KR101162766B1 - Eco-friendly wood board with improved functionality using vermiculite and method of manufacturing the same - Google Patents

Abstract

PURPOSE: An environmentally-friendly wood board and a manufacturing method thereof are provided to enhance noncombustibility, sound absorption property, soundproof construction, and antibiosis. CONSTITUTION: An environmentally-friendly wood board comprises a wood sheet(100), a bonding layer(200), a vermiculite mixture layer(300), a UV coating layer, a UV base coat layer(410), a UV mid coat layer, and UV high-glossy(430). The bonding layer is formed by spreading aqueous adhesive on a wood sheet. The vermiculite mixture layer is formed by spraying or spreading a mixture including inorganic bio binder composition and vermiculite powder material on the bonding layer. The UV coating layer(400) is formed on the vermiculite mixture layer. The UV base coating layer is formed by spreading a first UV coating solution. The UV mid coat layer(420) is formed by spreading a second UV coating solution on the top surface of the UV base coat layer. The UV high-glossy is formed on top surface of the UV mid coat layer.

Description

Eco-friendly wood board with excellent vermiculite and its manufacturing method {ECO-FRIENDLY WOOD BOARD WITH IMPROVED FUNCTIONALITY USING VERMICULITE AND METHOD OF MANUFACTURING THE SAME}

The present invention relates to a wooden board, and more particularly to an eco-friendly wooden board and a manufacturing method thereof having excellent functionality using vermiculite.

Interior finishing materials for building are used to finish and decorate the interior of the building, it is used in a broad sense including a variety of materials, such as wood, glass, among which wooden boards used for the ceiling or wall is one of the typical finishing materials. Such built-in finishing materials for buildings, although the functionality to be emphasized may vary slightly depending on where it is installed, basically all of the following functionality must be satisfied.

First, building interior finishes must be non-combustible and non-combustible in the event of a fire, and must not generate toxic fumes even if ignited. Secondly, building interior finishes must have good sound absorption and sound insulation to prevent the generation or transmission of noise.

In recent years, people's interest in well-being has also affected residential space, and it is also an important item whether the interior finishing material for building is an eco-friendly material that does not contain heavy metals or harmful components. It is also evaluated as an important item of functionality.

However, many architectural interior finishes currently on the market, especially wood boards, do not meet all of these various functionalities, and thus have limitations in their use. That is, if the non-flammability is excellent, the sound absorption is inferior, if the excellent sound absorption is non-combustible, there is no choice but to consider the functionality to be emphasized more at the place to be installed. Therefore, the space in which the non-combustible finishing material is installed is not safe from the danger of fire, and the space in which the sound-absorbing finishing material is installed is easily exposed to noise, thereby reducing stress or work efficiency.

Vermiculite, on the other hand, is a clay mineral composed of hydroxides of aluminum, magnesium and iron. Hardness is 1 ~ 2, soft, specific gravity is 2.76, and it is widely used in insulation, chemical, agricultural and fisheries fields of buildings due to its good absorption ability in porous structure, but production of wooden board using such vermiculite is still insufficient. .

As a result of the above, the development of a wooden board that meets all the functionalities required as non-combustible, sound-absorbing, and antimicrobial finishes, especially in wooden boards, has become an important task, and manufacturing such a wooden board using vermiculite Is of interest.

The present invention has been proposed to solve the above problems of the conventionally proposed methods, the wood sheet 100, the adhesive layer 200 formed on the wooden sheet 100, vermiculite formed on the adhesive layer 200 By including the mixture layer 300 and the UV coating layer 400 formed on the vermiculite mixture layer 300, it is environmentally friendly and excellent in functionality of vermiculite, excellent in all non-combustibility, sound absorption, sound insulation and antibacterial functionality. The purpose is to provide an eco-friendly wood board.

