KR102040283B1 - Manufacturing method of shell powder for paint and paint composition containing it - Google Patents

Abstract

The present invention relates to an eco-friendly flame retardant paint and a method for manufacturing the same. The method for manufacturing an eco-friendly retardant paint comprises: a first step of manufacturing a first sintered body by performing a first sintering on a shell; a second step of manufacturing a first crude pulverized material by pulverizing the first sintered body; a third step of manufacturing a second sintered body by pulverizing the first crude pulverized material; a fourth step of manufacturing a second crude pulverized material by pulverizing the second sintered body; a fifth step of manufacturing a shell powder by pulverizing the second crude pulverized material; and a sixth step of manufacturing a shell powder surface-treated by surface-treating the shell powder with a silane compound including a vinyl group at an end, wherein titanium dioxide is mixed and pulverized with the second sintered body in the fourth step of manufacturing the second crude pulverized material.

Description

Eco-friendly flame retardant paints and manufacturing method {Manufacturing method of shell powder for paint and paint composition containing it}

TECHNICAL FIELD The present invention relates to a flame retardant paint and a method for manufacturing the same, which are used in paints and have air purification, antistatic and antibacterial properties.

Due to changes in the residential environment that have been going on for decades, modern people face various health risks. Most commonly used residential spaces are concrete buildings, which release the cement toxicity of these concrete buildings, threatening the health of modern people.

In addition, the paint applied to concrete contains a large amount of harmful components to the human body, thereby continually releasing substances that harm the human body into the building.

In particular, VOCs (Volatile Orgamic Compounds, VOCs), which cause sick house syndrome, are generic terms of organic compounds that evaporate easily into the atmosphere due to low vapor pressure. Benzene, formaldehyde, toluene, xylene, ethylene, styrene It is a concept that includes all carcinogens such as acetaldehyde.

In order to reduce the harm caused by such volatile organic compounds, a porous material such as charcoal is added to the paint, but when the charcoal is added to the interior material, there is a problem that the aesthetics are damaged due to the unique color.

On the other hand, due to the climate characteristics of Korea, which has four distinct seasons, ventilation is difficult due to the use of cold and heaters in summer and winter, and difficult to ventilate due to fine dust in spring or autumn. In this case, an environment in which mold or bacteria are easily propagated in the air trapped inside the room is created, and a countermeasure for preventing the breeding of indoor bacteria is also required.

Republic of Korea Patent Publication No. 10-2005-0110878

An object of the present invention is to provide an environmentally friendly flame retardant paint excellent in flame retardancy, radon reduction and a method for producing the same.

Another object of the present invention is to provide an environmentally friendly flame retardant paint excellent in air purification and antibacterial activity and a method of manufacturing the same.

Eco-friendly flame retardant paint manufacturing method according to the present invention comprises a first step of producing a first fired body by firing a shell;

A second step of pulverizing the first fired body to produce a first coarse pulverized product;

A third step of firing the first crude powder to produce a second firing body;

A fourth step of preparing a second coarse powder by pulverizing the second plastic body;

A fifth step of preparing a shell powder by pulverizing the second crude powder; And

And a sixth step of preparing the shell-treated powder by surface-treating the shell powder with a silane compound containing a vinyl group at the end thereof.

The second crude powder manufacturing step is characterized in that the titanium dioxide and the mixed together with the second firing body to pulverize.

The titanium dioxide in the environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention may have an average particle diameter of 0.5 to 30 ㎛.

In the environment-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the first crude powder may have an average particle diameter of 300 μm or more.

In the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the second crude powder may have an average particle diameter of 50 μm or more.

In the environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the shell powder may have an average particle diameter of 5 to 30 ㎛.

In the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the titanium dioxide may be mixed 1 to 10 parts by weight with respect to 100 parts by weight of the first coarse crushed material.

Eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention may further comprise a seventh step of mixing the shell-treated powder, acrylic emulsion resin, titanium dioxide and clay after the sixth step.

