Self-cleaning waterproof decorative integrated coating, preparation method and application thereof

Abstract

The application discloses a self-cleaning waterproof decorative integrated coating, a preparation method and application thereof, and comprises the following components in parts by weight: a silicone rubber emulsion, 50-150 parts; deionized water, 10-20 parts; inorganic pigment and filler, 100-150 parts; a dispersing agent, 1-5 parts; a wetting agent, 1-5 parts; a leveling agent, 1-5 parts; a PH regulator, 0.01-0.1 part; a defoaming agent, 1-5 parts; and a thickening agent, 0.05-0.5 part. The self-cleaning waterproof decorative integrated coating is a novel environment-friendly high-weather-resistant water-based waterproof coating with a decorative function. The waterproof decorative integrated coating is specially designed for waterproofing of outer walls, adopts the silicone rubber emulsion with excellent comprehensive performance, and has the advantages of convenient construction, green environmental protection, excellent and long-lasting weather resistance, better water resistance, waterproof and breathable, long-lasting hydrophobic self-cleaning, stain resistance, long service life, long-lasting waterproof decoration, cost and construction period saving, and long-lasting and long-term non-fading decorative effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproof and decorative coatings, in particular to a self-cleaning waterproof and decorative integrated coating, a preparation method and application thereof. BACKGROUND

[0002] The existing waterproof coating is difficult to meet the level 1 waterproof grade of frame filling or masonry structure outer wall engineering, and many waterproof enterprises design the outer wall basic structure layer from inside to outside as wall, leveling layer, waterproof mortar layer, polymer cement waterproof coating layer, outer insulation layer and decorative coating in order to meet the requirements of GB55030-2022 on outer wall waterproofing. The outer wall basic structure layer without outer insulation is designed from inside to outside as wall, leveling layer, waterproof mortar layer, polymer cement waterproof coating layer and decorative coating. Such design has the following risks: 1. The anchor rod of the insulation layer will damage the waterproof mortar layer and the polymer cement waterproof coating layer, causing water leakage hazards; 2. The polymer cement waterproof coating layer is prone to cracking when coated thick, and more than four coats are required to meet the thickness requirements, which is difficult to construct on the outer wall facade, and requires a long construction period and a large amount of labor; 3. The insulation layer is bonded to the base surface by point bonding, and the base surface is a flexible polymer cement waterproof coating layer. If the insulation layer leaks, there is a risk of adhesion failure between the layers and the insulation layer falling off; 4. The decorative coating is mostly rigid, and the polymer cement waterproof coating is flexible, and the facade adhesion between the two layers is also a risk.

[0003] In order to completely solve the above problems, a kind of outer wall waterproof and decorative integrated coating is developed, which is convenient to construct, green and environmentally friendly, has excellent weather resistance and water resistance, is waterproof and breathable, has long-lasting hydrophobic self-cleaning, long service life, long-lasting waterproof and decorative, saves money and construction period, and has a "sandwich" type structure layer design, which can better solve the waterproof and decorative problems of outer wall. SUMMARY

[0004] The present application provides a self-cleaning waterproof and decorative integrated coating, a preparation method and application thereof, to solve the technical problems of water leakage and cracking in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The self-cleaning waterproof and decorative integrated coating provided by the present application comprises the following components by weight: 50-150 parts of silicone rubber emulsion, 10-20 parts of deionized water, 100-150 parts of inorganic pigment and filler, 1-5 parts of dispersant, 1-5 parts of wetting agent, 1-5 parts of leveling agent, 0.01-0.1 parts of pH adjuster, 1-5 parts of defoamer and 0.05-0.5 parts of thickening agent.

[0007] The application adopts a silicone rubber emulsion with excellent weather resistance, excellent water resistance and low surface energy of coating film, and adjusts the proportion of each component to prepare a high-weather-resistant and high-water-resistant self-cleaning waterproof decorative integrated coating suitable for building outer walls.

[0008] Preferably, the silicone rubber emulsion is a liquid that can form a film after water evaporation.

[0009] Further, the particle size distribution of the silicone rubber emulsion is (100-300) nm, and the water absorption rate of the film is ≤5%.

