KR102557168B1 - Color board having the function of preventing flame and fabricating method of the same - Google Patents

Abstract

The present invention manufactures a new flame-retardant color board that sufficiently satisfies the fire safety standards presented by the National Fire Agency while minimizing environmental pollution by using a simple manufacturing process and the use of water-based paint and eco-friendly flame retardant liquid by applying a method such as spray to a board. To provide a method, (a) 1 to 5 parts by weight of triethyl phosphoric acid, 43 to 62 parts by weight of purified water, 30 to 40 parts by weight of [nitrilotris (methylene)] triphosphonic acid ammonium salt, 5 to 15 parts by weight of ammonium polyphosphate Preparing an eco-friendly phosphoric acid-based flame retardant comprising 2 to 5 parts by weight of isopropyl alcohol and parts by weight (S100); (b) mixing the environmentally friendly phosphoric acid-based flame retardant prepared in step (a) with an aqueous paint, mixing the water-based paint and the flame retardant in a mixing weight ratio of 3: 7 to 7: 3 to prepare a flame retardant paint ( S200); (c) uniformly applying the flame retardant paint obtained in step (b) to a plate (S300); and (d) after step (c), drying the plate material coated with the flame retardant paint (S400); It is characterized in that it includes.

Description

Flame retardant color board and its manufacturing method {COLOR BOARD HAVING THE FUNCTION OF PREVENTING FLAME AND FABRICATING METHOD OF THE SAME}

The present invention relates to a color board having a flame retardant function and a method for manufacturing the same, and more particularly, to a method for manufacturing a flame retardant color board obtained by applying a mixed solution obtained by mixing an eco-friendly phosphoric acid-based water-soluble flame retardant with a water-based paint to a plate material, and a method for manufacturing the same It relates to a manufactured flame retardant color board.

Wood, plywood, medium-density fiberboard (MDF), and paper are widely used for furniture and interior materials. When wood is heated, it is decomposed into wood tar and wood gas, and the combustible wood gas is oxidized and burns buildings in an instant, causing damage to property and human life.

As a first prior art related to the production of such flame retardant wood, Korean Patent Registration No. 10-1390631 (Method for Manufacturing Flame Retardant Wood) is disclosed. Referring to FIG. 1, the dried wood is transferred to a vacuum chamber. Step (S1), maintaining the chamber in a vacuum, and then transferring the flame retardant resin for wood impregnation to the chamber (S2), impregnating the wood by pressurizing the flame retardant resin (S3), and drying the wood (S4) includes

However, in the first prior art manufacturing method, a vacuum chamber must be used and a pressure exceeding 10 kg / cm 2 must be applied in the step of pressurizing the flame retardant resin. It requires many complex processes, such as recovery.

On the other hand, as a second prior art related to the manufacture of flame retardant wood, Korean Patent Publication No. 10-2016-0124728 (fire retardant waterproof treatment method for wood) is disclosed, which will be described with reference to FIG. 2a.

As shown in FIG. 2a, in the second method for treating wood with flame retardant waterproofing according to the prior art, a) the surface-processed wood having a moisture content of 10 to 19% is put into a vacuum chamber, and then the wood surface is exhausted with vacuum equipment for a predetermined time. and vacuum exhausting to minimize residual amounts of moisture, air, and impurities contained therein (S1); b) After injecting the flame retardant waterproofing solution to the vacuum chamber (S2), a high-pressure impregnator is used for a predetermined time at a pressure selected in the range of 8 to 25 kgf/cm2 according to the species, thickness, density, and characteristics of the evacuated wood. Step (S3) of evenly impregnating the flame retardant waterproofing solution into the wood by vibrating with an ultrasonic vibrator installed inside the vacuum chamber while pressurizing; c) recovering the flame retardant waterproofing solution used for impregnation so that it can be reused; d) Dehydration induces rapid drying while maintaining flame retardancy and waterproofness of wood by vacuuming the inside of the vacuum chamber using vacuum equipment and dehydrating so that 8 to 15% of the flame retardant waterproofing liquid excessively impregnated into the surface of the wood and the inside of the cellulose remains. Step (S4); e) naturally drying the flame retardant waterproofing solution by tilting the dehydrated wood in a ventilated shade for several hours (S5); f) Putting naturally dried wood into a dryer and drying it by heating it at a temperature of 65 to 80 ° C for 2 to 4 days (S6); The flame retardant waterproofing solution is obtained by mixing any one of triethyl phosphate, ammonium phosphate, and ammonium polyphosphate having a viscosity of 0.1 to 5 cSt and a water-soluble silicone waterproofing solution in a weight ratio of 5 to 15: 1, and then the surface Ethylene in a weight ratio of 2 to 5% is further mixed to reduce the tension, but the water-soluble silicone waterproofing liquid has a solid content of 60% and is an emulsified product of water-soluble silicone oil, Hansol E&C's product name SHM2163, so that flame retardancy and waterproofing of wood are treated at once can be characterized as

