KR102575296B1 - Method for making noncombustible foam thermal insulation composition including water resistance inorgarnic resin - Google Patents
Method for making noncombustible foam thermal insulation composition including water resistance inorgarnic resin Download PDFInfo
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
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- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/241—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening using microwave heating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
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- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
- C01B33/325—After-treatment, e.g. purification or stabilisation of solutions, granulation; Dissolution; Obtaining solid silicate, e.g. from a solution by spray-drying, flashing off water or adding a coagulant
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- C01F7/00—Compounds of aluminium
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- C01F7/021—After-treatment of oxides or hydroxides
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/0013—Boron compounds
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
- C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
- C04B22/064—Oxides, Hydroxides of the alkali or alkaline-earth metals of the alkaline-earth metals
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
- C04B22/066—Magnesia; Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/12—Acids or salts thereof containing halogen in the anion
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- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0003—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of electric or wave energy or particle radiation
- C04B40/001—Electromagnetic waves
- C04B40/0014—Microwaves
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
Abstract
본 발명은 내수성 무기수지를 함유하는 불연 발포체의 제조방법에 관한 것이며, 보다 상세하게는 수산화바륨수화물 혼합 조성을 특징으로 하는 내수성 무기수지에 발포 균일성을 부여하여 불연성의 발포체를 제조하는 방법에 관한 것이다.
본 발명에 의하면, 수분 흡수율, 불연성 질량 감소율, 열전도율, 연소가스(쥐행동 정지시간), 치수 안정성(가로), 치수 안정성(세로)가 우수한 효과가 있다. The present invention relates to a method for producing a non-combustible foam containing a water-resistant inorganic resin, and more particularly, to a method for producing a non-combustible foam by imparting foaming uniformity to a water-resistant inorganic resin characterized by a mixed composition of barium hydroxide hydrate. .
According to the present invention, there are excellent effects in water absorption rate, incombustible mass reduction rate, thermal conductivity, combustion gas (mouse behavior stop time), dimensional stability (horizontal), and dimensional stability (vertical).
Description
본 발명은 내수성 무기수지를 함유하는 불연 발포 단열재의 제조방법에 관한 것이며, 보다 상세하게는 수산화바륨수화물 혼합 조성을 특징으로 하는 내수성 무기수지에 발포 균일성을 부여하여 불연성의 발포체를 제조하는 방법에 관한 것이다.The present invention relates to a method for manufacturing a non-combustible foam insulation containing a water-resistant inorganic resin, and more particularly, to a method for producing a non-combustible foam by imparting foaming uniformity to a water-resistant inorganic resin characterized by a mixed composition of barium hydroxide hydrate. will be.
매년 반복되는 가연성 단열재의 화재 발생으로 인하여 유독가스 발생과 화상으로 인하여 많은 인원과 재산의 피해를 반복하고 있어서 불연성과 유독가스를 발생되지 않는 단열재의 필요성이 증폭되고 있다.Due to the occurrence of fires in combustible insulation materials repeated every year, damage to many people and property due to toxic gas generation and burns is repeated, so the need for insulation materials that do not generate non-combustible and toxic gases is amplified.
최근 불연성과 유독가스를 극복하기 위하여 무기 화학물을 이용한 글라스울이 사용되고 있다. 그러나, 이러한 제품은 불연성은 우수하나 이동하거나 사용 시에 가루가 발생되어 인체에 흡수되어 축적되는 호흡기 질환을 불러 일으키는 치명적인 문제점이 있으며 이러한 문제를 극복하기 위하여 경제성과 불연 성능이 있는 액상 알칼리 실리케이트를 사용하여 시도하고 있다. 하지만, 액상 알칼리 실리케이트 자체가 내수력이 취약하여 발포 후 단열재를 생산했을 때 흡수성이 약하며 내후성이 떨어져 산업화에 적용할 수 없다. Recently, glass wool using inorganic chemicals has been used to overcome incombustibility and toxic gas. However, these products are excellent in incombustibility, but have a fatal problem of causing respiratory diseases that are absorbed and accumulated in the human body due to generation of powder during movement or use. are trying However, liquid alkali silicate itself has poor water resistance, so when it is produced as an insulation material after foaming, water absorption is weak and weather resistance is low, so it cannot be applied to industrialization.
이러한 알칼리 실리케이트의 단점을 극복하기 위하여 내수성 무기수지 제품을 활용하여 발포 제품의 산업화를 위하여 균일성과 내수력을 부여하는 방법의 개발이 필요한 실정이다. In order to overcome the disadvantages of these alkali silicates, it is necessary to develop a method for imparting uniformity and water resistance for industrialization of foamed products by utilizing water-resistant inorganic resin products.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 창안된 것으로, 알칼리 실리케이트에 내수력이 보완된 내수무기수지를 이용하여 발포 안정화와 결합제 등을 조합하여 내수성과 흡수율과 단열재의 열전도율과 연소성과 유독가스 발생이 없으며 치수안정을 확보하여 실제 산업화에 활용할 수 있는 무기질 불연 발포체를 제조하는 방법을 제공하고 있다. 또한, 본 발명은 내수성 무기수지에 수산화바륨수화물, 수산화알루미늄, 삼산화붕소를 혼합하여 교반하여 발포 균일성을 부여하여 불연성의 발포체를 제조하는 방법을 제공하는 것을 목적으로 한다.The present invention was devised to solve the above conventional problems, and by using a water-resistant inorganic resin in which water resistance is supplemented with alkali silicate, by combining foam stabilization and a binder, water resistance and absorption rate, heat conductivity of the insulation material, combustibility and toxicity It provides a method for manufacturing inorganic incombustible foam that does not generate gas and secures dimensional stability and can be used for actual industrialization. In addition, an object of the present invention is to provide a method for producing a nonflammable foam by mixing and stirring barium hydroxide hydrate, aluminum hydroxide, and boron trioxide in a water-resistant inorganic resin to impart foaming uniformity.
