KR101306632B1 - Spray-type nonflammable insulating material composition and production method and coating method thereof - Google Patents
Spray-type nonflammable insulating material composition and production method and coating method thereof Download PDFInfo
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- 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
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- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
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- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/122—Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes
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- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
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- C23C18/1283—Control of temperature, e.g. gradual temperature increase, modulation of temperature
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
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- C23C18/1291—Process of deposition of the inorganic material by heating of the substrate
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Abstract
Description
본 발명은 스프레이 방식의 불연성 단열소재 조성물과 그 제조 방법 및 코팅 방법에 관한 것이다.The present invention relates to a non-flammable insulating material composition of the spray method, a manufacturing method and a coating method thereof.
단열재란 열이 높은 곳에서 낮은 곳으로 이동하는 그 흐름을 방지하는 구조체로서, 열손실 및 열획득을 효율적으로 차단하여 에너지를 절약할 수 있게 하고, 표면 온도 강하로 인해 발생하는 표면 결로를 방지한다.Insulation is a structure that prevents the flow of heat from high to low, effectively saving heat loss and heat acquisition, saving energy, and preventing surface condensation due to surface temperature drop .
일반적으로 단열재는 공장, 아파트, 주택, 사무실, 저온창고, 콘테이너, 기타 건축물 등에 널리 사용되며, 단열재를 구성하는 성분에 따라 크게 유기계 단열재와 무기계 단열재로 나누어져 있다.Generally, insulation materials are widely used in factories, apartments, houses, offices, low temperature warehouses, containers, and other buildings, and they are largely divided into organic insulation materials and inorganic insulation materials depending on the constituents of the insulation materials.
유기계 단열재로는 스티로폼(EPS; expanded polystyrene) 계열과 폴리우레탄 폼(polyurethane form) 계열이 주종을 이루고 있고, 무기계 단열재로는 유리면(glass wool)과 암면(mineral wool), 석면, 펄라이트 등이 주종을 이루고 있다. 이외에 블록 및 보드형태의 단열재와 각종 파이프 용도에 보냉재 및 보온용으로 쓰이는 고분자로 만들어진 단열제품들도 사용되고 있다. 또한 최근에는 단열 충진재, 단열 마감재 등으로 응용되어 사용되기도 하며, 대한민국 공개특허 제10-2011-0004690호는 아크릴 에멀젼 수지, 알루미늄 실리케이트 및 첨가제를 사용한 도포형 단열 마감재 조성물을 기술하고 있다.The organic insulation is mainly composed of expanded polystyrene (EPS) and polyurethane foam (polyurethane form). Inorganic insulation includes glass wool, mineral wool, asbestos, and pearlite. It is coming true. In addition, insulation products made of polymers used for insulation and insulation for block and board-type insulation and various pipe applications are also used. In addition, recently applied to be used as a heat insulating filler, a heat insulating finish, etc., Republic of Korea Patent Publication No. 10-2011-0004690 discloses a coating type heat insulating finish composition using an acrylic emulsion resin, aluminum silicate and additives.
국내 단열재 시장에서는 유기 단열재가 71%를 차지하고 있으며, 그 중 폴리스티렌 폼(polystyrene foam)이 55%, 압축보드 6%, 폴리우레탄 폼이 29%를 차지하고 있다. 유기성 단열제품은 열전도가 낮아 단열재로써 오랫동안 범용적으로 사용되고 있다. 무기질 단열재의 경우에는 유리면과 암면, 석면, 펄라이트 등이 전체 단열재 시장의 29% 정도를 차지하고 있다.In the domestic insulation market, organic insulation accounts for 71%, of which polystyrene foam is 55%, compression board 6%, and polyurethane foam 29%. Organic thermal insulation products have been used for a long time as a heat insulating material because of low thermal conductivity. In the case of inorganic insulation, glass wool, rock wool, asbestos and pearlite account for 29% of the overall insulation market.
그러나 기존에 많이 사용되어온 유기성 단열제품은 화재 발생 시 일반 소재와는 다르게 화염확산 속도와 열 발생율이 더 높을 뿐만 아니라, 다량의 유독가스 분출이 발생하여 치명적인 인명손실 및 재산손실을 초래하는 문제점을 안고 있다.However, organic thermal insulation products, which have been widely used, have a higher flame spreading rate and higher heat generation rate than general materials in case of fire, and have a problem of causing fatal loss of lives and property loss due to large amount of toxic gas emission. have.
또한, 석면 파우더, 유리섬유 및 암연 등을 주재료로 사용하여 형성된 무기계 단열재는 불연재이고 단열성능도 우수한 편이나, 인체에 접촉, 흡입될 경우 암을 일으키는 유해물질이기 때문에 점차 그 사용이 금지되고 있는 추세이다. 또한, 발포유리를 주제로 사용하여 형성된 무기계 단열재는 단열성은 우수하나 강도가 취약하여 쉽게 깨지기 때문에 그 사용이 극히 제한적이며, 종래 무기계 단열재는 유기계 단열재에 비해 중량이 크며 제조비용이 높기 때문에 산업 분야에서 널리 이용되지 못하고 있다.In addition, inorganic insulating materials formed using asbestos powder, glass fiber and dark lead as non-flammable materials are nonflammable and have excellent thermal insulation performance, but are increasingly prohibited from use because they are harmful substances that cause cancer when they are inhaled or inhaled by the human body. to be. In addition, since the inorganic insulating material formed by using the foamed glass as a main material is excellent in the heat insulating property but weak in strength, it is very fragile and its use is very limited. Since the conventional inorganic insulating material is larger in weight than the organic insulating material and has a high manufacturing cost, It is not widely used.
또한, 현장시공에 있어서 아파트, 빌라, 연립주택이나 고층건물, 공장건물 등과 같이 일정한 규격을 갖는 건물은 재료의 규격화 및 조립가능성, 경량화, 난연성 등이 동시에 요구되므로 규격에 맞춘 단열재를 미리 준비하여 시공하여야 하는 번거로움이 있다.In addition, in the field construction, buildings with a certain standard such as apartments, villas, tenement houses, high-rise buildings, factory buildings, etc. are required to standardize and assemble materials, light weight, and flame retardant. There is a hassle to do.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출한 것으로서, 본 발명의 목적은 단열이 필요한 부위에 스프레이 방식으로 도포하여 코팅함으로써 취급과 작업이 용이하고, 사용 후에는 차열, 차염 및 내화 기능이 뛰어날 뿐만 아니라 유독가스가 전혀 발생하지 않는 친환경 초경량 불연성 단열소재 조성물을 제공하는데 있다. The present invention has been made to solve the conventional problems as described above, the object of the present invention is easy to handle and work by applying a spray coating to the area that needs to be insulated, after use, heat shield, flame retardant and fireproof function Not only is this excellent but also to provide an environment-friendly ultra-light non-combustible insulation material composition does not generate any toxic gas.
또한, 본 발명의 또 다른 목적은 상기한 불연성 단열소재 조성물을 제조하는 방법을 제공하는데 있다.In addition, another object of the present invention to provide a method for producing the non-combustible insulating material composition.
또한, 본 발명의 또 다른 목적은 상기한 불연성 단열소재 조성물을 사용한 스프레이 방식의 단열재 코팅 방법을 제공하는데 있다.In addition, another object of the present invention to provide a spray coating method of the heat insulating material using the non-combustible insulating material composition.
