KR20090112288A - Interior Insulated Composite Wall Panel and Method for Manufacturing the Same - Google Patents

Abstract

PURPOSE: An inside complex insulated wall and a manufacturing method thereof are provided to improve the property and make construction easy. CONSTITUTION: A thermal-insulation layer(12) of hard polyurethane foam material is formed between a surface layer(11') and a finishing layer(11). A finish material is made of a gypsum board, cellulose reinforced cement board, a magnesium board, polyester non-woven fabric, pulp, an inorganic material board, woven cloth, and glass fiber. The thickness of the finishing layer is 0.2~10mm. The thickness of surface layer is 0.2~5mm. The thickness of the thermal-insulation layer is 30~80mm.

Description

Interior Insulated Composite Wall Panel and Method for Manufacturing the Same

The present invention relates to an internal composite insulating wall. More specifically, the present invention relates to an integrated internal composite insulating wall having a thermal insulation layer of polyurethane foam formed between two surface finishes or one surface finish and one surface finish and a method for manufacturing the same without using adhesive or adhesive mortar. will be.

In general, the inner insulation wall is attached to the inner wall of the building to give functions such as heat insulation, moisture proof, soundproofing. In particular, most of the energy loss of buildings is due to heat loss through walls, and various heat insulators, construction methods, etc. have been developed to solve this problem.

Regarding the heat insulating material, glass fiber and styrofoam and the like are known as the most typical types in the past. Glass fiber, as a non-combustible insulation, can effectively suppress the spread of flame in the event of a fire, but it does not have a uniform appearance itself, and it is difficult to expect mechanical properties such as a certain level of compression resistance. It is also disadvantageous in terms of handleability. Compared to glass fiber, an insulation material made of extruded polystyrene (EPS), called styrofoam, is used as a material for the internal insulation wall. EPS means a plate-shaped heat insulating material added to a styrene resin, a flame retardant, a foaming agent and the like, mixed in the extruder and foamed. Such EPS is known to have good thermal insulation and relatively high moisture permeability because it is extruded using heterogeneous foaming gas as a plastic molding.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the general construction method of the internal heat insulation wall which used EPS as a heat insulation material layer.

In this figure, one side of the insulation layer 2 is attached to the concrete wall or slab 4 by applying an adhesive or adhesive mortar 3, while the other side of the insulation layer 2 is adhesive or adhesive mortar 3. By attaching the gypsum board 1 using the texture of the interior wall. That is, the adhesive or adhesive mortar, EPS, adhesive mortar, gypsum board is constructed sequentially based on the concrete wall. In particular, EPS uses EPS90T and gypsum board 9.5T. However, this approach has the following disadvantages.

(1) In terms of workability, not only the labor cost is high, but also the construction time is required because a number of construction steps are required.

(2) In terms of thermal insulation, although styrofoam exhibits relatively good thermal insulation properties with a thermal conductivity of about 0.028 to 0.034 kcal / m · h · ° C, the thickness of the styrofoam is in order to satisfy the recent higher level of thermal insulation. Since it must be large, it is limited in terms of securing space in the room.

(3) In terms of flame retardancy, EPS has a heat-vulnerable property, which causes a serious problem in case of fire.

Recently, in order to improve workability and flame retardancy, a technology for constructing EPS in the form of a sandwich panel has also been developed. In this regard, Korean Utility Model Model No. 333081 discloses a panel in which a pair of exterior plate materials are closely adhered to both surfaces of the insulation board by using a polyurethane flame-retardant adhesive layer on both sides of the EPS insulation board. . Since this method is manufactured in a standard panel shape of a certain standard, it is known that the assembly is easy and the workability is improved. However, there is still a fundamental limitation in insulation and flame retardancy, and is not so preferable in terms of productivity due to the volume of EPS in the process of manufacturing the panel form.

