KR102048286B1 - The method of manufacturing for Semi-non-combustible sheet, and Semi-non-combustible sheet by the method, the composite panel and semi-non-combustible door using the sheet - Google Patents

Abstract

The present invention relates to a method for producing a semi-non-flammable sheet, a semi-non-flammable sheet according to the manufacturing method, and a composite panel and a semi-non-flammable door using the sheet, more specifically, a cellulose-rich cotton The fiber material is wet polished and mixed with natural mineral expanded vermiculite or pearlite porous mineral granules, then agglomerated and molded into a sheet material, which is cut and used for finishing panels such as doors, walls or ceilings of buildings. The present invention relates to a semi-non-combustible sheet, a composite panel and a semi-non-combustible door using the same, which can minimize the spread of sparks and the generation of toxic gases.
The method for producing a semi-non-flammable sheet according to the present invention includes the steps of: beating polishing a cotton fiber material in a tank tank in which a beater is installed to obtain a cotton fiber material in a contaminated state; A porous mineral granule input and mixing step of putting the contaminated cotton fiber material into at least one of expanded vermiculite and pearlite as a porous mineral granule and mixing the contaminated cotton fiber material so as to be integrated with the cotton fiber material; A plate acquiring process of discharging the mixed composition onto a mesh and dehydrating water to obtain a mineral cotton fiber sheet; Impregnating the obtained mineral cotton fiber board material in the impregnation liquid mixed with the thermosetting resin and the phosphorus-based flame retardant and then drying; A planar molding step of smoothly forming the surface of the mineral cotton fiber board member by putting the mineral cotton fiber sheet material into a press and applying pressure to compress it; In order to produce a variety of colors and patterns on the surface of the mineral cotton fiber board material, either by thermal transfer printing, paint coating, flame-retardant LPM or HPM, or by using a die engraved with an embossed or embossed process, It is characterized by including an additional molding process for molding.

Description

The method of manufacturing for semi-non-combustible sheet, and Semi-non-combustible sheet by the method , the composite panel and semi-non-combustible door using the sheet}

The present invention relates to a method for producing a semi-non-flammable sheet, a semi-non-flammable sheet according to the manufacturing method, and a composite panel and a semi-non-flammable door using the sheet, and more particularly, to a wet cotton fiber material rich in cellulose. The present invention relates to a semi-non-combustible sheet, a composite panel, and a semi-non-combustible door made by molding a mineral sheet made by mixing a porous mineral granule of expanded vermiculite or perlite, which is a natural mineral. Specifically, the semi-non-combustible sheet of the present invention may be used in a composite panel and a door to minimize the spread of sparks and the generation of toxic gases during a fire.

In general, foamed polystyrene, urethane, glass wool, etc. are mainly used for the interior of a wall used for building, and the outer wall of the wall is made of iron plate, aluminum, various ceramic boards, gypsum board, ceramic tiles, and the like. Since expanded polystyrene is not flame retardant and can cause great casualties in a fire, regulations on its use are being tightened. Urethane has excellent thermal insulation and some degree of flame retardancy, and its use in the construction and insulation market is still expanding. There was a problem with smearing and generation of toxic gases. Therefore, the development of a flame retardant or non-combustible building walls, ceiling materials and non-combustible boards attached thereto are required.

As a prior art document related to a building finishing material having a conventional flame retardant or non-combustible, Korean Patent Publication No. 10-2018-0053082 (Document 1) has been proposed.

(Document 1) relates to a 'non-combustible thermosetting resin composite panel and a method of manufacturing the same', the substrate is a phenol resin containing a triazole and the outer skin formed by impregnating the substrate laminated with paper and fabric with melamine resin It is formed by impregnation, and comprises a frame portion bonded in a multi-layer in the middle of the outer skin.

This suggests that it can be used in gymnasiums by chemically functionalizing it, giving its own flame retardancy, increasing its surface strength and elasticity.

However, the technique of (1) has a problem in that the melamine resin is impregnated in the tank in which the melamine resin is stored in the process of laminating paper and fabric, so that the area and thickness that can be molded are limited.

