KR200471442Y1 - Noninflammable plate for interior finish material - Google Patents

Abstract

A non-flammable perforated plate for interior finishing materials, comprising a second surface layer (2) consisting of a non-flammable inorganic powder, a flame-retardant phenolic resin and a glass fiber, and a melamine resin and a deco paper on both sides of a core layer (1) made of an inorganic board. One surface layer 3 is composed of an inorganic composite laminated plate 4 sequentially stacked so as to be an outer surface layer.
The non-combustible perforated plate for the interior finish material as described above can support the sound absorbing board or the flaw material sufficiently can be used as a finishing material of the sound absorbing panel, the porosity is large, the flaw effect is high. In addition, various shapes and colors are available to create a suitable indoor atmosphere according to the application.

Description

Non-flammable Perforated Plate for Interior Finishing Material {NONINFLAMMABLE PLATE FOR INTERIOR FINISH MATERIAL}

The present invention relates to a non-flammable perforated plate for a finish material, and more particularly, to a non-combustible perforated plate for interior finish material including a structure in which a second surface layer and a first surface layer are sequentially laminated on both sides with respect to a core layer.

Conventional sound-absorbing interior material is weak to fire and easily burned, which can lead to a large accident, and heavy weight or sound insulation and sound absorption and insulation performance has a problem that the need to be compensated for this.

Therefore, the development of sound-absorbing interior materials that do not burn well in the event of fire is very urgently required.

An example of a technique for solving such a problem is disclosed in Documents 1 to 2 and the like.

That is, the following Document 1 relates to a sound absorbing interior material for automobiles, comprising a synthetic fiber felt and a sound absorbing plate punched in a synthetic resin foam formed of a built-in plate, and using a reflecting plate and a synthetic resin foam sheet as an auxiliary material. It has been disclosed that interior materials can be made to slow down and improve the sound absorption effect and thereby contribute to fuel efficiency increase due to the reduction of the vehicle body weight because the weight of the sound absorbing part is reduced.

In addition, Document 2 relates to a sound absorbing panel for building, wherein each of the inner surface of the two-side surface member made of steel sheet is attached to each of the support member made of polyurethane in a thin type, the surface of one surface member located on the indoor side of the two surface members Disclosed is a configuration of a sound absorbing panel in which a plurality of openings are formed in a group, each of which is perforated, and in which a sound absorbing member made of glass wool is filled in the interior of each support member attached to the inside of both surface members.

(Patent Document 1) Republic of Korea Patent Publication No. 1999-0039471 (published on June 5, 1999) (Patent Document 2) Republic of Korea Registered Patent No. 20-0203659 (Registered on September 6, 2000)

However, the perforated plate according to the prior art as described above has a problem that the sound absorption effect and disaster prevention effect is insufficient.

An object of the present invention is to solve the problems described above, and to provide a non-flammable perforated plate for interior finishing materials with light weight and high strength maintenance and sound absorption (sound insulation) efficiency is good.

Another object of the present invention is to provide a non-combustible perforated plate for the interior finish material to implement a variety of colors.

Still another object of the present invention is to provide a non-combustible perforated plate for interior finishing material having excellent thermal insulation performance.

In order to achieve the above object, the non-combustible perforated plate for interior finishing material according to the present invention has a second surface layer (2) and melamine made of non-flammable inorganic powder, flame-retardant phenolic resin and glass fiber on both sides of the core layer (1) made of an inorganic board. The first surface layer (3) consisting of resin and deco-paper includes an inorganic composite laminate (4) sequentially stacked so as to be the outer surface layer, characterized in that a plurality of fine pores.

In addition, in the non-combustible perforated plate for interior finishing material according to the present invention, it characterized in that one or two kinds of micropores are perforated on both sides of the laminated inorganic composite laminate (4).

In addition, in the non-combustible perforated plate for the interior finish material according to the present invention, the core layer (1) is characterized in that any one inorganic board selected from gypsum board, vermiculite board and magnesium oxide board.

In addition, in the non-combustible perforated plate for the interior finish material according to the present invention, the second surface layer 2 is composed of 40 to 70% by weight of non-flammable base powder, 20 to 50% by weight of flame retardant phenolic resin and 5 to 10% by weight of glass fiber It features.

In addition, in the non-combustible perforated plate for the interior finish material according to the present invention, the first surface layer 3 is characterized in that the composite material layer of 40 to 80% by weight of melamine resin and 20 to 60% by weight of deco paper.