In the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the seventh step may be a step of mixing 20 to 50 parts by weight of shell powder, 5 to 30 parts by weight of clay with respect to 100 parts by weight of the acrylic emulsion resin.

In the environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the clay may be one or two or more selected from montmorillonite, bentonite, hectorite, baydelite, nontronite, saponite, laponite and dolomite.

The sixth step in the environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention may be a step of immersing the shell powder in a silane compound solution containing a vinyl group at the end.

The present invention also provides an eco-friendly flame retardant paint, the eco-friendly flame retardant paint according to the present invention may be prepared by an environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention.

Environment-friendly flame-retardant paint manufacturing method according to the present invention by minimizing the pore breakage generated during the grinding process by mixing and grinding the shell plastic body and titanium dioxide, by ensuring the homogeneity of the particle diameter, flame retardancy, air purification, electrostatic There is an advantage that can produce a hazardous environment responsive paint excellent in prevention, radon reduction and antibacterial.

Figure 1 shows the antimicrobial test results of the paint according to an embodiment of the present invention.
Figure 2 shows the humidity test results of the paint according to an embodiment of the present invention.
Figure 3 shows the semi-combustible test results of the paint according to an embodiment of the present invention.
Figure 4 shows the radon release test results of the paint according to an embodiment of the present invention.

Advantages and features of the embodiments of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the embodiments of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the contents throughout the specification.

Eco-friendly flame retardant paint manufacturing method according to the present invention comprises a first step of producing a first fired body by firing the shell first;

A second step of pulverizing the first fired body to produce a first coarse pulverized product;

A third step of firing the first crude powder to produce a second baked body;

A fourth step of preparing a second coarse powder by pulverizing the second plastic body;

A fifth step of preparing a shell powder by pulverizing the second crude powder; And

And a sixth step of preparing the shell-treated powder by surface-treating the shell powder with a silane compound containing a vinyl group at the end thereof.

The second crude powder manufacturing step is characterized in that the titanium dioxide and the mixed together with the second firing body to pulverize.

Environment-friendly flame-retardant paint and a method for manufacturing the same according to the present invention is a shell powder produced by mixing and grinding titanium dioxide with the second plastic body, while going through the sequential firing and grinding step of the first to fifth steps described above There is an advantage that can prevent the problem of pore break in the grinding process, and can produce a shell powder having a uniform particle size distribution.

Typically, the coating composition often contains an inorganic material such as calcium carbonate as a filler, and shell powder may be used as a substitute for such calcium carbonate. These shell powders themselves have a neutralizing ability to neutralize some harmful components, but the applicant has controlled much of the research to improve the inherent properties of the shell powder without the addition of additional additives by controlling the manufacturing process of the shell powder. Was performed.

As a result, the first to fifth steps described above are sequentially processed, and titanium dioxide is mixed and pulverized together in the fourth step, thereby minimizing pore destruction inevitably occurring in the crushing process with an unexpected effect, without adding other substances. There is an advantage that can maximize the inherent characteristics of the shell powder. Furthermore, the eco-friendly flame retardant paint and shell powder prepared by the manufacturing method of the present invention have excellent air purification ability to remove volatile organic compounds, etc., and thus can achieve an air purification effect even with a small amount of use. There is an advantage that can prevent problems such as degradation of the durability or adhesion of the paint itself that can occur during the functional addition process.

Furthermore, the shell powder prepared by the manufacturing method of the present invention is not only air purifying ability by removing volatile organic compounds, but also has excellent radon reduction and antibacterial ability, prevents static electricity, and is flame retardant, which is safe from fire. have.

Environment-friendly flame retardant paint and a method for manufacturing the same according to the present invention comprises a first step of producing a first fired body by firing the shell first; A second step of pulverizing the first fired body to produce a first coarse pulverized product; A third step of firing the first crude powder to produce a second baked body; A fourth step of preparing a second coarse powder by pulverizing the second plastic body; And a fifth step of preparing the shell powder by pulverizing the second crude powder.