On the other hand, the door is used for the entrance and independence of the interior and exterior of the building or the interior and exterior of the space. Among the doors installed at the entrance and the entrance, the fire doors have more than a certain structural strength to prevent the frequent opening and closing of the intruder. In addition, to prevent fire from spreading in the event of a fire, the fire protection characteristics are provided, and the regulations on fire doors are being strengthened or changed every year, especially since the damage caused by large fires gradually increases. Accordingly, the situation is changed every year due to the problems of fire safety and the energy saving policy of buildings.

Accordingly, there is an urgent need for the development of a fire prevention door having a heat shield function, a heat insulation function, an airtight function, and a dew condensation function as well as a smoke prevention function. A conventional fire door is provided between a front plate and a back plate made of steel, and between the front plate and the back plate. It is made of a heat insulating layer, and because it is made of steel, it can achieve one purpose of fire prevention, and it is difficult to produce a beautiful appearance, and installation workability is greatly reduced by heavy loads, and it is toxic through the gap generated between the door and the door frame. Gas and smoke were smeared and there was a problem that human injury occurred.

Here, the Republic of Korea Patent No. 10-797761 (document 2) as a prior art document on the door.

(2) has been proposed a fireproof door made of wood, the flame retardant to the wood-based fireproof door having a frame of a rectangular frame shape formed of at least one filler space and the refractory filler coupled to the filler space, It was difficult to expect great incombustibility or flame retardancy because the layer was coated with a simple liquid flame retardant or composed of a flame retardant plate such as a magnesium board.

On the other hand, in the case of a dedicated fire door is manufactured with an electro-galvanized steel sheet (EGI) as an address material, in the case of wood is manufactured by mixing the solid wood and synthetic wood (MDF), the metal and wood have the above-mentioned problems and also the If there was a problem that can not prevent corrosion by moisture.

In order to solve such a problem, a door using ABS (Acrylonitrile Butadiene Styrene) synthetic resin has recently been proposed, but it has advantages of excellent impact resistance, easy processing, and low cost compared to metal or wood.

The ABS door is produced by the method of producing ABS sheet paper by extrusion method and laminating the PVC decor sheet paper on the sheet paper surface and then applying heat to vacuum forming. ABS resin is mainly composed of acrylonitrile, butadiene, and styrene, and the deco sheet adhered to the surface is detected with dioxin in case of fire and hydrochloric acid is generated.

Therefore, in case of fire, ABS door has a problem in that harmful components are discharged to the human body. In the case of the magnesium board forming the flameproof layer of the prior art described above, the weight is heavy and fragile to use as an exterior plate, and the manufacturing process is difficult. There was this.

As described above, there is a demand for a technology including non-combustible or flame retardant for building finishing materials, interior boards, fireproof doors, etc., and a finishing material, board, and fireproof doors having improved non-flammability or flame retardancy have been proposed, but can be used only for each component. Because it is configured to have a poor usability problem.

(Document 1) Republic of Korea Patent Publication No. 10-2018-0053082 (Document 2) Republic of Korea Patent No. 10-797761

The present invention is to solve the above problems, but the wet cellulose-rich cotton (cotton) fiber material is wet grinding, mixed with the porous mineral granules of expanded vermiculite or pearlite, which is a natural mineral, and then aggregated to form a plate After providing the semi-non-flammable sheet that has been cut, and providing composite panels and semi-non-flammable doors that can be used for walls, ceilings, floors, etc. formed thereon, quasi-non-flammable doors can be used to minimize the spread of flames and the generation of toxic gases in case of fire. It is an object to provide a non-combustible sheet, a composite panel and a semi-non-combustible door using the same.

In addition, the semi-non-combustible sheet can absorb and reduce indoor noise and express various patterns on the surface, so that interior decoration effects can be obtained without using a finishing material such as tiles, and quasi-energy can be obtained by improving insulation. It is an object to provide a non-combustible sheet, a composite panel and a semi-non-combustible door using the same.

In order to achieve the above object, a method of manufacturing a semi-non-combustible sheet according to the present invention includes the steps of obtaining a cotton fiber material in a grind state by beating (biting) the cotton fiber material in a tank tank in which a beater is installed; A porous mineral granule input and mixing step of adding at least one of expanded vermiculite and pearlite as a porous mineral granule to the contaminated cotton fiber material and uniformly mixing to form a mixed composition of the contaminated state; A mineral sheet obtaining process of discharging the mixed composition onto a mesh and dehydrating water to obtain a mineral sheet; Impregnating the mineral sheet with an impregnating solution mixed with a thermosetting resin and a flame retardant, followed by drying; It includes a planar molding process for smoothly forming the surface of the mineral sheet by putting the mineral sheet into a press and compressing by applying pressure.

