing agent are mixed in proportion, wherein the main agent is prepared from the following raw materials in parts by weight:

[0069] 80 parts of waterborne polyurethane dispersion

[0070] Anionic emulsifier 10 parts

[0071] Water-based matting emulsion 10 parts

[0072] 15 parts of deionized water

[0073] Dipropylene glycol methyl ether 5 parts

[0074] Dipropylene glycol butyl ether 5 parts

[0075] Wetting agent 0.5 parts

[0076] 0.5 parts of defoamer

[0077] Leveling agent 0.5 parts.

[0078] Further, for a water-based matte coating according to the present invention, the water-based matting emulsion is prepared from the following raw materials in mass percentage: 8-15% of nano-silica, 3-9% of nano-titanium dioxide, 10% of isopropanol ~20%, deionized water 40~70%, dispersant 0~3%, defoamer 0.1~0.8%; the dispersant is a mixed emu...

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Abstract

The invention relates to the field of special environmentally-friendly paint, in particular to a waterborne matt paint and a preparation method thereof. The waterborne matt paint comprises a main agent and an isocyanate curing agent which are mixed in proportion when in use, wherein the main agent is prepared from the following raw materials in parts by weight: 70 to 80 parts of waterborne polyurethane dispersion, 5 to 10 parts of an anionic emulsifier, 5 to 10 parts of a waterborne extinction emulsion, 7 to 15 parts of deionized water, 3 to 5 parts of dipropylene glycol monomethyl ether, 3 to5 parts of dipropylene glycol butyl ether, 0.3 to 0.5 part of a wetting agent, 0.3 to 0.5 part of a defoaming agent, and 0.3 to 0.5 part of a flatting agent. The paint can effectively solve the problem of storage stability, ensures that a film has a good transparency after being coated, cannot affect colors of crusts while achieving a matt effect, and avoids the phenomena of turning white and turning gray which is easy to occur when a delustering agent is additionally added. The paint can be applied to waterborne wood lacquer, waterborne industrial paint and waterborne plastic paint.

Description

technical field [0001] The invention relates to the field of special environmental protection coatings, in particular to a water-based matte coating and a preparation method thereof. Background technique [0002] Environmentally friendly water-based coatings are an important direction for coatings research and development and sales all over the world. Water-based paint is a paint that uses water as a diluent and does not contain organic solvents. It does not contain benzene, toluene, xylene, formaldehyde, free TDI, toxic heavy metals, non-toxic, non-irritating odor, harmless to the human body, and does not pollute the environment. The film is plump, crystal clear, flexible and has the characteristics of water resistance, wear resistance, aging resistance, yellowing resistance, fast drying, and convenient use; it can be used on various materials such as wood, metal, plastic, glass, and building surfaces. With the continuous improvement of people's living standards, the amoun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/42
CPCC08K2003/2241C09D175/04C09D7/42C08L23/06C08K3/36C08K3/22
Inventor 刘弘伟黄逢熙钟宝堂鲍朋
Owner 苏州东沧涂料科技有限公司
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