KR100728746B1 - A uninflammable board and the manufacturing - Google Patents

A uninflammable board and the manufacturing Download PDF

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Publication number
KR100728746B1
KR100728746B1 KR20060045770A KR20060045770A KR100728746B1 KR 100728746 B1 KR100728746 B1 KR 100728746B1 KR 20060045770 A KR20060045770 A KR 20060045770A KR 20060045770 A KR20060045770 A KR 20060045770A KR 100728746 B1 KR100728746 B1 KR 100728746B1
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South Korea
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weight
mixture
drying
glass fiber
flat plate
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KR20060045770A
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Korean (ko)
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이준억
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성남기업(주)
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials
    • C04B2111/00629—Gypsum-paper board like materials the covering sheets being made of material other than paper
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/904—Flame retardant

Abstract

Provided are a noninflammable board which is environmental friendly, does not generate harmful gas in case of a fire and is high in strength, and a method for preparing the noninflammable board. The noninflammable board(100) comprises a noninflammable board formed by adhering a glass fiber net on the upper and lower surfaces of a mixture(110) which comprises 80 vol% of a powder mixture comprising 60 wt% of magnesium oxide, 20 wt% of magnesium chloride, 10 wt% of sawdust and 10 wt% of perlite, and 20 vol% of water and molding and drying it; a glass fiber net(120) formed on the upper surface of the mixture; and nonwoven(130).

Description

불연성 보드 및 그 제조방법{a uninflammable board and the manufacturing} Non-flammable board and its manufacturing method {a uninflammable board and the manufacturing}

도 1은 본 발명에 따른 불연성 보드의 단면도.1 is a cross-sectional view of a nonflammable board according to the present invention.

도 2는 본 발명에 따른 불연성 보드의 변형된 실시예의 단면도.2 is a cross-sectional view of a modified embodiment of a nonflammable board according to the present invention.

도 3은 본 발명에 따른 불연성 보드의 제조방법의 순서를 나타내는 흐름도.3 is a flowchart illustrating a procedure of a method of manufacturing a nonflammable board according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

100 : 불연성 보드 110 : 혼합물100: non-combustible board 110: mixture

120 : 유리섬유망 130 : 부직포120: glass fiber network 130: nonwoven fabric

본 발명은 불연성 보드 및 그 제조방법에 관한 것으로써, 인체에 무해한 친환경적이고 화재시 유해가스가 발생되지 않으며 고강도로 변형이 없음은 물론이고 제작이 용이한 산화마그네슘을 주원료로 하는 불연성 보드 및 그 제조방법을 제공하는 것이다.The present invention relates to a non-combustible board and a method for manufacturing the same, which is harmless to the human body, does not generate harmful gases in a fire, does not generate deformation due to high strength, and is easy to manufacture. To provide a way.

종래의 실내 도어 또는 칸막이에 사용되는 일반 보드은 목재 및 합성수지로 이루어져 화재 발생시 연소가 되며 화염의 확산을 방지할 수 없었다. Conventional boards used in conventional indoor doors or partitions are made of wood and synthetic resin, which can be burned in the event of a fire and prevent the spread of flame.

또한, 상기 목재를 원료로 하는 보드은 수분에 의한 변형이 많아 마감재의 박리현상 및 휨 변형이 발생되며, 합성수지재질의 보드은 화재시 유독가스의 발생으로 인한 인명피해의 문제점이 있었다.In addition, the board made of wood as a raw material has a lot of deformation caused by moisture, the peeling phenomenon and bending deformation of the finish is generated, the board of the synthetic resin material has a problem of human injury due to the generation of toxic gas in the fire.

그리고 화재에 대한 인식 및 소방법의 강화로 인한 방화용 보드로는 목재방화문이 주로 사용되고 있으며, 이는 난연처리된 집성목을 사용하거나 암면 등의 불연성능 충진재를 삽입하고 있으며, 이는 고가 및 제작공정의 복잡 등의 이유로 국내에서는 사용이 거의 되고 있지 않으며, 대부분 철재 방화문을 이용하고 있으나 마감성 미비, 다양한 디자인 적용의 어려움 등의 문제로 인하여 사람의 출입이 드문 장소 외에는 실내도어 및 칸막이로 사용이 거의 전무한 실정이다.Wood fire doors are mainly used as fire protection boards due to the strengthening of fire awareness and fire protection methods, which use fire-treated wood or insert non-combustible fillers such as rock wool. Due to this reason, it is rarely used in Korea, and most of them use steel fire doors. However, due to problems such as inadequate finishing and difficulty in applying various designs, it is rarely used as indoor doors or partitions except for places where people have little access.