* Beating: Beating (叩 解) is a process of tapping or crushing pulp in water, and refers to the release of fiber evenly in water.

Preferably it is possible to include a secondary molding process for producing a variety of colors, patterns, etc. on the surface of the mineral sheet after the planar molding process, any one of thermal transfer printing, paint coating, flame-retardant LPM or HPM Molding is performed by using a mold that is bonded or engraved or embossed, using a blister pressure forming method.

Preferably, the inorganic pigment containing at least one of iron oxide, titanium oxide, cadmium sulfide, cadmium selenide, chromium oxide, potassium hexacyanoferrate, carbon black, calcium carbonate in the porous mineral granule dosing and mixing process; Inorganic binder containing at least one or more of, sodium borate, boric acid, quicklime, silica fume, metakaolin, gypsum is further characterized in that it is added.

On the other hand, the composite panel including the quasi-non-combustible sheet formed according to the above-described manufacturing method, a frame-shaped frame configured to form a filler space therein, a refractory filler filled in the filler space, and at least one of both sides of the frame It is characterized by consisting of a semi-non-flammable sheet attached to one side.

In this case, the frame is further provided with a coupling means for mutually engaging with another adjacent composite panel, the coupling means, the grooves formed in any one of the opposite directions in the frame-shaped frame, the opposite, Characterized in that it consists of iron (형성된) formed in the other direction of the direction.

On the other hand, the quasi-non-combustible door including the quasi-non-combustible sheet formed according to the above-described manufacturing method, the frame-shaped frame in which the filler space is formed, the refractory filler filled in the filler space, and the quasi-attached on each side of the frame It is characterized by consisting of a non-combustible sheet.

The present invention made as described above, while preventing the secondary damage in the event of a fire through a semi-non-combustible sheet made of semi-combustible material while improving the interior interior effect by absorbing and reducing indoor noise and embodying various patterns in the form of embossed or engraved, It is possible to improve the heat insulating property and to obtain an energy saving effect, and to have moisture resistance, so that it does not rot by moisture.

Composite panels and fire doors including semi-non-combustible sheets minimize the spread of sparks in the event of fire and reduce the generation of toxic gases to prevent human injury, and improve the performance of insulation, sound insulation, etc. It can reduce the contention with neighbors, and can be molded to have patterns of various colors, patterns, engravings, embossing, etc., which has the advantage of enhancing the interior effect.

In addition, there is a humidity control (있어) effect is to obtain the effect of controlling the humidity of the indoor space.

1 is a flow chart illustrating a method of manufacturing a semi-non-flammable sheet according to the present invention.
2 is an exemplary view showing a composite panel including a semi-non-flammable sheet according to the present invention.
3 is an exemplary view showing a sandwich panel including a semi-non-flammable sheet according to the present invention.
Figure 4 is an exemplary view showing a semi-non-combustible door including a semi-non-flammable sheet according to the present invention.
Figure 5 is a semi-flammable test picture for a semi-non-flammable door according to the present invention
Figure 6 is a comparison picture of the combustion test of the semi-combustible door and the general ABS door according to the present invention

Hereinafter, other objects and features of the present invention in addition to the above object will be apparent through a description of the embodiments with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the semi-non-combustible sheet, a composite panel and a semi-non-combustible door using the same.

1 illustrates a method of manufacturing a semi-non-flammable sheet according to the present invention in order, the detailed description of each process is as follows.

(a) the process of obtaining cotton fibers in a grueling state by beating;

After cutting the cotton fiber containing a large amount of cellulose to 40mm in length, filling the tank tank with beater with 3000ℓ of water and adding 150kg of cotton fiber to beaten for 1 ~ 2 hours It is a process of obtaining cotton fiber material.

Commonly known cotton wool contains 98% of cellulose, and about 70% of bast fibers such as flax, hemp, ramie grass, and jute are It contains cellulose. Wood, the raw material for pulp, contains about 40-50% cellulose.

In the present invention, a cotton fiber containing a large amount of cellulose is used. Preferably, the cotton fiber generated as a by-product in the cotton product manufacturing process is used so that the price is low and the supply can be maintained smoothly.