상기 목적을 달성하기 위한 본 발명에 따른 불연성 단열소재 조성물은 무기 바인더 50∼70 중량%, 실리카 에어로겔 5∼10 중량%, 무기 섬유 4∼7 중량%, 무기 중공체 20∼30 중량% 및 실란 화합물 1∼3 중량%를 포함한다.The non-combustible insulating material composition according to the present invention for achieving the above object is 50 to 70% by weight inorganic binder, 5 to 10% by weight silica airgel, 4 to 7% by weight inorganic fiber, 20 to 30% by weight inorganic hollow body and silane compound It contains 1-3 weight%.
또한, 상기 무기 바인더는 무기 바인더 100 중량%에 대해 액상 규산나트륨 50∼80 중량%, 염산 수용액 5∼10 중량%, 시트르산 수용액 5∼15 중량%, 인산수소알루미늄 수용액 5∼15 중량% 및 염화아연 수용액 5∼10 중량%를 포함하는 것을 특징으로 할 수 있다.In addition, the inorganic binder is 50 to 80% by weight of liquid sodium silicate, 5 to 10% by weight aqueous hydrochloric acid solution, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate and zinc chloride based on 100% by weight of the inorganic binder. It may be characterized by containing 5 to 10% by weight of the aqueous solution.
또한, 상기 무기 바인더는 상기 액상 규산나트륨, 염산 수용액, 시트르산 수용액, 인산수소알루미늄 수용액 및 염화아연 수용액을 포함하는 무기 바인더 100 중량부에 대해 3 중량부 이하의 경질 탄산칼슘 또는 무기 발수제를 추가로 포함하는 것을 특징으로 할 수 있다.In addition, the inorganic binder further includes 3 parts by weight or less of hard calcium carbonate or an inorganic water repellent based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aqueous aluminum hydrogen phosphate solution, and zinc chloride aqueous solution. It can be characterized by.
또한, 상기 무기 섬유는 실리카계 무기 섬유인 것을 특징으로 할 수 있다.In addition, the inorganic fiber may be characterized in that the silica-based inorganic fibers.
또한, 상기 무기 중공체는 질석, 규조토, 고령토, 벤토나이트, 보크사이트, 볼 클레이, 오닉셀, 애터펄자이트, 석영, 유리 버블, 코레실 및 마이크로포러스로 이루어진 군으로부터 선택된 하나 이상을 포함하는 것을 특징으로 할 수 있다. The inorganic hollow body may include one or more selected from the group consisting of vermiculite, diatomaceous earth, kaolin, bentonite, bauxite, ball clay, onicel, ettpullet, quartz, glass bubble, coresil and microporous .
또한, 상기 실란 화합물은 알콕시 실란, 아미노 실란, 에폭시 실란, 아크릴 실란, 메르캅토 실란, 불소 실란, 메타크록시 실란, 비닐 실란, 클로로 실란 및 실라잔으로 이루어진 군으로부터 선택된 하나 이상을 포함하는 것을 특징으로 할 수 있다.In addition, the silane compound is characterized in that it comprises at least one selected from the group consisting of alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane You can do
또한, 상기 불연성 단열소재 조성물은 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 추가로 포함하는 것을 특징으로 할 수 있다.In addition, the non-combustible insulating material composition further comprises at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifying agents. can do.
본 발명은 상기 불연성 단열소재 조성물을 경화하여 얻어지는 성형품을 포함한다.The present invention includes a molded article obtained by curing the non-combustible heat insulating material composition.
또한, 상기 성형품은 열전도율이 ASTM C518에 따라 측정 시 0.01∼0.04W/mK 인 것을 특징으로 할 수 있다.In addition, the molded article may have a thermal conductivity of 0.01 to 0.04 W / mK when measured according to ASTM C518.
또한, 상기 성형품은 비중이 0.1∼0.3 인 것을 포함하는 것을 특징으로 할 수 있다.In addition, the molded article may be characterized by including a specific gravity of 0.1 to 0.3.
또한, 상기 성형품은 접착강도가 0.5∼2.0N/mm2 인 것을 포함하는 것을 특징으로 할 수 있다. In addition, the molded article may be characterized in that it comprises an adhesive strength of 0.5 to 2.0 N / mm 2 .
본 발명의 불연성 단열소재 조성물 제조 방법은 (a) 무기 바인더를 제조하는 단계; (b) 상기 무기 바인더 50 내지 70 중량%에 실리카 에어로겔 5 내지 10 중량%를 혼합하는 단계; (c) 무기 섬유 4 내지 7 중량%를 혼합하는 단계; (d) 다공성 무기 중공체 20 내지 30 중량%를 혼합하는 단계; 및 (e) 실란 화합물 1 내지 3 중량%를 혼합하는 단계를 포함한다.Nonflammable insulating material composition production method of the present invention comprises the steps of (a) preparing an inorganic binder; (b) mixing 5 to 10 wt% of the silica airgel with 50 to 70 wt% of the inorganic binder; (c) mixing 4 to 7 weight percent of inorganic fibers; (d) mixing 20 to 30 wt% of the porous inorganic hollow body; And (e) mixing 1 to 3 weight percent of the silane compound.
또한, 상기 불연성 단열소재 조성물 제조 방법은 (f) 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 혼합하는 단계를 추가로 포함할 수 있다.In addition, the method for producing a non-combustible insulating material composition is (f) mixing at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, thermal stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifying agents. It may further comprise a step.
본 발명의 스프레이 방식의 단열재 코팅 방법은 단열이 필요한 피도체의 표면에 (a) 무기 바인더를 열증착 코팅하는 단계; (b) 본 발명에 따른 불연성 단열소재 조성물 제조 방법에 의해 제조된 불연성 단열소재 조성물을 스프레이 방식으로 도포하는 단계; (c) 상기 도포된 불연성 단열소재 조성물을 양생하는 단계; (d) 실란 화합물로 코팅하는 단계를 포함한다. Spray coating method of the thermal insulation material of the present invention comprises the steps of (a) thermo-deposited coating an inorganic binder on the surface of the subject to be insulated; (b) applying a non-combustible insulating material composition prepared by the method of manufacturing a non-combustible insulating material composition according to the present invention by a spray method; (c) curing the applied non-combustible heat insulating material composition; (d) coating with a silane compound.
또한, 상기 열증착 코팅은 상기 피도체의 표면온도가 80∼120℃인 것을 특징으로 할 수 있다.In addition, the thermal evaporation coating may be characterized in that the surface temperature of the subject is 80 ~ 120 ℃.
또한, 상기 스프레이 방식의 도포는 본 발명에 따른 불연성 단열소재 조성물 제조 방법에 의해 제조된 불연성 단열소재 조성물을 3∼7mm의 두께로 도포하는 것을 특징으로 할 수 있다.In addition, the spray coating may be characterized in that the non-flammable insulating material composition prepared by the method for producing a non-flammable insulating material composition according to the present invention is applied to a thickness of 3 to 7mm.
