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KR100864784B1 - The composition of adiabatic material and sound absorption - Google Patents

The composition of adiabatic material and sound absorption Download PDF

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Publication number
KR100864784B1
KR100864784B1 KR1020070067805A KR20070067805A KR100864784B1 KR 100864784 B1 KR100864784 B1 KR 100864784B1 KR 1020070067805 A KR1020070067805 A KR 1020070067805A KR 20070067805 A KR20070067805 A KR 20070067805A KR 100864784 B1 KR100864784 B1 KR 100864784B1
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weight
composition
powder
adiabatic
absorbent polymer
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이재환
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이재환
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C04B14/064—Silica aerogel
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • C04B14/062—Microsilica, e.g. colloïdal silica
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/08—Diatomaceous earth
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/26—Carbonates
    • C04B14/28—Carbonates of calcium
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/46—Rock wool ; Ceramic or silicate fibres
    • C04B14/4687—Non-oxide ceramics
    • C04B14/4693—Silicon carbide
    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/06—Macromolecular compounds fibrous
    • C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B16/0641—Polyvinylalcohols; Polyvinylacetates
    • 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
    • C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88—Insulating elements for both heat and sound
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Dispersion Chemistry (AREA)
  • Electromagnetism (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A powder composition of adiabatic and soundproof material is provided to obtain high compatibility with other adiabatic and soundproof products by making a composition of silica aerogel, of which strength is enhanced in a process that vulcanizes a mixture of raw material comprising silica aerogel and dries the mixture for grinding into powder type. A powder composition of adiabatic and soundproof material comprises: 20-25% by weight of diatomite, 15-20% by weight of calcium carbonate, 5-8% by weight of magnesium carbonate, 2-4% by weight of CSA expander, 25-30% by weight of micro-cement, 5-18% by weight of silica aerogel powder, 1-3% by weight of micro-silica, 2-5% by weight of at least one selected from polyacrylic absorbent polymer powder and sodium polyacrylate absorbent polymer fiber, 0.5-3% by weight of at least one selected from PVA fiber and silicon carbonate fiber and 0.3-1% by weight of sodium gliconate. The composition is mixed with 0.25-0.4 parts by weight of water with respect to the total weight of the raw material, and the mixture is stirred with a stirrer for at most 5 minutes before molding. The molded article is ground and the ground powder is mixed with the other adiabatic and soundproof products in the amount of at most 30%.

Description

단열 흡음 재료의 조성물{THE COMPOSITION OF ADIABATIC MATERIAL AND SOUND ABSORPTION}THE COMPOSITION OF ADIABATIC MATERIAL AND SOUND ABSORPTION}

본 발명은 단열성 방음성 충격 완화성등 여러 기능을 갖는 단열 흡음 재료의 조성물에 관한 것으로 구체적으로는 실리카 에어로젤 분말,폴리 아크릴산계 고흡수성 폴리머등 그 자체가 특수 기능을 갖는 재료에 규조토, 탄산칼슘,탄산마그네슘, CSA계 팽창제, 마이크로 시멘트, 마이크로 실리카, 강도 강화 섬유, 지연 감수제를 첨가하여 구성되는 단열 흡음 재료의 조성물에 관한 것이다.The present invention relates to a composition of a heat-insulating sound absorbing material having various functions such as heat insulating soundproofing shock absorbing, specifically, silica airgel powder, polyacrylic acid-based superabsorbent polymer, such as diatomaceous earth, calcium carbonate, carbonic acid The present invention relates to a composition of a heat insulating sound absorbing material comprising magnesium, a CSA-based expander, micro cement, micro silica, a strength reinforcing fiber, and a delay reducing agent.

