KR102415013B1 - Non-combustible insulation board for interior and exterior materials of buildings - Google Patents

Abstract

According to an embodiment of the present invention, a semi-noncombustible insulation board for interior and exterior materials of a building comprises: an insulation layer for interior and exterior walls of a building; a nonwoven fabric for heat reflection integrally provided on one side of the insulation layer for interior and exterior walls of a building; and a first coating adhesive coated on the nonwoven fabric for heat reflection. According to the present invention described above, the first coating adhesive fills a through hole with a size of 25 mm during the gas hazard test to prevent carbonization of the exposed urethane insulation.

Description

Non-combustible insulation board for interior and exterior materials of buildings

The present invention relates to a semi-non-combustible insulation board for interior and exterior materials of buildings.

In general, styrofoam, polyurethane foam, glass wool, rock wool, PE foam, phenol foam, etc. are mainly used for thermal insulation of buildings. Resistance type insulation that suppresses heat transfer by conduction and convection has been mainly used.

These foamed resins are widely used throughout the industry because of their excellent thermal insulation, buffering properties, and processability, and in particular, are mainly used as packaging materials to protect products, insulation materials for construction, and sound absorption materials.

However, since these foamed resins are very vulnerable to heat, there is a problem in that the resin is burned by heat during a fire, causing the spread of fire and causing damage to human life by generating toxic gas harmful to the human body.

Polystyrene (Styrofoam) foam, which is the most in demand as a conventional insulator, is easy to process and has the advantage of being light as it is composed of more than 98% of the volume of air. In case of fire, harmful gases such as CO, CH4, C2H4 are generated, and there is a weakness in chemical reaction, so it has the disadvantage of being easily invaded by the commonly used aromatic hydrocarbon-based organic solvents. Inorganic insulation materials such as glass wool and rock wool are strong in heat and have excellent workability at joints, but they have high hygroscopicity and are not excellent in mechanical properties in the molded state, so they are difficult to install on walls and have a lot of weight. Care should be taken to avoid inhalation or contact of dust.

In addition, a non-woven mesh coated with PE or PP on one side of polyurethane foam or phenolic foam and a material coated with thin-layer aluminum (Al) on the other side may meet the semi-noncombustible standard to some extent, but PE thin-layer aluminum is manufactured too thin Therefore, there is a risk of micro-scratches, so it is difficult to sufficiently exert the heat transfer prevention function when the surface is damaged. In addition, the surface material is dried or overlapped during production, which is not only inconvenient to use due to poor workability, but also has disadvantages in that it is difficult to complete construction due to poor compatibility, adhesion and adhesion with cement or concrete walls, and also has disadvantages in economic efficiency.

Korean Patent Publication No. 10-2015-0004676 (2015.01.13) Korean Patent Publication No. 10-2016-0124605 (2016.10.28) Korean Patent Publication No. 10-2018-0071908 (2018.06.28)

Accordingly, the present invention has been devised to eliminate the above-described problems, comprising: an insulating material layer for interior and exterior walls of a building; Non-woven fabric for heat reflection provided integrally on one surface of the insulation layer for interior and exterior walls of a building; and a first coating adhesive coated on the non-woven fabric for heat reflection, wherein the non-woven fabric for heat reflection is coated with a heat-reflecting non-combustible liquid on a non-woven fabric, and the heat-reflecting non-combustible liquid is 20-50 wt% of an inorganic binder, aluminum paste or 5 to 40% by weight of aluminum powder, 3 to 35% by weight of water, 1 to 8% by weight of airgel, 1 to 8% by weight of clay, and 0.1 to 1% by weight of black pigment, the heat reflective nonflammable liquid is coated The nonwoven fabric is laminated on at least one surface of the insulating material layer for the inner and outer walls of the building, and the inorganic binder is 10 to 30% by weight of liquid sodium silicate, 10 to 30% by weight of thermosetting resin, 5 to 20% by weight of silica, 5 to 15% by weight of sodium bicarbonate %, isocyanate 3-10 wt%, inorganic flame retardant 1-10 wt%, water resistance improving additive 1-5 wt%, boric acid 0.5-5 wt%, calcium oxide (CaO) 0.5-5 wt%, magnesium oxide 0.5-5 wt% %, 0.5 to 3% by weight of glyoxal, and 30 to 50% by weight of water.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A semi-non-combustible insulation board for interior and exterior materials of a building according to an embodiment for solving the above problems includes: an insulation layer for interior and exterior walls of a building; Non-woven fabric for heat reflection provided integrally on one surface of the insulation layer for interior and exterior walls of a building; and a first coating adhesive coated on the non-woven fabric for heat reflection, wherein the first coating adhesive is 20-30 wt% of an organic binder, 1-2% of ceramic wool, 1-10 wt% of an inorganic flame retardant, 20-40 wt% of expanded graphite %, Insulad 5-10%, vermiculite 1-3 wt%, ether polyol 1-3 wt%, ester polyol 0.5-1.5 wt%, catalyst 0.5-1.5 wt%, wherein the first coating adhesive is used for the heat reflection It is coated by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the nonwoven fabric and then dried.