  Apart from the above scheme, a technique using polyurethane foam as a heat insulating material layer is also known. Usually, polyurethane means a high molecular compound having a urethane bond -OCONH- in a molecule, and is an addition polymerization reaction (a unit compound having a unit composition formula and structure) such as a polyol (a polymer containing a -OH functional group) and isocyanates. Reaction without causing molecules to escape from the monomer composition). Polyurethane is produced in various forms according to the raw material composition and production method, and the polyurethane foam is extruded together with the crosslinking reaction (crossing reaction) and has a foamed porous characteristic due to carbon dioxide generated during the reaction. . In particular, the polyurethane foam is a polyporous or sponge-type polyurethane resin, a polyester-based polyol which is a high molecular compound having an ester bond (-CO-O-) in its molecule, and difunctional or polyfunctional isocyanates such as a blowing agent or a catalyst. In the presence of the mixture, the glycol component and the isocyanate component react with water to form a net structure by bridge bonding, and a foam is produced using a gas (for example, carbon dioxide) generated at this time.

These polyurethane foams are classified into soft, semi-rigid, and hard, etc. Of these, the rigid polyurethane foam is light and low in elasticity, and has excellent load-bearing ability, heat insulation, and low temperature characteristics, so that the building insulation or plant insulation such as LNG, LPG tank, etc. It is widely used as.

The prior art using the above-mentioned polyurethane foam as a heat insulating layer is as follows:

Korean Utility Model Registration No. 254653 discloses a plate-shaped heat insulating plate which is diagonally formed by forming a rhombic protrusion projecting at a height of about 5 mm on the both sides of a plate made of polyurethane foam and indented recesses at equal intervals. According to the above technique, when the adhesive is first applied to the building wall during the construction, and filled into the adhesive surface of the heat insulating plate material, the contact surface mortar is filled into the recess bone to adhere the adhesive surface closely. The technique can be seen as a technique for improving the adhesion between the polyurethane foam and the building wall, but adopting a method of applying an adhesive mortar to the insulating plate to the insulating plate, there is still a problem in terms of workability.

As a method for solving the construction problems, Korean Utility Model No. 351299 applies a reinforcing mesh when forming non-combustible materials such as vermiculite plaster, white cement, etc. to a predetermined thickness on both sides of a polyurethane foam insulation. By inserting into the inside to cure it discloses a technology for manufacturing in the form of an integrated panel. The technology has a technical significance in that the construction for improving the workability by omitting the attachment step using an adhesive or an adhesive mortar as a method for manufacturing the internal insulation wall in one piece. However, continuous production is not possible because it involves the step of applying the reinforcing mesh during the manufacturing process, there is still a problem in terms of productivity by using a certain volume of polyurethane foam insulation from the initial stage of production.

As described above, in the case of the conventionally known technology, there may still be unsatisfactory results in terms of workability, overall physical properties, productivity, and the like, which are required for internal insulation walls, and an improvement method for this is urgently required.

In order to solve the above-mentioned problems of the prior art, the inventors of the present invention have found that, as a result, an integral internal composite insulation wall in which a layer of polyurethane foam is formed between two surface finishes or one surface finish and one surface finish is formed. And to develop a method for manufacturing without interposing the adhesive or adhesive mortar between the layers of the inner composite insulating wall. In particular, the manufacturing method can be configured in a substantially continuous process using a roll or roller conveyor.

Accordingly, it is an object of the present invention to provide an integral internal composite thermal insulation wall which is excellent in workability, various physical properties and productivity, using a polyurethane foam insulation layer.

It is another object of the present invention to provide a method for producing the integral internal composite insulating wall without the use of adhesives or adhesive mortars.

According to one aspect of the invention,

Between two surface finish layers, or one surface finish layer and one surface finish layer, an insulating layer of rigid polyurethane foam material is formed integrally without intervening adhesive,

The surface finish is selected from the group consisting of gypsum board, CRC board, magnesium board, polyester nonwoven, pulp, inorganic board, woven fabric, paper and glass fiber-containing paper, and

The surface material is provided with an internal composite insulating wall, characterized in that the paper or non-woven fabric.

