Self-cleaning outer wall coating structure with hydrophilic and hydrophobic functions

Abstract

The utility model relates to the technical field of outer wall coating, and discloses a self-cleaning outer wall coating structure with hydrophilic and hydrophobic functions, which comprises seal primer and a second coating, the outer surface of the seal primer is coated with modeling paint, and the other end of the modeling paint far away from the seal primer is coated with a first coating. A hydrophilic and hydrophobic assembly is fixedly installed on the other face, away from the modeling coating, of the first coating. According to the self-cleaning outer wall coating structure with the hydrophilic and hydrophobic functions, water can be adsorbed to form a water film when water exists, the nanoscale hydrophobic protruding blocks promote water drops to roll, dust and water-soluble and partial oily stains can be efficiently removed through cooperation of the water film and the nanoscale hydrophobic protruding blocks, the multiple sets of hydrophilic and hydrophobic assemblies distributed at equal intervals evenly cover an outer wall, the self-cleaning uniformity and stability are greatly improved, and the self-cleaning effect is good. And the fluorine-containing polymer coating has excellent weather resistance, chemical corrosion resistance and low surface energy, the hydrophobic effect is enhanced, water drops are assisted to rapidly slide to take away dirt, and the self-cleaning capacity is enhanced in an all-around mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of outer wall painting, in particular to a self-cleaning outer wall painting structure with hydrophilic and hydrophobic functions. BACKGROUND

[0002] With the acceleration of urbanization process, the appearance of buildings becomes an important part of urban landscape, keeping the outer wall clean and beautiful can not only improve the image of the building itself, but also has an important influence on the overall beauty of the city. Whether it is a commercial building, a residence or a public facility, it is hoped that the outer wall can maintain cleanliness for a long time, reduce the adhesion of dirt, dust, algae and other pollutants. If the outer wall of a large shopping center is covered with stains, it will leave a bad impression on customers and affect business appeal; and the unclean outer facade of high-end residences will also reduce the quality of living.

[0003] Chinese utility model patent publication No. CN 213449233 U discloses a self-cleaning outer wall paint coating structure. The self-cleaning outer wall paint coating structure, through the cooperation of the adhesive layer, the groove and the convex strip, supports the adhesive layer to a certain extent, thereby improving the strength of the mortar adhesive layer, the adhesion and the structural strength of the adsorption, and further avoiding the problem of loosening and falling off. At the same time, the adhesive layer adopts a latex paint base wall layer, a glass fiber grid layer and a latex paint fixed layer, which further improves the fixation and prevents falling off. However, during use, although the loosening problem can be solved, it is inconvenient to make the water droplets quickly slide down when there is a lot of rain, and it is inconvenient to remove the stains on the wall surface through water droplets, which is inconvenient to improve the self-cleaning and hydrophobic ability. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a self-cleaning outer wall painting structure with hydrophilic and hydrophobic functions, which can effectively solve the problem of loosening and falling off in the prior art, and is inconvenient to make the water droplets quickly slide down when there is a lot of rain, and it is inconvenient to remove the stains on the wall surface through water droplets, which is inconvenient to improve the self-cleaning and hydrophobic ability.

[0005] The technical scheme adopted by the utility model is: a self-cleaning outer wall painting structure with hydrophilic and hydrophobic functions, comprising a closed primer and a second coating layer, the outer surface of the closed primer is coated with a modeling paint, the other end of the modeling paint away from the closed primer is coated with a first coating layer, and the other side of the first coating layer away from the modeling paint is fixedly installed with a hydrophilic and hydrophobic component.

[0006] Preferably, the closed primer is a synthetic resin emulsion alkali-resistant closed primer, and the modeling paint is a synthetic resin emulsion texture modeling paint.

