KR20060016977A - Composition for ceramic paint - Google Patents

Abstract

The present invention relates to a composition for ceramic coating, using a ceramic material excellent in emitting far infrared rays, which is environmentally friendly, has excellent deodorization and antibacterial properties, and in particular, has excellent adhesion to the substrate and has excellent water resistance, durability and flame resistance. Provides a ceramic coating composition having excellent physical properties, which can be usefully used as a coating paint in various fields such as civil engineering and ships, including interior and exterior painting of various buildings, and ceramic coating obtained by mixing water with the ceramic coating composition. do.

Description

Composition for ceramic paints

The present invention relates to a composition for ceramic coating, and more particularly, using a ceramic material emitting far-infrared rays, which is environmentally friendly, excellent in deodorization and antibacterial properties, and in particular, has excellent adhesion to the substrate and is also excellent in water resistance, durability and flame retardancy. The present invention relates to a ceramic coating composition having excellent physical properties, which can be usefully used as a coating paint in various fields such as civil engineering and ships, including interior and exterior painting of various buildings.

At present, paints used in various fields such as civil engineering and ships, including interior and exterior paintings of various buildings, are composed of synthetic resins, organic solvents, and pigments. However, these paints have a problem in that other harmful substances, including volatile organic compounds (VOC), are generated indispensable to the human body as well as harmful to the environment.

In order to solve the above problems, inorganic paints using inorganic materials and paints using organic and inorganic composites have been developed and marketed. However, in the case of the inorganic paint and the organic and inorganic composite paint, there is a problem in that the durability is lowered as well as the workability is lowered compared to the general organic paint and the adhesion to the substrate.

Accordingly, the present inventors are environmentally friendly and not only have a beneficial effect on the human body, but also have excellent adhesion to the substrate, thereby greatly improving durability, and after studying a paint that can improve physical properties such as water resistance and flame retardancy, the present invention. Was completed.

Therefore, the present invention is environmentally friendly, excellent deodorization and antibacterial properties using a ceramic material excellent in emitting far-infrared rays, in particular, excellent adhesion to the substrate and excellent physical properties such as water resistance, durability and flame retardancy, various buildings The purpose of the present invention is to provide a ceramic paint composition that can be usefully used as a coating paint in various fields such as civil engineering and ships, including for painting.

The present invention also provides a ceramic paint obtained by mixing water with the ceramic paint composition.

The present invention to achieve the above object

In the composition for the ceramic paint containing an inorganic binder, an organic binder, a far infrared ray emitting material, a filler and an additive,

15 to 25 parts by weight of the back cement as an inorganic binder and 1 to 5 parts by weight of alumina cement, 10 to 12 parts by weight of reemulsifying powder resin as an organic binder, 10 to 20 parts by weight of illite as far infrared ray emitting material, and 3 to 8 weight of elvan. 15 to 20 parts by weight of silica sand powder, 4 to 8 parts by weight of calcium carbonate, 2 to 6 parts by weight of gypsum, 5 to 15 parts by weight of talc, and 2 to 5 parts by weight of pigment as an additive, 1.0 to 2.0 parts by weight of a reducing agent. It provides a composition for ceramic coating, characterized in that consisting of 0.5 to 1.0 parts by weight of antifoaming agent, 0.1 to 0.3 parts by weight of retardant, 0.05 to 0.2 parts by weight of thickener, and 1.5 to 2.5 parts by weight of silicate.

The present invention also provides a ceramic paint obtained by adding 50 to 90 parts by weight of water to 100 parts by weight of the ceramic coating composition.

Hereinafter, the ceramic coating composition according to the present invention will be described in more detail.

The ceramic coating composition according to the present invention includes an inorganic binder, an organic binder, a far infrared emitter, a filler, and an additive.

Here, the inorganic binder used as a role of imparting a predetermined hardness by curing through a hydration reaction when coating the coating on the substrate, it was used consisting of 15 to 25 parts by weight of the back cement and 1 to 5 parts by weight of alumina cement.

The back cement was added to obtain higher strength than general portland cement, and when the content is less than 15 parts by weight, there is a problem that the strength of the coating film is lowered. This falling problem occurs. In addition, alumina cement is added to reinforce the corrosion resistance and fire resistance, and if the content is less than 1 part by weight, there is a problem of poor corrosion resistance and fire resistance, and if the content is more than 5 parts by weight, the hardening time is shortened and the work is difficult. This will occur. Therefore, it is preferable to use an inorganic binder with back cement and alumina cement within the above range.