이에 본 발명은 이와같은 문제점을 감안하여 안출한 것으로써, 특히 실내인테리어 및 도어의 자재로 사용되며 화재시 방화성능 및 강도가 우수하고, 유리섬유망을 사용하여 저렴한 가격으로 일정범위 내에서 강도조절이 용이하고, 표면이 매끄러우며 평활도가 높은 산화마그네슘을 주원료로 하는 불연성 보드 및 그 제조방법을 제공하는 것을 목적으로 한다.Therefore, the present invention has been devised in view of the above problems, in particular, it is used as a material for indoor interiors and doors, has excellent fire resistance and strength in case of fire, and uses a glass fiber net to control the strength within a certain range at a low price It is an object of the present invention to provide a non-combustible board comprising magnesium oxide as a main raw material which is easy, has a smooth surface, and has high smoothness.

이와같은 목적을 달성하기 위하여 본 발명은 산화마그네슘60중량%, 염화마그네슘20중량%, 톱밥10중량%, 펄라이트10중량%의 분체혼합물과 물을 각각 부피비 80%:20%로 혼합한 혼합물을 그 상면과 하면에 유리섬유망을 침합하여 소정의 형상으로 성형가공 및 건조하여 이루어지는 불연성 보드를 제공한다.In order to achieve the above object, the present invention provides a mixture of 60% by weight of magnesium oxide, 20% by weight of magnesium chloride, 10% by weight of sawdust and 10% by weight of pearlite, and a mixture of water in a volume ratio of 80%: 20%. It provides a non-combustible board formed by incorporating a glass fiber net on the upper surface and the lower surface by molding and drying in a predetermined shape.

본 발명은 순도 산화마그네슘80중량%, 염화마그네슘20중량%의 분체혼합물과 물을 각각 부피비 80%: 20%로 혼합한 혼합액을 준비된 일정크기의 밑판에 1mm두께 로 도포하는 단계(a), 및 상기 (a)단계의 밑판에 유리섬유망을 깔아주는 단계(b), 상기 (b)단계의 밑판 상에 산화마그네슘60중량%, 염화마그네슘20중량%, 톱밥10중량%, 펄라이트10중량%의 분체혼합물과 물을 각각 부피비 80%:20%로 혼합한 혼합물을 부여하는 단계(c), 상기 (c)단계의 혼합물에 유리섬유망을 도포하는 단계(d), 상기 유리섬유망을 포함하여 혼합물을 일정한 크기의 평판체로 성형하는 단계(e), 상기 평판체를 밑판과 함께 습도 70%~80%, 온도 30℃~40의 건조실에서 12시간시간 동안 건조도 80%로 1차 건조하는 단계(f), 상기 (f)단계의 평판체를 밑판을 제거한 상태레서 온도 30℃~40의 건조실에서 12시간동안 건조도 95%로 2 차건조하는 단계(g), 상기 (g)단계의 평판체를 상온에서 완전건조하는 자연건조단계로 이루어지는 제조방법을 제공한다.The present invention is a step (a) of applying a mixed liquid of 80% by weight of magnesium oxide, 20% by weight of magnesium chloride and a mixture of water in a volume ratio of 80%: 20% to a prepared base plate with a thickness of 1 mm, and Step (b) of laying the glass fiber net on the bottom plate of step (a), 60% by weight of magnesium oxide, 20% by weight of magnesium chloride, 10% by weight of sawdust, 10% by weight of pearlite on the bottom of the step (b) (C) applying a glass fiber network to the mixture of the step (c) and the mixture of the step (c), respectively, by mixing the powder mixture and water in a volume ratio of 80%: 20%, including the glass fiber network (E) molding the mixture into a flat plate having a uniform size, and first drying the flat plate with a base plate at a humidity of 70% to 80% and a drying chamber at a temperature of 30 ° C to 40 for 80 hours at a drying degree of 80% for 12 hours. (f), the bottom plate was removed from the plate of step (f) for 12 hours in a drying chamber having a temperature of 30 ° C to 40 ° C. Provides the step (g), the manufacturing method comprising the step of air drying the bone dry plate material of step (g) at room temperature to dry the secondary drying to 95%.

본 발명의 올바른 실시예를 첨부되는 도 1,2, 3을 통하여 자세하게 살펴보면 다음과 같다.Looking in detail with reference to Figures 1,2, 3 attached to the correct embodiment of the present invention.