[0007] By the technical scheme, the closed primer is used as the alkali-resistant closed primer of the synthetic resin emulsion, can effectively seal the alkaline substances of the base, prevent the alkaline substances from seeping out to damage the subsequent coating, enhance the adhesion of the entire coating system and the base, and provide a stable foundation for the subsequent coating, and the modeling coating is the synthetic resin emulsion texture modeling coating, can give the external wall rich decorative effects, meet different architectural styles and design requirements, and improve the aesthetic degree and uniqueness of the building appearance.

[0008] Preferably, the hydrophilic-hydrophobic assembly comprises a mounting seat, a connecting seat is fixedly installed at the other end of the mounting seat away from the first coating layer, and the connecting seat is flush with the first coating layer.

[0009] By the technical scheme, the mounting seat provides a stable mounting foundation for the connecting seat, ensures that the connecting seat can be firmly attached to the first coating layer, and does not easily displace or fall off in a long-term use process. The design that the connecting seat is flush with the first coating layer makes the entire external wall surface remain smooth and flat, does not affect the overall aesthetic degree and decorative effect, and can ensure that the subsequent coating can be uniformly covered when being coated, so that problems such as uneven thickness and poor leveling caused by the protrusions or depressions of the hydrophilic-hydrophobic assembly are avoided, and a high-quality, stable-performance self-cleaning external wall coating system is formed.

[0010] Preferably, a hydrophilic groove is formed in the inner surface of the connecting seat, a hydrophobic protrusion is fixedly installed in the inner surface of the hydrophilic groove, and the hydrophobic protrusion is a nano-level convex structure.

[0011] By the technical scheme, the hydrophilic groove and the hydrophobic protrusion in the inner surface of the connecting seat are combined, in a water environment, the hydrophilic groove can adsorb water to form a water film, and the hydrophobic protrusion can make water droplets roll on the surface thereof, and the two can work together to make the water flow carry away various types of dirt, including dust, water-soluble stains and part of oily stains.

[0012] Preferably, a plurality of the hydrophilic-hydrophobic assemblies are provided, the other ends of the plurality of hydrophilic-hydrophobic assemblies are connected to the second coating structure, and the plurality of hydrophilic-hydrophobic assemblies are equidistantly distributed.

[0013] By the technical scheme, the plurality of equidistantly distributed hydrophilic-hydrophobic assemblies can comprehensively cover the external wall surface, greatly improve the uniformity and stability of the self-cleaning effect, and effectively reduce the adhesion and accumulation of dirt on the external wall surface.

[0014] Preferably, the second coating layer comprises a fluorine-containing polymer coating layer, an intermediate layer and a bottom layer are coated on the other side of the fluorine-containing polymer coating layer away from the first coating layer, and the intermediate layer is an organic silicon modified intermediate layer.

[0015] By the technical scheme, the fluorine-containing polymer coating has excellent weather resistance, chemical corrosion resistance and low surface energy characteristics, can effectively resist the erosion of external environmental factors such as ultraviolet rays, acid rain and the like, and further enhances the hydrophobic performance of the coating, so that water droplets can more easily roll and slide on the surface, taking away dirt, the silicone modified intermediate layer can improve the flexibility and adhesion of the coating, enhance the bonding force between the entire second coating, the first coating and the hydrophilic and hydrophobic assembly, reduce the occurrence of problems such as cracking and peeling of the coating, and prolong the service life of the coating system, and the bottom layer can provide additional protection and support for the entire second coating, and improve the overall performance of the coating system.

[0016] Preferably, the first coating is coated with a second coating away from the other side of the modeling paint, and the first coating, the hydrophilic and hydrophobic assembly and the second coating are of an integrated structure.

[0017] By the technical scheme, the integrated structure can eliminate the interface defects between the layers, improve the compactness and continuity of the entire coating system, avoid the problems of moisture penetration and dirt accumulation caused by poor interlayer bonding, significantly enhance the durability and persistence of the self-cleaning performance of the coating system, reduce the maintenance and recoating work caused by layering of the coating, and reduce the long-term maintenance cost.

