KR101989928B1 - coating material compositon for construction and coating material comprising the same - Google Patents

Abstract

The present invention relates to a coating material composition for construction finishing materials and a coating material for construction finishing materials comprising the same. More specifically, the present invention relates to: the coating material composition for construction finishing materials having excellent adhesion strength, tensile strength, and as well as thermal performance; and the coating material for construction finishing materials comprising the same.

Description

Coating material composition for building finish and coating material comprising same {coating material compositon for construction and coating material comprising the same}

The present invention relates to a coating material composition for building finishing materials and a coating material for building finishing materials comprising the same, as well as excellent adhesion strength, tensile strength, and a thermal finishing material composition for building finishing materials and a building finishing material comprising the same It's about ashes.

Generally, thin coating material mainly made of acrylic emulsion is manufactured by mixing general silica sand or color coated silica sand and pigment.

Since the thin coating material is mostly installed on the upper side of the heat insulating material or the outermost surface of the building, there is a problem that the surface is cracked due to the change in the outside air temperature or the contraction and expansion of the building. On the other hand, as a finishing material to be installed on the most surface portion, the thin coating material is a site through which external radiant heat is transmitted, and as a result, solar radiation accumulates on the surface, and thus becomes a major factor in changing the room temperature of a building.

  Therefore, there is a demand for the development of an exterior finish that has enhanced the tensile strength of the thin coating material and is endowed with performance such as heat shielding properties.

Republic of Korea Registration No. 10-1293764 (July 30, 2013)

The present invention is to provide a coating material composition for building finishing materials and a building finishing material comprising the same as well as excellent adhesion strength, tensile strength and excellent heat shielding even when plastered with a thin thickness of 1 ~ 5mm on the exterior of the building. .

In order to solve the above problems, the coating material composition for building finishing materials of the present invention comprises an acrylic emulsion resin, a silane-modified acrylic emulsion resin, cellulose fibers, aggregate, titanium dioxide (TiO ₂ ) and aluminosilicate (aluminosilicate).

In a preferred embodiment of the present invention, the base material for heat insulating material composition of the present invention is based on 100 parts by weight of the acrylic emulsion resin, 15 to 25 parts by weight of silane-modified acrylic emulsion resin, 1.5 to 2.5 parts by weight of cellulose fibers, aggregate 302 to 505 parts by weight, 25 to 42 parts by weight of titanium dioxide and 25 to 42 parts by weight of aluminosilicate.

In a preferred embodiment of the present invention, the base material for heat insulating material composition of the present invention is based on 100 parts by weight of the acrylic emulsion resin, 17 to 23 parts by weight of the silane-modified acrylic emulsion resin, 1.7 to 2.3 parts by weight of cellulose fibers, aggregate 342 to 464 parts by weight, titanium dioxide 28 to 39 parts by weight and aluminosilicate may comprise 28 to 39 parts by weight.

In one preferred embodiment of the present invention, the aggregate may comprise silica sand 0.15 ~ 0.6mm.

In a preferred embodiment of the present invention, the silane-modified acrylic emulsion resin contains a solid content of 27 to 33% by weight, pH 6 ~ 11, the viscosity is 200 cps (25 ℃) or less, the glass transition temperature (Tg) It may be -20 ~ 20 ℃.

In a preferred embodiment of the present invention, the cellulose fibers may have a length of 1,500 to 2,500 μm, a thickness of 30 to 40 μm, and a bulk density of 5 to 30 g / l.

In one preferred embodiment of the invention, the aluminosilicate may be circular hollow bodies (hollw shperes).

In a preferred embodiment of the present invention, the aluminosilicate may have a particle size of 20 ~ 110㎛, specific gravity of 0.5 ~ 1.0 cm ³ , melting point of 1500 ~ 2100 ℃.

On the other hand, the building material for building finishing material of the present invention includes the above-mentioned building material for building finishing material.

In a preferred embodiment of the present invention, the building material for the finishing material of the present invention may be an exterior coating material of the building.

In a preferred embodiment of the present invention, when the coating material for building finishing material of the present invention (age 28 days) has a thickness of 3mm, the adhesion strength measured by the KS F 4715 regulation 1.0 ~ 2.0 N / mm ² Can be.