본 발명에 따른 불연성 단열소재 조성물은 우수한 차열성, 차염성 및 내화성을 나타낸다. 따라서 본 발명에 따른 불연성 단열소재 조성물은 단열재 및 내화재의 성질을 동시에 구현할 수 있다. 또한, 본 발명에 따른 불연성 단열소재 조성물은 압축 저장하여 휴대할 수 있고, 단열을 원하는 피도체에 스프레이식 뿜칠 시공으로 도포하여 간편한 코팅이 가능하므로 우수한 단열효과뿐만 아니라 시공의 편의성, 우수한 시공품질 및 경제성을 나타낸다.The non-combustible insulating material composition according to the present invention exhibits excellent heat shielding, flame retardancy and fire resistance. Therefore, the non-combustible heat insulating material composition according to the present invention can implement the properties of the heat insulating material and the refractory material at the same time. In addition, the non-combustible heat insulating material composition according to the present invention can be compressed and stored and carried, and can be easily coated by spraying the sprayed coating on the desired coating material, so that not only an excellent heat insulating effect but also convenience of construction, excellent construction quality and Economical.
이하, 본 발명에 관하여 더욱 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.
하기에서 본 발명을 설명함에 있어 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다. 그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 판례 등에 따라 달라질 수 있으며, 이에 따라 각 용어의 의미는 본 명세서 전반에 걸친 내용을 토대로 해석되어야 할 것이다.In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention of the user, the operator, or the precedent, and the meaning of each term should be interpreted based on the contents will be.
상술한 바와 같이, 본 발명에 따른 불연성 단열소재 조성물은 (A) 무기 바인더, (B) 실리카 에어로겔, (C) 무기 섬유, (D) 무기 중공체 및 (E) 실란 화합물을 포함하며, 보다 구체적으로 무기 바인더 50∼70 중량%, 실리카 에어로겔 5∼10 중량%, 무기 섬유 4∼7 중량%, 무기 중공체 20∼30 중량% 및 실란 화합물 1∼3 중량%를 포함할 수 있으며, 선택적으로 첨가제를 추가로 포함할 수 있다. As described above, the non-combustible insulating material composition according to the present invention comprises (A) an inorganic binder, (B) silica airgel, (C) inorganic fibers, (D) inorganic hollow bodies and (E) silane compounds, and more specifically 50 to 70% by weight of an inorganic binder, 5 to 10% by weight of silica airgel, 4 to 7% by weight of inorganic fibers, 20 to 30% by weight of an inorganic hollow body, and 1 to 3% by weight of a silane compound. It may further include.
본 발명에 따른 조성물은 건조 혼합물, 용액, 분산액, 현탁액, 슬러리, 페이스트, 건조되거나 경화된 생성물, 다층 복합체 등의 형태를 가질 수 있다. 또한, 본 발명에 따른 조성물을 다양한 물품이 되도록 성형하거나 다양한 물품 상에 도포하거나 다양한 물품 내로 혼입시킬 수 있다. 상기 성형품 등은 공장, 아파트, 주택, 사무실, 저온창고, 콘테이너, 기타 건축물 등의 단열재로 사용될 수 있다. 또한, 상기 성형 방법에 대해서도 당해 분야에서 통상 사용되는 방법을 사용할 수 있다.The composition according to the present invention may take the form of a dry mixture, a solution, a dispersion, a suspension, a slurry, a paste, a dried or cured product, a multi-layer composite, and the like. In addition, the composition according to the present invention can be molded into various articles, applied on various articles, or incorporated into various articles. The molded products can be used as insulation materials for factories, apartments, houses, offices, low-temperature warehouses, containers, and other buildings. The molding method may also be a method commonly used in the art.
이하, 본 발명의 불연성 단열소재 조성물을 구성하는 각 성분 별로 상세히 설명한다.Hereinafter, each component constituting the non-combustible heat insulating material composition of the present invention will be described in detail.
(A) 무기 바인더(A) The inorganic binder
본 발명의 불연성 단열소재 조성물에 포함되는 무기 바인더는 조성물의 성분들을 결합시키고 기계적 물성을 향상시키는 역할을 한다.The inorganic binder included in the non-combustible insulating material composition of the present invention serves to combine the components of the composition and improve mechanical properties.
상기 무기 바인더로는 규산나트륨, 규산칼륨과 같은 규산염 물질로 이루어진 군에서 선택되는 것을 사용할 수 있다. 또한 도포되어 건조된 규산염이 대기 중의 수분이나 물과 반응하여 다시 녹게 되는 것을 방지하기 위하여 첨가제가 포함될 수 있다. 이때 첨가제로는 황산, 염산, 인산, 아세트산 등의 산과 탄산칼슘, 질산칼슘, 염화마그네슘, 황산마그네슘, 수산화칼숨 등과 같은 알칼리 토금속이 포함될 수 있다. 또한 필요에 따라서 제올라이트, 퍼라이트, 카본 등이 포함될 수도 있다.As the inorganic binder, those selected from the group consisting of silicate materials such as sodium silicate and potassium silicate may be used. In addition, an additive may be included to prevent the applied, dried silicate from reacting with moisture or water in the air and re-melting. The additive may include an acid such as sulfuric acid, hydrochloric acid, phosphoric acid, and acetic acid, and an alkaline earth metal such as calcium carbonate, calcium nitrate, magnesium chloride, magnesium sulfate, If necessary, zeolite, perlite, carbon and the like may be included.
상기 무기 바인더는 액상 규산나트륨, 염산 수용액, 시트르산 수용액, 인산수소알루미늄 수용액 및 염화아연 수용액을 포함할 수 있으며, 바람직하게는 무기 바인더 100 중량%에 대해 액상 규산나트륨 50∼80 중량%, 염산 수용액 5∼10 중량%, 시트르산 수용액 5∼15 중량%, 인산수소알루미늄 수용액 5∼15 중량% 및 염화아연 수용액 5∼10 중량%의 범위로 구성되는 것이 좋다.The inorganic binder may include a liquid sodium silicate, an aqueous hydrochloric acid solution, an aqueous citric acid solution, an aqueous aluminum hydrogen phosphate solution, and an aqueous zinc chloride solution. Preferably, the inorganic binder is 50 to 80% by weight of liquid sodium silicate, and an aqueous solution of hydrochloric acid 5 It is good to comprise in the range of -10 weight%, 5-15 weight% of citric-acid aqueous solution, 5-15 weight% of aqueous aluminum hydrogen phosphate, and 5-10 weight% of zinc chloride aqueous solution.
또한, 상기 무기 바인더에 상기 액상 규산나트륨, 염산 수용액, 시트르산 수용액, 인산수소알루미늄 수용액 및 염화아연 수용액을 포함하는 무기 바인더 100 중량부에 대해 3 중량부 이하의 경질 탄산칼슘 및/또는 무기 발수제를 포함할 수 있다.The inorganic binder may include 3 parts by weight or less of hard calcium carbonate and / or an inorganic water repellent based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aluminum hydrogen phosphate solution and zinc chloride aqueous solution. can do.
상기 무기 바인더는 50 내지 70 중량%로 포함되는 것이 본 발명에서 요구되는 물성을 발현할 수 있어 바람직하다.The inorganic binder is preferably contained in 50 to 70% by weight can express the physical properties required in the present invention.
(B) 실리카 에어로겔(B) silica airgel
본 발명의 불연성 단열소재 조성물에 포함되는 실리카 에어로겔은 확산된 기공을 바탕으로 내화 및 단열성을 증진시키는 역할을 한다.The silica airgel contained in the nonflammable heat insulating material composition of the present invention plays a role of enhancing the fire resistance and the heat insulation based on the diffused pores.
