JP2011111375A - Hardened body - Google Patents
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- JP2011111375A JP2011111375A JP2009270867A JP2009270867A JP2011111375A JP 2011111375 A JP2011111375 A JP 2011111375A JP 2009270867 A JP2009270867 A JP 2009270867A JP 2009270867 A JP2009270867 A JP 2009270867A JP 2011111375 A JP2011111375 A JP 2011111375A
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Abstract
Description
本発明は、新規な硬化体に関するものである。 The present invention relates to a novel cured product.
従来、壁、屋根、床、天井、柱、梁等の部位において、セメント、石膏等の無機系の結合材と骨材を含有する無機系硬化体が多く採用されている。例えば、各種高炉の鋳床や、住宅内装におけるコンロ周辺のキッチンバックパネル等、高温に晒される部分のある床や壁材の耐熱性材料として採用されている。
このような耐熱性材料として、例えば特許文献１には、セメントと特定の多孔性骨材を含む耐熱ブロックが記載されている。
Conventionally, inorganic hardened bodies containing inorganic binders such as cement and gypsum and aggregates are often used in parts such as walls, roofs, floors, ceilings, columns, and beams. For example, it is used as a heat-resistant material for floors and wall materials that have parts exposed to high temperatures, such as cast floors of various blast furnaces and kitchen back panels around the stove in the interior of a house.
As such a heat resistant material, for example, Patent Document 1 describes a heat resistant block containing cement and a specific porous aggregate.
しかし、特許文献１の耐熱性材料は、高温に耐え得る耐熱性を有しているが、一方で耐熱ブロックの温度が急激に上昇するおそれがある。 However, the heat-resistant material of Patent Document 1 has heat resistance that can withstand high temperatures, but on the other hand, the temperature of the heat-resistant block may rapidly increase.
本発明は、このような点に鑑みなされたものであり、優れた耐熱性を有する硬化体を得ることを目的とするものである。 This invention is made | formed in view of such a point, and it aims at obtaining the hardening body which has the outstanding heat resistance.
本発明者は、上記目的を達成するため鋭意検討を行なった結果、水硬性無機結合材、軽量骨材、特定の金属酸化物及び／または金属酸化物の前駆体、及び繊維状物質を構成成分とする硬化体に想到し、本発明を完成させた。
すなわち、本発明の硬化体は、下記の特徴を有するものである。
As a result of intensive studies to achieve the above object, the present inventor has found that a hydraulic inorganic binder, a lightweight aggregate, a specific metal oxide and / or a precursor of a metal oxide, and a fibrous material are constituent components. As a result, the present invention was completed.
That is, the cured body of the present invention has the following characteristics.
１．（Ａ）水硬性無機結合材１００重量部に対して、（Ｂ）軽量骨材１０〜３００重量部、（Ｃ）少なくとも２種以上の金属酸化物及び／または金属酸化物の前駆体１００〜１２００重量部、（Ｄ）融点１０００℃以上の繊維状物質５〜１００重量部、を構成成分とし、
上記（Ｃ）が、平均粒子径０．２μｍ以上２μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−１）、並びに平均粒子径２μｍ超１０μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−２）を含むことを特徴とする硬化体。
1. (A) 10 to 300 parts by weight of a lightweight aggregate with respect to 100 parts by weight of a hydraulic inorganic binder, (C) at least two kinds of metal oxides and / or metal oxide precursors 100 to 1200 Parts by weight, (D) 5 to 100 parts by weight of a fibrous material having a melting point of 1000 ° C. or higher,
The above (C) is a metal oxide and / or metal oxide precursor (C-1) having an average particle size of 0.2 μm or more and 2 μm or less, and a metal oxide and / or metal having an average particle size of more than 2 μm and 10 μm or less. A cured product comprising an oxide precursor (C-2).
本発明は、水硬性無機結合材、軽量骨材、平均粒子径０．２μｍ以上２μｍ以下の金属酸化物及び／または金属酸化物の前駆体、並びに平均粒子径２μｍ超１０μｍ以下の金属酸化物及び／または金属酸化物の前駆体、繊維状物質を必須成分として含む無機質硬化体であることにより、優れた耐熱性能を発揮することができるものである。 The present invention relates to a hydraulic inorganic binder, a lightweight aggregate, a metal oxide having an average particle size of 0.2 μm to 2 μm and / or a metal oxide precursor, a metal oxide having an average particle size of more than 2 μm and 10 μm or less, and By being an inorganic cured body containing a precursor of metal oxide and / or a fibrous material as essential components, excellent heat resistance can be exhibited.