In addition, the present invention, (1) finely pulverizing vermiculite, finely crushed vermiculite is heated to foam expansion to prepare a vermiculite powder, (2) a vermiculite powder and inorganic biobinder composition is stirred to prepare a vermiculite mixture (3) applying an aqueous adhesive to the wood sheet to form an adhesive layer, (4) applying or spraying a vermiculite mixture on the adhesive layer to form a vermiculite mixture layer, and (5) on the vermiculite mixture layer By forming a UV coating layer, it is possible to manufacture a wood board excellent in both non-flammable, sound-absorbing, sound-absorbing and antimicrobial functionality while being environmentally friendly using an inorganic binder composition containing no heavy metals, functionality using vermiculite Another object is to provide this excellent environmentally friendly wood board manufacturing method.

Eco-friendly wood board with excellent functionality using vermiculite according to the characteristics of the present invention for achieving the above object,

Wood sheet 100;

An adhesive layer formed by applying an aqueous adhesive on the wood sheet 100;

Vermiculite mixture layer 300 formed by spraying or applying a mixture of vermiculite powder and inorganic biobinder composition on the adhesive layer 200; And

It characterized in that it comprises a UV coating layer 400 formed on the vermiculite mixture layer 300.

Preferably, the wood sheet 100,

It may be veneer, MDF (Medium Density Fibreboard) or PB (Particle board).

Preferably, the inorganic bio binder composition,

65 wt% sodium silicate, 25 wt% bismuth compound, 15 wt% antimony trioxide.

More preferably, the bismuth compound,

Bismuth octonate, bismuth naphthenate, bismuth propionate, bismuth maleate, bismuth neothecanoid and bismuth neopentanoid.

Preferably, the aqueous adhesive,

49.9 to 54.9% by weight of urea resin and 45 to 50% by weight of water.

Preferably, the UV coating layer 400

A UV undercoat 410 formed by applying a first UV coating solution;

A UV intermediate layer 420 formed by applying a second UV coating solution on the upper surface of the UV underlayer 410; And

The UV intermediate layer 420 may include a UV high gloss 430 formed on the top surface.

Eco-friendly wood board manufacturing method excellent in functionality using vermiculite according to the characteristics of the present invention for achieving the above another object,

(1) pulverizing vermiculite ore finely, and heating and foaming the pulverized vermiculite ore to prepare vermiculite powder;

(2) preparing the vermiculite mixture by stirring the vermiculite powder and the inorganic biobinder composition;

(3) applying an aqueous adhesive to the wood sheet to form an adhesive layer;

(4) applying or spraying the vermiculite mixture on the adhesive layer to form a vermiculite mixture layer; And

(5) characterized in that it comprises a step of forming a UV coating layer on the vermiculite mixture layer.

Preferably, in the step (1)

The vermiculite can be pulverized to 0.2 ~ 2.0 mm, heated to 850 ~ 1,200 ℃ can be expanded and expanded.

Preferably, in the step (3)

The aqueous adhesive can be applied to a thickness of 20 ~ 80㎛.

Preferably, the step (5) is,

(5-1) applying a wood sheet with a first UV coating liquid to form a UV undercoat layer;

(5-2) applying the upper surface of the UV undercoat layer with a second UV coating solution to form a UV intermediate layer;

(5-3) UV hygroscopic coating of the upper surface of the UV intermediate layer; And

(5-4) may comprise a drying step.

According to the eco-friendly wood board using excellent vermiculite proposed in the present invention, the wood sheet 100, the adhesive layer 200 formed on the wood sheet 100, the vermiculite mixture layer formed on the adhesive layer 200 ( 300), and by including a UV coating layer 400 formed on the vermiculite mixture layer 300, it can be excellent in both environmentally friendly and non-combustible, sound-absorbing, sound-absorbing and antibacterial functionality.

