KR20160031095A - Skin material of insulating material for building and insulating material for building - Google Patents

Abstract

Provided are: a surface material of an insulating material for construction, comprising a hydrophobic plastic film layer, and a glass fiber layer laminated on both sides of the hydrophobic plastic film layer; and an insulating material for construction comprising the same. Provided in an embodiment of the present invention is a surface material of an insulating material for construction, having excellent adhesive properties, and excellent durability for a long period of time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a surface-

A surface material of a building insulation material, and a building insulation material.

By adhering the insulation to the wall of the building, it is possible to prevent the heat from moving, so that the influence of the external temperature change on the internal temperature of the building can be reduced and the room temperature can be maintained with less energy. Among these thermal insulating materials, there is a problem that structural members such as a surface material of a heat insulating material and a wall made of a concrete or a mortar material do not adhere to each other and a gap is widened in the thermal insulating material used for attaching to a wall made of concrete or mortar.

Accordingly, when a face material made of glass fiber is used as a surface material in order to adhere properly to a wall made of concrete or mortar, the water absorption rate is high, so that moisture is absorbed significantly over time and adhesion strength is lowered, So that moisture can permeate more easily. In addition, a hydrophilic binder is used to adhere to the wall, and the hydrophilic binder can further increase the degree to which the surface material of the building insulation absorbs moisture.

If the moisture permeates in this way, the adhesion strength is further lowered, and the thermosetting foam may be easily deformed, detached, and condensed so that the durability and the heat insulating property are further reduced over time.

In one embodiment of the present invention, there is provided a surface material of a thermal insulating material for building which realizes excellent adhesion, low moisture absorption rate and excellent durability for a long time.

In another embodiment of the present invention, there is provided a thermal insulating material for building comprising the surface material of the thermal insulating material for building.

In one embodiment of the invention, a hydrophobic plastic film layer; And a glass fiber layer laminated on both sides of the hydrophobic plastic film layer.

The water contact angle of the hydrophobic plastic film layer may be between about 70 ° and about 150 °.

The hydrophobic plastic film layer may include at least one selected from the group consisting of polyethylene, polypropylene, polyester, and combinations thereof, or may include a fluorine coating film.

The thickness of the hydrophobic plastic film layer may be about 30 탆 to about 200 탆.

The mass per unit area of the glass fiber layer may be from about 40 g / m ² to about 90 g / m ² .

The thickness of the glass fiber layer may be about 100 탆 to about 300 탆.

The surface material of the building heat insulating material may further include an aluminum layer.

The thickness of the aluminum layer may be between about 6 microns and about 30 microns.

In another embodiment of the present invention, there is provided a building insulation material comprising a surface material of the building insulation and a thermosetting foam.

The water absorption rate according to the condition of KS M ISO 2896 of the thermal insulation material may be about 4% or less.

The adhesion strength of the surface material of the building insulation to the thermosetting foam can be from about 100 grams to about 250 grams.

The building insulation is adapted to be attached to a wall comprising concrete, mortar or both, and the adhesion strength of the surface material of the building insulation to the wall can be from about 10 kPa to about 70 kPa.

The thermosetting foam may be a polyurethane foam, a polyisocyanurate foam, or a phenol foam foam.

The surface material of the heat insulating material for building can achieve excellent adhesion, low moisture absorption rate and excellent durability for a long time.

1 is a schematic cross-sectional view of a surface material of a heat insulating material according to an embodiment of the present invention.
2 is a schematic cross-sectional view of a heat insulating material according to another embodiment of the present invention.
3 is a schematic cross-sectional view of a wall to which the building insulation is attached.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In the drawings, the thickness is enlarged to clearly represent the layers and regions. In the drawings, for the convenience of explanation, the thicknesses of some layers and regions are exaggerated.

Hereinafter, the formation of any structure in the "upper (or lower)" or the "upper (or lower)" of the substrate means that any structure is formed in contact with the upper surface (or lower surface) of the substrate However, the present invention is not limited to not including other configurations between the substrate and any structure formed on (or under) the substrate.