However, the second prior art, like the first prior art, requires complicated processes such as a vacuum chamber, pressurized impregnation, and flame retardant waterproofing solution recovery.

Also, as a third prior art related to the production of flame retardant wood, Korean Patent Registration No. 10-1905682 (Eco-friendly flame retardant liquid composition for wood and method for producing flame retardant wood, flame retardant wood and semi-non-flameable wood using the composition) is disclosed Bar, this will be described with reference to FIG. 2B.

As shown in FIG. 2B, the third method for treating wood according to the prior art includes a first drying step (S201) of drying the wood to adjust the moisture content to 12 to 15%, and the first drying step. A first vacuum treatment step (S203) of applying a vacuum of -1.0 MPa to the dried wood for 1 hour, impregnating the wood vacuum-treated through the first vacuum treatment step with a flame retardant liquid and applying a pressure of 300 kg / 1.6 to 2.0 MPa. A flame retardant liquid injection step (S205) of injecting a flame retardant liquid of m, a second vacuum treatment step (S207) of applying a vacuum of -1.0 MPa to the wood injected with the flame retardant liquid through the flame retardant liquid injection step for 30 minutes (S207), A curing step (S209) of curing the wood vacuum-treated through the second vacuum treatment step for 20 to 30 hours and a second drying step (S211) of drying the wood cured through the curing step to adjust the moisture content to 12% or less The flame retardant solution consists of 10 to 15% by weight of sodium pyrophosphate, 5 to 7% by weight of urea, 5 to 7% by weight of phosphoric acid, 3 to 5% by weight of borax, 0.5 to 1.5% by weight of a surfactant, and the remaining amount of purified water .

And, the third prior art also requires a complicated process like the second prior art.

On the other hand, as a fourth prior art for manufacturing a flame retardant particle board, Korean Patent Registration No. 10-2188403 (a method for manufacturing an eco-friendly flame retardant particle board and an eco-friendly flame retardant particle board manufactured therefrom) is disclosed, which is shown in FIG. 3 Referring to, the explanation is as follows.

As shown in FIG. 3, the method of manufacturing an eco-friendly flame retardant particle board according to the fourth prior art includes: manufacturing wood chips by cutting wood material with a crusher (S10); drying the wood chips (S20); classifying the dried wood chips by size and weight into chips for a surface layer and chips for a middle layer (S30); forming a mixture by mixing an adhesive composition and a flame retardant composition with the surface layer chips and the midlayer chips (S40); forming a mat by stacking a chip mixture layer for a surface layer, a chip mixture layer for a middle layer, and a chip mixture layer for a surface layer in this order (S50); A step (S60) of preparing a particle board by hot-pressing the laminated mat, and the flame retardant composition includes a carbon compound, a carboxylic acid-based compound, a phosphoric acid-based compound, and a boron-based compound including at least one hydroxyl group.

However, in the fourth prior art, a chip is mixed with an adhesive composition and a flame retardant composition, laminated, and hot-pressed, and the process is never simple, and environmental pollution cannot be avoided due to the adhesive component.

Patent Document 1: Republic of Korea Patent Registration No. 10-1390631 (Method for manufacturing flame retardant wood) Patent Document 2: Republic of Korea Patent Publication No. 10-2016-0124728 (Incombustible waterproof treatment method for wood) Patent Document 3: Republic of Korea Patent Registration No. 10-1905682 (Eco-friendly flame retardant liquid composition for wood and manufacturing method of flame retardant wood, flame retardant wood and semi-non-combustible wood using the composition) Patent Document 4: Korean Patent Registration No. 10-2188403 (Method for manufacturing eco-friendly flame retardant particle board and eco-friendly flame retardant particle board manufactured therefrom)

The present invention is to solve the above problems, the purpose of which is to minimize environmental pollution by using a water-based paint and an environmentally friendly flame retardant liquid by applying a method such as spray to an existing plate, the manufacturing process is simple It is to provide a novel flame retardant color board and its manufacturing method that sufficiently satisfy fire safety standards.