（Ａ）水硬性無機結合材
本発明における水硬性無機結合材（以下、単に「（Ａ）成分」ともいう）としては、例えば、セメント、石膏、等が挙げられる。この中でも本発明では、セメントが好適に使用される。
セメントとしては、例えば、普通ポルトランドセメント、早強ポルトランドセメント、超早強ポルトランドセメント、中庸熱ポルトランドセメント、耐硫酸塩ポルトランドセメント、白色ポルトランドセメント等のポルトランドセメントのほか、アルミナセメント、超速硬セメント、膨張セメント、酸性リン酸塩セメント、シリカセメント、高炉セメント、フライアッシュセメント、キーンスセメント等が挙げられる。これらは１種または２種以上を混合して使用できる。これらの中でも、ポルトランドセメントが好ましい。より具体的には、普通ポルトランドセメント、早強ポルトランドセメント、超早強ポルトランドセメント、中庸熱ポルトランドセメント、耐硫酸塩ポルトランドセメント及び白色ポルトランドセメントの少なくとも１種が好ましいものとして挙げられる。
(A) Hydraulic inorganic binding material Examples of the hydraulic inorganic binding material (hereinafter, also simply referred to as “component (A)”) in the present invention include cement, gypsum, and the like. Among them, cement is preferably used in the present invention.
Examples of cement include ordinary Portland cement, early-strength Portland cement, ultra-early strong Portland cement, moderately hot Portland cement, sulfate-resistant Portland cement, white Portland cement, etc., as well as alumina cement, ultrafast cement, expanded Cement, acid phosphate cement, silica cement, blast furnace cement, fly ash cement, keens cement and the like can be mentioned. These may be used alone or in combination of two or more. Among these, Portland cement is preferable. More specifically, at least one of ordinary Portland cement, early-strength Portland cement, ultra-early strong Portland cement, moderately hot Portland cement, sulfate-resistant Portland cement and white Portland cement is preferable.
（Ｂ）軽量骨材
本発明における軽量骨材（以下、単に「（Ｂ）成分」ともいう）とは、天然鉱物の発泡または膨張した物質である膨張パーライト、膨張頁石、膨張バーミキュライト（ヒル石）、軽石、シラスバルーン等の他、シリカゲルを発泡させたもの、各種スラグを造粒して発泡させたもの、粘土粉体を造粒して発泡させたもの等の人工軽量骨材等が挙げられる。これらは１種または２種以上を混合して使用できる。この中でも、特に膨張パーライト及び／または膨張バーミキュライトを含むことが好ましい。（Ｂ）成分は、かさ比重が０．０５〜０．１５であることが好ましい。このような範囲である場合、優れた断熱性を発揮することができる。また、（Ｂ）成分の平均粒径は、特に限定されるものではないが、好ましくは１〜１０ｍｍ程度である。
(B) Lightweight Aggregate Lightweight aggregate in the present invention (hereinafter also simply referred to as “component (B)”) is an expanded perlite, expanded shale, expanded vermiculite (Hillstone) which is a natural mineral foamed or expanded material. ), Pumice, shirasu balloon, etc., artificial lightweight aggregate such as foamed silica gel, granulated various slag, foamed clay powder, etc. It is done. These may be used alone or in combination of two or more. Among these, it is particularly preferable to include expanded pearlite and / or expanded vermiculite. The component (B) preferably has a bulk specific gravity of 0.05 to 0.15. In such a range, excellent heat insulating properties can be exhibited. Moreover, the average particle diameter of (B) component is although it does not specifically limit, Preferably it is about 1-10 mm.
（Ｂ）成分の比率は、（Ａ）成分１００重量部に対して、１０〜３００重量部、好ましくは５０〜２００重量部である。このような範囲である場合、優れた耐熱性、断熱性を発揮することができる。 The ratio of (B) component is 10-300 weight part with respect to 100 weight part of (A) component, Preferably it is 50-200 weight part. In such a range, excellent heat resistance and heat insulation can be exhibited.
（Ｃ）金属酸化物及び／または金属酸化物の前駆体
本発明における金属酸化物及び／または金属酸化物の前駆体（以下、単に「（Ｃ）成分」ともいう）は、硬化体の耐熱性を向上させるものである。
金属酸化物としては、特に限定されないが、例えば、亜鉛、鉄、銅、錫、バリウム、アルミニウム、マグネシウム、チタン、ジルコニウム、アンチモン、インジウム等の酸化物、またそれらの複合酸化物等が挙げられる。本発明では特に、酸化アルミニウム、酸化チタン、酸化マグネシウム等が好ましい。
金属酸化物の前駆体としては、硬化体が高温に晒された際に、酸化反応等により上記の金属酸化物を生成するものであれば特に限定されず、例えば、亜鉛、鉄、銅、錫、バリウム、アルミニウム、マグネシウム、チタン、ジルコニウム、アンチモン、インジウム等の各種金属、またはそれら金属の水酸化物、硫酸塩、亜硫酸塩、リン酸塩、硝酸塩、酢酸塩、塩化物塩、ホウ酸塩、または上記金属の複合化合物等が挙げられる。本発明では特に、上記金属の水酸化物、硫酸塩、ホウ酸塩等が好ましい。
(C) Metal Oxide and / or Precursor of Metal Oxide The metal oxide and / or precursor of the metal oxide in the present invention (hereinafter also simply referred to as “component (C)”) is the heat resistance of the cured product. Is to improve.