According to another aspect of the invention,

a) conveying the surface finish or lower layer, which is a surface material, to a double slat conveyor;

b) feeding the reaction raw material of rigid polyurethane foam onto the bottom layer before the bottom layer reaches the double slat conveyor;

c) transferring an upper layer, which is a surface finish or surface material, in the double slat conveyor at regular intervals up and down with the lower layer supplied with the reaction raw material; And

d) converting the reaction raw material into rigid polyurethane foam through foaming and resination reaction while the upper and lower layers pass through a double slat conveyor, wherein the rigid polyurethane foam is interposed between the upper and lower layers. Forming and hardening to form an integrated laminate by self-adhesion;

Including;

At least one of the top and bottom layers is a surface finish, wherein the surface finish is from a group consisting of gypsum board, CRC board, magnesium board, polyester nonwoven, pulp, inorganic board, woven fabric, paper and glass fiber-containing paper The material of the surface layer is selected, wherein the material is a paper or a non-woven fabric.

The internal composite insulation wall according to the present invention is easy to construct and has various physical properties because both surfaces of the insulation layer made of a rigid polyurethane foam material having excellent insulation properties are integrally formed with the surface finish layer or the surface layer. Have In addition, the manufacturing method of the internal composite insulating wall according to the present invention is a magnetic phenomenon generated in the process of converting the reaction raw material between the surface finishing material layer and / or the surface material layer moving at a predetermined interval to convert to a polyurethane foam insulation layer It is advantageous in terms of productivity because it produces an integrated laminate having no adhesive interposed between the layers by using adhesiveness.

Hereinafter, the present invention can be achieved by the following description with reference to the accompanying drawings. The following description describes preferred embodiments of the present invention, and the present invention is not necessarily limited to the specific embodiments.

2 is a perspective view schematically showing a laminated structure of an integrated internal composite insulating wall according to one embodiment of the present invention.

The integrated internal composite insulation wall has a surface finish layer 11 formed on both sides of the insulation layer 12, or a surface finish layer 11 on one side, and a surface layer 11 'on the other side. It has a basic structure of layers. At this time, each layer is laminated without intervening adhesive or adhesive mortar.

The insulation layer 12 of the internal composite insulation wall is a rigid polyurethane foam, the density of which is higher than the free-rise density of the foamed polyurethane foam without the use of a mold. In particular, it would be desirable to use polyurethane foams with added flame retardants (eg, TCPP, TCEP, Phosphorus ester, etc.) in the manufacturing process in order to minimize the spread of the flame in the event of fire. In addition, in order to improve the flame retardancy of the rigid polyurethane foam itself, when the insulating wall is composed of isocyanurate foam which forms a nurate bond through trimerization of isocyanate, the crosslinking density is high due to the nurate bond. As a result, a finer cell structure can be used, and thus high heat insulating performance can be exhibited.

In addition, in the interior construction of the building it is desirable to form the surface finish layer 11 in the interior direction, the surface attached to the inner wall of the building via the adhesive or adhesive mortar may be composed of the surface material layer (11 '). As can be seen, depending on the material may optionally be composed of a surface finish layer (11).

As the material of the surface finish layer, the gypsum board, polyester non-woven fabric, pulp, inorganic board, woven cloth so that the bending or surface curvature is suppressed as much as possible without the elasticity of the inner wall of the inner wall as much as possible to facilitate the spreading, etc. It is preferred to use selected from the group consisting of woven fabric, paper, and glass fiber-containing paper. Depending on the required properties, it is also possible to construct the surface finish layer in a single layer of the above-mentioned material, as well as in a multi-layer structure of the same or different material. In particular, it is desirable to use a flame retardant material as the surface finish layer.

The material of the surface material layer is preferably used as a paper or a non-woven fabric in consideration of adhesion to the inner wall of the building, economical efficiency.

In addition, when forming the surface finish layer on both sides of the heat insulating material layer, it may be formed by changing the material of each surface finish.

Preferred physical properties of the internal insulating wall according to the invention are shown in Table 1 below.

TABLE 1

Properties unit Property value Test method Density Kg / ㎥ 25-60 KS M 3809 Compression Strength kgf / ㎠ 0.8 or more KS M 3809 Bending strength kgf / ㎠ 1.5 or more KS M 3809 Thermal Conductivity ㎉ / m · h · ℃ 0.020 or less (typically 0.016 to 0.020) KS M 3809 Water Absorption g / 100 ㎠ 3.0 or less KS M 3809

In particular, in the case of insulation properties, it is desirable to satisfy the standards set forth in Appendix 1, 2, and 3 of the revised rule "Rules for Equipment Standards of Buildings," etc. % Indicates improved thermal insulation performance.