Further comprising a second coating adhesive coated on the surface of the first coating adhesive, wherein the second coating adhesive is 50 to 60% by weight of inorganic binder, 3 to 5% by weight of perforated glass, 1 to 8% by weight of Soubi clay, quartz 3 to 5% by weight of powder, 1 to 5% by weight of water resistance improving additive, 5 to 10% by weight of insulin, 1 to 2% by weight of sodium carbonate, and 10 to 20% by weight of water, wherein the second coating adhesive is the first It can be dried after coating by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the coating adhesive.

It further comprises a paper attached to the surface of the second coating adhesive, and drying of the second coating adhesive may be made after attaching the paper on the surface of the second coating adhesive.

Details of other embodiments are included in the detailed description and drawings.

According to the present invention, it is possible to prevent carbonization of the exposed urethane insulating material by filling the hole through which the first coating adhesive has a size of 25 mm during the gas hazard test.

Effects according to the embodiments are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to an embodiment.
2 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
3 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
4 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
5 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
6 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
7 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
8 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.
9 to 16 are photographs showing the gas hazard test of the comparative example and the present example.

The semi-non-combustible insulation board for interior and exterior materials of a building according to the present invention comprises: an insulation layer for interior and exterior walls of a building; Non-woven fabric for heat reflection provided integrally on one surface of the insulation layer for interior and exterior walls of a building; and a first coating adhesive coated on the non-woven fabric for heat reflection, wherein the non-woven fabric for heat reflection is coated with a heat-reflecting non-combustible liquid on a non-woven fabric, and the heat-reflecting non-combustible liquid is 20-50 wt% of an inorganic binder, aluminum paste or 5 to 40% by weight of aluminum powder, 3 to 35% by weight of water, 1 to 8% by weight of airgel, 1 to 8% by weight of clay, and 0.1 to 1% by weight of black pigment, the heat reflective nonflammable liquid is coated The nonwoven fabric is laminated on at least one surface of the insulating material layer for the inner and outer walls of the building, and the inorganic binder is 10 to 30% by weight of liquid sodium silicate, 10 to 30% by weight of thermosetting resin, 5 to 20% by weight of silica, 5 to 15% by weight of sodium bicarbonate %, isocyanate 3-10 wt%, inorganic flame retardant 1-10 wt%, water resistance improving additive 1-5 wt%, boric acid 0.5-5 wt%, calcium oxide (CaO) 0.5-5 wt%, magnesium oxide 0.5-5 wt% %, 0.5 to 3% by weight of glyoxal and 30 to 50% by weight of water.

Semi-non-combustible insulation board for interior and exterior materials of buildings according to the present invention further comprises a second coating adhesive coated on the surface of the first coating adhesive, wherein the second coating adhesive is 50-60 wt% of inorganic binder, perforated glass 3 ~5% by weight 1~8% by weight of Sousoclay, 3~5% by weight of quartz powder, 1~5% by weight of water resistance improving additive, 5~10% by weight of Insulad, 1~2% by weight of sodium carbonate, 10~20% by weight of water Including, the second coating adhesive is characterized in that it is dried after coating by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the first coating adhesive.