The above object and other additional objects will be clearly recognized by those skilled in the art without departing from the spirit of the present invention by the appended claims.

Method for producing a flame retardant board according to the first aspect of the present invention for solving the above problems is, (a) 1 to 5 parts by weight of triethyl phosphoric acid (Cas # 78-40-0), purified water (Cas # 7732-18- 5) 43 to 62 parts by weight, [nitrilotris (methylene)] triphosphonic acid ammonium salt (Cas # 34274-28-7) 30 to 40 parts by weight, ammonium polyphosphate (Cas # 68333-79-9) 5 to Preparing an eco-friendly phosphoric acid-based flame retardant comprising 15 parts by weight and 2 to 5 parts by weight of isopropyl alcohol (eg Cas # 68440-70-0) (S100); (b) mixing the environmentally friendly phosphoric acid-based flame retardant prepared in step (a) with an aqueous paint, mixing the water-based paint and the flame retardant in a mixing weight ratio of 3: 7 to 7: 3 to prepare a flame retardant paint ( S200); (c) uniformly applying the flame retardant paint obtained in step (b) to a plate (S300); and (d) after step (c), drying the plate material coated with the flame retardant paint (S400); It is characterized in that it includes.

Preferably, in step (b), the mixing weight ratio of the water-based paint and the flame retardant is 4:6 to 6:4.

Also preferably, the coating in the step (c) is characterized in that it is carried out by a spray method.

Also preferably, the board is characterized in that the MDF (Medium Density Fiberboard) plate material.

Also preferably, the board is characterized in that the PB (particle board) plate material.

Also preferably, the board is characterized in that the temper board.

More preferably, the material of the board is characterized in that paper.

Also preferably, after the step (d), attaching a low pressure melamine (LPM) to the flame retardant board; It is characterized in that it further comprises.

According to a second aspect of the present invention, a flame retardant board manufactured by the above method is provided.

According to the flame retardant color board and its manufacturing method according to the present invention, a new flame retardant color board and its manufacturing that sufficiently meet the fire safety standards presented by the National Fire Agency by only applying and drying processes in a method such as spraying on an existing plate material Since the method is possible, a novel flame retardant color board and a manufacturing method thereof, which have a simple manufacturing process and minimize environmental pollution by using water-based paint and environmentally friendly flame retardant liquid, are possible.

Meanwhile, additional features and advantages of the present invention will become more clear through the following description.

1 is a flow chart showing a method for manufacturing flame retardant wood according to a first prior art.
Figure 2a is a process diagram showing a flame retardant waterproof treatment method of wood according to the second prior art.
Figure 2b is a process diagram showing a flame retardant waterproof treatment method of wood according to the third prior art.
Figure 3 is a procedure for the manufacturing method of the environmentally friendly flame-retardant particle board according to the fourth prior art.
Figure 4 is a manufacturing process diagram for the manufacturing method of the flame retardant color board according to the first embodiment of the present invention.
5 is a result of Experimental Example 1-1 of the flame retardant color board according to the first embodiment of the present invention.
Figure 6 is the result of Experimental Example 1-2 of the flame retardant color board according to the first embodiment of the present invention.
7 is a result of Experimental Example 1-3 of the flame retardant color board according to the first embodiment of the present invention.
8 is a result of Experimental Example 2-1 of the flame retardant color board according to the first embodiment of the present invention.
9 is a result of Experimental Example 2-2 of the flame retardant color board according to the first embodiment of the present invention.
10 is the result of Experimental Example 2-3 of the flame retardant color board according to the first embodiment of the present invention.
11 is a result of Comparative Example 1-1 compared to Experimental Example 2-1 of FIG. 8 .
12 is a result of Comparative Example 1-2 compared to Experimental Example 2-2 of FIG. 9 .
13 is a result of Comparative Example 1-3 compared to Experimental Example 2-3 of FIG. 10 .
14 is a photograph of a combustion test result of a conventional color board and a flame retardant color board according to the first embodiment of the present invention.
15 is a manufacturing process diagram for a method for manufacturing a flame retardant color temper board according to a second embodiment of the present invention.
16 is a combustion test result of a conventional color board and a flame-retardant color temper board according to a second embodiment of the present invention.
17 is a photograph of a combustion test result of a conventional color board and a flame-retardant color temper board according to a second embodiment of the present invention.
18a is MSDS summary information of 'triethyl phosphoric acid'.
18B is MSDS summary information of '[nitrilotris(methylene)]triphosphonic acid ammonium salt'.
18c is MSDS summary information of 'ammonium polyphosphate'.
18D is MSDS summary information for a compound with CAS number '68440-70-0', which is a kind of 'isopropyl alcohol'.

