KR20220159650A - Eco-Friendly Nonflammable Fire-resistant Coating Composition Using Water as Solvent and a Kit for Preparing the Same - Google Patents

Eco-Friendly Nonflammable Fire-resistant Coating Composition Using Water as Solvent and a Kit for Preparing the Same Download PDF

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KR20220159650A
KR20220159650A KR1020210067504A KR20210067504A KR20220159650A KR 20220159650 A KR20220159650 A KR 20220159650A KR 1020210067504 A KR1020210067504 A KR 1020210067504A KR 20210067504 A KR20210067504 A KR 20210067504A KR 20220159650 A KR20220159650 A KR 20220159650A
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weight
parts
expanded graphite
wool
coating composition
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변무원
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변무원
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C09D5/185—Intumescent paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/541—Silicon-containing compounds containing oxygen
    • C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20—Diluents or solvents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The present invention discloses a nonflammable fire-resistant paint composition containing water as a solvent, a silane compound, expanded graphite, inorganic wool, and sugar. The silane compound contains a small amount of acid added thereto. When heated at a temperature of 150℃ or higher, the expanded graphite can expand to 100-300 times its size and can have a particle size of 60-300 mesh. The inorganic wool is preferably glass wool, mineral wool, or ceramic wool and has a fiber length of 0.1-5.0 mm. The nonflammable fire-resistant paint composition of the present invention contains, with respect to each 100 parts by weight of water, 150-400 parts by weight of a silane compound, 30-250 parts by weight of expanded graphite, 1-100 parts by weight of inorganic wool, and 100-400 parts by weight of sugar. Since the fire-resistant paint composition of the present invention is converted into a gel state within a few hours, the fire-resistant paint composition is provided in the form of a composition kit. The composition kit of the present invention comprises: a mixture (I) obtained by mixing sugar and expanded graphite with water and a mixture (II) obtained by mixing inorganic wool with a silane compound having a small amount of acid added thereto. According to the present invention, waste is used as a solvent so that the nonflammable fire-resistant paint composition can reduce the amount of toxic gas that is discharged.

Description

물을 용매로 한 친환경 불연성 내화 도료 조성물 및 그 조성물 키트{Eco-Friendly Nonflammable Fire-resistant Coating Composition Using Water as Solvent and a Kit for Preparing the Same}Eco-Friendly Nonflammable Fire-resistant Coating Composition Using Water as Solvent and a Kit for Preparing the Same}

본 발명은 철재, 목재, 합판, 종이, 알미늄 시트(sheet)(알미늄 호일(foil)), 직물 시트(sheet), 부직포 시트, 스티로폼, 우레탄폼, PE 발포폼(polyethylene expanded form), 세라믹 울 판재, 미네랄 울 판재, 글라스 울 판재 등과 같은 각종 건축자재에 적용하거나 건축물의 내벽 또는 외벽에 도포하여 불연성 또는 난연성을 부여하기 위한 내화 도료 조성물에 관한 것이다.The present invention is a steel material, wood, plywood, paper, aluminum sheet (sheet) (aluminum foil (aluminum foil)), fabric sheet (sheet), non-woven fabric sheet, Styrofoam, urethane foam, PE foam (polyethylene expanded form), ceramic wool plate It relates to a fire-resistant coating composition for imparting incombustibility or flame retardancy by applying to various building materials such as mineral wool boards, glass wool boards, etc., or to the inner or outer walls of buildings.

건축물의 내벽 또는 외벽에 도포하거나 각종 건축자재에 도포하여 불연성 또는 난연성의 도막을 형성하기 위한 불연성 코팅 조성물은 다양한 방법으로 개발되고 있다. A nonflammable coating composition for forming a nonflammable or flame retardant coating film by applying it to the inner or outer wall of a building or applying it to various building materials has been developed in various ways.

불연성 코팅 조성물을 제조하기 위한 한 방법으로 팽창흑연(expandable graphite)을 사용하는 방법이 있다. 팽창흑연은 천연 인편흑연을 산성재료로 화학 처리를 하여 흑연의 층간에 산성 화합물을 침투시켜 건조한 것으로 150℃ 이상으로 가열하면 200∼300배로 팽창하는 것으로 60∼300메쉬(mesh)의 입도를 갖는다. 팽창흑연은 그 자체가 불연성이기 때문에 불연 또는 난연 제품에 다양하게 적용된다.As one method for preparing an incombustible coating composition, there is a method using expandable graphite. Expanded graphite is a chemical treatment of natural scale graphite with an acidic material to infiltrate an acidic compound between layers of graphite and dried. Since expanded graphite itself is nonflammable, it is applied to various nonflammable or flame retardant products.

한국특허 제0982176호는 카르복실산 유도체를 함유하는 인계 난연제, 금속산화물, 및 팽창흑연으로 구성되고, 금속산화물이 산화나트륨, 산화마그네슘, 산화칼슘, 산화알루미늄, 산화바륨 및/또는 산화아연인 불연 단열성의 페이스트 조성물을 개시한다.Korean Patent No. 0982176 discloses a phosphorus-based flame retardant containing a carboxylic acid derivative, a metal oxide, and expanded graphite, wherein the metal oxide is sodium oxide, magnesium oxide, calcium oxide, aluminum oxide, barium oxide, and/or zinc oxide. An insulating paste composition is disclosed.

한국특허 제0996720호는 아크릴계 수지 및/또는 비닐계 수지의 바인더 수지, 물, 팽창성 흑연, 및 백등유로 이루어지고, 건조속도와 장기 보관성이 우수한 불연성 도막 형성용 조성물을 개시하고, 이 조성물로부터 얻어진 불연성 도막은 불연성뿐만 아니라 내수성, 내열성, 및 기계적 강도가 우수한 것으로 개시한다. Korean Patent No. 0996720 discloses a composition for forming an incombustible coating film composed of acrylic resin and/or vinyl resin binder resin, water, expandable graphite, and white kerosene, and has excellent drying speed and long-term storage property, and obtained from the composition The incombustible coating film is disclosed as being excellent in water resistance, heat resistance, and mechanical strength as well as incombustibility.

한국특허 제1601708호는 팽창흑연을 200~1,000℃로 가열하여 팽창시킨 흑연을 코팅제에 침잠하고, 상기 코팅제 내에 침잠된 팽창된 흑연을 그 상태에서 분쇄하여 불연성 도막 코팅제를 제조하는 방법을 개시한다. Korean Patent No. 1601708 discloses a method for producing an incombustible film coating by heating expanded graphite at 200 to 1,000 ° C. to immerse expanded graphite in a coating agent, and pulverizing the expanded graphite immersed in the coating agent in that state.

한국특허공개 제2019-0111598호는 페놀수지 혼합물을 발포 성형한 페놀 폼의 표면에 팽창흑연, 접착성 수지, 및 유기용매를 혼합한 조성물을 도포하여 페놀 폼에 불연성의 팽창흑연 도막을 형성하는 방법을 개시한다.Korean Patent Publication No. 2019-0111598 discloses a method of forming a nonflammable expanded graphite coating film on phenol foam by applying a mixture of expanded graphite, adhesive resin, and organic solvent to the surface of a phenol foam formed by foaming and molding a phenol resin mixture. Initiate.