본 발명의 일 실시 형태인 내수성 무기수지를 함유하는 불연 발포체의 제조방법은 액상 알카리 실리케이트 및 산(acid)을 포함하는 혼합물 100중량부에 수산화바륨8수화물(Barium hydroxide octahydrate)을 5 내지 15중량부를 혼합하여 15분 내지 30분 동안 교반하는 제1 단계; 상기 제1 단계의 혼합물에 수산화알루미늄(Aluminium hydroxide), 구리수산화물(Copper hydroxide), 마그네슘수산화물(Magnesium hydroxide) 중 1종 또는 2종 혼합물을 5 내지 15중량부를 혼합하여 15분 내지 30분 동안 교반하는 제2 단계; 상기 제2 단계의 혼합물에 산화아연(Zinc Oxide), 산화알루미늄(Aluminum oxide) 중 1종 또는 2종 혼합물을 1 내지 10중량부를 혼합하여 15분 내지 30분 동안 교반하는 제3 단계; 상기 제3 단계의 혼합물에 삼산화붕소(Boric anhydride)를 2 내지 12중량부를 혼합하여 15분 내지 30분 동안 교반하는 제4 단계; 및 제4 단계의 혼합물을 금형에 투입하고 15분 내지 30분 동안 가열하여 건조하는 제5 단계;를 포함한다. In one embodiment of the present invention, a method for producing a noncombustible foam containing a water-resistant inorganic resin includes 5 to 15 parts by weight of barium hydroxide octahydrate to 100 parts by weight of a mixture containing a liquid alkali silicate and an acid. A first step of mixing and stirring for 15 to 30 minutes; Mixing 5 to 15 parts by weight of one or two mixtures of aluminum hydroxide, copper hydroxide, and magnesium hydroxide with the mixture in the first step and stirring for 15 to 30 minutes second step; A third step of mixing 1 to 10 parts by weight of one or a mixture of two of zinc oxide and aluminum oxide with the mixture of the second step and stirring for 15 to 30 minutes; A fourth step of mixing 2 to 12 parts by weight of boric anhydride with the mixture of the third step and stirring for 15 to 30 minutes; and a fifth step of putting the mixture of the fourth step into a mold and drying it by heating for 15 to 30 minutes.
상기 제5 단계에의 가열 및 건조는 마이크로웨이브에 의하여 행해지며, 상기 제5 단계에 의하여 제조된 불연 발포체의 수분 흡수율(KS L 5114 기준)은 30중량% 내지 40중량%, 불연성 질량 감소율은 11중량% 내지 13중량%, 열전도율은 0.03wmK 내지 0.07wmK, 연소가스에 대한 쥐행동정지시간은 14분 내지 15분, 가로 치수 안정성은 0.1 내지 0.13부피%, 세로 치수 안정성은 0.1 내지 0.12부피%인 것을 특징으로 한다. The heating and drying in the fifth step is performed by microwave, and the water absorption rate (KS L 5114 standard) of the incombustible foam prepared in the fifth step is 30% to 40% by weight, and the incombustible mass reduction rate is 11 weight% to 13% by weight, thermal conductivity of 0.03wmK to 0.07wmK, mouse action suspension time for combustion gas is 14 to 15 minutes, lateral dimensional stability is 0.1 to 0.13% by volume, and longitudinal dimensional stability is 0.1 to 0.12% by volume. characterized by
상기 제4 단계에서 염화리튬(Lithium chloride) 1 내지 3중량부, 황산염(sulfate) 1 내지 3중량부를 추가로 혼합하여 교반하며, 상기 제4 단계의 교반 후의 혼합물의 점도는 600cps 내지 1,000cps인 것을 특징으로 한다. In the fourth step, 1 to 3 parts by weight of lithium chloride and 1 to 3 parts by weight of sulfate are further mixed and stirred, and the viscosity of the mixture after stirring in the fourth step is 600cps to 1,000cps. to be characterized
상기 제1 단계에서 액상 알카리 실리케이트 및 산(acid)을 포함하는 혼합물은 액상 규산나트륨 45 내지 60중량부, 에틸렌디클로라이드 5 내지 7중량부, 리튬클로라이드 0.05 내지 0.1중량부, 헥사히드레이트 0.05 내지 0.1중량부, 증류수 1 내지 5중량부, 염산 1 내지 3중량부의 혼합물을 40℃에서 300rpm으로 10분동안 회전하여 얻어진 혼합물인 것을 특징으로 한다. In the first step, the mixture containing the liquid alkali silicate and the acid is 45 to 60 parts by weight of liquid sodium silicate, 5 to 7 parts by weight of ethylene dichloride, 0.05 to 0.1 parts by weight of lithium chloride, and 0.05 to 0.1 part by weight of hexahydrate. It is characterized in that it is a mixture obtained by rotating a mixture of parts by weight, 1 to 5 parts by weight of distilled water, and 1 to 3 parts by weight of hydrochloric acid at 40 ° C. at 300 rpm for 10 minutes.