At this time, the firing of the first step or the third step may be performed at 900 to 1250 ℃, specifically, 1000 to 1200 ℃. In the above-described range, problems such as decay due to organic matter remaining in the shell can be prevented without consuming too much energy for firing the shell. More specifically, when the firing of the first step or the third step is performed at 900 ° C. or lower, it is difficult to secure sufficient porosity due to residual organic matters, and organic matters may remain and decay. When the three-step calcination is performed at 1250 ° C. or more, the calcium carbonate may be dissolved to block the pores, or the shell may be easily broken when crushed due to overfiring, thereby causing the pore structure to be destroyed. At this time, the execution time of the firing step may vary depending on the type, thickness and amount of the shell used, of course, may be performed for 30 minutes to 10 hours, specifically 1 to 5 hours, the present invention is limited thereto It is not.

In the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the second step, the fourth step and the fifth step of performing the grinding may be performed by varying the target particle size, respectively. Specifically, the average particle diameter of the first crude powder produced after the second step may be 300 μm or more, specifically 300 to 1000 μm, more specifically 500 to 800 μm. In addition, the average particle diameter of the second coarse pulverized product passed through the fourth step may be 50 μm or more, specifically 50 to 300 μm, more specifically 100 to 250 μm, and the final manufactured shell powder may have an average particle size. 5 to 30 μm.

As described above, when the average particle diameter of the pulverized product or shell powder produced in the second, fourth and fifth steps of pulverization satisfies the above-mentioned range, the formation of homogeneous particles with less energy in a short time is not possible. In addition, in combination with the above-described first and third steps of firing, the shell is broken into an excessively fine powder, and the pore structure is destroyed, or further, the pores of the shell powder are blocked to significantly inhibit the inherent characteristics of the shell powder. This can prevent problems.

That is, the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention by sequentially arranging the first to fifth steps described above, to improve the efficiency of the grinding, further reducing the problems that may occur in the grinding process There are advantages to it.

Furthermore, by satisfying the average particle diameter of the shell powder of 5 to 30 ㎛, it is possible to uniformly mix when mixing with the paint composition later, there is an advantage in the superior phase stability, and does not impair the aesthetics when applying the coating composition.

In addition, the eco-friendly flame retardant paint and a method for manufacturing the same according to an embodiment of the present invention is an additional step such as washing, drying, salt removal, foreign material removal or metal material removal before, after or between each of the first to fifth steps. Of course, it may further include, which does not affect the scope of the present invention. Preferably the washing and salt removal of the shell before the first step may be carried out, and further comprising the step of removing foreign matters after the first step and the third step of the plastic body production, but the present invention is limited thereto It is not.

In the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the titanium dioxide may have an average particle diameter of 0.5 to 30 ㎛, specifically 1 to 20 ㎛. In the above-described range, while preventing pores of the shell due to too small titanium dioxide particle size to prevent the adsorption capacity to the material such as volatile organic compounds, and the like, while dispersibility and later in the manufacture of the paint composition due to too large particle size The problem of low phase stability can be prevented. Furthermore, the average particle diameter of the titanium dioxide introduced in the fourth step satisfies the above-mentioned range, thereby improving the grinding efficiency while reducing the surface roughness by acting on the surface of the pulverized shell powder, and part of the particle size in the grinder. Due to the buffering action, there is an advantage in that the shell is prevented from breaking into excessively small powder. Shell powder prepared by this advantage has the advantage of having excellent air purification, radon reduction, antibacterial properties when mixed with the coating composition.

In the eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the titanium dioxide mixed with the secondary fired body, 1 to 10 parts by weight, specifically 2 to 7 parts by weight compared to 100 parts by weight of the second fired body It may be included, it is difficult to achieve the effect of the above-described titanium dioxide when the titanium dioxide is added in a small amount of less than 1 part by weight, when added by more than 10 parts by weight, the grinding time of the shell increases, mixed with the paint composition Problems can affect the physical properties.

Eco-friendly flame retardant paint manufacturing method according to the present invention includes a sixth step of producing a surface-treated shell powder by surface treatment of the shell powder with a silane compound containing a vinyl group at the end after the fifth step. By going through the sixth step described above, when mixing with other paint compositions, it is possible to achieve uniform mixing, to promote long-term stability, and to prevent separation of shell particles.

