KR102315321B1 - Skin material of insulating material for building and composite insulating material for building comprising the same - Google Patents

Abstract

The present invention relates to a surface material of an insulating material for construction and a composite insulating material for construction including the same, wherein a first glass paper layer, an aluminum foil layer, a glass scrim layer, and a second glass paper layer are sequentially stacked from the top to the bottom. It relates to a composite insulation material for construction in which a thermosetting foam layer is laminated on a surface material and a lower portion of the surface material of the insulation material for construction.

Description

Surface material of insulation for construction and composite insulation for construction including the same

The present invention relates to a surface material of an insulating material for construction and a composite insulating material for construction including the same, wherein a first glass paper layer, an aluminum foil layer, a glass scrim layer and a second glass paper layer are sequentially stacked from the top to the bottom. And it relates to a composite insulation for construction in which a thermosetting foam layer is laminated on a lower portion of the surface material of the insulation for construction.

In general, it is possible to maintain a constant indoor temperature with less energy by reducing the effect of external temperature changes on the internal temperature of the building by attaching an insulating material to the wall of the building to prevent the transfer of heat. Among these insulating materials for construction, in the insulating material used by attaching to the concrete pouring surface or the wet mortar adhesive surface, the structural stability such as the gap is widened because the surface material of the insulator and the concrete pouring surface or the wet mortar adhesive surface do not adhere well. have. Accordingly, there is an increasing demand for a surface material for an insulating material for buildings with improved adhesion.

As an example, the surface material of the building insulation material previously disclosed in Korean Patent Application Laid-Open No. 10-2016-0017724 includes kraft paper as the second outer layer, which is a layer to be attached to the thermosetting foam contained in the insulation material, and By including at least one selected from the group consisting of a thermoplastic plastic layer, a non-woven fabric, a woven fabric, a kraft paper, and a combination thereof, the first outer layer, which is a layer to be adhered to the concrete pouring surface or the wet mortar adhesive surface at the same time, the building insulation material The surface material of the thermosetting foam is intended to realize excellent adhesion to both the wall and the thermosetting foam.

However, paper-based face materials such as kraft paper did not have sufficient adhesion to the concrete pouring surface, wet mortar adhesive surface, and thermosetting foam, so that peeling of the face material occurred well and the semi-incombustibility was not good. Therefore, the development of a composite insulating material for construction including a surface material of a building insulation material and a surface material of the building insulation material that can realize semi-incombustibility while being suitable for wet construction due to excellent adhesion to the concrete pouring surface or wet mortar bonding surface is required. .

KR 10-2016-0017724 A (2016. 02. 17.)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a surface material for a building insulation material having adhesion strength and semi-incombustible performance suitable for wet construction, and a composite insulation material for construction including the same.

In order to achieve the above object, the present invention provides a surface material for a building insulation material in which a first glass paper layer, an aluminum foil layer, a glass scrim layer, and a second glass paper layer are sequentially stacked from top to bottom.

In addition, the present invention provides a composite insulating material for construction in which a thermosetting foam layer is laminated on the lower surface of the insulating material for construction.

The surface material of the insulating material for construction of the present invention has excellent adhesion to both the concrete pouring surface, wet mortar adhesive surface, and thermosetting foam layer by laminating a low basis weight glass paper layer at the top and bottom.

In addition, the surface material of the insulating material for construction of the present invention has an excellent effect of dimensional stability and durability, including the glass scrim layer.

In addition, the surface material of the insulating material for construction of the present invention has an effect that can implement semi-non-combustible performance, including the aluminum foil layer.

In addition, the composite insulating material for construction of the present invention has an effect that a thermosetting foam layer is laminated on the lower portion of the surface material of the building insulating material to implement an insulating material excellent in adhesion, semi-incombustibility, dimensional stability, and durability.