Cellulose contained in cotton fibers can increase the semi-incombustibility effect. In particular, cotton fibers can utilize a large amount of waste cotton that is used and discarded in the industrial field or at home. It is a resource that can be supplied and supplied and it is an eco-friendly material that is harmless to the human body.

Since chemical fibers are not made of cellulose, they cannot be released into water by biting, so they cannot cohesively bond porous natural minerals such as expanded vermiculite or pearlite granules.

Of course, cellulose can be obtained from fibers or pulp other than cotton fiber, but since manufacturing cost is high and above all, quality cellulose can not be obtained compared to waste fiber, it is most preferable to use waste fiber as described above.

In addition, wood, which is a raw material of bast fiber such as flax, hemp, ramie, jute, and pulp containing about 40-50% of cellulose, which contains about 70% of cellulose, may be used. The disadvantage is low effect.

Preferably, rock wool (岩 綿) in addition to the cotton fibers to improve the strength of the mineral sheet by strengthening the binding force of the mineral sheet.

Rock wool is also called rock fiber, and it is made from a mixture of limestone with rocks such as andesite and basalt and slag of nickel and manganese. It is a fiber made by melting basalt and andesite in an electric furnace with high temperature of 1,500 ~ 1,600 ℃ and blowing out from the nozzle at the bottom of the furnace with compressed air. The length of the fiber is 10-100mm and the thickness is 2-20μm as standard.

The amount of rock wool is suitably about 20 to 50 parts by weight based on 100 cotton fibers.

(b) porous mineral granule dosing and mixing process

It is preferable to add expanded vermiculite as a porous mineral to the cotton fiber material in the contaminated state.

At this time, 50 to 70 parts by weight of expanded vermiculite may be included with respect to 100 parts by weight of cotton fiber, and when the expanded vermiculite is included within the above-described range, it is mixed with the cotton fiber of the contaminated state and has excellent adhesion with cotton fiber. It can improve quasi-non-flammable function.

Expanded vermiculite is an inorganic material and has excellent non-combustibility, good thermal insulation, and low specific gravity (0.12 ~ 0.2), so that it does not settle in the tank and floats in water, and is naturally mixed with bitter-polished cotton fiber during mixing. Iv) Penetrate into every corner and connect the expanded vermiculite granules with each other and at the same time integrate them.

The expanded vermiculite is crushed vermiculite in the particle size of about 1 ~ 3mm, and when sintered at 1000 ~ 1200 ℃ swells and swells, the density becomes smaller and floats in water.

Since the expanded vermiculite tends to agglomerate with each other due to its sticky nature, preferably, when 30 to 50 parts by weight of pearlite is added, the perlite plays a role of crosslinking to maintain a constant interval of the expanded vermiculite, thereby achieving more uniform mixing.

As a preferred embodiment, 50 to 70 expanded vermiculite and 10 to 30 pearlite are added and mixed with respect to the cotton fiber 100 so that the microfibers and the porous minerals of the cotton fiber material are entangled with each other and integrally combined. That is, the expanded vermiculite and perlite are porous, so they are light in weight and float in water, and the microfibers of the cotton fiber floating in the upper part of the water are inserted into the pores of the expanded vermiculite and perlite and are tangled and strongly bonded.

Although not included in the above embodiment, preferably, the illite of 1 to 5 and the diatomaceous earth of 1 to 5 are sequentially added to allow minerals to penetrate between the cotton fibers to be integrated with the cotton fibers.

 The cotton fiber material released in the water by betting polishing is to infiltrate the pores (氣孔) formed in the porous natural mineral granules to combine the minerals, the mineral sheet obtained from it seems to be mainly the mineral appearance.

The diatomaceous earth is a sediment produced by the accumulation of lactic acid harmfulness of diatom, a single cell algae, on the bottom of the sea or lake. It is composed mainly of silica (SiO²), an inorganic compound, and has various performances such as deodorization, insulation, and humidity control. Excellent flame retardancy

On the other hand, expanded graphite can be further added. Since expanded graphite has a layered structure of graphite, when atoms or small molecules are inserted between layers, heat is separated like an accordion, causing particles to expand hundreds of times. When 1 to 5 parts by weight of expanded graphite powder is added, it is in close contact with the pores of the cotton fibers to form a unit, thus expanding during a fire to block oxygen and having a self-extinguishing function so that the flames can not be spread any more. The semi-incombustibility of the fiber can be further improved. However, if an excessive amount is input, the color of black is expressed, which may be a problem when painting.