[0018] Compared with the prior art, the self-cleaning outer wall coating structure with hydrophilic and hydrophobic functions has the following beneficial effects:

[0019] 1. The self-cleaning outer wall coating structure with hydrophilic and hydrophobic functions, the hydrophilic groove can absorb water to form a water film when there is water, and the nanoscale hydrophobic bumps promote the rolling of water droplets, and the two can cooperate to efficiently remove dust, water-soluble and part of oily stains, a plurality of groups of equidistantly distributed hydrophilic and hydrophobic assemblies uniformly cover the outer wall, greatly improving the uniformity and stability of self-cleaning, significantly reducing dirt adhesion, the fluorine-containing polymer coating has excellent weather resistance, chemical corrosion resistance and low surface energy, and the hydrophobic effect is strengthened, helping water droplets to quickly slide and take away dirt, and the self-cleaning ability is enhanced in all directions.

[0020] 2. The self-cleaning outer wall coating structure with hydrophilic and hydrophobic functions, the synthetic resin emulsion texture modeling paint as the modeling paint can shape rich textures and textures, meet the needs of various architectural styles and design creativity, add unique charm and aesthetic degree to the outer wall of the building, and improve the overall image and quality of the building. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the split structure of the second coating of this utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the hydrophilic and hydrophobic component of this utility model;

[0025] Figure 5 This is a schematic diagram of the disassembled structure of the hydrophilic and hydrophobic component of this utility model.

[0026] The components are: 1. Sealing primer; 2. Molding coating; 3. First coating; 4. Hydrophilic and hydrophobic components; 401. Mounting base; 402. Connecting base; 403. Hydrophilic groove; 404. Hydrophobic protrusion; 5. Second coating; 501. Fluoropolymer coating; 502. Intermediate layer; 503. Undercoat. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: As Figures 1-5 As shown, the present invention provides a self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions, including a sealing primer 1 and a second coating 5. The outer surface of the sealing primer 1 is coated with a shaping coating 2. The other end of the shaping coating 2 away from the sealing primer 1 is coated with a first coating 3. A hydrophilic and hydrophobic component 4 is fixedly installed on the other side of the first coating 3 away from the shaping coating 2.

[0029] Specifically, the sealing primer 1 is a synthetic resin emulsion alkali-resistant sealing primer, and the molding coating 2 is a synthetic resin emulsion textured molding coating. The advantage is that the sealing primer 1, as a synthetic resin emulsion alkali-resistant sealing primer, can effectively seal the alkaline substances in the substrate, prevent the alkaline substances from seeping out and damaging the subsequent coatings, enhance the adhesion between the entire coating system and the substrate, and provide a stable foundation for the subsequent coatings. The molding coating 2, which is a synthetic resin emulsion textured molding coating, can give the exterior wall a rich decorative effect, meet different architectural styles and design requirements, and enhance the aesthetics and uniqueness of the building's appearance.

[0030] Specifically, the hydrophilic-hydrophobic assembly 4 comprises a mounting seat 401, and a connecting seat 402 is fixedly installed at the other end of the mounting seat 401 away from the first coating layer 3, and the connecting seat 402 is flush with the first coating layer 3, which has the advantages that the mounting seat 401 provides a stable mounting basis for the connecting seat 402, and ensures that the connecting seat 402 can be firmly attached to the first coating layer 3 and is not prone to displacement or falling off in the long-term use process. The design that the connecting seat 402 is flush with the first coating layer 3 makes the entire outer wall surface remain flat and smooth, does not affect the overall aesthetic and decorative effect, and can ensure that the subsequent coating can be uniformly covered when being coated, so that problems such as uneven thickness and poor leveling caused by the protrusions or depressions of the hydrophilic-hydrophobic assembly 4 do not occur, which is conducive to forming a high-quality, stable performance self-cleaning exterior wall coating system.