1 is a cross-sectional view schematically showing a surface material of a building insulating material of the present invention according to an embodiment.
2 is a cross-sectional view schematically showing a surface material of a building insulation material of the present invention according to another embodiment.
Figure 3 is a cross-sectional view schematically showing the composite insulation for construction of the present invention.
4 is a cross-sectional view schematically showing a state in which the composite insulation for construction of the present invention is attached to a concrete wall.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Here, in adding reference numerals to the components of each drawing, it should be noted that only the same components are marked with the same reference numerals as much as possible even though they are displayed on different drawings.

In one embodiment of the present invention, the first glass paper layer 11, the aluminum foil layer 13, the glass scrim layer 14, and the second glass paper layer 15 are sequentially stacked from the top to the bottom of the building insulation material. A surface material 10 is provided (see FIG. 1 ).

The first glass paper layer 11 of the present invention means that the glass fiber is cut to a predetermined length and manufactured by using a glass chop as a main raw material.

As a specific example, glass chop, water and additives are mixed together to form a raw material, and after the raw material is subjected to a papermaking process, it is impregnated with an organic binder solution to complement the surface smoothness and mechanical properties of the formed paper, It may be manufactured by drying, but is not limited thereto and may be manufactured by various known glass paper manufacturing processes.

The first glass paper layer 11 may be located on the top of the surface material 10 of the building insulation material. Accordingly, in the process of attaching the surface material 10 of the building insulating material to the concrete pouring surface or the wet mortar adhesive surface 200, a hydrophilic binder such as cement or mortar penetrates into the inside of the first glass paper layer 11, The first glass paper layer 11 can be firmly attached to the concrete pouring surface or the wet mortar adhesive surface 200 by being fixed to each other while the hydration reaction is in progress.

The first glass paper layer 11 may have a thickness of 100-300 μm, or 150-250 μm. By having a thickness within the above range, the adhesion strength can be implemented at a sufficiently high level without excessively increasing the thickness of the surface material 10 of the building insulation material.

The basis weight of the first glass paper layer 11 can be 20-50g / m ^2, or 25-40g / m ^2. By having a basis weight within the above range, excellent flame retardancy and adhesion to the concrete pouring surface or the wet mortar adhesive surface 200 can be simultaneously implemented. Specifically, when the basis weight of the first glass paper layer 11 is less than the above range, the organic binder content in the glass paper layer is small, so the adhesion to the concrete pouring surface or the wet mortar adhesive surface 200 may be reduced, and the In the case of exceeding the range, as the content of the organic binder in the glass paper layer increases, the flame retardancy may decrease, and the manufacturing cost may increase.

The aluminum foil layer 13 increases the reflectivity of the material surface and reduces the emissivity to minimize the effect of radiant heat transfer to realize semi-incombustibility, and at the same time resist moisture and a thermosetting foam layer 20 to be described later. It acts as a barrier layer against the foaming gas of the , and realizes a high level of long-term thermal insulation, and may be laminated on the lower portion of the first glass paper layer 11 .

The thickness of the aluminum foil layer 13 may be 6-30 μm, or 10-25 μm. The aluminum foil layer 13 has a thickness within the above range, thereby simultaneously realizing a high level of semi-incombustibility and resistance to moisture without excessively increasing the thickness of the surface material 10 of the building insulation material, The building insulation material to which the surface material 10 is attached can effectively suppress deformation such as shrinkage, expansion and distortion due to moisture while improving stability by slowing down the speed at which the fire spreads when a fire occurs.

The glass scrim layer 14 of the present invention includes glass fiber yarns formed by twisting glass filaments produced by hot-melt spinning glass fibers, or includes a glass fiber fabric formed by weaving the glass fiber yarns, or the glass fiber fabrics. It may include a glass fiber mat formed by being connected to the glass fiber yarn.

The glass scrim layer 14 may provide durability to the surface material and increase dimensional stability, and may be laminated under the aluminum foil layer 13 .

The glass fiber yarn may include glass fibers including E-glass (Electrical-Glass), C-glass (Chemical-Glass), or E-CR glass (Electrical Corrosion Resistant Glass).

The E-glass has an alkali content of about 0.8% or less, has excellent electrical properties and weathering resistance, and can withstand long-term use. The aluminosilicate glass which is an oxide of aluminum and calcium or the oxide of silicon, aluminum, and boron may be one of the alumino calcium silicate glasses.