On the other hand, inorganic pigments containing at least one of iron oxide, titanium oxide, cadmium sulfide, cadmium selenide, chromium oxide, potassium hexacyanoferrate, carbon black and calcium carbonate, sodium borate, boric acid, quicklime, silica fume, meta Inorganic binders comprising at least one of kaolin and gypsum may further be added.

The inorganic pigment is to be used in any one selected or a combination of two or more according to the desired color, 5 to 10 parts by weight based on 100 parts by weight of cotton fiber.

      The inorganic binder is to increase the strength and nonflammable performance of the mineral and cotton fiber material, 2-20 parts by weight based on 100 parts by weight of cotton fiber material. The inorganic binder improves the thermal stability of the injected cotton fiber, expanded vermiculite, inorganic pigment, and further makes the cotton fiber have strength and nonflammability.

(c) mineral sheet dehydration process

Mineral composition containing minerals by discharging the mixed composition on the mesh to remove water (moisture) because the mixed composition entangled with the contaminated cotton fiber and porous minerals contains water. Obtain ashes.

Dehydration is accomplished by natural dehydration or compression rollers, or through dehydration roller process, so that the mineral sheet has a water content of 20 ~ 30% after dehydration.

If the water content is 20% or less, the mineral sheet material is dried and can be easily damaged by external impact. If the water content is 30% or more, the specific gravity of the flame retardant impregnated in the next flame retardant impregnation process may be reduced. To have a moisture content of%.

(d) Thermosetting resin and flame retardant impregnation and drying process

A process of impregnating a mixture of a thermosetting resin and a phosphorus-based flame retardant in a dehydrated mineral sheet material and drying it by a hot air dryer, wherein the mixture of a thermosetting resin and a flame retardant is impregnated into the mineral sheet to bond the cotton fiber material and the porous mineral more firmly. In addition, it is possible to further improve the incombustibility.

Thermosetting resins include phenol resins, urea resins, melamine resins, polyester resins, alkyd resins, silicone resins, epoxy resins, and the like.

Since the thermosetting resin is molded after heating and once cured to an insoluble state, the thermosetting resin has a flame retardancy which no longer causes plasticity even after heating, so that the mineral sheet has a flame retardant effect by using this property.

Phosphorus-based flame retardants include phosphorus-based flame retardants, phosphorus / halogen flame retardants, and phosphorus / nitrogen flame retardants.Phosphorus-based flame retardants produce polymethic acid by pyrolysis of phosphorus compounds when combusted, which forms a protective layer. When produced, the carbon film produced by the dehydration action has the effect of blocking oxygen to prevent combustion, thereby obtaining a nonflammable effect.

The mixed solution is impregnated into the mineral sheet material to have a weight ratio of 30 to the total weight of the mineral sheet material 100.

The impregnated mineral sheet material is dried by a hot air dryer, preferably through a hot air temperature of 180 ° C., and cut to a suitable size. It is usually cut in a state such as a nonwoven fabric having a width of 1200 mm, a thickness of 4.5 mm, and a length of 2500 mm.

(e) planar forming process

The molding step to be performed after the drying step is to smooth the surface of the plate by putting the non-woven mineral sheet material into a press and compressing it under pressure. At this time, the remaining moisture and flame retardant are evaporated due to heat and pressure, and at the same time, the thermosetting resin adheres to the mineral sheet material at the melting point, thereby obtaining a hard mineral sheet.

Preferably, the surface of the mineral sheet is formed by applying an aqueous paint to have a variety of colors and designs can be coated and dried.

(f) addition molding process

After the planar forming process, to produce various colors and patterns on the surface of the mineral sheet, either thermal transfer printing, paint coating, or flame retardant low pressure melt (LPM) or high pressure melt (HPM) Glue. As a result, the flat mineral sheet can be produced in a variety of ways, and in particular, by using a die engraved with an intaglio or an embossed mold, the surface of the mineral sheet can be molded to have a three-dimensional impression by embossing or embossing the surface.

That is, the hard mineral sheet formed through the planar molding process (e) may be pressed in the mold frame, and the three-dimensional appearance is improved by being seen as a two-tone color by the pressing phenomenon. Preferably, the thickness of the press-molded mineral sheet through the addition molding process is to maintain 2 ~ 3mm.