한국특허 제1647070호에는 건축 구조물에 관통되게 형성된 관통공의 내주면과 그 관통공을 통과하는 배관 사이의 공간에 설치되어, 화재시 열에 의해 팽창하면서 관통공의 내주면과 배관 사이의 공간을 차폐하는 열팽창성 충전재로, 이소시아네이트를 함유하는 A액; 및 폴리올, 팽창흑연(Expandable Graphite), 및 설탕인산캐러멜 또는 설탕실리카캐러멜을 함유하는 B액의 혼합에 의해 조제되는 충전재를 개시한다.Korean Patent No. 1647070 discloses a thermal expansion that is installed in the space between the inner circumferential surface of a through-hole formed in a building structure and a pipe passing through the through-hole, and expands by heat in case of fire to shield the space between the inner circumferential surface of the through-hole and the pipe. Liquid A containing isocyanate as an active filler; and a filler prepared by mixing a polyol, expandable graphite, and Liquid B containing sugar phosphate caramel or sugar silica caramel.

본 발명자는 기재(substrate) 표면에 유리섬유 직물을 물유리와 팽창흑연을 혼합한 조성물로 접착시키고, 상기 접착된 유리섬유 직물에 물유리와 결합하여 겔화시키기 위한 겔화제 조성물을 도포하여 불연성 코팅층이 형성된 것을 특징으로 하는 건축용 판넬을 개발하여 특허출원 제2018-20690호로 출원하였다(2018.02.21. 출원).The present inventors have found that an incombustible coating layer is formed by bonding a glass fiber fabric to the surface of a substrate with a composition in which water glass and expanded graphite are mixed, and applying a gelling agent composition for gelation by combining water glass to the bonded glass fiber fabric. A characteristic architectural panel was developed and filed as Patent Application No. 2018-20690 (applied on February 21, 2018).

팽창흑연은 그 자체가 불연성이기 때문에 불연 또는 난연성 도막을 형성하는 코팅 조성물의 중요한 성분이지만, 화재로 인하여 도막이 연소되는 경우, 비산(飛散)하는 문제가 있다. 팽창흑연은 150℃ 이상으로 가열되면 200∼300배로 팽창하기 때문에, 팽창된 흑연이 비산하지 않고 고착된 흑연층을 형성한다면 그 흑연층으로 인하여 방염, 차열, 단열 효과가 나타나서 더 이상의 연소가 진행되지 않을 수 있다. 그러나 팽창된 흑연이 비산해버리면 방염, 차열, 단열 효과는 기대할 수 없고, 연소가 진행되어 화재가 증폭된다. Since expanded graphite itself is nonflammable, it is an important component of a coating composition that forms a nonflammable or flame retardant coating film, but when the coating film is burned due to a fire, there is a problem of scattering (飛散). Since expanded graphite expands 200 to 300 times when heated above 150℃, if the expanded graphite does not scatter and forms a fixed graphite layer, the graphite layer has flame retardant, heat shield, and insulation effects, so that further combustion does not proceed. may not be However, if the expanded graphite is scattered, flame retardant, heat shielding, and insulating effects cannot be expected, and combustion proceeds, resulting in amplification of the fire.

불연성 코팅 조성물의 또다른 문제점은 기재에 형성된 도막의 두께가 얇아야 한다는 점이다. 종래의 불연성 코팅 조성물은 도막의 두께가 3mm 이상 20mm 정도이지만 100mm가 넘는 경우도 있다. 이처럼 도막의 두께가 두꺼워지면, 시간이 경과함에 따라 도막 자체의 하중에 의해 기재로부터 분리되는 탈리 현상이 발생한다. 특히 벽면이 아닌 천정에 도막을 형성하는 경우에는 탈리 현상이 더 심각하다. 그런데 도막의 두께가 얇으면 불연성이 양호하지 못한 문제가 발생한다. 이러한 상반되는 이유 때문에 도막의 두께가 얇으면서 우수한 불연성을 갖는 코팅 조성물의 개발은 아직까지 성공하지 못하고 있다. Another problem of the incombustible coating composition is that the thickness of the coating film formed on the substrate must be thin. Conventional incombustible coating compositions have a coating film thickness of 3 mm or more and about 20 mm, but sometimes exceed 100 mm. As such, when the thickness of the coating film becomes thick, a detachment phenomenon occurs in which the coating film is separated from the substrate by the load of the coating film itself over time. In particular, in the case of forming a coating film on the ceiling rather than the wall, the detachment phenomenon is more serious. However, when the thickness of the coating film is thin, a problem of poor incombustibility occurs. Because of these conflicting reasons, the development of a coating composition having a thin film thickness and excellent incombustibility has not yet succeeded.

불연성 코팅 조성물의 또다른 문제점은 연소시 시안화수소, 다이옥신, 비스페놀A, 불화수소 기타 유독가스가 대량 방출된다는 점이다. 이러한 유해물질 배출을 줄이기 위하여 바인더 수지 수용액의 중량을 줄이면 접착력이 약해져 탈리 현상이 더 심해진다. 이러한 이유 때문에 바인더 수지 수용액을 사용하지 않으면서 우수한 불연성을 갖는 코팅 조성물의 개발은 아직까지 성공하지 못하고 있다. Another problem of the nonflammable coating composition is that a large amount of hydrogen cyanide, dioxin, bisphenol A, hydrogen fluoride and other toxic gases are released during combustion. If the weight of the binder resin aqueous solution is reduced in order to reduce the emission of these harmful substances, the adhesive force is weakened and the detachment phenomenon becomes more severe. For this reason, the development of a coating composition having excellent incombustibility without using a binder resin aqueous solution has not yet succeeded.

본 발명자는 불연성 도막이 연소되는 경우에 팽창흑연이 비산하지 않고 팽창되어 고착된 흑연층을 형성함으로써 연소가 더 이상 진행되지 않고, 도막이 얇게 형성되더라도 불연성이 우수한 본 발명의 팽창흑연을 함유한 불연성 코팅 조성물을 개발하여 특허출원 제2020-72283호로 출원하였다(2020.06.15. 출원).When the non-flammable coating film is burned, the expanded graphite does not scatter and expands to form a fixed graphite layer, so that combustion does not proceed any further and the non-flammable coating composition containing the expanded graphite of the present invention has excellent non-combustibility even when the coating film is formed thinly. was developed and filed as Patent Application No. 2020-72283 (2020.06.15. application).

본 발명자는 또한 불연성 도막이 연소되는 경우에 단열성능 및 팽창흑연의 비산이 더 개선되고, 1,000∼1,200℃의 고온에서 발포된 팽창흑연 발포층이 3시간 이상 탈리되지 않는 불연성 내화 도료 조성물 및 이를 이용한 내화 충전재를 개발하여 특허출원 제2020-174099호로 출원하였다(2020.12.14. 출원).The present inventors also provide a nonflammable fireproof paint composition in which the insulation performance and scattering of expanded graphite are further improved when the nonflammable coating film is burned, and the expanded graphite foam layer foamed at a high temperature of 1,000 to 1,200 ° C. is not detached for more than 3 hours, and fireproofing using the same A filler was developed and filed as Patent Application No. 2020-174099 (2020.12.14. Application).