The C-glass is an alkali-resistant glass, which has excellent acid resistance and is mainly used for filtration of acidic liquids and reinforcement of reinforced plastics for acid-resistant containers. This alkali-metal calcium glass has excellent chemical resistance.

In addition, the E-CR glass is a glass in which an oxide of boron is not formed in the composition of the E-glass, and has excellent acid resistance.

Specifically, the glass fiber yarn may include E-glass having relatively excellent weathering resistance compared to other glasses due to a low alkali content.

The glass fiber yarn may be formed by twisting a glass filament prepared by heat-melting spinning the glass fiber. After melting at a temperature of about 1600°C, ordinary glass fibers exist in the form of strands by connecting about 100 to about 4000 filaments with a binder. As such, the glass fibers existing in the form of strands are heat-melted and spun to form a glass filament, and twisted to form a glass fiber yarn.

At this time, the diameter of the glass fiber yarn may be 8-25㎛, or 10-20㎛. When the diameter of the glass fiber yarn is less than the above range, the strength of the glass scrim layer 14 may be reduced, and if the diameter exceeds the above range, the thickness of the glass scrim layer 14 may be excessively thick.

The glass scrim layer 14 may be formed by warping the glass fiber yarn, undergoing a preparation process, and weaving it through a weaving process.

In this case, the weaving density of the glass scrim layer 14 may be that of 2-11 or 3-10 warp and 2-11 or 3-10 weft yarns orthogonal within a predetermined size of 1 inch by 1 inch. When the weave density of the glass scrim layer 14 is less than the above range, the dimensional stability improvement effect may be insignificant, and when it exceeds the above range, the manufacturing cost is increased.

In addition, the thickness of the glass scrim layer 14 may be 0.1-3 mm, or 0.5-2.5 mm. When the thickness of the glass scrim layer 14 is maintained within the above range, external impact applied to the surface material and impact caused by scratches, flame propagation, and the like can be minimized.

The second glass paper layer 15 may be laminated on the lower portion of the glass scrim layer 14 , and may be attached to a thermosetting foam layer 20 to be described later to form a composite insulation material 100 for construction to be described later.

The basis weight of the second glass paper layer 15 may be 20-50g / m ^2, or 25-40g / m ^2. By having a basis weight within the above range, it is possible to simultaneously implement excellent flame retardancy and adhesion to the thermosetting foam layer 20 . Specifically, when the basis weight of the second glass paper layer 15 is less than the above range, as the thickness of the second glass paper layer 15 decreases, the height difference in the width or length direction of the glass scrim layer 14 is calculated. It may not be able to compensate smoothly, and since the content of the organic binder and glass chop is small, the adhesion to the thermosetting foam layer 20 may be reduced. The flame retardancy may be lowered, and the manufacturing cost may increase.

Since the second glass paper layer 15 has the same composition and thickness range as the first glass paper layer 11, repeated descriptions are omitted.

The surface material 10 of the building insulation material is selectively formed between the first glass paper layer 11 and the aluminum foil layer 13, and between the glass scrim layer 14 and the second glass paper layer 15, as a hydrophobic plastic film layer. (12) may be further included (see FIG. 2). The hydrophobic plastic film layer 12 may be at least one selected from the group consisting of polyethylene, polypropylene, polyester, and combinations thereof, or may include a fluorine coating film.

The fluorine coating film may be, for example, a thermoplastic plastic film coated with a fluorine coating solution containing a fluorine resin. The fluorine coating solution and the thermoplastic plastic film may be used without limitation, a type known in the art.

The thermoplastic plastic film may include, for example, any one or a plurality of polycarbonate, polyamide, polyvinyl chloride, and nylon.