[0010] Further, the silicone rubber emulsion comprises the following components by weight: silicone rubber polyol, 90-130 parts; reactive crosslinking agent, 40-70 parts; hydrophilic group chain extender, 3-10 parts; trifunctional amino silane coupling agent, 1-3 parts; difunctional amino silane coupling agent, 1-3 parts; long-chain alkyl alkoxysilane coupling agent, 1-3 parts; neutralization reagent, 3-10 parts; deionized water, 90-150 parts.

[0011] Further, the long-chain alkyl alkoxysilane coupling agent is prepared by the following reaction:

[0012]

[0013] CH3(CH2) 11 Si(CH3)Cl2+CH3OH→CH3(CH2) 11 Si(CH3)(OCH3)2

[0014] Further, the preparation method of the silicone rubber emulsion is as follows:

[0015] The raw materials are weighed, the silicone rubber polyol and the hydrophilic group chain extender are vacuum dried at 120°C for 1h, the reactive crosslinking agent is added and reacted at 90-95°C for 3-4h, the temperature is lowered to 80-85°C, and the trifunctional amino silane coupling agent, the difunctional amino silane coupling agent, and the long-chain alkyl alkoxysilane coupling agent are gradually added dropwise within 1h, reacted for 2h, then the temperature is lowered to 55-60°C, the neutralization reagent is added and reacted for 0.5h, deionized water is added for emulsification, and the product is discharged.

[0016] Further, the silicone rubber polyol is one or more of double-end double-hydroxyl straight-chain polydimethylsiloxane, double-end double-hydroxyl side-chain polydimethylsiloxane, single-end double-hydroxyl side-chain polydimethylsiloxane, and double-end double-amino straight-chain polydimethylsiloxane.

[0017] Further, the reactive crosslinking agent is one or more of isocyanate-based crosslinking agent, vinyl crosslinking agent, amino crosslinking agent, and alkoxy crosslinking agent.

[0018] Further, the hydrophilic group chain extender is one or more of dimethylol propionic acid, dimethylol butyric acid, 2,3-dihydroxypropanesulfonate, and DHPS amine salt; the tri-functional amino silane coupling agent is one or more of γ-aminopropyl trimethoxysilane, γ-aminopropyl triethoxysilane, N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl triethoxysilane; the di-functional amino silane coupling agent is one or more of N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl methyl diethoxysilane, γ-aminopropyl methyl dimethoxysilane, γ-aminopropyl methyl diethoxysilane; and the neutralization agent is one or more of triethylamine, triethanolamine, diethanolamine, N,N-dimethylethanolamine, and aqueous ammonia.

[0019] Preferably, the tri-functional epoxy silane coupling agent is one or more of γ-glycidoxypropyl trimethoxysilane, γ-glycidoxypropyl triethoxysilane, β-(3,4-epoxycyclohexyl)-ethyl trimethoxysilane, β-(3,4-epoxycyclohexyl)-ethyl triethoxysilane, 3-(2,3-epoxypropyl) propyl trimethoxysilane, γ-(2,3-epoxypropoxy) propyl trimethoxysilane.

[0020] Further, the inorganic pigment and filler is one or more of heavy calcium carbonate, light calcium carbonate, precipitated barium sulfate, kaolin, silica powder, talc powder, mica powder, titanium dioxide, lithopone, zinc oxide, and antimony white.

[0021] Further, the dispersant is one or more of polyacrylate, sodium dodecyl sulfate, sodium oleate, carboxylate, sulfate (R-O-SO3Na), sulfonate (R-SO3Na), fatty acid ethylene oxide adduct, polyethylene glycol type polyol and polyethyleneimine derivative, phosphate ester salt type high molecular polymer, polyalkylene glycol-polyethyleneimine block copolymer, and polyalkylene glycol and triethylene tetramine reactant.

[0022] Further, the leveling agent is one or more of an acrylic leveling agent, a silicone leveling agent, and a fluorocarbon compound leveling agent; and the wetting agent is one or more of a polyether type wetting agent, a polyester type wetting agent, an alkyl benzene sulfonate type wetting agent, a polyether modified siloxane type wetting agent, and a polyester modified siloxane type wetting agent.

[0023] Further, the PH regulator is 2-amino-2-methyl-1-propanol; the thickening agent is one or more of a cellulose thickening agent, an inorganic thickening agent, a polyurethane thickening agent, an acrylic thickening agent, and an alkali swelling thickening agent; and the defoaming agent is one or more of a phosphate ester defoaming agent, a mineral oil defoaming agent, and a silicone defoaming agent.

