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Transparent anti-graffiti dirt-resistant anti-weathering coating

An anti-graffiti and anti-fouling technology, used in anti-fouling/underwater coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve the problems of reduced anti-graffiti effect, increased surface energy, and reduced anti-fouling performance. , to achieve the effect of improving the protection of the environment and human body, and improving the weather resistance

Active Publication Date: 2010-07-21
AVIC BIAM NEW MATERIALS TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned anti-graffiti coatings have very good anti-graffiti effects in a short period of time, but they have a common shortcoming, that is, after repeated graffiti removal and physical wear, the surface energy will increase and the anti-sticking performance will decrease; especially After being exposed to the sun for several years outdoors, with the aging, pulverization and cracking of the coating resin, the anti-graffiti effect of the entire coating is greatly reduced, and the anti-sticking and staining properties are almost completely lost.

Method used

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  • Transparent anti-graffiti dirt-resistant anti-weathering coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Preparation of component A: 1.5 grams of wetting and dispersing agent of polyamine block copolymer solution with a molecular weight of 20000, 2 grams of anti-aging agent (wherein ultraviolet absorber phenyl salicylate: quencher di-n-butyl disulfide Nickel carbamate: free radical scavenger bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate molar ratio is 1.0:0.6:0.6), 2 grams of modified Polysiloxane type leveling agent, 0.4 grams of high fatty acid glyceride defoamer and 2.1 grams of aluminum stearate are added to 20 grams of hydroxy acrylic resin, 20 grams of fluorine modified hydroxy acrylic resin and 22 grams of silicone modified hydroxyacrylic resin, and then added to 30 grams of butyl acetate solvent and stirred for 1 hour to fully mix the two.

[0043] Preparation of component B: Dissolve 65 grams of HDI trimer in 35 grams of butyl acetate, stir well and mix well.

[0044] Before coating, the two components A and B are mixed in a ratio of 5:2, and after being stir...

Embodiment 2

[0046] Preparation of component A: 4 grams of acidic group-containing copolymer solution, 1.5 grams of anti-aging agent (wherein ultraviolet absorber benzotriazole ester: quencher phosphonic acid monoester nickel: free radical scavenger bis(1, The molar ratio of 2,2,6,6-pentamethyl-4-piperidinyl) sebacate is 1.5:0.8:0.6), 0.8 gram of modified polysiloxane type leveling agent, 0.4 gram of modified Add to 20 grams of hydroxy acrylic resin, 25 grams of fluorine modified hydroxy acrylic resin and 20 grams of silicone modified hydroxy acrylic resin, and then add 25 grams of propylene glycol Stir in the methyl ether acetate solvent for 1 hour, so that the two are fully mixed and uniform.

[0047] Preparation of component B: Dissolve 70 grams of HDI trimer in 30 grams of propylene glycol methyl ether acetate and stir well to mix evenly.

[0048] Before coating, the two components A and B are mixed in a ratio of 6:1, and after being stirred evenly, a transparent anti-graffiti and ant...

Embodiment 3

[0050] Preparation of component A: 0.5 grams of wetting and dispersing agent with a molecular weight of 20000 polyamine block copolymer solution, 1.5 grams of anti-aging agent (wherein ultraviolet absorber benzophenone: quencher nickel thiobisphenol: free The molar ratio of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate as the base capture agent is 1.0:0.9:0.8), 0.6 g of modified polysiloxane type fluid Leveling agent, 0.5 gram of higher fatty acid glyceride antifoaming agent and 1.9 grams of aluminum stearate are added to 15 grams of hydroxyacrylic resin, 15 grams of fluorine-modified hydroxyacrylic resin and 25 grams of organosilicon-modified hydroxyacrylic resin, and then Add to 40 grams of butyl acetate solvent and stir for 1 hour, so that the two are fully mixed.

[0051] Preparation of component B: Dissolve 80 grams of HDI trimer in 20 grams of butyl acetate, stir well and mix well.

[0052] Before coating, the two components A and B are mixed in a ratio of 7:1, and ...

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Abstract

The invention discloses a solvent type double-component transparent anti-graffiti dirt-resistant anti-weathering coating and a preparation method thereof. The coating can be used for surfaces of decorative bricks, ceramic surfaces, mosaic layers, metals and color paint coatings of structures such as bus stops, sidewalks and public facilities for protecting long-life surfaces, prevents graffiti and dirt, and is easy to remove painted ink of marking pens, sprayed paints, crayon marks, pasted adlets, chewing gum, dust and scale, and the like.

Description

technical field [0001] The invention relates to a solvent-based two-component transparent anti-graffiti, anti-sticking and high weather resistance paint, which can be used for facing brick layers, ceramic surfaces, mosaic layers, metals, and colored paints of structures such as bus stop signs, sidewalks, and public transportation facilities. The coated surface is used as a long-life surface protection to prevent graffiti and dirt, making it easier for marker ink (or ink) on graffiti, paint on spray, crayon marks, small advertisements on stickers, chewing gum, dust, etc. clear. Background technique [0002] Graffiti, sticking everywhere, and discarded chewing gum are very troublesome problems for municipal departments in various countries. Developed countries such as Western Europe and the United States have to invest a lot of manpower and material resources every year in order to remove these dirt that hinders the city's appearance. economic expenditure. In our country, wi...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D5/08C09D5/16
Inventor 师华熊家锦王菁岳文华徐永祥杨振波李运德姜小刚陈立江吕化工张硕张重铮彭登轩商汉章单明正
Owner AVIC BIAM NEW MATERIALS TECH ENG
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