Lightweight odorless water-based indoor decorative coating and preparation method thereof

Abstract

The invention relates to a light odorless water-based indoor decorative coating and a preparation method thereof. The coating is prepared by mixing the following raw materials in percentage by weight: 15%-20% of water, 0.1%-0.2% of a pH regulator, 0.1%-0.2% of a wetting agent, 0.2%-0.4% of a dispersing agent, 0.20%-0.4% of a defoaming agent, 0.2%-0.4% of a thickening agent, 0.25%-0.5% of bentonite, 37%-40% of sintered colored sand, 3%-5% of shell powder, 3%-5% of diatomite, 3%-6% of closed cell perlite particles and 21%-25% of odor-free acrylic emulsion. The coating is prepared from 1%-3% of hollow glass microspheres, 0.5%-1% of a propylene glycol antifreezing agent, 0.65%-1% of a coalescing agent, 0.2%-0.4% of a mildew preventive, 0.1%-0.25% of a bactericide, 1%-3% of nano copper paste and 0.1%-0.15% of an antibacterial agent. The light odorless water-based indoor decorative coating prepared by the invention not only has excellent decorative performance, but also has multiple functions of environmental protection, antibiosis, mildew resistance, weather resistance, heat insulation, good texture performance and the like.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to a light, odorless water-based interior decorative coating and a preparation method thereof. Background Art

[0002] With the enhancement of people's environmental awareness and the increase in demand for interior decoration, water-based paint has become the mainstream trend of interior decoration paint due to its advantages such as environmental protection, low odor and easy construction.

[0003] However, the water-based paints currently on the market still have deficiencies in functionality and decorativeness, especially in terms of antibacterial, mildew-proof, weather resistance, etc. Therefore, it is particularly important to develop an environmentally friendly, high-performance water-based interior decorative paint. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a light and odorless water-based interior decorative paint and a preparation method thereof.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A light and odorless water-based interior decorative paint, characterized in that it is made of the following raw materials in weight percentage: water 15%-20%, pH regulator 0.1%-0.2%, wetting agent 0.1%-0.2%, dispersant 0.2%-0.4%, defoamer 0.20%-0.4%, thickener 0.2%-0.4%, bentonite 0.25-0.5%, sintered colored sand 37-40 %, shell powder 3-5%, diatomaceous earth 3-5%, closed-cell perlite particles 3%-6%, odorless acrylic emulsion 21%-25%, hollow glass microspheres 1%-3%, propylene glycol antifreeze 0.5%-1%, film-forming aid 0.65%-1%, mildew inhibitor 0.2%-0.4%, bactericide 0.1%-0.25%, nano copper paste 1%-3%, antibacterial agent 0.1%-0.15%.

[0006] In the present invention, the pH value regulator is a low-odor sodium hydroxide aqueous solvent.

[0007] In the present invention, the shell powder is processed by nanoporation technology, and the shell powder is sieved through a 750-mesh sieve.

[0008] A method for preparing a light and odorless water-based interior decoration paint, characterized in that it comprises the following steps: Step 1: Add 40% water into the mixing container of the agitator, turn on the agitator, gradually add the pH regulator, wetting agent, and dispersant, and keep stirring until fully mixed to form a stable premixed solution; Step 2: Add bentonite, shell powder and diatomaceous earth to the premixed liquid in sequence, and continue stirring until the ingredients are evenly dispersed to form a coating base liquid; Step 3: Pour the sintered colored sand, closed-cell perlite particles, hollow glass microspheres and water into the stirring container of the stirrer, and keep stirring and mixing until fully mixed to obtain a coating filler mixture; Step 4: First mix the propylene glycol antifreeze, film-forming aid, odorless acrylic emulsion, mildew inhibitor, bactericide, nano copper paste and antibacterial agent together to obtain a mixed emulsion, then add it to the stirring container of the blender, continue stirring until it is evenly dispersed, and obtain the finished paint product after stirring until it is evenly dispersed. After passing the test, it is packaged.

[0009] In the present invention, in step 1, the stirring speed of the stirrer is adjusted to 800 r / min, and the stirring time is 3-5 minutes.

[0010] In the present invention, in step 2, the stirring speed of the stirrer is adjusted to 1400 r / min, and the stirring time is 15-20 minutes.