상기 제1 단계에서 액상 알카리 실리케이트 및 산(acid)을 포함하는 혼합물에 반응억제제 0.3 내지 0.5중량부를 추가로 혼합하며, 상기 산은, 황산, 황산암모늄, 황산구리, 황산알루미늄, 질산, 질산알루미늄, 염산, 염산암모늄, 붕산, 규산, 불산, 불산암모늄, 다이머산, 빙초산 중 어느 하나이며, 상기 제3 단계의 산화아연은 산화 아연 분말의 표면에 니켈을 코팅하여 사용하는 것을 특징으로 한다. In the first step, 0.3 to 0.5 parts by weight of a reaction inhibitor is further mixed with the mixture containing the liquid alkali silicate and acid, and the acid is silver, sulfuric acid, ammonium sulfate, copper sulfate, aluminum sulfate, nitric acid, aluminum nitrate, hydrochloric acid, It is any one of ammonium hydrochloride, boric acid, silicic acid, hydrofluoric acid, ammonium hydrofluoric acid, dimer acid, and glacial acetic acid, and the zinc oxide in the third step is characterized in that the surface of the zinc oxide powder is coated with nickel.
상술한 바와 같이 본 발명의 발포 균일성을 부여하여 불연성의 발포체를 제조하는 방법에 의하면, 수분 흡수율, 불연성 질량 감소율, 열전도율, 연소가스(쥐행동 정지시간), 치수 안정성(가로), 치수 안정성(세로)가 우수한 효과가 있다. As described above, according to the method for producing an incombustible foam by imparting foaming uniformity of the present invention, the water absorption rate, the incombustible mass reduction rate, the thermal conductivity, the combustion gas (mouse behavior stop time), the dimensional stability (horizontal), the dimensional stability ( vertical) has an excellent effect.
도 1은 본 발명의 기본 실시형태인 내수성 무기수지를 함유하는 불연 발포체의 제조방법의 플로우 차트를 나타낸다.
도 2는 본 발명의 일 실시형태인 내수성 무기수지를 함유하는 불연 발포체의 제조방법의 플로우 차트를 나타낸다. 1 shows a flow chart of a method for producing an incombustible foam containing a water-resistant inorganic resin, which is a basic embodiment of the present invention.
Fig. 2 shows a flow chart of a method for producing an incombustible foam containing a water-resistant inorganic resin, which is an embodiment of the present invention.
하기에 나타난 도면에서 동일한 참조부호는 동일한 구성요소를 지칭하며, 도면상에서 각 구성요소의 크기는 설명의 명료성과 편의상 과장되어 있을 수 있다. 한편, 이하에 설명되는 실시예는 단지 예시적인 것에 불과하며, 이러한 실시예로부터 다양한 변형이 가능하다. 이하에서, 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 또한 어떤 부분이 어떤 구성 요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다. 또한, 명세서에 기재된 “...부”등의 용어는 적어도 하나의 기능이나 동작을 처리하는 단위를 의미한다.In the drawings shown below, the same reference numerals denote the same components, and the size of each component in the drawings may be exaggerated for clarity and convenience of description. Meanwhile, the embodiments described below are merely illustrative, and various modifications are possible from these embodiments. In the following, terms are used only for the purpose of distinguishing one component from another. Singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as "... unit" described in the specification mean a unit that processes at least one function or operation.
도 1 및 2는 본 발명의 기본 및 일 실시형태인 내수성 무기수지를 함유하는 불연 발포체의 제조방법의 플로우 차트를 나타낸다. 하기에서 내수성 무기수지를 함유하는 불연 발포체의 제조방법에 대하여 구체적으로 설명한다. 1 and 2 show a flow chart of a method for producing an incombustible foam containing a water-resistant inorganic resin, which is a basic and one embodiment of the present invention. In the following, a method for producing an incombustible foam containing a water-resistant inorganic resin will be described in detail.
본 발명의 일 실시 형태인 내수성 무기수지를 함유하는 불연 발포체의 제조방법은 액상 알카리 실리케이트 및 산(acid)을 포함하는 혼합물 100중량부에 수산화바륨8수화물(Barium hydroxide octahydrate)을 5 내지 15중량부를 혼합하여 15분 내지 30분 동안 교반하는 제1 단계; 상기 제1 단계의 혼합물에 수산화알루미늄(Aluminium hydroxide), 구리수산화물(Copper hydroxide), 마그네슘수산화물(Magnesium hydroxide) 중 1종 또는 2종 혼합물을 5 내지 15중량부를 혼합하여 15분 내지 30분 동안 교반하는 제2 단계; 상기 제2 단계의 혼합물에 산화아연(Zinc Oxide), 산화알루미늄(Aluminum oxide) 중 1종 또는 2종 혼합물을 1 내지 10중량부를 혼합하여 15분 내지 30분 동안 교반하는 제3 단계; 상기 제3 단계의 혼합물에 삼산화붕소(Boric anhydride)를 2 내지 12중량부를 혼합하여 15분 내지 30분 동안 교반하는 제4 단계; 및 상기 제4 단계의 혼합물을 금형에 투입하고 가열하여 건조하는 제5 단계;를 포함한다. In one embodiment of the present invention, a method for producing a noncombustible foam containing a water-resistant inorganic resin includes 5 to 15 parts by weight of barium hydroxide octahydrate to 100 parts by weight of a mixture containing a liquid alkali silicate and an acid. A first step of mixing and stirring for 15 to 30 minutes; Mixing 5 to 15 parts by weight of one or two mixtures of aluminum hydroxide, copper hydroxide, and magnesium hydroxide with the mixture in the first step and stirring for 15 to 30 minutes second stage; A third step of mixing 1 to 10 parts by weight of one or a mixture of two of zinc oxide and aluminum oxide with the mixture of the second step and stirring for 15 to 30 minutes; A fourth step of mixing 2 to 12 parts by weight of boric anhydride with the mixture of the third step and stirring for 15 to 30 minutes; and a fifth step of putting the mixture of the fourth step into a mold and heating and drying the mixture.