Although it does not specifically limit as a metal oxide, For example, oxides, such as zinc, iron, copper, tin, barium, aluminum, magnesium, titanium, zirconium, antimony, indium, those complex oxides, etc. are mentioned. In the present invention, aluminum oxide, titanium oxide, magnesium oxide and the like are particularly preferable.
The precursor of the metal oxide is not particularly limited as long as it generates the above metal oxide by an oxidation reaction or the like when the cured body is exposed to a high temperature. For example, zinc, iron, copper, tin , Various metals such as barium, aluminum, magnesium, titanium, zirconium, antimony, indium, or hydroxides, sulfates, sulfites, phosphates, nitrates, acetates, chlorides, borates of these metals, Or the compound compound of the said metal, etc. are mentioned. In the present invention, the above metal hydroxides, sulfates, borates and the like are particularly preferable.
また、（Ｃ）成分の金属酸化物としては屈折率が１．４以上のものが好ましい。この場合、硬化体の耐熱性を向上させることができる。 Moreover, as a metal oxide of (C) component, a thing with a refractive index of 1.4 or more is preferable. In this case, the heat resistance of the cured body can be improved.
（Ｃ）成分の比率は、（Ａ）成分１００重量部に対して、１００〜１２００重量部、好ましくは３００〜９００重量部である。このような範囲である場合、優れた耐熱性を有することができる。 The ratio of (C) component is 100-1200 weight part with respect to 100 weight part of (A) component, Preferably it is 300-900 weight part. In such a range, excellent heat resistance can be obtained.
本発明において、上記（Ｃ）成分は、平均粒子径０．２μｍ以上２μｍ以下（好ましくは０．６μｍ以上１．８μｍ以下）の金属酸化物及び／または金属酸化物の前駆体（Ｃ−１）（以下、単に「（Ｃ−１）成分」ともいう）、並びに平均粒子径２μｍ超１０μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−２）（以下、単に「（Ｃ−２）成分」ともいう）を含むものである。このように、平均粒子径が異なる少なくとも２種以上の（Ｃ）成分を含むことにより、優れた耐熱性を発揮することができる。 In the present invention, the component (C) is a metal oxide and / or metal oxide precursor (C-1) having an average particle size of 0.2 μm to 2 μm (preferably 0.6 μm to 1.8 μm). (Hereinafter, also simply referred to as “component (C-1)”) and metal oxide and / or metal oxide precursor (C-2) having an average particle diameter of more than 2 μm and 10 μm or less (hereinafter simply referred to as “(C— 2) also referred to as “component”). Thus, the outstanding heat resistance can be exhibited by including the (C) component of 2 or more types from which an average particle diameter differs.
（Ｃ）成分中の（Ｃ−１）成分と（Ｃ−２）成分の重量比は、１：１〜１：８０であることが好ましい。この場合、優れた耐熱性能を発揮することができる。 The weight ratio of the component (C-1) to the component (C-2) in the component (C) is preferably 1: 1 to 1:80. In this case, excellent heat resistance can be exhibited.
この（Ｃ）成分の作用機構は明らかではないが、一般に粒子はレイリー散乱の理論から、その粒子の２倍の長さの波長の光を最も強く反射するため、（Ｃ−１）成分は波長０．５μｍ〜５μｍ程度の波長領域（可視光〜中赤外線領域）、また（Ｃ−２）成分は波長５μｍ〜２５μｍ程度の波長領域（中赤外線〜遠赤外線領域）において高い反射率を有すると推察される。このため、本発明の硬化体は、広範囲の波長領域において高い反射率を有しており、高温に晒された場合でも効率的に温度上昇を抑制することができるものと推察される。 Although the mechanism of action of the component (C) is not clear, in general, the particle reflects light having a wavelength twice as long as that of the particle based on the theory of Rayleigh scattering. It is assumed that the component (C-2) has a high reflectance in the wavelength region of 0.5 μm to 5 μm (visible light to mid-infrared region) and the wavelength region of about 5 μm to 25 μm (mid-infrared to far infrared region). Is done. For this reason, the cured body of the present invention has a high reflectance in a wide wavelength range, and it is presumed that the temperature rise can be efficiently suppressed even when exposed to high temperatures.
本発明において、特に高い耐熱性を必要とする場合、金属酸化物と金属酸化物の前駆体をそれぞれ含むことが好ましい。この場合の（Ｃ−１）成分と（Ｃ−２）成分の組み合わせとしては、例えば、（Ｃ−１）成分として酸化チタン（屈折率：２．７１）、（Ｃ−２）成分として水酸化アルミニウム（酸化アルミニウム（屈折率：１．７６）の前駆体）とすることが好ましい。 In the present invention, when particularly high heat resistance is required, it is preferable to include a metal oxide and a metal oxide precursor, respectively. In this case, the combination of the component (C-1) and the component (C-2) includes, for example, titanium oxide (refractive index: 2.71) as the component (C-1) and hydroxylation as the component (C-2). It is preferable to use aluminum (a precursor of aluminum oxide (refractive index: 1.76)).