In a preferred embodiment of the present invention, when the coating material for building finishing materials (age 28 days) of the present invention has a thickness of 3mm, the tensile strength measured by the KS M ISO 1798 standard 0.5 ~ 1.5 N / mm Can be ²

In a preferred embodiment of the present invention, the coating material for building finishing material of the present invention may have a melting rate of 50% or less measured by Experimental Method 1 below.

Experimental Method 1

1 liter of ice is placed in the styrofoam structure (Box), and the coating material composition for building finish is applied to the outer surface of the styrofoam structure (Box), and then completely cured to form a coating material for building finish with a thickness of 3 mm. Measure the ice melt rate after 16,000 seconds after exposure to outside air.

The coating material composition for building finishing material of the present invention and the building material for building finish including the same have excellent adhesive strength, tensile strength and excellent thermal performance.

In addition, the coating material composition for building finishing material of the present invention and the building material for building finish comprising the same, in particular, even if the construction of a thin thickness of 1 ~ 5mm on the exterior of the building excellent adhesion strength, tensile strength, temperature reduction effect Is excellent, and the melting rate is low.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

The coating material composition for building finishing materials of the present invention includes an acrylic emulsion resin, a silane-modified acrylic emulsion resin, cellulose fibers, aggregates, titanium dioxide and aluminosilicate.

First, the acrylic emulsion resin of the present invention is included in the coating material composition for building finishing materials of the present invention serves as a blending polymer for improving various physical performance.

The acrylic emulsion resin of the present invention is a synthetic organic polymer material, and may be referred to as a thermoplastic resin because fluidity is generated by heat. The acrylic emulsions typically used in building finish compositions for building finishes can be used without limitation, preferably hydrophobic acrylic monomers, acrylamide compounds, vinyl pyrrolidone compounds and aminoethyls, including alkyl acrylates or alkyl methacrylates. It can be prepared by reacting at least one monomer selected from the group consisting of an acrylate compound, an ethylene oxide addition acrylic monomer, an unsaturated carboxylic acid monomer and a hydrophilic monomer including a hydroxy group or an acrylic monomer containing a glycidyl group and a polymerization initiator. At this time, the molecular weight may be 1 million to 1 million.

In addition, preferably, the acrylic emulsion resin of the present invention may include at least one of a pure acrylic emulsion resin, an EVA-acrylic hybrid emulsion resin and a styrene-acrylic emulsion resin.

Next, the silane-modified acrylic emulsion resin of the present invention is included in the coating material composition for building finishing materials of the present invention as an acrylic emulsion resin whose surface is modified with silane serves to increase the tensile strength.

Specifically, the silane-modified acrylic emulsion resin of the present invention is an organic-inorganic hybrid silane-modified acrylic emulsion resin, and may have anionicity. In addition, the material of the acrylic emulsion resin of the silane-modified acrylic emulsion resin may be the same or different from the material of the acrylic emulsion resin mentioned above.

In addition, the silane-modified acrylic emulsion resin of the present invention may contain a solid content of 27 to 33% by weight, preferably 28 to 32% by weight, more preferably 29 to 31% by weight.

In addition, the silane-modified acrylic emulsion resin of the present invention may have a pH of 6 to 11, preferably 7 to 10, more preferably 8 to 9.

In addition, the silane-modified acrylic emulsion resin of the present invention may have a viscosity of 200 cps (25) or less, preferably 100 cps (25) or less, more preferably 10 to 100 cps (25).

In addition, the silane-modified acrylic emulsion resin of the present invention may have a glass transition temperature (Tg) of -20 to 20, preferably -10 to 10, more preferably -5 to 5.

In addition, the silane-modified acrylic emulsion resin of the present invention may comprise 15 to 25 parts by weight, preferably 17 to 23 parts by weight, more preferably 19 to 21 parts by weight with respect to 100 parts by weight of the acrylic emulsion resin, If the modified acrylic emulsion is included in less than 15 parts by weight, there may be a problem that the tensile strength improvement effect is lowered, and if it contains more than 25 parts by weight there may be a problem that the price rises.

Next, the aggregate of the present invention may be chemically stable as a construction mineral material that can be agglomerated by a binder such as concrete, mortar, kneading dough, bituminous mixture and the like. In addition, the aggregate of the present invention includes rocks, sand, gravel, slag for crushed stone, which is present in rivers, forests, public waters, other ground, underground, etc., and coarse aggregates (粗 骨材) having an average particle diameter of 5 mm or more, Can be divided into fine aggregate (洗 骨材) of 5mm or less, the aggregate of the present invention may include a silica sand having an average particle diameter of 0.15mm ~ 0.6mm, preferably 0.25mm ~ 0.6mm. If the average particle diameter of the aggregate is less than 0.15mm, there may be a problem of workability due to fluidity deterioration, and if the average particle diameter exceeds 0.6mm, there may be a problem when plastering the interior and exterior of the building.