[0024] The application further provides a preparation method of the self-cleaning waterproof decorative integrated coating.

[0025] The raw materials are weighed, the silicone rubber emulsion, deionized water, dispersant, wetting agent, and leveling agent are added into a stirring cylinder and stirred uniformly, the inorganic pigment and filler are added while stirring, high-speed stirring is performed for 25 min, the PH regulator and defoaming agent are added while reducing the stirring speed, stirring is performed for 10 min, finally, the defoaming agent is added and stirred for 10 min, and the coating is discharged and stored in a sealed manner.

[0026] The application further provides application of the coating prepared by the preparation method of the self-cleaning waterproof decorative integrated coating to waterproof decoration of an outer wall of a structure or a building.

[0027] Based on the above technical solution, the application embodiment can at least produce the following technical effects:

[0028] The self-cleaning waterproof decorative integrated coating provided by the application not only has the functions of waterproofing and decoration, saves money and time, but also meets the requirements of the first-level waterproofing of the outer wall engineering in the General Specification for Waterproofing of Buildings and Municipal Engineering GB55030-2022. The use of the silicone rubber emulsion with excellent comprehensive performance significantly improves the weather resistance, water resistance, and hydrophobic self-cleaning property of the coating, and the coating still has excellent water resistance and hydrophobic self-cleaning property when used in outdoor environments for a long time, thereby significantly improving the waterproof performance of the outer wall.

[0029] The self-cleaning waterproof decorative integrated coating provided by the application is water-based, environmentally friendly, and pollution-free, and is convenient to construct, can be sprayed, rolled, or brushed, has high weather resistance, can resist artificial climate aging for more than 3000 h, has excellent decorative effect and does not fade for a long time, has high water resistance, has a water absorption rate of less than or equal to 5% after being immersed in water for 14 d, has a tensile strength retention rate of more than or equal to 80%, and has an elongation rate of more than or equal to 300%, has self-cleaning property, has a water contact angle of more than or equal to 100°, has obvious lotus effect, and has excellent stain resistance, and can be widely used in waterproof decoration of outer walls of buildings or structures.

[0030] The self-cleaning waterproof decorative integrated coating provided by the application has excellent light resistance, and the addition of the pigment and filler further improves the weather resistance and decorative property of the coating, and the coating has rich colors and does not fade for a long time. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present application will now be described in detail, with reference to the drawings, which are by way of illustration, and are not intended to be limiting of the present application, unless otherwise specifically indicated. Further, the description of the exemplary embodiments is intended to convey, without limitation, certain aspects, features and characteristics of the present application.

[0032] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Additionally, for the purposes of the present application, ranges disclosed can be understood as being inclusive of the stated range and each individual intermediate value within that range. Each smaller range that falls within a broader range is also a contemplated aspect of the present application. The upper and lower limits of these smaller ranges can independently be included or excluded in the smaller ranges.

[0033] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Although preferred methods and materials are described, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present application. All documents mentioned herein are incorporated by reference to disclose and describe in detail the methods and / or materials that are related to the present application. In the case of conflict between the present specification and any document incorporated by reference, the present specification will control.

[0034] Various modifications and changes can be made to the specific embodiments of the present application described herein without departing from the scope or spirit of the application. Other embodiments of the application will be apparent to those of ordinary skill in the art from the description and examples that follow. The description and examples are intended to be illustrative of certain aspects of the application and are not intended to limit the scope of the application.

[0035] As used herein, the terms "comprise", "comprising", "include", "including", "have", "having" and the like are open-ended and do not exclude additional elements or steps.

