Stain-resistant self-cleaning protective coating

Abstract

The utility model discloses a stain-resistant self-cleaning protective coating which comprises a carrier layer, a self-cleaning layer, a filler layer and an anti-precipitation layer which are sequentially arranged from inside to outside, and a mixed solvent is arranged between the self-cleaning layer and the filler layer. The carrier layer is at least one of epoxy resin, acrylic resin and polyurethane resin, the thickness of the carrier layer is 3.4 nanometers, the self-cleaning layer is a mixture of titanium dioxide and polyethyleneimine, and the thickness of the self-cleaning layer is 0.8 nanometer. The utility model relates to the technical field of coatings. According to the stain-resistant self-cleaning protective coating disclosed by the utility model, through the integral structure arrangement, the coating has excellent stain-resistant performance and self-cleaning performance when being applied, so that the application effect of the coating is effectively ensured, and the limitation of integral application is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coatings, in particular to a stain-resistant self-cleaning protective coating. Background Art

[0002] Paint refers to a type of liquid or solid material that can form a thin film on the surface of an object under certain conditions to provide protection, decoration or other special functions (insulation, rust prevention, mildew prevention, heat resistance, etc.). Because most early paints used vegetable oil as the main raw material, they are also called paints. Now synthetic resins have replaced vegetable oils, so they are called paints;

[0003] However, when the coatings in the traditional technology are used in high oil and high dust environment, the overall performance will be significantly reduced due to the adhesion of surface dirt, which makes the overall application have certain limitations.

[0004] To this end, the utility model provides a stain-resistant self-cleaning protective coating to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a stain-resistant self-cleaning protective coating to solve the above-mentioned problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical scheme: a stain-resistant self-cleaning protective coating, including a carrier layer, a self-cleaning layer, a filler layer and an anti-precipitation layer, wherein the carrier layer, the self-cleaning layer, the filler layer and the anti-precipitation layer are arranged in sequence from the inside to the outside, and a mixed solvent is arranged between the self-cleaning layer and the filler layer.

[0007] Preferably, the carrier layer is at least one of epoxy resin, acrylic resin and polyurethane resin, and the thickness of the carrier layer is 3.4 nanometers.

[0008] Preferably, the self-cleaning layer is a mixture of titanium dioxide and polyethyleneimine, and the thickness of the self-cleaning layer is 0.8 nanometers.

[0009] Preferably, the mixed solvent is propylene glycol isocyanate or water.

[0010] Preferably, the filler layer is at least one of calcium carbonate, talc, silicon dioxide and aluminum hydroxide, and the thickness of the filler layer is 2.8 nanometers.

[0011] Preferably, the anti-precipitation layer is at least one of sodium sulfate and lithopone, and the thickness of the anti-precipitation layer is 0.09 nanometers.

[0012] Beneficial Effects

[0013] The utility model provides a kind of anti-fouling self-cleaning protective coating. Compared with the prior art, it has the following advantages:

[0014] Beneficial effects:

[0015] The anti-fouling self-cleaning protective coating has excellent anti-fouling and self-cleaning properties when used due to the overall structural setting, which effectively ensures the application effect of the coating and reduces the limitations of the overall application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model.

[0017] In the figure, 1 is the carrier layer; 2 is the self-cleaning layer; 3 is the mixed solvent; 4 is the filler layer; 5 is the anti-precipitation layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1:

[0020] Please see Figure 1 , a stain-resistant self-cleaning protective coating, comprising a carrier layer 1, a self-cleaning layer 2, a filler layer 4 and an anti-precipitation layer 5, wherein the carrier layer 1, the self-cleaning layer 2, the filler layer 4 and the anti-precipitation layer 5 are arranged in sequence from the inside to the outside, and a mixed solvent 3 is arranged between the self-cleaning layer 2 and the filler layer 4;

[0021] In this embodiment, the carrier layer 1 is at least one of epoxy resin, acrylic resin, and polyurethane resin, and the thickness of the carrier layer 1 is 3.4 nanometers;

[0022] In more detail, (1): Epoxy resin is a high molecular polymer with a molecular formula of (C11H12O3)n. It is a general term for a class of polymers containing two or more epoxy groups in the molecule. It is a condensation product of epichlorohydrin and bisphenol A or polyols. Due to the chemical activity of the epoxy group, it can be opened with a variety of compounds containing active hydrogen, and cured and cross-linked to form a network structure. Therefore, it is a thermosetting resin, and epoxy resin can form a chemical bond with the substrate to improve the adhesion and durability of the coating, making the coating tougher. At the same time, epoxy resin has good corrosion resistance, which can effectively prevent the coating from rusting and corrosion during use, and can provide the hardness and wear resistance required by the coating, making the coating more durable;

[0023] (2): Acrylic resin is a high molecular polymer obtained by polymerization of unsaturated acrylic monomers. Acrylic resin has many excellent properties. It can increase the hardness, toughness and impact resistance of the coating, making it more durable. Acrylic resin has good weather resistance and can maintain good performance for a long time in outdoor environments. It can also improve the leveling of the coating and reduce its shrinkage.

[0024] (3): Polyurethane resin is a synthetic resin obtained by the condensation reaction of polymer polyols and isocyanates (such as MDI). It has good adhesion, can enhance the adhesion between the coating and the substrate, and can provide the coating with certain wear resistance and corrosion resistance. At the same time, it has good flexibility and elasticity, giving it good tensile strength and elongation.