In one embodiment of the invention, a hydrophobic plastic film layer; And a glass fiber layer laminated on both sides of the hydrophobic plastic film layer.

Generally, the surface material of the heat insulating material for construction is formed of a single layer of glass fiber layers or a multilayer including all of them. Such glass fibers and nonwoven fabric have excellent initial adhesion strength, but the water absorption rate is high due to the hydrophilic binder necessarily contained in the manufacturing process, and the moisture is significantly absorbed during the use of the heat insulating material, There is a problem that the thermosetting foam easily deforms, falls off and condensation phenomenon easily occurs to deteriorate heat insulation and durability.

Accordingly, in the surface material of the heat insulating material for building according to an embodiment of the present invention, the hydrophobic plastic film layer is included between the glass fiber layers to significantly decrease the water absorption rate of the surface material itself of the thermal insulating material for building, It is possible to effectively reduce the degree of water absorption during use and thereby to maintain the adhesion strength to the building wall and the thermosetting foam for a long time and to prevent the deformation, dropout and condensation of the thermosetting foam, There is an advantage that excellent durability can be realized.

Fig. 1 schematically shows a cross-section of the surface agent 100 of the thermal insulating material for building.

The surface agent (100) of the building thermal insulation material comprises a hydrophobic plastic film layer (120); And a glass fiber layer 110 laminated on both sides of the hydrophobic plastic film layer 120.

The water contact angle of the hydrophobic plastic film layer 120 may be about 70 ° to about 150 °. By sufficiently reducing the water absorption rate of the surface agent (100) of the building insulation by having a high water contact angle within the above range, the adhesive strength can be maintained at a good level for a long time during use and at the same time, the thermosetting foam (230) The condensation phenomenon can be prevented, so that excellent heat insulation and excellent durability can be realized for a long period of time.

The hydrophobic plastic film layer 120 may include at least one selected from the group consisting of polyethylene, polypropylene, polyester, and combinations thereof, or may include a fluorine coating film.

The water contact angle of the hydrophobic plastic film layer 120 can be realized at a high level of about 70 ° to about 150 ° so that the water absorption rate of the heat insulating material for building including the surface agent 100 of the heat insulating material The adhesive strength and the performance of the thermosetting foam 230 can be maintained uniformly for a long period of time, so that excellent heat insulation and excellent durability can be realized for a long period of time.

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

The thermoplastic plastic film may include, but is not limited to, at least one selected from the group including, for example, polycarbonate, polyamide, polyvinyl chloride, nylon, and combinations thereof.

The hydrophobic plastic film layer 120 may have a thickness of about 30 탆 to about 200 탆. By having the thickness within the above range, the water absorption rate can be realized to a sufficiently low level without excessively increasing the thickness of the surface agent 100 of the building heat insulating material.

The glass fiber layer 110 may be laminated on both sides of the hydrophobic plastic layer so that in the course of attaching the surface agent 100 of the thermal insulation material to a building wall containing cement, mortar, etc., Or the like may penetrate into the glass fiber layer 110 and may be fixed to each other while hydration reaction or the like is performed to firmly attach the glass fiber layer 110 and the building wall. That is, when the glass fiber layer 110 is not included, the hydrophilic binder such as cement, mortar or the like can not penetrate into the hydrophobic plastic layer, resulting in a problem that adhesion is significantly reduced.

The glass fiber layer 110 may be a sheet or a mat sheet made of glass fiber, and the glass fiber layer 110 may have a thickness of about 100 탆 to about 300 탆. By having the thickness within the above range, the adhesion strength can be realized to a sufficiently high level without excessively increasing the thickness of the heat insulating material for construction, and the dimensional stability can be realized at a sufficiently high level, thereby reducing deformation such as shrinkage and expansion due to heat.