An organic binder is used together with the inorganic binder. The organic binder forms a film between cement particles when cement and water are mixed to prevent cracks generated during dry shrinkage of the cement, and also when the coating film is dried. , Remarkably improves flexibility, plasticity, wear resistance and workability. The organic binder may be used by blending a reemulsifying resin powder, and as the reemulsifying resin, ethylene vinyl acetate (EVA), polyvinyl butyral (PVB), or the like may be used, and in particular, an ethylene vinyl acetate powder resin is used. It is good. At this time, the re-emulsifying powder resin is preferably used having a particle size of 1 to 90㎛ for rapid re-emulsification.

The organic binder may be contained in an amount of 10 to 12 parts by weight. If the content is less than 10 parts by weight, sufficient physical properties may not be obtained, including crack prevention, and the inorganic binder may be relatively more than 12 parts by weight. Since the content of the decrease in strength is reduced, it is desirable to be contained within the above range.

Far infrared ray emitting material is contained together with the above-described binder. In the present invention, 10 to 20 parts by weight of illite and 3 to 8 parts by weight of elvan are used as the far infrared ray emitting material.

As such, when the illite and elvan are used as the far-infrared radiation material, the antimicrobial deodorizing effect can be obtained with the effect of the far-infrared radiation. At this time, the illite is added in order to adsorb and remove heavy metals or harmful substances harmful to the human body, if the content is less than 10 parts by weight, there is a problem that the durability and water resistance of the coating film is lowered, the content is 20 parts by weight If it exceeds, the adhesive force is lowered, the workability is poor. In addition, elvan has been added for the purpose of reinforcing the far-infrared radiation effect and deodorizing effect, when the content is less than 3 parts by weight, there is a problem that the far-infrared radiation effect and the deodorizing effect are not sufficiently exhibited, and when the content exceeds 8 parts by weight. The problem that the strength of the coating film is lowered due to poor adhesion. Therefore, it is preferable to include the illite and elvan in the above range as the far-infrared radiation material.

The ceramic coating composition according to the present invention includes a filler that is usually added, these fillers serve to increase the density by forming a coating film to increase the strength. In the present invention, 15 to 20 parts by weight of silica sand powder, 4 to 8 parts by weight of calcium carbonate, 2 to 6 parts by weight of gypsum, and 5 to 15 parts by weight of talc were included.

An additive is further included together with the filler, and as an additive, 2 to 5 parts by weight of a pigment, 1.0 to 2.0 parts by weight of a reducing agent, 0.5 to 1.0 part by weight of a defoaming agent, 0.1 to 0.3 part by weight of a retardant, 0.05 to 0.2 part by weight of a thickener, and silicate 1.5 To 2.5 parts by weight.

Here, the pigment may be used to impart various colors to the coating film, and a known inorganic pigment may be used within a known addition range, and in the present invention, 2 to 5 parts by weight of the pigment is included. In addition, a known water reducing agent and an antifoaming agent, a delaying agent and a thickener may be further added within a known addition range, and in the present invention, 1.0 to 2.0 parts by weight of a water reducing agent, 0.5 to 1.0 parts by weight of an antifoaming agent, 0.1 to 0.3 parts by weight of a retardant, and a thickener. 0.05 to 0.2 parts by weight to be included.

According to the present invention, the additive further includes a silicate, which greatly increases the waterproof function of the paint and greatly enhances adhesion to the substrate. Potassium silicate is used as the silicate, but other metal silicates cause whitening and deterioration in adhesion, so potassium silicate should be used as the silicate.

At this time, the silicate does not have to exceed 2.5 parts by weight, and if the content is less than 1.5 parts by weight, the effect of enhancing adhesion with the substrate is not greatly improved and the waterproofing function is deteriorated. It is preferable to make it contain.

50 to 90 parts by weight of water may be added to 100 parts by weight of the coating composition according to the present invention having the composition as described above to obtain a ceramic coating. At this time, the amount of water can be appropriately added or subtracted as needed, and the ceramic paint thus obtained can be used in various fields such as civil engineering and ships as well as for interior and exterior painting of buildings. The method of coating the ceramic paint on the substrate can be easily formed by applying known roll coating, brush coating, knife coating, spray coating, or the like.