[0036] Example 1

[0037] A self-cleaning waterproof decorative integrated coating includes the following components by weight parts:

[0038] A silicone rubber emulsion, 100 parts, wherein the silicone rubber emulsion includes the following components by weight parts:

[0039] Silicone rubber polyol, double-terminated dihydroxy linear polydimethylsiloxane 110 parts; reactive crosslinking agent, isocyanate crosslinking agent 40 parts; hydrophilic group chain extender, dimethylol butyric acid 3 parts; trifunctional aminosilane coupling agent, γ-aminopropyltriethoxysilane 1 part; difunctional aminosilane coupling agent, N-β-(aminoethyl)-γ-aminopropylmethyldiethoxysilane 1 part; long-chain alkylalkoxysilane coupling agent 1 part; neutralizing agent, triethylamine 3 parts; deionized water 120 parts; preparation method The method comprises the following steps: drying the silicone rubber polyol and the hydrophilic group chain extender in vacuum at 120°C for 1 hour, adding isocyanate and reacting at 90-95°C for 3-4 hours, cooling to 80-85°C and gradually adding a trifunctional aminosilane coupling agent, a difunctional aminosilane coupling agent and a long-chain alkyl alkoxysilane coupling agent and a trifunctional epoxysilane coupling agent within 1 hour, reacting for 2 hours, finally cooling to 55-60°C, adding a neutralizing reactant, reacting for 0.5 hour, adding deionized water for emulsification, and discharging the material.

[0040] Deionized water, 10 parts;

[0041] Inorganic pigments and fillers, precipitated barium sulfate and titanium dioxide, 100 parts;

[0042] Dispersant, fatty acid ethylene oxide adduct, 2 parts;

[0043] Wetting agent, polyether modified silicone type wetting agent, 1 part;

[0044] Leveling agent, silicone leveling agent, 1 part;

[0045] pH regulator, AMP-95, 0.05 parts;

[0046] Defoamer, silicone defoamer, 1 part;

[0047] Thickener, bentonite and polyurethane thickener, 0.2 parts.

[0048] The preparation method of the self-cleaning waterproof decorative integrated coating comprises the following steps:

[0049] Weigh the raw materials according to the measurement, add the silicone rubber emulsion, deionized water, dispersant, wetting agent and leveling agent into the mixing tank and stir evenly, add the inorganic pigment and filler while stirring, stir at high speed for 25 minutes, reduce the speed and add the pH regulator and thickener, stir for 10 minutes, finally add the defoamer and stir for 10 minutes, seal the discharged material and store it.

[0050] Example 2

[0051] A self-cleaning waterproof decorative integrated coating, comprising the following components in parts by weight:

[0052] Silicone rubber emulsion, 100 parts, wherein the silicone rubber emulsion comprises the following components by weight parts:

[0053] Silicone rubber polyol, double-end double-hydroxyl straight-chain type polydimethylsiloxane and single-end double-hydroxyl side-chain type polydimethylsiloxane 90 parts; reactive crosslinking agent, isocyanate-based crosslinking agent and alkoxy crosslinking agent 10 parts; hydrophilic group chain extender, dimethylol butyric acid 3 parts; trifunctional amino silane coupling agent, γ-aminopropyl trimethoxysilane 1 part; difunctional amino silane coupling agent, N-β-(aminoethyl)-γ-aminopropyl methyldiethoxysilane 1 part; long-chain alkyl alkoxy silane coupling agent 1 part; neutralization reagent, triethylamine 3 parts; deionized water 120 parts. The silicone rubber emulsion preparation method is the same as that of Example 1.

[0054] Deionized water, 10 parts;

[0055] Inorganic pigment and filler, precipitated barium sulfate, mica powder and titanium dioxide, 100 parts;

[0056] Dispersant, internally compounded polyol-polyethyleneimine block copolymer, 2.5 parts;

[0057] Wetting agent, polyether-modified siloxane type wetting agent, 1 part;

[0058] Leveling agent, silicone-based leveling agent, 1 part;

[0059] PH adjuster, AMP-95, 0.05 parts;

[0060] Defoaming agent, silicone-based defoaming agent, 1 part;

[0061] Thickening agent, bentonite and polyurethane-based thickening agent, 0.2 parts.

[0062] The preparation method of the self-cleaning waterproof decorative integrated coating described in this example is the same as that of Example 1.

[0063] Example 3

[0064] A self-cleaning waterproof decorative integrated coating comprises the following components by weight parts:

[0065] Silicone rubber emulsion, 100 parts, wherein the silicone rubber emulsion comprises the following components by weight parts:

[0066] Silicone rubber polyol, double end double hydroxyl side chain type polydimethylsiloxane and single end double hydroxyl side chain type polydimethylsiloxane 90 parts; reactive crosslinking agent, vinyl crosslinking agent and amino crosslinking agent 22 parts; hydrophilic group chain extender, dimethylol propionic acid and 2,3-dihydroxy propanesulfonate 3 parts; trifunctional amino silane coupling agent, γ-aminopropyl trimethoxysilane 1 part; difunctional amino silane coupling agent, N-β-(aminoethyl)-γ-aminopropyl methyldiethoxysilane 1 part; long chain alkyl alkoxysilane coupling agent 1 part; neutralization reaction agent, triethylamine 3 parts; deionized water 120 parts. The silicone rubber emulsion preparation method is the same as that of Example 1.