The present invention will be described with reference to the accompanying drawings for preferred embodiments.

However, the embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below, and those of ordinary skill in the art can It is provided for complete explanation.

Hereinafter, with reference to the accompanying drawings will be described in detail according to the present invention.

Prior to the detailed description of the present invention, the same or corresponding components in the drawings are given the same reference numerals, and if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Also, in this specification, the examples and embodiments described below are to be considered as illustrative and not restrictive, and the present invention is not limited to the details given herein, but substitutions and equivalents within the scope and equivalents of the appended claims. can be changed to other embodiments

(First embodiment)

First, the flame retardant color board and its manufacturing method according to the first embodiment of the present invention will be described with reference to FIGS. 4 to 14.

Figure 4 is a manufacturing process diagram for the manufacturing method of the flame-retardant color board according to the first embodiment of the present invention.

Figure 5 is the result of Experimental Example 1-1 of the flame-retardant color board according to the first embodiment of the present invention, Figure 6 is the result of Experimental Example 1-2 of the flame-retardant color board according to the first embodiment of the present invention, 7 is a result of Experimental Example 1-3 of the flame retardant color board according to the first embodiment of the present invention.

Figure 8 is the result of Experimental Example 2-1 of the flame-retardant color board according to the first embodiment of the present invention, Figure 9 is the result of Experimental Example 2-2 of the flame-retardant color board according to the first embodiment of the present invention, 10 is the result of Experimental Example 2-3 of the flame retardant color board according to the first embodiment of the present invention.

11 is a result of Comparative Example 1-1 compared to Experimental Example 2-1 of FIG. 8, FIG. 12 is a result of Comparative Example 1-2 compared to Experimental Example 2-2 of FIG. 9, and FIG. It is the result of Comparative Example 1-3 compared with Experimental Example 2-3 of 10.

14 is a photograph of a combustion test result of a conventional color board and a flame retardant color board according to the first embodiment of the present invention.

First, as shown in Figure 4, as shown in [Table 1], an eco-friendly phosphoric acid-based flame retardant (flame retardant solution) is prepared (S100), triethyl phosphate (Cas # 78-40-0) 1 to 5 weight Part, purified water (Cas # 7732-18-5) 43 ~ 62 parts by weight, [nitrilotris (methylene)] triphosphonic acid ammonium salt (Cas # 34274-28-7) 30 ~ 40 parts by weight, ammonium polyphosphate ( Cas # 68333-79-9) 5 to 15 parts by weight and isopropyl alcohol (for example, Cas # 68440-70-0) 2 to 5 parts by weight, to which a small amount of a surfactant or the like may be added. can

For reference, the CAS numbers of the constituents excluding the purified water above are compounds of the 'KOREA MSDA SYSTEM' (https://msds.kosha.or.kr/) of the 'Korea Occupational Safety and Health Agency'. Based on the information, MSDS summary information of each component is attached as FIGS. 18A to 18D. In particular, since the compound of CAS number '68440-70-0' is a type of isopropyl alcohol, they are used interchangeably in the present specification, and the compound of CAS number '68440-70-0' is not necessarily used. Isopropyl alcohol may also be used.

Then, the environmentally friendly phosphoric acid-based water-soluble flame retardant is mixed with a water-based paint to prepare a flame-retardant paint (S200), the mixing weight ratio of the water-based paint and the flame retardant is 3:7 to 7:3, and preferably 4:6 to 6:4, most preferably 5:5.