When the ceramic paint is coated on the base material, the adhesion with the base material is very excellent and the durability is very good, and the far infrared ray emitting effect is excellent, which can be beneficial to the human body. It is excellent in deodorization and antibacterial properties, and excellent physical properties such as water resistance, durability and flame retardancy.

Hereinafter, the present invention will be described in more detail with reference to the following examples, which are only presented to aid the understanding of the present invention, but the present invention is not limited thereto.

<Example 1>

Back cement 20Kg, alumina cement 3Kg, re-emulsified powder resin EVA 11Kg, illite 15Kg, ganban stone 5Kg, silica sand 18Kg, calcium carbonate 6Kg, gypsum 4Kg, talc 10Kg, titanium oxide 3.5Kg, desensitizer 1.5Kg, antifoam 0.7 Kg, retardant 0.2Kg, thickener 0.1Kg, and potassium silicate 2.0Kg were mixed, and then 60Kg of water was added thereto, followed by sufficient mixing to prepare a ceramic paint. The ceramic coating thus prepared is roll coated on a cement concrete cured body and cured to form a coating film. Then, the adhesion and water resistance, durability, antimicrobial activity, deodorization, far infrared radiation and whitening of the coating film are measured and the results are shown in Table 1 below. Came out. What is shown in following Table 1 means (double): very good, (circle): good, (triangle | delta): normal, and x: bad.

At this time, the adhesion, durability and water resistance of the coating film were measured according to KS F 4715, and the whitening phenomenon was visually observed 24 hours after the coating film formation. Far-infrared emissivity and radiation energy were measured and measured in the range of 5 ~ 20㎛ using FT-IR (M 2400-C, USA). The antibacterial and deodorant effects were KICM-FIR-1002 and KICM-FIR, respectively. Measurements were made in accordance with the method specified in -1085.

<Example 2>

18Kg of back cement, 5Kg of alumina cement, EVA 11Kg of re-emulsified powder resin, 12Kg of illite, 8Kg of diatomite, 18Kg of silica sand powder, 6Kg of calcium carbonate, 4Kg of gypsum, 10Kg of talc, 4.0Kg of titanium oxide as a pigment, 1.5Kg of defoaming agent, 0.7 of defoaming agent Kg, retarder 0.2Kg, thickener 0.1Kg, and potassium silicate 1.5Kg were mixed, and then 60Kg of water was added thereto and mixed well to prepare a ceramic paint. The adhesion, water resistance, durability, antibacterial, deodorant, far-infrared radiation and whitening of the paint thus prepared were measured in the same manner as in Example 1, and the results are shown in Table 1 below.

<Example 3>

White cement 22Kg, alumina cement 1Kg, re-emulsified powder resin EVA 11Kg, illite 17Kg, ganban stone 3Kg, silica sand 18Kg, calcium carbonate 6Kg, gypsum 4Kg, talc 10Kg, titanium oxide 3.0Kg, desensitizer 1.5Kg, antifoam 0.7 Kg, retardant 0.2Kg, thickener 0.1Kg and potassium silicate 2.5Kg were mixed, and then 60Kg of water was added thereto, followed by sufficient mixing to prepare a ceramic paint. The adhesion, water resistance, durability, antibacterial, deodorant, far-infrared radiation and whitening of the paint thus prepared were measured in the same manner as in Example 1, and the results are shown in Table 1 below.

Comparative Example 1

12Kg of white cement, 11Kg of alumina cement, EVA 11Kg of re-emulsified powder resin, 23Kg of illite, 1Kg of sandstone, 16Kg of silica sand, 5Kg of calcium carbonate, 4Kg of gypsum, 10Kg of talc, 3.5Kg of titanium oxide as a pigment, 1.5Kg of antifoaming agent, 0.7 of defoaming agent Kg, retardant 0.2Kg, thickener 0.1Kg and potassium silicate 1.0Kg were mixed, and then 60Kg of water was added thereto, followed by sufficient mixing to prepare a ceramic paint. The adhesion, water resistance, durability, antibacterial, deodorant, far-infrared radiation and whitening of the paint thus prepared were measured in the same manner as in Example 1, and the results are shown in Table 1 below.