The semi-nonflammable insulation board for interior and exterior materials of a building according to the present invention further comprises a paper attached to the surface of the second coating adhesive, and the drying of the second coating adhesive is performed by attaching the paper to the surface of the second coating adhesive. is done after

Hereinafter, the semi-non-combustible insulation board 1 for interior and exterior materials of a building according to the present invention will be described in more detail with reference to the accompanying drawings.

The terms or words used in the present specification and claims are not to be construed as limited in their ordinary or dictionary meanings, and on the principle that the inventor can appropriately define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, it is understood that since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, there may be various equivalents and modifications that can be substituted for them at the time of the present application. shall.

1 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to an embodiment.

Referring to Figure 1, the semi-non-combustible insulation board for interior and exterior materials of a building according to the present invention (1) includes an insulation layer for interior and exterior walls of a building (10); Nonwoven fabric 20 for heat reflection provided integrally on one surface of the insulating material layer 10 for interior and exterior walls of a building; and a first coating adhesive coated on the nonwoven fabric 10 for heat reflection.

Semi-non-combustible insulation board 1 according to the present invention is a second coating adhesive 40 coated on the surface of the first coating adhesive 30 , and paper attached to the surface of the second coating adhesive 40 . may further include.

In cross-section, the nonwoven fabric 20 for heat reflection is interposed between the insulating material layer 10 for interior and exterior walls of a building and the first coating adhesive 30, and the first coating adhesive 30 is the heat reflection nonwoven fabric 20 and the second coating adhesive Interposed between the 40 , the second coating adhesive 40 may be interposed between the first coating adhesive 30 and the paper 50 . The insulating material layer 10 for the interior and exterior walls of the building is an insulating material layer exposed on the exterior wall of the building, and is located on the outermost side of the semi-non-combustible insulation board 1 for interior and exterior materials of the building, and the paper 50 may be located on the innermost side.

The nonwoven fabric 20 for heat reflection is characterized in that the nonwoven fabric is coated by immersion, impregnation or spraying in a heat reflection non-combustible liquid. That is, the nonwoven fabric 20 for heat reflection is coated on the nonwoven fabric, one side (the side facing the insulation layer 10) and the other side (the side facing the first coating adhesive 30) of the nonwoven fabric, respectively. It may be composed of a reflective non-combustible liquid. The heat-reflecting nonflammable liquid may improve the heat-reflecting function of the nonwoven fabric.

The heat-reflecting nonflammable liquid is 20-50% by weight of inorganic binder, 5-40% by weight of aluminum paste or aluminum powder, 3-35% by weight of water, 1-8% by weight of airgel, 1-8% by weight of clay, and 0.1- by black pigment It is preferable to include 1% by weight.

In addition, the inorganic binder is liquid sodium silicate 10 to 30% by weight, thermosetting resin 10 to 30% by weight, silica 5 to 20% by weight, sodium bicarbonate 5 to 15% by weight, isocyanate 3 to 10% by weight, inorganic flame retardant 1 to 10 wt%, water resistance improving additive 1-5 wt%, boric acid 0.5-5 wt%, calcium oxide (CaO) 0.5-5 wt%, magnesium oxide 0.5-5 wt%, glyoxal 0.5-3 wt% and water 30- It is preferred to include 50% by weight.

The thermosetting resin is not easily deformed by heat and is used as a purpose for maintaining a shape for realizing the function of a non-combustible material, and a representative example thereof is a melamine resin. Of course, the melamine resin can be replaced with other thermosetting resins, and it is preferably 10 to 20 wt%. When the amount used exceeds 20% by weight, there is a problem in that the elasticity of the coating layer is lowered.

The inorganic flame-retardant material may be exemplified by aluminum hydroxide, and may be substituted with other components belonging to the inorganic flame-retardant material. In the inorganic binder of the present invention, the ratio of the inorganic flame-retardant material is preferably 1 to 10 parts by weight based on the composition of the binder.