（Ｄ）繊維状物質
本発明における繊維状物質（以下、単に「（Ｄ）成分」ともいう）は、融点１０００℃以上のものであり、硬化体に優れた耐熱性、耐久性を付与するものである。
（Ｄ）成分としては、例えば、ロックウール、セラミック繊維等の人工鉱物繊維、珪酸塩鉱物等の天然鉱物繊維が挙げられ、これらは１種又は２種以上を混合して使用できる。本発明では特に、ザクロ石、カンラン石等のネソ珪酸塩；異極鉱、ローソン石等のソロ珪酸塩；緑柱石や電気石等のシクロ珪酸塩；輝石類、珪灰石、角閃石、ゾノトラ石等のイノ珪酸塩；雲母類、滑石、緑泥石類等のフィロ珪酸塩；長石類、沸石類等のテクト珪酸塩；等の珪酸塩鉱物が好ましく、中でも、輝石類、珪灰石、角閃石、ゾノトラ石等のイノ珪酸塩が好ましい。
(D) Fibrous material The fibrous material in the present invention (hereinafter also simply referred to as “component (D)”) has a melting point of 1000 ° C. or higher, and imparts excellent heat resistance and durability to the cured body. It is.
Examples of the component (D) include artificial mineral fibers such as rock wool and ceramic fibers, and natural mineral fibers such as silicate minerals, and these can be used alone or in combination. In the present invention, in particular, nezosilicates such as garnet and olivine; solosilicates such as heteropolarite and Lawsonite; cyclosilicates such as beryl and tourmaline; pyroxenes, wollastonite, amphibolite, and zonotralite Inosilicates such as phyllosilicates such as mica, talc and chlorite; Tectonic silicates such as feldspars and zeolites; silicate minerals such as pyroxenes, wollastonite, amphibole, Inosilicates such as zonotolite are preferred.
（Ｄ）成分の平均繊維長は１０〜４０００μｍ、好ましくは１０〜１０００μｍ、より好ましくは１００〜５００μｍである。また、（Ｄ）成分の比率は、（Ａ）成分１００重量部に対して、５〜１００重量部、好ましくは１０〜８０重量部である。このような範囲である場合、耐熱性、耐久性（耐クラック性）、等に優れる。 (D) The average fiber length of a component is 10-4000 micrometers, Preferably it is 10-1000 micrometers, More preferably, it is 100-500 micrometers. Moreover, the ratio of (D) component is 5-100 weight part with respect to 100 weight part of (A) component, Preferably it is 10-80 weight part. In such a range, it is excellent in heat resistance, durability (crack resistance), and the like.
本発明の硬化体は、上記（Ｂ）成分、（Ｃ）成分、（Ｄ）成分を併用して用いることにより、優れた耐熱性、断熱性、耐久性を有するものである。作用機構は明らかではないが、（Ｄ）成分は融点が１０００℃以上と高温でり、１０００℃未満の温度では軟化しないため、硬化体が高温に晒された場合でも繊維状を維持することができる。これにより硬化体強度の低下を抑制することができるとともに、（Ｄ）成分は硬化体中で（Ｂ）成分、及び（Ｃ）成分のスペーサーとして作用すると推察される。このスペーサー効果により、（Ｂ）成分の空隙を保持すること、（Ｃ）成分の焼結による粒子径増大を抑制することができ、上述の反射特性等を維持すると推察される。この結果、本発明の（Ｂ）成分、（Ｃ）成分の効果を十分に発揮させることができると考えられる。 The cured body of the present invention has excellent heat resistance, heat insulation, and durability by using the above components (B), (C), and (D) in combination. Although the mechanism of action is not clear, the component (D) has a high melting point of 1000 ° C. or higher and does not soften at a temperature lower than 1000 ° C., so that it can maintain a fibrous shape even when the cured body is exposed to a high temperature. it can. Thereby, while the fall of hardening body intensity | strength can be suppressed, it is guessed that (D) component acts as a spacer of (B) component and (C) component in a hardening body. By this spacer effect, it is presumed that the voids of the component (B) can be maintained and the increase in the particle diameter due to the sintering of the component (C) can be suppressed, and the above-described reflection characteristics and the like are maintained. As a result, it is considered that the effects of the components (B) and (C) of the present invention can be sufficiently exhibited.
