Water-based sound insulation coating for building and production process of water-based sound insulation coating

Abstract

The invention relates to a production process of a water-based sound insulation coating for buildings. The process comprises the following steps: preparing polyurethane resin; mixing and blending the raw materials; a filler adding step: adding 12 to 22 parts by mass of a filler, 4 to 8 parts by mass of damping microspheres, 2 to 4 parts by mass of emulsified asphalt, 4 to 6 parts by mass of hydroxyethyl cellulose and 5 to 8 parts by mass of silicon dioxide aerogel powder into 100 to 120 parts by mass of raw material milk fat, and uniformly stirring; uniformly mixing and stirring to obtain filler milk fat; an auxiliary agent adding step; and a sound insulation coating preparation step: adding 40-60 parts by mass of deionized water into 100-120 parts by mass of the coating raw materials, and uniformly mixing and stirring to obtain the building water-based sound insulation coating. The water-based sound insulation coating for the building is high in structural strength, good in flexibility, excellent in tensile property, not prone to breakage or damage, high in durability and excellent in sound insulation and earthquake resistance.

Description

Technical Field

[0001] The invention relates to the field of water-based sound-insulating paint for buildings, in particular to a water-based sound-insulating paint for buildings and a production process thereof. Background Art

[0002] Paint is a large family, which includes several major categories such as paint, water-based paint, and latex paint. Water-based paint is a type of paint that has developed rapidly in recent years. Due to its characteristics, it is increasingly used in indoor and outdoor decoration. Water-based paint is a type of paint that uses water as a solvent or dispersion medium. Water-based paint can be divided into three categories: water-soluble paint, water-dilutable paint, and water-dispersible paint, which is often called latex paint. The main sound insulation raw material in sound insulation paint is a nano multilayer structure material, which sandwiches the paint molecular material in the middle. The entire intermediate film is evenly distributed with microparticles with sound insulation effect, which reduces the transmitted sound wave energy, thereby playing a role in sound absorption and sound insulation. Sound insulation paint is suitable for the surface of indoor and outdoor buildings, etc. Specifically, it can be applied to general residential areas, roadside residences, tunnels, road noise barriers, villas, high-end residences, hotels, schools, gymnasiums, concert halls, opera houses, factories, etc. Sound insulation paint has the characteristics of strong sound absorption performance and can effectively reduce and alleviate noise.

[0003] However, traditional sound insulation coatings, for example, the technical solution disclosed in the patent with application number CN201911209353.1 and invention name "A double-penetration high-performance noise-reducing water-based damping coating and its preparation method", have poor seismic performance and insufficient flexibility. Summary of the invention

[0004] Based on this, it is necessary to provide a production process for water-based sound insulation coatings for construction to address the technical problems of poor seismic performance and insufficient flexibility of traditional sound insulation coatings.

[0005] A production process of water-based sound-insulating coating for construction, the process comprising the following steps: The polyurethane resin preparation step comprises: mixing and stirring 100 to 200 parts by weight of polyester diol, 80 to 120 parts by weight of polyether diol, 120 to 260 parts by weight of isocyanate, and 2 to 6 parts by weight of dibutyltin dilaurate, heating the mixture to 80 to 100 degrees Celsius, and reacting the mixture for 1.5 to 2 hours to obtain a polyurethane resin; Raw material mixing and modulation step: 10 to 20 parts by weight of polyurethane resin, 12 to 22 parts by weight of epoxy resin, 8 to 12 parts by weight of silicone resin, 6 to 12 parts by weight of rubber resin, 13 to 18 parts by weight of acrylic emulsion and 8 to 14 parts by weight of styrene-acrylic emulsion are mixed and stirred to obtain raw material cream; Filler adding step: adding 12 to 22 parts by weight of filler, 4 to 8 parts by weight of shock-absorbing microspheres, 2 to 4 parts by weight of emulsified asphalt, 4 to 6 parts by weight of hydroxyethyl cellulose and 5 to 8 parts by weight of silica aerogel powder to 100 to 120 parts by weight of raw cream, and mixing and stirring to obtain filler cream; The auxiliary agent adding step is as follows: adding 0.2 to 1 parts by weight of a wetting agent, 0.4 to 0.8 parts by weight of a defoaming agent, 0.1 to 0.5 parts by weight of a dispersant, 1 to 2 parts by weight of a thickener, 0.4 to 2 parts by weight of a flame retardant, 0.2 to 0.5 parts by weight of a plasticizer, 0.1 to 0.3 parts by weight of a cross-linking agent, 1 to 2 parts by weight of a film-forming agent, and 0.5 to 1.5 parts by weight of an anti-settling agent to 100 to 130 parts by weight of a filler cream, and mixing and stirring to obtain a coating raw material; The sound insulation coating preparation step is as follows: 100 to 120 parts by weight of coating raw materials are added to 40 to 60 parts by weight of deionized water, and the mixture is stirred evenly to obtain a water-based sound insulation coating for construction.

