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Anti-graffiti and scrubbing-resistant coating composition and preparation method thereof

A technology of scrub resistance and composition, applied in the field of coatings, can solve the problems of poor graffiti resistance of coatings, fast attenuation of hydrophobic effect of coatings, affecting market application prospects, etc., and achieve low VOC and excellent hydrophobic effects

Active Publication Date: 2021-07-16
HEBEI CARPOLY PAINT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of traditional water-based polyacrylate as a coating component is that the coating has poor graffiti resistance, and the hydrophobic effect of the coating decays quickly after scrubbing, which greatly affects its market application prospects.

Method used

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  • Anti-graffiti and scrubbing-resistant coating composition and preparation method thereof
  • Anti-graffiti and scrubbing-resistant coating composition and preparation method thereof
  • Anti-graffiti and scrubbing-resistant coating composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] An anti-graffiti and scrubbing-resistant coating composition, its raw materials include component A and component B, and the mass ratio of component A and component B is 100:20.

[0046] The ingredients and parts by mass that respectively constitute component A and component B are shown in the table below.

[0047] Component A:

[0048]

[0049] Component B:

[0050]

[0051] in,

[0052] The preparation method of component A is, according to the above mass parts, in the reaction kettle, put deionized water in the disc disperser, start the disperser and control the speed at 500r / min, and then add the remaining ingredients to the disperser in turn medium, disperse for 15 minutes, mix evenly;

[0053] The preparation method of component B is as follows: according to the above-mentioned parts by mass, in the reaction kettle, polyisocyanate and propylene glycol methyl ether acetate are placed in a disc disperser, start the disperser and control the speed at 500r / mi...

Embodiment 2

[0064] An anti-graffiti and scrubbing-resistant coating composition, its raw materials include component A and component B, and the mass ratio of component A and component B is 100:40.

[0065]The ingredients and parts by mass that respectively constitute component A and component B are shown in the table below.

[0066] Component A:

[0067]

[0068] Component B:

[0069]

[0070] in,

[0071] The preparation method of component A is, according to the above-mentioned mass parts, in the reaction kettle, put the deionized water in the disc disperser, start the disperser and control the rotation speed at 500r / min, and then add the remaining ingredients to the In the disperser, disperse for 15 minutes, and mix evenly;

[0072] The preparation method of component B is as follows: according to the above-mentioned parts by mass, in the reaction kettle, polyisocyanate and propylene glycol methyl ether acetate are placed in a disc disperser, start the disperser and control th...

Embodiment 3

[0083] An anti-graffiti and scrubbing-resistant coating composition, its raw materials include component A and component B, and the mass ratio of component A and component B is 100:30.

[0084] The ingredients and parts by mass that respectively constitute component A and component B are shown in the table below.

[0085] Component A:

[0086]

[0087] Component B:

[0088]

[0089] in,

[0090] The preparation method of component A is, according to the above-mentioned mass parts, in the reaction kettle, put the deionized water in the disc disperser, start the disperser and control the rotation speed at 500r / min, and then add the remaining ingredients to the In the disperser, disperse for 15 minutes, and mix evenly;

[0091] The preparation method of component B is as follows: according to the above-mentioned parts by mass, in the reaction kettle, polyisocyanate and propylene glycol methyl ether acetate are placed in a disc disperser, start the disperser and control t...

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Abstract

The invention relates to an anti-graffiti and scrubbing-resistant coating composition. The raw materials of the anti-graffiti and scrubbing-resistant coating composition comprise a component A and a component B, wherein the mass ratio of the component A to the component B is 100: (20-40); the component A comprises hydrophobic modified hydroxy acrylic resin, and the component B comprises a curing agent and alcohol ether esters; the hydrophobic modified hydroxy acrylic resin is prepared from hydrophobic gel, a fluorine surfactant and hydroxy acrylic resin; and the hydrophobic gel is prepared from polymethylsilane and alkoxy silicon resin. The invention also comprises a preparation method of the anti-graffiti and scrubbing-resistant coating composition. The product provided by the invention is energy-saving and environment-friendly, has low VOC, solves the problem of poor anti-graffiti effect of a water-based coating, and has a stain resistance score up to 87 scores. According to the method, the defect that the water-based coating is poor in stain resistance stability is overcome, after 10000 times of scrubbing resistance, the stain resistance still reaches 85%, and almost no attenuation exists.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an anti-graffiti and scrubbing-resistant coating composition and a preparation method. Background technique [0002] Anti-graffiti coatings are self-cleaning and stain-resistant, and water-based coatings are green and environmentally friendly. The combination of the two is the key development direction of modern functional coating products. However, there are still many application problems to be solved urgently for water-based anti-graffiti coatings. First of all, negative factors such as emulsifiers and wetting agents in the water phase make it difficult for hydrophobic coatings to show good anti-graffiti effects, which also leads to the intolerance of such coatings to physical friction. In addition, if the water-based coating needs to show excellent anti-graffiti effect, it often chooses a high content of fluorosilicone resin (10-30wt%), which does not reflect the material economy and...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D183/04C09D183/06C09D7/65C09D7/20
CPCC09D133/04C09D7/65C09D7/20C08L2205/035C08L2205/02C08L83/04C08L83/06Y02E10/50
Inventor 张浩许建明汪金陈玉泉谭振华
Owner HEBEI CARPOLY PAINT CO LTD
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