上記以外に、本発明の硬化体の構成成分として、（Ｆ）合成樹脂、（Ｇ）粘性調整剤、（Ｈ）充填剤、（Ｉ）前記（Ｄ）以外の繊維状物質を含むことができる。 In addition to the above, (F) a synthetic resin, (G) a viscosity modifier, (H) a filler, (I) a fibrous substance other than (D) can be included as a constituent component of the cured body of the present invention. .
（Ｆ）合成樹脂は、ラテックス、合成樹脂エマルション、粉末樹脂等のいずれであっても良い。とりわけ、プレミックスが可能であり、加水後の分散性に優れるという点で再乳化形粉末樹脂を好適に用いることができる。樹脂成分としては、最終的に得られる硬化体の強度向上、成形性の向上等を図ることができるものであれば限定的でなく、公知のもの又は市販品を使用することができる。例えば、アクリル樹脂、酢酸ビニル樹脂、プロピオン酸ビニル樹脂、ベオバ樹脂、アクリル酢酸ビニル樹脂、エチレン酢酸ビニル樹脂、塩化ビニル樹脂、エポキシ樹脂等を挙げることができる。これらの樹脂成分を添加することにより、強度等の向上を図ることができる。樹脂成分の添加量は限定的ではないが、通常は（Ａ）成分１００重量部に対し、固形分換算で３〜５０重量部程度とすることが強度向上の点で望ましい。 (F) The synthetic resin may be any of latex, synthetic resin emulsion, powder resin, and the like. In particular, a re-emulsified powder resin can be suitably used in that premixing is possible and the dispersibility after addition of water is excellent. The resin component is not limited as long as it can improve the strength and moldability of the finally obtained cured body, and known or commercially available products can be used. For example, acrylic resin, vinyl acetate resin, vinyl propionate resin, Veova resin, acrylic vinyl acetate resin, ethylene vinyl acetate resin, vinyl chloride resin, epoxy resin and the like can be mentioned. By adding these resin components, the strength and the like can be improved. Although the addition amount of the resin component is not limited, it is usually desirable in terms of strength improvement to be about 3 to 50 parts by weight in terms of solid content with respect to 100 parts by weight of component (A).
（Ｇ）粘性調整剤は、粘性調整や保水性の向上による作業性の改良のために添加するものであり、セルロース類等の水溶性樹脂が使用できる。（Ｈ）充填剤としては、炭酸カルシウム、炭酸マグネシウム等の炭酸塩が使用できる。（Ｉ）前記（Ｄ）以外の繊維状物質は、収縮量低下、等のために添加するものであり、ガラス繊維等の無機繊維が使用できる。 (G) The viscosity modifier is added for improving workability by adjusting viscosity or improving water retention, and water-soluble resins such as celluloses can be used. (H) As the filler, carbonates such as calcium carbonate and magnesium carbonate can be used. (I) Fibrous substances other than (D) are added for shrinkage reduction, etc., and inorganic fibers such as glass fibers can be used.
さらに、上記以外にも必要に応じて、界面活性剤、減水剤、消泡剤、防錆剤、顔料等の公知の添加剤を含んでもよい。 Furthermore, you may contain well-known additives other than the above as needed, such as surfactant, a water reducing agent, an antifoamer, a rust preventive agent, and a pigment.
本発明硬化体は、（Ａ）水硬性無機結合材、（Ｂ）軽量骨材、平均粒子径０．２μｍ以上２μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−１）、並びに平均粒子径２μｍ超１０μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−２）、及び（Ｄ）融点１０００℃以上の繊維状物質を必須構成成分とし、これらと適当量の水とを均一に混合した組成物（以下、単に「硬化体組成物」ともいう）を成形することによって得られるものである。硬化体組成物の各成分は、（Ａ）成分１００重量部に対して、（Ｂ）成分１０〜３００重量部、（Ｃ）成分５０〜１０００重量部、及び（Ｄ）成分５〜５０重量部を含むものである。 The cured product of the present invention comprises (A) a hydraulic inorganic binder, (B) a lightweight aggregate, a metal oxide having an average particle diameter of 0.2 μm to 2 μm and / or a metal oxide precursor (C-1), And metal oxide and / or metal oxide precursor (C-2) having an average particle diameter of more than 2 μm and not more than 10 μm, and (D) a fibrous material having a melting point of 1000 ° C. or more as essential constituents, and an appropriate amount thereof It is obtained by molding a composition in which water is uniformly mixed (hereinafter also simply referred to as “cured body composition”). Each component of the cured product composition is 10 to 300 parts by weight of component (B), 50 to 1000 parts by weight of component (C), and 5 to 50 parts by weight of component (D) with respect to 100 parts by weight of component (A). Is included.
水の比率は、（Ａ）成分１００重量部に対し、好ましくは１００〜２０００重量部、より好ましくは２００〜１５００重量部である。この範囲の水を添加することにより、硬化体を効率的に形成することができる。 The ratio of water is preferably 100 to 2000 parts by weight, more preferably 200 to 1500 parts by weight with respect to 100 parts by weight of component (A). By adding water in this range, a cured product can be efficiently formed.