에어로겔은 기공율이 90% 이상이고, 비표면적이 수백 내지 1500m2/g 정도인 투명한 극저밀도의 첨단소재이다. 이러한 다공성 에어로겔은 극저유전체, 촉매, 전극소재, 방음재 등의 분야에 응용이 가능하며, 특히 실리카 에어로겔은 높은 투광성과 낮은 열전도도를 특성으로 하기 때문에 투명 단열재로의 높은 잠재력을 갖고 있을 뿐만 아니라 냉장고, 자동차, 항공기 등에 사용될 수 있는 매우 효율적인 초단열체이다. 실리카 에어로겔은 습윤겔의 구조를 변형 없이 그대로 건조시켜 얻어질 수 있으며, 80∼99.87%의 기공율과 1∼50nm의 기공 크기를 갖는 비표면적이 매우 큰 물질이다. Airgel is a transparent ultra-low density material having a porosity of 90% or more and a specific surface area of several hundred to 1500m 2 / g. Such porous aerogels can be applied in the fields of ultra low dielectric, catalysts, electrode materials, soundproofing materials, and the like.Since silica aerogels have high light transmittance and low thermal conductivity, they have a high potential as a transparent insulating material as well as refrigerators, It is a very efficient super insulation that can be used in automobiles, aircraft, and the like. Silica airgel can be obtained by drying the structure of the wet gel as it is, and is a material having a large specific surface area having a porosity of 80 to 99.87% and a pore size of 1 to 50 nm.
그러나 실리카 에어로겔은 수분을 흡수하면 겔 구조 특성 및 물성이 저하되기 때문에 표면을 소수화 처리하여 영구적인 소수성을 갖는 실리카 에어로겔을 제조해야만 하는 문제점을 안고 있다. 소수성 에어로겔은 분말, 입자상 등으로 제조되며 에어로겔 자체가 소수성이 강하여 일반 접착제와는 접착이 불가능하여 공간을 형성하고 공간에 에어로겔을 충진하는 방법으로 사용되거나 분말을 함침시킨 부재로 사용될 수 있다.However, the silica airgel absorbs moisture, which deteriorates the gel structure and physical properties. Therefore, the surface of the silica aerogel is subjected to hydrophobic treatment to produce a silica aerogel having a permanent hydrophobic property. Hydrophobic airgel is made of powder, granular and the like, the aerogel itself is hydrophobic, strong adhesion is not possible with the general adhesive can be used as a method of forming a space and filling the airgel into the space or a member impregnated with powder.
본 발명에서 사용되는 실리카 에어로겔은 본 발명이 속하는 기술 분야에서 통상적으로 제조 및 사용되는 실리카 에어로겔 모두를 포함할 수 있으며, 바람직하게는 소듐 실리케이트를 포함할 수 있다. 또한, 소수성과 표면의 강도를 증진시키기 위해 실란을 추가로 포함할 수 있다.The silica aerogels used in the present invention may include all of the silica aerogels conventionally produced and used in the art to which the present invention belongs, preferably sodium silicate. In addition, silanes may be further included to enhance hydrophobicity and surface strength.
상기 실리카 에어로겔은 5 내지 10 중량%로 포함되는 것이 본 발명에서 요구되는 물성을 발현할 수 있어 바람직하다.The silica airgel is preferably contained in 5 to 10% by weight can express the physical properties required in the present invention.
(C) 무기 섬유(C) inorganic fiber
본 발명의 불연성 단열소재 조성물에 포함되는 무기 섬유는 상기 실리카 에어로겔을 안착시키는 역할을 한다.Inorganic fibers included in the non-combustible insulating material composition of the present invention serves to seat the silica airgel.
무기 섬유로는 유리섬유, 록울, 슬래그섬유, 금속섬유 등이 있으며, 보통의 유기섬유에 비하여 내열성이 커서 내열, 방열, 방음재료 등에 널리 쓰이고 있다. Inorganic fibers include glass fibers, rock wool, slag fibers, metal fibers, etc., and are widely used in heat, heat dissipation, and soundproofing materials due to their high heat resistance compared to ordinary organic fibers.
본 발명에서는 알루미나, 지르코니아, 탄화규소, 탄소 등 내열성이 뛰어난 세라믹스 섬유나 금속섬유, 탄소 섬유, 규산염 섬유(유리 섬유, 암석 섬유, 실리카 섬유, 세라믹 섬유) 및 티탄산칼륨 섬유 등 기능성 무기 섬유 등이 사용될 수 있으며, 실리카계 무기 섬유인 것이 바람직하다. In the present invention, ceramic fibers having excellent heat resistance such as alumina, zirconia, silicon carbide, carbon, and functional inorganic fibers such as metal fibers, carbon fibers, silicate fibers (glass fibers, rock fibers, silica fibers, ceramic fibers) and potassium titanate fibers may be used. It is preferable that it is a silica type inorganic fiber.
상기 무기 섬유는 4 내지 7 중량%로 포함되는 것이 본 발명에서 요구되는 물성을 발현할 수 있어 바람직하다.The inorganic fiber is preferably contained in 4 to 7% by weight can express the physical properties required in the present invention.
(D) 무기 중공체(D) inorganic hollow bodies
본 발명의 불연성 단열소재 조성물에 포함되는 무기 중공체는 실리카 에어로겔과 무기 섬유가 배합된 쉘부를 형성하여 다공성 3차원 조성물을 구성하는 역할을 한다.The inorganic hollow body contained in the nonflammable heat insulating material composition of the present invention forms a shell portion in which a silica airgel and inorganic fibers are mixed to form a porous three-dimensional composition.
본 발명의 일 관점에 따른 무기 중공체는 내부가 비어 있는 중공 구조의 미립자로서, 본 명세서에서 사용하는 용어 "중공"은 껍질을 이루는 무기 복합체에 의해 둘러싸인 내부의 빈 공간을 의미하는 것으로 이해될 수 있다.An inorganic hollow body according to one aspect of the present invention is a fine hollow particle having an empty interior. As used herein, the term "hollow" can be understood as meaning an empty space inside surrounded by a shell inorganic composite body have.
상기 무기 중공체로는 질석(vermiculite), 규조토(diatomite), 고령토(kaolin), 벤토나이트(bentonite), 보크사이트(bauxite), 볼 클레이(ball clay), 오닉셀(onyxell), 애터펄자이트(attapulgite), 석영(quartz), 유리 버블(glass bubble), 코레실(koresil) 및 마이크로포러스(microporous)로 이루어진 군에서 선택되는 것을 사용할 수 있으며, 이에 한정되는 것은 아니다.Examples of the inorganic hollow body include vermiculite, diatomite, kaolin, bentonite, bauxite, ball clay, onyxell, attapulgite, , Quartz, glass bubble, koresil, and microporous may be used, but the present invention is not limited thereto.
상기 무기 중공체는 20 내지 30 중량%로 포함되는 것이 본 발명에서 요구되는 물성을 발현할 수 있어 바람직하며, 50 내지 60㎛ 단위의 다공성인 것이 바람직하다.The inorganic hollow body is preferably contained in 20 to 30% by weight can express the physical properties required in the present invention, it is preferable that the porous of 50 to 60㎛ unit.
(E) 실란 화합물(E) Silane compound
본 발명의 불연성 단열소재 조성물에 포함되는 실란 화합물은 실리카 에어로겔, 실리카계 무기 섬유 등의 미세입자를 결합하고 코팅하는 역할을 한다.The silane compound included in the non-combustible insulating material composition of the present invention serves to bond and coat fine particles such as silica airgel and silica-based inorganic fibers.