Now, the mixture of the water-based paint and the flame retardant is uniformly applied to the plate (S300), preferably by spraying to increase uniformity.

Finally, by drying the plate material to which the mixed solution is applied (S400), the flame retardant color board according to the first embodiment of the present invention is obtained.

designation CAS NO. Remarks (parts by weight) Triethyl Phosphate 78-40-0 1 to 5 WATER 7732-18-5 43 to 62 Phosphonic acid, [Nitrilotris(methylene)]tris-, Ammonium Salt 34274-28-7 30 to 40 Ammonium polyphosphate 68333-79-9 5 to 15 Isoprophyl Alcohol 68440-70-0 2 to 5

(Experimental Example 1)

First, unlike the immersion method of the prior art, the surface coating method of the present invention is a method of applying thinly to the surface and drying it, so it is important to ensure uniformity of application. Accordingly, in Experimental Example 1, an application amount test of the flame retardant paint was conducted.

Triethyl phosphoric acid (Cas # 78-40-0) 3 parts by weight, purified water (Cas # 7732-18-5) 52 parts by weight, [nitrilotris (methylene)] triphosphonic acid ammonium salt (Cas # 34274-28- 7) 33 parts by weight, 8 parts by weight of ammonium polyphosphate (Cas # 68333-79-9) and 4 parts by weight of isopropyl alcohol (e.g. Cas # 68440-70-0), to which a small amount of surfactant is added After preparing a flame retardant paint by mixing the flame retardant and the water-based paint in a ratio of 5: 5, the flame retardant paint was uniformly applied and dried to an MDF plate having a size of 1220 * 2440 mm by an automatic spray method to prepare a flame retardant color board.

In more detail, the flame retardant treatment is performed on MDF with a size of 1220 * 2440 mm, and the size of each specimen is divided into 16 equal parts with a size of 500 * 200 mm (because the area of the saw blade must be excluded), each specimen ( 500 * 200 mm size specimen) was measured before coating, and then the final weight after automatic spray flame-retardant painting and drying was measured. That is, the coating amount is measured during flame retardant coating on the surface of MDF 1220*2440. At this time, in order to measure the distribution change in the entire area (that is, to avoid being biased to a specific location), a 500*200 mm size specimen is again During the flame retardant test, a specimen with a size of 190 * 290 mm is randomly cut and inspected, and the actual solid content after drying according to the flame retardant pass standard is calculated. In all cases, good results were obtained with a standard deviation of less than 1 g per sheet.

(Experimental Example 2)

Now, with respect to flame retardant performance, which is the core of the present invention, in the case of attaching a medium density fiberboard (MDF) plate, a particle board (PB) plate, and a low pressure melamine (LPM) to an MDF plate, the above Tests were conducted with and without the flame retardant treatment of Example 1.

(Experimental Example 2-1)

First, after the flame retardant treatment was performed on an MDF plate with a size of 1220 * 2440 mm as in Experimental Example 1, the size of each specimen was divided into 16 equal parts with a size of 500 * 200 mm, and each specimen was again divided into specimens with a size of 190 * 290 mm. A flame retardant test was conducted by randomly cutting it.

In more detail, a smoke density test was performed on the above flame retardant MDF plate specimens according to 'ASTM E 662' standard. For reference, the experiment was conducted in the 25 kW/m 2 flaming mode, the temperature was (20.0 ± 15.0) ℃, and the humidity (50 ± 30) R.H. , and more detailed conditions are shown in the experimental conditions of FIG.

In addition, in accordance with the provisions of Article 7 (Coating of anti-combustion paint) No. 3 Item E of "Fire Safety Standards for Combustion Prevention Equipment" announced by the National Fire Agency, whether or not the maximum smoke density is 400 or less was used as the acceptance criterion.

(Experimental Example 2-2)

It is the same as Experimental Example 2-1, except that a PB (Particle Board) plate was used instead of the MDF plate. More detailed experimental conditions are shown in FIG. 9 .

(Experimental Example 2-3)

This is a case in which LPM (Low pressure melamine, low pressure melamine decorative board) is attached on the flame retardant MDF of Experimental Example 2-1, wherein the LPM is a general LPM, not a flame retardant treatment. More detailed experimental conditions are shown in FIG. 10 .