In addition, the glass fiber layer 110 may have a mass per unit area of about 40 g / m ² to about 90 g / m ² . By having a mass per unit area within the above range, sufficient dimensional stability can be realized, deformation due to heat can be maintained at a lower level, and excellent adhesion with the thermosetting foam 230 can be realized. Less than about 40 g / m < ² >, the dimensions are unstable, and in the case of greater than 90 g / m < ² >, the adhesion to the thermosettable foam 230 may be lowered.

In addition, the surface material of the thermal insulation material for building further includes an aluminum layer to realize excellent flame retardancy and moisture resistance, and also acts as a barrier layer against foaming gas generated in the thermosetting foamed material, thereby realizing excellent heat insulation for a long period of time.

The aluminum layer may include, but is not limited to, an aluminum foil.

As described above, the flame retardancy including the aluminum layer can be realized, and at the same time, the barrier layer against the foaming gas of the thermosetting foam and moisture resistance can be realized at a high level for a long time.

As shown in FIG. 2 and FIG. 3, when the heat insulating material for construction including the surface material of the thermal insulation material is applied to the building wall, the aluminum is not attached to both the thermosetting foam and the building wall, As shown in FIG.

The thickness of the aluminum layer may be between about 6 microns and about 30 microns. By having the thickness in the above range, a high level of flame retardancy and resistance to moisture can be realized at the same time without excessively increasing the thickness of the surface agent 100 of the heat insulating material for building, so that the surface agent 100 of the heat insulating material for construction The thermal insulation of buildings can slow down the burning speed in the event of a fire to improve stability and effectively suppress deformation such as shrinkage, swelling and distortion due to moisture.

In another embodiment of the present invention, there is provided a building insulation comprising the surface agent (100) and the thermosetting foam (230) of the building insulation. The surface agent 100 of the building insulation is as described above in one embodiment. 2 schematically shows a cross section of the heat insulating material 200 for building.

The thermal insulation material 200 for building may include a hydrophobic plastic film layer 120 between the glass fiber layers 110 of the surface agent 100 to significantly decrease the water absorption rate of the surface agent 100 itself, The adhesion process using the binder and the degree of absorption of moisture during use can be effectively reduced so that the adhesion strength to the building wall and thermosetting foam 230 can be maintained at a good level for a long time while the adhesion of the thermosetting foam 230 It is possible to prevent deformation, dropout and dew condensation phenomenon, thereby providing long-term excellent heat insulation and excellent durability.

For example, the thermal insulation material 200 may include a structure in which the surface material 100 of the thermal insulation material is laminated on one side or both sides of the thermosetting foam 230.

When the surface material 100 of the building insulation is laminated on both sides of the thermosetting foam 230, the surface material 100 of one of the two insulation materials for construction is bonded to the thermosetting foam 230 of the glass fiber layer 110 And further includes an aluminum layer 240 on the upper surface to realize excellent flame retardancy, excellent moisture resistance, and excellent durability.

3, when one of the surface materials 100 of the building thermal insulation material further includes the aluminum layer 240 because the aluminum layer 240 has a small adhesive strength to the building wall, the aluminum layer 240 ) Can be applied to the building wall.

The bond strength to the thermoset foam 230 can be from about 100 grams to about 250 grams. By having the adhesive strength within the above range, the thermosetting foam 230 is firmly adhered to the thermosetting foam 230 to prevent a gap between the thermosetting foam 230 and the thermosetting foam 230 from being deteriorated. As a result, the thermosetting foam 230 is prevented from being deformed, So that the heat insulating property and the durability can be realized at a superior level for a long time.

The building insulation 200 may have a water absorption rate according to the conditions of KS M ISO 2896 of, for example, about 4% or less, specifically about 1% to about 3%. By having a low level of water absorption rate within the above range, it is possible to maintain the adhesion strength of the building heat insulating material 200 to both the building wall and the thermosetting foam 230 at a high level for a long time, thereby preventing occurrence of a gap, It is possible to realize excellent heat insulation and durability for a long period of time.