Specifically, the silane compound containing a vinyl group at the terminal is one selected from vinyltriethoxysilane, vinyltrimethoxysilane, vinylchlorosilane, methacryloxy propyl triethoxysilane and methacryloxypropyl triethoxysilane. Or two or more.

In addition, the sixth step may be performed by immersing the shell powder in the silane compound solution containing a vinyl group at the end, wherein the immersion time may vary depending on the amount of shell powder soaked, but 5 to 60 minutes, specifically It may be 7 to 40 minutes. Further, the amount of the silane compound including a vinyl group at the terminal may vary depending on the amount of shell powder to be surface treated, and specifically 2 to 20 parts by weight, preferably 3 to 15 parts by weight, based on 100 parts by weight of the shell powder. Can be added.

In this case, the solvent used in the silane compound solution may be used without limitation in the case of an organic solvent, and in one specific and non-limiting example, the organic solvent may be dichloromethane, tetrahydrofuran, dimethylformamide, ethanol, methanol, acetone, and dimethyl. It may be one or two or more selected from sulfoxide and dimethylformamide, but the present invention is not limited thereto.

Eco-friendly flame retardant paint manufacturing method according to an embodiment of the present invention further comprises a seventh step of mixing the shell powder, acrylic emulsion resin, titanium dioxide and clay after the sixth step. After preparing the shell powder surface-treated through the above-described first to sixth step, and then mixing it with other paint composition has the advantage of having higher functionality than when using the existing calcium carbonate or shell powder manufactured by conventional methods There is this.

At this time, the clay is not limited in the case of clay that can be used in the composition, such as paint, specifically one or two or more selected from montmorillonite, bentonite, hectorite, baydelite, nontronite, saponite, laponite and dolomite And may preferably be bentonite, but the present invention is not limited thereto.

More preferably, the clay according to an embodiment of the present invention may have an average particle diameter of 10 to 100 nm, specifically 15 to 80 nm. While ensuring the dispersibility of the clay in this range, it is possible to prevent degradation of properties such as adhesion of the coating composition itself due to mixing of the clay.

In the environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention, the sixth step may be a step of mixing 20 to 50 parts by weight of shell powder and 5 to 30 parts by weight of clay with respect to 100 parts by weight of the acrylic emulsion resin. Within this range, it is possible to produce a coating composition having high air purification performance and excellent durability and adhesion.

Specifically, in the environment-friendly flame retardant paint manufacturing method according to an embodiment of the present invention may be included 20 to 50 parts by weight, more specifically 30 to 45 parts by weight compared to 100 parts by weight of the acrylic emulsion resin. In this range, it is possible to maximize the air purification and antimicrobial properties, it is difficult to secure sufficient air purification and antimicrobial when the content of the shell shell powder for paint is less than the above range, and the application of paint shell shell powder when the amount is larger than the above range Deterioration problems such as this may occur.

In addition, the sixth step in the environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention may further include an additive for securing various functions in addition to the above-described materials, the present invention is not limited thereto. In one specific and non-limiting example, the additive may be one or two or more selected from a dispersant, a thickener, and a leveling agent, and the amount of the additive may be appropriately adjusted in consideration of the type of each additive, the specific additive material, and the application field of the paint. Of course, the present invention is not limited thereto.

The present invention also provides an eco-friendly flame retardant paint, the eco-friendly flame retardant paint according to the present invention may be prepared by an environmentally friendly flame retardant paint manufacturing method according to an embodiment of the present invention. Eco-friendly flame retardant paints according to the present invention by containing the above-described components, absorbing substances such as volatile organic compounds, excellent air purification ability, excellent antibacterial, can prevent static electricity, and furthermore non-combustible fire prevention effect There is also an excellent advantage.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated concretely by an Example and a comparative example. The following examples are merely to aid the understanding of the present invention, and the scope of the present invention is not limited by the following examples.