특허출원 제2020-174099호의 도료 조성물은 단열성능이 우수하고, 연소시 팽창흑연이 비산되지 않으며, 장시간 연소시 탈리 현상이 없는 장점이 있지만, 용매로서 수지 수용액을 사용하기 때문에 연소시 유해가스가 배출된다는 것을 알게 되었다. 즉 수지 수용액에 아크릴 수지, 우레탄 수지, 초산비닐 수지, 에폭시 수지 등이 사용되기 때문에, 이들로부터 시안화수소, 다이옥신, 비스페놀 A, 불화수소 등의 유해가스가 배출된다.The coating composition of Patent Application No. 2020-174099 has the advantage of excellent insulation performance, no scattering of expanded graphite during combustion, and no desorption phenomenon during long-term combustion, but emits harmful gases during combustion because it uses an aqueous resin solution as a solvent. I found out that it will be That is, since acrylic resin, urethane resin, vinyl acetate resin, epoxy resin, etc. are used in the resin aqueous solution, harmful gases such as hydrogen cyanide, dioxin, bisphenol A, and hydrogen fluoride are discharged from them.

본 발명자는 연소시에 유해가스를 거의 배출하지 않는 불연성 내화 도료 조성물을 개발하여 특허출원 제2021-1436호로 출원하였다(2021.01.06. 출원). 특허출원 제2021-1436호의 내화 도료 조성물은 10mm 이상의 두께로 발포된 후에도 탈리되는 현상은 발생하지 않았다. 하지만, 연소 시간이 경과하면서 발포층이 비산하여 발포층의 두께가 점차 얇아지는 현상이 발생하였다. 예를 들어, 1,000℃ 이상의 고온에서 발포된 팽창흑연 발포층의 최초 두께는 약 15mm 정도이었으나, 1시간 후에는 약 13mm 정도가 되었고, 2시간 후에는 약 8mm 정도가 되었고, 3시간 후에는 약 5mm 정도가 되었다. 이는 연소 시간이 경과함에 따라 발포층이 비산한 결과로서, 발포층의 두께가 얇아질수록 열전도는 증가하여 단열이나 내화 성능이 그만큼 저하된다.The present inventor developed a non-combustible fireproof paint composition that hardly emits harmful gases during combustion and applied for Patent Application No. 2021-1436 (filed on January 6, 2021). The fire-resistant paint composition of Patent Application No. 2021-1436 did not exhibit a detaching phenomenon even after being foamed to a thickness of 10 mm or more. However, as the burning time elapsed, the foam layer was scattered and the thickness of the foam layer gradually decreased. For example, the initial thickness of the expanded graphite foam layer foamed at a high temperature of 1,000 ° C. or higher was about 15 mm, but after 1 hour it became about 13 mm, after 2 hours it became about 8 mm, and after 3 hours it became about 5 mm It became about. This is a result of the foam layer scattering as the combustion time elapses, and as the thickness of the foam layer becomes thinner, heat conduction increases and the heat insulation or fire resistance performance decreases accordingly.

본 발명자는 특허출원 제2021-1436호의 내화 도료 조성물의 결점을 보완하여 1,000℃ 이상의 고온에서 발포된 팽창흑연 발포층이 최소 2시간 후에도 비산하지 않고, 용매로 물을 사용함으로써 연소시에 유해가스를 배출하지 않는 본 발명의 불연성 내화 도료 조성물을 개발하기에 이른 것이다.The inventors of the present invention compensate for the shortcomings of the fireproof paint composition of Patent Application No. 2021-1436, so that the expanded graphite foam layer foamed at a high temperature of 1,000 ° C or higher does not scatter even after at least 2 hours, and by using water as a solvent, harmful gases are released during combustion. It has come to develop the non-flammable fireproof coating composition of the present invention that does not discharge.

본 발명의 목적은 건축물의 외벽 또는 내벽을 비롯하여 각종 건축자재의 한면 또는 양면에 도포하여 형성된 불연성 도막이 연소되는 경우에 팽창흑연이 비산하지 않고 팽창되어 고착된 발포흑연층을 형성할 수 있는 새로운 불연성 코팅 조성물을 제공하기 위한 것이다. An object of the present invention is a new non-flammable coating capable of forming a fixed expanded graphite layer without scattering expanded graphite when a non-flammable coating film formed by applying to one or both sides of various building materials, including the outer or inner wall of a building, is burned. to provide a composition.

본 발명의 다른 목적은 불연성 도막이 연소되는 경우에 1,000℃ 이상의 고온에서 최소 2시간 연소 후에도 팽창흑연이 비산하지 않고 팽창되어 고착된 발포흑연층을 형성함으로써 방염, 차열, 단열 효과를 극대화할 수 있는 팽창흑연을 함유한 불연성 코팅 조성물을 제공하기 위한 것이다. Another object of the present invention is to maximize the flame retardant, heat shield, and insulation effects by expanding and expanding the expanded graphite layer without scattering even after burning for at least 2 hours at a high temperature of 1,000 ° C. or higher when the incombustible coating film burns. It is to provide an incombustible coating composition containing graphite.

본 발명의 또다른 목적은 도막이 얇게 형성되더라도 불연성이 우수한 팽창흑연을 함유한 불연성 코팅 조성물을 제공하기 위한 것이다. Another object of the present invention is to provide an incombustible coating composition containing expanded graphite having excellent incombustibility even when a thin coating film is formed.

본 발명의 또다른 목적은 용매로서 수지 수용액을 사용하는 대신에 물을 사용함으로써 화재시 시안화수소, 다이옥신, 비스페놀A, 불화수소 등과 같은 유해가스 배출을 줄일 수 있는 불연성 코팅 조성물을 제공하기 위한 것이다.Another object of the present invention is to provide a nonflammable coating composition capable of reducing the emission of harmful gases such as hydrogen cyanide, dioxin, bisphenol A, hydrogen fluoride, etc. in the event of a fire by using water instead of using an aqueous resin solution as a solvent.

본 발명의 또다른 목적은 불연성 도막이 연소되는 경우에 화재시 팽창흑연이 비산하지 않고 팽창되어 고착된 발포흑연층을 형성하고 유해가스 배출을 적게 하고, 도막이 얇게 형성되더라도 불연성이 우수한 팽창흑연을 함유한 불연성 코팅 조성물을 제조하기 위한 조성물 키트(kit)를 제공하기 위한 것이다. Another object of the present invention is to form an expanded graphite layer that is expanded without scattering in case of fire when the non-combustible coating film is burned, and to form a fixed expanded graphite layer, to reduce the emission of harmful gases, and to contain expanded graphite with excellent non-combustibility even when the coating film is formed thin. It is to provide a composition kit for preparing an incombustible coating composition.

본 발명의 상기 및 기타의 목적들은 하기 상세히 설명되는 본 발명에 의하여 모두 달성될 수 있다.The above and other objects of the present invention can all be achieved by the present invention described in detail below.

본 발명에 따른 불연성 내화 도료 조성물은 용매 역할을 하는 물, 실란 화합물, 팽창흑연, 무기질 울(inorganic wool), 및 설탕을 포함하는 것을 특징으로 한다.The nonflammable fireproof coating composition according to the present invention is characterized in that it includes water serving as a solvent, a silane compound, expanded graphite, inorganic wool, and sugar.

실란 화합물은 미량의 산이 첨가된 실란 화합물로서, 100중량부의 실란 화합물에 0.1∼2.0중량부의 산이 첨가된다.The silane compound is a silane compound to which a small amount of acid is added, and 0.1 to 2.0 parts by weight of acid is added to 100 parts by weight of the silane compound.

