KR101656026B1 - Interior or exterior finish materials for building and manufacturing method thereof - Google Patents

Abstract

A method of manufacturing an interior and exterior material of a building according to an embodiment of the present invention includes a first extrusion step of pressurizing and heating a polystyrene foam composition and a second extrusion step of heating the polystyrene foam composition at a temperature lower than the first extrusion step A core block forming step of forming extruded polystyrene (XPS) formed by a second extruding step of applying heat of the extruded polystyrene (XPS); And a coating film layer forming step of forming a coating film layer of a thermoplastic resin on one surface of the core block. The inner and outer materials of the building according to an embodiment of the present invention may have excellent strength and heat insulation.

Description

TECHNICAL FIELD [0001] The present invention relates to an interior or exterior material of a building,

The present invention relates to an interior and exterior material of a building and a manufacturing method thereof, and more particularly, to an interior and exterior material of a building having excellent strength and heat insulating function and a manufacturing method thereof.

The building has historically been built with bricks, cement blocks and wooden frames, more recently with steel frames and plaster. Materials and technologies used in building construction have been developed to reduce costs, increase energy efficiency, reduce the amount of wood used in buildings, and reduce waste of materials.

Cement blocks and brick buildings require a lot of manpower to build the building, which increases the building cost of the building. Wood has long been a major ingredient in building construction, but recently there is a demand to conserve forest resources and is inherently more susceptible to damage from harsh weather, humidity, mold, fire and pests. Also, when wood is used to build a building, a large amount of waste can be generated.

It is also desirable to increase the energy efficiency of the building in order to reduce energy costs during the building's lifetime. Foam blocks are becoming a popular alternative because the construction of cement blocks, bricks and timber frames and plaster does not provide a high level of energy efficiency. These foam blocks are environmentally sustainable compared to traditional wood, cement block and brick building materials and can increase the thermal efficiency of the building. In addition, the foam block system is lightweight and easy to manufacture and mold as required, requiring relatively low manpower to mold into the structure of the building. It is also resistant to moisture, mold, fire and pest damage, and can be made from recyclable and recycled materials.

Korean Patent Laid-Open Publication No. 2008-0096029 discloses an integral type flexible insulating structure that can be applied to a concrete surface with a curved surface or unevenness and is easy to construct.

Korean Patent Laid-Open No. 2010-0118913 discloses a method for producing an EPS board which is laminated on a surface metal plate exposed on the surface of a structure and on the surface metal plate and comprises an inorganic flame retardant in an EPS board formed by compressing a plurality of expandable polystyrene beads A flame retardant board having a predetermined thickness formed by filling the flame retardant between the plurality of EPS beads by injecting the flame retardant into the flame-retardant board, a back metal plate spaced apart from the flame-retardant board by a predetermined hollow layer, And a polyurethane heat insulation material.

An object of an embodiment according to the present invention is to provide an interior and exterior material of a building having excellent strength and heat insulating function and a manufacturing method thereof.

One embodiment of the present invention provides a method of forming extruded polystyrene (XPS) formed by a first extrusion step of pressurizing and heating a polystyrene foam composition and a second extrusion step of applying heat at a lower temperature than the first extrusion step A core block forming step of forming a core block; And a coating film layer forming step of forming a coating film layer of a thermoplastic resin on one side of the core block.

The polystyrene foam composition may be characterized as comprising recycled polystyrene.

The first extruding step is performed at a temperature of 180 ° C or more, and the second extruding step is performed at a temperature of 70 ° C or more.

And the second extrusion step is performed for a longer time than the first extrusion step.

The coating film layer may be a decor sheet having a colored or patterned structure.

The coating film layer may be formed by mixing a flame retardant.

The polystyrene foam composition may include at least one blowing agent selected from the group consisting of HFC-134a, HFC-152a, butane, ethanol, dimethyl ether, and carbon dioxide.

The step of forming the coating film layer may be performed by a method of hot pressing, a solid adhesive, or a hot melt adhesive.

Another embodiment of the present invention provides an interior and exterior material of a building, which is manufactured by the above method.

The interior and exterior materials of a building according to an embodiment of the present invention not only can impart heat insulation performance to a building but also enhance physical properties such as rigidity, durability, compressive strength and dimensional stability, and can have excellent flame retardancy and waterproof function.