도 1은 본 발명인 불연성 보드의 단면도이고, 도 2는 본 발명인 불연성 보드의 변형된 실시예의 단면도이고, 도 3은 본 발명에 따른 불연성 보드의 제조방법의 순서를 나타내는 흐름도이다.1 is a cross-sectional view of a non-flammable board of the present invention, FIG. 2 is a cross-sectional view of a modified embodiment of the non-flammable board of the present invention, and FIG. 3 is a flowchart showing a procedure of a method of manufacturing a non-flammable board according to the present invention.

본 발명에 따른 불연성 보드(100)는 도 1,2에 도시한 바와같이 산화마그네슘60중량%, 염화마그네슘20중량%, 톱밥10중량%, 펄라이트10중량%의 분체혼합물과 물을 각각 부피비 80%:20%로 혼합한 혼합물(110)을 그 상면과 하면에 유리섬유망(120)을 침합하여 소정의 형상으로 성형가공 및 건조하여 이루어진다.The non-combustible board 100 according to the present invention is 60% by weight magnesium oxide, 20% by weight magnesium chloride, 10% by weight sawdust, 10% by weight pearlite powder mixture and water as shown in Figures 1 and 2, respectively : The mixture 110, which is mixed at 20%, is formed by incorporating the glass fiber mesh 120 into the upper and lower surfaces thereof, and molding and drying the mixture 110 to a predetermined shape.

상기 산화마그네슘은 적어도 90%이상의 순도를 갖고, 상기 염화마그네슘은 적어도 28%이상의 순도를 갖으며, 180~200메쉬의 분체를 사용함이 바람직하다.The magnesium oxide has a purity of at least 90% or more, the magnesium chloride has a purity of at least 28% or more, it is preferable to use a powder of 180 ~ 200 mesh.

또한, 상기 산화마그네슘은 900에서 약 12시간 정도 가열하여 0.50% 정도의 선팽창이 이루어진 것을 사용한다.In addition, the magnesium oxide is heated to about 12 hours at 900 to 0.50% of the linear expansion is used.

그리고 상기 유리섬유망(120)은 요구되는 강도에 따라 4*4/㎠, 6*6/㎠로 형성된 것을 사용 및 혼합물(110)에 다층으로 심재한다.In addition, the glass fiber network 120 is used in the form of 4 * 4 / ㎠, 6 * 6 / ㎠ according to the required strength and the mixture 110 is cored in multiple layers.

한편, 상기 혼합물(110)의 성형시 로울러와 같은 회전가압체를 사용하며, 이때, 상기 회전가압체의 표면에 혼합물(110)이 접착되는 것을 방지하기 위하여 상면에 티슈와 같이 매우 얇은 부직포(130)를 유리섬유망(120)과 더불어 도포함이 바람직하다.On the other hand, when forming the mixture 110, a rotary press such as a roller is used, and in this case, in order to prevent the mixture 110 from adhering to the surface of the rotary press, a very thin nonwoven fabric 130, such as a tissue on the upper surface. ) Is preferably included with the glass fiber network 120.

이하, 도 3에 도시한 바와같이 본 발명인 불연성 보드(100)를 그 제조방법을 통하여 자세하게 살펴보면 다음과 같다.Hereinafter, the non-flammable board 100 of the present invention will be described in detail through the manufacturing method as shown in FIG. 3.