In addition, according to the present invention, (1) finely pulverizing vermiculite ore, and heating and swelling the pulverized vermiculite ore to prepare a vermiculite powder, (2) stirring the vermiculite powder and inorganic biobinder composition to prepare a vermiculite mixture Manufacturing, (3) applying an aqueous adhesive to a wood sheet to form an adhesive layer, (4) applying or spraying a vermiculite mixture on the adhesive layer to form a vermiculite mixture layer, and (5) on the vermiculite mixture layer Including the step of forming a UV coating, by using an inorganic binder composition containing no heavy metal, it is possible to manufacture a wood board that is both environmentally friendly and excellent in non-flammability, sound absorption, sound insulation and antibacterial functionality.

1 is a view showing a cross section of the eco-friendly wood board 10 with excellent functionality using vermiculite according to an embodiment of the present invention.
2 is a view showing a detailed configuration of the UV coating layer 400 in the eco-friendly wood board 10 with excellent functionality using vermiculite in accordance with an embodiment of the present invention.
Figure 3 is a flow chart of an eco-friendly wood board manufacturing method excellent in functionality using vermiculite according to an embodiment of the present invention.
Figure 4 is a view showing the detailed flow of the step S500 in the eco-friendly wood board manufacturing method excellent in functionality using vermiculite according to an embodiment of the present invention.
5 is a view showing the reverberation chamber method sound absorption measurement results of the eco-friendly wood board 10 with excellent functionality using vermiculite according to an embodiment of the present invention.
Figure 6 is a view showing the air transmission sound blocking performance test results of the eco-friendly wood board 10 excellent functionality using vermiculite in accordance with an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the drawings, like reference numerals are used throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . In addition, the term 'comprising' of an element means that the element may further include other elements, not to exclude other elements unless specifically stated otherwise.

1 is a view showing a cross-section of the eco-friendly wood board 10 with excellent functionality using vermiculite according to an embodiment of the present invention. As shown in FIG. 1, the eco-friendly wood board 10 having excellent functionality using vermiculite according to an embodiment of the present invention is a wood sheet 100, an adhesive layer 200, a vermiculite mixture layer 300, and a UV coating layer ( 400).

Meanwhile, for convenience of description, FIG. 1 illustrates that the adhesive layer 200, the vermiculite mixture layer 300, and the UV coating layer 400 are formed only on one surface of the wood sheet 100, but are not limited thereto. According to an example, it may be implemented to be formed on both sides of the wood sheet (100).

Wood sheet 100 is preferably used to produce a natural wood veneer, but not limited to this, depending on the embodiment may be used MDF (Medium Density Fiberboard), PB (Particle board) and the like.

The adhesive layer 200 is a layer formed by applying an adhesive on the wood sheet 100 to form the vermiculite mixture layer 300 to be described later, and it is preferable to use an aqueous adhesive, more specifically, the aqueous adhesive is urea resin. 49.9-54.9% by weight and 45-50% by weight of water.

The vermiculite mixture layer 300 is a layer formed by spraying or applying a mixture of vermiculite powder and an inorganic biobinder composition on the adhesive layer 200, and thus, the wood board 10 has all of non-combustibility, sound insulation, sound absorption and antibacterial properties. Can be excellent.

Vermiculite powder may be prepared by pulverizing vermiculite, which is an expandable mineral, finely, and then heating and foaming it. In addition, the inorganic biobinder composition may include sodium silicate, bismuth compounds, and antimony trioxide, and more specifically, 65% by weight of sodium silicate, 25% by weight of bismuth compound, and 15% by weight of antimony trioxide. It is preferable.

It is preferable that a bismuth compound is contained in an inorganic binder composition so that metal conversion amount of a bismuth compound may be 0.5 to 4.0 weight% as a hardening accelerator. Moreover, the bismuth compound is a bismuth carboxyl salt in which bismuth is bound to an organic acid in the form of a salt complex, more specifically, bismuth octonate, bismuth naphthenate, bismuth propionate, bismuth maleate, bismuth neothecanoid and bismuth neopenta It is preferably selected from the group consisting of noids.