[0031] Specifically, a hydrophilic groove 403 is formed in the inner surface of the connecting seat 402, and a hydrophobic protrusion 404 is fixedly installed in the inner surface of the hydrophilic groove 403, and the hydrophobic protrusion 404 is a nano-level convex structure, which has the advantages that the combination of the hydrophilic groove 403 and the hydrophobic protrusion 404 on the inner surface of the connecting seat 402 can form a water film by adsorbing water in a water environment, and the hydrophobic protrusion 404 can promote the rolling of water droplets on its surface, so that the water flow can carry away various types of dirt, including dust, water-soluble stains and part of oily stains.

[0032] Embodiment two: as shown in the figure, which is an improvement on the previous embodiment. Figures 2-5

[0033] Specifically, the hydrophilic-hydrophobic assembly 4 is provided with a plurality of same assemblies, the other ends of the plurality of hydrophilic-hydrophobic assemblies 4 are arranged in the structure of the second coating layer 5, and the plurality of hydrophilic-hydrophobic assemblies 4 are equidistantly distributed, which has the advantages that the plurality of equidistantly distributed hydrophilic-hydrophobic assemblies 4 can comprehensively cover the outer wall surface, greatly improving the uniformity and stability of the self-cleaning effect, and effectively reducing the adhesion and accumulation of dirt on the outer wall surface.

[0034] Specifically, the second coating layer 5 comprises a fluorine-containing polymer coating layer 501, and an intermediate layer 502 and a bottom layer 503 are coated on the other side of the fluorine-containing polymer coating layer 501 away from the first coating layer 3, and the intermediate layer 502 is a silicone-modified intermediate layer, which has the advantages that the fluorine-containing polymer coating layer 501 has excellent weather resistance, chemical corrosion resistance and low surface energy characteristics, can effectively resist the erosion of external environmental factors such as ultraviolet rays and acid rain, and further enhances the hydrophobic performance of the coating layer, so that water droplets can more easily roll and slide on the surface and carry away dirt. The silicone-modified intermediate layer 502 can improve the flexibility and adhesion of the coating layer, enhance the bonding force between the entire second coating layer 5 and the first coating layer 3 and the hydrophilic-hydrophobic assembly 4, reduce the occurrence of problems such as cracking and peeling of the coating layer, prolong the service life of the coating system, and the bottom layer 503 can provide additional protection and support for the entire second coating layer 5, and improve the overall performance of the coating system. ​

[0035] Specifically, the first coating layer 3 is coated with the second coating layer 5 on the other side away from the profiled coating 2, and the first coating layer 3, the hydrophilic-hydrophobic assembly 4 and the second coating layer 5 are of an integrated structure, which has the advantage that the integrated structure can eliminate the interface defects between the layers, improve the compactness and continuity of the entire coating system, avoid the problems of water penetration and dirt accumulation caused by the loose interlayer combination, significantly enhance the durability and the persistence of the self-cleaning performance of the coating system, reduce the maintenance and recoating work caused by the delamination of the coating layer, and reduce the long-term maintenance cost.