In this case, it is preferable to use a flame retardant paint or the LPM or HPM used to prevent the generation of toxic gases in case of fire.

The following is a variety of test results for the semi-non-flammable sheet of the present invention manufactured through the above process.

<Test Example>

1) Semi-non-flammable test

The test results in [Table 1] below show the results of the quasi-non-flammable sheet tested by the Disaster Prevention Testing Institute, an authorized test organization.

Test Items Sample Number One 2 3 standard Semi-non-combustible material Heat release rate Total heat release 2.4 3.1 6.5 8MJ / ㎡ or less Time exceeding 200kw / ㎡ (s) 0 0 0 10s or more Cracks, holes and melting through the test body none none none No Gas Hazard Average Behavioral Downtime of Rats 13 minute, 54 seconds 14 minute, 15 seconds 14 minute, 05 seconds More than 9 minutes

As described in [Table 1], the semi-non-combustible sheet according to the present invention passes the standard of non-combustible, which is a material having properties similar to non-combustible materials (Article 2 of the Enforcement Decree of the Building Act), and heated at 305 ° C for 10 minutes. It satisfies the condition that there is no deformable detrimental effect such as melting and cracking at the time of melting and cracking, and there is no residual flame for more than 30 seconds after the end of heating.

2) Asbestos content

As regards the recent asbestos harmfulness of the present invention, the non-combustible sheet according to the present invention did not detect asbestos at all. This is in accordance with the test results of the Korea Institute of Construction and Environmental Testing, an accredited testing institute.

3) Mildew Resistance

In the experiment for testing the mold resistance against the semi-non-flammable sheet, the fungal mixed strains Aspergillus brasiliensis ATCC9642, Penicillium funiculosum ATCC 11797, Chaetomiun globosum ATCC 6205, Trichoderma virens ATCC 9545, Aureobasidium pullulans 15233 were incubated for 4 weeks, Mycelial growth was not recognized. The test related to mold resistance is based on the test result of Korea Institute of Construction and Environmental Testing, an accredited testing institute.

4) Antibacterial test

In the antibacterial test for the non-abrasive finish according to the present invention E. coli and Pseudomonas aeruginosa showed a 99.9% bacterial reduction after 24 hours. The test related to this antimicrobial test is based on the test result of Korea Institute of Construction and Environmental Testing, an accredited testing institute.

As can be seen from the above test results, the semi-non-combustible sheet according to the present invention passes the standard of non-combustible, which is a material having properties similar to those of non-combustible materials (Article 2 of the Enforcement Decree of the Building Act), and 10 minutes at 305 ° C. There is no detrimental detrimental effect such as melting and cracking during heating, and there is no residual flame more than 30 seconds after the end of heating, which has passed the test standard of Korean Industrial Standard KSF2271.

Meanwhile, various colors, patterns, and patterns may be obtained by adhesively laminating at least one selected from high pressure melamine sheet (HPM), ocher paper, aluminum sheet, copper sheet, miller, and veneer on a semi-combustible sheet. Semi-combustible sheet having a can be formed.

In addition, the luminous or luminous paint is further added to the ceiling of the corridor, which can be used for evacuation in the event of a fire.

Referring to Figures 2 to 4 a variety of applications including the semi-non-flammable sheet according to the present invention made as described above are as follows.

First, FIG. 2 illustrates a composite panel 100 including a semi-non-combustible sheet according to the present invention.

A frame-shaped frame 10 in which the filling material space 11 is formed,

Refractory filler 20 is filled in the filler space 11,

It comprises a quasi-non-flammable sheet (1) attached to at least one side of both sides of the frame (10).

The frame 10 is a combination of a plurality of flame-retardant wood or metal square tube to form a filling material space 11 in the center, wherein the thickness and size and shape of the frame is not limited. That is, according to the use of the composite panel 100 may be made in the form of a rectangular frame shown in the figure or may be made in a variety of forms, such as circular, rectangular, ellipse.

On the other hand, flame-retardant wood is treated with wood by injecting or immersing chemicals, or the coating film itself is foamed with a coating and heating that delays combustion with low combustibility and thermal conductivity to block the supply of flame, heat and air. Wood treated with flame-retardant paint, etc., which is coated with a fire-retardant paint applied to wood, and produces wood products in accordance with Article 17 of the Act on Sustainable Use of Wood (evaluation of stability of wood products) and Article 15 of the Enforcement Decree of the same Act. In order to prevent physical and chemical damage to humans and the environment when selling or using the product, it is satisfied that the safety evaluation of wood products is required, which satisfies the performance criteria of the flame retardant wood described in Table 2 below.