[0011] In the present invention, the stirring speed of the stirrer is adjusted to 400 r / min, and the stirring time is 20-30 minutes.

[0012] In the present invention, the stirred sintered colored sand is divided into two parts, 75% of the sintered colored sand is sieved through a 70-mesh sieve, and the remaining part is sieved through an 80-mesh sieve.

[0013] In the present invention, sintered colored sand, closed-cell perlite particles, and hollow glass microspheres are put into a soaking container together, and all the remaining water is poured into the soaking container to soak the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres for 5-10 minutes. During the soaking process, the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres in the soaking container are stirred for about 30 seconds every 2 minutes.

[0014] In the present invention, in step 4, propylene glycol antifreeze agent, film-forming aid, odorless acrylic emulsion, mildewproof agent, bactericide, nano copper paste and antibacterial agent are first added into a mixing container, and then stirred for 5-10 minutes with a stirring tool.

[0015] Beneficial effects of the present invention: The light and odorless water-based interior decorative paint prepared by the present invention not only has excellent decorative properties, but also has multiple functions such as environmental protection, antibacterial, mildew-proof, weather-resistant, heat-insulating and good texture performance. In addition, the closed-cell perlite particles and hollow glass microspheres both have low-density characteristics. Their addition significantly increases the volume content of the finished coating, so that under the same coating area, the required amount of coating is greatly reduced, thereby effectively reducing the material usage and coating costs; and the closed-cell perlite particles and hollow glass microspheres also have certain heat insulation and humidity regulation effects, so that the coating can form a more uniform coating after coating, effectively improving the indoor heat insulation effect and humidity regulation ability, and meeting the user's high requirements for indoor environmental comfort. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below. Example 1

[0017] A lightweight, odorless water-based interior decorative paint, which is made of the following raw materials in weight percentage: 20% water, 0.1% pH regulator, 0.2% wetting agent, 0.4% dispersant, 0.4% defoamer, 0.3% thickener, 0.5% bentonite, 40% sintered colored sand, 5% shell powder, 5% diatomaceous earth, 3% closed-cell perlite particles, 21.4% odorless acrylic emulsion, 1% hollow glass microspheres, 1% propylene glycol antifreeze agent, 0.65% film-forming aid, 0.2% mildew inhibitor, 0.1% bactericide, 1% nano copper paste, and 0.15% antibacterial agent.

[0018] The preparation method of the light and odorless water-based interior decoration paint comprises the following steps: Step 1: Add 40% of the total amount of water in the formula into the stirring container of the stirrer, turn on the stirrer, adjust the stirring speed of the stirrer to 800r / min, gradually add the pH regulator, wetting agent, and dispersant, and keep stirring until fully mixed and uniform to form a stable premixed liquid. The stirring time of this step is 3-5 minutes; wherein the pH regulator is a low-odor sodium hydroxide aqueous solvent; Step 2: The stirring speed of the stirrer is adjusted to 1400r / min, and bentonite, shell powder and diatomaceous earth are added to the premixed liquid in turn, and the stirring is continued until the components are evenly dispersed to form a coating base liquid. The stirring time of this step is 15-20 minutes, and the stirrer is turned off after stirring; wherein, the shell powder is processed by nanoporous technology, and the shell powder is sieved through a 750-mesh sieve. The shell powder can effectively remove free formaldehyde, benzene, ammonia and other harmful substances in the air to achieve the purpose of purifying the air; Step 3: First, divide the sintered colored sand into two parts, 75% of the sintered colored sand is sieved through a 70-mesh sieve, and the remaining part is sieved through an 80-mesh sieve. Sintered sand of different colors can enrich the color of the decorative paint, and the paint has rich and colorful colors; then put the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres into a soaking container together, pour all the remaining water into the soaking container, and soak the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres for 5-10 minutes. During the soaking process, stir the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres in the soaking container for about 30 seconds every 2 minutes to make the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres as evenly distributed as possible. Soaking, so that the above particles can be better mixed with other materials; then pour all the sintered colored sand, closed-cell perlite particles, hollow glass microspheres and water in the soaking container into the stirring container of the stirrer, so that they are mixed with the coating base liquid; turn on the stirrer, adjust the stirring speed of the stirrer to 400r / min, keep stirring to mix the sintered colored sand, closed-cell perlite particles, hollow glass microspheres and water with the coating base liquid until fully mixed to obtain a coating filler mixture, the stirring time of this step is 20-30 minutes; the particle size of the hollow glass microspheres is between 150-250um; through the above treatment, the various components can be better dispersed and mixed together, improving the thermal insulation and construction performance of the coating; Step 4: first mix propylene glycol antifreeze, film-forming aid, odorless acrylic emulsion, mildewproof agent, bactericide, nano copper paste and antibacterial agent together to obtain a mixed emulsion, then add it to the stirring container of the stirrer, continue stirring until it is evenly dispersed, so that the mixed emulsion and the paint filler mixture are evenly mixed together, wherein the odorless acrylic emulsion improves the bonding strength and adhesion of the paint, and the water resistance, and the mildewproof agent, bactericide and antibacterial agent give the paint antibacterial and mildewproof functions; in addition, the nano copper particles in the nano copper paste have excellent antibacterial and mildewproof properties, contact with bacteria through charge attraction, destroy the bacterial cell wall, and cause the death of bacteria, thereby effectively preventing the growth of mold on the paint surface, and at the same time, adding nano copper paste to the paint can improve the overall stability of the paint and extend the service life of the paint; the stirring time of this step is 15-25 minutes, and the finished paint is obtained after stirring until it is evenly obtained, and it is packaged after passing the test.