In addition, in the non-combustible perforated plate for the interior finish material according to the present invention, the core layer 1 is 2.6mm to 3.0mm or 6.6mm to 7.0mm, the second surface layer 2 is 0.45mm to 0.55mm and the first surface layer (3) ) Is 0.08mm to 0.12mm thick.

As described above, according to the non-combustible perforated plate for interior finishing material according to the present invention, when the light-weight and structurally sufficient strength is used as the finishing material of the sound absorbing panel, the perforated plate can sufficiently support the sound absorbing board or the sound absorbing material. .

In addition, according to the non-combustible perforated plate for interior finishing material according to the present invention, the effect of improving the sound absorbing effect is obtained by a high porosity due to the structure such as a constant perforation size and arrangement of the perforated plate.

In addition, according to the non-combustible perforated plate for the interior finishing material according to the present invention, various shapes and colors are possible to obtain an effect that can produce a suitable indoor atmosphere according to the application.

1 is a cross-sectional view of a non-combustible perforated plate for interior finish material according to the present invention.
Figure 2 is a view showing the perforation structure of the non-combustible perforated plate for interior finish according to the present invention.
Figure 3 is a process chart for explaining the manufacturing process of the non-combustible perforated plate for interior finish according to the present invention.

The above and other objects and novel features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

First, the basic characteristics of the non-combustible perforated plate for interior finish according to the present invention will be described.

The non-combustible perforated plate for interior finishing material according to the present invention is an inorganic composite layer composed of phenol resin, non-combustible inorganic powder, and glass fiber on both surfaces of the core layer (1) made of an inorganic board made of gypsum, vermiculite, and magnesium oxide. The first surface layer 3 is laminated with a melamine resin surface layer composed of a second surface layer 2, deco paper, and melamine resin, respectively, to form an inorganic composite laminate 4, and then an additional stainless plate is laminated on both outer surface layers thereof. Then, press molding and perforation are performed.

In addition, according to the non-combustible perforated plate for the interior finish according to the present invention, compared to the conventional perforated plate consisting of only the metal perforated plate or thermosetting resin plate to increase the perforation arrangement and porosity to increase the sound absorbing effect, with excellent incombustibility of the perforated plate material Due to this, it mainly blocks fire propagation and enlargement, and can produce atmosphere suitable for indoor use with various colors and shapes of the surface layer.

Hereinafter, the structure of the present invention will be described with reference to FIGS.

1 is a view showing a cross-sectional view of a non-combustible perforated plate for interior finish material according to the present invention, Figure 2 is a view showing a perforated structure of a non-combustible perforated plate for interior finish material according to the present invention.

As shown in Figure 1, the non-combustible perforated plate for the interior finish according to the present invention is the core layer (1), the second surface layer (2) and the first surface layer (3) provided on both surfaces of the core layer (1) outer surface layer It consists of a stacked structure to be sequentially.

That is, the core layer (1) in the non-combustible perforated plate for the interior finish material according to the present invention may be used as the inorganic board layer, gypsum board, vermiculite board, magnesium oxide board and the like, the thickness of the inorganic board is 2.6mm to 3.0mm or 6.6mm to 7.0mm, 10% or less moisture content, 1.2 ~ 1.3 apparent density, 7MPa or more tensile strength is used.

The second surface layer 2 is composed of 40 to 70% by weight of non-flammable base powder, 20 to 50% by weight of flame retardant phenolic resin, and 5 to 10% by weight of glass fiber, and the thickness of the second surface layer is 0.45mm to 0.55mm. Molded by heat curing at high temperature and high pressure, it has excellent impact resistance, cold and heat resistance, boiling resistance, and dimensional change rate, so it is hardly damaged, peeled or deformed even after long time use. As non-flammable base powder, calcium carbonate, aluminum hydroxide, magnesium oxide, silicon dioxide, etc. can be used alone or in a certain ratio.It can be used in flame retardant phenolic resin and weight ratio of 1: 1, 1: 2 or 1: 3 It is used mixed in proportion.

In addition, the first surface layer 3 is composed of a melamine resin 40 to 80% by weight and decopaper 20 to 60% by weight of the composite material layer, the thickness of the first surface layer is 0.08mm to 0.12mm. Molded by heat curing at high temperature and high pressure, it has excellent impact resistance, cold and heat resistance, boiling resistance, and dimensional change rate, so it is hardly damaged, peeled or deformed even after long time use.