Since the hydrophobic film layer 12 is positioned between the first glass paper layer 11 and the aluminum foil layer 13 and between the glass scrim layer 14 and the second glass paper layer 15, the adhesive force between each layer can improve

In addition, the water contact angle of the hydrophobic plastic film layer 12 can be implemented at a high level of about 70-150°, so that the moisture permeability of the composite insulation material for construction 100 including the surface material 10 of the insulation material for construction is further increased. By reducing the adhesive strength and the performance of the thermosetting foam layer 20 to be described later, it can be maintained uniformly for a long time.

In one embodiment of the present invention, there is provided a composite thermal insulation material 100 for construction in which a thermosetting foam layer 20 is laminated under the surface material 10 of the construction insulation material (see FIG. 3 ).

The thermosetting foam layer 20 may be, for example, a polyurethane foam, a polyisocyanurate foam, or a phenol foam foam, specifically, a phenol foam foam.

The density of the thermosetting foam layer 20 may be 30-50 kg/m ³ , or 35-45 kg/m ³ . By having a density within the above range, these two physical properties can be implemented at an excellent level at the same time by appropriately harmonizing heat insulation and durability. Specifically, when the density is less than the above range, compressive strength or handleability is low, and when it exceeds the above range, there is a problem in that the price increases while the thermal insulation performance is lowered.

In addition, the thickness of the thermosetting foam layer 20 may be 20-200mm, or 50-150mm. By having a thickness within the above range, it is possible to implement sufficiently excellent thermal insulation properties without excessively increasing the total thickness of the insulating material for construction 100 .

Meanwhile, a third glass paper layer 30 may be laminated under the thermosetting foam layer 20 in order to strengthen the adhesion between the thermosetting foam layer and the finishing material. The third glass paper layer 30 may have a thickness of 100-300 μm, or 150-250 μm. By having a thickness within the above range, the adhesive strength can be implemented at a sufficiently high level without excessively increasing the thickness of the composite insulating material for construction 100 .

The basis weight of the third glass paper layer 30 may be 75-105 g/m ² , or 85-95 g/m ² . By having a basis weight within the above range, it is possible to implement excellent adhesion to the finishing material as well as adhesion to the thermosetting foam layer.

When the basis weight of the third glass paper layer 30 is less than the above range, when the caterpillar method is used, the third glass paper layer 30 is formed with the thermosetting foam layer 20 before the thermosetting foam layer 20 is cured and foamed. It is impregnated with the thermosetting resin forming sex may be reduced.

4 schematically shows a cross-section of the wall 200 to which the composite thermal insulation material 100 for construction is attached. The building composite insulation 100 is the same as described above in another embodiment.

The layers corresponding to the surface material 10 of each of the above-described building insulation materials are not particularly limited, and may be adhered using a known bonding method pertaining to the art. For example, an adhesive method using an adhesive, a thermocompression bonding method using a thermoplastic film, and the like may be used.

The bonding method of the surface material 10 of the building insulation material and the thermosetting foam layer 20 is not particularly limited, and may be adhered using a known bonding method belonging to the art. For example, an adhesive method using an adhesive, a thermocompression laminating method using a thermoplastic film, or a continuous supply of the surface material 10 of the building insulation material to a caterpillar mass production line, and then foaming and curing the thermosetting foam and attaching it at the same time method can be used.

The adhesion strength of the surface material 10 of the building insulation material of the present invention to the thermosetting foam layer 20 may be 140-200gf/25mm or 150-190gf/25mm. The second glass paper layer 15 and the thermosetting foam layer 20 included in the surface material 10 of the building insulation material are not only attached by foaming pressure, but also cut included in the second glass paper layer 15 The fiber and the thermosetting resin included in the thermosetting foam layer are physically anchored to exhibit the above adhesive strength.

The adhesion strength to the concrete pouring surface or the wet mortar adhesive surface 200 of the surface material 10 of the building insulation material of the present invention may be 3.0-20N/cm ² , or 3.7-15N/cm ² It can implement excellent adhesion have.

The heat release amount of the composite insulating material for construction of the present invention may be 2-8MJ, or 2-5MJ, so that excellent semi-incombustibility can be realized.

The dimensional change rate of the composite insulating material for construction of the present invention may be less than 0.5%, so that excellent dimensional stability can be realized.