팽창흑연은 150℃ 이상으로 가열하였을 때 100∼300배로 팽창하고 60∼300메쉬의 입도를 갖는 것으로 탄소성분이 95중량% 이상인 것이 바람직하게 사용된다.Expanded graphite expands 100 to 300 times when heated to 150° C. or higher, has a particle size of 60 to 300 mesh, and preferably has a carbon component of 95% by weight or more.

무기질 울은 글라스 울, 미네랄 울, 또는 세라믹 울이고, 0.1∼5.0mm의 섬유장(纖維長)을 갖는 것이 바람직하게 사용될 수 있다.The inorganic wool is glass wool, mineral wool, or ceramic wool, and one having a fiber length of 0.1 to 5.0 mm may be preferably used.

설탕 대신에 액상 과당을 사용할 수 있다. 대표적인 액상 과당으로는 고과당 옥수수 시럽(HFCS: High Fructose Corn Syrup)이 있으며, 이는 한 예로 설탕 76중량%와 물 24중량%로 이루어진다. You can use liquid fructose instead of sugar. A representative liquid fructose is high fructose corn syrup (HFCS), which consists of 76% by weight sugar and 24% by weight water.

본 발명의 불연성 내화 도료 조성물은 물 100중량부 당, 실란 화합물 150~400중량부, 팽창흑연 30∼250중량부, 글라스 울 1∼100중량부, 및 설탕 100~400중량부를 포함한다. 상기 조성물은 페이스트(paste) 상태로서 브러쉬 또는 롤러를 사용하여 도포할 수 있다. The nonflammable fireproof paint composition of the present invention includes 150 to 400 parts by weight of a silane compound, 30 to 250 parts by weight of expanded graphite, 1 to 100 parts by weight of glass wool, and 100 to 400 parts by weight of sugar per 100 parts by weight of water. The composition may be applied using a brush or roller in a paste state.

본 발명의 내화 도료 조성물은 수 시간 내에 겔(gel)화되기 때문에 조성물 자체로 유통할 수 없다. 따라서, 본 발명의 도료 조성물을 조제하기 위해서는 조성물 키트(kit)로 제공되어야 한다. 본 발명의 코팅 조성물을 제조하기 위한 조성물 키트는 물에 설탕과 팽창흑연이 혼합된 혼합물(I), 및 미량의 산이 첨가된 실란 화합물과 무기질 울이 혼합된 혼합물(II)로 구성된다.Since the fire resistant coating composition of the present invention gels within several hours, it cannot be distributed as a composition itself. Therefore, in order to prepare the paint composition of the present invention, it should be provided as a composition kit. The composition kit for preparing the coating composition of the present invention is composed of a mixture (I) in which sugar and expanded graphite are mixed in water, and a mixture (II) in which a small amount of acid is added and a silane compound and inorganic wool are mixed.

상기 혼합물(I)은 물 100중량부에 설탕 100∼400중량부 및 팽창흑연 30∼250중량부가 혼합된 혼합물이다. 상기 혼합물(II)은 산 0.1∼2.0중량부가 혼합된 실란 화합물 100중량부에 무기질 울 1∼100중량부가 혼합된 혼합물이다.The mixture (I) is a mixture of 100 to 400 parts by weight of sugar and 30 to 250 parts by weight of expanded graphite in 100 parts by weight of water. The mixture (II) is a mixture in which 1 to 100 parts by weight of inorganic wool is mixed with 100 parts by weight of a silane compound mixed with 0.1 to 2.0 parts by weight of an acid.

본 발명의 내화 도료 조성물은 상기 혼합물(I)과 혼합물(II)을 혼합하여 제조한다. 혼합된 도료 조성물은 물 100중량부 기준으로, 실란 화합물이 150∼400중량부, 팽창흑연이 30∼250중량부, 무기질 울 1∼100중량부, 및 설탕이 100∼400중량부를 포함하도록 혼합물(I)과 혼합물(II)을 혼합한다. 상기 혼합물(I)과 혼합물(II)은 30분∼1시간 동안 교반하여 본 발명의 내화 도료 조성물을 제조한다. The fire resistant coating composition of the present invention is prepared by mixing the above mixture (I) and mixture (II). The mixed paint composition is a mixture containing 150 to 400 parts by weight of a silane compound, 30 to 250 parts by weight of expanded graphite, 1 to 100 parts by weight of inorganic wool, and 100 to 400 parts by weight of sugar based on 100 parts by weight of water ( Mix I) and mixture (II). The mixture (I) and the mixture (II) are stirred for 30 minutes to 1 hour to prepare the fire resistant coating composition of the present invention.

이하 본 발명의 구체적인 내용을 하기에 상세히 설명한다.Hereinafter, the specific content of the present invention will be described in detail below.

본 발명은 건축물의 외벽 또는 내벽을 비롯하여 각종 건축자재에 형성된 불연성 도막이 연소되는 경우에 1,000℃ 이상의 고온에서 최소 2시간 연소 후에도 발포된 팽창흑연 발포층이 비산하지 않는 발포흑연층을 형성함으로써 방염, 차열, 단열 효과를 극대화할 수 있고, 도막이 얇게 형성되더라도 불연성이 우수한 팽창흑연을 함유한 불연성 코팅 조성물, 및 그 코팅 조성물을 조제하기 위한 조성물 키트(kit)를 제공하는 발명의 효과를 갖는다. 본 발명은 용매로서 물을 사용하기 때문에 화재시 시안화수소, 다이옥신, 비스페놀A, 불화수소 등과 같은 유독가스가 거의 발생하지 않으며, 유기물이 없어 고온에서 발포 후 단열 효과가 장시간 유지되고, 1,000~2,000℃의 고온에서 탈리 또는 비산이 거의 일어나지 않는다. The present invention is flame retardant and heat shielding by forming a foamed graphite layer in which the foamed expanded graphite foam layer does not scatter even after burning at a high temperature of 1,000 ° C. or more for at least 2 hours when an incombustible coating film formed on various building materials, including the outer or inner wall of a building, is burned. , It has the effect of the present invention to provide a non-flammable coating composition containing expanded graphite capable of maximizing the thermal insulation effect and having excellent non-flammability even when the coating film is formed thin, and a composition kit for preparing the coating composition. Since the present invention uses water as a solvent, toxic gases such as hydrogen cyanide, dioxin, bisphenol A, hydrogen fluoride, etc. are hardly generated in case of fire, and the insulation effect is maintained for a long time after foaming at high temperature due to the absence of organic substances, and it is 1,000 ~ 2,000 ℃ At a high temperature of , desorption or scattering hardly occurs.

본 발명은 철재, 목재, 합판, 종이, 알미늄 시트, 직물 시트, 부직포 시트, 스티로폼, 우레탄폼, PE 발포폼, 세라믹 울 판재, 미네랄 울 판재, 글라스 울 판재 등과 같은 각종 건축자재의 한면 또는 양면에 도포하거나 건축물의 내벽 또는 외벽(이하, 본 명세서에서는 기재(基材:substrate)라 한다)에 도포하여 불연성 또는 난연성을 부여하기 위한 내화 도료 조성물에 관한 것이다.The present invention is applied to one side or both sides of various building materials such as steel, wood, plywood, paper, aluminum sheet, fabric sheet, non-woven fabric sheet, Styrofoam, urethane foam, PE foam, ceramic wool board, mineral wool board, glass wool board, etc. It relates to a fire-resistant coating composition for imparting incombustibility or flame retardancy by coating or coating on an inner or outer wall of a building (hereinafter, referred to as a substrate in this specification).

