High-permeability matte top-coat coating and preparation method thereof

A transparent matte, clear surface technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor transparency, large surface area, difficult to disperse, etc., to achieve good matte and transparency, good recoating transparency, The effect of improving permeability

Inactive Publication Date: 2021-04-23
CHENGDU ZHANCHEN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, silica matting powder is mostly used in the prior art, but it has some disadvantages: on the one hand, the particle size of fumed silica is small, but the surface is extremely large, it is difficult to disperse, it is easy to form agglomeration, and white spots are formed locally. Affect the ov

Method used

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  • High-permeability matte top-coat coating and preparation method thereof
  • High-permeability matte top-coat coating and preparation method thereof
  • High-permeability matte top-coat coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] 1. A high-transparency matt clear finish coating, comprising a main agent, a curing agent and a diluent whose weight ratio is 1:0.5:0.5;

[0030] Among them, the main agent includes 76 parts by weight of alkyd resin, 6 parts of butyl acetate, 6 parts of ethyl acetate, 3 parts of nitrocellulose, 6 parts of organic matting powder, and 0.2 parts of modified silicone defoamer. 0.6 part of polymer dispersant, 2 parts of polyamide wax and 0.2 part of organic leveling agent;

[0031] The diluent comprises 20 parts by weight of dimethylbenzene, 60 parts of butyl acetate and 20 parts of propylene glycol methyl ether acetate;

[0032] The curing agent includes 45 parts of aromatic isocyanate, 25 parts of trimer isocyanate and 30 parts of butyl acetate in parts by weight.

[0033] 2. A preparation method for a high-transparency matte clear coating, comprising the following steps:

[0034] 1) Preparation of the main ingredient: mix alkyd resin, butyl acetate, modified silicone de...

Embodiment 2

[0039] 1. A high-transparency matt clear finish coating, comprising a main agent, a curing agent and a diluent whose weight ratio is 1:0.6:0.8;

[0040] Among them, the main agent includes 75 parts by weight of alkyd resin, 5 parts of butyl acetate, 5 parts of ethyl acetate, 3 parts of nitrocellulose, 8 parts of organic matting powder, and 0.2 parts of modified silicone defoamer. 0.8 parts of polymer dispersant, 2.8 parts of polyamide wax and 0.2 parts of organic leveling agent;

[0041] The diluent comprises 20 parts of xylene, 68 parts of butyl acetate and 12 parts of propylene glycol methyl ether acetate in parts by weight;

[0042] The curing agent includes 40 parts of aromatic isocyanate, 30 parts of trimer isocyanate and 30 parts of butyl acetate in parts by weight.

[0043] 2. A preparation method for a high-transparency matte clear coating, comprising the following steps:

[0044] 1) Preparation of the main ingredient: mix alkyd resin, butyl acetate, modified silicon...

Embodiment 3

[0049] 1. A high-transparency matte clear finish coating, comprising a main agent, a curing agent and a diluent whose weight ratio is 1:0.8:1;

[0050] Among them, the main agent includes 65 parts by weight of alkyd resin, 1 part of butyl acetate, 3 parts of ethyl acetate, 1 part of nitrocellulose, 5 parts of organic matting powder, and 0.1 parts of modified silicone defoamer. 0.3 part of polymer dispersant, 1 part of polyamide wax and 0.1 part of organic leveling agent;

[0051] The diluent comprises 15 parts of xylene, 55 parts of butyl acetate and 5 parts of propylene glycol methyl ether acetate in parts by weight;

[0052] The curing agent includes 45 parts of aromatic isocyanate, 15 parts of trimer isocyanate and 20 parts of butyl acetate in parts by weight.

[0053] 2. A preparation method for a high-transparency matte clear coating, comprising the following steps:

[0054] 1) Preparation of the main ingredient: mix alkyd resin, butyl acetate, modified silicone defoame...

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Abstract

The invention relates to the technical field of coating preparation, and discloses a high-permeability matte top-coat coating which comprises a main agent, a curing agent and a diluent, wherein the main agent comprises the following components in parts by weight: 65-80 parts of alkyd resin, 1-10 parts of butyl acetate, 3-8 parts of ethyl acetate, 1-5 parts of nitrocellulose, 5-10 parts of organic extinction powder, 0.1-0.5 part of an antifoaming agent, 0.3-1 part of a dispersing agent, 1-5 parts of an anti-settling agent and 0.1-0.5 part of a leveling agent; the diluent is prepared from the following components in parts by weight: 15 to 25 parts of xylene, 55 to 75 parts of butyl acetate and 5 to 20 parts of propylene glycol methyl ether acetate; and the curing agent is prepared from the following components in parts by weight: 45 to 70 parts of aromatic isocyanate, 15 to 35 parts of trimer isocyanate and 20 to 35 parts of butyl acetate. The invention also discloses a preparation method of the high-permeability matte top-coat coating. According to the invention, the influence of the matting powder and the addition amount thereof on the transparency of the coating is eliminated, and the effects of good matte degree and transparency, especially good recoating transparency, of the high-permeability matte top-coat coating are achieved.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a high-transparency matte clear paint and a preparation method thereof. Background technique [0002] Gloss paint is deeply loved by consumers for its bright and bright color, and has dominated the paint market for a long time. However, with the gradual improvement of people's living standards, on the one hand, consumers feel that the reflection of high-gloss bright paint is more serious after film formation, which is harmful to eyes and is easy to leave fingerprints and other traces; on the other hand, consumers People's aesthetic concept is more and more inclined to leisure, fashion and individuality. Therefore, the use of matt clear coatings is becoming more and more widespread. Moreover, as consumers have higher and higher requirements for the performance of furniture coatings, furniture factories often cause product rework due to various reasons during the produc...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D7/42C09D7/65
Inventor 李立文
Owner CHENGDU ZHANCHEN PAINT
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