Since the water absorption rate of the composite insulation for construction of the present invention may be less than 4%, excellent durability may be realized.

Hereinafter, preferred examples are presented to help the understanding of the present invention, but the following examples are merely illustrative of the present invention, and it will be apparent to those skilled in the art that various changes and modifications are possible within the scope and spirit of the present invention, It goes without saying that changes and modifications fall within the scope of the appended claims.

[Example]

<Example 1>

From top to bottom, the first glass paper layer with a thickness of 200 μm and a basis weight of 35 g/m ² , an aluminum foil layer with a thickness of 20 μm, and an aluminum foil layer with a thickness of 1 mm and 1 inch×1 inch, 5 warps and 5 wefts are orthogonal The surface material of the building insulation was manufactured by thermocompression-bonding the laminated glass scrim layer and the second glass paper layer having a thickness of 200 μm and a basis weight of 35 g/m ^{2 using a polyethylene film, which is a hydrophobic plastic film.}

Specifically, a polyethylene film was placed between the first glass paper layer and the aluminum foil layer and between the glass scrim layer and the second glass paper layer by the T-die extrusion method, and then thermocompression lamination was performed to prepare a surface material for a building insulation material.

Then, the surface material of the building insulation material is continuously supplied to the caterpillar mass production line, the third glass paper layer having a thickness of 200 μm and the basis weight of 80 g/m ² is continuously supplied to the bottom, and the surface material of the building insulation material and the third glass paper layer The composition for molding a thermosetting foam was discharged while foaming and curing to prepare a composite insulating material for construction in which a thermosetting foam layer was attached between the surface material of the building insulating material and the third glass paper layer.

On the other hand, the thermosetting foam layer has a density of 40 kg / m ³ , The thickness was 100 mm.

<Example 2>

Compared with Example 1, the first glass paper layer and the second glass paper layer A surface material for a building insulation material and a composite insulation material for construction using the same were prepared in the same manner except that a thickness of 200 μm and a basis weight of 20 g/m ^{2 were used.}

[Comparative example]

<Comparative Example 1>

A 5 μm thick aluminum foil layer was placed on top, and 100 μm thick kraft paper was placed under the aluminum foil layer, followed by thermocompression lamination using a polyethylene film to prepare a surface material for a building insulation material.

Then, the surface material of the building insulation material was ^{laminated by thermocompression bonding using a polyethylene film so that the density was 40 kg/m 3} and the thermosetting foam layer having a thickness of 100 mm was respectively positioned on the upper and lower portions to prepare a composite insulation material for construction.

At this time, the kraft paper of the surface material of the building insulation material was laminated so as to be in contact with the thermosetting foam layer.

<Comparative Example 2>

A glass paper layer having a thickness of 200 μm and a basis weight of 80 g/m ² was used as a surface material for the insulating material for construction.

Then, the surface material of the building insulation material was ^{laminated by thermocompression bonding using a polyethylene film so that the density was 40 kg/m 3} and the thermosetting foam layer having a thickness of 100 mm was respectively positioned on the upper and lower portions to prepare a composite insulation material for construction.

<Comparative Example 3>

Compared with Example 1, except that the glass scrim layer was not included, the surface material of the building insulation material and the building composite insulation material were prepared in the same manner.

<Comparative Example 4>

Compared with Example 1, the surface material of the building insulating material and the building material were used in the same manner except that a glass paper layer having a thickness of 200 μm and a basis weight of 70 g/m ^{2 was used as the first glass paper layer and the second glass paper layer.} A composite insulator was prepared.

<Comparative Example 5>

Compared with Example 1, the surface material of the building insulation material and the building material were used in the same manner except that a glass paper layer having a thickness of 200 μm and a basis weight of 10 g/m ^{2 was used as the first glass paper layer and the second glass paper layer.} A composite insulator was prepared.

<Comparative Example 6>

Compared with Example 1, the surface material of the building insulation material and the A composite insulation material for construction was manufactured.