Item Performance standard Total heat release 8MJ / ㎡ or less for 5 minutes Heat release rate Do not exceed 200kW / ㎡ continuously for more than 10 seconds for 5 minutes Cracks, holes and melting After 5 minutes of heating, there should be no harmful cracks, holes, and melting on fire. Average stop time of action for threaded rats More than 9 minutes Corrosion resistance Less than iron corrosion costs 2.0 Hygroscopic Absorption ratio 1.2 or less

In addition, the frame 10 may form a filler space 11 at the center, but may add a plurality of tubes disposed across the filler space 11 to improve durability, wherein the plurality of tubes are in a lattice form. It is preferable to arrange as.

The refractory filler 20 is filled in the filler space 11 to obtain heat insulation, hygroscopicity, soundproofing effect, etc. and at the same time to reduce the damage to life through high flame retardancy in the event of a fire.

To this end, the refractory filler 20 uses a phenol foam (Phenolic Foam), the phenol foam is a phenol resin, emulsifier, foaming agent and put in an oven so that the temperature of the liquid to room temperature (27 ℃), the liquid When the temperature of 27 ℃ is mixed for 1 minute (min) at 1000rpm, the blowing agent is added and then mixed again for 1 minute at the same rotation speed. After the curing agent is added and mixed for 30 seconds (sec) and put into a 50 ℃ oven used for 1 hour to cure.

The test results for the flame retardancy and heat resistance of phenolic foam have been described in the Journal of the Korean Gas Society 2013 Vol.17 No.1 pp35 ~ 41 for the study of flame retardancy and heat resistance of phenolic foam and polyurethane foam.

In summary, the phenolic foam formed as described above was rapidly decomposed compared to the polyurethane foam, but the residual amount remaining at 800 ° C. was much higher than that of the polyurethane foam, and the phenolic foam was lower than that of the polyurethane foam. The average heat release rate and the maximum heat release rate were shown, and the effective burn rate was the lowest as phenol foam with TEP added at 17.86MJ / kg, and the mass reduction rate was 0.006 kWh / s as average for polyurethane. The foam had a value lower than 1/20 of 0.03 g / s on average.

In addition, the smoke generation amount of phenol foam is 9 ~ 70㎡ / ㎡, while polyurethane foam is 126 ~ 303㎡ / ㎡ showed a very small value of 1/2 ~ 1/3 34 compared to the polyurethane foam.

By using the phenolic foam formed as described above, it is possible to obtain thermal insulation, hygroscopicity, and sound insulation, and at the same time, to reduce the spread of fire and the generation of toxic gases through high flame retardancy in the event of a fire. )

Alternatively, the filler space inside the frame may be provided with calcium board in place of phenolic foam.

In FIG. 2, a filler is formed in the filler space formed by the frame 10, and both sides formed by the frame and the filler are attached to at least one surface of the non-flammable sheet of the present invention. In the composite panel of FIG. 2, only one surface of the composite panel may be attached to the non-flammable sheet of the present invention. In this case, the other surface may be made of gypsum board so as to add sound insulation and insulation effect.

When attaching the semi-non-combustible sheet to the surface of the frame and the filler, an organic urethane adhesive is used, but an expanded urethane graphite is added in an amount of 5 to 30 by weight. This causes the expanded graphite to expand in the event of a fire, making it difficult to spread the flame.

Meanwhile, FIG. 3 illustrates that the semi-non-flammable sheet 1 is attached to each of both sides of the frame 10, thereby improving thermal insulation and absorbing noise, thereby increasing the composite panel 100 formed as described above. ) Can be used as a finishing material attached to the inner or outer walls of buildings.

That is, by attaching the semi-non-flammable sheet (1) to each side of the frame 10 to form a sandwich panel (200) and use it as interior and exterior materials of the building to increase the thermal insulation to achieve energy saving effect, fire When it occurs, the secondary damage can be minimized.

In this case, the composite panel 100 may further include a fastening means 30 for mutually coupling with another adjacent composite panel 100. (See the enlarged original view of FIG. 3).