[0006] In one embodiment, the filler includes the following components in parts by weight: 20 to 30 parts of talc powder, 18 to 24 parts of calcium carbonate powder, 16 to 22 parts of kaolin, 15 to 23 parts of mica powder and 12 to 18 parts of vermiculite powder.

[0007] In one embodiment, the flame retardant includes the following components in parts by weight: 10 to 20 parts of magnesium hydroxide, 24 to 32 parts of aluminum hydroxide, 16 to 24 parts of aluminum phosphate, and 24 to 44 parts of zinc borate.

[0008] In one embodiment, the plasticizer includes the following components in parts by weight: 14 to 34 parts of dibutyl phthalate, 16 to 26 parts of dioctyl phthalate, 15 to 25 parts of dioctyl adipate, and 22 to 42 parts of dioctyl sebacate.

[0009] In one embodiment, the shock-absorbing microspheres include the following components in parts by weight: 22 to 32 parts of silica-alumina-based hollow microspheres, 24 to 36 parts of hollow glass microspheres, 14 to 22 parts of polystyrene particles, 13 to 23 parts of rubber powder, and 8 to 14 parts of ceramic hollow microspheres.

[0010] In one embodiment, the cross-linking agent is a mixture of dicumyl peroxide and triallyl isocyanurate.

[0011] In one embodiment, the thickener is rosin resin.

[0012] In one embodiment, the film former is dipropylene glycol n-butyl ether.

[0013] In one embodiment, the defoaming agent is a silicone defoaming agent.

[0014] A water-based sound-insulating paint for construction is produced by the production process of the water-based sound-insulating paint for construction in any of the above embodiments.

[0015] The production process steps of the above-mentioned water-based sound-insulating coating for construction are concise and exquisite, easy to control, and each step is carried out carefully and meticulously. The water-based sound-insulating coating for construction obtained by the above-mentioned production process of water-based sound-insulating coating for construction has high structural strength, good flexibility, excellent tensile strength, is not easy to crack or damage, has high durability, and has excellent sound insulation and seismic resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of a process for producing water-based sound-proofing coating for construction in one embodiment. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth so as to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0023] See also Figure 1 The present invention provides a production process of water-based sound insulation coating for construction, the process comprising the following steps: Step 101: Preparation step of polyurethane resin: 100 to 200 parts by mass of polyester diol, 80 to 120 parts by mass of polyether diol, 120 to 260 parts by mass of isocyanate and 2 to 6 parts by mass of dibutyltin dilaurate are mixed and stirred evenly, heated to 80 to 100 degrees Celsius, and reacted for 1.5 to 2 hours to obtain polyurethane resin.