[Production Example 1]

5 kg of large clam shells are washed in a washing machine, and foreign substances such as gravel and sand are removed and soaked in water for 48 hours to remove salt. The salted seashell shell was calcined at 1150 ° C. for 3 hours in a kiln to prepare a first calcined body.

The prepared first fired body is put in a multipurpose grinder, and grinding is primarily performed so that the average particle diameter becomes 550 µm. The prepared first crude powder is put back into a firing furnace and calcined at 1150 ° C. for 3 hours to prepare a second firing body. The prepared second fired body was put into a high-density particle mill, and ground to have an average particle diameter of 70 µm. At this time, the titanium dioxide particles having an average particle diameter of 20 μm were mixed by 3 parts by weight with respect to 100 parts by weight of the second fired body, and the grinding was performed together. The pulverized second coarse pulverized product was removed by using a magnetic separator to remove metallic foreign matter, and then put into a high-density particle pulverizer to carry out pulverization so that the average particle size was 20 μm, thereby finally preparing a shell shell powder for coating.

After the addition of 8% by weight of vinyltriethoxy silane to the dichloromethane solvent in which the prepared shell powder is submerged, the mixture is stirred at 100 rpm for 20 minutes to perform surface modification, and the organic solvent is separated and dried to obtain a surface. Treated shell powder was prepared.

[Production Example 2]

It was prepared in the same manner as in Preparation Example 1, but by setting the temperature of the firing furnace for the production of the first fired body and the second fired body to 1300 ℃ to prepare a surface-treated shell powder.

[Manufacture example 3]

It was prepared in the same manner as in Preparation Example 1, but by setting the temperature of the firing furnace for the production of the first fired body and the second fired body to 800 ℃ to prepare a surface-treated shell powder.

[Production Example 4]

Prepared in the same manner as in Preparation Example 1, but mixed with titanium dioxide 0.5 parts by weight relative to 100 parts by weight of the second calcined body to prepare a surface-treated shell powder.

Production Example 5

Prepared in the same manner as in Preparation Example 1, by mixing 15 parts by weight of titanium dioxide compared to 100 parts by weight of the second fired body to prepare a surface-treated shell powder.

[Manufacture example 6]

Prepared in the same manner as in Preparation Example 1, but mixed with the average particle diameter of the used titanium dioxide 10nm to prepare a surface-treated shell powder.

[Manufacture example 7]

Prepared in the same manner as in Preparation Example 1, the surface of the shell powder was prepared by mixing the average particle diameter of the used titanium dioxide 50㎛.

[Manufacture example 8]

It was prepared in the same manner as in Preparation Example 1, but the surface treatment was prepared by grinding to make the average particle diameter of the first coarse pulverization to 100 ㎛.

[Manufacture example 9]

Prepared in the same manner as in Preparation Example 1, the second calcined body was put into a high-density particle mill, and immediately pulverized to have an average particle diameter of 20 ㎛ to prepare a shell-treated surface treatment.

[Production Example 10]

Prepared in the same manner as in Preparation Example 1, the surface treatment was prepared by milling the powder so that the average particle diameter of the second crude powder is 30 ㎛.

[Production Example 11]

Prepared in the same manner as in Preparation Example 1, but was ground without mixing titanium dioxide to prepare a surface-treated shell powder.

[Manufacture example 12]

Prepared in the same manner as in Preparation Example 1, the step of preparing a second plastic body was omitted and immediately subjected to grinding to prepare a surface-treated shell powder.

Production Example 13

It was prepared in the same manner as in Preparation Example 1, but titanium dioxide was added in the step of preparing the first crude powder to prepare a shell-treated powder.

Production Example 14

Prepared in the same manner as in Preparation Example 1, the titanium dioxide was added to the step of preparing a shell powder by grinding the second milled powder to prepare a shell-treated surface powder.

[Production Example 15]

It was prepared in the same manner as in Preparation Example 1, but the shell powder was prepared by omitting the surface modification step.

Using the shell powder prepared in Preparation Examples 1 to 14 described above, the coating compositions of Examples and Comparative Examples were prepared.