In addition, the aggregate of the present invention may comprise 302 ~ 505 parts by weight, preferably 342 ~ 464 parts by weight, more preferably 383 ~ 424 parts by weight, based on 100 parts by weight of the acrylic emulsion resin, if the aggregate is 302 parts by weight If less than or exceeds 505 parts by weight, the plastering performance is reduced in the interior and exterior of the building to increase the thickness, there may be a problem that the adhesion strength is lowered and the water absorption coefficient is increased due to deterioration.

Next, the cellulose fiber of the present invention is a fiber containing cellulose, and is included in the coating material composition for building finishing materials of the present invention to improve tensile strength and flexural toughness and improve brittleness. .

Specifically, the cellulose fiber of the present invention may be a natural cellulose fiber extracted from wood, the length of 1,500 ~ 2,500㎛, preferably the length of 1,700 ~ 2,300㎛, more preferably the length of 1,900 ~ 2,100㎛ It can have

In addition, the cellulose fibers of the present invention may have a thickness of 30 to 40 μm, preferably 32 to 38 μm, more preferably 33 to 42 μm.

In addition, the cellulose fibers of the present invention may have a bulk density of 5 to 30 g / l, preferably a bulk density of 8 to 27 g / l, more preferably a volume density of 10 to 25 g / l. Can be.

In addition, the cellulose fibers of the present invention may have a cellulose content of 90% by weight or more, preferably 65% by weight, more preferably 99-99.8% by weight.

In addition, the cellulose fibers of the present invention may have a pH of 4.5 to 8.5, preferably 5.5 to 6.5.

In addition, the cellulose fibers of the present invention may comprise 1.5 to 2.5 parts by weight, preferably 1.7 to 2.3 parts by weight, more preferably 1.9 to 2.1 parts by weight, based on 100 parts by weight of the acrylic emulsion resin, If the fiber is less than 1.5 parts by weight, there may be a problem of low adhesion strength and enhancement of tensile strength, and if it exceeds 2.55 parts by weight, the effect of improving adhesion strength and tensile strength may be lowered, and there may be a problem of price increase. .

Next, titanium dioxide (TiO ₂ ) of the present invention is included in the coating material composition for building finishing materials of the present invention serves to improve the thermal performance.

Specifically, the titanium dioxide of the present invention may include 25 to 42 parts by weight, preferably 28 to 39 parts by weight, more preferably 31 to 35 parts by weight, based on 100 parts by weight of the acrylic emulsion resin. If it contains less than 25 parts by weight, there may be a problem that the effect of reducing the surface temperature is lowered, if it exceeds 42 parts by weight may have a problem of lowering the adhesion strength and tensile strength.

Finally, the aluminosilicate of the present invention is included in the coating material composition for the building finishing material of the present invention serves to improve the thermal performance.

Specifically, the aluminosilicate of the present invention may be ceramic microscopic hollow spheres (Ceramic Microscopic Hollow Spheres) containing aluminosilicate (aluminosilicate) as a main component, it may have a remarkably excellent thermal performance by the hollow structure .

In addition, the aluminosilicate of the present invention may have a particle size of 20 ~ 110㎛, preferably a particle size of 30 ~ 100㎛.

In addition, the aluminosilicate of the present invention may have a specific gravity of 0.5 to 1.0 cm ^3, preferably a specific gravity of 0.7 ~ 0.88cm ^3.

In addition, the aluminosilicate of the present invention may have a melting point of 1500 ~ 2100 ℃, more preferably 1600 ~ 2000 ℃ melting point.

In addition, the aluminosilicate of the present invention may have a compressive strength of 2500 to 3500 N / cm 2, preferably 2800 to 3200 N / cm 2.

In addition, the aluminosilicate of the present invention may comprise 25 to 42 parts by weight, preferably 28 to 39 parts by weight, more preferably 31 to 35 parts by weight based on 100 parts by weight of the acrylic emulsion resin, and if the aluminosilicate If it contains less than 25 parts by weight, there may be a problem that the thermal performance is lowered, and if it exceeds 42 parts by weight, there may be a problem of economical efficiency and adhesion strength degradation.