실란은 가장 간단한 실리콘 단량체로 동일 분자중에 유기재료와 화학 결합하는 유기관능기와 무기재료와 반응할 수 있는 가수분해기를 가지고 있어 유기재료와 무기재료를 결합시키는 기능을 할 수 있다. 이를 통하여 본 발명의 불연성 단열소재 조성물의 기계적 강도, 내수성, 접착성 등의 품질 개량을 일으키며, 표면 코팅을 통한 내마무성과 후성이 증가하고, 전기적 성질 및 물리적 강도를 개선시킬 수 있다.Silane is the simplest silicone monomer, and has the organic functional group and the hydrolyzable group that can react with the organic material and the organic material in the same molecule can combine the organic material and the inorganic material. Through this, the quality improvement of mechanical strength, water resistance, adhesiveness, etc. of the non-combustible heat insulating material composition of the present invention, and the wear resistance and toughness through the surface coating increases, it is possible to improve the electrical properties and physical strength.
본 발명에서 실란 화합물은 알콕시 실란, 아미노 실란, 에폭시 실란, 아크릴 실란, 메르캅토 실란, 불소 실란, 메타크록시 실란, 비닐 실란, 클로로 실란 및 실라잔 등을 포함하며, 이에 한정되는 것은 아니다. In the present invention, the silane compound includes, but is not limited to, alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane.
상기 실란 화합물은 1 내지 3 중량%로 포함되는 것이 본 발명에서 요구되는 물성을 발현할 수 있어 바람직하다.The silane compound is preferably contained in 1 to 3% by weight can express the physical properties required in the present invention.
(F) 첨가제(F) Additive
본 발명에 따른 불연성 단열소재 조성물은 목적 및 용도에 따라 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제 등의 첨가제를 포함할 수 있으며, 그 사용량에는 제한은 없으나 0.01 내지 10 중량%, 바람직하게는 0.05 내지 10 중량%가 될 수 있다.The non-combustible heat insulating material composition according to the present invention may include additives such as impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifiers, and the like. The amount used is not limited but may be 0.01 to 10% by weight, preferably 0.05 to 10% by weight.
이하에서는 본 발명에 따른 따른 불연성 단열소재 조성물의 제조 방법에 대해서 설명한다.Hereinafter will be described a method for producing a non-combustible insulating material composition according to the present invention.
본 발명은 (a) 무기 바인더를 제조하는 단계; (b) 상기 무기 바인더 50 내지 70 중량%에 실리카 에어로겔 5 내지 10 중량%를 혼합하는 단계; (c) 무기 섬유 4 내지 7 중량%를 혼합하는 단계; (d) 다공성 무기 중공체 20 내지 30 중량%를 혼합하는 단계; (e) 실란 화합물 1 내지 3 중량%를 혼합하는 단계; 및 (f) 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 혼합하는 단계를 포함하는 불연성 단열소재 조성물의 제조 방법을 제공한다. The present invention comprises the steps of (a) preparing an inorganic binder; (b) mixing 5 to 10 wt% of the silica airgel with 50 to 70 wt% of the inorganic binder; (c) mixing 4 to 7 weight percent of inorganic fibers; (d) mixing 20 to 30 wt% of the porous inorganic hollow body; (e) mixing 1 to 3 weight percent of the silane compound; And (f) mixing at least one additive selected from the group consisting of impact modifiers, fungicides, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifiers. It provides a manufacturing method.
(a) 무기 바인더를 제조하는 단계에서는 액상 규산나트륨 50∼80 중량%에 대하여 첨가제로 염산 수용액 5∼10 중량%, 시트르산 수용액 5∼15 중량%, 인산수소알루미늄 수용액 5∼15 중량% 및 염화아연 수용액 5∼10 중량%로 혼합 및 반응시키는 것이 바람직하며, 상기 액상 규산나트륨, 염산 수용액, 시트르산 수용액, 인산수소알루미늄 수용액 및 염화아연 수용액을 포함하는 무기 바인더 100 중량부에 대해 3 중량부 이하의 경질 탄산칼슘 및/또는 무기 발수제를 첨가할 수 있다. 이에 따라, 내수성이 강하고 1,100℃ 이상의 고온에서도 불에 타지 않으며, 경화시간이 비교적 짧고 생산성이 증진된 무기 바인더를 제조할 수 있다.(a) In the step of preparing the inorganic binder, 5 to 10% by weight aqueous solution of hydrochloric acid, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate, and zinc chloride based on 50 to 80% by weight of liquid sodium silicate It is preferable to mix and react in an aqueous solution of 5 to 10% by weight, and hardly 3 parts by weight or less based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aqueous aluminum hydrogen phosphate solution and zinc chloride solution. Calcium carbonate and / or inorganic water repellent may be added. Accordingly, an inorganic binder having strong water resistance, not burning even at a high temperature of 1,100 ° C. or more, having a relatively short curing time and enhanced productivity can be produced.
(b) 단계에서는 상기 (a) 단계에서 제조된 무기 바인더 50 내지 70 중량%에 실리카 에어로겔 5 내지 10중량%를 혼합 및 반응시키는 것이 바람직하다. 이때, 실리카 에어로겔은 소듐 실리케이트 등이 원료로 사용될 수 있으며, 표면 강도 향상 및 소수성 유지 등 표면개질을 위하여 실란을 첨가할 수 있다. 졸 형태에서 기공을 유지하기 위하여 고속믹싱을 가하고 상압건조하여 균일한 크기의 기공을 갖는 고체와 기체층이 분리된 실리카 에어로겔을 얻을 수 있다. 상기와 같이 얻어진 실리카 에어로겔이 무기 바인더에 혼합됨으로써 무기 바인더의 소수성 및 단열성을 증진시킬 수 있다.In step (b), it is preferable to mix and react 5 to 10% by weight of the silica airgel with 50 to 70% by weight of the inorganic binder prepared in step (a). At this time, the silica airgel may be used as a raw material such as sodium silicate, and silane may be added for surface modification such as improvement of surface strength and hydrophobic maintenance. In order to maintain the pores in the sol form, high-speed mixing is applied, and atmospheric pressure drying is performed to obtain a silica airgel in which solid and gas layers are separated from each other with pores of uniform size. The silica airgel obtained as described above may be mixed with the inorganic binder to improve the hydrophobicity and heat insulation of the inorganic binder.
(c) 단계에서는 무기 섬유 4 내지 7 중량%를 상기 무기 바인더에 합침시켜 혼합 및 반응시키는 것이 바람직하다. 더욱 바람직하게는 1000rpm 수준으로 5분여간 고속 믹싱하여 분산시키는 것이 효율적이다. 이때 혼합된 무기 섬유는 기공에 흡착되기 어려운 에어로겔을 안착시키는 역할을 하며, 실리카계 무기 섬유를 사용하는 것이 보다 바람직하다.In the step (c), it is preferable to mix and react 4 to 7% by weight of the inorganic fiber with the inorganic binder. More preferably, it is efficient to disperse by mixing at high speed for about 5 minutes at 1000 rpm level. In this case, the mixed inorganic fibers serve to seat an airgel that is difficult to adsorb to pores, and more preferably, silica-based inorganic fibers are used.