The fastening means 30 is composed of a yaw groove 31 formed on any one side of the left and right sides of the frame and iron projections 32 formed on the other side of the other composite panel 100 and the male and female form. By combining, you can maintain a firm holding force.

In addition, when the composite panel 100 is used as a partition partitioning an indoor space, a plurality of grooves 31 and protrusions 32 are formed on the frame 10 at a predetermined angle, respectively. By adjusting, it is possible to partition the interior space in various forms.

On the other hand, Figure 4 is to attach the semi-non-flammable sheet (1) on each side of the frame 10, respectively, to add a handle 50 and the hinge to the frame 10 to form a semi-non-flammable door 300, It has high thermal insulation and soundproofing effect, and there is no spread of flame and no emission of toxic gas in case of fire, which can minimize the risk of human life due to the spread of fire and toxic gas.

As described above, the semi-non-combustible sheet 1 according to the present invention can express various patterns on the outer surface, and maintains a thickness of 2 to 3 mm when forming a pressure in a 1200 mm width, 4.5 mm thickness, 2500 mm length, or secondary molding process. It is advantageous in that it is light in weight and can be used by cutting in various forms and shapes.

Therefore, the interior and exterior finishing materials for building including the semi-non-flammable sheet 1 according to the present invention, and the semi-non-combustible door can improve insulation and sound insulation, thereby reducing the quarrel between neighbors due to energy saving effect and noise between floors and varying on the exterior. Sculptures can be expressed in patterns, embosses, and intaglios, allowing not only indoor but also outdoor interior effects.

As described above, the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims, as well as the appended claims, will belong to the scope of the present invention. .

1 semi-non-flammable sheet
10 frames
11 Filling space
20 refractory fillers
30 coupling means
31 groove
32 Iron Protrusion
40 semi-non-flammable door
100 Composite Panel
200 sandwich panels
300 semi-non-flammable door
S 10: fiber beating process
S 20: Porous mineral granule input and mixing process
S 30: mineral sheet material acquisition process
S 40: process of impregnation with impregnation liquid and drying]
S 50: planar forming process
S 60: addition molding process

Claims (6)

(B10) obtaining a cotton fiber material in a grueling state by beating the cotton fiber material in a tank tank in which a beater is installed;
Injecting and mixing the porous mineral granules to form at least one or more of expanded vermiculite, perlite as the porous mineral granules and mixed so as to be integral with the cotton fiber material to form a mixed composition of the contaminated cotton fiber material (S20) ;
A mineral sheet material obtaining step of discharging the mixed composition onto a mesh and dehydrating water (S30);
Impregnating the obtained mineral sheet material into an impregnating solution mixed with a thermosetting resin and a flame retardant solution and then drying (S40);
And a planar forming step (S50) of smoothly forming the surface of the mineral sheet material by putting the mineral sheet material into a press and applying heat and pressure to compress the mineral sheet material.
The method of claim 1,
The bitting polishing step (S10) is a method for producing a semi-non-flammable sheet, characterized in that the beating by adding a rock wool in addition to the cotton fiber material.
The method of claim 1 or 2, wherein the porous mineral granule input and mixing process (S20)
Inorganic pigments containing at least one of iron oxide, titanium oxide, cadmium sulfide, cadmium selenide, chromium oxide, potassium hexacyanoferrate, carbon black, and calcium carbonate, sodium borate, boric acid, quicklime, silica fume, metakaolin, Method for producing a semi-combustible sheet characterized in that the inorganic binder containing at least one of the gypsum is further added.
Quasi-non-flammable sheet produced by the manufacturing method of claim 1.
Including a semi-non-flammable sheet (1) prepared through the manufacturing method of claim 1,
A frame-shaped frame 10 in which the filling material space 11 is formed,
Refractory filler 20 is filled in the filler space 11,
Composite panel using a semi-non-flammable sheet, characterized in that the semi-non-flammable sheet (1) is attached to at least one surface of both sides of the frame (10).
Including a semi-non-flammable sheet (1) prepared through the manufacturing method of claim 1,
A frame-shaped frame 10 in which the filling material space 11 is formed,
Refractory filler 20 is filled in the filler space 11,
Semi-non-flammable door using a semi-non-flammable sheet, characterized in that consisting of a semi-non-flammable sheet (1) attached to each side of the frame (10).

Images