[0067] Example 4

[0068] A self-cleaning waterproof decorative integrated coating includes the following components by weight:

[0069] Silicone rubber emulsion, 100 parts, wherein the silicone rubber emulsion includes the following components by weight:

[0070] Silicone rubber polyol, double end double hydroxyl straight chain type polydimethylsiloxane and double end double amino straight chain type polydimethylsiloxane 90 parts; reactive crosslinking agent, isocyanate-based crosslinking agent 22 parts; hydrophilic group chain extender, dimethylol propionic acid and DHPS amine salt 3 parts; trifunctional amino silane coupling agent, N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane 1 part; difunctional amino silane coupling agent, N-β-(aminoethyl)-γ-aminopropyl methyldiethoxysilane 1 part; long chain alkyl alkoxysilane coupling agent 1 part; neutralization reaction agent, triethylamine 3 parts; deionized water 120 parts. The silicone rubber emulsion preparation method is the same as that of Example 1.

[0071] Deionized water, 10 parts;

[0072] Inorganic pigment and filler, precipitated barium sulfate, kaolin and titanium dioxide, 100 parts;

[0073] Dispersant, internally polyol-polyethyleneimine block copolymer, 2.5 parts;

[0074] Wetting agent, polyether modified siloxane type wetting agent, 1 part;

[0075] Leveling agent, silicone leveling agent, 1 part;

[0076] PH regulator, AMP-95, 0.05 parts;

[0077] Defoamer, silicone defoamer, 1 part;

[0078] Thickening agent, bentonite and polyurethane thickening agent, 0.2 parts.

[0079] The preparation method of the self-cleaning waterproof decorative integrated coating described in this embodiment is the same as that of Example 1.

[0080] Example 5

[0081] A self-cleaning waterproof decorative integrated coating includes the following components by weight:

[0082] Silicone rubber emulsion, 100 parts, wherein the silicone rubber emulsion includes the following components by weight:

[0083] Organic silicone rubber polyol, double-end double-hydroxyl linear polydimethylsiloxane and double-end double-amino linear polydimethylsiloxane 90 parts; reactive crosslinking agent, isocyanate-based crosslinking agent and alkoxy crosslinking agent 20 parts; hydrophilic group chain extender, DHPS amine salt 3 parts; trifunctional amino silane coupling agent, N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane 1 part; difunctional amino silane coupling agent, N-β-(aminoethyl)-γ-aminopropyl methyldiethoxysilane 1 part; long-chain alkyl alkoxy silane coupling agent 1 part; deionized water 120 parts. The preparation method of the silicone rubber emulsion is the same as that of Example 1.

[0084] Deionized water, 10 parts;

[0085] Inorganic pigment and filler, precipitated barium sulfate, kaolin and titanium dioxide, 100 parts;

[0086] Dispersant, internally compounded polyol-polyethyleneimine block copolymer, 2.5 parts;

[0087] Wetting agent, polyether-modified siloxane wetting agent, 1 part;

[0088] Leveling agent, silicone leveling agent, 1 part;

[0089] PH adjuster, AMP-95, 0.05 parts;

[0090] Defoaming agent, silicone defoaming agent, 1 part;

[0091] Thickening agent, bentonite and polyurethane thickening agent, 0.2 parts.

[0092] The preparation method of the self-cleaning waterproof decorative integrated coating described in this embodiment is the same as that of Example 1.

[0093] Example 6

[0094] A self-cleaning waterproof decorative integrated coating includes the following components by weight:

[0095] Silicone rubber emulsion, 100 parts, the same as in Example 5.