上記硬化体組成物の成形方法としては、特に限定されないが、例えば、硬化体組成物を型枠内に流し込み、乾燥後に脱型する方法、あるいは耐熱性が要求される各部位に直接塗付し、乾燥、成形する方法、等が挙げられる。 The molding method of the cured product composition is not particularly limited. For example, the cured product composition is poured into a mold and demolded after drying, or directly applied to each part requiring heat resistance. , Drying, molding, and the like.
上記において、硬化体組成物を流し込む、あるいは塗付する際には、例えば、スプレー、ローラー、こて、刷毛塗り、レシプロ、コーター、流し込み、等の手段を用いた方法を採用することができる。また、使用できる型枠としては、例えばシリコン樹脂製、ウレタン樹脂製、金属製等の型枠、あるいは離型紙を設けた型枠等が使用できる。
また、硬化体組成物を乾燥させる際には、通常常温で行えばよい。
In the above, when the cured product composition is poured or applied, a method using means such as spray, roller, trowel, brush coating, reciprocating, coater, casting or the like can be employed. Moreover, as a usable mold, for example, a mold made of silicon resin, urethane resin, metal or the like, or a mold provided with release paper can be used.
Moreover, what is necessary is just to perform normally at normal temperature, when drying a hardening body composition.
本発明硬化体の厚みは、通常１〜３０ｍｍ、好ましくは５〜２０ｍｍ程度である。この場合、優れた耐熱性、断熱性、耐久性を発揮することができる。 The thickness of this invention hardening body is 1-30 mm normally, Preferably it is about 5-20 mm. In this case, excellent heat resistance, heat insulation, and durability can be exhibited.
本発明の硬化体は、壁、屋根、床、天井、柱、梁、等の部位に使用することができ、硬化体が高温に晒された場合においても、優れた耐熱性を発揮し、急激な温度上昇を効果的に抑制することができる。 The cured body of the present invention can be used for parts such as walls, roofs, floors, ceilings, columns, beams, etc., and exhibits excellent heat resistance even when the cured body is exposed to high temperatures, Temperature rise can be effectively suppressed.
以下に実施例を示し、本発明の特徴をより明確にする。 Examples are given below to clarify the features of the present invention.
原料としては以下のものを使用した。
・ポルトランドセメント
・膨張パーライト：かさ比重０．０７
・ヒル石：かさ比重０．１２
・酸化チタン１：平均粒子径１μｍ
・酸化チタン２：平均粒子径０．３μｍ
・酸化チタン３：平均粒子径０．１μｍ
・水酸化アルミニウム１：平均粒子径６μｍ
・水酸化アルミニウム２：平均粒子径５０μｍ
・珪灰石：平均繊維長３００μｍ、融点１５４０℃、アスペクト比約３０
・ガラス繊維：平均繊維長１２００μｍ、融点（軟化点）約７３０〜９５０℃、アスペクト比約２００
・パルプ繊維：平均繊維長２０００μｍ、アスペクト比５０
・メチルセルロース
・酢酸ビニル系エマルション
The following were used as raw materials.
・ Portland cement ・ Expanded perlite: Bulk specific gravity 0.07
・ Hill stone: Bulk specific gravity 0.12
・ Titanium oxide 1: average particle size 1μm
・ Titanium oxide 2: Average particle size 0.3 μm
・ Titanium oxide 3: Average particle size 0.1 μm
Aluminum hydroxide 1: average particle size 6μm
Aluminum hydroxide 2: Average particle size 50 μm
Wollastonite: average fiber length of 300 μm, melting point of 1540 ° C., aspect ratio of about 30
Glass fiber: average fiber length of 1200 μm, melting point (softening point) of about 730 to 950 ° C., aspect ratio of about 200
Pulp fiber: Average fiber length 2000 μm, aspect ratio 50
・ Methylcellulose-vinyl acetate emulsion
（試験例１）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン１を５０重量部、水酸化アルミニウム１を６５０重量部、珪灰石を５０重量部、酢酸ビニル系エマルションを２５重量部、メチルセルロース５重量部、及び水を１０００重量部加えて、十分に攪拌してスラリー状の硬化体組成物１を作製した。
硬化体組成物１を１００×１００×５ｍｍの型枠に充填し、２３℃下で７日間乾燥後、脱型し硬化体１を得た。
得られた硬化体１において以下の耐熱性試験を行った結果、Ａ判定であった。
(Test Example 1)
60 parts by weight of expanded perlite, 60 parts by weight of leechite, 50 parts by weight of titanium oxide 1, 650 parts by weight of aluminum hydroxide, 50 parts by weight of wollastonite, 100 parts by weight of vinyl acetate based on 100 parts by weight of Portland cement 25 parts by weight of the emulsion, 5 parts by weight of methylcellulose, and 1000 parts by weight of water were added and stirred sufficiently to prepare a slurry-like cured product composition 1.