The calcium oxide (CaO) acts as a reaction accelerator, and the isocyanate acts to increase adhesion.

The water resistance improving additive may include a softening agent, a dispersing agent, or a curing agent in order to increase the effect of reducing thermal conductivity, and gypsum, slaked lime, and the like may be used. It is preferable that it is 1-5 weight% based on the said inorganic binder composition of this invention.

When the mixing ratio of the inorganic binder is out of the set range, compatibility may be deteriorated, and there is a fear that adhesion may be deteriorated.

The nonwoven fabric can be easily coated when fine pores are formed, and is preferably made of a polyester fabric. The nonwoven fabric made of polyester can preserve the temperature of the room by including an air layer between the polyesters and prevent direct heat or cold air from being transmitted from the inside or outside atmosphere.

The insulating material layer 10 for interior and exterior walls of buildings is preferably expanded polystyrene, expanded polypropylene, expanded polyethylene foam, expanded polyurethane, or expanded polyisocyanurate.

The expanded polystyrene and expanded polypropylene are insulating materials widely used as interior and exterior materials of buildings.

Polyethylene foam is a high-foam product made to have spherical closed cells by crosslinking and foaming. It has excellent completion and restoration power, and good flexibility, so it does not break even after repeated impacts, maintaining its original shape, and has strong compressive strength and resistance. It has excellent chemical properties, so it is chemically stable and can be stored for a long time.

In addition, moisture does not pass through, thermal insulation does not deteriorate, and thermal conductivity is low, so it has excellent thermal insulation and anti-condensation effects. As a semi-rigid foam, it has excellent physical strength and excellent workability and processability, and is used in various molded foams.

Polyurethane insulation is largely divided into two types in terms of flame retardant performance. One is polyurethane foam (PUR foam) with weak flame retardancy, and the other is polyisocyanurate foam (PIR foam) with enhanced flame retardancy performance. Semi-nonflammable PIR foam is a special material developed so strongly that its flame retardancy performance reaches the highest level as an organic material by applying various flame retardant technologies. PUR foam uses polyether polyol as the main raw material, and the ratio of MDI used is also low, about 110~130 compared to Polyol 100, and the molding conditions are about 35℃. PIR foam uses polyester polyol as the main raw material, MDI use ratio is high about 150~200, and the molding temperature is high temperature condition of 55℃ or higher. , theoretically, PIR bonding is known to be induced at a reaction temperature of 120 to 180 °C under a metal catalyst.

A first coating adhesive 30 may be disposed on the surface of the nonwoven fabric 20 for heat reflection. The first coating adhesive 30 may be disposed directly on the surface of the nonwoven fabric 20 for heat reflection. The first coating adhesive 30 may be directly disposed on the surface of the nonwoven fabric 20 for heat reflection in a coating manner.

As for the first coating adhesive 30, the first coating adhesive is 20 to 30% by weight of organic binder, 1 to 2% of ceramic wool, 1 to 10% by weight of inorganic flame retardant, 20 to 40% of expanded graphite, 5 to 10% of insulin, and vermiculite 1 to 3% by weight, 1-3% by weight of ether polyol, 0.5 to 1.5% by weight of ester polyol, 0.5 to 1.5% by weight of the catalyst. That is, the first coating adhesive 30 may be an organic adhesive.

The first coating adhesive 30 may be foamed about 150 times to 300 times when the temperature of 180 degrees or more lasts for 1 minute or more. That is, as described above, the first coating adhesive 30 contains 1 to 2% of ceracle wool and 5 to 10% of insulad, so that the heat 180 provided from the outside of the building (insulation layer 10 for inner and outer walls of the building) (providing a temperature higher than or equal to 1 minute) may have a blocking effect. Here, the material that is foamed by about 150 to 300 times may be attributed to 20 to 40% of expanded graphite. That is, 20 to 40% of expanded graphite may increase in particle size by about 150 to 300 times when the temperature of 180 degrees or more continues for 1 minute or more. For this reason, the thickness (T1) of the first coating adhesive 30 may be increased to about 5 to 10 times compared to before the temperature of 180 degrees or more is applied. The first coating adhesive 30 may be formed by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the nonwoven fabric 20 for heat reflection and then drying the coating. After drying, the weight may be 0.4 to 3 kg per square meter.