[0036] Working principle: in use, the closed primer 1 as synthetic resin emulsion alkali-resistant closed primer, can effectively seal the alkaline substances of the substrate, prevent the alkaline substances from seeping out to cause damage to the subsequent coating, enhance the adhesion of the entire coating system and the substrate, provide a stable foundation for the subsequent coating, modeling paint 2 adopts synthetic resin emulsion texture modeling paint, can give the exterior wall rich decorative effect, meet different architectural style and design requirements, improve the beauty and uniqueness of the appearance of the building, the mounting seat 401 provides a stable mounting foundation for the connecting seat 402, ensures that the connecting seat 402 can be firmly attached to the first coating 3, and the connecting seat 402 is flush with the first coating 3, which makes the entire exterior wall surface smooth and flat, neither affects the overall aesthetic and decorative effect, nor can guarantee that the subsequent coating can be evenly covered when coating, and will not cause problems such as uneven thickness and poor leveling due to the protrusions or depressions of the hydrophilic and hydrophobic components 4, which is beneficial to form a high-quality, stable self-cleaning exterior wall coating system, the combination of the hydrophilic groove 403 and the hydrophobic bump 404 on the inner surface of the connecting seat 402 can form a water film in the presence of water, and the hydrophobic bump 404 can promote the rolling of water droplets on its surface, and the two work together to make the water flow carry away various types of dirt, including dust, water-soluble stains and some oily stains, multiple equidistantly distributed hydrophilic and hydrophobic components 4 can fully cover the surface of the exterior wall, greatly improving the uniformity and stability of the self-cleaning effect, effectively reducing the adhesion and accumulation of dirt on the surface of the exterior wall, the fluorine-containing polymer coating 501 has excellent weather resistance, chemical corrosion resistance and low surface energy characteristics, which can effectively resist the erosion of external environmental factors such as ultraviolet rays and acid rain, and further enhance the hydrophobic performance of the coating, making it easier for water droplets to roll and slide on the surface, carrying away dirt, the silicone-modified intermediate layer 502 can improve the flexibility and adhesion of the coating, enhance the bonding force between the entire second coating 5 and the first coating 3 and the hydrophilic and hydrophobic components 4, reduce the occurrence of problems such as coating cracking and peeling, prolong the service life of the coating system, and the bottom layer 503 can provide additional protection and support for the entire second coating 5, improve the overall performance of the coating system, and the integrated structure can eliminate the interface defects between the layers, improve the density and continuity of the entire coating system, avoid the problems of water penetration and dirt accumulation caused by loose interlayer combination, significantly enhance the durability and persistence of the self-cleaning performance of the coating system, reduce the maintenance and re-coating work caused by layering, and reduce the long-term maintenance cost.

[0037] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions, comprising a sealing primer (1) and a second coating layer (5), characterized in that: The outer surface of the sealing primer (1) is coated with a shaping coating (2), and the other end of the shaping coating (2) away from the sealing primer (1) is coated with a first coating (3). A hydrophilic and hydrophobic component (4) is fixedly installed on the other side of the first coating (3) away from the shaping coating (2).

2. The self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions according to claim 1, characterized in that: The sealing primer (1) is a synthetic resin emulsion alkali-resistant sealing primer, and the styling coating (2) is a synthetic resin emulsion textured styling coating.

3. The self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions according to claim 1, characterized in that: The hydrophilic and hydrophobic component (4) includes a mounting base (401), and a connecting base (402) is fixedly installed at the other end of the mounting base (401) away from the first coating (3). The connecting base (402) is flush with the first coating (3).

4. The self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions according to claim 3, characterized in that: The inner surface of the connector (402) is provided with a hydrophilic groove (403), and a hydrophobic bump (404) is fixedly installed on the inner surface of the hydrophilic groove (403). The hydrophobic bump (404) is a nanoscale convex structure.

5. A self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions according to claim 4, characterized in that: The hydrophilic and hydrophobic components (4) are provided in multiples, and the other end of the multiple hydrophilic and hydrophobic components (4) is connected to the structure of the second coating (5) and the multiple hydrophilic and hydrophobic components (4) are distributed at equal intervals.

6. The self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions according to claim 4, characterized in that: The second coating (5) includes a fluoropolymer coating (501), on the side of the fluoropolymer coating (501) away from the first coating (3) coated with an intermediate layer (502) and an underlayer (503), wherein the intermediate layer (502) is an organosilicon-modified intermediate layer.

7. A self-cleaning exterior wall coating structure with hydrophilic and hydrophobic functions according to claim 1, characterized in that: The first coating (3) is coated with a second coating (5) on the side away from the styling coating (2). The first coating (3), the hydrophilic and hydrophobic component (4), and the second coating (5) are an integral structure.

Images