The cured product composition 1 was filled in a 100 × 100 × 5 mm mold, dried at 23 ° C. for 7 days, and then demolded to obtain a cured product 1.
As a result of conducting the following heat resistance test on the obtained cured body 1, it was judged as A.
・耐熱性試験
硬化体１から高さ２５ｍｍの位置に６００℃のヒーターを設置して、硬化体１を１０分間加熱した後、試験体の裏面温度を測定した。試験結果を、表１に示す。評価基準は、以下の通りである。
Ａ：裏面温度４００℃未満
Ｂ：裏面温度４００℃以上４２５℃未満
Ｃ：裏面温度４２５℃以上４５０℃未満
Ｄ：裏面温度４５０℃以上
-Heat resistance test The heater of 600 degreeC was installed in the position of 25 mm in height from the hardening body 1, and after heating the hardening body 1 for 10 minutes, the back surface temperature of the test body was measured. The test results are shown in Table 1. The evaluation criteria are as follows.
A: Back surface temperature of less than 400 ° C. B: Back surface temperature of 400 ° C. or more and less than 425 ° C. C: Back surface temperature of 425 ° C. or more and less than 450 ° C. D: Back surface temperature of 450 ° C. or more
（試験例２）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン１を５０重量部、水酸化アルミニウム１を６５０重量部、珪灰石を２５重量部、ガラス繊維を２５重量部、酢酸ビニル系エマルションを２５重量部、メチルセルロース５重量部、及び水を１０００重量部加えて、十分に攪拌してスラリー状の硬化体組成物２を作製した。
試験例１と同様にして硬化体２を作製した。得られた硬化体２において、試験例１と同様に耐熱性試験を実施した結果、Ａ判定であった。
(Test Example 2)
60 parts by weight of expanded perlite, 60 parts by weight of leechite, 50 parts by weight of titanium oxide 1, 650 parts by weight of aluminum hydroxide 1, 25 parts by weight of wollastonite, and glass fiber with respect to 100 parts by weight of Portland cement 25 parts by weight, 25 parts by weight of a vinyl acetate emulsion, 5 parts by weight of methylcellulose, and 1000 parts by weight of water were added and sufficiently stirred to prepare a slurry-like cured product composition 2.
A cured body 2 was produced in the same manner as in Test Example 1. The obtained cured product 2 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was judged as A.
（試験例３）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン１を１０重量部、水酸化アルミニウム１を７００重量部、珪灰石を２５重量部、ガラス繊維を１５重量部、酢酸ビニル系エマルションを２５重量部、メチルセルロース５重量部、及び水を１０００重量部加えて、十分に攪拌してスラリー状の硬化体組成物３を作製した。
試験例１と同様にして硬化体３を作製した。得られた硬化体３において、試験例１と同様に耐熱性試験を実施した結果、Ａ判定であった。
(Test Example 3)
60 parts by weight of expanded perlite, 60 parts by weight of leechite, 10 parts by weight of titanium oxide 1, 700 parts by weight of aluminum hydroxide 1, 25 parts by weight of wollastonite, and glass fiber with respect to 100 parts by weight of Portland cement 15 parts by weight, 25 parts by weight of a vinyl acetate emulsion, 5 parts by weight of methylcellulose, and 1000 parts by weight of water were added and sufficiently stirred to prepare a slurry-like cured product composition 3.
A cured body 3 was produced in the same manner as in Test Example 1. The obtained cured product 3 was subjected to a heat resistance test in the same manner as in Test Example 1. As a result, it was determined as A.
（試験例４）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン１を３５０重量部、水酸化アルミニウム１を３５０重量部、珪灰石を１０重量部、ガラス繊維を１５重量部、酢酸ビニル系エマルションを５０重量部、メチルセルロース５重量部、及び水を１０００重量部加えて、十分に攪拌してスラリー状の硬化体組成物４を作製した。
試験例１と同様にして硬化体４を作製した。得られた硬化体４において、試験例１と同様に耐熱性試験を実施した結果、Ａ判定であった。
(Test Example 4)
60 parts by weight of expanded perlite, 60 parts by weight of leechite, 350 parts by weight of titanium oxide 1, 350 parts by weight of aluminum hydroxide 1, 10 parts by weight of wollastonite, and glass fiber with respect to 100 parts by weight of Portland cement 15 parts by weight, 50 parts by weight of a vinyl acetate emulsion, 5 parts by weight of methylcellulose, and 1000 parts by weight of water were added and sufficiently stirred to prepare a slurry-like cured body composition 4.
A cured body 4 was produced in the same manner as in Test Example 1. The obtained cured product 4 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was A.