본 발명의 제1 단계에서, 액상 알카리 실리케이트 및 산(acid)을 포함하는 혼합물은 액상 규산나트륨 45 내지 60중량부, 에틸렌디클로라이드 5 내지 7중량부, 리튬클로라이드 0.05 내지 0.1중량부, 헥사히드레이트 0.05 내지 0.1중량부, 증류수 1 내지 5중량부, 염산 1 내지 3중량부의 혼합물을 40℃에서 300rpm으로 10분동안 회전하여 얻어진 혼합물을 바람직하게 사용할 수 있다. In the first step of the present invention, the mixture containing liquid alkali silicate and acid is 45 to 60 parts by weight of liquid sodium silicate, 5 to 7 parts by weight of ethylenedichloride, 0.05 to 0.1 parts by weight of lithium chloride, hexahydrate A mixture obtained by rotating a mixture of 0.05 to 0.1 parts by weight, 1 to 5 parts by weight of distilled water, and 1 to 3 parts by weight of hydrochloric acid at 40° C. at 300 rpm for 10 minutes can be preferably used.
액상 알카리 실리케이트는 액상 규산나트륨 및 액산 규산포타시움의 어느 하나 또는 혼합물을 사용하여 얻어질 수 있다. 예를 들어, 액상 규산나트륨, 에틸렌디클로라이드, 리튬클로라이드, 헥사히드레이트, 증류수, 염산을 혼합하고, 35℃ 내지 50℃에서 280rpm 내지 330rpm으로 5분 내지 15분 동안 회전하여 제조할 수 있다. Liquid alkali silicate can be obtained using either or a mixture of liquid sodium silicate and liquid potassium silicate. For example, it may be prepared by mixing liquid sodium silicate, ethylene dichloride, lithium chloride, hexahydrate, distilled water, and hydrochloric acid, and rotating at 280 rpm to 330 rpm for 5 minutes to 15 minutes at 35 ° C to 50 ° C.
상기 산은, 황산, 황산암모늄, 황산구리, 황산알루미늄, 질산, 질산알루미늄, 염산, 염산암모늄, 붕산, 규산, 불산, 불산암모늄, 다이머산, 빙초산 중 어느 하나를 사용할 수 있다. 바람직하게는 염산을 사용할 수 있다. As the acid, any one of sulfuric acid, ammonium sulfate, copper sulfate, aluminum sulfate, nitric acid, aluminum nitrate, hydrochloric acid, ammonium hydrochloride, boric acid, silicic acid, hydrofluoric acid, ammonium hydrofluoric acid, dimer acid, and glacial acetic acid may be used. Preferably, hydrochloric acid can be used.
본 발명의 제1 단계에서, 수산화바륨8수화물(Barium hydroxide octahydrate)인 Ba(OH)2·8H2O을 5 내지 15중량부를 혼합하여, 15분 내지 30분, 더욱 바람직하게는 20분 교반하는 것이 바람직하다. 상기 범위 내에서 발포체의 불연성 질량 감소율 특성 및 열전도율 특성이 우수하다. 또한, 본 발명의 제1 단계에서, 수산화바륨8수화물 10중량부에 대하여 스테아린산바륨 1 내지 3중량부를 더욱 혼합하여, 발포체의 유연성과 함께 불연성 질량 감소율 특성 및 열전도율 특성은 향상될 수 있다.In the first step of the present invention, 5 to 15 parts by weight of Ba(OH) 2 8H 2 O, which is barium hydroxide octahydrate, is mixed and stirred for 15 to 30 minutes, more preferably 20 minutes. it is desirable Within the above range, the incombustible mass reduction rate characteristics and thermal conductivity characteristics of the foam are excellent. In addition, in the first step of the present invention, by further mixing 1 to 3 parts by weight of barium stearate with respect to 10 parts by weight of barium hydroxide octahydrate, the flexibility of the foam, as well as the incombustible mass reduction characteristics and thermal conductivity characteristics can be improved.
본 발명의 제1 단계에서, 추가적으로 액상 규산나트륨을 10 내지 50중량부를 혼합할수 있다. In the first step of the present invention, 10 to 50 parts by weight of liquid sodium silicate may be additionally mixed.
본 발명의 제2 단계에서, 상기 제1 단계의 혼합물에 수산화알루미늄(Aluminium hydroxide), 구리수산화물(Copper hydroxide), 마그네슘수산화물(Magnesium hydroxide) 중 1종 또는 2종 혼합물을 5 내지 15중량부를 혼합하여 15분 내지 30분 동안 교반할 수 있다. 수산화알루미늄, 구리수산화물, 마그네슘수산화물은 상기 제1 단계의 혼합물에 남아있는 산(acid)을 중화시키는 역할을 한다. 또한, 상기 범위 내에서 혼합물의 윤활 특성을 향상시켜준다. 제1 단계에서 수산화바륨8수화물과 함께 수산화알루미늄, 구리수산화물, 마그네슘수산화물을 혼합하게 되면, 반응 도중에 산이 중화되어 버리기 때문에 제1 단계 후에 수산화알루미늄, 구리수산화물, 마그네슘수산화물을 주입하고 교반하는 것이 바람직하다. In the second step of the present invention, 5 to 15 parts by weight of one or two mixtures of aluminum hydroxide, copper hydroxide, and magnesium hydroxide are mixed with the mixture of the first step, Stirring can be done for 15 to 30 minutes. Aluminum hydroxide, copper hydroxide, and magnesium hydroxide serve to neutralize the acid remaining in the mixture in the first step. In addition, it improves the lubricating properties of the mixture within the above range. When aluminum hydroxide, copper hydroxide, and magnesium hydroxide are mixed with barium hydroxide octahydrate in the first step, the acid is neutralized during the reaction, so it is preferable to inject and stir aluminum hydroxide, copper hydroxide, and magnesium hydroxide after the first step. .