상술한 불연성 보드(100)는 산화마그네슘80중량%, 염화마그네슘20중량%의 분체혼합물과 물을 각각 부피비 80%: 20%로 혼합한 혼합액을 준비된 일정크기의 밑판에 1mm두께로 도포하는 단계(a), 및 상기 (a)단계의 밑판에 유리섬유망을 깔아주는 단계(b), 상기 (b)단계의 밑판 상에 산화마그네슘60중량%, 염화마그네슘20중량%, 톱밥10중량%, 펄라이트10중량%의 분체혼합물과 물을 각각 부피비 80%:20%로 혼합한 혼합물을 부여하는 단계(c), 상기 (c)단계의 혼합물에 유리섬유망을 도포하는 단계(d), 상기 유리섬유망을 포함하여 혼합물을 일정한 크기의 평판체로 성형하는 단계(e), 상기 평판체를 습도 70%~80%, 온도 30℃~40의 건조실에서 12시간동안 건조도 80%로 1차 건조하는 단계(f), 상기 (f)단계의 평판체를 온도 30℃~40의 건조실에서 12시간동안 건조도 95%로 2 차건조하는 단계(g), 상기 (g)단계의 평판체를 5~7일간 외기 20℃에서 완전건조하는 자연건조단계(h), 상기 (h)단계의 평판체를 소정의 크기로 재단하는 단계(i)로 이루어지는 제조방법으로 만들어지며, 이를 좀더 자세하게 설명하면 다음과 같다.The non-combustible board 100 is a step of applying a mixed solution of 80% by weight of magnesium oxide, 20% by weight of magnesium chloride and a mixture of water in a volume ratio of 80%: 20% to a prepared base plate with a thickness of 1 mm ( a), and (b) laying a glass fiber net on the bottom plate of step (a), 60% by weight of magnesium oxide, 20% by weight of magnesium chloride, 10% by weight of sawdust, perlite on the bottom plate of step (b) (C) applying a glass fiber network to the mixture of step (c), and (c) the step of giving a mixture of 10% by weight of the powder mixture and water in a volume ratio of 80%: 20%, respectively (d) (E) molding the mixture into a flat plate having a predetermined size, including a net, and first drying the flat plate at 80% humidity for 12 hours in a drying chamber having a humidity of 70% to 80% and a temperature of 30 ° C to 40 (f), secondary drying the flat plate of step (f) to 95% drying for 12 hours in a drying chamber having a temperature of 30 ° C. to 40 ° C. (g), the natural drying step (h) of completely drying the flat plate of step (g) at 20 ° C. for 5 to 7 days, and cutting the flat plate of step (h) to a predetermined size (i) It is made of a manufacturing method consisting of, described in more detail as follows.

먼저,분말상태( 180mesh)의 산화마그네슘과 염화마그네슘을 각각 중량비 80중량%: 20중량%로 혼합한 분체원료를 형성하고,상기 분체원료와 물을 각각 부피비 80% : 20%로 혼합한 후, 그 혼합물을 약 1mm정도의 두께로 밑판의 상면을 고루 도포한다(a단계).First, to form a powder raw material in the form of a powder (180 mesh) of magnesium oxide and magnesium chloride in a weight ratio of 80% by weight: 20% by weight, respectively, and after mixing the powder raw material and water in a volume ratio of 80%: 20%, respectively, Apply the mixture evenly to the top surface of the base plate to a thickness of about 1mm (step a).

이때, 상기 분체원료와 물의 혼합물은 그 상태가 죽과 같은 유동성을 갖는 유동액상태이다.At this time, the mixture of the powder raw material and the water is a fluid state having the fluidity such as porridge.

또한, 상기 혼합물은 산화마그네슘 및 황산마그네슘과 물이 반응하여 40℃의 열을 발생하며 자체 경화반응을 한다.In addition, the mixture reacts with magnesium oxide, magnesium sulfate, and water to generate heat at 40 ° C., and performs self curing reaction.

따라서, 상기 밑판은 일정한 내열성을 갖추고 화학적으로 안정적인 합성수지재료로 형성된 것을 사용함이 바람직하다.Therefore, it is preferable to use the base plate formed of a synthetic resin material having a constant heat resistance and chemically stable.

그리고 상기 산화마그네슘의 순도는 90%, 염화마그네슘의 순도는 28%이며, 상기 산화마그네슘은 분말상태로 분쇄 전에 광석상태에서 900℃로 가열하여 0.50%정도 팽창되도록 하므로서, 이 후 설명되는 판상체의 건조시 팽창으로 인하여 그 표면이 갈라지는 것을 미연에 방지할 수 있도록 한다.And the purity of the magnesium oxide is 90%, the purity of magnesium chloride is 28%, the magnesium oxide is heated to 900 ℃ in the ore state before crushing to a powder state to expand about 0.50%, so that This prevents the surface from cracking due to expansion during drying.

상기 (b)단계에서 유리섬유망은 4*4/㎠, 6*6/㎠메쉬(mesh)로 구성된 유리섬 유망으로서 밑판의 상면에 고루 밀착되도록 깔아주되, 그 넓이는 밑판의 상면보다 다소 적은 크기로 형성함이 바람직하다. In the step (b), the glass fiber net is made of 4 * 4 / cm 2 and 6 * 6 / cm 2 meshes, and the glass fiber is laid to be evenly adhered to the upper surface of the base plate, but the width thereof is somewhat smaller than the top surface of the base plate. It is preferable to form in size.

이와같은 상태에서 상기 유리섬유망의 다공으로 (a)단계에서 밑판의 상면에 뿌려진 혼합액이 침투된 상태가 되며, 그 상태에서 상술한 바와같이 혼합액의 경화반응으로 혼합액이 굳어지면서 유리섬유망과 일체형으로 결합된다.In this state, the mixed solution sprayed on the upper surface of the base plate is infiltrated into the pores of the glass fiber net in step (a), and the mixed solution is solidified by the curing reaction of the mixed solution as described above. Are combined.