Example 1

The flask was mixed with 100 g of acrylic emulsion resin composition (solid content of 45% by weight), 35 g of the shell powder prepared in Preparation Example 1, 50 g of a dispersion containing 15 g of bentonite nanopowder, 0.5 g of a dispersant, and 0.5 g of a thickener. And it was stirred for 1 hour at 300 rpm to prepare a coating composition.

[Examples 2 to 10]

Prepared in the same manner as in Example 1, using the shell powder prepared in Preparation Examples 2 to 10 to prepare a coating composition of Examples 2 to 10, respectively.

Example 11

Prepared in the same manner as in Example 1, 60 g of the shell powder prepared in Preparation Example 1 was added to prepare a coating composition.

Example 12

Manufactured in the same manner as in Example 1, 5 g of the shell powder prepared in Preparation Example 1 was added to prepare a coating composition.

Comparative Example 1

Manufactured in the same manner as in Example 1, a coating composition was prepared by mixing the same amount of calcium carbonate powder instead of the shell powder prepared in Preparation Example 1.

[Comparative Examples 2 to 5]

Prepared in the same manner as in Example 1, using the shell powder prepared in Preparation Examples 11 to 14 to prepare a coating composition.

Comparative Example 6

In the same manner as in Example 1, the paint was prepared by mixing the untreated shell powder, but it was confirmed that additional experiments were impossible due to phase separation by the untreated shell powder.

Experimental Example 1. Evaluation of deodorizing ability

The coating compositions prepared in Examples and Comparative Examples were applied at 10 * 10 cm, thickness 10 mm, and dried for 24 hours to prepare test pieces, and the following deodorization evaluation was performed using the prepared test pieces.

Experimental Example 1-1. Ammonia Deodorization Evaluation

A deodorization experiment was carried out for ammonia according to the KICM-FIR-1004 method and the results are shown in Table 1. At this time, the initial concentration was 500 ppm, the blank concentration was set to 30 minutes-480 ppm, 60 minutes-470 ppm, 90 minutes-450 ppm, 120 minutes-440 ppm, the concentration of the gas is a gas detector tube Measured by. The deodorization rate (%) was measured by substituting the measured ammonia concentration into Equation 1 below, and the results are shown in Table 1.

[Equation 1]

{(blank density)-(sample concentration)} / (blank density) × 100

Experimental Example 1-2. Formaldehyde Deodorization Evaluation

Deodorization experiments were performed on formaldehyde according to the KICM-FIR-1085 method and the results are shown in Table 1. At this time, the initial concentration was 81 ppm, and the experiment was performed by setting the blank concentration to 78 ppm, 75 ppm, 72 ppm, and 70 ppm as 30, 60, 90, and 120 minutes elapsed. Was substituted in Equation 1 to measure the deodorization rate (%) and it is shown in Table 1.

Ammonia Deodorization Rate (%) Formaldehyde Deodorization Rate (%) 30 minutes 60 minutes 90 minutes 120 minutes 30 minutes 60 minutes 90 minutes 120 minutes Example One 95.8 97.2 97.9 98.5 77.8 78.6 79.5 81.2 2 78.5 80.4 82.2 84.4 59.4 60.3 61.7 62.2 3 80.5 82.4 83.6 85.1 60.0 61.4 62.8 63.5 4 81.4 83.6 84.2 85.9 61.3 62.1 63.4 64.2 5 83.5 85.7 86.6 87.4 65.4 66.7 67.3 68.7 6 75.8 76.1 77.2 77.9 57.2 58.1 59.2 59.9 7 73.5 74.1 74.8 75.7 55.4 56.3 57.4 59.1 8 78.1 79.2 79.9 80.5 58.7 59.6 60.3 61.4 9 83.4 85.0 85.9 86.4 63.7 64.8 65.4 66.2 10 80.2 81.5 82.4 83.5 62.7 63.4 63.9 65.2 11 89.1 90.4 91.3 92.4 68.4 69.2 71.1 72.5 12 71.5 72.1 72.5 74.1 66.2 67.9 68.4 71.2 Comparative example One 59.1 60.4 62.4 63.2 47.1 50.2 51.4 51.9 2 69.1 70.5 71.2 73.5 50.6 51.2 53.0 53.9 3 52.3 53.6 54.7 55.1 49.7 48.3 49.2 50.1 4 70.4 72.8 73.4 74.9 64.2 65.1 65.9 66.3 5 71.2 71.9 72.2 73.5 65.1 65.9 66.4 67.0