UV coating layer 400 is a layer formed on the vermiculite mixture layer 300, Figure 2 is an eco-friendly wood board 10 with excellent functionality using vermiculite in accordance with an embodiment of the present invention, the UV coating of the 400 It is a figure which shows the detailed structure. As shown in FIG. 2, the UV coating layer 400 may include a UV undercoat 410, a UV intermediate layer 420, and a UV hygroscopic 430.

That is, the UV undercoat 410 is formed by applying the first UV coating solution on the vermiculite mixture layer 300, and the UV intermediate layer 420 is a portion on the wood sheet 100 that the first UV coating solution has not yet applied. It may be formed by applying a second UV coating liquid to the upper surface of the UV undercoat 410 to fill the. Thereafter, the UV high gloss 430 is formed on the upper surface of the UV intermediate layer 420, so that the surface of the wood board 10 may be smooth and glossy.

Next, the manufacturing method of the wood board configured as described above is as follows.

That is, Figure 3 is a view showing a flow chart of an eco-friendly wood board manufacturing method excellent in functionality using vermiculite according to an embodiment of the present invention. As shown in Figure 3, the eco-friendly wood board manufacturing method having excellent functionality using vermiculite according to an embodiment of the present invention, the vermiculite is finely ground, and the pulverized vermiculite is heated to foam expansion to produce vermiculite powder Step (S100), stirring the vermiculite powder and the inorganic bio binder composition to prepare a vermiculite mixture (S200), applying an aqueous adhesive to the wood sheet to form an adhesive layer (S300), applying the vermiculite mixture on the adhesive layer Or spraying to form a vermiculite mixture layer (S400), and forming a UV coating layer on the vermiculite mixture layer (S500).

In step S100, the vermiculite is finely pulverized using a grinder, and then heated and foamed and expanded to 10 to 20 times its original volume, thereby preparing vermiculite powder. More specifically, vermiculite is preferably pulverized to a size of 0.2 to 2.0 mm, and pulverized vermiculite is preferably heated at a temperature of 850 to 1,200 ° C. Vermiculite powder prepared through step S100 may include 100% by weight of expanded vermiculite relative to the total weight of vermiculite powder.

In step S200, the vermiculite mixture may be prepared by adding the vermiculite powder and the inorganic biobinder composition prepared in step S100 to a stirrer and stirring the mixture. As described above, the inorganic biobinder composition preferably contains 65% by weight sodium silicate, 25% by weight bismuth compound, and 15% by weight antimony trioxide, and the bismuth compound is bismuth octonate, bismuth naphthenate, bismuth propionate. It is preferably selected from the group consisting of bismuth maleate, bismuth neothecanoid and bismuth neopentanoid.

Step S300 may be performed by preparing a wooden sheet and applying an aqueous adhesive agent to the prepared wooden sheet, and more preferably, applying the aqueous adhesive agent to the wooden sheet with a thickness of 20 to 80 μm. As described above, the wood sheet may use veneer, MDF (Medium Density Fibreboard), PB (Particle board), and the aqueous adhesive may include 49.9 to 54.9% by weight of urea resin and 45 to 50% by weight of water.

Step S400 may be performed by applying or spraying the vermiculite mixture prepared through step S200 on the adhesive layer formed through step S300.

In step S500 it can form a UV coating layer by UV coating on the vermiculite mixture layer formed through step S400, Figure 4 is an eco-friendly wood board manufacturing method excellent in functionality using vermiculite according to an embodiment of the present invention, step S500 The detailed flow of FIG. As shown in Figure 4, step S500 of the eco-friendly wood board manufacturing method having excellent functionality using vermiculite in accordance with an embodiment of the present invention is a step of applying a wooden sheet with a first UV coating liquid to form a UV undercoat (S510) ), Coating the upper surface of the UV undercoat layer with a second UV coating liquid to form a UV intermediate layer (S520), UV high-gloss coating the upper surface of the UV intermediate layer (S530), and drying step (S540) Can be implemented.