Comparative Example 2

Back cement 28Kg, alumina cement 0.5Kg, re-emulsified powder resin EVA 10Kg, illite 10Kg, ganban stone 10Kg, silica powder 16Kg, calcium carbonate 5Kg, gypsum 4Kg, talc 9Kg, titanium oxide 2.0Kg, water reducing agent 1.5Kg, antifoaming agent 0.7 Kg, 0.2 Kg of retarder, 0.1 Kg of thickener, and 3.0 Kg of potassium silicate were mixed, and 60 Kg of water was added thereto, followed by sufficient mixing to prepare a ceramic paint. The adhesion, water resistance, durability, antibacterial, deodorant, far-infrared radiation and whitening of the paint thus prepared were measured in the same manner as in Example 1, and the results are shown in Table 1 below.

Comparative Example 3

Back cement 20Kg, alumina cement 3Kg, re-emulsified powder resin EVA 11Kg, illite 15Kg, ganban stone 5Kg, silica sand 18Kg, calcium carbonate 6Kg, gypsum 4Kg, talc 10Kg, titanium oxide 3.5Kg, desensitizer 1.5Kg, antifoam 0.7 Kg, retarder 0.2Kg, thickener 0.1Kg, and sodium silicate 2.0Kg were mixed, and then 60Kg of water was added thereto, followed by sufficient mixing to prepare a ceramic paint. The adhesion, water resistance, durability, antibacterial, deodorant, far-infrared radiation and whitening of the paint thus prepared were measured in the same manner as in Example 1, and the results are shown in Table 1 below.

division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Adhesion 0.8N / ㎡ 0.7N / ㎡ 0.9N / ㎡ 0.4N / ㎡ 0.8N / ㎡ 0.5N / ㎡ Water resistance ◎ ○ ◎ △ ○ △ durability ○ ◎ ○ △ △ △ Antimicrobial activity ◎ ◎ ○ × ○ ○ Deodorant ○ ○ ◎ ○ △ ○ Far infrared radiation rate 0.91 0.93 0.89 0.90 0.90 0.90 Far Infrared Radiation 3.66 × 10 ² 3.71 × 10 ² 3.64 × 10 ² 3.60 × 10 ² 3.60 × 10 ² 3.60 × 10 ² Whitening phenomenon ◎ ○ ○ ○ ○ ×

As shown in Table 1, in the case of the paint obtained by using the paint composition prepared in the preferred range of the present invention as in Examples 1 to 3, it was prepared outside the scope of the present invention as in Comparative Examples 1 and 2. It can be confirmed that the physical properties including adhesion are very superior to the paints obtained using the paint composition. In addition, in the case of Comparative Example 3, in which the potassium silicate was not used as the silicate salt, bleaching occurred, adhesion strength was lowered, and physical properties including the water repellent effect were lowered.

As described above, the present invention uses environmentally friendly ceramic materials that emit far-infrared rays, and is environmentally friendly, excellent in deodorization and antibacterial properties, and in particular, has excellent adhesion to the substrate and excellent physical properties such as water resistance, durability and flame resistance. In order to provide a composition for ceramic coating that can be usefully used as a coating paint in various fields, such as civil engineering and ships, including for painting the inside and outside of various buildings, there is a useful effect of providing the manufacturing method.

Claims (4)

In the composition for a ceramic paint containing an inorganic binder, an organic binder, a far infrared emitter, a filler, and an additive, 15 to 25 parts by weight of the back cement as an inorganic binder and 1 to 5 parts by weight of alumina cement, 10 to 12 parts by weight of reemulsified powder resin as an organic binder, 10 to 20 parts by weight of illite as a far infrared emitter and 3 to 8 parts by weight of elvan 15 to 20 parts by weight of silica sand powder, 4 to 8 parts by weight of calcium carbonate, 2 to 6 parts by weight of gypsum, 5 to 15 parts by weight of talc, and 2 to 5 parts by weight of pigment as an additive, 1.0 to 2.0 parts by weight of a reducing agent. , Antifoaming agent 0.5 to 1.0 parts by weight, retardant 0.1 to 0.3 parts by weight, thickener 0.05 to 0.2 parts by weight, silicate composition for the ceramic coating, characterized in that consisting of 1.5 to 2.5 parts by weight. The composition for ceramic coating according to claim 1, wherein the reemulsifying powder resin is ethylene vinyl acetate having a particle size of 1 to 90 µm. The ceramic coating composition according to claim 1 or 2, wherein the silicate is potassium silicate. The ceramic paint obtained by adding 50-90 weight part of water to 100 weight part of compositions for ceramic paints of Claim 3.