상기 (c) 단계에서 상기 산화마그네슘,염화마그네슘,톱밥 및 펄라이트를 각각 중량비 60중량%: 20중량%:10중량%:10중량%로 분체혼합하고, 그 분체혼합물과 물을 부피비 80중량%: 20중량%로 혼합 한 후, 상기 혼합물을 상기 (b)단계의 유리섬유망 상에 일정량을 부여한다.In the step (c), the magnesium oxide, magnesium chloride, sawdust and pearlite are respectively mixed in a weight ratio of 60% by weight: 20% by weight: 10% by weight: 10% by weight, and the powder mixture and water in a volume ratio of 80% by weight: After mixing to 20% by weight, the mixture is given a predetermined amount on the glass fiber network of step (b).

이때, 상기 분체혼합물과 물의 혼합물은 적당한 외력을 가하여 그 형태를 소성변형할 수 있는 진흙과 같은 상태이다.At this time, the mixture of the powder mixture and water is a mud-like state that can plastically deform the form by applying an appropriate external force.

한편, 상기 분체혼합원료에는 필요에 따라 미량의 첨가제를 더 추가하는데 상기 첨가제는 탄산칼슘과 플라이 애쉬(fly ashi)로서, 상기 탄산칼슘은 다른원료와 상대적으로 비중이 낮아 분체혼합물과 물을 혼합한 상태에서 상측 표면으로 부상되여 그 면을 매끄럽게하는 코팅제 역활을 하며, 상기 플라이 애쉬는 보강 및 슬러리가 회색을 띠게하는 염료제 역활을 한다.Meanwhile, a small amount of an additive is added to the powder mixture raw material as needed. The additive is calcium carbonate and fly ash, and the calcium carbonate has a relatively low specific gravity with other raw materials, thus mixing the powder mixture with water. It acts as a coating that floats to the top surface in the state to smooth the surface, and the fly ash acts as a dye that reinforces and renders the slurry grey.

이후, 상기 혼합물의 상면에 유리섬유망을 도포한 상태(d 단계)에서 상기 유리섬유망을 포함하여 혼합물을 일정크기의 평판체로 성형한다(e 단계).Thereafter, the glass fiber net is coated on the upper surface of the mixture (d step), and the mixture is formed into a flat plate having a predetermined size (step e).

이때, (e) 단계에서 상기 혼합물은 로울러와 같은 가압 회전체를 사용하여 일정크기의 평판체로 형성함이 바람직하며, 그 넓이는 밑판의 넓이보다 조금 적게 형성한다.At this time, in the step (e), the mixture is preferably formed into a flat plate of a predetermined size using a pressurized rotary body such as a roller, and the width thereof is slightly smaller than the width of the base plate.

또한, 상기 (c),(d),(e)단계를 반복적으로 행하여 유리섬유망이 다층으로 내재되는 평판체를 형성할 수 있다. In addition, by repeating the steps (c), (d), (e) it is possible to form a flat body in which the glass fiber network is embedded in a multi-layer.

이와 같이 유리섬유망이 다층으로 평판체에 내재하는 것은 이하, 설명되는 산화마그네슘보드의 굽힘파괴강도를 향상할 수 있도록 하는 것이다.In this way, the glass fiber network is embedded in the flat plate in multiple layers so as to improve the bending fracture strength of the magnesium oxide board described below.

한편, 상기 (d)단계와 (e)단계 사이에서 유리섬유망과 더불어 티슈(tissue)와 같이 매우 얇은 부직포를 추가함므로써, 혼합물을 평판체로 성형시 사용되는 성형로울러의 표면에 상기 혼합물이 접착되는 것을 방지하고, 상기 부직포가 도포된 상기 평판체의 표면을 매끄럽게 성형할 수 있게 된다.On the other hand, between the step (d) and (e) by adding a very thin nonwoven fabric, such as tissue (tissue) in addition to the glass fiber mesh, the mixture is adhered to the surface of the molding roller used when forming the mixture into a flat plate The surface of the flat body to which the nonwoven fabric is applied can be smoothly formed.

그리고 상기 (e)단계에서 유리섬유망과 부직포는 상술한 바와같이 혼합물에 소지된 산화마그네슘 또는 염화마그네슘과 물이 경화반응 함에 따라 평판체에 일체형으로 결합된다.In the step (e), the glass fiber net and the nonwoven fabric are integrally bonded to the plate as the magnesium oxide or magnesium chloride and water carried in the mixture are cured as described above.