As shown in Figure 2, as an example of a non-combustible perforated plate for interior finishing material according to the present invention, the thickness of the perforated plate is 3.7mm to 4.3mm or 7.7mm to 8.3mm, the size is 600mm horizontal, 1200mm vertical. The perforation starts with a 5 mm gap 9 at the edge of the perforated plate, and can be attached to the prefabricated border 5 having a width 6 of 10 mm on the side for easy construction. The micropore size is 12 mm in diameter, the micropore and the microcavity spacing 7 is 10mm, the spacing 8 between the micropore center and the adjacent micropore center is 22mm. Generally, one type of micropores is punched, but is not necessarily limited thereto. One or two kinds of micropores may be punched at regular intervals.

Figure 3 is a process chart for explaining the manufacturing process of the non-combustible perforated plate for interior finish according to the present invention having the structure as described above.

The non-combustible perforated plate for interior finishing material according to the present invention, first, to create a first surface layer (S10). The rolled deco paper (basic weight 80 g / m ² ) is immersed in an impregnation bath containing melamine resin (solid content of 45% by weight). Thereafter, the squeeze roller gap was adjusted to adjust the impregnation amount, and then passed through a dryer at a temperature of 125 to 130 ° C. to blow off the solvent and some volatiles, followed by 55 to 65% by weight of the resin content (RC) and the volatile content (VC) 6 to 7 The first surface layer 3 is prepared by adjusting the weight percentage.

Next, in the step (S20) of producing a second surface layer, a phenolic resin (solid content of 45% by weight) and a non-flammable base powder, that is, calcium carbonate or aluminum hydroxide, magnesium oxide, or a mixture thereof (a ratio of 1: 1, 2). 1: or 3: 1). After that, put the glass fiber sheet (45g / m ² ) in the impregnation tank, and then adjust the impregnation amount using a squeeze roller, and passed through the dryer 125 to 130 ℃ to blow off the solvent and some volatiles to resin content (RC) 85 To 95% by weight, volatile matter (VC) 1.5 to 3.0% by weight to make a second surface layer (2).

Combining and stacking the first surface layer 3 and the second surface layer 2 prepared in the step S10 and S20 (S30), the second surface layer on both sides around the 6.8mm magnesium oxide board core layer (1) (2) And the first surface layer 3 in the prepreg state was made into an outer surface layer, and the outer both surface surfaces of the first surface layer were laminated with a stainless plate.

The laminated substrate was placed in a multi-stage molding press at a temperature of 130 to 150 ° C. and a pressure of 55 to 65 kgf / cm ² and then molded for 30 to 60 minutes (S40). The temperature increase time and the cooling time are 20 to 50 minutes, respectively.

After the forming step as described above, the molded product is cut and perforated to 600 × 600, 600 × 800, 600 × 1200 or 600 × 2400 size (S50).

In the perforation of step S50, the perforation start position starts by jumping 5mm from the side and the size of the micropores is 12mm in diameter, the micropore and the microspace spacing is 10mm, the spacing between the micropore center and the neighboring micropore center is 22mm. Perforate as much as possible. In addition, a 10mm wide prefabricated border is attached to the perforated plate for easy construction.

In the manufacturing process of the non-combustible perforated plate for the interior finish material according to the present invention as described above, the porosity is large due to the structure and the size of the micropores, and the sound absorption is good.

When the cutting and perforation as described above is completed, the perforated plate according to the present invention is obtained (S80).

The finished perforated plate is light in weight and has sufficient structural strength, so that the perforated plate can sufficiently support the flaw board or the flaw material when used as a finishing material for flaw panels.

Experimental Example  1. Sound absorption test.

In order to compare the sound absorption performance of the present invention obtained in the above example, a thermosetting resin plate and an aluminum plate were punched in a similar structure with other existing products, and then tested by a reverberation chamber method.

The reverberation chamber defect rate values are represented by arithmetic mean values at the center frequencies of 100 Hz to 5,000 Hz, respectively.