(d) 단계에서는 상기 제조된 무기 바인더 50 내지 70 중량%에 다공성 무기 중공체 20 내지 30 중량%를 혼합 및 반응시키는 것이 바람직하다. 무기 중공체는 실리카 에어로겔과 무기 섬유가 배합된 쉘부를 형성하여 다공성 3차원 조성물을 구성하는 중요한 역할을 한다. 따라서, 물성이 변하지 않고 접착이 원활하게 이루어지기 위해서 상온에서 진행되는 것이 바람직하나, 이에 한정되는 것은 아니다.In step (d), it is preferable to mix and react 20 to 30% by weight of the porous inorganic hollow body with 50 to 70% by weight of the prepared inorganic binder. The inorganic hollow body plays an important role in constituting the porous three-dimensional composition by forming the shell portion in which the silica airgel and the inorganic fibers are blended. Therefore, it is preferable to proceed at room temperature so that the physical properties do not change and the adhesion is smoothly performed, but the present invention is not limited thereto.
(e) 단계에서는 상기 제조된 무기 바인더 50 내지 70 중량%에 실란 화합물 1 내지 3 중량%를 혼합 및 반응시키는 것이 바람직하다. 본 발명에서 실란 화합물은 알콕시 실란, 아미노 실란, 에폭시 실란, 아크릴 실란, 메르캅토 실란, 불소 실란, 메타크록시 실란, 비닐 실란, 클로로 실란 및 실라잔 등을 포함하며, 이에 한정되는 것은 아니다. 이렇게 형성된 상기 불연성 단열소재 조성물은 스프레이 형태의 단열소재로서 활용될 수 있다.In step (e), it is preferable to mix and react 1 to 3% by weight of the silane compound with 50 to 70% by weight of the prepared inorganic binder. In the present invention, the silane compound includes, but is not limited to, alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane. The non-combustible heat insulating material composition thus formed may be utilized as a heat insulating material in the form of a spray.
(f) 단계에서는 조성물의 용이한 혼련, 용융 등을 위해 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제 등을 추가로 포함하여 혼합 및 반응시킬 수 있으며, 이들의 성분 및 첨가량을 한정하는 것은 아니다.In step (f), the mixture may further include an impact modifier, an antibacterial agent, a mold release agent, a heat stabilizer, an antioxidant, a light stabilizer, a colorant, a stabilizer, a pigment, a dye, an opaque agent, and the like for easy mixing and melting of the composition. It does not restrict | limit these components and addition amount.
한편, 본 발명은 상기 불연성 단열소재 조성물을 경화하여 얻어지는 성형품을 제공한다.On the other hand, the present invention provides a molded article obtained by curing the non-combustible heat insulating material composition.
상기와 같이 제조된 본 발명의 불연성 단열소재 조성물 및/또는 그 성형품은 ASTM C518에 따라 측정 시 0.01 내지 0.04W/mK의 열전도율을 가지며, 바람직하게는 0.01 내지 0.03W/mK의 열전도율을 가진다. 또한, 접착강도는 0.5 내지 2.0N/mm2이며, 바람직하게는 1.0 내지 2.0N/mm2이다. 또한, 비중은 첨가제에 따라 변화될 수 있으나, 일반적으로 0.1 내지 0.8이며, 0.1 내지 0.3인 것이 바람직하고, 0.1 내지 0.2인 것이 보다 바람직하다. 상기 조성물은 효율적인 압축 저장이 가능하여 휴대가 편리하고, 시공 시 간단한 스프레이식 뿜칠 시공으로 단열효과뿐만 아니라 시공의 편의성, 우수한 시공품질 및 경제성을 나타낸다. The non-combustible insulating material composition and / or its molded article of the present invention prepared as described above has a thermal conductivity of 0.01 to 0.04 W / mK, and preferably has a thermal conductivity of 0.01 to 0.03 W / mK when measured according to ASTM C518. Further, the adhesive strength is 0.5 to 2.0 N / mm 2 , preferably 1.0 to 2.0 N / mm 2 . In addition, the specific gravity may vary depending on the additive, but is generally 0.1 to 0.8, preferably 0.1 to 0.3, more preferably 0.1 to 0.2. The composition is easy to carry as it is possible to efficiently compress and store, and exhibits convenience of construction, excellent construction quality and economy as well as insulation effect by simple spray-type construction during construction.
이하에서는 본 발명에 따른 따른 불연성 단열소재 조성물을 사용한 스프레이 방식의 단열재 코팅 방법에 대해서 설명한다.Hereinafter, a method of coating a heat insulating material using a non-combustible heat insulating material composition according to the present invention will be described.
본 발명은 단열이 필요한 피도체의 표면에 (a) 무기 바인더를 열증착 코팅하는 단계; (b) 상기 본 발명에 따른 따른 불연성 단열소재 조성물의 제조 방법에 의해 제조된 불연성 단열소재 조성물을 스프레이 방식으로 도포하는 단계; (c) 상기 도포된 불연성 단열소재 조성물을 양생하는 단계; 및 (d) 실란 화합물로 코팅하는 단계를 포함하는 스프레이 방식의 단열재 코팅 방법을 제공한다.The present invention comprises the steps of (a) thermo-deposited coating the inorganic binder on the surface of the subject to be insulated; (b) applying the non-combustible insulating material composition prepared by the method for producing a non-combustible insulating material composition according to the present invention by a spray method; (c) curing the applied non-combustible heat insulating material composition; And (d) provides a spray coating method of the insulating method comprising the step of coating with a silane compound.
(a) 단계에서는 단열이 필요한 피도체의 표면에, 단열시공을 위한 공장 가동을 계속 유지하는 상태에서, 70∼400℃의 온도를 유지하여 무기 바인더를 열증착 코팅한다. 상기 피도체의 표면온도는 70∼200℃인 것이 바람직하며, 더욱 바람직하게는 80∼120℃인 것이 좋다. 상기 무기 바인더는 무기 바인더 뿐만 아니라 실리카계 무기 섬유를 혼합한 것이 될 수 있으며, 각각을 단독으로 사용하여도 무방하다. 상기 무기 바인더는 상기 피도체와 견고히 접착하여 단열소재가 단열이 필요한 피도체와 떨어지지 않도록 충분히 접착시키는 역할을 한다.In the step (a), the inorganic binder is thermally evaporated and coated at a temperature of 70 to 400 ° C. in a state in which the plant operation for thermal insulation is continuously maintained on the surface of the subject to be insulated. It is preferable that the surface temperature of the said to-be-contained body is 70-200 degreeC, More preferably, it is 80-120 degreeC. The inorganic binder may be a mixture of not only an inorganic binder but also silica-based inorganic fibers, and each may be used alone. The inorganic binder firmly adheres to the subject and serves to sufficiently adhere the insulating material so that the insulating material does not fall off from the subject requiring insulation.