본 발명에서 사용되는 조성물인 실리카 에어로젤(Aerogel)은 중량이 세제곱 센티미터당 3미리 그램에 불과하고 기공이 많아 공기처럼 가벼운 물질로 단열성 방음성, 충격 완충재등으로 사용 할수 있는 기능이 있으나 그 자체적으로는 강도 및 신축성이 약해서 실용화에 많은 어려움을 겪고 있다. 소수성인 실리카 에어로젤을 본 발명에 적용시켜 실용화 할수 있도록 하고 선택적으로 수분을 강력하게 흡수하여 타 재료와의 혼화성을 높이고 경화시켜 일체화를 하는 폴리 아크릴산계 흡수성 폴리머를 중요한 가교제로 적용을 하고 여기에 수화성을 갖는 물질과 단열재로서의 요구되는 물성을 부여하는 첨가제로 조성된 단열성 및 흡음성의 첨가 재료의 조성물에 관한 것이다.Silica airgel (Aerogel), the composition used in the present invention has a weight of only 3 milligrams per cubic centimeter and has a lot of pores, so it can be used as a heat insulating soundproofing, impact buffer, etc. And it has a lot of difficulties in practical use because of its weak elasticity. The hydrophobic silica airgel can be applied to the present invention for practical use, and it selectively absorbs moisture to increase the miscibility with other materials and cures to apply polyacrylic acid-based absorbent polymer as an important crosslinking agent. The present invention relates to a composition of heat-insulating and sound-absorbing additive materials composed of a material having chemical properties and additives for imparting required properties as heat insulating materials.

종래 가장 많이 사용하고 있는 단열재는 규산 칼슘, 유리면, 암면, 세라믹 섬유, 팽창 질석, 펄라이트 및 석고 내장재, 스티로폼, 폴리머 단열재등 단열 성능을 높인 여러 종류의 재료들이 사용되어 왔으나 에너지 절감을 위한 더 높은 단열성의 재료를 요구하고 있다. 미래의 단열 방음재로 주목되는 실리카 에어로젤은 1930년대에 발견된 이후 실생활에 적용시키기 위해 여러 다국적 회사에서 연구를 했으나 실패하고 최근에 재료의 제조 시기 단축과 섬유등 경화성 물질의 첨가로 성능을 향상시킨 외국산 제품이 판매 되고 있는 실정이다. 실리카 에어로젤은 자체의 성능은 우수하나 독립적으로는 사용할수 없어서 판상의 다른 재료내에 분말 상태로 충진을 하는등 기술적으로 많은 어려움을 겪고 있다. 실제 단열 재료로 이용하는 경우는 더물고 특수 용도나 연구 개발 목적으로 소량이 이용되고 있는 실정이다. 초 단열성인 실리카 에어로젤이 실 생활에 적용되기 위해서는 타 재료와의 혼화성을 가지며 그 물성이 그대로 유지되고 강도 및 유연성이 구비되어야 하는데 그 기술을 개발하는데 어려움이 많은 실정이다. 또한 실리카 에어로젤은 기초 소재의 생산 단계로 적용하는 단계에서 보다 많은 연구가 필요 하다.The most widely used thermal insulation materials include calcium silicate, glass wool, rock wool, ceramic fiber, expanded vermiculite, pearlite and gypsum interior materials, styrofoam, and polymer insulation materials. It requires material. Silica aerogels, which are noted as a thermal insulation sound insulation in the future, have been studied by several multinational companies for their application in real life since they were discovered in the 1930s, and failed in recent years. The product is being sold. Silica aerogels have excellent technical performances, but they cannot be used independently. Therefore, they have a lot of technical difficulties, such as filling powder into other plate materials. In fact, when used as a thermal insulation material, a small amount is used for special purposes or research and development purposes. In order to apply ultra-insulating silica airgel to real life, it has miscibility with other materials, its physical properties should be maintained, and strength and flexibility should be provided. In addition, more research is needed in the application of silica airgel to the production stage of the base material.

본 발명자도 이에 편성하여 실리카 에어로젤을 실 생활에 적용시키기 위해 본 발명에 이르게 되었다.The present inventors have also organized the present invention to apply silica airgel to real life.