As a result, the inorganic composite perforated plate of the present invention showed a higher scratching effect than the perforated plate of thermosetting resin and aluminum. (See Tables 1, 2, 3, 4)

Sound absorption rate comparison Inorganic composite material punched plate
(This product) Thermosetting Resin Perforated Plate
(Existing product) Aluminum Perforated Plate
(Existing product) Absorption rate 0.29 0.08 0.04

Sound absorption test result for inorganic composite punched plate (this product) Frequency [Hz] Absorption coefficient Frequency [Hz] Absorption coefficient 100 0.15 800 0.30 125 0.15 1000 0.32 160 0.23 1250 0.34 200 0.29 1600 0.31 250 0.32 2000 0.32 315 0.36 2500 0.32 400 0.31 3150 0.34 500 0.22 4000 0.36 630 0.20 5000 0.36

Sound-absorption test results for thermosetting resin punched plate (existing product) Frequency [Hz] Absorption coefficient Frequency [Hz] Absorption coefficient 100 0.41 800 0.05 125 0.33 1000 0.04 160 0.23 1250 0.03 200 0.23 1600 0.03 250 0.16 2000 0.03 315 0.13 2500 0.02 400 0.08 3150 0.01 500 0.07 4000 0.03 630 0.06 5000 0.05

Sound Absorption Test Result for Aluminum Perforated Plate (Existing Product) Frequency [Hz] Absorption coefficient Frequency [Hz] Absorption coefficient 100 0.30 800 0.02 125 0.26 1000 0.02 160 0.15 1250 0.02 200 0.11 1600 0.02 250 0.09 2000 0.03 315 0.07 2500 0.04 400 0.04 3150 0.06 500 0.03 4000 0.05 630 0.02 5000 0.05

Experimental Example  2. Incombustibility test .

In order to determine the incombustible performance of the present invention obtained in the above embodiment, the thermosetting resin plate and the aluminum plate were punched in a similar structure as a conventional product, and the total radiant heat and gas flux were tested.

As a result, it can be seen that the inorganic composite perforated plate of the present invention can prevent rapid spread of fire due to meeting the requirements of semi-combustible materials, thereby ensuring evacuation time and preventing asphyxiation due to harmful gas. (See Table 5) )

Incombustibility test results by type of perforated plate

Kinds
Test Items Remarks
Heat release test:
Total heat released (MJ / m ² ) Gas Hazard Test:
Average Behavioral Downtime of Rats
(Minutes: seconds) Semi-non-combustible material standard
(National Disaster Prevention Agency Notice)
-Heat release test: 8MJ / m ² or less when heated for 10 minutes
Average stop time: 9:00 Inorganic composite material punched plate
(This product) 7.3 13:22 Thermosetting Resin Perforated Plate 15.2 7:25 Aluminum Perforated Plate 0.05 15:00

Although the invention made by the present inventors has been described in detail according to the above embodiment, the present invention is not limited to the above embodiment and can be variously changed without departing from the gist of the present invention.

1: core layer 2: 2nd surface layer
3: first surface layer 4: inorganic composite laminate
5: prefabricated border 6: prefabricated border width
7: Space between other spaces 8: Space between centers of holes
9: gap between perforated plate edge and other space

Claims (6)

The outer surface layer has a second surface layer (2) made of non-flammable base powder, flame retardant phenolic resin and glass fiber, and a first surface layer (3) made of melamine resin and deco paper on both sides of the core layer (1) made of inorganic board. Including an inorganic composite laminate 4 sequentially stacked as possible,
The core layer 1 is any one inorganic board selected from gypsum board, vermiculite board and magnesium oxide board,
After the second surface layer 2 is mixed with calcium carbonate or aluminum hydroxide or magnesium oxide or a mixture thereof and a phenolic resin at a predetermined ratio, the second surface layer is placed in an impregnation bath and soaked with a glass fiber sheet, and then the amount of impregnation is adjusted using a squeeze roller. The solvent and some volatiles are blown through the 125 ° C to 130 ° C dryer to adjust the resin content (RC) to 85 to 95% by weight, and the volatile content (VC) to 1.5 to 3.0% by weight. Consisting of 20% by weight, flame retardant phenolic resin 20-50% by weight and glass fiber 5-10% by weight,
The first surface layer 3 soaks the decor paper in the impregnation tank containing the melamine resin, adjusts the impregnation amount by adjusting the squeeze roller gap, and then blows the solvent and some volatiles through a temperature of 125 ° C. to 130 ° C. It is prepared by adjusting the resin content (RC) of 55 to 65% by weight and the volatile content (VC) of 6 to 7% by weight, made of melamine resin 40 to 80% by weight and decopaper 20 to 60% by weight,
One or two types of micropores are formed on both sides of the inorganic composite laminate 4 on which both the second surface layer 2 and the first surface layer 3 in the prepreg state are formed as the outer surface layer around the core layer 1. Non-combustible perforated plate for interior finish material characterized in that perforated.
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