(b) 단계에서는 본 발명에 따른 따른 불연성 단열소재 조성물의 제조 방법에 의해 제조된 불연성 단열소재 조성물을 상기 무기 바인더가 열증착 코팅된 피도체의 표면에 스프레이 방식으로 도포한다. 상기 스프레이 방식의 도포는 상기 불연성 단열소재 조성물을 1∼10mm의 두께로 도포할 수 있다. 상기 스프레이 방식의 불연성 단열소재는 코팅 두께에 따라 단열효과가 증가하므로, 시공 여건에 따라 두께를 조절할 수 있다. 시공에 있어서 가용한 피도체의 부피증가량과 단열효과를 고려해 볼 때, 상기 불연성 단열소재의 코팅 두께는 3∼7mm로 하는 것이 바람직하고, 3∼5mm로 하는 것이 보다 바람직하다.In the step (b), the non-combustible insulating material composition prepared by the method for producing a non-combustible insulating material composition according to the present invention is applied by spraying on the surface of the inorganic binder-heat-deposited coating. In the spray method, the non-combustible heat insulating material composition may be applied to a thickness of 1 to 10 mm. Since the non-flammable insulation material of the spray method increases the insulation effect according to the coating thickness, the thickness can be adjusted according to the construction conditions. In consideration of the volume increase amount and heat insulation effect of the available conductor in the construction, the coating thickness of the non-combustible heat insulating material is preferably 3-7mm, more preferably 3-5mm.
(c) 단계에서는 상기 도포된 불연성 단열소재 조성물을 양생한다.상기 도포된 불연성 단열소재 조성물이 최종압축강도에 도달하기까지 화학작용이 진행되므로 일광의 직사, 한기, 풍우 등을 피하도록 하는 것이 바람직하다. 상기 도포된 불연성 단열소재 조성물의 양생은 특별한 조치 없이 자연건조 및 보온으로 양생이 가능하다. 상기 양생의 기간은 반나절 내지 3일이 될 수 있으며, 바람직하게는 1일 내지 2일이다.In step (c), the coated non-combustible heat insulating material composition is cured. Since the chemical reaction proceeds until the applied non-combustible heat insulating material composition reaches the final compressive strength, it is preferable to avoid direct sunlight, cold, and rainy weather. Do. Curing of the applied non-combustible insulating material composition can be cured by natural drying and insulation without special measures. The period of curing may be half day to 3 days, preferably 1 day to 2 days.
(d) 단계에서는 양생이 완료된 불연성 단열소재 조성물을 실란 화합물로 코팅한다. 상기 실란 화합물 코팅을 통하여, 불연성 단열소재 조성물의 표면이 끈적임 없이 매끈하고 부드럽게 다듬어진다. 상기 실란 화합물 코팅은 유기 실란을 사용하는 것이 바람직하나, 이에 한정되는 것은 아니다.In step (d), the cured non-combustible insulating material composition is coated with a silane compound. Through the silane compound coating, the surface of the nonflammable insulating material composition is smooth and smooth without being sticky. The silane compound coating is preferably an organic silane, but is not limited thereto.
이하, 실시예에 의하여 본 발명을 더욱 상세히 설명하고자 한다. 단, 하기 실시예는 본 발명의 예시일 뿐 본 발명이 반드시 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are only examples of the present invention and the present invention is not necessarily limited thereto.
실시예Example
본 발명의 불연성 단열소재 조성물의 성능을 평가하기 위하여 아래 표 1에 나타낸 배합비율로 실시예 1 내지 5의 조성물을 제조하고, 각 조성물의 배합비율에 따른 열전도율, 비중 및 접착강도 시험을 실시하여 그 결과를 아래 표 2에 나타내었다.In order to evaluate the performance of the non-combustible insulating material composition of the present invention, the compositions of Examples 1 to 5 were prepared at the blending ratios shown in Table 1 below, and the thermal conductivity, specific gravity, and adhesive strength test according to the blending ratios of the respective compositions were performed. The results are shown in Table 2 below.
상기 표 2의 결과로부터, 상기 실시예 1 내지 5에 따른 단열소재 조성물을 경화하여 만든 성형품은 0.01 내지 0.04W/mK의 열전도율, 0.1 내지 0.2의 비중, 및 0.5 내지 2.0N/mm2의 접착강도의 우수한 물성을 나타냄을 알 수 있었다.From the results of Table 2, the molded article made by curing the heat insulating material composition according to Examples 1 to 5 has a thermal conductivity of 0.01 to 0.04 W / mK, specific gravity of 0.1 to 0.2, and adhesive strength of 0.5 to 2.0 N / mm 2 It can be seen that the excellent physical properties of.
또한, 본 발명에 따른 단열소재 조성물의 차열성, 차염성 및 내화성 등의 성능을 보다 구체적으로 평가하기 위해, 가열된 파이프 위에 상기 실시예 1에 따른 조성물을 소정의 두께로 스프레이 도포한 후, 도포 전후의 파이프 온도에 따른 단열 효과, 내열성, 유독가스 유무, 차음 효과 시험을 실시하여 그 결과를 아래 표 3에 나타내었다. In addition, in order to more specifically evaluate the performance of heat insulating material, flame resistance and fire resistance of the heat insulating material composition according to the present invention, the composition according to Example 1 is spray-coated to a predetermined thickness on a heated pipe, and then applied. Insulation effect, heat resistance, toxic gas presence, and sound insulation effect test according to the pipe temperature before and after was shown in Table 3 below.
상기 표 3의 결과로부터, 상기 불연성 단열소재 조성물의 코팅 두께가 3mm 이상인 경우 아주 우수한 단열 효과, 내열성, 차음효과를 나타내었으며, 유독가스는 전혀 발생하지 않음을 알 수 있었다. 다만, 피도체의 부피증가량과 단열효과를 고려할 때, 본 발명에 따른 불연성 단열소재 조성물의 코팅 두께는 3 내지 7mm이 바람직하고, 3 내지 5mm로 하는 것이 보다 바람직하다. From the results of Table 3, when the coating thickness of the non-combustible heat insulating material composition is 3mm or more, it showed a very good heat insulation effect, heat resistance, sound insulation effect, no toxic gas is generated. However, in consideration of the volume increase amount and heat insulation effect of the subject, the coating thickness of the non-combustible heat insulating material composition according to the present invention is preferably 3 to 7mm, more preferably 3 to 5mm.
이와 같이, 본 발명에 따른 불연성 단열소재 조성물은 단열재 및 내화재의 성질을 동시에 구현할 수 있으며, 단열을 원하는 피도체에 스프레이식 뿜칠 시공으로 도포하여 간편한 코팅이 가능하므로 우수한 단열효과뿐만 아니라 시공의 편의성, 우수한 시공품질 및 경제성을 나타낸다.As described above, the non-combustible heat insulating material composition according to the present invention can realize the properties of the heat insulating material and the refractory material at the same time, and can be easily coated by spray-spraying coating the desired heat-insulating material, so not only an excellent heat insulating effect but also convenience of construction, Excellent construction quality and economy.
이상, 본 발명을 상기 실시예를 중심으로 하여 설명하였으나 이는 예시에 지나지 아니하며, 본 발명은 본 발명의 기술 분야에서 통상의 지식을 가진 자에게 자명한 다양한 변형 및 균등한 기타의 실시예를 이하에 첨부한 특허청구범위 내에서 수행할 수 있다는 사실을 이해하여야 한다.
In the above, the present invention has been described with reference to the above embodiments, which are only examples, and the present invention will be described below in various modifications and equivalents which are obvious to those skilled in the art. It should be understood that it can be carried out within the scope of the appended claims.