본 발명은 단열성 흡음성을 갖는 실리카 에어로젤을 실 생활에 적용시키기 위해서 개발한 것으로 타 단열 흡음 용도로 사용되는 제품에 본 재료를 첨가 사용하여 단열성 및 흡음성을 향상시키기 위해 개발된 재료로 실리카 에어로젤 분말에 고흡수성 폴리머(SAP), 경화제, 보강 섬유등을 첨가하여 혼합후 총 재료의 중량비 100％에 대해서 물 25∼40％ 투입하여 5분내로 교반후 성형체를 만들고 건조후 수 미크론에서 수십 미크론 이상으로 분쇄한 미세 분말 및 과립형태의 단열 흡음 재료의 조성물을 제공함에 있다. 우선 실리카 에어로젤의 단열성 흡음성은 그대로 유지를 하고 기타 재료와의 혼화성을 높이고 경화시켜 합성된 복합체를 만들어 건조 분쇄하여 비중을 높인 미세한 분말 및 과립형태의 재료로 만들고 기타 단열 흡음 용도의 재료에 혼화 및 점착이 잘 되게 하여 타 제품의 성능을 향상시키는 것이 주 목적이라 하겠다.The present invention was developed to apply silica airgel having heat insulating sound absorption to real life, and was developed to improve heat insulation and sound absorption by adding this material to products used for other heat insulating sound absorbing applications. Absorbent polymer (SAP), hardener, reinforcing fiber, etc. are added, and after mixing, 25 ~ 40% of water is added to 100% of the total weight of the material. After stirring within 5 minutes, the molded product is made and dried and then pulverized from several microns to several tens of microns or more. It is to provide a composition of the thermal insulation sound-absorbing material in the form of fine powder and granules. First of all, the adiabatic sound absorbency of silica airgel is maintained as it is, it is mixed with other materials and cured to make a composite composite, dried and pulverized into fine powder and granular material with high specific gravity, and mixed with other heat absorbing and sound absorbing materials. Its main purpose is to improve the performance of other products by making them stick well.

본 발명에 의한 단열 흡음 재료의 조성물은 중량비로 규조토 20∼25wt％ 탄산 칼슘 15∼20wt％, 탄산 마그네슘 5∼8wt％, CSA계 팽창제 2∼4wt％, 마이크로 시멘트 25∼30wt％, 실리카 에어로젤 분말 5∼18wt％, 마이크로 실리카 1∼3wt％. 폴리 아크릴산계 흡수성 폴리머 분말 및 폴리 아크릴산 나트륨염 흡수성 폴리머 섬유 중 하나 이상 선택하는 2∼5wt％, PVA섬유 및 탄화규소 섬유 중 하나 이상 선택하는 0.5∼3wt％, 글리콘산 나트륨염 분말 0.3 ∼1wt％ 로 구성되는 단열 흡음 재료의 조성물이라 하겠다.The composition of the heat insulating sound absorbing material according to the present invention is 20 to 25wt% of diatomaceous earth, 15 to 20wt% of calcium carbonate, 5 to 8wt% of magnesium carbonate, 2 to 4wt% of CSA-based expander, 25 to 30wt% of micro cement, silica airgel powder 5 -18 wt%, 1-3 wt% of micro silica. 2 to 5 wt% of at least one selected from polyacrylic acid absorbent polymer powder and polyacrylic acid sodium salt absorbent polymer fibers, 0.5 to 3 wt% selected from at least one selected from PVA fiber and silicon carbide fiber, and 0.3 to 1 wt% sodium glyconate powder The composition of the thermal insulation sound-absorbing material composed of.

상기 조성물의 주성분이 되는 실리카 에어로젤(Aerogel)은 규소 산화물로 구성되며 열 전기 소리 충격등을 막는 효과가 뛰어나고 무게가 같은 부피 공기의 3배 밖에 무겁지 않고 전체 부피의 98％를 공기가 차지하며 유리 보다 1천배나 밀도가 낮다. 특히 단열 성능은 기존의 단열재인 폴리우레탄 폼이나 스티로폼. 유리섬유에 비해 3배 이상의 단열 성능을 보인다. 그러나 자체적으로는 강도 및 신축성이 약해서 타 재료와 합성을 하여 실용화시켜야 하는 문제점이 있다. 이에 본 발명에서는 실리카 에어로젤을 폴리 아크릴산계 흡수성 폴리머등으로 습윤화하고 표면 경화하여 합성한 복합체로 일체화시킨 것이 특징이라 하겠다.Silica airgel (Aerogel), which is the main component of the composition, is composed of silicon oxide, which is excellent in preventing thermal electric shock, etc., is only three times as heavy as volume air of the same weight, and occupies 98% of the total volume by air. 1,000 times lower density. In particular, the insulation performance is polyurethane foam or styrofoam, which is a conventional insulation. 3 times more insulation than glass fiber. However, due to its own strength and elasticity, there is a problem in that it needs to be synthesized with other materials for practical use. Accordingly, the present invention is characterized in that the silica airgel is wetted with a polyacrylic acid-based absorbent polymer or the like and integrated into a composite synthesized by surface curing.