The building insulation 200 is adapted to be adhered to a wall comprising concrete, mortar or both, and the adhesion strength to the wall may be from about 10 kPa to about 70 kPa. By having a high level of adhesive strength within the above range, the building heat insulating material 200 is firmly attached to the wall to prevent the generation of a gap therebetween, so that the moisture permeability is lowered. Therefore, So that a pleasant indoor environment can be maintained for a long period of time.

3 schematically shows a cross-section of the wall body 300 to which the building heat insulating material 200 is attached. The building insulation 200 is as described above in other embodiments.

The thermoset foam 230 can be, but is not limited to, a polyurethane foam, a polyisocyanurate foam, or a phenol foam foam.

Each of the above-mentioned layers may be bonded using a known bonding method belonging to the technical field, and may be bonded using, for example, a laminating bonding method, an adhesive bonding method or the like, and is not particularly limited.

Hereinafter, specific embodiments of the present invention will be described. However, the embodiments described below are only intended to illustrate or explain the present invention, and the present invention should not be limited thereto.

Example

Example  One

And ^two glass fiber mats each having a mass per unit area of 70 g / m ² were prepared, and a polyethylene film having a thickness of 100 μm and a water contact angle of 94 ° was prepared.

The glass fiber mat, the polyethylene film, and the glass fiber mat were sequentially laminated to prepare a three-layer structure thermal insulation material for construction.

Example 2 (further comprising an aluminum thin film)

A surface material of a four-layered construction heat insulating material was prepared by further laminating an aluminum thin film of 25 mu m thickness on the upper surface of one surface of the surface material of the heat insulating material for construction of Example 1. [

Comparative Example 1 (single layer of glass fiber mat)

A surface material of a thermal insulating material for construction was prepared by a single layer of a glass fiber mat having a thickness of 200 mu m and a mass per unit area of 70 g / m < ^{2 &} gt ;.

Comparative Example 2 (Structure of glass fiber mat / hydrophobic plastic film)

A glass fiber mat having a thickness of 200 mu m and a mass per unit area of 70 g / m < ² > and a polyethylene film having a thickness of 100 mu m and a water contact angle of 94 DEG were laminated to prepare a two-

Comparative Example 3 (Structure of glass fiber mat / hydrophilic plastic film / glass fiber mat)

^Two glass fiber mats each having a thickness of 200 mu m and a mass per unit area of 70 g / m < ² > were prepared, and one siloxane film having a thickness of 100 mu m and a water contact angle of 27 DEG was prepared.

The glass fiber mat, the siloxane-based film, and the glass fiber mat were sequentially laminated to produce a three-layer structure thermal insulation material for construction.

Experimental Example

The heat insulating material for building was manufactured by attaching the surface materials of the heat insulating materials for building of Examples 1 and 2 and Comparative Examples 1 to 3 to a polyurethane foam. Properties of the heat insulating materials for building were evaluated as described below and shown in Table 1.

Specifically, in the case of Example 2, a glass fiber mat was attached to the polyurethane foam, and two surface materials of the heat insulating material for building according to Comparative Example 2 were manufactured. One of them was a glass fiber mat, And the other to allow the polyethylene film to adhere to the polyurethane foam.

(Bond strength)

Measuring method: Each of the above-mentioned insulating materials for construction was prepared as a sample of 200 x 200 x 70 mm and measured using an adhesion strength tester UTM (Instron, UTM). The adhesion strength was measured for each of the polyurethane foam and the concrete wall.

Specifically, the adhesion strength to the foam was measured by cutting the surface material of each adhered building thermal insulation material to a width of 25 mm and then peeling the foam material from the foam at a speed of 300 mm / min at a speed of 300 mm / min using UTM equipment The strength was measured.