(Comparative Example 1-1 to Comparative Example 1-3)

Comparative Example 1-1 to Comparative Example 1-3 were the same as Experimental Example 2-1 to Experimental Example 2-3, respectively, except that no flame retardant treatment was performed. Again, more detailed experimental conditions are shown in FIGS. 11 to 13 , respectively.

fin material type maximum smoke density Pass or fail (<400) Experimental example 2-1 Fire Retardant MDF 301.75 ○ Experimental Example 2-2 flame retardant PB 270.00 ○ Experimental example 2-3 Fire retardant MDF and regular LPM 329.71 ○ Comparative Example 1-1 Plain MDF 450.71 × Comparative Example 1-2 Normal PB 451.44 × Comparative Example 1-3 Normal MDF and Normal LPM 497.41 ×

As shown in Experimental Example 2-1 and Comparative Example 1-1, in the case of MDF, the maximum smoke density was improved by about 150 when the flame retardant treatment of the present invention was applied and not, and Experimental Example 2-2 and Comparative Example 1 As shown in -2, in the case of PB, the maximum smoke density was improved by about 180 when the flame retardant treatment of the present invention was applied and when it was not. Although the smoke density reached nearly 500, the flame retardant performance could not be exhibited at all. However, when the flame retardant treatment of the present invention was applied only to MDF, even when a general LPM without flame retardant treatment was used, the maximum smoke density was less than 400 and the flame retardant performance could be exhibited. There was (the maximum smoke density was reduced from '497' in Comparative Example 1-3 to '329' in Experimental Example 2-3 and improved to '168').

Additionally, such flame retardant performance can be confirmed by the actual photograph of FIG. 14, FIG. 14 (a) is the combustion test result for general MDF, and FIG. 14 (b) is the first embodiment of the present invention. This is the result of the combustion test for MDF according to

As described above, according to the method for manufacturing a flame retardant color board according to the first embodiment of the present invention, i) has the advantage of sufficiently exhibiting flame retardant performance even by a very simple method by surface application, ii) Possible even if a water-based paint is used Therefore, it is environmentally friendly, and iii) the cost could be reduced by about 50% compared to the conventional immersion method using flame retardant MDF or flame retardant adhesive, and the method using flame retardant LPM.

(Example 2)

Meanwhile, the flame retardant color board and its manufacturing method according to the second embodiment of the present invention will be described with reference to FIGS. 15 to 17.

15 is a manufacturing process diagram for a method of manufacturing a flame retardant color temper board according to a second embodiment of the present invention, and FIG. 16 is a combustion test result of a conventional color board and a flame retardant color temper board according to a second embodiment of the present invention 17 is a photograph of a combustion test result of a conventional color board and a flame-retardant color temper board according to a second embodiment of the present invention.

In this second embodiment, the same flame retardant treatment as in the first embodiment is performed on the so-called 'temper board' in which concave-convex stripes are put on a paper board.

Referring to the manufacturing method of the flame retardant color board of the second embodiment of the present invention with reference to FIG. 15, therefore, compared to the method of the first embodiment, the step of mixing the water-based paint and the flame retardant (step S200) and the step of applying the mixed solution to the board It is different in that a temper processing process (S500) is added between (step S300). Of course, you may advance the said temper processing process beforehand.

(Experimental Example 3)

Now, finally, the flame retardant color temper board according to the second embodiment was subjected to the same combustion test and smoke density test as in Experimental Example 2.

(Experimental Example 3-1)

The same test as in Experimental Example 2-1 was performed on the flame-retardant temper board (FSR9) subjected to vertical stripe processing.

(Experimental Example 3-2)

The same test as in Experimental Example 2-1 was performed on the flame-retardant temper board (FSBR9) in which stripes were processed in the vertical direction.

(Experimental Example 3-3)

The same test as in Experimental Example 3-1 was performed on the flame-retardant temper board (FSR9) subjected to stripe processing in the horizontal direction.

(Experimental Example 3-4)

The same test as in Experimental Example 3-2 was performed on the flame-retardant temper board (FSBR9) in which stripes were processed in the horizontal direction.

(Comparative Example 2-1)

The same test as in Experimental Example 2-1 was performed on the flame-retardant temper board (FSGY-L9) in which the stripes were processed in the vertical direction.