본 발명의 제3 단계에서, 상기 제2 단계의 혼합물에 산화아연(Zinc Oxide), 산화알루미늄(Aluminum oxide) 중 1종 또는 2종 혼합물을 1 내지 10중량부를 혼합하여 15분 내지 30분 동안 교반할 수 있다. 이는 상기 범위 내에서 제조된 발포체의 열팽창 계수를 낮춰주고 산화를 방지한다. 본 발명에서는 산화아연, 산화알루미늄 분말의 표면에 니켈을 코팅하여 사용하면 발포체의 열팽창 계수를 더욱 낮추어 주는 효과가 있다. In the third step of the present invention, 1 to 10 parts by weight of one or a mixture of two of zinc oxide and aluminum oxide is mixed with the mixture of the second step and stirred for 15 to 30 minutes. can do. This lowers the thermal expansion coefficient of the foam prepared within the above range and prevents oxidation. In the present invention, when nickel is coated on the surface of the zinc oxide or aluminum oxide powder, the thermal expansion coefficient of the foam is further lowered.
본 발명의 제4 단계에서, 상기 제3 단계의 혼합물에 삼산화붕소(Boric anhydride)를 2 내지 12중량부를 혼합하여 15분 내지 30분 동안 교반할 수 있다. 상기 범위 내에서 제조된 단열재의 내수성을 향상시킬 수 있다. In the fourth step of the present invention, 2 to 12 parts by weight of boric anhydride may be mixed with the mixture of the third step and stirred for 15 to 30 minutes. It is possible to improve the water resistance of the insulator manufactured within the above range.
상기 제4 단계에서 염화리튬(Lithium chloride) 1 내지 3중량부, 황산염(Ammonium sulfate) 1 내지 3중량부를 추가로 혼합하여 교반할 수 있다. 염화리튬을 사용하여 삼산화붕소의 반응에 대한 촉매 역할을 할 수 있고, 황산염, 보다 바람직하게는 아민계 황산염인 N,N-디에틸-p-페닐렌디아민설페이트염(N,N-Diethyl-p-phenylenediamine sulfate salt)을 사용하여 치수 안정성은 보다 향상될 수 있다. In the fourth step, 1 to 3 parts by weight of lithium chloride and 1 to 3 parts by weight of sulfate (Ammonium sulfate) may be further mixed and stirred. Lithium chloride can be used as a catalyst for the reaction of boron trioxide, and sulfates, more preferably amine sulfates, N,N-diethyl-p-phenylenediamine sulfate salt (N,N-Diethyl-p -phenylenediamine sulfate salt) can be used to further improve the dimensional stability.
상기 제4 단계의 교반 후의 혼합물의 점도는 600cps 내지 1,000cps, 더욱 바람직하게는 600cps 내지 700cps인 것이 바람직하다. 상기 범위 내에서 단열재의 성형 특성은 우수하다. The viscosity of the mixture after stirring in the fourth step is preferably 600cps to 1,000cps, more preferably 600cps to 700cps. Within the above range, the molding properties of the heat insulating material are excellent.
본 발명의 제5 단계에서, 상기 제4 단계의 혼합물을 금형에 투입하고 가열하여 건조할 수 있다. 가열하는 공정은 마이크로웨이브를 바람직하게 사용할 수 있다. In the fifth step of the present invention, the mixture of the fourth step may be put into a mold and heated and dried. The heating process may preferably use microwaves.
상기 제5 단계에 의하여 제조된 불연 발포 단열재의 수분 흡수율은 30중량% 내지 40중량%, 불연성 질량 감소율은 11중량% 내지 13중량%, 열전도율은 0.03wmK 내지 0.07wmK, 연소가스에 대한 쥐행동정지시간은 14분 내지 15분, 가로 치수 안정성은 0.1 내지 0.13부피%, 세로 치수 안정성은 0.1 내지 0.12부피%를 가질 수 있다. The moisture absorption rate of the incombustible foam insulation prepared in the fifth step is 30% to 40% by weight, the incombustible mass reduction rate is 11% to 13% by weight, the thermal conductivity is 0.03wmK to 0.07wmK, and the rat behavior for combustion gas is stopped. The time may be 14 minutes to 15 minutes, the lateral dimensional stability may have 0.1 to 0.13 vol%, and the longitudinal dimensional stability may have 0.1 to 0.12 vol%.
본 발명의 제1 단계에서 액상 알카리 실리케이트 및 산(acid)을 포함하는 혼합물에는 반응억제제 0.3 내지 0.5중량부를 추가로 혼합할 수 있다. 반응 억제제로서 하기 화학식 1 내지 4의 어느 하나의 화합물 또는 2종 이상의 화합물을 혼합하여 사용할 수 있다. 예를 들어, 반응 억제제는 화학식 1 내지 3의 화합물의 적어도 어느 하나의 화합물과 화학식 4의 화합물의 혼합물을 중량비로 1:0.1 내지 0.3의 비율, 바람직하게는 화학식 1 내지 4의 화합물의 중량비 0.3:0.3:0.4:0.1 내지 0.3의 비율로 사용할 수 있으며, 상기 범위의 반응 억제제를 사용함으로써, 액상 알카리 실리케이트 및 산(acid)이 급격하게 반응하는 것을 방지할 수 있다. In the first step of the present invention, 0.3 to 0.5 parts by weight of a reaction inhibitor may be further mixed with the mixture containing the liquid alkali silicate and the acid. As a reaction inhibitor, any one compound or a mixture of two or more compounds represented by the following formulas 1 to 4 may be used. For example, the reaction inhibitor is a mixture of at least one of the compounds of Formulas 1 to 3 and the compound of Formula 4 in a weight ratio of 1:0.1 to 0.3, preferably a weight ratio of the compounds of Formulas 1 to 4 of 0.3: It can be used in a ratio of 0.3:0.4:0.1 to 0.3, and by using a reaction inhibitor in the above range, it is possible to prevent a rapid reaction between liquid alkali silicate and acid.