In addition, the interior and exterior materials of buildings according to one embodiment of the present invention can be thinned and lightweight, easy to store and transport, and easy to manufacture and install, thereby improving workability.

More specifically, according to one embodiment of the present invention, extruded polystyrene can be formed through a two-step extrusion process. The extruded polystyrene by the two-stage extrusion process has a closed cell, which not only has an adiabatic function but also has excellent strength, so that a core block of a thin plate can be formed.

In addition, the coating film layer can protect the core block from the deterioration of physical properties such as scratching or tearing caused by the stress applied to the building, deterioration due to moisture inflow, durability, and heat insulation performance after the construction or interior and exterior materials of the building are applied .

In addition, the coating film layer can be decorated to give a marble or wood effect, and the interior and exterior materials of the building to which such a coating film layer is applied can be completed together with the heat insulation and finishing work as long as it is attached to the concrete wall during remodeling and interior construction Cost savings can be achieved.

If the interior or exterior material according to the present invention is attached after the wall, ceiling, floor, or the like of the building is attached, the layer of the coating film having the decorative function is directed to the outside. Accordingly, it is not necessary to construct another wallpaper, .

In addition, it is possible to block harmful substances coming out from concrete or gypsum wall, thereby being eco-friendly and preventing a sick house syndrome phenomenon.

The extruded polystyrene according to an embodiment of the present invention has an excellent flame retardant function and, when the coating film layer additionally has a flame retarding function, the interior and exterior materials of the building according to an embodiment of the present invention have synergistic effects, . Since the coating film layer is located on the outer surface facing the user at the time of construction of the inside / outside material, the flame retarding function can be primarily exhibited when a fire occurs, so that the fire can be prevented from becoming large.

1 is an exploded perspective view schematically showing an interior and exterior material of a building according to an embodiment of the present invention.
2 is a photograph schematically showing a manufacturing apparatus for manufacturing an interior and exterior material of a building according to an embodiment of the present invention.
3 is a schematic view schematically showing a method for manufacturing an interior and exterior material of a building according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Therefore, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the following embodiments.

Further, preferred embodiments of the present invention can be described with reference to the accompanying drawings, which are provided for a more complete understanding of the present invention to those skilled in the art. Therefore, the scope of the present invention is not limited to the accompanying drawings, and the shapes and sizes of the elements in the drawings may be exaggerated for clarity, and the elements denoted by the same reference numerals in the drawings are the same elements.

Throughout the description of the present invention, when a component is referred to as " comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise.

In the specification of the present invention, it is to be understood that when a step is located "on" or "before" another step, this is not only the case where a step is in a direct time series relationship with another step, And may have the same rights as in the case of an indirect temporal relationship in which the temporal order of the two phases can be changed.

The terms " about "," substantially ", etc. used to the extent that they are used throughout the specification of the present invention are used in their numerical values or in close proximity to their numerical values when the manufacturing and material tolerances inherent in the meanings mentioned are presented, Is used to prevent unauthorized exploitation by an unscrupulous infringer of precise or absolute disclosures in order to aid in the understanding of the disclosure. The term " step " or " step of ~ " used throughout the specification does not mean " step for.

1 is an exploded perspective view schematically showing an interior and exterior material of a building according to an embodiment of the present invention. 2 is a photograph schematically showing a manufacturing apparatus for manufacturing an interior and exterior material of a building according to an embodiment of the present invention, and Fig. 3 is a schematic view schematically showing a method of manufacturing an interior and exterior material of a building according to an embodiment of the present invention to be.

The present invention relates to an interior and exterior material of a building and a method of manufacturing the same, and an interior and exterior material of a building according to an embodiment of the present invention can be manufactured by a method of manufacturing an interior and exterior material of a building according to an embodiment of the present invention. Therefore, the method of manufacturing an inside / outside material of a building according to an embodiment of the present invention will be mainly described, and thus the inside / outside material of a building according to an embodiment of the present invention can be more clearly specified and understood.

As shown in FIG. 1, an internal and external material of a building according to an embodiment of the present invention may include a core block 110 and a coating film layer 120 formed on one side of the core block.

The inside and outside material of a building according to an embodiment of the present invention can be manufactured by forming a core block 110 and laminating a coating film layer 120 on one side of the core block 110.

The core block 110 may be extruded polystyrene formed by extruding a polystyrene foam composition through a two-step extrusion process.