이후, 상기 평판체는 1,2,3차의 건조단계를 걸쳐서 일정한 강도를 갖는 단단한 판상체가 된다.Thereafter, the flat body becomes a rigid plate-like body having a constant strength through the first and second drying steps.

이를 자세하게 살펴보면 먼저, 상기 (e)단계에서의 상기 평판체는 그 형태가 훼손되지 않도록 밑판과 함께 건조실로 이송하여 1차적으로 건조한다(f단계).Looking at this in detail, first, the flat plate in the step (e) is first transported to the drying chamber with a base plate so that its shape is not damaged (step f).

이때, 상기 평판체는 자체적으로 높은 비율의 수분을 함유하고 있으며 또한 구성성분인 산화마그네슘과 염화마그네슘이 물과 혼합되여 경화반응을 하며 그에 따라 자체적으로 40℃정도의 열이 발생되므로, 외부와의 급격한 온도차이 및 습도차에서 건조시 균열 등이 발생하는 것을 방지하도록 하기 위하여 상기 건조실은 습 도 70%~80%, 온도 30℃~40℃의 조건을 구비하도록 하며, 이와같은 상태에서 평판체는 부착된 밑판을 이용하여 건조실로 이동한 후,소정의 강도를 갖도로 12시간동안 80% 정도 건조한다.At this time, the plate itself contains a high proportion of moisture, and the components magnesium oxide and magnesium chloride are mixed with water to perform a curing reaction, thereby generating heat of about 40 ° C. In order to prevent cracks, etc. during drying in a sudden temperature difference and humidity difference, the drying chamber is provided with a humidity of 70% to 80%, a temperature of 30 ℃ ~ 40 ℃, in this state After transferring to the drying chamber by using the attached base plate, it is dried for about 80% for 12 hours with a predetermined strength.

이후, 상기 평판체와 밑판을 분리한 상태에서, 평판체는 2차적으로 30℃~40℃의 실내 온도를 갖는 건조실에서 12시간동안 95% 건조한다(g단계).Subsequently, in a state where the flat plate and the base plate are separated, the flat plate is secondarily dried at 95% for 12 hours in a drying chamber having a room temperature of 30 ° C. to 40 ° C. (step g).

이때, 상기 평판체는 1차건조(f단계)와 2차건조(g단계)까지 수분을 포함하고 있어, 자체 경화반응으로 40℃정도의 열이 자체적으로 발생되므로, 그에 따라 건조실의 온도를 30℃~40℃로 유지하여 급격한 온도차에 따른 건조시 균열발생을 방지하도록 하는 것이다.At this time, the flat plate contains water up to the first drying (step f) and the second drying (step g), the heat of about 40 ℃ is generated by the self-curing reaction itself, accordingly the temperature of the drying chamber 30 Maintaining at ℃ ~ 40 ℃ to prevent the occurrence of cracks during drying due to rapid temperature difference.

이후, 3차적으로 실외에서 일정기간 상온에서 완전건조하는 자연건조(h단계)를 통하여 평판체의 건조작업이 끝나게 된다.Thereafter, the drying of the flat plate is completed through the natural drying (h stage) of completely drying at room temperature for a certain period of time outdoors.

이때, 자연건조는 5~7일간 20℃외기에서 행하여 완전건조함이 바람직하다.At this time, the natural drying is preferably carried out in 20 ℃ outdoor air for 5-7 days to completely dry.

이와같이 완전건조된 (i)단계의 평판체는 최종적으로 소정의 크기로 재단(j단계)하여 일정 규격의 치수를 갖는 불연성 보드로 제품화된다.The completely dried flat plate of step (i) is finally cut into a predetermined size (step j) and commercialized into a nonflammable board having dimensions of a predetermined standard.

이와같은 방법으로 제품화된 불연성 보드(100)는 상기 도 1, 2를 참조하여 설명한 바와같으며, 더불어 설명하며 그 두께를 3mm ~ 30mm로 형성함이 바람직하며, 상/하면에만 유리섬유망(120)이 함침된 상태에서 두께가 6mm인 경우에 270Ν/㎠의 굽힘파괴하중을 갖는다.The non-combustible board 100 manufactured in such a manner is as described with reference to FIGS. 1 and 2 above, and the description thereof is preferably performed with a thickness of 3 mm to 30 mm. ) Has a bending failure load of 270 N / cm2 when the thickness is 6 mm.