In addition, the dimension and thickness ratio of each layer can be suitably determined in consideration of a use, the area characteristic in which an internal composite heat insulation wall is constructed, the space securing requirement, etc., and is not limited to a specific dimension and thickness ratio. However, the thickness of the surface finish layer is typically in the range of about 0.2 to 10 mm, the surface layer is about 0.2 to 5 mm, and the insulation layer is about 30 to 80 mm.

3 is a view schematically showing a method of constructing an internal composite insulating wall according to the present invention.

As shown in the figure, since the above-described inner composite insulating wall is integrally formed without using adhesive or adhesive mortar between layers, it is necessary to use adhesive or adhesive mortar on the inner wall or outer wall of the building only during construction. Easy to attach In particular, since the use of the adhesive can be significantly reduced, even after construction, the human hazards caused by volatile organic substances such as formaldehyde can be reduced to a considerable level.

4 is a diagram schematically showing one embodiment of a process for producing an interior composite insulating wall according to the present invention.

According to the figure, the raw material for producing a rigid polyurethane foam is composed of a two-part type. That is, the raw material tank 101 of a polyol type compound and the raw material tank 102 of an isocyanate type compound are arrange | positioned separately. In addition, a detergent, for example, methylene chloride (MC), is stored in a separate tank 103. The cleaning agent is intended to remove the urethane reactant remaining in the raw material input line and the mixing head after the end of the operation. The reason for configuring the cleaning agent as a separate cleaning line is to mix the cleaning agent with the polyol compound and / or the isocyanate compound. In this case, since it does not act as a cleaning agent and acts as an auxiliary blowing agent, it is considered that it may cause problems such as delayed curing, post-foaming and shrinkage after curing.

On the other hand, a representative example of the polyol-based compound is a polyether-based polyol having an ether group is repeatedly bonded, such as polypropylene glycol (PPG) and a polyester-based polyol to which an ester group is repeatedly bonded. The said polyol type compound can be used individually or in combination. Preferably, the molecular weight of the polyol-based compound is about 200 to 20,000, the hydroxyl content is about 20 to 500 KOH level.

As the isocyanate compound, diphenylmethane diisocyanate (4,4'-Diphenylmethane diisocyanate; MDI) may be used. MDI is a substance obtained by treating phosgene with diphenylmethanediamine (MDA), which is usually produced by condensation of aniline and formaldehyde, and is purified and separated into Crude MDI. Since monomeric MDI is a white solid at room temperature, it is preferable to use it by modifying it to liquid phase, such as carbodiimide modified MDI or uretonimine modified MDI. In particular, it is preferable to use a polymeric MDI liquid at room temperature, in particular, the molecular weight is about 3,000 to 5,000, the average number of functional groups is about 2 to 3, the viscosity (25 ℃) is about 150 to 300 cps, and NCO% content It is preferably about 20 to 40.

According to a preferred embodiment of the present invention, a urethane catalyst, a blowing agent (and auxiliary blowing agent), a surfactant, other additives (flame retardant, chain transfer agent, etc.) and the like are added to and stored in the polyol compound tank 101.

The urethane catalyst is not particularly limited, and conventional kinds such as secondary or tertiary amine compounds (for example, DMEA, TEDA, DMCHA, TMCHA, etc.), organometallic catalysts, and the like can be used. In particular, two or more catalysts may be used in combination according to the required properties.

The blowing agent is a component that generates bubbles during the resin reaction. Water (chemical reaction agent that generates carbon dioxide by reacting with isocyanate) can be used as the main blowing agent. As the auxiliary blowing agent, the blowing agent does not participate in the resin reaction and is vaporized by the heat of reaction. Components to be formed, for example, chlorofluorocarbons CFC-11, HCFC-141b, C-Pentane, HFCs, etc. may be selectively used, preferably HCFC-141b, C-Pentane, HFCs that are more environmentally friendly Etc. are used.