[화학식 1] [화학식 2] [화학식 3] [Formula 1] [Formula 2] [Formula 3]
[화학식 4][Formula 4]
(실험예)(experimental example)
(실시예 1) (Example 1)
교반용기에 내수성 무기수지 100 중량부를 교반하고, 수산화바륨8수화물(Barium hydroxide octahydrate) 8 중량부를 투입하여서 20분 교반하고, 수산화알루미늄(Aluminium hydroxide) 9 중량부 투입하여 20분 교반하고, 산화아연(Zinc oxide) 3 중량부 교반하여 교반속도 300rpm으로 40℃에서 삼산화붕소(Boric anhydride) 4 중량부 투입 후 교반하여 점도 600cps이상 되었을 때 15분간 건조 발포하여 발포체를 생산하였다. 발포체의 특성을 조사한 결과, 흡수율 : 32.2%, 불연성질량 감소율 : 11.05％，열전도율 : 0.061wmk, 연소가스(쥐행동정지시간)： 14분20초, 치수안정성： 가로 0.13％、세로 0.12%를 얻었다. 100 parts by weight of a water-resistant inorganic resin was stirred in a stirring container, 8 parts by weight of barium hydroxide octahydrate was added and stirred for 20 minutes, 9 parts by weight of aluminum hydroxide was added and stirred for 20 minutes, and zinc oxide ( 3 parts by weight of Zinc oxide) was stirred and 4 parts by weight of boric anhydride was added at 40° C. at an stirring speed of 300 rpm, followed by stirring to produce a foam by drying and foaming for 15 minutes when the viscosity reached 600 cps or more. As a result of investigating the characteristics of the foam, water absorption rate: 32.2%, incombustible mass reduction rate: 11.05%, thermal conductivity: 0.061wmk, combustion gas (mouse action stop time): 14 minutes 20 seconds, dimensional stability: width 0.13%, length 0.12% were obtained. .
(실시예 2) (Example 2)
교반용기에 내수성 무기수지 80 중량부 투입후 수산화바륨8수화물(Barium hydroxide octahydrate) 10 중량부를 투입하고 20분간 교반한 후에 수산화알루미늄(Aluminium hydroxide) 9 중량부 투입하고 20분간 교반한 후에 산화아연(Zinc oxide) 3 중량부 투입한 후 교반하면서 40℃에서 삼산화붕소(Boric anhydride) 4 중량부 투입 후 교반하여 점도 600cps이상 되었을 때 건조 발포하여 발포체를 생산하였다. 발포체의 특성을 조사한 결과, 흡수율 : 39.3 %, 불연성질량 감소율 : 11.3％，열전도율 : 0.065wmk, 연소가스(쥐행동정지시간)： 14분20초, 치수안정성： 가로 0.12％、세로 0.12%를 얻었다. After adding 80 parts by weight of a water-resistant inorganic resin to the stirring container, 10 parts by weight of barium hydroxide octahydrate was added and stirred for 20 minutes, then 9 parts by weight of aluminum hydroxide was added and stirred for 20 minutes, followed by zinc oxide (Zinc Oxide). oxide), 4 parts by weight of boric anhydride was added at 40 ° C. while stirring, and then dried and foamed when the viscosity reached 600 cps or more. As a result of examining the properties of the foam, water absorption rate: 39.3%, incombustible mass reduction rate: 11.3%, thermal conductivity: 0.065 wmk, combustion gas (mouse action stop time): 14 minutes and 20 seconds, dimensional stability: width 0.12%, length 0.12% were obtained. .
(실시예 3) (Example 3)
교반기에 내수성 무기수지 100 중량부, 수산화바륨8수화물(Barium hydroxide octahydrate) 5 중량부를 투입 후 교반하여 수산화알루미늄(Aluminium hydroxide) 9 중량부 투입하고 20분간 교반한 후에 산화아연(Zinc oxide) 3 중량부 투입한 후 20분간 교반한 후에 삼산화붕소(Boric anhydride) 4 중량부 투입 후 교반하여 점도 600cps이상 되었을 때 건조 발포하여 발포체를 생산하였다. 발포체의 특성을 조사한 결과, 흡수율 : 33.5 %, 불연성질량 감소율 : 11.2％，열전도율 : 0.045wmk, 연소가스(쥐행동정지시간)： 14분18초, 치수안정성： 가로 0.12％、세로 0.1%를 얻었다. After putting 100 parts by weight of water-resistant inorganic resin and 5 parts by weight of barium hydroxide octahydrate in a stirrer, add 9 parts by weight of aluminum hydroxide by stirring, stir for 20 minutes, and then add 3 parts by weight of zinc oxide. After adding and stirring for 20 minutes, 4 parts by weight of boric anhydride was added and stirred to produce a foam by drying and foaming when the viscosity reached 600 cps or more. As a result of examining the characteristics of the foam, water absorption rate: 33.5%, incombustible mass reduction rate: 11.2%, thermal conductivity: 0.045 wmk, combustion gas (mouse action stop time): 14 minutes and 18 seconds, dimensional stability: width 0.12%, length 0.1% were obtained. .