[0019] In the above step 4, propylene glycol antifreeze, film-forming aid, odorless acrylic emulsion, mildewproof agent, bactericide, nano copper paste and antibacterial agent are added to a mixing container, and then stirred with a stirring tool for 5-10 minutes to mix them evenly to obtain a mixed emulsion. By first mixing propylene glycol antifreeze, film-forming aid, odorless acrylic emulsion, mildewproof agent, bactericide, nano copper paste and antibacterial agent, the propylene glycol antifreeze, film-forming aid, mildewproof agent, bactericide, nano copper paste and antibacterial agent are more evenly dispersed, so that they are better mixed with the paint filler to ensure the performance of the paint.

[0020] The performance test results of this embodiment are shown in Table 1 below:

[0021] In this embodiment, through scientific proportioning and process optimization, the light and odorless water-based interior decorative paint prepared by the present invention not only has excellent decorative performance, but also has multiple functions such as environmental protection, antibacterial, mildew-proof, weather-resistant, heat-insulating and good texture performance. In addition, the closed-cell perlite particles and hollow glass microspheres both have low-density characteristics. Their addition significantly increases the volume content of the finished paint, so that under the same coating area, the required amount of paint is greatly reduced, thereby effectively reducing the material consumption and coating costs; and the closed-cell perlite particles and hollow glass microspheres also have certain heat insulation and humidity regulation functions, so that the paint can form a more uniform coating after coating, effectively improving the indoor heat insulation effect and humidity regulation ability, and meeting the user's high requirements for indoor environmental comfort. Example 2

[0022] A light and odorless water-based interior decorative paint is prepared by mixing the following raw materials in percentage by weight: 15% water, 0.15% pH regulator, 0.15% wetting agent, 0.27% dispersant, 0.3% defoamer, 0.2% thickener, 0.33% bentonite, 37% sintered colored sand, 5% shell powder, 5% diatomaceous earth, 6% closed-cell perlite particles, 24% odorless acrylic emulsion, 2% hollow glass microspheres, 0.8% propylene glycol antifreeze, 1% film-forming aid, 0.2% mildew inhibitor, 0.2% bactericide, 2.3% nano copper paste, and 0.1% antibacterial agent.

[0023] The performance test results of this embodiment are shown in Table 2 below: Example 3

[0024] A lightweight, odorless water-based interior decorative paint is prepared from the following raw materials in weight percentage: 20% water, 0.2% pH regulator, 0.1% wetting agent, 0.2% dispersant, 0.2% defoamer, 0.4% thickener, 0.25% bentonite, 37.4% sintered colored sand, 3% shell powder, 3% diatomaceous earth, 6% closed-cell perlite particles, 21% odorless acrylic emulsion, 3% hollow glass microspheres, 0.5% propylene glycol antifreeze, 1% film-forming aid, 0.4% mildew inhibitor, 0.25% bactericide, 3% nano copper paste, and 0.1% antibacterial agent.

