Antifouling self-cleaning coating

Abstract

The invention discloses an antifouling self-cleaning coating, and relates to the technical field, the antifouling self-cleaning coating comprises the following nano oxides: surface modified nano tin oxide, surface modified nano silicon dioxide, surface modified nano titanium dioxide, surface modified nano zinc oxide, surface modified nano zirconium oxide, surface modified nano magnesium oxide and surface modified nano aluminum oxide, the cleaning agent comprises an alcohol solvent and deionized water. The anti-fouling self-cleaning coating effectively solves the problems that a hydrophilic self-cleaning coating is poor in water resistance and needs to be cleaned through rainwater or active water washing, nano oxides with different particle sizes are combined, some oxide particles are subjected to hydrophobic modification, a micro-nano structure with the lotus effect is achieved in the anti-fouling self-cleaning coating, the super-amphiphobic characteristic is achieved, and the anti-fouling self-cleaning coating has the advantages of being good in anti-fouling performance, good in anti-fouling performance and good in anti-fouling performance. And the antifouling glass can be used in the industries of photovoltaic glass, building glass or automobile glass and the like, and has a better antifouling effect.

Description

Technical Field

[0001] The invention relates to the technical field, in particular to an antifouling self-cleaning coating. Background Art

[0002] With the extensive use of glass in new energy, automobile, construction and other industries, a layer of special coating is applied on the glass surface to make dust, oil, factory emissions, automobile emission particles, etc. difficult to adhere to the glass surface, or easier to clean. This makes the glass surface easy to keep clean and reduces the number of cleaning times. This kind of coating is the so-called "easy-to-clean coating" or "self-cleaning coating."

[0003] There are two types of self-cleaning paints on the market, one is hydrophilic self-cleaning and the other is hydrophobic self-cleaning. Hydrophilic self-cleaning utilizes the super hydrophilic properties of the paint surface. Rainwater or cleaning water wets the surface and then takes away the surface sediment. Hydrophobic self-cleaning utilizes the low surface energy of the paint. Dust and other sediments are more difficult to adsorb on the surface, thereby achieving a self-cleaning effect.

[0004] The most typical example of hydrophobic self-cleaning in nature is the "lotus effect". The water resistance of hydrophilic self-cleaning coatings is limited to a certain extent due to the presence of a large number of hydrophilic groups. Hydrophobic self-cleaning coatings are hydrophobic and have a certain oleophobicity, are resistant to the deposition of various sediments, and have a more obvious self-cleaning effect. They are especially suitable for large photovoltaic fields in deserts and neighboring areas, or rooftop fields of factories and mines with serious pollution, which are difficult to clean with water or in some occasions where water is scarce. The present invention, with the help of the structure of the "lotus effect", proposes a super-amphiphobic glass self-cleaning coating, which can be used in photovoltaic glass, architectural glass or automotive glass industries, to solve the problem that hydrophilic self-cleaning coatings have poor water resistance and require rainwater or active water washing to achieve cleaning. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the present invention provides an antifouling self-cleaning coating, which solves the technical problems raised in the above background.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the technical solution adopted by the present invention is: an antifouling self-cleaning coating, comprising the following nano oxides: surface-modified nano tin oxide, surface-modified nano silicon dioxide, surface-modified nano titanium dioxide, surface-modified nano zinc oxide, surface-modified nano zirconium oxide, surface-modified nano magnesium oxide, surface-modified nano aluminum oxide, and comprising an alcohol solvent and deionized water;

[0009] The nano oxide is prepared from the following components in parts by mass: 1 to 20 parts of surface modified nano tin oxide, 1 to 20 parts of surface modified nano silicon dioxide, 1 to 20 parts of surface modified nano titanium dioxide, 1 to 20 parts of surface modified nano zinc oxide, 1 to 20 parts of surface modified nano zirconium oxide, 1 to 20 parts of surface modified nano magnesium oxide, 1 to 20 parts of surface modified nano aluminum oxide, 5 to 30 parts of alcohol solvent and 5 to 90 parts of deionized water.

[0010] Preferably, the nano-oxide is prepared by a sol-gel method, or by dispersing and dissolving commercial nano-oxide powder, or by using commercial nano-dispersion liquid.

[0011] Preferably, the particle size of the nano-oxide is 2-100 nm.

[0012] Preferably, the self-cleaning coating is composed of nano-oxides of different particle sizes.

[0013] Preferably, the modification of the nano-oxide is carried out in a dispersed state.