That is, in step S500, after coating the wood sheet with the first UV coating liquid to form a UV undercoat layer, the first UV coating liquid is coated with a second UV coating liquid to fill a portion of the wood that has not yet been applied to form a UV intermediate layer. can do. This can then be done by UV hygroscopic coating and drying using a UV lamp.

The present invention is described in more detail by the following examples, but the present invention is not limited in any way by the following examples.

Wood board manufacturer

Vermiculite is finely pulverized to 0.8 mm using a pulverizer and heated to 1100 ° C. to expand and expand to form vermiculite powder, which is 65% by weight of sodium silicate, 25% by weight of bismuth octonate, and 15% by weight of antimony trioxide. Vermiculite mixture was prepared by stirring with an inorganic bio-binder composition comprising. Next, an aqueous adhesive comprising 50% by weight of urea resin and 50% by weight of water is applied to the veneer, and then the vermiculite mixture is applied, and the first UV coating liquid and the second UV coating liquid are sequentially applied. After application, wood boards were made by applying UV hygroscopic coating and drying with a UV lamp.

Hereinafter, the effects of the present invention will be described in more detail through experimental examples, but the scope of the present invention is not limited by the following experimental examples.

[Experimental Example 1]

Property evaluation

The physical properties (density, thermal conductivity, compressive strength, flexural strength) of the wood board manufactured through Example 1 were measured, and the results are shown in Table 1.

Test Items unit result Test Methods density ㎏ / ㎥ 589 KS L 9016: 2005 Thermal conductivity W / (mK) 0.150 KS L 9016: 2005
(Plate heat flow method) Compressive strength Mpa 181 Universal Testing Machine
(INSTRON, 5585 100 kN) Flexural strength Mpa 1.58 Universal Testing Machine
(INSTRON, 5585 100 kN)

[Experimental Example 2]

Incombustibility test

In order to confirm the nonflammable effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention, the experiment was carried out as follows. That is, the wood board manufactured in Example 1 was measured according to KS F ISO 1182: 2004 prescribed by the Ministry of Construction and Transportation (%) and the difference between the maximum temperature and the final equilibrium temperature (℃), and the results are shown in the table. 2 is shown.

Test Items result Criteria One 2 3 % Of mass loss 4.0 3.8 3.9 30 or less Difference between maximum temperature and final equilibrium temperature (℃) 0.9 0.7 0.6 Shall not exceed 20

As shown in Table 2, it was confirmed that the wood board according to the present invention has excellent non-combustibility and meets the criteria of non-combustible materials.

[Experimental Example 3]

Gas Hazard Test

In order to check the gas-hazardous effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention was carried out as follows. That is, the wooden board manufactured in Example 1 was measured according to KS F 2271: 2006 prescribed by the Ministry of Construction and Transportation (min: s), the results are shown in Table 3.

Test Items result Criteria One 2 3 Stop time for action
(min: s) 13:58 14:15 - 9:00 or more

As shown in Table 3, it was confirmed that the wood board according to the present invention had a significant performance in gaseous hazards and was suitable for the criteria of non-combustible materials.

[Experimental Example 4]

Far infrared ray emission test

In order to check the far-infrared emission effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention was carried out as follows. That is, the emissivity and the radiant energy of the black board compared to the black body were measured using an FT-IR spectrometer according to the KICM-FIR-1005 measuring method of the wood board manufactured in Example 1, and the result Table 4 shows.

Test Items Test result Emissivity
(5 ~ 20㎛) 0.923 Radiant energy
(W / ㎡) 3.72 × 10 ²

As shown in Table 4, the wood board according to the present invention was confirmed to have an excellent far-infrared emission effect.

[Experimental Example 5]

Deodorization test

In order to confirm the deodorizing effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention, the experiment was carried out as follows. That is, the deodorization rate (%) over time according to the KICM-FIR-1085 measurement method for the wood board manufactured in Example 1 was measured, and the results are shown in Table 5.