Since the extruded polystyrene has a closed cell, the extruded polystyrene has excellent heat insulation effect and can have a waterproof function and a high strength.

More specifically, the extruded polystyrene core block can be formed through first and second extrusion steps of pressurizing and heating the polystyrene foam composition.

2 and 3, the first extrusion step and the second extrusion step may be performed through the first extrusion part 10 and the second extrusion part 20.

First, the polystyrene foam composition can be injected into the first extruding portion 10.

At this time, the polystyrene foam composition may include a polystyrene resin and a foaming agent, and recycled polystyrene may be used. The proportion of recycled polystyrene may be 40 to 60% based on the total composition. According to one embodiment of the present invention, even when recycled polystyrene is used, a foam foam of excellent strength can be produced, and the physical properties of the foam foam are not deteriorated.

The polystyrene foam composition may include one or more blowing agents selected from the group consisting of HFC-134a, HFC-152a, butane, ethanol, dimethyl ether, and carbon dioxide. Carbon dioxide and HFC-134a are flame-retardant gases, which can improve the flame-retarding function of the core block when used as a foaming agent.

According to one embodiment of the present invention, the extrusion of the polystyrene may be performed through two steps, and the first extrusion step may be performed at a higher temperature than the second extrusion step.

For example, the first extruded portion 10 can be maintained at 180 DEG C or higher, although not limited thereto. More specifically, the first extrusion step can be performed at a temperature of 200 to 220 캜, preferably 210 to 215 캜.

After the first extrusion step, the polystyrene foam composition can be transferred to the second extrusion part 20 through the cross bar, and the second extrusion step can be performed in the second extrusion part 20.

The second extruding step may be performed at a lower temperature than the first extruding step, but the second extruding part 20 may be maintained at 70 ° C or higher, although not limited thereto. More specifically 70 to 120 ° C. The outer surface of the second extruded portion 20 may not be easily controlled in temperature as compared with the central portion, and the temperature may be relatively lowered. Accordingly, the average temperature of the second extruded portion 20 may be 80 to 90 캜.

In addition, the second extrusion step may be performed for a longer time than the first extrusion step. As shown in the figure, the second extrusion part 20 is longer than the first extrusion part 10, so that the second heating step can be performed for a longer time.

The first and second extrusion steps may be performed at a pressure of at least 120 bar.

When the second extrusion step is completed, the extruded polystyrene (XPS) moves to the die part 30, and the die part 30 can be formed into a desired shape, cut, cooled, and planarized.

Although not limited thereto, the shape of the core block may be formed into a plate shape, and may be formed into various shapes such as a disk shape and a rectangular plate shape.

As described above, the extruded extruded polystyrene by the two-step extrusion process forms a closed cell, which not only has an excellent heat-insulating function but also has excellent strength, can form a core block of a thin plate, and can have a waterproof function.

Next, a coating film layer forming step of forming a coating film layer 120 made of thermoplastic resin on one side of the core block 110 formed as described above may be performed.

The coating film layer 120 may be formed of, for example, a polypropylene resin, a polyethylene terephthalate (PET) resin, or an acrylonitrile-butadiene-styrene (ABS) .

According to one embodiment of the present invention, the coating film layer 120 may be bonded to the core block 110, for example, but not limited to, hot pressing, solid adhesive, hot melt adhesive Or the like.

The coating film layer 120 can prevent the core block 110 from being damaged. There is a possibility that the core block may be damaged due to scratches or tearing due to stress applied when the interior and exterior materials of the building are applied or after the construction of the building. Further, moisture may flow into the core block, which may deteriorate physical properties such as deterioration, durability and thermal insulation performance. However, according to one embodiment of the present invention, the damage of the core block can be prevented by the coating film layer.

According to one embodiment of the present invention, the coating film layer 120 may be a decor sheet having a decorating function. Although not limited thereto, the coating film layer 120 may be colored or patterned. When the thermoplastic resin is molded, pigments and the like may be added to impart various colors to the coating film layer. In addition, various patterns can be formed on the coating film layer 120. For example, the pattern can be represented by a color, though not limited thereto.

For example, the coating film layer may be decorated to give a marble or wood effect, and the interior and exterior materials of the building to which such a coating film layer is applied may have a cost saving effect in remodeling and interior construction.