Claims (17)
상기 무기 바인더는 무기 바인더 100 중량%에 대해 액상 규산나트륨 50∼80 중량%, 염산 수용액 5∼10 중량%, 시트르산 수용액 5∼15 중량%, 인산수소알루미늄 수용액 5∼15 중량% 및 염화아연 수용액 5∼10 중량%를 포함하는 것을 특징으로 하는 불연성 단열소재 조성물.The method of claim 1,
The inorganic binder is 50 to 80% by weight of liquid sodium silicate, 5 to 10% by weight aqueous hydrochloric acid solution, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate and 5% aqueous zinc chloride solution to 100% by weight of the inorganic binder. Non-combustible heat insulating material composition comprising ~ 10% by weight.
상기 무기 바인더는 상기 액상 규산나트륨, 염산 수용액, 시트르산 수용액, 인산수소알루미늄 수용액 및 염화아연 수용액을 포함하는 무기 바인더 100 중량부에 대해 3 중량부 이하의 경질 탄산칼슘 또는 무기 발수제를 추가로 포함하는 것을 특징으로 하는 불연성 단열소재 조성물.3. The method of claim 2,
The inorganic binder further includes 3 parts by weight or less of hard calcium carbonate or an inorganic water repellent based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aqueous aluminum hydrogen phosphate solution and zinc chloride solution. Incombustible insulating material composition characterized in.
상기 무기 섬유는 실리카계 무기 섬유인 것을 특징으로 하는 불연성 단열소재 조성물.3. The method according to claim 1 or 2,
The inorganic fiber is a non-flammable insulating material composition, characterized in that the silica-based inorganic fibers.
상기 무기 중공체는 질석, 규조토, 고령토, 벤토나이트, 보크사이트, 볼 클레이, 오닉셀, 애터펄자이트, 석영, 유리 버블, 코레실 및 마이크로포러스로 이루어진 군으로부터 선택된 하나 이상을 포함하는 것을 특징으로 하는 불연성 단열소재 조성물.3. The method according to claim 1 or 2,
The inorganic hollow body may include at least one selected from the group consisting of vermiculite, diatomaceous earth, kaolin, bentonite, bauxite, ball clay, onyxel, attapulgite, quartz, glass bubble, coresyl and microporous. Non-combustible heat insulating material composition.
상기 실란 화합물은 알콕시 실란, 아미노 실란, 에폭시 실란, 아크릴 실란, 메르캅토 실란, 불소 실란, 메타크록시 실란, 비닐 실란, 클로로 실란 및 실라잔으로 이루어진 군으로부터 선택된 하나 이상을 포함하는 것을 특징으로 하는 불연성 단열소재 조성물.3. The method according to claim 1 or 2,
The silane compound is characterized in that it comprises at least one selected from the group consisting of alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane Incombustible insulation material composition.
상기 불연성 단열소재 조성물은 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 추가로 포함하는 것을 특징으로 하는 불연성 단열소재 조성물.3. The method according to claim 1 or 2,
The non-combustible insulating material composition is non-combustible, characterized in that it further comprises at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifying agents Insulation material composition.
열전도율이 ASTM C518에 따라 측정 시 0.01∼0.04W/mK 인 성형품.The method of claim 8,
Molded articles with a thermal conductivity of 0.01 to 0.04 W / mK as measured according to ASTM C518.
비중이 0.1∼0.3 인 성형품.The method of claim 8,
Molded product with specific gravity of 0.1 to 0.3.
접착강도가 1.0∼2.0N/mm2 인 성형품.The method of claim 8,
Molded product with adhesive strength of 1.0 ~ 2.0N / mm 2 .
(b) 상기 무기 바인더 50 내지 70 중량%에 실리카 에어로겔 5 내지 10 중량%를 혼합하는 단계;
(c) 무기 섬유 4 내지 7 중량%를 혼합하는 단계;
(d) 다공성 무기 중공체 20 내지 30 중량%를 혼합하는 단계; 및
(e) 실란 화합물 1 내지 3 중량%를 혼합하는 단계
를 포함하는 불연성 단열소재 조성물 제조 방법.(a) preparing an inorganic binder;
(b) mixing 5 to 10 wt% of the silica airgel with 50 to 70 wt% of the inorganic binder;
(c) mixing 4 to 7 weight percent of inorganic fibers;
(d) mixing 20 to 30 wt% of the porous inorganic hollow body; And
(e) mixing 1 to 3 wt% of the silane compound
Non-combustible insulating material composition manufacturing method comprising a.
상기 무기 바인더는 무기 바인더 100 중량%에 대해 액상 규산나트륨 50∼80 중량%, 염산 수용액 5∼10 중량%, 시트르산 수용액 5∼15 중량%, 인산수소알루미늄 수용액 5∼15 중량% 및 염화아연 수용액 5∼10 중량%를 포함하는 것을 특징으로 하는 불연성 단열소재 조성물 제조 방법.13. The method of claim 12,
The inorganic binder is 50 to 80% by weight of liquid sodium silicate, 5 to 10% by weight aqueous hydrochloric acid solution, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate and 5% aqueous zinc chloride solution to 100% by weight of the inorganic binder. Non-combustible insulating material composition manufacturing method comprising a ~ 10% by weight.
(f) 충격보강제, 향균제, 이형제, 열안정제, 산화방지제, 광안정제, 착색제, 안정제, 안료, 염료 및 불투명화제로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 혼합하는 단계를 추가로 포함하는 것을 특징으로 하는 불연성 단열소재 조성물 제조 방법.13. The method of claim 12,
(f) mixing at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, thermal stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifiers Method for producing a non-combustible insulating material composition.
(a) 무기 바인더를 열증착 코팅하는 단계;
(b) 제 12 항 내지 제 14 항 중 어느 한 항에 의해 제조된 불연성 단열소재 조성물을 스프레이 방식으로 도포하는 단계;
(c) 상기 도포된 불연성 단열소재 조성물을 양생하는 단계; 및
(d) 실란 화합물로 코팅하는 단계
를 포함하는 스프레이 방식의 단열재 코팅 방법.On the surface of the object requiring insulation
(a) thermodepositing the inorganic binder;
(b) applying a non-flammable insulating material composition prepared according to any one of claims 12 to 14 by a spray method;
(c) curing the applied non-combustible heat insulating material composition; And
(d) coating with a silane compound
Spray coating method of the heat insulating material comprising a.
상기 열증착 코팅은 상기 피도체의 표면온도가 80∼120℃인 것을 특징으로 하는 스프레이 방식의 단열재 코팅 방법.The method of claim 15,
The thermal evaporation coating is a spray coating method of the heat insulating material, characterized in that the surface temperature of the object is 80 ~ 120 ℃.
상기 스프레이 방식의 도포는 상기 불연성 단열소재 조성물을 3∼7mm의 두께로 도포하는 것을 특징으로 하는 스프레이 방식의 단열재 코팅 방법.The method of claim 15,
The spray coating method is a spray coating method of the heat insulating material, characterized in that for coating the non-combustible heat insulating material composition to a thickness of 3 to 7mm.
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| KR1020130058623A KR101306632B1 (en) | 2013-05-23 | 2013-05-23 | Spray-type nonflammable insulating material composition and production method and coating method thereof |
| PCT/KR2014/004596 WO2014189312A1 (en) | 2013-05-23 | 2014-05-23 | Spray-type incombustible heat insulator composition, preparation method therefor, and coating method thereof |
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| KR1020130058623A KR101306632B1 (en) | 2013-05-23 | 2013-05-23 | Spray-type nonflammable insulating material composition and production method and coating method thereof |
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