[0025] The performance test results of this embodiment are shown in Table 3 below: Table 3

[0026] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means belongs to the protection scope of the present invention.

Claims

1. A light, odorless water-based interior decoration paint, characterized in that: The invention is composed of the following raw materials in weight percentage: 15%-20% of water, 0.1%-0.2% of pH regulator, 0.1%-0.2% of wetting agent, 0.2%-0.4% of dispersant, 0.20%-0.4% of defoamer, 0.2%-0.4% of thickener, 0.25-0.5% of bentonite, 37-40% of sintered colored sand, 3-5% of shell powder, 3-5% of diatomaceous earth, 3%-6% of closed-cell perlite particles, 21%-25% of odorless acrylic emulsion, 1%-3% of hollow glass microspheres, 0.5%-1% of propylene glycol antifreeze agent, 0.65%-1% of film-forming aid, 0.2%-0.4% of mildew inhibitor, 0.1%-0.25% of bactericide, 1%-3% of nano copper paste and 0.1%-0.15% of antibacterial agent.

2. A light and odorless water-based interior decoration paint according to claim 1, characterized in that: The pH value regulator is a low-odor sodium hydroxide aqueous solvent.

3. A light and odorless water-based interior decoration paint according to claim 1, characterized in that: The shell powder is processed by nanoporation technology, and the shell powder is sieved through a 750-mesh sieve.

4. A method for preparing a light and odorless water-based interior decoration paint, characterized in that: The following steps are involved: Step 1: Add 40% water into the mixing container of the agitator, turn on the agitator, gradually add the pH regulator, wetting agent, and dispersant, and keep stirring until fully mixed to form a stable premixed solution; Step 2: Add bentonite, shell powder and diatomaceous earth to the premixed liquid in sequence, and continue stirring until the ingredients are evenly dispersed to form a coating base liquid; Step 3: Pour the sintered colored sand, closed-cell perlite particles, hollow glass microspheres and water into the stirring container of the stirrer, and keep stirring and mixing until fully mixed to obtain a coating filler mixture; Step 4: First mix the propylene glycol antifreeze, film-forming aid, odorless acrylic emulsion, mildew inhibitor, bactericide, nano copper paste and antibacterial agent together to obtain a mixed emulsion, then add it to the stirring container of the blender, continue stirring until it is evenly dispersed, and obtain the finished paint product after stirring until it is evenly dispersed. After passing the test, it is packaged.

5. The method for preparing a light and odorless water-based interior decoration paint according to claim 4, characterized in that: In step 1, the stirring speed of the stirrer is adjusted to 800 r / min, and the stirring time is 3-5 minutes.

6. The method for preparing a light and odorless water-based interior decoration paint according to claim 4, characterized in that: In step 2, the stirring speed of the stirrer is adjusted to 1400 r / min, and the stirring time is 15-20 minutes.

7. The method for preparing a light and odorless water-based interior decoration paint according to claim 4, characterized in that: In step three, the stirring speed of the stirrer is adjusted to 400 r / min, and the stirring time is 20-30 minutes.

8. The method for preparing a light and odorless water-based interior decoration paint according to claim 4, characterized in that: In step three, the stirred sintered colored sand is divided into two parts, 75% of the sintered colored sand is sieved through a 70-mesh sieve, and the remaining part is sieved through an 80-mesh sieve.

9. The method for preparing a light and odorless water-based interior decoration paint according to claim 4, characterized in that: In step three, sintered colored sand, closed-cell perlite particles, and hollow glass microspheres are placed in a soaking container together, and the remaining water is poured into the soaking container to soak the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres for 5-10 minutes. During the soaking process, the sintered colored sand, closed-cell perlite particles, and hollow glass microspheres in the soaking container are stirred for about 30 seconds every 2 minutes.

10. The method for preparing a light and odorless water-based interior decoration paint according to claim 4, characterized in that: In step 4, propylene glycol antifreeze agent, film-forming aid, odorless acrylic emulsion, mildew inhibitor, bactericide, nano copper paste and antibacterial agent are first added into a mixing container, and then stirred for 5-10 minutes with a stirring tool.

Images