(실시예 4) (Example 4)
교반기에 내수성 무기수지 50 중량부 투입 후 교반하면서 수산화바륨8수화물(Barium hydroxide octahydrate) 10 중량부를 투입하고 20분간 교반 후 수산화알루미늄(Aluminium hydroxide) 8 중량부 투입하고 20분간 교반한 후에 산화아연(Zinc oxide) 3 중량부 투입한 후 40℃에서 삼산화붕소(Boric anhydride) 4 중량부 투입 후 점도 600cps이상 되었을 때 15분간 건조하여 발포체를 생산하였다. 발포체의 특성을 조사한 결과, 흡수율 : 41.2 %, 불연성질량 감소율 : 11.5％，열전도율 : 0.067wmk, 연소가스(쥐행동정지시간)： 14분40초, 치수안정성： 가로 0.1％、세로 0.1%를 얻었다. After adding 50 parts by weight of water-resistant inorganic resin to the stirrer, 10 parts by weight of barium hydroxide octahydrate was added while stirring, stirred for 20 minutes, then 8 parts by weight of aluminum hydroxide was added, stirred for 20 minutes, and then zinc oxide (Zinc Oxide) was added. After adding 3 parts by weight of oxide) and adding 4 parts by weight of boric anhydride at 40 ° C., when the viscosity reached 600 cps or more, it was dried for 15 minutes to produce a foam. As a result of examining the characteristics of the foam, water absorption rate: 41.2%, incombustible mass reduction rate: 11.5%, thermal conductivity: 0.067wmk, combustion gas (mouse action stop time): 14 minutes 40 seconds, dimensional stability: width 0.1%, length 0.1% were obtained. .
(실시예 5) (Example 5)
교반기에 내수성 무기수지 100 중량부, 수산화바륨8수화물(Barium hydroxide octahydrate) 8 중량부를 투입 교반한 후에 수산화알루미늄(Aluminium hydroxide) 5 중량부 투입하고 20분간 교반한 후에 산화알루미늄(Aluminum oxide) 3 중량부 투입한 후 20분간 교반한 후에 40℃에서 삼산화붕소(Boric anhydride) 4 중량부 투입 후 점도 600cps이상 되었을 때 건조 발포하여 발포체를 생산하였다. 발포체의 특성을 조사한 결과, 흡수율 : 31.5 %, 불연성질량 감소율 : 11.3％，열전도율 : 0.043wmk, 연소가스(쥐행동정지시간)： 14분30초, 치수안정성： 가로 0.13％、세로 0.12%를 얻었다. 100 parts by weight of water-resistant inorganic resin and 8 parts by weight of barium hydroxide octahydrate were added to the stirrer, and after stirring, 5 parts by weight of aluminum hydroxide was added, and after stirring for 20 minutes, 3 parts by weight of aluminum oxide After stirring for 20 minutes after addition, 4 parts by weight of boric anhydride was added at 40 ° C., and then dry foaming was performed when the viscosity reached 600 cps or more to produce a foam. As a result of examining the characteristics of the foam, water absorption rate: 31.5%, incombustible mass reduction rate: 11.3%, thermal conductivity: 0.043wmk, combustion gas (mouse action stop time): 14 minutes 30 seconds, dimensional stability: width 0.13%, length 0.12% were obtained. .
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본 발명의 흡수율은 KS L 5114(섬유강화 시멘트판)에 의하여 진행되었고, 불연성질량 감소율은 KS F ISO 1182 불연성 실험에 의하여 진행되었고, 열전도율은 KS L 9016에 의하여 진행되었고, 연소가스(쥐행동정지시간)는 한국산업규격 KS F 2271 중 가스유해성 시험에 의하여 진행되었고 치수안정성은 KS M ISO 4898에 의하여 진행되었다. The absorption rate of the present invention was conducted according to KS L 5114 (fiber-reinforced cement board), the incombustible mass reduction rate was conducted according to KS F ISO 1182 incombustibility test, the thermal conductivity was conducted according to KS L 9016, and the combustion gas (mouse behavior stop time) was conducted by the gas toxicity test in Korean Industrial Standards KS F 2271, and dimensional stability was conducted by KS M ISO 4898.
하기 표 1은 실시예 1 내지 5의 결과를 나타낸다.
(중량%)
(중량%)
(wmK)
(쥐행동
정지시간)
가로
(부피%)
세로
(부피%)
표 1에 나타난 바와 같이, 내수성 무기수지에 수산화바륨수화물, 수산화알루미늄, 삼산화붕소를 혼합하여 교반함으로써 흡수율, 불연성질량 감소율, 열전도율, 연소가스(쥐행동정지시간), 치수안정성에서 우수한 효과가 있음을 확인하였다. Table 1 below shows the results of Examples 1 to 5.
(weight%)
(weight%)
(wmK)
(Rat behavior
stop time)
width
(volume%)
length
(volume%)
As shown in Table 1, it was found that the water-resistant inorganic resin was mixed with barium hydroxide hydrate, aluminum hydroxide, and boron trioxide and stirred to have excellent effects in water absorption, incombustible mass reduction rate, thermal conductivity, combustion gas (mouse action stop time), and dimensional stability. Confirmed.