<Comparative Example 7>

Compared with Example 1, the surface material of the building insulation material and the building material in the same manner except that the first glass paper layer, the aluminum foil layer, the second glass paper layer, and the glass scrim layer have the stacking order from the top to the bottom A composite insulator was prepared.

<Comparative Example 8>

Compared with Example 1, the surface material of the building insulating material and the building composite in the same manner except that the first glass paper layer, the glass scrim, the aluminum foil layer, and the second glass paper layer have the stacking order from the top to the bottom. Insulation material was prepared.

<Comparative Example 9>

Compared with Example 1, the surface material of the building insulation material and the building composite in the same manner except that the first glass paper layer, the glass scrim, the second glass paper layer and the aluminum foil layer have the stacking order from the top to the bottom. Insulation material was prepared.

[Reference example]

<Reference Example 1>

Compared with Example 1, the surface material of the building insulation material and the composite insulation material for construction were prepared in the same manner except that a glass scrim layer in which one warp and one weft were orthogonal to a glass scrim layer was used within a predetermined size of 1 inch × 1 inch as a glass scrim layer. did.

<Reference Example 2>

Compared with Example 1, the surface material of the building insulation material and the composite insulation material for construction were prepared in the same manner as in Example 1, except that a glass scrim layer having 12 warps and 12 wefts in a predetermined size of 1 inch × 1 inch was used as the glass scrim layer. did.

[Experimental example]

<Adhesive strength>

The surface material of each of the composite insulation materials for construction was prepared as a sample of 200 × 200 × 70 mm and measured using UTM (Instron, UTM). The adhesion strength was measured for each of the thermosetting foam layer and the concrete-casting surface or wet mortar-adhesive surface. Specifically, the adhesion strength with the thermosetting foam layer was measured by making a cut on the surface material of the building insulation material at intervals of 25 mm, fixing the end to a tensile jig, and peeling at a tensile rate of 300 mm/min at 90 degrees. The adhesion strength between the concrete pouring surface and the wet mortar bonding surface follows the KS F 4716 method, and the mortar was placed on the surface material of the building insulation material in a size of 40 × 40 × 2 mm and cured for 2 weeks. After that, after bonding with a tensile jig with an epoxy adhesive, the adhesion strength was measured using a tensile tester.

<Heat release>

In accordance with KS F ISO 5660-1, the total heat release was measured using a cone calorimeter (FESTEC, cone calorimeter) to evaluate the semi-incombustibility, and the smaller the heat release value, the higher the semi-incombustibility.

Specifically, each of the above composite insulation materials for construction was prepared as a sample of 100 × 100 × 50 mm, and the surface in contact with the opposite side of the concrete pouring surface or wet mortar adhesive surface was measured three times under the same conditions and in the same manner. The average value for was measured as the total heat release.

<Dimensional stability>

In accordance with KS M ISO 4898, the length and width of the composite insulation for construction were cut to a size of 100 mm, respectively, and the thickness direction was set as the product thickness and left at 70° C. for 24 hours, and then the length and width dimensional change rates were measured.

The dimensional stability was evaluated through the dimensional change rate, and the dimensional stability increases as the dimensional change rate decreases.

<Moisture absorption rate>

Water absorption was measured according to KS M ISO 2896. Specifically, each of the composite insulation materials for construction is 150 × 150 mm, and the thickness is prepared as a product thickness, and after drying each sample at 25 for 24 hours, the initial dimension (V ₀ ) of the sample and the initial weight of the sample ( m ₁ ) was measured, and then, the sample was immersed in water at room temperature, left for 96 hours in a room temperature chamber, and then the dimension (V ₁ ) of the sample absorbing the water was measured and the weight of the net in water (m) ₂ ) and the final weight (m ₃ ) of the sample including the net was measured to measure the water absorption rate.