On the other hand, the coating material composition for building finishing materials of the present invention may further comprise water, water is 35 to 59 parts by weight, preferably 39 to 54 parts by weight, more preferably 44 to 100 parts by weight of the acrylic emulsion resin It may include ~ 49 parts by weight, if the water is included less than 35 parts by weight, there may be a problem of workability degradation, if it exceeds 59 parts by weight when constructing a coating material composition for building finishing materials of the present invention, There may be a problem of running down.

Furthermore, the coating material for building finishing materials of the present invention includes the coating material composition for building finishing materials described above.

Specifically, the building material for the building finishing material of the present invention may be a curing material composition for the building material described above, the building material for the building material of the present invention can be used as interior or exterior coating material of the building, preferably building It can be used as exterior coating material of to have excellent heat shielding property as well as adhesion strength and tensile strength.

On the other hand, the coating material for building finishing material of the present invention may have a thickness of 1 to 5mm, preferably 2 to 4mm, more preferably 2.5 to 3.5mm after curing, even when having a thin thickness It can have excellent heat shielding properties as well as adhesion strength and tensile strength.

Specifically, when the finishing material for building finishing material of the present invention (age 28 days) has a thickness of 3mm, the adhesive strength measured by the KS F 4715 regulation 1.0 ~ 2.0 N / mm ² , preferably 1.3 ~ 2.0 N / mm ² , more preferably 1.4-1.8 N / mm ² .

In addition, when the finishing material for building finishing materials of the present invention (age 28 days) has a thickness of 3mm, the tensile strength measured according to the KS M ISO 1798 regulation 0.5 ~ 1.5 N / mm ² , preferably 0.6 ~ 1.3 N / mm ² , more preferably 0.7 to 1.0 N / mm ² .

In addition, the coating material for the building finishing material of the present invention may have a melting rate of 50% or less, preferably 20 to 49%, more preferably 40 to 48.5%, measured by Experimental Method 1 below.

Experimental Method 1

1 liter of ice is placed in the styrofoam structure (Box), and the coating material composition for building finish is applied to the outer surface of the styrofoam structure (Box), and then completely cured to form a coating material for building finish with a thickness of 3 mm. Measure the ice melt rate after 16,000 seconds after exposure to outside air.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the following Examples are not intended to limit the scope of the present invention, which will be construed as to help the understanding of the present invention.

EXAMPLE

Example 1 Preparation of a Coating Material Composition for Building Finishing Materials

(1) 20 parts by weight of a silane-modified acrylic emulsion resin (Apec, AP6243), aggregate silica sand (average particle diameter: 0.4mm) 403.33 parts by weight, cellulose fiber (100 parts by weight of acrylic emulsion resin (Chilsung polymer CS-200) 2 parts by weight of a Nikon material, FIF400), 33.33 parts by weight of titanium dioxide (Lee Young Cerachem), 33.33 parts by weight of an aluminosilicate circular hollow body (Insulin Asia, Insulin), and then mixed at 62 rpm for 1 minute, A mixture was prepared.

(2) After adding 46.66 parts by weight of water to 100 parts by weight of the acrylic emulsion resin, the mixture was mixed at low speed of 62 rpm for 30 seconds and then stopped for 30 seconds. Finally, a high-speed mixing at 125rpm again for 1 minute to prepare a coating material composition for building finishing materials.

Example 2-Example 21

In the same manner as in Example 1 A coating material composition for building finishing materials was prepared. However, by varying the content of the components as described in Table 1 and Table 2 to prepare a coating material composition for building finishing materials of Examples 2 to 21.

Comparative Example 1

In the same manner as in Example 1 A coating material composition for building finishing materials was prepared. However, the coating material composition for building finishing materials was produced, without using a silane modified acrylic emulsion resin as described in Table 2.

Comparative Example 2

In the same manner as in Example 1 A coating material composition for building finishing materials was prepared. However, the coating material composition for building finishing materials was manufactured, without using a cellulose fiber as shown in Table 2.

Comparative Example 3

In the same manner as in Example 1 A coating material composition for building finishing materials was prepared. However, the coating material composition for building finishing materials was manufactured, without using titanium dioxide as shown in Table 2.

Comparative Example 4

In the same manner as in Example 1 A coating material composition for building finishing materials was prepared. However, as shown in Table 2, without using an aluminosilicate circular hollow body, a coating material composition for building finishing materials was prepared.