The second coating adhesive 40 may be disposed on the first coating adhesive 30 . The second coating adhesive 40 may be formed by being directly coated on the surface of the first coating adhesive 30 . The second coating adhesive 40 is 50 to 60% by weight of inorganic binder, 3 to 5% by weight of perforated glass, 1 to 8% by weight of Sousi clay, 3 to 5% by weight of quartz powder, 1 to 5% by weight of water resistance improving additive, Insulad 5 ˜10 wt %, sodium carbonate 1-2 wt %, and water 10-20 wt %. That is, the second coating adhesive 40 may be an inorganic adhesive.

The second coating adhesive 40 may be formed by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the first coating adhesive 30 to be coated and then dried.

The bonding strength between the first coating adhesive 30 and the nonwoven fabric 20 for heat reflection may be higher than the bonding strength between the second coating adhesive 40 and the nonwoven fabric 20 for heat reflection. Through this, since the first coating adhesive 30 is directly formed on the nonwoven fabric 20 for heat reflection, there is an advantage that the durability of the non-combustible insulation board 1 for interior and exterior materials of a building can be increased.

The second coating adhesive 40 may be foamed about 3 to 8 times when the temperature of 120 degrees or more lasts for 1 minute or more. That is, as described above, the first coating adhesive 30 contains 5 to 10% of the insulad, so that the heat (temperature of 120 degrees or more) provided from the outside of the building (the heat insulating material layer 10 for inner and outer walls of the building) is provided for 1 minute or more ) may have a blocking effect.

Here, the material that is foamed about 3 to 8 times may be attributed to 3 to 5 wt% of the quartz powder. That is, 3 to 5% by weight of the quartz powder may increase in particle size by about 3 to 8 times when the temperature of 120 degrees or more continues for 1 minute or more. Due to this, the thickness (T2) of the second coating adhesive 40 may be increased to about 1.5 to 2 times compared to before the temperature of 120 degrees or more is applied. The second coating adhesive 40 may be formed by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the first coating adhesive 30 to be coated and then dried.

The moisture permeability of the first coating adhesive 30 may be lower than that of the second coating adhesive 40 . For example, the moisture permeability of the first coating adhesive 30 may be 50% or less than that of the second coating adhesive 40 . For this reason, since the first coating adhesive 30 performs a moisture permeability function from the front, moisture permeation to the second coating adhesive 40 is minimized, and the durability of the non-combustible insulation board 1 for interior and exterior materials of buildings can be increased. have.

(Example)

Hereinafter, the present invention will be described in more detail through specific examples. The following examples are intended to illustrate the present invention, but the present invention is not limited by the following examples.

Preparation Example 1: Preparation of the first coating adhesive

After putting 20 liters of water in the stirrer and adding the mixed material as shown in Table 1 below, the first coating adhesive was prepared through a process of stirring until the mixture was sufficiently harmonized, and the prepared first coating adhesive was It was coated on the surface of the nonwoven fabric 20 for heat reflection of a building, followed by drying (Preparation Example 1, Comparative Examples 1 and 2 preparation).

ingredient content Preparation Example 1 Comparative Example 1 Comparative Example 2 organic binder 30% 69% 34% Sacred Wool 2% 2% 2% inorganic flame retardant 5% 5% 5% expanded graphite 40% 15% 50% Insulad 17% 3% 3% vermiculite 2% 2% 2% ether polyol 2% 2% 2% ester polyol One% One% One% catalyst One% One%

Production Example 2: Second coating adhesive and manufacturing of non-combustible insulation board for interior and exterior materials of buildings