따라서, 본 발명인 불연성 보드(100)는 혼합물(110)에 상기 유리섬유망(120)을 다층으로 심재하므로써, 상기 굽힘파괴하중을 향상할 수 있게된다.Therefore, the non-combustible board 100 of the present invention can improve the bending fracture load by interposing the glass fiber mesh 120 in a multi-layered mixture 110.

또한, 상기 불연성 보드(100)의 구성원료로 사용된 염화마그네슘을 대체하여 황산마그네슘을 사용할 수 있다.In addition, magnesium sulfate may be used in place of magnesium chloride used as a member of the non-combustible board 100.

상기 황산마그네슘은 염화마그네슘에 비하여 상대적으로 고가이지만 상기 염화마그네슘은 알카리성이고 상기 황산마그네슘은 중성이다.The magnesium sulfate is relatively expensive compared to magnesium chloride, but the magnesium chloride is alkaline and the magnesium sulfate is neutral.

따라서, 상기 황산마그네슘을 원료로 포함하는 불연성 보드는 염화마그네슘을 원료로 포함하는 것보다 화학적으로 안정적이어서, 그 수명이 길고 적용범위가 넓은 장점을 갖고있다.Therefore, the non-combustible board containing magnesium sulfate as a raw material is more chemically stable than including magnesium chloride as a raw material, and thus has a long life and wide application range.

이상에서 살펴본 바와 같이 본 발명은 화재시 방화성능 및 강도가 우수하고, 표면이 매끄러워서 높은 심미감을 갖는 효과가 있다.As described above, the present invention is excellent in fire protection performance and strength in case of fire, and has a smooth aesthetic effect.

또한, 유리섬유망을 산화마그네슘의 소지층(혼합물)에 다층으로 심재하므로써 불연성 보드의 자체강도를 소정의 범위 내에서 저렴한 경비로 필요에 따라 간단하게 조절할 수 있는 효과가 있다.In addition, since the fiberglass network is stacked in a multi-layered layer (mixture) of magnesium oxide, the strength of the nonflammable board can be easily adjusted as needed at a low cost within a predetermined range.

또한, 고순도의 산화마그네슘을 사용함에 따라 강도가 탁월하다.In addition, the use of high purity magnesium oxide is excellent in strength.

Claims (10)

산화마그네슘60중량%, 염화마그네슘20중량%, 톱밥10중량%, 펄라이트10중량%의 분체혼합물과 물을 각각 부피비 80%:20%로 혼합한 혼합물을 그 상면과 하면에 유리섬유망을 침합하여 소정의 형상으로 성형가공 및 건조하여 이루어지는 불연성 보드와 상기 혼합물의 상면에 유리섬유망과 더불어 부직포를 더 구비하는 것을 특징으로 하는 불연성 보드60% by weight of magnesium oxide, 20% by weight of magnesium chloride, 10% by weight of sawdust, and 10% by weight of pearlite were mixed with a mixture of water in a volume ratio of 80%: 20%, respectively, and the glass fibers were infiltrated on the upper and lower surfaces thereof. Non-combustible board formed by molding and drying to a predetermined shape and non-combustible board, characterized in that further comprising a non-woven fabric with a glass fiber net on the upper surface of the mixture 삭제delete 삭제delete 삭제delete 삭제delete 산화마그네슘80중량%, 염화마그네슘20중량%의 분체혼합물과 물을 각각 부피비 80%: 20%로 혼합한 혼합액을 준비된 일정크기의 밑판에 1mm두께로 도포하는 단계(a), 및(A) applying a mixed solution of 80% by weight of magnesium oxide and 20% by weight of magnesium chloride and a mixture of water in a volume ratio of 80%: 20% to a prepared base plate at a thickness of 1 mm, and 상기 (a)단계의 밑판에 유리섬유망을 깔아주는 단계(b),(B) laying a glass fiber net on the bottom plate of step (a), 상기 (b)단계의 밑판 상에 산화마그네슘60중량%, 염화마그네슘20중량%, 톱밥10중량%, 펄라이트10중량%의 분체혼합물과 물을 각각 부피비 80%:20%로 혼합한 혼합물을 부여하는 단계(c),To give a mixture of 60% by weight magnesium oxide, 20% by weight magnesium chloride, 10% by weight sawdust, 10% by weight perlite powder and water in a volume ratio of 80%: 20% on the bottom plate of step (b) Step (c), 상기 (c)단계의 혼합물에 유리섬유망을 도포하고 그 위에 부직포를 더 도포하는 단계(d),(D) applying a glass fiber net to the mixture of step (c) and further applying a nonwoven fabric thereon; 상기 유리섬유망을 포함하여 혼합물을 일정한 크기의 평판체로 성형하는 단계(e),(E) molding the mixture into a flat plate having a predetermined size, including the glass fiber network; 상기 평판체 내에 함유된 수분을 제거하기 위하여 상기 평판체를 밑판과 함께 습도 70%~80%, 온도 30℃~40의 건조실에서 12시간 동안 건조도 80%로 1차 건조하는 단계(f),(F) first drying the flat plate with a base plate at a humidity of 70% to 80% and a drying chamber of temperature 30 ° C. to 40 for 12 hours to remove water contained in the flat plate at a drying degree of 80% for 12 hours; 상기 (f)단계의 평판체를 밑판을 제거한 상태에서 온도 30℃~40℃의 건조실에서 12시간 동안 건조도 95%로 2차 건조하는 단계(g),(G) a second step of drying the flat plate of step (f) in a drying chamber at a temperature of 30 ° C. to 40 ° C. for 12 hours with a dryness of 95% for 12 hours in a state where the bottom plate is removed (g), 상기 (g)단계의 평판체를 상온에서 완전건조하는 자연건조 단계(h)를 포함하여 이루어지는 것을 특징으로 하는 불연성 보드의 제조방법.Method for producing a non-combustible board, characterized in that it comprises a natural drying step (h) of completely drying the flat plate of step (g) at room temperature. 삭제delete 삭제delete 삭제delete 삭제delete
KR20060045770A 2006-05-22 2006-05-22 A uninflammable board and the manufacturing KR100728746B1 (en)