Deodorization test (HCHO) Elapsed time (minutes) Blank concentration (ppm) Sample concentration (ppm) Deodorization rate (%) 0 82 82 - 30 79 20 74.7 60 76 11 85.5 90 73 6 91.8 120 70 5 92.9

As shown in Table 5, the wood board according to the present invention effectively removes the odor even after about 30 minutes, it was confirmed that the deodorizing effect is very excellent.

Experimental Example 6

Antibacterial test

In order to check the antibacterial effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention was carried out as follows. That is, the wood board manufactured according to Example 1 was subjected to an antibacterial test using Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 15442 according to the KICM-FIR-1002 method, and the results are shown in Table 6. Indicated.

Test Items Initial concentration
(CFU / 40p) Concentration after 24 hours (CFU / 40p) Bacterial reduction rate
(%) Escherichia coli BLANK 415 2829 - Example 1
Wood board 415 414 0.2 Pseudomonas aeruginosa BLANK 429 2924 - Example 1
Wood board 429 428 0.2

As shown in Table 6, it was confirmed that the wood board according to the present invention has an excellent antibacterial effect.

Experimental Example 7

Reverberation chamber  Sound absorption rate test

In order to confirm the sound-absorbing effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention, the experiment was carried out as follows. That is, the reverberation time and the sound absorption coefficient of the wood board manufactured in Example 1 were measured by KS F 2805: 2004 and ISO 354: 2003, and the noise reduction coefficient (NRC) and the sound absorption average (Sound Absorption Average) were measured. , SAA) was calculated and the results are shown in Table 7 and FIG. 5.

1/3 octave band center frequency reverberating time Sound absorption Before installation after installing 100 13.47 12.37 0.02 125 10.13 9.04 0.04 160 8.39 7.43 0.05 200 7.69 6.64 0.07 250 9.40 7.26 0.10 315 9.62 6.89 0.14 400 9.41 5.91 0.21 500 7.69 4.88 0.26 630 7.60 5.20 0.22 800 7.89 5.67 0.19 1000 7.62 5.68 0.18 1250 6.97 5.33 0.18 1600 6.08 4.74 0.18 2000 5.67 4.38 0.19 2500 5.18 3.90 0.21 3150 4.39 3.39 0.19 4000 3.72 2.94 0.15 5000 2.70 2.18 0.12 NRC = 0.20
SAA = 0.18

As shown in Table 7 and Figure 5, the wooden board according to the present invention has a sound absorption coefficient (NRC) of 0.20 and a sound absorption average (SAA) of 0.18 bar, it was confirmed that the sound absorption effect is excellent.

Experimental Example 8

air Sound  Blocking performance experiment

In order to check the sound insulation effect of the eco-friendly wood board with excellent functionality using vermiculite according to the present invention, the experiment was carried out as follows. That is, the wood board manufactured according to Example 1 was measured for the Sound Transmission Loss (STL) according to the method of KS F 2808: 2001, ISO 140-3: 1995 and ASTM E 90-04: 2004, and through this, STC (Sound Transmission) was calculated Class) and _W R (Weighted Sound Reduction Index), the results are shown in Table 8 and Fig.

1/3 octave band center frequency Result STL STC R _W 100 19.5 - 8 125 22.4 11 11 160 19.1 14 14 200 19.6 17 17 250 21.6 20 20 315 22.1 23 23 400 21.9 26 26 500 22.2 27 27 630 24.2 28 28 800 26.2 29 29 1000 27.9 30 30 1250 28.2 31 31 1600 27.9 31 31 2000 28.4 31 31 2500 30.1 31 31 3150 32.1 31 31 4000 33.0 31 - STC = 27㏈
R _W (C; Ctr) = 27 (0: -2)

As shown in Table 8 and Figure 6, it was confirmed that the wood board according to the present invention has an excellent sound insulation effect.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics of the invention.