[0024] Specifically, 120 to 180 parts by weight of polyester diol, 90 to 110 parts by weight of polyether diol, 140 to 220 parts by weight of isocyanate, and 3 to 5 parts by weight of dibutyltin dilaurate are mixed and stirred uniformly, heated to 85 to 95 degrees Celsius, and reacted for 95 to 110 minutes to obtain a polyurethane resin. Further, 150 parts by weight of polyester diol, 100 parts by weight of polyether diol, 200 parts by weight of isocyanate, and 4 parts by weight of dibutyltin dilaurate are mixed and stirred uniformly, heated to 90 degrees Celsius, and reacted for 100 minutes to obtain a polyurethane resin.

[0025] Step 102: Raw material mixing and modulation step: 10 to 20 parts by mass of polyurethane resin, 12 to 22 parts by mass of epoxy resin, 8 to 12 parts by mass of silicone resin, 6 to 12 parts by mass of rubber resin, 13 to 18 parts by mass of acrylic emulsion and 8 to 14 parts by mass of styrene-acrylic emulsion are mixed and stirred to uniformly obtain raw cream.

[0026] Specifically, 12 to 18 parts by weight of polyurethane resin, 14 to 20 parts by weight of epoxy resin, 9 to 11 parts by weight of silicone resin, 7 to 11 parts by weight of rubber resin, 14 to 17 parts by weight of acrylic emulsion, and 9 to 13 parts by weight of styrene-acrylic emulsion are mixed and stirred uniformly to obtain raw cream. Further, 15 parts by weight of polyurethane resin, 17 parts by weight of epoxy resin, 10 parts by weight of silicone resin, 9 parts by weight of rubber resin, 15 parts by weight of acrylic emulsion, and 11 parts by weight of styrene-acrylic emulsion are mixed and stirred uniformly to obtain raw cream.

[0027] Step 103: Filler adding step: add 12 to 22 parts by mass of filler, 4 to 8 parts by mass of shock-absorbing microspheres, 2 to 4 parts by mass of emulsified asphalt, 4 to 6 parts by mass of hydroxyethyl cellulose and 5 to 8 parts by mass of silica aerogel powder to 100 to 120 parts by mass of raw cream, mix and stir evenly to obtain filler cream.

[0028] In one embodiment, the filler includes the following components in parts by weight: 20 to 30 parts of talc powder, 18 to 24 parts of calcium carbonate powder, 16 to 22 parts of kaolin, 15 to 23 parts of mica powder and 12 to 18 parts of vermiculite powder.

[0029] Specifically, 14 to 20 parts by mass of filler, 5 to 7 parts by mass of shock-absorbing microspheres, 2.5 to 3.5 parts by mass of emulsified asphalt, 4.5 to 5.5 parts by mass of hydroxyethyl cellulose, and 6 to 8 parts by mass of silica aerogel powder are added to 105 to 115 parts by mass of raw cream, and the mixture is mixed and stirred to obtain filler cream. Further, 16 parts by mass of filler, 6 parts by mass of shock-absorbing microspheres, 3 parts by mass of emulsified asphalt, 5 parts by mass of hydroxyethyl cellulose, and 7 parts by mass of silica aerogel powder are added to 110 parts by mass of raw cream, and the mixture is mixed and stirred to obtain filler cream.

[0030] Step 104: auxiliary agent adding step: add 0.2 to 1 parts by mass of wetting agent, 0.4 to 0.8 parts by mass of defoaming agent, 0.1 to 0.5 parts by mass of dispersant, 1 to 2 parts by mass of thickener, 0.4 to 2 parts by mass of flame retardant, 0.2 to 0.5 parts by mass of plasticizer, 0.1 to 0.3 parts by mass of cross-linking agent, 1 to 2 parts by mass of film-forming agent, 0.5 to 1.5 parts by mass of anti-settling agent to 100 to 130 parts by mass of filler cream, mix and stir evenly to obtain coating raw materials.

[0031] In this embodiment, the crosslinking agent is a mixture of diisopropylbenzene peroxide and triallyl isocyanurate. The thickener is rosin resin. The film-forming agent is dipropylene glycol n-butyl ether. The defoamer is an organosilicon defoamer. The dispersant is an ammonium acrylate dispersant.