After adding the mixed material as shown in Table 2 below in the stirrer, a second coating adhesive was prepared through a process of stirring until the mixture was sufficiently harmonized, and the prepared second coating adhesive was prepared by the first coating The surface of the adhesive was coated and dried to prepare a non-combustible insulation board for interior and exterior materials of buildings (Preparation Example 2, Comparative Example 3 preparation). Comparative Example 3 is a comparison

ingredient content Preparation Example 2 Comparative Example 3 weapon binder 56% 60% perforated glass 5% 5% defensive clay 2% 2% quartz powder 5% One% Additives for improving water resistance One% One% Insulad 10% 10% sodium carbonate One% One% water 20% 20%

Example 1: Non-combustible insulation board prepared in Preparation Example 2

Comparative Example 1: Non-combustible insulation board comprising the first coating adhesive prepared by Comparative Example 1 and the second coating adhesive prepared by Comparative Example 3

Comparative Example 2: Non-combustible insulation board comprising a second coating adhesive prepared by Comparative Example 3 prepared by Comparative Example 2

Test Example 1: Gas toxicity test

(Production of specimen)

9 to 16, 25mm through-holes were formed in each of the non-combustible insulation boards for interior and exterior materials of buildings manufactured by Example 1, Comparative Example 1, and Comparative Example 2, and 850 degree horizontal fire test In this way, the non-combustible insulation board for interior and exterior materials of the building was heated.

(Test result)

As a result of conducting a gas hazard test on the non-combustible insulation board for interior and exterior materials of a building manufactured in Example 1, it was confirmed that the first coating adhesive 30 and the second coating adhesive 40 filled the through hole. On the other hand, in the non-combustible insulation board for interior and exterior materials of a building manufactured according to Comparative Example 1, it was confirmed that the through-hole remained penetrated. In the non-combustible insulation board for interior and exterior materials of a building manufactured by Comparative Example 2, as in Example 1, it was confirmed that the first coating adhesive and the second coating adhesive filled the through hole.

Looking at these test results, it can be confirmed that the board according to the present invention has a remarkable effect of lowering the emission amount of harmful gases.

However, it was confirmed that the first coating adhesive of the non-combustible insulation board manufactured by Comparative Example 2 not only fills all the through holes, but also foamed to contact the lower surface of the insulation layer for inner and outer walls.

As such, although the present invention has been described with reference to the drawings and the specification for preferred embodiments of the present invention, it is apparent that various modifications and equivalent implementations are possible by those skilled in the art.

2 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

Referring to Figure 2, the first coating adhesive 30' of the semi-non-combustible insulation board 2 according to the present embodiment may be formed by foaming 20-40% of expanded graphite at a temperature of 180 degrees or more for 1 minute or more. have. The thickness (T1') of the first coating adhesive 30' may be about 5 to 10 times or more than the thickness T1 of the first adhesive coating 30 according to FIG. 1 . The first adhesive coating 30 ′ is thermally expanded so that the side surface of the first adhesive coating 30 ′ may include a portion of a curved surface in cross-section.

3 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

Referring to FIG. 3, the insulating material layer 10' for the inner and outer walls and the nonwoven fabric 20' for heat reflection of the semi-non-combustible insulation board 3 according to this embodiment include a through hole (H) completely penetrated in the thickness direction, and , It is different from the semi-non-combustible insulation board 2 according to FIG. 2 in that a part of the first coating adhesive 30 "_1 fills the through hole (H).

The through hole H completely penetrates the upper surface from the lower surface 10a of the insulating material layer 10'. The through hole (H) may be formed by applying heat of 850 degrees during the gas toxicity test. In this case, the first coating adhesive 30''_1 may be in direct contact with the inner surface 10'S of the heat insulating material layer 10' in contact with the through hole H. The first coating adhesive 30''_1 is divided into a first part 30'' positioned on the nonwoven fabric 20' and a second part 30_P filling the through hole H. The sum t1'' of the thicknesses of the second part 30_P and the first part 30'' overlapping the second part 30_P is greater than the thickness t1'_1 of the first part 30'' itself. could be bigger Since a portion of the first coating adhesive 30' of FIG. 2 forms the second part 30_P, the thickness t1'_1 of the first part 30'' is greater than the thickness t1' according to FIG. can be small