The foam stabilizer may be appropriately selected in consideration of the cell structure in the rigid polyurethane foam as a surfactant, and specific examples thereof include silicone foam stabilizers (for example, product names L-5420 and L-6900 manufactured by OSI).

In addition, the flame retardant may be used in an appropriate amount in consideration of the required level, and mainly phosphorus-based flame retardants (eg, TCPP, TCEP, Phosphorus ester, etc.) may be used.

In the above embodiment, the raw material in the polyol-based compound tank may be, for example, about 100 parts by weight of the polyol-based compound, about 0.2 to 4 parts by weight of the urethane catalyst, about 10 to 40 parts by weight of the blowing agent (including the auxiliary blowing agent), and about 0.8 of the foam stabilizer. To 2 parts by weight and about 5 to 20 parts by weight of a flame retardant, and in addition, a bifunctional chain transfer agent such as diol or diamine may be further used in an appropriate amount. In addition, each tank 101, 102 is preferably maintained at about 15 to 30 ° C., more preferably at about 20 to 25 ° C.

According to this embodiment, two rolls 105 and 106 are arranged at the front end of the process, from which the upper and lower layers are fed continuously and conveyed at regular intervals up and down within the double slat conveyor. In this case, both the upper layer and the lower layer may be a surface finish material, or may be a surface material and a surface finish material, respectively. Preferably, at least one of the top layer 107 and the bottom layer 108 is a surface finish material.

The double slat conveyor is installed so that the conveyors 109 and 110 are installed up and down as shown, so that the upper layer 107 and the lower layer 108, which are supplied from the two rolls, respectively, are transported at a constant speed and at the same speed. do. At this time, during the process of transferring the lower layer 108 from the roll 106 to the double slat conveyor, the reaction raw material of the rigid polyurethane foam is first discharged onto the lower layer from the raw material stirring ejector 104, and the upper layer 107 is The double slat conveyor is transported at regular intervals from the lower layer transported with the reaction raw materials.

On the other hand, the polyol compound and the isocyanate compound from each of the raw material tanks 101 and 102 are mixed in the raw material stirring ejector 104, preferably using a metering pump (not shown) provided in each tank. The amount is independently supplied to the raw material stirring ejector. At this time, the ratio (weight ratio) of the usage-amount of a polyol type compound and an isocyanate type compound becomes like this. Preferably it is adjusted to about 1: 1-1: 3, More preferably, it is about 1: 1: 1: 1.5. A mixer is provided inside the raw material stirring ejector, so that the reactant components are mixed with each other while passing through a stirrer head rotating at a speed of about 750 to 4000 rpm, more preferably about 1500 to 3500 rpm. do.

Through the above-described process, the reaction raw material mixture of the polyurethane foam is placed between the upper layer 107 and the lower layer 108 which are transferred at regular intervals in the double slat conveyor. The amount of reactant material discharged may be determined in consideration of the volume occupied by the space between the two layers, the surface finishing material layer or the transfer speed of the surface material layer, etc., but once the discharge amount is determined, It would be desirable to supply. In addition, the upper and lower layers 107, 108 supplied from the rolls 105, 106 preferably maintain sufficient tension to prevent wrinkles on the surface during movement.

While the reaction mixture located between the upper and lower layers moving at regular intervals passes through the double slat conveyors 109 and 110, the foaming reaction (carbon dioxide and heat are generated by the reaction of water and isocyanate compounds, By the heat generated, the auxiliary blowing agent evaporates and foams on a continuous line) and swells through a resination reaction and cures while being molded to a constant thickness (ie, the space between two layers) between the top and bottom layers. The total time of the reaction is preferably maintained at about 1 to 3 minutes and the reaction temperature is maintained at about 20 to 120 ° C.

Carbon dioxide and heat are generated by the reaction of the isocyanate compound with water, and the auxiliary blowing agent is vaporized by the generated heat to foam on the continuous line. The foamed polyurethane foam is attached to the surface finish or the surface material by the self-adhesive force generated by curing, so that it does not involve the application of a separate adhesive or adhesive mortar.