[0032] Specifically, 0.4 to 0.8 parts by mass of a wetting agent, 0.5 to 0.7 parts by mass of a defoaming agent, 0.2 to 0.3 parts by mass of a dispersant, 1.2 to 1.8 parts by mass of a thickener, 0.8 to 1.6 parts by mass of a flame retardant, 0.3 to 0.4 parts by mass of a plasticizer, 0.15 to 0.25 parts by mass of a cross-linking agent, 1.2 to 1.8 parts by mass of a film-forming agent, and 0.8 to 1.2 parts by mass of an anti-settling agent are added to 110 to 120 parts by mass of a filler cream, and the mixture is stirred to obtain a coating raw material. Furthermore, 0.6 parts by mass of a wetting agent, 0.6 parts by mass of a defoaming agent, 0.25 parts by mass of a dispersant, 1.5 parts by mass of a thickener, 1.2 parts by mass of a flame retardant, 0.35 parts by mass of a plasticizer, 0.2 parts by mass of a cross-linking agent, 1.4 parts by mass of a film-forming agent and 1 part by mass of an anti-settling agent are added to 115 parts by mass of a filler cream, and the mixture is mixed and stirred to obtain a coating raw material.

[0033] Step 105: Preparation step of sound insulation coating: Add 100 to 120 parts by mass of coating raw materials to 40 to 60 parts by mass of deionized water, mix and stir evenly to obtain water-based sound insulation coating for construction.

[0034] Specifically, 105 to 115 parts by weight of the coating raw material are added to 45 to 55 parts by weight of deionized water, mixed and stirred evenly to obtain a water-based sound insulation coating for construction. Further, 110 parts by weight of the coating raw material are added to 50 parts by weight of deionized water, mixed and stirred evenly to obtain a water-based sound insulation coating for construction.

[0035] In order to increase the flame retardant properties of water-based sound insulation coatings for buildings, in one embodiment, the flame retardant includes the following components in parts by weight: 10 to 20 parts of magnesium hydroxide, 24 to 32 parts of aluminum hydroxide, 16 to 24 parts of aluminum phosphate, and 24 to 44 parts of zinc borate. The flame retardant composed of the above components can increase the flame retardant properties of water-based sound insulation coatings for buildings.

[0036] In order to increase the plasticity of water-based sound insulation coating for construction, in one embodiment, the plasticizer includes the following components in parts by weight: 14 to 34 parts of dibutyl phthalate, 16 to 26 parts of dioctyl phthalate, 15 to 25 parts of dioctyl adipate, and 22 to 42 parts of dioctyl sebacate. The plasticizer composed of the above components can increase the plasticity of water-based sound insulation coating for construction.

[0037] In order to further improve the sound insulation and earthquake resistance of water-based sound insulation coatings for buildings, in one embodiment, the damping microspheres include the following components in parts by weight: 22 to 32 parts of silicon-aluminum-based hollow microspheres, 24 to 36 parts of hollow glass microspheres, 14 to 22 parts of polystyrene particles, 13 to 23 parts of rubber powder, and 8 to 14 parts of ceramic hollow microspheres. The damping microspheres composed of the above components can improve the sound insulation and earthquake resistance of water-based sound insulation coatings for buildings.

[0038] The present invention also provides a water-based sound-insulating coating for construction, which is made by the production process of the water-based sound-insulating coating for construction in any of the above embodiments.

[0039] The production process steps of the above-mentioned water-based sound-insulating coating for construction are concise and exquisite, easy to control, and each step is carried out carefully and meticulously. The water-based sound-insulating coating for construction obtained by the above-mentioned production process of water-based sound-insulating coating for construction has high structural strength, good flexibility, excellent tensile strength, is not easy to crack or damage, has high durability, and has excellent sound insulation and seismic resistance.

[0040] The performance test results of the water-based sound insulation coating for buildings made by the above-mentioned water-based sound insulation coating production process after curing at room temperature are as follows:

[0041] The sound insulation improvement test is based on GB / T50121-2005 "Building Sound Insulation Evaluation Standard".