[0096] Deionized water, 10 parts;

[0097] Inorganic pigment and filler, precipitated barium sulfate, silica powder and titanium dioxide, 100 parts;

[0098] Dispersant, polyol-polyethyleneimine block copolymer, 2.5 parts;

[0099] Wetting agent, polyether-modified silicone wetting agent, 1 part;

[0100] Leveling agent, silicone leveling agent, 1 part;

[0101] PH regulator, AMP-95, 0.05 parts;

[0102] Defoaming agent, silicone defoaming agent, 1 part;

[0103] Thickening agent, polyurethane thickening agent, 0.2 parts.

[0104] The preparation method of the self-cleaning waterproof decorative integrated coating described in this example is the same as that of Example 1.

[0105] Comparative Example 1

[0106] Acrylic emulsion, 100 parts,

[0107] Deionized water, 10 parts;

[0108] Inorganic pigment and filler, precipitated barium sulfate and titanium dioxide, 100 parts;

[0109] Dispersant, fatty acid ethylene oxide adduct, 2 parts;

[0110] Wetting agent, polyether-modified silicone wetting agent, 1 part;

[0111] Leveling agent, silicone leveling agent, 1 part;

[0112] PH regulator, AMP-95, 0.05 parts;

[0113] Defoaming agent, silicone defoaming agent, 1 part;

[0114] Thickening agent, bentonite and polyurethane thickening agent, 0.2 parts.

[0115] The preparation method of the self-cleaning waterproof decorative integrated coating described in this example is the same as that of Example 1.

[0116] Test comparison: the self-cleaning waterproof decorative integrated coatings obtained in Examples 1-6 and Comparative Example 1 are tested and compared, and the performance test methods or standards are as follows:

[0117] (1) Artificial climate aging resistance test: according to the provisions of cycle A in GB / T 1865-2009, the sample is taken out after 3000h of testing. The result is evaluated according to GB / T 1766.

[0118] (2) Water resistance test: test according to GB / T 1690-2010, test liquid is deionized water. Test temperature is (23±2)℃, test time is 14d±4h, visual appearance; tensile property test is carried out according to 9.2.1 of GB / T 16777-2008.

[0119] (3) Hydrophobicity test: test according to GB / T 30693-2014.

[0120] (4) Water absorption test: test according to 6.15 of GB / T 19250-2013, water immersion is 14d.

[0121] (5) Stain resistance test: test according to 5.17 of GB / T 9755-2014.

[0122] The performance test results are shown in Table 1:

[0123] Table 1 Performance test results

[0124]

[0125]

[0126] From the above test results, it can be seen that the high-weathering high-water-resistance self-cleaning silicone rubber waterproof decorative integrated coating of the present application is water-based, environmentally friendly, non-polluting, easy to apply, and can be sprayed, rolled or brushed. It has high weather resistance, can withstand artificial climate aging for more than 3000h, and has excellent outdoor weather resistance and durability for more than 20 years. It has excellent decorative effect and does not fade for a long time. It has high water resistance, water absorption rate ≤5% after water immersion for 14d, tensile strength retention rate ≥80%, and elongation rate ≥300%. It has self-cleaning, hydrophobic angle ≥100°, obvious lotus effect, and excellent stain resistance. It can be widely used for waterproof decoration of building or structure outer wall.

[0127] Finally, it should be noted that:

[0128] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that they can still modify the technical solutions described in the above examples, or make equivalent substitutions for part or all of the technical features. Such modifications or substitutions do not change the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-cleaning waterproof decorative integrated paint, characterized by, The components include the following weight parts: silicone rubber emulsion, 50-150 parts; deionized water, 10-20 parts; inorganic pigment filler, 100-150 parts; dispersant, 1-5 parts; wetting agent, 1-5 parts; leveling agent, 1-5 parts; PH regulator, 0.01-0.1 parts; defoamer, 1-5 parts; thickening agent, 0.05-0.5 parts; the silicone rubber emulsion includes the following weight parts: silicone rubber polyol, 90-130 parts; reactive crosslinking agent, 40-70 parts; hydrophilic group chain extender, 3-10 parts; trifunctional amino silane coupling agent, 1-3 parts; difunctional amino silane coupling agent, 1-3 parts; long-chain alkyl alkoxysilane coupling agent, 1-3 parts; neutralization reagent, 3-10 parts; deionized water, 90-150 parts; the reactive crosslinking agent is one or more of isocyanate crosslinking agent, vinyl crosslinking agent, amino crosslinking agent and alkoxy crosslinking agent; The silicone rubber emulsion preparation method is as follows: The raw materials are weighed, the silicone rubber polyol and the hydrophilic group chain extender are vacuum dried at 120℃ for 1h, the reactive crosslinking agent is added and reacted at 90-95℃ for 3-4 hours, the temperature is lowered to 80-85℃, and the trifunctional amino silane coupling agent, the difunctional amino silane coupling agent and the long-chain alkyl alkoxysilane coupling agent, the trifunctional epoxy silane coupling agent are gradually added and dropped in 1h, reacted for 2h, finally the temperature is lowered to 55-60℃, the neutralization reagent is added and reacted for 0.5h, deionized water is added for emulsification, and the product is discharged. The silicone rubber polyol is one or more of double-end double-hydroxyl straight-chain type polydimethylsiloxane, double-end double-hydroxyl side-chain type polydimethylsiloxane, single-end double-hydroxyl side-chain type polydimethylsiloxane and double-end double-amino straight-chain type polydimethylsiloxane.