As such, the thickness of the insulation layer formed while being transported on the double slat conveyor is determined by the gap between the upper layer and the lower layer (ie, the vertical gap of the double slat conveyor). The laminate of the three-layer structure transferred through the double slat conveyor is cut to the width and length of the desired standard by the cutting machine 111. When the cutting process is finished, it may optionally undergo a aging process, which is banded on a unit-by-unit basis, followed by primary packaging with a UV-protective film made of a metal-containing polymer, followed by lapping. In particular, aging is carried out for about 5 to 10 days, typically about 1 week, in a aging room maintained at about 20 to 40 ° C., preferably to improve strength and prevent deformation of the product.

FIG. 5 is a schematic illustration of another embodiment of a process for producing an interior composite insulating wall in accordance with the present invention. FIG.

According to the figure, in the process shown in Fig. 4, the roll 106 for transferring the lower layer of the two rolls is replaced by the roller conveyor 206, and the lower layer 208 is supplied by the roller conveyor. The polyol compound tank 201, the isocyanate compound tank 202, the detergent tank 203, the raw material stirring ejector 204, the double slat conveyors 209 and 210, and the cutting machine 211 are shown in FIG. Substantially the same as the member. This embodiment is effective when using a material that is difficult to transfer by roll, such as gypsum board, CRC board, magnesium board, etc. as the surface finish layer. At this time, the upper layer 207 supplied by the roll 205 may be a material that can be supplied by the roll or the surface material of the above-described surface finish. As described above, when using the roller conveyor 206, the plate of the surface finish (ie, gypsum board, CRC board, magnesium board, etc.) is supplied to minimize the gap between the plates to supply a single wall in substantially continuous mode It is desirable to be able to manufacture.

As described above, the manufacturing process of the internal composite insulating wall according to the present invention can be produced continuously from the input of raw materials to cutting, not only excellent in terms of product uniformity, but also greatly improve the productivity of the internal composite insulating wall. have.

The present invention can be more clearly understood by the following examples, which are only intended to illustrate the present invention and are not intended to limit the scope of the invention.

Example 1

An internal composite insulating wall was prepared according to the process shown in FIG. 5. In this embodiment, the raw material composition, and process conditions for each tank for the production of polyurethane foam is as follows.

-Raw material composition in the polyol compound tank (maintenance temperature: 22 ℃)

10 parts by weight of polyether polyol (hydroxyl group: 200-500 KOH)

90 parts by weight of polyester polyol (hydroxyl group: 150-300 KOH)

1.1 parts by weight of amine catalyst (DMEA)

0.7 parts by weight of metal catalyst (T-45)

Foaming agent: 1 part by weight of water

Co-foaming agent (HCFD-141b) 30 parts by weight

Foam Detergent (L-6900) 1.8 parts by weight

Flame retardant (TCPP) 12 parts by weight

-Raw material composition in isocyanate compound tank (maintenance temperature: 22 ℃)

MDI (NCO% Content: 31.5, Viscosity (25 ℃) 170 ~ 250 cps) 200 parts by weight

A metering pump was used to feed the raw material stirring ejector while adjusting the weight ratio of polypropylene glycol: MDI to 1: 1.5. The raw material stirring ejector was a mixer of Sungwon ENG (discharge pressure about 2kgf / ㎠) to discharge the reaction raw material mixture at a rate of 8,920g per minute while stirring at about 3500rpm in a mixer provided therein. Using two SUS roller conveyors (diameter: 5 cm), supply the surface finishing material (magnesium board width 1200mm; length 1800mm; thickness 3mm), which is the lower layer, and SUS rolls (diameter: 10 cm) A paper (width: 1200 mm) having a basis weight of 180 g / m 2 as a top layer was supplied. At this time, in the double slat conveyor, the upper and lower layers were respectively transferred at a constant speed of 5 m / min, and the distance between the upper and lower layers was about 60 mm. The temperature between the top and bottom of the double slat conveyor was adjusted to 40 ℃, the total time of the foaming and curing reaction was adjusted to be about 2 minutes. The laminate of three layers obtained as a result of the reaction was cut into a size of 60T 900 × 1800 using a cutting machine (manufactured by Sungwon ENG Co., Ltd.). The cut internal insulation wall was measured for physical properties according to KS M 3809. The results are shown in Table 2 below.