본 발명에 따른 불연성 내화 도료 조성물은 물, 실란 화합물, 팽창흑연, 무기질 울, 및 설탕을 포함하는 것을 그 특징으로 한다.The nonflammable fireproof coating composition according to the present invention is characterized in that it includes water, a silane compound, expanded graphite, inorganic wool, and sugar.

실란 화합물은 미량의 산이 첨가된 실란 화합물로서, 100중량부의 실란 화합물에 0.1∼2.0중량부의 산이 첨가된다. 산은 초산, 염산 또는 황산이 바람직하다. 미량의 산이 첨가된 실란 화합물은 1년 이상 경과 후에도 변하거나 겔(gel)화가 일어나지 않기 때문에 저장안정성이 좋다. 실란 화합물은 도포된 불연성 도막에서 겔화제와 접착제 역할을 하는 것으로, 1,000℃ 이상의 고열에서도 발포된 팽창흑연과 결합하여 팽창흑연이 비산되지 않고 기재에 고착된 흑연층을 형성한다. The silane compound is a silane compound to which a small amount of acid is added, and 0.1 to 2.0 parts by weight of acid is added to 100 parts by weight of the silane compound. The acid is preferably acetic acid, hydrochloric acid or sulfuric acid. The silane compound to which a small amount of acid is added has good storage stability because it does not change or gel even after one year or more. The silane compound serves as a gelling agent and an adhesive in the applied incombustible coating film, and forms a graphite layer adhered to the substrate without the expanded graphite being scattered by combining with the expanded graphite even at a high temperature of 1,000 ° C or higher.

실란 화합물은 메틸트리메톡시실란(CH3-Si-(OCH3)3), 테트라에톡시실란(Si-(OC2H5)4), 글리시독시프로필트리메톡시실란(CH2(O)CHCH2OC3H6-Si-(OCH3)3), 메타크릴옥시프로필트리메톡시실란(H2C=CH(CH3)C(O)OC3H6-Si-(OCH3)3), 및 비닐트리메톡시실란(H2C=CH-Si-(OCH3)3)으로 이루어진 군으로부터 선택된다. 메틸트리메톡시실란(MTMS)이 바람직하게 사용될 수 있다. MTMS는 다우 코닝사의 XIAMETER(등록상표) OFS-6070 실란으로 시판되고 있다.Silane compounds include methyltrimethoxysilane (CH 3 -Si-(OCH 3 ) 3 ), tetraethoxysilane (Si-(OC 2 H 5 ) 4 ), glycidoxypropyltrimethoxysilane (CH 2 (O )CHCH 2 OC 3 H 6 -Si-(OCH 3 ) 3 ), methacryloxypropyltrimethoxysilane (H 2 C=CH(CH 3 )C(O)OC 3 H 6 -Si-(OCH 3 ) 3 ), and vinyltrimethoxysilane (H 2 C=CH-Si-(OCH 3 ) 3 ). Methyltrimethoxysilane (MTMS) may be preferably used. MTMS is commercially available as XIAMETER® OFS-6070 silane from Dow Corning.

팽창흑연은 150℃ 이상으로 가열하였을 때 100∼300배로 팽창하고 60∼300메쉬의 입도를 갖는 것으로 탄소성분이 95중량% 이상인 것이 바람직하게 사용된다. 팽창흑연은 화재시 팽창되어 비산되지 않고 기재에 고착된 발포흑연층을 형성한다. 팽창흑연은 2,000℃ 이상의 온도에서도 연소되지 않기 때문에 단열 및 방열 효과가 탁월하다. 시판되는 제품을 구매하여 이용할 수 있다.Expanded graphite expands 100 to 300 times when heated to 150° C. or higher, has a particle size of 60 to 300 mesh, and preferably has a carbon component of 95% by weight or more. Expanded graphite expands during a fire to form an expanded graphite layer adhered to the substrate without scattering. Expanded graphite is excellent in insulation and heat dissipation because it does not burn even at a temperature of 2,000 ° C or higher. Commercially available products can be purchased and used.

무기질 울은 글라스 울, 미네랄 울, 또는 세라믹 울이고, 0.1∼5.0mm의 섬유장(纖維長)을 갖는 무기질 화이버(fiber)가 바람직하게 사용될 수 있다. 본 발명에서 사용되는 무기질 울은 시판되는 글라스 울, 미네랄 울, 또는 세라믹 울 시이트(sheet)를 적절한 크기로 절단한 후 분쇄기나 믹서기를 이용하여 화이버의 섬유장이 0.1∼5.0mm가 되도록 분쇄한 것이 바람직하다. 0.1∼5.0mm의 섬유장을 갖는 무기질 화이버가 점도 조절 기능을 하고, 발포흑연과 결합하여 장시간 연소 후에도 발포흑연이 비산되지 않는 효과를 가져온다.The inorganic wool is glass wool, mineral wool, or ceramic wool, and inorganic fibers having a fiber length of 0.1 to 5.0 mm may be preferably used. The inorganic wool used in the present invention is preferably a commercially available glass wool, mineral wool, or ceramic wool sheet cut into an appropriate size and then pulverized using a grinder or mixer so that the fiber length is 0.1 to 5.0 mm. do. Inorganic fibers with a fiber length of 0.1 to 5.0 mm function to control the viscosity, and when combined with the expanded graphite, the expanded graphite does not scatter even after burning for a long time.

설탕은 물에 용해되고 물에 용해된 설탕은 도포된 불연성 도막에서 실란 화합물과 팽창흑연 입자를 결합시키는 결합제, 및 도료 조성물을 기재에 접착시키는 접착제로서의 역할을 한다. 설탕 대신에 액상 과당을 사용할 수 있다. 대표적인 액상 과당으로는 고과당 옥수수 시럽(HFCS: High Fructose Corn Syrup)이 있으며, 이는 한 예로 설탕 76중량%와 물 24중량%로 이루어진다.Sugar dissolves in water, and the sugar dissolved in water serves as a binder for binding the silane compound and expanded graphite particles in the applied incombustible coating film, and as an adhesive for bonding the coating composition to the substrate. You can use liquid fructose instead of sugar. A representative liquid fructose is high fructose corn syrup (HFCS), which consists of 76% by weight sugar and 24% by weight water.

본 발명의 내화 도료 조성물은 물 100중량부 당 설탕 100∼400중량부를 포함한다. 설탕은 실란 화합물과 함께 팽창흑연을 견고하게 결합하여 900℃ 이상의 화재에서도 팽창흑연이 발포되어 비산되지 않고 기재에 고착된 흑연층을 형성한다. 본 발명에서는 바인더 수지를 사용하지 않더라도 설탕이 실란 화합물과 함께 팽창흑연을 견고하게 결합하여 화재시에 팽창흑연이 발포되어 비산되지 않고 기재에 고착된 흑연층을 형성하는 것으로 나타났다. 팽창흑연은 2,000℃ 이상의 온도에서도 연소되지 않기 때문에 단열 및 방열 효과가 탁월하다.The fire resistant coating composition of the present invention contains 100 to 400 parts by weight of sugar per 100 parts by weight of water. The sugar firmly binds the expanded graphite together with the silane compound to form a graphite layer adhered to the substrate without foaming and scattering the expanded graphite even in a fire of 900 ° C or higher. In the present invention, even if a binder resin is not used, it has been shown that sugar firmly binds expanded graphite together with a silane compound to form a graphite layer adhered to a substrate without foaming and scattering in the event of a fire. Expanded graphite is excellent in insulation and heat dissipation because it does not burn even at a temperature of 2,000 ° C or higher.

