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
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[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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