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(비교예 1)(Comparative Example 1)
실시예 1에서 수산화알루미늄을 수산화바륨8수화물(Barium hydroxide octahydrate)과 함께 투입하여 교반하는 것을 제외하면 비교예 1의 발포체의 제조 공정은 실시예 1과 동일하다. 발포체의 특성을 조사한 결과, 흡수율 : 39.7 %, 불연성질량 감소율 : 13.5％，열전도율 : 0.027wmk, 연소가스(쥐행동정지시간)： 14분10초, 치수안정성： 가로 0.13％、세로 0.13%를 얻었다. 즉, 수산화알루미늄을 제1 단계에 주입하게 되어 반응 도중 산이 중화되어 불연성질량 감소율이나 열전도율 특성이 저하된다. The manufacturing process of the foam of Comparative Example 1 is the same as Example 1, except that in Example 1, aluminum hydroxide was added together with barium hydroxide octahydrate and stirred. As a result of examining the characteristics of the foam, water absorption rate: 39.7%, incombustible mass reduction rate: 13.5%, thermal conductivity: 0.027wmk, combustion gas (mouse action stop time): 14 minutes 10 seconds, dimensional stability: width 0.13%, length 0.13% were obtained. . That is, since aluminum hydroxide is injected in the first step, the acid is neutralized during the reaction, and the incombustible mass reduction rate or thermal conductivity characteristics are lowered.
본 발명은 상기 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 제조될 수 있으며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.The present invention is not limited to the above embodiments, but can be manufactured in a variety of different forms, and those skilled in the art to which the present invention pertains may take other specific forms without changing the technical spirit or essential features of the present invention. It will be understood that it can be implemented as. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.
Claims (5)
상기 제1 단계의 혼합물에 수산화알루미늄(Aluminium hydroxide), 구리수산화물(Copper hydroxide), 마그네슘수산화물(Magnesium hydroxide) 중 1종 또는 2종 혼합물을 5 내지 15중량부를 혼합하여 15분 내지 30분 동안 교반하는 제2 단계;
상기 제2 단계의 혼합물에 산화아연(Zinc Oxide), 산화알루미늄(Aluminum oxide) 중 1종 또는 2종 혼합물을 1 내지 10중량부를 혼합하여 15분 내지 30분 동안 교반하는 제3 단계;
상기 제3 단계의 혼합물에 삼산화붕소(Boric anhydride)를 2 내지 12중량부를 혼합하여 15분 내지 30분 동안 교반하는 제4 단계; 및
상기 제4 단계의 혼합물을 금형에 투입하고 15분 내지 30분 동안 가열하여 건조하는 제5 단계;를 포함하는 내수성 무기수지를 함유하는 불연 발포체의 제조방법.A first step of mixing 5 to 15 parts by weight of barium hydroxide octahydrate with 100 parts by weight of a water-resistant inorganic resin and stirring for 15 to 30 minutes;
Mixing 5 to 15 parts by weight of one or two mixtures of aluminum hydroxide, copper hydroxide, and magnesium hydroxide with the mixture in the first step and stirring for 15 to 30 minutes second step;
A third step of mixing 1 to 10 parts by weight of one or a mixture of two of zinc oxide and aluminum oxide with the mixture of the second step and stirring for 15 to 30 minutes;
A fourth step of mixing 2 to 12 parts by weight of boric anhydride with the mixture of the third step and stirring for 15 to 30 minutes; and
A method for producing a nonflammable foam containing a water-resistant inorganic resin comprising a fifth step of putting the mixture of the fourth step into a mold and heating and drying the mixture for 15 to 30 minutes.
상기 제5 단계에의 가열 및 건조는 마이크로웨이브에 의하여 행해지며, 상기 제5 단계에 의하여 제조된 불연 발포체의 수분 흡수율(KS L 5114 기준)은 30중량% 내지 40중량%, 불연성 질량 감소율은 11중량% 내지 13중량%, 열전도율은 0.03wmK 내지 0.07wmK, 연소가스에 대한 쥐행동정지시간은 14분 내지 15분, 가로 치수 안정성은 0.1 내지 0.13부피%, 세로 치수 안정성은 0.1 내지 0.12부피%인 것을 특징으로 하는 불연 발포체의 제조방법.The method of claim 1,
The heating and drying in the fifth step is performed by microwave, and the water absorption rate (KS L 5114 standard) of the incombustible foam prepared in the fifth step is 30% to 40% by weight, and the incombustible mass reduction rate is 11 weight% to 13% by weight, thermal conductivity of 0.03wmK to 0.07wmK, mouse action suspension time for combustion gas is 14 to 15 minutes, lateral dimensional stability is 0.1 to 0.13% by volume, and longitudinal dimensional stability is 0.1 to 0.12% by volume. Method for producing an incombustible foam, characterized in that.
상기 제4 단계에서 염화리튬(Lithium chloride) 1 내지 3중량부, 황산염(sulfate) 1 내지 3중량부를 추가로 혼합하여 교반하며, 상기 제4 단계의 교반 후의 혼합물의 점도는 600cps 내지 1,000cps인 것을 특징으로 하는 내수성 무기수지를 함유하는 불연 발포체의 제조방법.The method of claim 1,
In the fourth step, 1 to 3 parts by weight of lithium chloride and 1 to 3 parts by weight of sulfate are further mixed and stirred, and the viscosity of the mixture after stirring in the fourth step is 600cps to 1,000cps. A method for producing a nonflammable foam containing a water-resistant inorganic resin.
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| KR101249941B1 (en) | 2008-10-01 | 2013-04-09 | 원승재 | Water-resisting and eco-friendly inorganic resin |
| KR101236553B1 (en) | 2012-05-02 | 2013-02-22 | 주식회사 온새미 | Method for manufacturing foam insulation having a function of resistance to flame |
| KR101964913B1 (en) | 2018-09-12 | 2019-04-02 | 신백범 | Composite insulation using board-type foam insulation and a closed air layer |
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