본 발명의 불연성 내화 도료 조성물은 물 100중량부 당, 실란 화합물 150∼400중량부, 팽창흑연 30∼250중량부, 무기질 울 1∼100중량부, 및 설탕 100∼400중량부를 포함한다. 상기 조성물은 페이스트(paste) 상태로서 브러쉬 또는 롤러를 사용하여 도포할 수 있다. 실란 화합물에 물을 혼합하면 수 시간 내에 겔화되기 때문에, 실란 화합물에 물을 혼합하는 공정은 작업 현장에서 진행되어야 한다. The incombustible fireproof coating composition of the present invention contains 150 to 400 parts by weight of a silane compound, 30 to 250 parts by weight of expanded graphite, 1 to 100 parts by weight of inorganic wool, and 100 to 400 parts by weight of sugar per 100 parts by weight of water. The composition may be applied using a brush or roller in a paste state. Since gelation occurs within several hours when water is mixed with the silane compound, the process of mixing the silane compound with water must be performed at the work site.

물, 실란 조성물, 팽창흑연, 무기질 울, 및 설탕을 포함하는 본 발명의 불연성 내화 도료 조성물은 실란 화합물과 물과의 반응으로 인하여 수 시간 내에, 빠르게는 1∼2시간 내에 겔(gel)화 된다. 상기 도료 조성물에서 실란 화합물이 겔화제로서의 역할을 하기 때문이다. 따라서, 겔화되기 전에 도포작업을 해야 한다.The nonflammable fireproof coating composition of the present invention, which includes water, a silane composition, expanded graphite, inorganic wool, and sugar, gels within several hours, as quickly as 1 to 2 hours, due to the reaction between the silane compound and water. . This is because the silane compound serves as a gelling agent in the coating composition. Therefore, application work must be done before gelation.

본 발명의 내화 도료 조성물은 수 시간 내에 겔화되기 때문에 조성물 자체로 유통할 수 없다. 따라서, 본 발명의 도료 조성물을 조제하기 위해서는 조성물 키트(kit)로 제공되어야 한다. 본 발명의 코팅 조성물을 제조하기 위한 조성물 키트는 물에 설탕과 팽창흑연이 혼합된 혼합물(I), 및 미량의 산이 첨가된 실란 화합물과 무기질 울이 혼합된 혼합물(II)로 구성된다. 팽창흑연과 무기질 울은 용해되지 않고 혼합된 상태로 존재하기 때문에, 무기질 울이 혼합물(I)에 혼합되고, 팽창흑연이 혼합물(II)에 혼합될 수 있다. 또한, 팽창흑연과 무기질 울이 함께 혼합물(I)에 혼합되거나, 혼합물(II)에 함께 혼합될 수도 있다. Since the fireproof coating composition of the present invention gels within several hours, it cannot be distributed as a composition itself. Therefore, in order to prepare the paint composition of the present invention, it should be provided as a composition kit. The composition kit for preparing the coating composition of the present invention is composed of a mixture (I) in which sugar and expanded graphite are mixed in water, and a mixture (II) in which a small amount of acid is added and a silane compound and inorganic wool are mixed. Since the expanded graphite and inorganic wool exist in a mixed state without being dissolved, the inorganic wool may be mixed into the mixture (I) and the expanded graphite may be mixed into the mixture (II). In addition, expanded graphite and inorganic wool may be mixed together in mixture (I) or mixed together in mixture (II).

상기 혼합물(I)은 물 100중량부에 설탕 100∼400중량부 및 팽창흑연 30∼250중량부가 혼합된 혼합물이다. 상기 혼합물(II)은 산 0.1∼2.0중량부가 혼합된 실란 화합물 100중량부에 무기질 울 1∼100중량부가 혼합된 혼합물이다.The mixture (I) is a mixture of 100 to 400 parts by weight of sugar and 30 to 250 parts by weight of expanded graphite in 100 parts by weight of water. The mixture (II) is a mixture in which 1 to 100 parts by weight of inorganic wool is mixed with 100 parts by weight of a silane compound mixed with 0.1 to 2.0 parts by weight of an acid.

본 발명의 내화 도료 조성물은 상기 혼합물(I)과 혼합물(II)을 혼합하여 제조한다. 혼합된 도료 조성물은 물 100중량부 기준으로, 실란 화합물이 150∼400중량부, 팽창흑연이 30∼250중량부, 무기질 울이 1∼100중량부, 및 설탕이 100∼400중량부를 포함하도록 혼합물(I)과 혼합물(II)을 혼합한다. 상기 혼합물(I)과 혼합물(II)은 30분∼1시간 동안 교반하여 본 발명의 내화 도료 조성물을 제조한다.The fire resistant coating composition of the present invention is prepared by mixing the above mixture (I) and mixture (II). The mixed coating composition includes 150 to 400 parts by weight of silane compound, 30 to 250 parts by weight of expanded graphite, 1 to 100 parts by weight of inorganic wool, and 100 to 400 parts by weight of sugar, based on 100 parts by weight of water. Mix (I) and mixture (II). The mixture (I) and the mixture (II) are stirred for 30 minutes to 1 hour to prepare the fire resistant coating composition of the present invention.

본 발명의 내화 도료 조성물에는 일반 도료 조성물(페인트)에 첨가되는 분산제, 레벨링제(leveling agent) 등이 첨가될 수 있다. 분산제는 조성물 내의 각 성분들의 분산을 좋게 하는 촉매 역할을 하고, 레벨링제는 도포 후의 표면을 평활하게 하여 매끄러운 표면을 나타내준다. 이들 첨가제는 물 100중량부 기준으로, 1∼20중량부로 첨가될 수 있다. 분산제는 상기 혼합물(I)에 첨가하고, 레벨링제는 상기 혼합물(II)에 첨가하는 것이 바람직하다. A dispersant, a leveling agent, and the like added to general paint compositions (paint) may be added to the fireproof paint composition of the present invention. The dispersant serves as a catalyst to improve the dispersion of each component in the composition, and the leveling agent shows a smooth surface by smoothing the surface after application. These additives may be added in an amount of 1 to 20 parts by weight based on 100 parts by weight of water. Preferably, a dispersing agent is added to the above mixture (I) and a leveling agent is added to the above mixture (II).

실란 화합물은 수용액 내에서 물에 의해 가수분해되고, 설탕은 물에 용해되고, 팽창흑연 입자와 글라스 울은 수용액 내에서 균질하게 분산된다. 물, 실란 화합물, 설탕, 무기질 울, 및 팽창흑연은 견고하게 결합된 도막을 형성하여 화재시에 흑연이 비산되는 것을 방지한다. Silane compounds are hydrolyzed by water in aqueous solution, sugar is dissolved in water, and expanded graphite particles and glass wool are homogeneously dispersed in aqueous solution. Water, silane compound, sugar, inorganic wool, and expanded graphite form a firmly bonded coating film to prevent scattering of graphite in case of fire.