10: eco-friendly wooden board with excellent functionality using vermiculite according to an embodiment of the present invention
100: wood sheet 200: adhesive layer
300: vermiculite mixture layer 400: UV coating layer
410: UV sublayer 420: UV intermediate layer
430: UV high gloss
S100: finely crushing vermiculite ore, and heating and foaming the pulverized vermiculite ore to prepare vermiculite powder
S200: preparing vermiculite mixture by stirring vermiculite powder and inorganic biobinder composition
S300: applying an aqueous adhesive to the wood sheet to form an adhesive layer
S400: applying or spraying the vermiculite mixture on the adhesive layer to form the vermiculite mixture layer
S500: forming a UV coating layer on the vermiculite mixture layer
S510: applying a wood sheet with a first UV coating liquid to form a UV undercoat
S520: applying a top surface of the UV undercoat layer with a second UV coating solution to form a UV intermediate layer
S530: UV high gloss coating on the upper surface of the UV middle layer
S540: drying step

Claims (10)

Wood sheet 100;
An adhesive layer formed by applying an aqueous adhesive on the wood sheet 100;
Vermiculite mixture layer 300 formed by spraying or applying a mixture of vermiculite powder and inorganic biobinder composition on the adhesive layer 200; And
Including the UV coating layer 400 formed on the vermiculite mixture layer 300,
The UV coating layer 400,
A UV undercoat 410 formed by applying a first UV coating solution;
A UV intermediate layer 420 formed by applying a second UV coating solution on the upper surface of the UV underlayer 410; And
Eco-friendly wood board, characterized in that it comprises a UV high gloss (430) formed on the upper surface of the UV intermediate layer 420, vermiculite.
According to claim 1, The wood sheet 100,
Eco-friendly wood board with excellent functionality using vermiculite, characterized in that the veneer, MDF (Medium Density Fibreboard) or PB (Particle Board).
The method of claim 1, wherein the inorganic bio binder composition,
Eco-friendly wooden board with excellent functionality using vermiculite, comprising 65% by weight of sodium silicate, 25% by weight of bismuth compound, 15% by weight of antimony trioxide.
The method of claim 3, wherein the bismuth compound,
Eco-friendly wooden board with excellent functionality using vermiculite, characterized in that selected from the group consisting of bismuth octonate, bismuth naphthenate, bismuth propionate, bismuth maleate, bismuth neothecanoid and bismuth neopentanoid.
The method of claim 1, wherein the aqueous adhesive,
An eco-friendly wood board having excellent functionality using vermiculite, comprising 49.9 to 54.9% by weight of urea resin and 45 to 50% by weight of water.
delete (1) pulverizing vermiculite ore finely, and heating and foaming the pulverized vermiculite ore to prepare vermiculite powder;
(2) preparing the vermiculite mixture by stirring the vermiculite powder and the inorganic biobinder composition;
(3) applying an aqueous adhesive to the wood sheet to form an adhesive layer;
(4) applying or spraying the vermiculite mixture on the adhesive layer to form a vermiculite mixture layer; And
(5) forming a UV coating layer on the vermiculite mixture layer,
Step (5),
(5-1) applying a wood sheet with a first UV coating liquid to form a UV undercoat layer;
(5-2) applying the upper surface of the UV undercoat layer with a second UV coating solution to form a UV intermediate layer;
(5-3) UV hygroscopic coating of the upper surface of the UV intermediate layer; And
(5-4) Eco-friendly wood board manufacturing method with excellent functionality using vermiculite, characterized in that it comprises a drying step.
The method according to claim 7, wherein in step (1),
Grinding the vermiculite ore to 0.2 ~ 2㎜, heated to 850 ~ 1,200 ℃ characterized in that the expansion and expansion, eco-friendly wood board manufacturing method using vermiculite.
The method of claim 7, wherein in step (3),
Eco-friendly wood board manufacturing method using the vermiculite, characterized in that to apply the aqueous adhesive to a thickness of 20 ~ 80㎛.
delete

Images