KR900000034B1 - Heat resistant stove cement composition - Google Patents
Heat resistant stove cement composition Download PDFInfo
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- KR900000034B1 KR900000034B1 KR1019870015460A KR870015460A KR900000034B1 KR 900000034 B1 KR900000034 B1 KR 900000034B1 KR 1019870015460 A KR1019870015460 A KR 1019870015460A KR 870015460 A KR870015460 A KR 870015460A KR 900000034 B1 KR900000034 B1 KR 900000034B1
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- hydroxide
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- cement composition
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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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
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- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Ceramic Products (AREA)
Abstract
Description
본 발명은 열사용기자재의 금속 또는 세라믹소자에 일정두께로 도포하여 내화 및 소지보호를 위하여 사용하는 페이스트상의 스토브 시멘트 조성물에 관한 것이다.The present invention relates to a paste-like stove cement composition which is applied to a metal or ceramic element of a heat-use material to a certain thickness to be used for fire resistance and base material protection.
특히 금속실리케이트(metal silicate)를 주바인더로 하여 무기질 산화물, 크랙방지제등을 배합하여 단열성을 나타내는 조성물에 내열성을 상승시키고, 내구력을 증감시킬 수 있는 금속수산화물을 함유한 내열성 스토브 시멘트 조성물에 관한 것이다.In particular, the present invention relates to a heat-resistant stove cement composition containing a metal hydroxide capable of increasing heat resistance and increasing durability by incorporating an inorganic oxide, an anti-cracking agent, or the like as a main binder, with a metal silicate as a main binder.
기존에는 내화, 단열을 위하여 점토, 알루미나시멘트, 무기질 등을 상용하였으나 근래에는 높은 온도에서도 크랙발생이나 점착력불량으로 탈락되지 않는 특성의 재료가 요구되었다.Conventionally, clay, alumina cement, and minerals were commonly used for fire resistance and insulation, but recently, a material having a characteristic of not falling off due to cracking or poor adhesion at high temperatures has been required.
본 발명의 주바인더인 액상의 금속실리케이트를 사용하여 기타 무기질산화물과 함께 배합하여 피복부위에 일정두께(통상 1-3cm)로 피복하여 방화성능을 발휘케하는 기술이 공개되어 있는데 부정형의 방화제로서 미국 특허 3493401호에서는 주바인더로 포타슘실리케이트를 사용하고 내수성 증진재로 세륨산화물과 알킬트리 알콕시실란을 첨가하고, Wollastonite을 사용하였으며, 또한 미국 특허 3442671호에서는 주바인더로 포타슘 실리케이트를 사용하고 마그네슘 알루미늄 실리케이트를 분산재로, 알카린 수용염(alkaline solublesalt)과 마이카(mica)를 배합하여 높은 온도에서도 내열성을 발현할 수 있는 방화피복재를 개발하여 사용하고 있으나 이는 건축의 철골재에 피복하여 방화성능을 나타내는 기술로 본 발명의 스토브시멘트가 열사용 기자재에 소지보호를 목적으로 사용되는 것과는 사용목적이 다르다.The technique of using a liquid metal silicate, which is the main binder of the present invention, is mixed with other inorganic oxides and coated on the coating part with a certain thickness (usually 1-3 cm) to exhibit fire protection performance. Patent 3493401 uses potassium silicate as a main binder, cerium oxide and alkyltrialkoxysilane as a water resistance enhancer, Wollastonite is used, and US patent 3442671 uses potassium silicate as a main binder and magnesium aluminum silicate. As a dispersing material, it has developed and used fire-proof coating material that can express heat resistance even at high temperature by mixing alkaline soluble salt and mica. Stove cement of the present invention to protect the possession of heat The purpose different from that ever used.
그러나, 이들 조성물은 고열에 방치되면 금속실리케이트가 단열, 방화성능을 나타내나 그 효과가 충분치 못하여 높은 온도에까지 안정된 방화성을 보여주지 못하였다.However, these compositions, when left at high heat, the metal silicate exhibits thermal insulation and fire protection, but the effect is not sufficient, and thus, it does not show stable fire resistance even at high temperatures.
스토브시멘트는 고온에서도 내열성, 단열성을 갖도록 하여 화염등의 열이 직접 전달되는 부위에 일정두께로 도포하여 소지를 보호하는 목적으로 사용하는 것이다.Stove cement is to be used for the purpose of protecting the body by applying a certain thickness to the heat transfer, such as flame directly to have heat resistance and heat insulation at high temperatures.