또한 중요한 작용을 하는 재료는 폴리 아크릴산계 고흡수성 폴리머(SAP)로 기존의 펄프 등 물을 흡수하는 재료는 흡수력이 자기 무게의 30배 정도로 낮고 압력을 가하면 물을 쉽게 배출하는 것에 반해서 고 흡수성 폴리머는 100배 이상의 흡수력을 갖고 있으며 물이 투입 되면 순간적으로 흡수하고 팽창하여 겔화가 되는 성질이 있다. 이를 활용하여 소수성 표면의 실리카 에어로젤 분말과 기타 친수성 재료와의 접촉력을 높여 일체화되게 하는 중요한 역할을 한다 하겠다. 물을 흡수함과 동시에 다른 재료들을 끌어 당겨서 서로 혼화되게 하고 자체적으로 점착력을 가지고 있고 물과 경화성 재료를 머물고 있어서 서서히 경화되게 하여 전 재료를 합성하는 중간 매개체 역할을 한다. 반건식 교반을 통해서 특히 마이크로 시멘트와의 경화가 빠르게 진행 된다.In addition, the material that plays an important role is polyacrylic acid-based superabsorbent polymer (SAP), which absorbs water such as pulp, which is 30 times lower than its own weight and absorbs water easily when pressure is applied. It has more than 100 times the absorbing power, and when water is injected, it instantly absorbs and expands to gel. By utilizing this, it plays an important role to increase the contact force between the hydrophobic silica airgel powder and other hydrophilic materials to be integrated. It absorbs water and at the same time attracts other materials to blend with each other, has self-adhesion, and stays in water and curable material, allowing it to cure slowly, acting as an intermediate medium for synthesizing all materials. Semi-dry agitation accelerates the hardening, especially with micro cement.

규조토는 이산화규소를 90％이상 함유하는 매우 낮은 밀도로 흡착제 및 연마제로도 사용되는 것으로 높은 공극률과 낮은 유동성, 낮은 열 전도 및 고온에서의 낮은 수축과 온도 증가에 따른 강도 향상의 기능으로 사용된다. 또한 실리카 에어로젤 분말과 흡수성 폴리머등과의 흡착력을 증대시켜 치밀한 조직을 이루게하여 경화체가 잘 형성 되도록 하는 역할을 한다.Diatomaceous earth is also used as an adsorbent and abrasive with a very low density containing more than 90% of silicon dioxide. It has high porosity, low fluidity, low heat conduction, low shrinkage at high temperature, and strength enhancement due to temperature increase. In addition, it increases the adsorption power of the silica airgel powder and the absorbent polymer to form a dense structure and serves to form a hardened body well.

탄산 칼슘은 칼슘의 석회석을 소성로 등에서 고온 소성하여 생석회와 탄산 가스를 분해하여 생성된 생석회를 수화하여 얻는 수산화 칼슘에 탄산가스를 불어 넣어 재차 탄산 가스를 침전시켜 만든 것으로 비중이 높지 않아 중화제로 사용되고 기본 원료와 쉽게 혼화가 되어 충진제의 역할을 한다. 또한 각 재료와의 층층간 혼화성을 높이고 강도 강화의 기능을 한다.Calcium carbonate is made by recalculating carbon dioxide by blowing carbon dioxide into calcium hydroxide obtained by calcifying limestone of calcium at high temperature in a kiln and decomposing quicklime and carbon dioxide. Easily miscible with the raw material to act as a filler. In addition, it increases the interlayer compatibility with each material and serves to strengthen the strength.

탄산 마그네슘은 마그네슘을 녹인 수용액에 이산화 탄소를 통하면서 탄산 나트륨을 넣어 만든 흰색의 결정체로 물에 약간 녹으며 혼화성 및 단열성을 향상시키기 위해 사용되며 물과의 반응에서는 일부가 부풀어 각 재료 사이에 층을 형성시켜 실리카 에어로젤 분말과 마이크로 시멘트, 마이크로 실리카등과의 겹층의 혼화성을 주어 각 재료와의 경화성을 높이고 단단한 결정체를 형성한다.Magnesium carbonate is a white crystal made by adding sodium carbonate through carbon dioxide in an aqueous solution of magnesium. It is slightly soluble in water and used to improve miscibility and thermal insulation. It forms a miscible layer of silica airgel powder and micro cement, micro silica and the like to increase the curability with each material and to form hard crystals.