TABLE 2

Properties unit Property value Density kg / ㎥ 28 Compression Strength kgf / ㎠ 1.8 Bending strength kgf / ㎠ 3.2 Thermal Conductivity ㎉ / m · h · ℃ 0.018 Water Absorption g / 100 ㎠ 0.3

As can be seen from the table, the internal heat insulating wall according to the present invention was excellent in thermal insulation properties as well as mechanical properties. In particular, the use of a separate adhesive or adhesive mortar is not required for the formation of an integral laminate structure.

Simple modifications and variations of the present invention can be readily used by those skilled in the art, and all such variations or modifications can be considered to be included within the scope of the present invention.

1 is a view showing a general construction method of the internal composite insulation wall using EPS as the insulation layer,

2 is a perspective view schematically showing a laminated structure of an integrated internal composite insulating wall according to one embodiment of the present invention,

3 is a view schematically showing a method of constructing an internal composite insulating wall according to the present invention,

4 is a diagram schematically illustrating one embodiment of a process for producing an internal composite insulating wall in accordance with the present invention, and

FIG. 5 is a schematic illustration of another embodiment of a process for producing an interior composite insulating wall in accordance with the present invention. FIG.

<Description of Drawing>

1: gypsum board 2: EPS insulation

3: adhesive or adhesive mortar 4: concrete wall or slab

11: surface finish layer 11 ': surface finish layer

12: layer of rigid polyurethane foam insulation

101, 201: raw material tank of a polyol compound

102, 202: raw material tank of isocyanate compound

103,203: detergent tank 104,204: raw material stirring ejector

105, 205: upper layer feed roll 106: lower layer feed roll

107, 207: upper layer 108, 208: lower layer

109, 110, 209, 210: double slat conveyor

111, 211: Cutting machine

206: roller conveyor

Claims (6)

Between two surface finish layers, or one surface finish layer and one surface finish layer, an insulating layer of rigid polyurethane foam material is formed integrally without intervening adhesive, The surface finish is selected from the group consisting of gypsum board, CRC board, magnesium board, polyester nonwoven, pulp, inorganic board, woven fabric, paper and glass fiber-containing paper, and The surface material is an inner composite insulating wall, characterized in that the paper or non-woven fabric. The internal composite insulating wall according to claim 1, wherein the surface finish layer has a thickness of 0.2 to 10 mm, the surface layer has a thickness of 0.2 to 5 mm, and the insulation layer has a thickness of 30 to 80 mm. a) conveying the surface finish or lower layer, which is a surface material, to a double slat conveyor; b) feeding the reaction raw material of rigid polyurethane foam onto the bottom layer before the bottom layer reaches the double slat conveyor; c) transferring an upper layer, which is a surface finish or surface material, in the double slat conveyor at regular intervals up and down with the lower layer supplied with the reaction raw material; And d) converting the reaction raw material into rigid polyurethane foam through foaming and resination reaction while the upper and lower layers pass through a double slat conveyor, wherein the rigid polyurethane foam is interposed between the upper and lower layers. Forming and hardening to form an integrated laminate by self-adhesion; Including; At least one of the top and bottom layers is a surface finish, wherein the surface finish is from a group consisting of gypsum board, CRC board, magnesium board, polyester nonwoven, pulp, inorganic board, woven fabric, paper and glass fiber-containing paper The material of the surface material layer is selected from the group consisting of paper or nonwoven fabric. The method according to claim 3, wherein the upper layer and the lower layer are each supplied by a roll. 4. The method of claim 3 wherein the top layer is fed by a roll while the bottom layer is fed by a roller conveyor, the bottom layer being a surface finish layer made of gypsum board, CRC board, or magnesium board. Method for manufacturing internal composite insulating wall. The method of claim 3, wherein the step b) is performed by discharging the two-component hard polyurethane foam reaction raw material onto the lower layer using a raw material stirring ejector.

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