[0014] Preferably, the modified substance of the nano-oxide is fluorine-containing silane or strongly hydrophobic alkyl silane;

[0015] Preferably, the self-cleaning coating is prepared by mixing modified nano-oxides of different particle sizes and unmodified nano-oxides;

[0016] Preferably, the self-cleaning coating can be dried naturally to form a film, or baked to form a film.

[0017] (III) Beneficial effects

[0018] The beneficial effects of the present invention are:

[0019] The antifouling self-cleaning coating effectively solves the problem that hydrophilic self-cleaning coatings have poor water resistance and require rainwater or active water washing to achieve cleaning. By combining nano-oxides of different particle sizes and performing hydrophobic modification on some oxide particles, a micro-nano structure of the "lotus leaf effect" is realized in the antifouling self-cleaning coating, super-amphiphobic properties are achieved, and self-cleaning characteristics are achieved. The coating can be used in industries such as photovoltaic glass, architectural glass or automotive glass, and has a good antifouling effect. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1

[0022] An antifouling self-cleaning coating comprises the following nano-oxides: surface-modified nano-tin oxide, surface-modified nano-silicon dioxide, surface-modified nano-titanium dioxide, surface-modified nano-zinc oxide, surface-modified nano-zirconia, surface-modified nano-magnesium oxide, and surface-modified nano-aluminum oxide, and also comprises alcohol solvents and deionized water. The mass fractions of the nano-oxides are: 1 part of surface-modified nano-tin oxide, 1 part of surface-modified nano-silicon dioxide, 1 part of surface-modified nano-titanium dioxide, 1 part of surface-modified nano-zirconia, 1 part of surface-modified nano-magnesium oxide, 1 part of surface-modified nano-aluminum oxide, 5 parts of alcohol solvents, and 5 parts of deionized water. The nano-oxides are prepared by a sol-gel method, or by dispersing and dissolving commercial nano-oxide powders, or by using commercial nano-dispersed liquids. The particle size of the compound is 2nm. The self-cleaning coating is composed of a combination of nano-oxides of different particle sizes. The modification of the nano-oxide is carried out in a dispersed state. The modified nano-oxide is fluorine-containing silane and strongly hydrophobic alkyl silane. By combining nano-oxides of different particle sizes and hydrophobically modifying some oxide particles, the micro-nano structure of the "lotus leaf effect" is realized in the anti-fouling self-cleaning coating, the super-amphiphobic property is realized, and the self-cleaning characteristic is realized. It can be used in industries such as photovoltaic glass, architectural glass or automotive glass, and has a good anti-fouling effect. It effectively solves the problem that the hydrophilic self-cleaning coating has poor water resistance and needs rainwater or active water washing to achieve cleaning. The preparation of the self-cleaning coating is formed by mixing modified nano-oxides of different particle sizes and unmodified nano-oxides through materials. The self-cleaning coating can be naturally dried to form a film.

[0023] Embodiment 2

[0024] An antifouling self-cleaning coating comprises the following nano-oxides: surface-modified nano-tin oxide, surface-modified nano-silicon dioxide, surface-modified nano-titanium dioxide, surface-modified nano-zinc oxide, surface-modified nano-zirconia, surface-modified nano-magnesium oxide, and surface-modified nano-aluminum oxide, and comprises alcohol solvents and deionized water, and the mass fractions of the nano-oxides are: 12 parts of surface-modified nano-tin oxide, 12 parts of surface-modified nano-silicon dioxide, 12 parts of surface-modified nano-titanium dioxide, 12 parts of surface-modified nano-zirconia, 12 parts of surface-modified nano-magnesium oxide, 12 parts of surface-modified nano-aluminum oxide, 20 parts of alcohol solvent, and 60 parts of deionized water. The nano-oxides are prepared by a sol-gel method, or prepared by dispersing and dissolving commercial nano-oxide powders, or by dispersing commercial nano-oxides. The liquid, the particle size of the nano oxide is 50nm, the self-cleaning coating is composed of nano oxides of different particle sizes, the modification of the nano oxide is carried out in a dispersed state, the modified material of the nano oxide is fluorine-containing silane and a strongly hydrophobic alkyl silane, the preparation of the self-cleaning coating is prepared by mixing the modified nano oxides of different particle sizes and the unmodified nano oxides through materials, the self-cleaning coating can be baked into a film, and the micro-nano structure of the "lotus leaf effect" is realized in the anti-fouling self-cleaning coating by combining nano oxides of different particle sizes and performing hydrophobic modification on some oxide particles, realizing super-amphiphobic characteristics, and realizing self-cleaning characteristics, and the anti-fouling self-cleaning coating can be used in industries such as photovoltaic glass, architectural glass or automotive glass, and has a good anti-fouling effect, and effectively solves the problem that the hydrophilic self-cleaning coating has poor water resistance and needs rainwater or active water washing to achieve cleaning.