The lower surface of the second part 30_P may be located higher than the lower surface 10a of the heat insulating material layer 10 ′. That is, even if the first coating adhesive 30''_1 is foamed with heat of about 180 degrees or more for 1 minute or more, a part of the first coating adhesive 30''_1 does not protrude downward from the lower surface 10a. can be designed When a part of the first coating adhesive 30''_1 protrudes downward from the lower surface 10a, the aesthetics of the exterior of the building is not good when a fire occurs, and then the process of removing the first coating adhesive from the insulation layer is easy it may not be However, in the first coating adhesive 30''_1 of the semi-non-combustible insulation board 3 according to this embodiment, even if heat of about 180 degrees or more is provided for 1 minute or more and foaming, the first coating adhesive 30''_1 A part may be designed so as not to protrude downward from the lower surface 10a.

4 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

Referring to FIG. 4 , the second coating adhesive 40 ′ of the insulation board 4 according to the present embodiment has a thickness of 1.5 to 2 times greater than that of the second coating adhesive 40 according to FIG. 3 . It is different from the embodiment according to 3 . That is, the thickness of the first coating adhesive 30''_1 is increased by about 1.5 to 2 times compared to before the temperature of 120 degrees or more provided from the application is applied. The first coating adhesive (30''_1) contains 1 to 2% of ceracle wool and 5 to 10% of insulation, so that the heat (temperature of 180 degrees or more) provided for more than 1 minute), so that only 120 degrees of heat is provided to the second coating adhesive 40 ′.

The second coating adhesive 40 ′ is thermally expanded so that the side surface of the second adhesive coating 40 ′ may include a portion of a curved surface in cross-section.

5 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

Referring to Figure 5, the first coating adhesive 30''' of the semi-non-flammable insulation board 5 has a first portion 30'''_2 overlapping the through hole (H) and the through hole (H) and and a non-overlapping second portion 30'''_1. In a cross-sectional view of the first part 30'''_2, the upper surface 30'''S2 and the lower surface 30'''S1 each include a curved surface, and the first part 30'''_2 has a heat insulating material layer ( 10') may be in contact with the inner surface 10'S and the inner surface 20'S of the nonwoven fabric 20' for heat reflection. The second coating adhesive is not only the second coating adhesive 40' of FIG. 4, but also a third part 40'_P between the second coating adhesive 40' and the first part 30'''_2. may include The sum of the thicknesses of the second coating adhesive 40 ′ and the third portion 40 ′_P may be greater than the thickness of the second coating adhesive 40 ′. This embodiment shows a structure in which the first part 30'''_2 having more fluidity compared to the second coating adhesive is formed as the through-hole H is filled over time.

6 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

6, the first coating adhesive 30''' of the semi-non-combustible insulation board 6 has a first portion 30'''_2 overlapping the through hole (H) and the through hole (H) and The non-overlapping second part 30'''_1 is included, and the second coating adhesive 40''' of the semi-non-flammable insulation board 6 is the first part 40' overlapping the through hole H. It is different from the embodiment according to FIG. 5 in that it includes ''_2 and the second part 40'''_1 that does not overlap the through hole H. In a cross-sectional view of the first portion 40'''_2, an upper surface and a lower surface may each include a curved surface.

7 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

7, the lower surface of the second part 30_P_1 of the first coating adhesive 30''_1_1 of the semi-non-combustible insulation board 7 according to the present embodiment is the lower surface 10a of the insulating material layer 10' It is different from the embodiment according to FIG. 4 in that it is located on the same line as .

As described above in FIG. 4 , when a part of the first coating adhesive 30 ''_2 protrudes downward from the lower surface 10a, the aesthetics of the exterior of the building is not good when a fire occurs, and then the first coating adhesive The process of removing it from the insulation layer may not be easy. However, in the event of a fire, heat and harmful gases from the fire may penetrate more through the through hole (H) than the area in which the through hole (H) of the semi-non-combustible insulation board 7 is not formed. As described above, the larger the thickness (t1''_1) of the first coating adhesive 30''_1_1 overlapping the through hole (H) is, the greater the effect of preventing the penetration of heat and harmful gases due to fire. As in the embodiment, the lower surface of the second part 30_P_1 of the first coating adhesive 30''_1_1 of the semi-non-flammable insulation board 7 is positioned on the same line as the lower surface 10a of the insulating material layer 10' If designed, the effect of preventing the penetration of heat and harmful gases due to fire can be further improved.