본 발명에서는 금속실리케이트를 스토브시멘트 주성분(주바인더)으로 하여 무기질산화물, 크랙방지재를 배합사용하면서, 내열성을 상승시키고, 높은 온도에서도 내구력을 갖는 금속수산화물을 함께 배합하여 새로운 비발포성의 스토브시멘트 조성물을 제조함을 목적으로 한다.In the present invention, using a metal silicate as the main component of the stove cement (main binder), the inorganic oxide and the crack prevention material are used in combination to increase the heat resistance, and to mix the metal hydroxide having the durability at high temperature, thereby adding a new non-foamable stove cement composition. To prepare for.
본 발명에 사용되는 금속 수산화물은 수산화망간-Mn(OH)2수산화 마그네슘-Mg(OH)2, 수산화바륨-Ba(OH)2, 수산화납-Pb(OH)2, 수산화칼슘-Ca(OH)2,수산화알루미늄-Al(OH)3등이 적당하다.The metal hydroxides used in the present invention are manganese hydroxide-Mn (OH) 2 magnesium hydroxide-Mg (OH) 2 , barium hydroxide-Ba (OH) 2 , lead hydroxide-Pb (OH) 2 , calcium hydroxide-Ca (OH) 2 , Aluminum hydroxide-Al (OH) 3 and the like are suitable.
본 발명의 금속 수산화물은 금속원자와 수산기(OH) 혹은 H2O의 분자가 결합되어 있는 형태로 승온시(약 150-250℃부위에서), 주바인더인 금속염과 화학적 결합을 하게되어 금속원자에 의한 내열성능을 극히 높게 발현함을 특징으로 한다.The metal hydroxide of the present invention has a chemical bond with a metal salt which is a main binder when the temperature is elevated (at a temperature of about 150-250 ° C.) in a form in which a metal atom and a hydroxyl group (OH) or a molecule of H 2 O are combined. It is characterized by expressing extremely high heat resistance.
즉, 금속수산화물은 고온에 접하게되면 탈수에 의한 중합반응에 의하여 화학적 결합이 이뤄지고, 금속염이 기존의 스토브시멘트 조성물에서는 발포하는데 반하여 발포되지 않고 금속원자간 결합이 강하게 유지되는데, 그 이유는 금속원자와 산소원자간 이온결합이 형성되어 내열안정성의 금속산화물처럼 높은 내열성을 발현하고, 이 결합에 의한 결합재가 높은 온도에서도 내구력을 나타나게 된다.That is, when the metal hydroxide is in contact with a high temperature, the chemical bond is formed by a polymerization reaction by dehydration, and the metal salt is not foamed in the conventional stove cement composition, but the bond between the metal atoms is maintained strongly because the metal atoms and Ionic bonds are formed between the oxygen atoms to express high heat resistance like metal oxides of heat stability, and the binding material exhibits durability even at high temperatures.
본 발명의 금속수산화물을 주바인더인 금속실리케이트에 대하여 1-20중량부 사용한다.The metal hydroxide of this invention is used 1-20 weight part with respect to the metal silicate which is a main binder.
본 발명의 주바인더로 사용될 수 있는 금속실리케이트는 나트륨(Na), 리튬(Li), 칼륨(K)의 실리케이트(xM2O·ySiO2·ZH2O·Metal)용액으로서 단독 혹은 2종이상 혼합하여서 100부 사용한다.The metal silicate which can be used as the main binder of the present invention is a silicate (xM 2 O ySiO 2 ZH 2 O Metal) solution of sodium (Na), lithium (Li), and potassium (K) alone or in combination of two or more thereof. 100 parts are used.
크랙방지제로는 판상 혹은 섬유상의 물질이 6-25부 사용되는데 판상의 경우 마이카(mica), 탈크(talc), 알루미늄실리케이트가 사용가능하고 섬유상의 경우 무기질의 위스커(Whisker), 울(Wool), 화이버(Fiber)를 단독 혹은 2종이상 혼합 사용할 수 있다.6-25 parts of plate or fibrous material are used as the crack preventing agent. In case of plate, mica, talc, aluminum silicate can be used, and in the case of fiber, inorganic whisker, wool, Fiber can be used alone or in combination of two or more.