본 발명의 내화 도료 조성물은 단열재를 비롯한 각종 건축자재 또는 건축물의 내외 벽면에 1∼3회 도포하여 0.1∼2.0mm 두께의 도막을 형성한다. 도막이 형성되는 기재로서 철재, 목재, 합판, 종이, 알미늄 시트(알미늄 호일), 직물 시트, 부직포 시트, 스티로폼, 우레탄폼, PE 발포폼, 세라믹 울 판재, 미네랄 울 판재, 글라스 울 판재 등과 같은 각종 건축자재가 적용될 수 있다. 건축물의 내벽 또는 외벽에 도포하여 불연성 또는 난연성을 부여하는 도막을 형성할 수도 있다. 도막에 함유된 팽창흑연은 물, 실란 화합물, 무기질 울, 및 설탕과의 화학 결합에 의하여 연소 중에 또는 연소 후에도 비산되지 않고 기재에 고착된 흑연층을 형성하여 방염, 차열, 단열 효과를 극대화할 수 있다. The fireproof coating composition of the present invention is applied 1 to 3 times to various building materials including heat insulating materials or to the inner and outer walls of buildings to form a coating film having a thickness of 0.1 to 2.0 mm. As a substrate on which a coating film is formed, various constructions such as steel, wood, plywood, paper, aluminum sheet (aluminum foil), fabric sheet, non-woven fabric sheet, styrofoam, urethane foam, PE foam, ceramic wool board, mineral wool board, glass wool board, etc. materials may be applied. It may be applied to the inner or outer walls of a building to form a coating film imparting incombustibility or flame retardancy. Expanded graphite contained in the coating film is not scattered during or after combustion by chemical bonding with water, silane compound, inorganic wool, and sugar, and forms a graphite layer that is adhered to the substrate to maximize flame retardant, heat shield, and insulation effects. have.

기재에 1∼3회 도포하여 0.1∼2.0mm 두께의 도막을 형성하기 때문에, 도막의 자체 하중에 의한 탈리 현상을 방지할 수 있고, 도막이 얇게 형성되더라도 불연성이 우수한 불연성 코팅 조성물을 제공한다.Since a coating film having a thickness of 0.1 to 2.0 mm is formed by applying 1 to 3 times to a substrate, it is possible to prevent detachment of the coating film due to its own load, and a non-flammable coating composition having excellent incombustibility even when the coating film is formed thinly is provided.

본 발명은 하기 실시예에 의해 보다 구체화될 것이며, 하시 실시예는 본 발명의 예시 목적으로 제시될 뿐, 본 발명의 보호범위를 한정하거나 제한하는 것은 아니다. The present invention will be further specified by the following examples, which are presented for illustrative purposes only, and do not limit or limit the scope of protection of the present invention.

실시예 1-4 및 비교실시예 1-2: 내화 도료 조성물의 조성 및 시험 결과Example 1-4 and Comparative Example 1-2: Composition and Test Results of Fireproof Paint Compositions

표 1에 나타난 조성에 따라 실시예 1-4 및 비교실시예 1-2의 내화 도료 조성물을 제조하였다. 용매로 물을 사용하였다. 팽창흑연으로는 150℃ 이상으로 가열하였을 때 약 200배로 팽창하는 80메쉬의 입도를 갖는 탄소성분이 95중량% 이상인 것을 사용하였다. 실란 화합물로는 다우 코닝사의 XIAMETER(등록상표) OFS-6070 실란인 메틸트리메톡시실란(CH3-Si-(OCH3)3)을 사용하였다. 실란 화합물에는 1.0중량부의 초산이 첨가되었다. 무기질 울은 글라스 울 시이트(sheet)를 적절한 크기로 절단한 후 분쇄기에서 분쇄하여 섬유장이 5.0mm 이내인 글라스 울을 사용하였다. 분산제로 폴리아크릴산나트륨을 사용하였고, 레벨링제로 폴리옥시에틸렌 옥틸 페닐 에테르를 사용하였다. Fireproof paint compositions of Examples 1-4 and Comparative Example 1-2 were prepared according to the compositions shown in Table 1. Water was used as a solvent. As the expanded graphite, a carbon component having a particle size of 80 mesh that expands about 200 times when heated to 150 ° C. or higher was used at 95% by weight or more. As the silane compound, Dow Corning's XIAMETER (registered trademark) OFS-6070 silane, methyltrimethoxysilane (CH 3 -Si-(OCH 3 ) 3 ) was used. 1.0 part by weight of acetic acid was added to the silane compound. As the inorganic wool, glass wool having a fiber length of 5.0 mm or less was used by cutting a glass wool sheet into an appropriate size and then pulverizing it in a grinder. Sodium polyacrylate was used as a dispersing agent, and polyoxyethylene octyl phenyl ether was used as a leveling agent.

Figure pat00001
Figure pat00001

연소시험:Combustion test:

실시예 1-4 및 비교실시예 1-2에서 제조된 도료 조성물을 기재에 2회씩 도포하여 표 1의 두께를 갖는 불연성 도막을 형성하였다. 기재는 2mm 두께의 철판을 사용하였다. 도막을 향하여 1,000∼1,100℃의 토오치(torch)로 2시간 연소시켰다. 유기물인 수지 성분을 사용하지 않았기 때문에 유해가스는 거의 배출되지 않았다. 시험결과를 표 1에 나타내었다.The coating composition prepared in Example 1-4 and Comparative Example 1-2 was applied to the substrate twice to form an incombustible coating film having a thickness shown in Table 1. An iron plate with a thickness of 2 mm was used as the substrate. The coating film was burned for 2 hours with a torch at 1,000 to 1,100°C. Since organic resin components were not used, almost no harmful gas was emitted. The test results are shown in Table 1.

도막 두께: 실시예 1-4 및 비교예 1-2에서 제조된 코팅 조성물을 기재에 2회씩 도포하여 형성된 도막의 두께를 측정하여 표 1에 나타내었다. 2회씩 도포하여 1.5mm 이하의 비교적 얇은 두께의 도막이 형성되었다.Coating film thickness: The thickness of the coating film formed by applying the coating composition prepared in Examples 1-4 and Comparative Example 1-2 twice to a substrate was measured and shown in Table 1. By applying twice, a relatively thin coating film of 1.5 mm or less was formed.

발포흑연층 두께: 연소시간의 경과에 따라 발포흑연층의 두께를 측정하였다. 연소 10분 후, 30분 후, 1시간 후, 및 2시간 후의 두께를 측정하였다. 실시예 1-4에서는 연소 2시간 후에 발포흑연층의 두께가 소폭 감소하였을 뿐 큰 변화가 없었다. 이는 1,000℃ 이상의 고온에서 2시간 이상 연소하더라도 발포층이 탈리되지 않고 비산도 아주 소량 일어남을 의미한다. 비교실시예 1-2에서는 비산이 비교적 많이 일어나서 발포층 두께가 얇아지고, 1시간 연소 후에는 탈리되었다. 실시예 1-4에서 보는 바와 같이, 본 발명의 내화 조성물은 1,000℃ 이상의 고온에서 2시간 이상 연소하더라도 기재에 대한 고착성이 좋기 때문에 발포층이 탈리되지 않고, 발포흑연의 결합력이 크기 때문에 비산도 거의 일어나지 않는 것을 보여준다.Foamed graphite layer thickness: The thickness of the expanded graphite layer was measured according to the lapse of burning time. The thickness was measured after 10 minutes, 30 minutes, 1 hour, and 2 hours after burning. In Examples 1-4, there was no significant change except for a slight decrease in the thickness of the expanded graphite layer after 2 hours of burning. This means that the foam layer is not detached and a very small amount of scattering occurs even if it is burned for more than 2 hours at a high temperature of 1,000 ° C or higher. In Comparative Example 1-2, scattering occurred relatively much, the thickness of the foam layer was thin, and after burning for 1 hour, it was desorbed. As shown in Examples 1-4, the refractory composition of the present invention has good adhesion to the substrate even when burned at a high temperature of 1,000 ° C. or more for 2 hours or more, so that the foam layer does not detach, and since the bonding force of the expanded graphite is high, there is almost no scattering. show what doesn't happen