2. The self-cleaning, water repellent, decorative integrated paint according to claim 1, characterized in that, The hydrophilic group chain extender is one or more of dihydroxymethyl propionic acid, dihydroxymethyl butyric acid, 2,3-dihydroxypropane sulfonate and DHPS amine salt; the trifunctional amino silane coupling agent is one or more of γ-aminopropyl trimethoxysilane, γ-aminopropyl triethoxysilane, N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl triethoxysilane; the difunctional amino silane coupling agent is one or more of N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl methyl diethoxysilane, γ-aminopropyl methyl dimethoxysilane, γ-aminopropyl methyl diethoxysilane; the neutralization reagent is one or more of triethylamine, triethanolamine, diethanolamine, N,N-dimethylethanolamine and ammonia.

3. The self-cleaning, water repellent, decorative integrated paint according to claim 1, characterized in that, The inorganic pigment filler is one or more of heavy calcium carbonate, light calcium carbonate, precipitated barium sulfate, kaolin, silica powder, talc powder, mica powder, titanium dioxide, barium sulfate, zinc oxide and antimony white.

4. The self-cleaning, water repellent, decorative integrated paint according to claim 1, characterized in that, ​ 5. The self-cleaning, water repellent, decorative integrated paint according to claim 1, characterized in that, The dispersant is one or more of polyacrylate, sodium dodecyl sulfate, sodium oleate, carboxylate, sulfate, sulfonate, fatty acid ethylene oxide adduct, polyethylene glycol type polyol and polyethylene imine derivative, phosphate ester salt type high molecular polymer, polyoxeprolactone-polyethylene imine block copolymer, and reaction product of polyoxeprolactone and triethylene tetramine.

6. The self-cleaning, water repellent, decorative integrated paint according to claim 1, characterized in that, The leveling agent is one or more of acrylic leveling agent, silicone leveling agent, and fluorocarbon compound leveling agent; the wetting agent is one or more of polyether type wetting agent, polyester type wetting agent, alkyl benzene sulfonate type wetting agent, polyether modified siloxane type wetting agent, and polyester modified siloxane type wetting agent.

7. The self-cleaning, water repellent, decorative integrated paint according to claim 1, characterized in that, The PH regulator is 2-amino-2-methyl-1-propanol; the thickening agent is one or more of cellulose thickening agent, inorganic thickening agent, polyurethane thickening agent, acrylic thickening agent, and alkali swelling thickening agent; the defoaming agent is one or more of phosphate ester defoaming agent, mineral oil defoaming agent, and silicone defoaming agent.

8. The method of claim 1-7, wherein the self-cleaning, water repellent, and decorative integrated coating is prepared by, The method comprises the following steps: The raw materials are weighed, the silicone rubber emulsion, deionized water, dispersant, wetting agent, and leveling agent are added into a stirring cylinder and stirred uniformly, the inorganic pigment and filler are added while stirring, high-speed stirring is performed for 25 min, the PH regulator and defoaming agent are added while reducing the stirring speed, stirring is performed for 10 min, the defoaming agent is finally added and stirred for 10 min, and the product is discharged and stored in a sealed manner.

9. Application of the self-cleaning waterproof decorative integrated coating prepared by the preparation method of claim 8 to the waterproof decoration of an outer wall of a structure or building.

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