CSA계 팽창제는 석회 석고 보오크사이트를 주성분으로 하는 소성 화합물로 아우인, 유리석회, 유리석고의 광물로 구성되어 있고 이러한 수화 반응에 의해 생성되는 에트링자이트는 수 미크론의 매우 작은 결정으로 마이크로 시멘트와 기타 재료와의 경화에 의한 수축과 건조 수축을 저감시키고 아울러 팽창시키는 작용도 한다. 또한 과립 형태로 구성될때 균열 방지하는 기능을 한다.CSA-based expander is a plastic compound whose main component is lime gypsum bauxite. It is composed of minerals of enamel, glass lime, and glass gypsum. The ettringite produced by this hydration reaction is a very small crystal of several microns. And shrinkage and drying shrinkage caused by curing with other materials, and also serves to expand. It also serves to prevent cracking when formed in granular form.

마이크로 시멘트는 미립자 무기질계 시멘트로 활성화가 빠르게 진행되며 조기 강도가 우수하고 최대 입경 크기가 작아 치밀한 매트릭스를 조직하므로 강도 발현이 우수하다. 주 바인드로 적용이 되며 실리카 에어로젤 분말과는 흡수성 폴리머가 머물고 있는 수분을 흡수함으로 해서 경화가 진행되며 치밀한 조직을 이루어 전체적인 겔화를 형성하여 수 경화를 촉진 시킨다.Micro cement is a fine particle inorganic cement, which activates rapidly and has excellent early strength and small particle size. It is applied as the main bind, and the silica airgel powder and the absorbent polymer absorb the moisture staying to cure and form a dense structure to form the entire gelation to promote water curing.

한편 마이크로 실리카는 수 미크론의 구형 입자이고 낮은 비중으로 실리카 에어로젤 분말과 층층간 혼화가 되며 마이크로 시멘트와의 점착으로 윤활성 및 강도를 향상시킨다.On the other hand, micro silica is a spherical particle of several microns, and has a low specific gravity, which is intermixed with silica airgel powder, and improves lubricity and strength by adhesion with micro cement.

PVA섬유는 범용 합성 섬유중에서 강도와 탄성률이 가장 높고 친수성이며 연소시도 유해 물질을 발생하지 않으며 수산화기(-OH)의 계면 활성 작용으로 타 재료와의 접착성을 향상시켜 강도를 증대시킨다. 탄화규소 섬유는 실리콘 카바이트 섬유라고도 하며 폴리 에틸렌형의 유기 고분자 화합물속의 탄소의 일부를 규소로 치환하여 만든 섬유로 고온에 잘 견딘다. 직경 및 축 방향 길이는 수 미크론에서 수십 미크론 이하를 사용한다.PVA fiber has the highest strength and elastic modulus among general-purpose synthetic fibers, hydrophilicity, does not generate harmful substances during combustion, and increases the strength by improving the adhesion with other materials through the interfacial action of hydroxyl (-OH). Silicon carbide fiber, also called silicon carbide fiber, is a fiber made by substituting a part of carbon in an organic polymer compound of polyethylene type with silicon and withstands high temperature well. Diameters and axial lengths range from a few microns to tens of microns or less.

글리콘산 나트륨염 분말은 비부식성 및 비독성이고 물에 잘 녹으며 지연 감수 효과로 압축 강도 증진 기능을 하며 균열을 방지해 준다. 수용액내의 금속 이온과 점착이 잘 이루어지고 윤활 작용과 각 재료간 유동성을 향상시켜 실리카 에어로젤 분말이 경화제등과 혼화가 잘 되도록 하여 복합적으로 경화체가 형성 되도록 하는 기능을 한다 하겠다.Sodium Glyconate Powder is non-corrosive and non-toxic, well soluble in water, delayed susceptibility to increase compressive strength and prevent cracking. Adhesion with the metal ions in the aqueous solution is well done, and the lubrication action and fluidity between each material is improved so that the silica airgel powder is well mixed with the curing agent and the like to function to form a cured body complex.