Example 22

In the same manner as in Example 1 A coating material composition for building finishing materials was prepared. However, unlike Example 1, aluminosilicate was used instead of the aluminosilicate circular hollow body to prepare a coating material composition for building finishing materials.

Experimental Example 1 Measurement of Bond Strength (N / mm ² )

7 cm x 7 cm x 3 cm high concrete plate surface was applied to the coating material composition for building finishes prepared in Examples 1 to 22 and Comparative Examples 1 to 4, respectively, and completely cured for 14 days at a temperature of 20 ℃ thickness 3mm was used to form the finishing material for the building finish.

Bond strength was measured according to KS F 4715 for the formed finishes for the building finishes and is shown in Table 3 and Table 4 below.

Experimental Example 2 Tensile Strength Measurement (N / mm ² )

After applying the coating material composition for building finishing materials prepared in Examples 1 to 22 and Comparative Examples 1 to 4 on the tensile strength test body coated with the release agent on the surface, and completely cured for 14 days at a temperature of 20 ℃ to build a thickness of 3mm A finish material for the finish was formed. Tensile strength was measured according to the KS M ISO 1798 soft foamed polymer material-tensile strength and elongation at break rate measurement method regulation for the formed building finishing agent is shown in Table 3 and Table 4.

Experimental Example 3: Thermal Performance Evaluation

A styrofoam structure (Box) having a width of 30 cm x 30 cm (height) x 30 cm (height) was prepared. 1 liter of ice was put as a refrigerant in the prepared styrofoam structure (Box), and the coating material composition for building finishing materials prepared in Examples 1 to 22 and Comparative Examples 1 to 4 was applied to the outer surface of the styrofoam structure (Box), respectively. After curing completely for 24 hours at a temperature of 20 ± 2 ℃ to form a coating material for building finishing material with a thickness of 3mm.

After that, the highest temperature, the lowest temperature, the highest temperature and the lowest temperature outside the Styrofoam structure (Box) were measured for 16,000 seconds after exposure to the outside air, and the ice after 16,000 seconds after exposure to the outside air was measured. Melting rate of the was measured and shown in Table 3 and Table 4.

As described in Tables 3 and 4, the coating material composition for building finishes prepared in Examples 1 to 3 was found to have excellent adhesion strength and tensile strength, as well as excellent heat shielding properties and low melting rate. .

In addition, the coating material composition for building finishing materials prepared in Example 4 Compared with the coating material composition for building finishes prepared in Examples 1 to 3, the heat shielding and melting rate is similar, but it was confirmed that the adhesion strength and tensile strength is reduced.

In addition, the coating material composition for building finishing materials prepared in Example 5 Compared with the coating material composition for building finishes prepared in Examples 1 to 3, it can be confirmed that the adhesion strength, tensile strength, heat shielding and melting rate are similar, silane-modified acrylic emulsion resin prepared in Examples 1 to 3 It could be confirmed that there is no improvement in physical properties even if it contains more than the coating material composition for the finished building material.

In addition, the coating material composition for building finishing materials prepared in Example 6 Compared with the coating material composition for building finish material prepared in Example 1, it was confirmed that the adhesion strength and tensile strength is reduced, the building material for building finish material prepared in Example 8 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that not only the adhesion strength and tensile strength significantly decreased, but also the melting rate increased.

In addition, the coating material composition for building finishing materials prepared in Example 7 Compared with the coating material composition for building finishing materials prepared in Example 1, it was confirmed that the adhesion strength and tensile strength is lowered, the melting rate is increased, the building material for building finishing materials prepared in Example 9 Compared with the coating material composition for building finishing materials prepared in Example 1, not only the adhesion strength and tensile strength was significantly lowered, but also the melting rate was significantly increased.

In addition, the coating material composition for building finishing materials prepared in Example 10 Compared with the coating material composition for building finishing materials prepared in Example 1, it was confirmed that the adhesion strength and tensile strength is reduced, the building material for building finishing materials prepared in Example 12 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the adhesive strength and tensile strength is significantly reduced.

In addition, the coating material composition for building finishing materials prepared in Examples 11 and 13 Compared to the coating material composition for building finishing materials prepared in Example 1, it can be confirmed that the adhesion strength, tensile strength, heat shielding and melting rate is similar, the cellulose fiber is applied to the building material coating material for building finishing materials prepared in Example 1 Including more, it was confirmed that there is no improvement in physical properties.