[0025] Embodiment 3

[0026] An antifouling self-cleaning paint comprises the following nano-oxides: surface-modified nano-tin oxide, surface-modified nano-silicon dioxide, surface-modified nano-titanium dioxide, surface-modified nano-zinc oxide, surface-modified nano-zirconia, surface-modified nano-magnesium oxide, and surface-modified nano-aluminum oxide, and also comprises alcohol solvents and deionized water. The mass fractions of the nano-oxides are: 1 to 20 parts of surface-modified nano-tin oxide, 20 parts of surface-modified nano-silicon dioxide, 20 parts of surface-modified nano-titanium dioxide, 20 parts of surface-modified nano-zirconia, 20 parts of surface-modified nano-zirconia, 20 parts of surface-modified nano-magnesium oxide, 20 parts of surface-modified nano-aluminum oxide, 30 parts of alcohol solvents, and 90 parts of deionized water. The nano-oxides are prepared by a sol-gel method, or prepared by dispersing and dissolving commercial nano-oxide powders, or by dispersing and dissolving commercial nano-oxide powders. The dispersion has a particle size of 100nm. The self-cleaning coating is composed of nano-oxides of different particle sizes. The modification of the nano-oxide is carried out in a dispersed state. The modified material of the nano-oxide is fluorine-containing silane and strongly hydrophobic alkyl silane. The preparation of the self-cleaning coating is to mix the modified nano-oxides of different particle sizes and the unmodified nano-oxides through materials. The self-cleaning coating can be baked into a film. By combining nano-oxides of different particle sizes and hydrophobic modification of some oxide particles, a micro-nano structure of a "lotus leaf effect" is realized in the anti-fouling self-cleaning coating, super-amphiphobic characteristics are realized, and self-cleaning characteristics are realized. The coating can be used in industries such as photovoltaic glass, architectural glass or automotive glass, and has a good anti-fouling effect, effectively solving the problem that the hydrophilic self-cleaning coating has poor water resistance and needs rainwater or active water washing to achieve cleaning.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antifouling self-cleaning coating, characterized in that: The nano-oxides include the following: surface-modified nano-tin oxide, surface-modified nano-silicon dioxide, surface-modified nano-titanium dioxide, surface-modified nano-zinc oxide, surface-modified nano-zirconium oxide, surface-modified nano-magnesium oxide, surface-modified nano-aluminum oxide, and include alcohol solvents and deionized water.

2. The antifouling self-cleaning coating according to claim 1, characterized in that: The nano oxide is prepared from the following components in parts by mass: 1 to 20 parts of surface modified nano tin oxide, 1 to 20 parts of surface modified nano silicon dioxide, 1 to 20 parts of surface modified nano titanium dioxide, 1 to 20 parts of surface modified nano zinc oxide, 1 to 20 parts of surface modified nano zirconium oxide, 1 to 20 parts of surface modified nano magnesium oxide, 1 to 20 parts of surface modified nano aluminum oxide, 5 to 30 parts of alcohol solvent and 5 to 90 parts of deionized water.

3. The antifouling self-cleaning coating according to claim 1, characterized in that: The nano-oxide is prepared by a sol-gel method, or by dispersing and dissolving commercial nano-oxide powder, or by using commercial nano-dispersed liquid.

4. The antifouling self-cleaning coating according to claim 1, characterized in that: The particle size of the nano oxide is 2-100 nm.

5. The antifouling self-cleaning coating according to claim 1, characterized in that: The self-cleaning coating is composed of nano-oxides with different particle sizes.

6. The antifouling self-cleaning coating according to claim 1, characterized in that: The modification of the nano-oxide is carried out in a dispersed state.

7. The antifouling self-cleaning coating according to claim 1, characterized in that: The modified substance of the nano oxide is fluorine-containing silane or strongly hydrophobic alkyl silane.

8. The antifouling self-cleaning coating according to claim 1, characterized in that: The self-cleaning coating is prepared by mixing modified nano oxides of different particle sizes and unmodified nano oxides.

9. The antifouling self-cleaning coating according to claim 1, characterized in that: The self-cleaning coating can be naturally dried to form a film, or baked to form a film.