(ρ: density of water, m ₁ : initial weight of sample, m ₂ : weight of mesh, m ₃ : final weight of sample including mesh, V ₀ : initial dimension of sample, V ₁ : dimension of sample absorbing water , V _c : correction value of moisture content in the air bubbles at the cut surface)

(d ₁ : thickness of the sample after settlement, l ₁ : length of the sample after settlement, b ₁ : width of the sample after settlement)

(l: the length of the sample, b: the width of the sample, d: the thickness of the sample, D: the average diameter of the bubble)

The durability of the composite insulation for construction was evaluated through the water absorption rate, and the durability increases as the water penetration rate decreases.

Surface material - insulation material
Adhesive strength (gf/25mm) Surface material - concrete wall or wet mortar
Adhesive strength
(N/cm ² ) Heat Release (MJ) dimensional change rate
(%) water absorption rate
(%) Example 1
171 5.8 3.3 0.27 2.5 Example 2 168 5.4 3.0 0.33 2.6 Comparative Example 1
124 1.0 10.2 1.4 1.4 Comparative Example 2
170 6.4 14.3 0.6 3.9 Comparative Example 3
165 4.9 4.1 0.92 2.5 Comparative Example 4
172 6.6 13.9 0.34 3.5 Comparative Example 5
90 2.8 2.8 0.32 2.2 Comparative Example 6
165 3.6 5.7 0.33 2.8 Comparative Example 7
100 5.0 3.7 0.33 2.6 Comparative Example 8
168 5.2 9.0 0.34 2.5 Comparative Example 9
50 5.0 12.8 0.32 2.7 Reference Example 1
158 5.0 3.8 0.58 2.7 Reference Example 2
154 5.1 3.5 0.25 2.4

In the case of the composite thermal insulation material for construction of Example 1-2, the adhesion strength of the surface material of the construction insulation material is excellent for both the thermosetting foam layer and the concrete pouring surface or wet mortar adhesive surface, and the heat emission is very low to realize excellent semi-incombustibility, , dimensional change rate and water absorption rate are small, so it can be confirmed that dimensional stability and water absorption rate are excellent.

On the other hand, in the case of the composite insulation for construction of Comparative Example 1, the uppermost layer of the surface material of the insulation for construction was composed of an aluminum foil layer, so the adhesion strength with the concrete pouring surface or wet mortar adhesive surface was lowered, and the lower layer was composed of kraft paper, Adhesive strength was lowered. In addition, in the case of the composite insulation material for construction of Comparative Example 1, the surface material of the insulation material for construction did not include a glass scrim layer, so the dimensional change rate was large compared to the Examples, and dimensional stability was lowered. In addition, the quasi-incombustibility was lowered due to the inclusion of kraft paper.

In addition, in the case of the composite insulation material for construction of Comparative Example 2, the surface material of the insulation material for construction did not include an aluminum foil layer and a high basis weight glass paper layer was used as the surface material of the insulation material for construction. In addition, in the case of the composite insulating material for construction of Comparative Example 2, since the glass scrim layer was not included, the dimensional change rate and moisture absorption rate were greater than those of Examples, and thus dimensional stability and durability were deteriorated.

In addition, in the case of the composite insulation material for construction of Comparative Example 3, the surface material of the insulation material for construction did not include a glass scrim layer, so the dimensional change rate was large compared to the Examples, and dimensional stability was lowered.

In addition, in the case of the composite insulating material for construction of Comparative Example 4, the surface material of the building insulating material was semi-incombustible compared to the examples due to the content of the organic binder increased by using the first and second glass paper layers ^{having a basis weight of 70 g/m 2} and durability was reduced.

In addition, in the case of the composite insulation material for construction of Comparative Example 5, the surface material of the insulation material for construction was first and second glass paper layers ^{having a basis weight of 10 g/m 2} The adhesion strength with the adhesive surface decreased.

In addition, in the case of the composite insulation for construction of Comparative Example 6, the uppermost layer of the surface material of the insulation for construction is composed of a glass scrim layer, so the adhesion strength with the concrete pouring surface or wet mortar adhesive surface is reduced, and the lamination position of the aluminum layer is similar to that of Examples Differently, the quasi-incombustibility was lowered compared to the Examples.