In addition, the coating material composition for building finishing materials prepared in Example 14 Compared with the coating material composition for building finishing materials prepared in Example 1, it was confirmed that the heat shielding property is lowered, the melting rate is increased, the building material for building finishing materials prepared in Example 16 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the heat shielding properties are significantly lowered, the melting rate is significantly increased.

In addition, the coating material composition for building finishing materials prepared in Example 15 Compared with the coating material composition for building finishing materials prepared in Example 1, the adhesive strength and tensile strength is lowered, and the coating material composition for building finishing materials prepared in Example 17 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the adhesive strength and tensile strength is significantly reduced.

In addition, the coating material composition for building finishing materials prepared in Example 18 Compared with the coating material composition for building finishing materials prepared in Example 1, it was confirmed that the adhesion strength, tensile strength and heat shielding properties are lowered, the melting rate is increased, the building material for building finishing materials prepared in Example 20 silver Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the adhesion strength and tensile strength is lowered, the heat shielding properties are significantly lowered, and the melting rate is significantly increased.

In addition, the coating material composition for building finishing materials prepared in Example 19 Compared with the coating material composition for building finishing materials prepared in Example 1, the adhesive strength and tensile strength is lowered, and the coating material composition for building finishing materials prepared in Example 21 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the adhesive strength and tensile strength is significantly reduced.

In addition, the coating material composition for building finishing materials prepared in Example 22 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the thermal insulation is significantly lowered, the melting rate is significantly increased.

In addition, the coating material composition for building finishing materials prepared in Comparative Examples 1 and 2 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the adhesive strength and tensile strength is significantly reduced.

In addition, the coating material composition for building finishing materials prepared in Comparative Examples 3 and 4 Compared with the coating material composition for building finishes prepared in Example 1, it was confirmed that the adhesion strength and tensile strength is lowered, the heat shielding properties are significantly lowered, and the melting rate is significantly increased.

Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.

Claims (13)

With respect to 100 parts by weight of the acrylic emulsion resin, 17 to 23 parts by weight of silane-modified acrylic emulsion resin, 1.7 to 2.3 parts by weight of cellulose fiber, 342 to 464 parts by weight of aggregate, 28 to 39 parts by weight of titanium dioxide, and aluminosilicate circular hollow body 28 A coating material composition for building finishing materials comprising ~ 39 parts by weight.
delete delete The method of claim 1,
The aggregate is a finish material composition for building finishing materials, characterized in that it comprises a silica sand 0.15 ~ 0.6mm.
The method of claim 1,
The silane-modified acrylic emulsion resin contains a solid content of 27 to 33% by weight, pH 6 ~ 11, the viscosity is 200 cps (25 ℃) or less, the glass transition temperature (Tg) is characterized in that -20 ~ 20 ℃ Coating material composition for building finishing materials.
The method of claim 1,
The cellulose fiber has a length of 1,500 ~ 2,500㎛, 30 ~ 40㎛ thickness, 5 ~ 30g / l coating material composition for a building finish, characterized in that having a bulk density (bulk density).
delete The method of claim 1,
The aluminosilicate circular hollow body has a particle size of 20 ~ 110㎛, specific gravity of 0.5 ~ 1.0, the melting point of the construction finish material, characterized in that it has a melting point of 1500 ~ 2100 ℃.
Claim 1, 4, 5, 6 and 8 of claim 1, comprising a coating material composition for building finishing materials according to any one of claims.
The method of claim 9,
The building finish material for the building finish material, characterized in that the exterior finish material for the building.
The method of claim 9,
The building material for finishing materials (based on age 28) has a thickness of 3mm, the coating material, characterized in that the adhesion strength measured by the KS F 4715 regulation 1.0 ~ 2.0 N / mm ² , the building material.
The method of claim 9,
The building material for finishing materials (based on age 28) has a thickness of 3mm, the building material finishing material, characterized in that the tensile strength of 0.5 ~ 1.5 N / mm ² measured by KS M ISO 1798.
The method of claim 9,
The building finish material for the building finish material, characterized in that the melting rate measured by the test method 1 below 50% or less.
Experimental Method 1
1 liter of ice is placed in the styrofoam structure (Box), and the coating material composition for building finish is applied to the outer surface of the styrofoam structure (Box), and then completely cured to form a coating material for building finish with a thickness of 3 mm. Measure the ice melt rate after 16,000 seconds after exposure to outside air.