점도조절 및 내열성증진, 강도증진을 위하여 무기질 산화물을 충진재로 배합사용하고 구체적으로 실리카(SiO2), 알루미나, 지르코니아등의 산화물을 전체조성물에 30중량% 이하 사용한다.In order to control viscosity, increase heat resistance and increase strength, inorganic oxide is used as a filler, and in particular, an oxide such as silica (SiO 2 ), alumina, zirconia, etc. is used in the total composition of 30 wt% or less.
본 발명의 내열성 스토브시멘트 조성물은 소량의 물에 반죽하여 페이스트(Paste)상으로 하여 사용하는데 본 발명에서는 내열성 시험을 위하여 다음의 실시예와 비교예와 같이 제조하여 성능을 비교평가 하였다.The heat resistant stove cement composition of the present invention is used as a paste by kneading in a small amount of water. In the present invention, a heat resistance test was made as in the following Examples and Comparative Examples to evaluate the performance.
[실시예 1]Example 1
나트륨 실리케이트 70부,70 parts of sodium silicate,
칼륨 실리케이트 30부,30 parts of potassium silicate,
알루미늄 실리케이트 10부,10 parts of aluminum silicate,
포타슘 티타네이트 10부,10 parts of potassium titanate,
실리카 20부 및 수산화알루미늄-Al(OH)3, 5부를 상온에서 혼합하여 페이스트상의 스토브 시멘트를 제조하였다. 시편(가로 6.5cm× 가로 10cm×1cm)을 제조하여 완전 건조시켰다.A paste-like stove cement was prepared by mixing 20 parts of silica and 3 parts and 5 parts of aluminum hydroxide-Al (OH) at room temperature. Specimens (6.5 cm x 10 cm x 1 cm) were prepared and completely dried.
[실시예 2]Example 2
나트륨 실리케이트 50부,50 parts of sodium silicate,
칼륨 실리케이트 30부,30 parts of potassium silicate,
리튬 실리케이트 20부,20 parts of lithium silicate,
탈크 15부,15 talc,
세라믹 섬유 7부,7 parts of ceramic fiber,
알루미나 20부,20 parts of alumina,
Al(OH)315부,15 parts of Al (OH) 3 ,
을 실시예 1과 같은 방법으로 시편을 제조하였다.To prepare a specimen in the same manner as in Example 1.
[실시예 3]Example 3
나트륨 실리케이트 50부,50 parts of sodium silicate,
포타슘 실리케이트 30부,30 parts of potassium silicate,
리튬 실리케이트 20부,20 parts of lithium silicate,
탈크 15부,15 talc,
세라믹 섬유 7부,7 parts of ceramic fiber,
알루미나 20부,20 parts of alumina,
Al(OH)315부,15 parts of Al (OH) 3 ,
을 실시예 1과 같은 방법으로 시편을 제조하였다.To prepare a specimen in the same manner as in Example 1.
[비교예][Comparative Example]
나트륨 실리케이트 50부,50 parts of sodium silicate,
포타슘 실리케이트 30부,30 parts of potassium silicate,
리튬 실리케이트 20부,20 parts of lithium silicate,
탈크 15부,15 talc,
세라믹 섬유 7부,7 parts of ceramic fiber,
알루미나 20부,20 parts of alumina,
을 실시예 1과 같은 방법으로 시편을 제조하였다.To prepare a specimen in the same manner as in Example 1.
상기의 실시예와 비교예의 시편을 내열성 시험코자 전기로에서 내화물에 도포한 시편을 승온하여 스토브시멘트의 내열온도를 측정 비교하였다.The heat resistance temperature of the stove cement was measured and compared by heating up the test piece coated with the refractory body in the above example and the comparative example in the heat resistance tester electric furnace.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019870015460A KR900000034B1 (en) | 1987-12-30 | 1987-12-30 | Heat resistant stove cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019870015460A KR900000034B1 (en) | 1987-12-30 | 1987-12-30 | Heat resistant stove cement composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890009794A KR890009794A (en) | 1989-08-04 |
| KR900000034B1 true KR900000034B1 (en) | 1990-01-18 |
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ID=19267734
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019870015460A Expired KR900000034B1 (en) | 1987-12-30 | 1987-12-30 | Heat resistant stove cement composition |
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| Country | Link |
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| KR (1) | KR900000034B1 (en) |
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1987
- 1987-12-30 KR KR1019870015460A patent/KR900000034B1/en not_active Expired
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| Publication number | Publication date |
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| KR890009794A (en) | 1989-08-04 |
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