Also, the adhesive strength to the wall was formed by forming concrete with a weight of 1.2 kg and a height of 200 mm while the bonding area was 2865.5 mm ² at the top of the surface material of the heat insulating material for building, and curing was carried out under constant temperature and humidity conditions for about 70 hours. The surface material of the insulation was attached to the building wall, and then the adhesion strength was measured.

(Water absorption rate)

Measurement method: Water absorption rate was measured according to KS M ISO 2896.

Specifically, each of the thermal insulating materials for building was prepared as a sample of 150 X 150 x 70 mm, and each sample was dried at 25 ° C for 24 hours, and the initial dimensions and the initial weight of the sample were measured. Then, Immersed in water, allowed to stand in a room temperature chamber for 96 hours, and then taken out of the sample to measure the moisture absorption rate by measuring the late dimension and the late weight of the moisture-absorbed sample.

Bond strength to polyurethane foam
(g) Water Absorption Rate (%) For concrete walls
Bond strength
(KPa) Example 1 203 2.8 67 Example 2 204 1.7 65 Comparative Example 1 201 4.1 62 Comparative Example 2 203 2.3 16 Comparative Example 3 198 5.4 57

The surface materials of the heat insulating materials according to Examples 1 and 2 are excellent in adhesion strength to the polyurethane foam and the concrete wall, and have a remarkably low water absorption rate, so that it is possible to realize excellent adhesion, low moisture absorption rate and excellent durability for a long time can do.

On the other hand, the surface material of the insulating material for building according to Comparative Example 1 is expected to be inferior in durability due to the remarkably high water absorption rate, and the surface material of the insulating material for building according to Comparative Example 2 is remarkably low in adhesion strength to concrete wall, And that the surface material of the thermal insulation material according to the comparative example 3 is remarkably inferior in durability because the adhesion strength to the foam is remarkably low and the water absorption rate is remarkably high.

100: Surface material of building insulation
110: glass fiber layer
120: hydrophobic plastic film layer
200: Building insulation
230: thermosetting foam
240: Aluminum layer
300: Wall with insulation for construction

Claims (13)

A hydrophobic plastic film layer; And a glass fiber layer laminated on both sides of the hydrophobic plastic film layer.
The method according to claim 1,
Wherein the hydrophobic plastic film layer has a water contact angle of 70 to 150
Surfaces of building insulation.
The method according to claim 1,
Wherein the hydrophobic plastic film layer comprises at least one selected from the group consisting of polyethylene, polypropylene, polyester and combinations thereof, or comprises a fluorine-containing film
Surfaces of building insulation.
The method according to claim 1,
Wherein the hydrophobic plastic film layer has a thickness of 30 mu m to 200 mu m
Surfaces of building insulation.
The method of claim 1, wherein
Wherein the glass fiber layer has a mass per unit area of 40 g / m ² to 90 g / m ²
Surfaces of building insulation.
The method according to claim 1,
Wherein the thickness of the glass fiber layer is 100 mu m to 300 mu m
Surfaces of building insulation.
The method according to claim 1,
Further comprising an aluminum layer
Surfaces of building insulation.
8. The method of claim 7,
Wherein the thickness of the aluminum layer is from 6 mu m to 30 mu m
Surfaces of building insulation.
9. A building material comprising a surface material and a thermosetting foam of a building insulation according to any one of claims 1 to 8
Insulation for construction.
10. The method of claim 9,
Water absorption rate according to KS M ISO 2896 condition is less than 4%
Insulation for construction.
10. The method of claim 9,
Wherein the adhesion strength of the surface material of the thermal insulation material to the thermosetting foam is from 100 g to 250 g
Insulation for construction.
10. The method of claim 9,
Wherein said building insulation is adapted to be attached to a wall comprising concrete, mortar or both,
Wherein an adhesion strength of the surface material of the thermal insulation material to the wall is 10 kPa to 70 kPa
Insulation for construction.
10. The method of claim 9,
Wherein the thermosetting foam is a polyurethane foam, a polyisocyanurate foam, or a phenol foam foam
Insulation for construction.

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