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KR100825487B1 (en) 2007-03-16 2008-04-25 주식회사 예원황토보드 Indoor fire door including magnesium board
KR100842872B1 (en) 2007-07-04 2008-07-02 심재홍 Ocher board and a process for manufacturing
KR100995606B1 (en) 2010-07-23 2010-11-19 신재훈 Environment friendly fireproof panel
KR101400860B1 (en) * 2013-11-25 2014-05-29 주식회사 이노텍 The manufacturing method for construction board of semi-nonflammable and nature-friendly using maarlite
WO2015051419A1 (en) * 2013-10-10 2015-04-16 Australian Fireboard Company Pty Ltd Composite board comprising magnesium oxide and magnesium chloride
US20180093448A1 (en) * 2015-03-27 2018-04-05 Magnesium Oxide Board Corporation Pty Ltd A construction board and a method of manufacture
CN110357554A (en) * 2019-07-26 2019-10-22 郑州三迪建筑科技有限公司 A kind of application method of plant fiber in wire side plasterboard
KR20210025141A (en) * 2019-08-26 2021-03-09 주식회사 더세이프 Cultural property conservation warehouse walls for safety Panel

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KR200392766Y1 (en) 2005-02-23 2005-08-19 이필우 Interior wood wall panel
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100825487B1 (en) 2007-03-16 2008-04-25 주식회사 예원황토보드 Indoor fire door including magnesium board
KR100842872B1 (en) 2007-07-04 2008-07-02 심재홍 Ocher board and a process for manufacturing
KR100995606B1 (en) 2010-07-23 2010-11-19 신재훈 Environment friendly fireproof panel
WO2015051419A1 (en) * 2013-10-10 2015-04-16 Australian Fireboard Company Pty Ltd Composite board comprising magnesium oxide and magnesium chloride
AU2014334513B2 (en) * 2013-10-10 2018-03-29 Australian Fireboard Company Pty Ltd Composite board comprising magnesium oxide and magnesium chloride
KR101400860B1 (en) * 2013-11-25 2014-05-29 주식회사 이노텍 The manufacturing method for construction board of semi-nonflammable and nature-friendly using maarlite
US20180093448A1 (en) * 2015-03-27 2018-04-05 Magnesium Oxide Board Corporation Pty Ltd A construction board and a method of manufacture
AU2016240394B2 (en) * 2015-03-27 2020-08-06 Magnesium Oxide Board Corporation Pty Ltd A construction board and a method of manufacture
CN110357554A (en) * 2019-07-26 2019-10-22 郑州三迪建筑科技有限公司 A kind of application method of plant fiber in wire side plasterboard
KR20210025141A (en) * 2019-08-26 2021-03-09 주식회사 더세이프 Cultural property conservation warehouse walls for safety Panel
KR102259614B1 (en) 2019-08-26 2021-06-03 주식회사 더세이프 Cultural property conservation warehouse walls for safety Panel

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