8 is a cross-sectional view of a semi-non-combustible insulation board for interior and exterior materials of a building according to another embodiment.

Referring to Figure 8, the semi-non-combustible insulation board 8 according to the present embodiment has a third portion ( 30_P_3) is different from the embodiment according to FIG. 7 in that it further includes.

More specifically, the third part 30_P_3 may be spaced apart from the first part 30 ″ with the second part 30_P_2 interposed therebetween. The third portion 30_P_3 may be positioned lower than the insulating material layer 10 ′ in cross-section. A width of the third portion 30_P_3 may be greater than a width of the through hole H. The third portion 30_P_3 may directly contact the lower surface 10a of the heat insulating material layer 10 ′.

As described above in FIG. 7, the larger the thickness (t1''_1) of the first coating adhesive 30''_2 overlapping the through hole (H) is, the greater the heat and harmful gas from the fire in the through hole (H). It has the effect of preventing penetration. The sum of the thicknesses of the second part 30_P_2 and the third part 30_P_3 may be greater than the thickness of the semi-non-flammable insulation board 10 ′.

The first coating adhesive 30''_2 according to this embodiment may be formed by foaming about 310 times to 400 times when the temperature of 180 degrees or more lasts for 1 minute or more. The first coating adhesive 30''_2 is formed through drying of the first coating adhesive, and the first coating adhesive is 15 to 25% by weight of an organic binder, 1 to 2% of ceramic wool, 1 to 10 of inorganic flame retardant. Weight %, expanded graphite 45-55%, insullad 5-10%, vermiculite 1-3 wt%, ether polyol 1-3 wt%, ester polyol 0.5-1.5 wt%, catalyst 0.5-1.5 wt% .

The present invention described above has been described with reference to one embodiment shown in the drawings, but this is merely exemplary, and various modifications and equivalent other embodiments are possible by those skilled in the art. should be made clear. Accordingly, the true technical protection scope of the present invention should be construed by the appended claims, and all technical ideas within the equivalent scope should be construed as being included in the scope of the present invention.

10: Insulation layer for inner and outer walls
20: heat reflection non-combustible liquid coating nonwoven layer
30: first coating adhesive
40: second coating adhesive

Claims (3)

insulation layer for interior and exterior walls of buildings;
Non-woven fabric for heat reflection and
A first coating adhesive coated on the nonwoven fabric for heat reflection,
The first coating adhesive is an organic binder 20-30% by weight, ceracle wool 1-2%, inorganic flame retardant 1-10% by weight, expanded graphite 20-40%, insulin 5-10%, vermiculite 1-3% by weight, ether polyol 1 to 3% by weight, 0.5 to 1.5% by weight of ester polyol, 0.5 to 1.5% by weight of the catalyst,
The first coating adhesive is dried after being coated by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the nonwoven fabric for heat reflection,
Further comprising a second coating adhesive coated on the surface of the first coating adhesive, wherein the second coating adhesive is 50 to 60% by weight of inorganic binder, 3 to 5% by weight of perforated glass, 1 to 8% by weight of Soubi clay, quartz 3 to 5% by weight of powder, 1 to 5% by weight of water resistance improving additive, 5 to 10% by weight of insulin, 1 to 2% by weight of sodium carbonate, and 10 to 20% by weight of water, wherein the second coating adhesive is the first Non-combustible insulation board for interior and exterior materials of a building, characterized in that it is coated and then dried by distributing 0.2 to 1.5 kg per 1 m2 on the surface of the coating adhesive.
delete According to claim 1,
Non-combustible insulation board for interior and exterior materials of buildings, characterized in that it further comprises a paper attached to the surface of the second coating adhesive, and the drying of the second coating adhesive is made after attaching the paper on the surface of the second coating adhesive .

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