Referring to Table 1, it can be seen that the coating composition according to an embodiment of the present invention has a high deodorization rate for ammonia and acetaldehyde, in particular, the coating composition comprising shell powder prepared in Preparation Example 1 has an excellent deodorizing effect. You can check it.

Experimental Example 2. Confirmation of antimicrobial activity of the coating composition

The antimicrobial activity of the coating composition of Example 1 was commissioned for test analysis, and the results are shown in FIG. 1. Referring to Figure 1, the paint of Example 1 has a bacterial reduction rate of 99% or more against E. coli and Staphylococcus aureus, it can be confirmed that it has antibacterial properties.

Experimental Example 3. Confirming the humidity control of the coating composition

A test and analysis request for the humidity control of the coating composition of Example 1, the results are shown in FIG. Referring to Figure 2, it can be seen that the coating composition of Example 1 has a moisture absorbing and moisture-proof ability to have an indoor humidity control ability, and can have an antistatic effect by such moisture absorption and moisture-proof.

Experimental Example 4. Confirmation of Nonflammability of Coating Composition

The semi-combustible experimental test for the coating composition of Example 1 was requested, and the results are shown in FIG. 3. Referring to Figure 3, it can be seen that the coating composition of Example 1 has a semi-incombustibility.

Claims (11)

A first step of manufacturing the first fired body by first firing the shell;
A second step of pulverizing the first fired body to produce a first coarse pulverized product;
A third step of firing the first crude powder to produce a second baked body;
A fourth step of preparing a second coarse powder by pulverizing the second plastic body;
A fifth step of preparing a shell powder by pulverizing the second crude powder; And
And a sixth step of preparing a shell-treated shell powder by surface-treating the shell powder with a silane compound including a vinyl group at the end thereof.
The second crude powder manufacturing step is an environmentally friendly flame-retardant paint manufacturing method, characterized in that by mixing and grinding the titanium dioxide with the second plastic body. The method of claim 1,
The titanium dioxide has an average particle diameter of 0.5 to 30 ㎛ eco-friendly flame retardant paint manufacturing method. The method of claim 1,
The first crude powder has an average particle diameter of 300 ㎛ or more eco-friendly flame retardant paint manufacturing method. The method of claim 1,
The second crude powder has an average particle diameter of 50 ㎛ or more eco-friendly flame retardant paint manufacturing method. The method of claim 1,
The shell powder has an average particle diameter of 5 to 30 ㎛ eco-friendly flame retardant paint manufacturing method. The method of claim 2,
The titanium dioxide is an environmentally friendly flame retardant paint manufacturing method is mixed 1 to 10 parts by weight relative to 100 parts by weight of the second plastic body. The method of claim 1,
Eco-friendly flame retardant paint manufacturing method further comprises a seventh step of mixing the shell powder, acrylic emulsion resin and clay after the sixth step. The method of claim 7, wherein
The seventh step is an eco-friendly flame retardant paint manufacturing method, characterized in that 20 to 50 parts by weight of shell powder, and 5 to 30 parts by weight of clay compared to 100 parts by weight of the acrylic emulsion resin. The method of claim 7, wherein
The clay is one or more environmentally friendly flame retardant paint manufacturing method selected from montmorillonite, bentonite, hectorite, beadelite, nontronite, saponite, laponite and dolomite. The method of claim 1,
The sixth step is the step of immersing the shell powder in a silane compound solution containing a vinyl group at the end of the environmentally friendly flame retardant paint manufacturing method. Eco-friendly flame retardant paint prepared by the method of any one of claims 1 to 10 selected.

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