[0042] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A production process for water-based sound insulation coating for construction, characterized in that: The process comprises the following steps: The polyurethane resin preparation step comprises: mixing and stirring 100 to 200 parts by weight of polyester diol, 80 to 120 parts by weight of polyether diol, 120 to 260 parts by weight of isocyanate, and 2 to 6 parts by weight of dibutyltin dilaurate, heating the mixture to 80 to 100 degrees Celsius, and reacting the mixture for 1.5 to 2 hours to obtain a polyurethane resin; Raw material mixing and modulation step: 10 to 20 parts by weight of polyurethane resin, 12 to 22 parts by weight of epoxy resin, 8 to 12 parts by weight of silicone resin, 6 to 12 parts by weight of rubber resin, 13 to 18 parts by weight of acrylic emulsion and 8 to 14 parts by weight of styrene-acrylic emulsion are mixed and stirred to obtain raw material cream; Filler adding step: adding 12 to 22 parts by weight of filler, 4 to 8 parts by weight of shock-absorbing microspheres, 2 to 4 parts by weight of emulsified asphalt, 4 to 6 parts by weight of hydroxyethyl cellulose and 5 to 8 parts by weight of silica aerogel powder to 100 to 120 parts by weight of raw cream, and mixing and stirring to obtain filler cream; The auxiliary agent adding step is as follows: adding 0.2 to 1 parts by weight of a wetting agent, 0.4 to 0.8 parts by weight of a defoaming agent, 0.1 to 0.5 parts by weight of a dispersant, 1 to 2 parts by weight of a thickener, 0.4 to 2 parts by weight of a flame retardant, 0.2 to 0.5 parts by weight of a plasticizer, 0.1 to 0.3 parts by weight of a cross-linking agent, 1 to 2 parts by weight of a film-forming agent, and 0.5 to 1.5 parts by weight of an anti-settling agent to 100 to 130 parts by weight of a filler cream, and mixing and stirring to obtain a coating raw material; The sound insulation coating preparation step is as follows: 100 to 120 parts by weight of coating raw materials are added to 40 to 60 parts by weight of deionized water, and the mixture is stirred evenly to obtain a water-based sound insulation coating for construction.

2. The process according to claim 1, characterized in that The filler includes the following components in parts by mass: 20 to 30 parts of talc powder, 18 to 24 parts of calcium carbonate powder, 16 to 22 parts of kaolin, 15 to 23 parts of mica powder and 12 to 18 parts of vermiculite powder.

3. The process according to claim 1, characterized in that The flame retardant includes the following components in parts by mass: 10 to 20 parts of magnesium hydroxide, 24 to 32 parts of aluminum hydroxide, 16 to 24 parts of aluminum phosphate, and 24 to 44 parts of zinc borate.

4. The process according to claim 1, characterized in that The plasticizer includes the following components in parts by weight: 14 to 34 parts of dibutyl phthalate, 16 to 26 parts of dioctyl phthalate, 15 to 25 parts of dioctyl adipate, and 22 to 42 parts of dioctyl sebacate.

5. The process according to claim 1, characterized in that The shock-absorbing microspheres include the following components in parts by weight: 22 to 32 parts of silicon-aluminum-based hollow microspheres, 24 to 36 parts of hollow glass microspheres, 14 to 22 parts of polystyrene particles, 13 to 23 parts of rubber powder, and 8 to 14 parts of ceramic hollow microspheres.

6. The process according to claim 1, characterized in that The crosslinking agent is a mixture of dicumyl peroxide and triallyl isocyanurate.

7. The process according to claim 1, characterized in that The thickener is rosin resin.

8. The process according to claim 1, characterized in that The film-forming agent is dipropylene glycol n-butyl ether.

9. The process according to claim 1, characterized in that The defoamer is an organosilicon defoamer.

10. A water-based sound-insulating coating for construction, characterized in that: The invention is made by the production process of water-based sound-insulating coating for construction according to any one of claims 1 to 9.

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