In general, in the case of insulation work in a room, a heat insulating material is inserted into a concrete wall, and a mesh net and gypsum are attached to the interior of the concrete wall. However, the interior and exterior materials according to one embodiment of the present invention do not require such construction, Insulation construction and finishing construction can be completed together.

That is, when the interior or exterior material according to the present invention is attached after the wall, the ceiling, the floor, or the like of the building is attached, the layer of the coating film having the decorative function is directed to the outside. Accordingly, Lt; / RTI > As a result, the cost and time of construction can be greatly reduced. In addition, it is possible to block harmful substances coming out from concrete or gypsum wall, thereby being eco-friendly and preventing a sick house syndrome phenomenon.

Also, according to one embodiment of the present invention, the coating film layer 120 may have a flame retarding function. For example, a flame retardant may be mixed to form a coating film layer. The kind of the flame retardant is not particularly limited, and a flame retardant conventionally used in the art can be used.

The extruded polystyrene according to an embodiment of the present invention has an excellent flame retardant function and, when the coating film layer additionally has a flame retarding function, the interior and exterior materials of the building according to an embodiment of the present invention have synergistic effects, . Since the coating film layer is located on the outer surface facing the user at the time of construction of the inside / outside material, the flame retarding function can be primarily exhibited when a fire occurs, so that the fire can be prevented from becoming large.

As described above, the interior and exterior materials of a building according to an embodiment of the present invention not only can impart heat insulation performance to a building but also have physical properties such as durability, compression strength and dimensional stability, and can have waterproof function and flame retardancy .

In addition, the interior and exterior materials of buildings according to one embodiment of the present invention can be thinned and lightweight, easy to store and transport, and easy to manufacture and install, thereby improving workability.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.

[Example]

Virgin PS (polystyrene) and recycled PS were prepared in a ratio of 5: 5, and 90 parts by weight of HFC-134a and 10 parts by weight of carbon dioxide were used as foaming agents. The foam composition was fed into an extruder having first and second extruders and extruded and molded under the conditions shown in Tables 1 to 3 below. Unless otherwise indicated, the unit can be understood in degrees Celsius.

Primary extruder Crossbar Crossbar Pressure Blowing agent pressure Rpm Ampere Pressure H1 H2 H3 H4 H5 H6 H7 H8 84.5 187 131bar 210 212 214 215 215 210 198 198 160bar 140bar

Secondary extruder Rpm Ampere Pressure H9 H10 H11 H12 H13 H14 H15 H16 H17 H18 H19 H20 18.6 125 126bar 40 126 115 104 95 83 75 73 73 71 70 110

Dies Dies lip Calibrator haul-off speed (m / min) width (mm)
1st Chiller (℃) 2nd Chiller (℃)
Pressure flange left middle right Top (℃) Bottom (° C) front Rear P1 (mm) P2 (mm) 57 110 113 111 113 76 76 90 90 48 58 10.4 1040 25 25

A coating film layer formed of a thermoplastic resin was laminated on the core block manufactured as described above by a thermocompression bonding method. The internal and external materials thus produced were formed as thin films, but were evaluated to have excellent strength and heat insulating function.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It is evident that many variations are possible by those skilled in the art. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. something to do.

10: first extruder 20: second extruder
30:
110: core block 120: coating film layer

Claims (9)

A core block forming step of forming extruded polystyrene (XPS) formed by a first extruding step of pressurizing and heating the polystyrene foam composition and a second extruding step of applying heat at a lower temperature than the first extruding step; And
A coating film layer formed of a thermoplastic resin mixed with a flame retardant on one surface of the core block and formed of a colored or patterned decorative film layer by a hot pressing method, a solid adhesive method, or a hot melt adhesive method, Forming step,
Wherein the polystyrene foam composition comprises from 40 to 60% by weight of recycled polystyrene and a blowing agent, wherein the first extruding step is performed at a temperature of from 180 캜 to 220 캜 and the second extruding step is performed at a temperature of from 70 캜 to 120 캜 And the second extrusion step is performed for a longer time than the first extrusion step.
delete delete delete delete delete The method according to claim 1,
Wherein the polystyrene foam composition comprises at least one blowing agent selected from the group consisting of HFC-134a, HFC-152a, butane, ethanol, dimethyl ether, and carbon dioxide.
delete 8. An interior and exterior material of a building, which is manufactured by the method of claim 1 or 7.

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