(Comparative Example 2-1)

For the flame-retardant temper board (FSGY-L9) subjected to stripe processing in the horizontal direction, the same test as in Experimental Example 2-2 was performed.

fin material type maximum smoke density Pass or not (carbonization) Experimental Example 3-1 Flame Retardant Tempered Board (Vertical Stripes) 323.57 ○ (See Fig. 17 (a)) Experimental Example 3-2 Flame Retardant Tempered Board (Vertical Stripes) 252.32 ○ (See Fig. 17(b)) Comparative Example 2-1 Normal temper board (vertical stripes) 320.53 × (see Fig. 17(c)) Experimental example 3-3 Flame Retardant Tempered Board (horizontal stripe) 240.95 ○ (See FIG. 17(d)) Experimental Example 3-4 Flame Retardant Tempered Board (horizontal stripe) 209.46 ○ (See FIG. 17(e)) Comparative Example 2-2 Normal temper board (horizontal stripe) 322.65 × (see Fig. 17(f))

In this experimental example, due to the characteristics of the temper board made of paper, both the experimental and comparative examples had a maximum smoke density of 400 or less.

Moreover, in Experimental Example and Comparative Example, in some cases, there was no substantial difference in maximum smoke density (in the case of Experimental Example 3-1 and Comparative Example 2-1, both were approximately 320, which is substantially the same within the error range). box).

However, as shown in (a), (b), (d) and (e) of FIG. 17, in the temper board made of paper material treated with flame retardant according to the second embodiment of the present invention, fire extinguished immediately during the combustion experiment ( Although it was not carbonized to such an extent that only the surface was scorched as a result of burning fire (no cracking, which is characteristic of carbonization, or only faintly appeared), as shown in FIG. 17 (c) and (f), the flame retardant according to the comparative example In the temper board made of untreated paper material, it was completely carbonized due to long-term combustion (a number of clear cracks occurred along the horizontal / vertical stripes of the temper board across the horizontal / vertical stripes).

That is, even in the case of the temper board made of paper in the second embodiment, when flame retardant treatment is performed, it has a feature that fire extinguishing is performed immediately to the extent that carbonization is not performed.

That is, in the above, the present invention has been described according to an embodiment of the present invention, but changes and modifications made by those skilled in the art within the scope not departing from the technical spirit of the present invention are also included in the present invention. Belonging is natural.

Claims (7)

As a method for manufacturing a flame retardant board,
(a) 1 to 5 parts by weight of triethyl phosphoric acid (Cas # 78-40-0), 43 to 62 parts by weight of purified water, [nitrilotris (methylene)] triphosphonic acid ammonium salt (Cas # 34274-28-7) Preparing an eco-friendly phosphoric acid-based flame retardant comprising 30 to 40 parts by weight, 5 to 15 parts by weight of ammonium polyphosphate (Cas # 68333-79-9) and 2 to 5 parts by weight of isopropyl alcohol (S100);
(b) mixing the environmentally friendly phosphoric acid-based flame retardant prepared in step (a) with an aqueous paint, mixing the water-based paint and the flame retardant in a mixing weight ratio of 3: 7 to 7: 3 to prepare a flame retardant paint ( S200);
(c) uniformly applying the flame retardant paint obtained in step (b) to a plate (S300); and
(d) after the step (c), drying the plate material coated with the flame retardant paint (S400);
Method for manufacturing a flame retardant board comprising a. According to claim 1,
In the step (b), the method of manufacturing a flame retardant board, characterized in that the mixing weight ratio of the water-based paint and the flame retardant is 4: 6 to 6: 4. According to claim 1,
The coating in step (c) is a method of manufacturing a flame retardant board, characterized in that carried out by a spray method. According to claim 1,
The method of manufacturing a flame retardant board, characterized in that the board is a medium density fiberboard (MDF) or particle board (PB) plate material. According to claim 1,
The method of manufacturing a flame retardant board, characterized in that the board is a paper temper board. According to claim 1,
After the step (d), attaching a low pressure melamine (LPM) to the flame retardant board;
Method for manufacturing a flame retardant board, characterized in that it further comprises. A flame retardant board manufactured according to any one of claims 1 to 6.