[0025] In this embodiment, the self-cleaning layer 2 is a mixture of titanium dioxide and polyethyleneimine, and the thickness of the self-cleaning layer 2 is 0.8 nanometers;

[0026] In more detail, (1): Titanium dioxide is an inorganic compound with the chemical formula TiO2. It is a white solid or powdered amphoteric oxide with a molecular weight of 79.866. It is non-toxic, has the best opacity, the best whiteness and brightness. The tiny particles of titanium dioxide can produce a photocatalytic effect under the irradiation of light and can effectively remove pollutants;

[0027] (2): Polyethyleneimine is a water-soluble high molecular organic compound with a chemical formula of C3H6O3N. It is a polymer with good solubility, biocompatibility and plasticity, and can increase the hardness, waterproof and mildew-proof properties of the coating.

[0028] In this embodiment, the mixed solvent 3 is propylene glycol isocyanate or water;

[0029] Furthermore, propylene glycol isocyanate is an organic compound with the chemical formula C4H8N2O2. It is the product of the reaction of propylene glycol and isocyanic acid and has excellent solubility and migration properties;

[0030] In this embodiment, the filler layer 4 is at least one of calcium carbonate, talc, silicon dioxide and aluminum hydroxide, and the thickness of the filler layer 4 is 2.8 nanometers;

[0031] Furthermore, (1): calcium carbonate particles are small and uniform, with good filling and covering properties;

[0032] (2): Talc is an inorganic pigment with good hiding and filling properties, which can improve the weather resistance and abrasion resistance of the coating;

[0033] (3): Silica has good fluidity and solubility, which can improve the leveling of the coating and reduce the viscosity of the coating;

[0034] (4): Aluminum hydroxide has good hydrophilicity and hygroscopicity, and can absorb moisture in the air, thereby improving the performance of the coating;

[0035] In this embodiment, the anti-precipitation layer 5 is at least one of sodium sulfate and lithopone, and the thickness of the anti-precipitation layer 5 is 0.09 nanometers;

[0036] In more detail, (1): Sodium sulfate is a salt compound with good anti-precipitation properties, which can effectively prevent the coating from precipitating during storage and use;

[0037] (2): Zinc barium white is an inorganic pigment with good hiding and filling properties, which can effectively prevent the paint from settling during storage and use.

[0038] Embodiment 2:

[0039] This embodiment provides a technical solution based on the first embodiment: in this embodiment, the carrier layer 1 is epoxy resin;

[0040] In this embodiment, the self-cleaning layer 2 is a mixture of titanium dioxide and polyethyleneimine, the thickness of the self-cleaning layer 2 is 0.8 nanometers, and it is composed of the following raw materials in parts by weight: 50% titanium dioxide and 50% polyethyleneimine;

[0041] In this embodiment, the mixed solvent is water;

[0042] In this embodiment, the filler is calcium carbonate and talcum powder, and is composed of the following raw materials in parts by weight: 23.4% calcium carbonate and the rest talcum powder;

[0043] In this embodiment, the anti-precipitation layer 5 is sodium sulfate and lithopone, and is composed of the following raw materials in parts by weight: 36.45% sodium sulfate and the rest lithopone.

[0044] Embodiment three:

[0045] This embodiment provides a technical solution based on the first embodiment: In this embodiment, the self-cleaning layer 2 is a mixture of titanium dioxide and polyethyleneimine, and is composed of the following raw materials in parts by weight: 60% titanium dioxide and 40% polyethyleneimine;

[0046] In this embodiment, the mixed solvent is propylene glycol isocyanate;

[0047] In this embodiment, the filler is talcum powder, silicon dioxide and aluminum hydroxide, and is composed of the following raw materials in parts by weight: 27% talcum powder, 43.64% silicon dioxide, and the rest aluminum hydroxide;

[0048] In this embodiment, the anti-precipitation layer 5 is sodium sulfate.

[0049] Embodiment 4:

[0050] This embodiment provides a technical solution based on the first embodiment: In this embodiment, the carrier layer 1 is epoxy resin and polyurethane resin, and is composed of the following raw materials in parts by weight: 36% epoxy resin and the rest polyurethane resin;

[0051] In this embodiment, the self-cleaning layer 2 is a mixture of titanium dioxide and polyethyleneimine, and is composed of the following raw materials in parts by weight: 18% titanium dioxide and the rest polyethyleneimine;

[0052] In this embodiment, the mixed solvent is water;

[0053] In this embodiment, the filler is calcium carbonate and aluminum hydroxide, and is composed of the following raw materials in parts by weight: 40% calcium carbonate and the rest aluminum hydroxide;

[0054] In this embodiment, the anti-precipitation layer 5 is sodium sulfate and lithopone, and is composed of the following raw materials in parts by weight: 36.45% sodium sulfate and the rest lithopone.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] 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. A stain-resistant self-cleaning protective coating, characterized in that: The invention comprises a carrier layer (1), a self-cleaning layer (2), a filler layer (4) and an anti-precipitation layer (5), wherein the carrier layer (1), the self-cleaning layer (2), the filler layer (4) and the anti-precipitation layer (5) are arranged in sequence from the inside to the outside, and a mixed solvent (3) is arranged between the self-cleaning layer (2) and the filler layer (4).

2. The anti-fouling self-cleaning protective coating according to claim 1, characterized in that: The thickness of the carrier layer (1) is 3.4 nanometers.

3. The anti-fouling self-cleaning protective coating according to claim 1, characterized in that: The thickness of the self-cleaning layer (2) is 0.8 nanometers.

4. The anti-fouling self-cleaning protective coating according to claim 1, characterized in that: The mixed solvent (3) is propylene glycol isocyanate or water.

5. The anti-fouling self-cleaning protective coating according to claim 1, characterized in that: The thickness of the filler layer (4) is 2.8 nanometers.

6. The anti-fouling self-cleaning protective coating according to claim 1, characterized in that: The thickness of the anti-precipitation layer (5) is 0.09 nanometers.

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