2시간 연소 후 이면(裏面) 온도: 실시예 1-4 및 비교예 1-2에서 형성된 도막에 1,000∼1,100℃의 토오치로 2시간 가열 후에 기재의 이면(裏面) 온도를 측정하였다. 실시예 1-4에서는 가열면 온도가 1,000∼1,100℃인데 반하여, 이면 온도는 450∼525℃를 유지하였다. 비교예 1-2는 가열면 온도보다 약간 낮은 850∼870℃를 유지하여 차열 및 방열 효과가 거의 없음을 알 수 있다. Backside temperature after burning for 2 hours: The backside temperature of the substrate was measured after heating the coating films formed in Example 1-4 and Comparative Example 1-2 with a torch at 1,000 to 1,100 ° C. for 2 hours. In Example 1-4, the heating surface temperature was 1,000 to 1,100 ° C, whereas the rear surface temperature was maintained at 450 to 525 ° C. It can be seen that Comparative Example 1-2 maintains 850 to 870 ° C., which is slightly lower than the heating surface temperature, so that there is almost no heat shielding and heat dissipation effect.

본 발명의 단순한 변형 내지 변경은 이 분야의 통상의 지식을 가진 자에 의하여 용이하게 실시될 수 있으며, 이러한 변형이나 변경은 모두 본 발명의 영역에 포함되는 것으로 볼 수 있다.Simple modifications or changes of the present invention can be easily performed by those skilled in the art, and all such modifications or changes can be considered to be included in the scope of the present invention.

Claims (8)

용매로서 물, 실란 조성물, 팽창흑연, 무기질 울, 및 설탕을 포함하는 것을 특징으로 하는 불연성 내화 도료 조성물.
An incombustible fireproof coating composition comprising water, a silane composition, expanded graphite, inorganic wool, and sugar as a solvent.
 제1항에 있어서, 상기 물 100중량부 당, 실란 화합물은 150~400중량부, 팽창흑연은 30∼250중량부, 무기질 울은 1∼100중량부, 및 설탕은 100~400중량부로 포함되는 것을 특징으로 하는 불연성 내화 도료 조성물.
The method of claim 1, wherein the silane compound is 150 to 400 parts by weight, the expanded graphite is 30 to 250 parts by weight, the inorganic wool is 1 to 100 parts by weight, and the sugar is included in 100 to 400 parts by weight per 100 parts by weight of the water. A nonflammable fireproof coating composition, characterized in that.
 제2항에 있어서, 상기 실란 화합물은 100중량부의 실란 화합물에 0.1∼2.0중량부의 초산, 염산 또는 황산이 첨가된 것을 특징으로 하는 불연성 내화 도료 조성물.
The nonflammable fireproof coating composition according to claim 2, wherein the silane compound is obtained by adding 0.1 to 2.0 parts by weight of acetic acid, hydrochloric acid or sulfuric acid to 100 parts by weight of the silane compound.
 제3항에 있어서, 상기 실란 화합물은 메틸트리메톡시실란(CH3-Si-(OCH3)3), 테트라에톡시실란(Si-(OC2H5)4), 글리시독시프로필트리메톡시실란(CH2(O)CHCH2OC3H6-Si-(OCH3)3), 메타크릴옥시프로필트리메톡시실란(H2C=CH(CH3)C(O)OC3H6-Si-(OCH3)3), 및 비닐트리메톡시실란(H2C=CH-Si-(OCH3)3)으로 이루어진 군으로부터 선택된 하나 이상인 것을 특징으로 하는 불연성 내화 도료 조성물.
The method of claim 3, wherein the silane compound is methyltrimethoxysilane (CH 3 -Si- (OCH 3 ) 3 ), tetraethoxysilane (Si- (OC 2 H 5 ) 4 ), glycidoxypropyl trime Toxysilane (CH 2 (O)CHCH 2 OC 3 H 6 -Si-(OCH 3 ) 3 ), methacryloxypropyltrimethoxysilane (H 2 C=CH(CH 3 )C(O)OC 3 H 6 -Si-(OCH 3 ) 3 ), and vinyltrimethoxysilane (H 2 C=CH-Si-(OCH 3 ) 3 ) characterized in that at least one selected from the group consisting of a non-flammable fire-resistant coating composition.
 제4항에 있어서, 상기 팽창흑연은 150℃ 이상으로 가열하였을 때 100∼300배로 팽창하고 60∼300메쉬의 입도를 갖는 것으로 탄소성분이 95중량% 이상인 것을 특징으로 하는 불연성 내화 도료 조성물.
The nonflammable fireproof coating composition according to claim 4, wherein the expanded graphite expands 100 to 300 times when heated to 150° C. or higher, has a particle size of 60 to 300 mesh, and contains 95% by weight or more of carbon.
 제5항에 있어서, 상기 무기질 울은 글라스 울, 미네랄 울, 또는 세라믹 울이고, 0.1∼5.0mm의 섬유장(纖維長)을 갖는 것을 특징으로 하는 불연성 내화 도료 조성물.
The nonflammable fireproof coating composition according to claim 5, wherein the inorganic wool is glass wool, mineral wool, or ceramic wool, and has a fiber length of 0.1 to 5.0 mm.
 물에 설탕 및 팽창흑연이 혼합된 혼합물(I); 및
산이 부가된 실란 조성물에 무기질 울이 혼합된 혼합물(II);
로 구성되는 것을 특징으로 하는 불연성 내화 도료 조성물을 제조하기 위한 조성물 키트(kit).
A mixture (I) in which sugar and expanded graphite are mixed in water; and
A mixture (II) in which inorganic wool is mixed with an acid-added silane composition;
A composition kit for producing a non-flammable fire-resistant coating composition, characterized in that consisting of.
 제7항에 있어서, 상기 혼합물(I)은 물 100중량부에 설탕 100∼400중량부 및 팽창흑연 30∼250중량부가 혼합된 혼합물이고, 상기 혼합물(II)은 산 0.1∼2.0중량부가 첨가된 실란 화합물 100중량부에 무기질 울 1∼100중량부가 혼합된 혼합물인 것을 특징으로 하는 불연성 내화 도료 조성물을 제조하기 위한 조성물 키트(kit).The method of claim 7, wherein the mixture (I) is a mixture of 100 to 400 parts by weight of sugar and 30 to 250 parts by weight of expanded graphite in 100 parts by weight of water, and the mixture (II) is a mixture of 0.1 to 2.0 parts by weight of acid. A composition kit for preparing a nonflammable fireproof coating composition, characterized in that it is a mixture of 100 parts by weight of a silane compound and 1 to 100 parts by weight of inorganic wool.
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