Water-based one-component environment-friendly anti-doodling coating and preparation method and coating film thereof

An anti-graffiti, one-component technology, applied in the direction of coating, etc., can solve the problems of poor anti-graffiti durability, wax emulsion coating is easy to be damaged, etc., achieve excellent environmental protection, convenient construction, and improve the anti-graffiti of the paint film persistent effect

Inactive Publication Date: 2021-10-15
德爱威(中国)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical application, because the wax emulsion coating is easily destroyed, its anti-graffiti durability is not good

Method used

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  • Water-based one-component environment-friendly anti-doodling coating and preparation method and coating film thereof
  • Water-based one-component environment-friendly anti-doodling coating and preparation method and coating film thereof
  • Water-based one-component environment-friendly anti-doodling coating and preparation method and coating film thereof

Examples

Experimental program
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preparation example Construction

[0037] According to the present invention, preferably, the preparation method of the self-crosslinking acrylic emulsion comprises: modifying the pure acrylic emulsion with a silane coupling agent to obtain the self-crosslinking acrylic emulsion.

[0038] According to the present invention, preferably, the amount of the silane coupling agent used is 0.5%-4% of the mass of the pure acrylic emulsion, preferably 2%.

[0039] According to the present invention, preferably, the silane coupling agent is vinyltrimethoxysilane, γ-(methacryloxy)propyltrimethoxysilane and γ-(methacryloxy)propyltrimethoxysilane and γ-(methacryloxy)propyltrimethoxysilane at least one of isopropoxysilanes.

[0040] According to the present invention, preferably, the superhydrophobic acrylic emulsion is an anionic acrylic emulsion.

[0041] According to the present invention, preferably, the weight ratio of the self-crosslinking acrylic emulsion to the superhydrophobic acrylic emulsion is (2-6):(1-3), prefe...

Embodiment 1

[0060] The present embodiment provides a water-based one-component environment-friendly anti-graffiti coating, the anti-graffiti coating comprises the following components: 40 parts of self-crosslinking acrylic emulsion, 40 parts of superhydrophobic acrylic emulsion, 7 parts of film-forming agent, rich in C 10 Ethoxylated iso-C 9- C 11 0.1 part of mineral oil defoamer compounded with a cross-linked polymer of alcohol and epichlorohydrin, 0.1 part of organic amine pH regulator, 0.25 part of alkali-swellable thickener, 0.4 part of bactericide and antifungal agent, and 12.15 parts of water.

Embodiment 2

[0062] The present embodiment provides a water-based one-component environment-friendly anti-graffiti coating, the anti-graffiti coating comprises the following components: 50 parts of self-crosslinking acrylic emulsion, 30 parts of superhydrophobic acrylic emulsion, 9 parts of film-forming agent, rich in C 10 Ethoxylated iso-C 9 -C 11 0.1 part of mineral oil defoamer compounded with a cross-linked polymer of alcohol and epichlorohydrin, 0.1 part of organic amine pH regulator, 0.25 part of alkali-swellable thickener, 0.4 part of bactericidal and antifungal agent, and 10.15 parts of water.

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Abstract

The invention belongs to the technical field of decorative coatings, and discloses a water-based one-component environment-friendly anti-doodling coating and a preparation method and a coating film thereof. The anti-doodling coating comprises the following components: a self-crosslinking acrylic emulsion, a super-hydrophobic acrylic emulsion, a film-forming agent, an auxiliary agent and water. The water-based one-component environment-friendly anti-doodling coating has excellent stain resistance and environment protection.

Description

technical field [0001] The invention belongs to the technical field of decorative coatings, and in particular relates to a water-based one-component environmental protection anti-graffiti coating, a preparation method and a coating film thereof. Background technique [0002] Anti-graffiti coatings can be used in children's rooms, conference rooms, classrooms and other places, endowing the walls with the function of repeated writing and erasing, and can provide excellent stain resistance. There are mainly two current implementation methods: (1) two-component anti-graffiti coating, which is implemented by selecting a hydroxyl-containing acrylic emulsion and a curing agent containing NCO groups. The construction process of this type of product is relatively complicated, and the curing agent needs to be prepared with an organic solvent, and the VOC content is high, which does not meet the environmental protection requirements. (2) A one-component anti-graffiti coating that intr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00
CPCC09D133/00C08L2205/025C08L33/00
Inventor 王燕刘循超张麟敏潘秀伟
Owner 德爱威(中国)有限公司
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