In addition, in the case of the composite insulating material for construction of Comparative Example 7, the second glass paper layer was laminated on the glass scrim layer, so that the adhesion strength between the surface material of the construction insulating material and the thermosetting foam layer was lowered.

In addition, in the case of the composite insulating material for construction of Comparative Example 8, the glass scrim layer was laminated on the aluminum foil layer, so that the semi-incombustibility of the composite insulating material for construction was lowered.

In addition, in the case of the composite insulating material for construction of Comparative Example 9, the aluminum foil layer was laminated on the thermosetting foam layer, so that the adhesion strength between the surface material of the construction insulating material and the thermosetting foam layer was decreased. In addition, since the glass scrim layer and the second glass paper layer were sequentially stacked on the aluminum foil layer, the semi-incombustibility was reduced.

On the other hand, in the case of the composite insulation material for construction of Reference Example 1, the surface material of the insulation material for construction included a glass scrim layer in which one warp and one weft were orthogonal to each other within a predetermined size of 1 inch × 1 inch, and dimensional stability was somewhat lowered than in Examples. .

In addition, in the case of the composite insulation material for construction of Reference Example 2, the surface material of the insulation material for construction includes a glass scrim layer in which 12 warps and 12 wefts are orthogonal within a predetermined size of 1 inch × 1 inch. has risen.

10: surface material of insulating material for construction 11: first glass paper layer
12: hydrophobic plastic film layer 13: aluminum foil layer
14: glass scrim layer 15: second glass paper layer
20: thermosetting foam layer 30: third glass paper layer
100: composite insulation for construction
200: Concrete pouring surface or wet mortar adhesive surface

Claims (15)

A first glass paper layer, a hydrophobic plastic film layer, an aluminum foil layer, a glass scrim layer, a hydrophobic plastic film layer, and a second glass paper layer are sequentially stacked from the top to the bottom, and the first glass paper layer and the second glass paper layer are sequentially stacked. The layer is a surface material for building insulation with a basis weight of 20-50 g/m ^{2 .} The method of claim 1,
The first glass paper layer and the second glass paper layer have a thickness of 100-300 μm. The method of claim 1,
The aluminum foil layer is a surface material of a building insulation material having a thickness of 6-30㎛. The method of claim 1,
The glass scrim layer is a surface material for a building insulation comprising a glass fiber yarn having a diameter of 8-25㎛. 5. The method of claim 4,
The glass scrim layer is a surface material of a building insulation material that is orthogonal to 2-11 warps and 2-11 wefts within a predetermined size of 1 inch × 1 inch. 5. The method of claim 4,
The glass scrim layer is a surface material of a building insulation material having a thickness of 0.1-3 mm. delete The method of claim 1,
The hydrophobic plastic film layer may include any one or more of polyethylene, polypropylene, and polyester, or a thermoplastic plastic film that may include any one or more of polycarbonate, polyamide, polyvinyl chloride, and nylon. A surface material for a building insulation comprising a fluorine coating film coated with a coating solution. The method of claim 1,
The hydrophobic plastic film layer has a thickness of 30-200 μm. [Claim 10] A composite insulation material for construction in which a thermosetting foam layer is laminated under the surface material of any one of claims 1 to 6, 8 or 9. 11. The method of claim 10,
The thermosetting foam layer is a composite insulation for construction comprising any one or a plurality of polyurethane foam, polyisocyanurate foam, and phenol foam foam. 11. The method of claim 10,
The thermosetting foam layer has a density of 30-50 kg/m ³ and a thickness of 20-200 mm for building composite insulation. 11. The method of claim 10,
The adhesive strength of the surface material of the building insulation to the thermosetting foam layer is 140-200gf/25mm, and the adhesive strength to the concrete pouring surface or the wet mortar adhesive surface 200 is 3.0-20N/cm ² Construction composite insulation material. 12. The method of claim 11,
A composite insulation for construction in which a third glass paper layer is further laminated under the thermosetting foam layer. 15. The method of claim 14,
The third glass paper layer has a thickness of 100-300 μm, and a basis weight of 75-105 g/m ² .

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