상술한 조성비로 이루어진 단열 흡음 재료의 조성물은 분말 상태로 되어 있고 총 재료 1 중량부에 대해서 0.25∼ 0.4의 물을 첨가하여 5분내에 교반기를 통한 혼합후 성형체를 만들며 건조시킨 후 다시 수 미크론에서 수십 미크론 이상으로 분쇄하여 미세 분말 및 과립형태로 만들어 타 제품의 단열성을 필요로 하는 도료, 벽돌, 블록, 콘크리트 2차 제품등에 30％내로 혼합 사용하여 단열 성능을 더 강화시키는 단열 흡음 재료의 조성물이라 하겠다.The composition of the heat-insulating sound-absorbing material having the above composition ratio is in the form of a powder and is mixed with a stirrer within 5 minutes by adding water of 0.25 to 0.4 per 1 part by weight of the total material to make a molded body, dried and then several tens of microns It is a composition of heat-insulating sound absorbing material that further strengthens insulation performance by mixing within 30% of paint, brick, block, and concrete secondary products that require the insulation of other products by grinding it into fine powder and granule form by pulverizing more than micron. .

본 발명에 의한 단열 흡음 재료의 조성물은 주성분이 단열성 방음성 충격 완화성등의 기능을 갖는 실리카 에어로젤을 고흡수성 폴리머 및 경화제등으로 합성 결합시켜 혼합 건조후 분쇄하여 다시 미세 분말 및 과립형태로 만든 것으로 강도가 약하고 소수성인 실리카 에어로젤이 단독으로 사용하기에 어려웠던 점을 기타 재료와 접촉시켜 강도를 높이고 물성은 그대로 유지시키며 비중을 1 이상으로 높여 기타 단열 흡음성 용도의 제품과의 혼화성을 높이고 실생활에 쉽게 적용될수 있도록 한 것이 특징이라 하겠다.The composition of the heat-insulating sound absorbing material according to the present invention is composed of a silica aerogel whose main component is a heat insulating soundproof shock absorber and the like combined with a super absorbent polymer and a curing agent, mixed, dried and pulverized to form fine powder and granules again. The weak and hydrophobic silica airgel is difficult to use alone, in contact with other materials to increase its strength, maintain physical properties and increase its specific gravity to 1 or more to increase miscibility with products for other thermal insulation and sound absorption applications, and to be easily applied in real life. It is a feature that makes it possible.

수경화로 이루어지고 다시 미세 분말 및 과립형태로 만든것으로 타 제품에 첨가되었을때 잘 혼합이 이루어지고 여러겹으로 층층간 점착이 형성되어 단열 성능 및 흡음 성능을 향상시키는 첨가제로 사용되는 단열 흡음 재료의 조성물이라 할수 있다.It is made of water-hardening and made into fine powder and granule form, and when mixed with other products, it is well mixed and formed a layer-to-layer adhesion, which is used as an additive to improve insulation and sound absorption performance. It can be referred to as a composition.

Claims (1)

다음의 조성물과 조성비를 갖는 단열 흡음 재료의 조성물Composition of insulating sound absorbing material having the following composition and composition ratio 조성물 조성비(중량비wt％)Composition composition ratio (wt% wt%) A. 규조토 20∼25A. Diatomite 20-25 B. 탄산 칼슘 15∼20B. Calcium Carbonate 15-20 C. 탄산 마그네슘 5∼8C. Magnesium Carbonate 5-8 D. CSA계 팽창제 2∼4D. CSA Expanders 2-4 E. 마이크로 시멘트 25∼30E. Micro Cement 25 ~ 30 F. 실리카 에어로젤 분말 5∼18F. Silica Airgel Powder 5-18 G. 마이크로 실리카 1∼3G. Micro Silica 1-3 H. 폴리 아크릴산계 흡수성 폴리머 분말H. Polyacrylic Acid Absorbent Polymer Powder 폴리 아크릴산 나트륨염 흡수성 폴리머 섬유   Sodium Polyacrylate Absorbent Polymer Fiber 중에서 하나 이상 선택 하는 흡수성 폴리머 2∼5   Absorbent polymer 2-5 selected at least I. 폴리 비닐 알콜 섬유 I. Polyvinyl Alcohol Fiber 탄화 규소 섬유   Silicon carbide fiber 중에서 하나 이상 선택 하는 섬유상 0.5∼3   Fibrous 0.5-3 J. 글리콘산 나트륨염 분말 0.3∼1J. Sodium Glyconate Powder 0.3 ~ 1
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