（試験例５）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン２を５０重量部、水酸化アルミニウム１を６５０重量部、珪灰石を２５重量部、ガラス繊維を２５重量部、酢酸ビニル系エマルションを２５重量部、メチルセルロース５重量部に適量の水を加えて、十分に攪拌してスラリー状の硬化体組成物５を作製した。
試験例１と同様にして硬化体５を作製した。得られた硬化体５において、試験例１と同様に耐熱性試験を実施した結果、Ｂ判定であった。
(Test Example 5)
60 parts by weight of expanded perlite, 60 parts by weight of leechite, 50 parts by weight of titanium oxide 2, 650 parts by weight of aluminum hydroxide 1, 25 parts by weight of wollastonite, and glass fiber with respect to 100 parts by weight of Portland cement An appropriate amount of water was added to 25 parts by weight, 25 parts by weight of a vinyl acetate emulsion, and 5 parts by weight of methylcellulose, and stirred sufficiently to prepare a slurry-like cured body composition 5.
A cured body 5 was produced in the same manner as in Test Example 1. The obtained cured product 5 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was B.
（試験例６）
ポルトランドセメント１００重量部に対して、膨張パーライトを１００重量部、ヒル石を１００重量部、酸化チタン１を１５重量部、水酸化アルミニウム１を１５０重量部、珪灰石を１３重量部、ガラス繊維を８重量部、酢酸ビニル系エマルションを１３重量部、メチルセルロース８重量部、及び水を５００重量部加えて、十分に攪拌してスラリー状の硬化体組成物６を作製した。
試験例１と同様にして硬化体６を作製した。得られた硬化体６において、試験例１と同様に耐熱性試験を実施した結果、Ｃ判定であった。
(Test Example 6)
100 parts by weight of Portland cement, 100 parts by weight of expanded perlite, 100 parts by weight of leechite, 15 parts by weight of titanium oxide 1, 150 parts by weight of aluminum hydroxide 1, 13 parts by weight of wollastonite, and glass fiber 8 parts by weight, 13 parts by weight of a vinyl acetate emulsion, 8 parts by weight of methylcellulose, and 500 parts by weight of water were added and stirred sufficiently to prepare a slurry-like cured product composition 6.
A cured body 6 was produced in the same manner as in Test Example 1. The obtained cured product 6 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was C determination.
（試験例７）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン３を５０重量部、水酸化アルミニウム１を６５０重量部、珪灰石を２５重量部、ガラス繊維を２５重量部、酢酸ビニル系エマルションを２５重量部、メチルセルロース５重量部、及び水を１０００重量部加えて、十分に攪拌してスラリー状の硬化体組成物７を作製した。
試験例１と同様にして硬化体７を作製した。得られた硬化体７において、試験例１と同様に耐熱性試験を実施した結果、Ｄ判定であった。
(Test Example 7)
60 parts by weight of expanded pearlite, 60 parts by weight of leechite, 50 parts by weight of titanium oxide, 650 parts by weight of aluminum hydroxide, 25 parts by weight of wollastonite, and glass fiber with respect to 100 parts by weight of Portland cement 25 parts by weight, 25 parts by weight of a vinyl acetate emulsion, 5 parts by weight of methylcellulose, and 1000 parts by weight of water were added and stirred sufficiently to prepare a slurry-like cured product composition 7.
A cured body 7 was produced in the same manner as in Test Example 1. The obtained cured product 7 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was D determination.
（試験例８）
ポルトランドセメント１００重量部に対して、膨張パーライトを１００重量部、ヒル石を１００重量部、酸化チタン３を１５重量部、水酸化アルミニウム２を１５０重量部、珪灰石を１２．５重量部、ガラス繊維を７．５重量部、酢酸ビニル系エマルションを１２．５重量部、メチルセルロース２．５重量部、及び水を５００重量部加えて、十分に攪拌してスラリー状の硬化体組成物８を作製した。
試験例１と同様にして硬化体８を作製した。得られた硬化体７において、試験例１と同様に耐熱性試験を実施した結果、Ｄ判定であった。
(Test Example 8)
100 parts by weight of Portland cement, 100 parts by weight of expanded perlite, 100 parts by weight of leechite, 15 parts by weight of titanium oxide 3, 150 parts by weight of aluminum hydroxide 2, 12.5 parts by weight of wollastonite, glass Add 7.5 parts by weight of fiber, 12.5 parts by weight of vinyl acetate emulsion, 2.5 parts by weight of methylcellulose, and 500 parts by weight of water, and stir well to prepare slurry-like cured body composition 8 did.
A cured body 8 was produced in the same manner as in Test Example 1. The obtained cured product 7 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was D determination.
（試験例９）
ポルトランドセメント１００重量部に対して、膨張パーライトを６０重量部、ヒル石を６０重量部、酸化チタン１を５０重量部、水酸化アルミニウム１を６５０重量部、ガラス繊維を２５重量部、パルプ繊維を２５重量部、酢酸ビニル系エマルションを２５重量部、メチルセルロース５重量部、及び水を１０００重量部加えて、十分に攪拌してスラリー状の硬化体組成物８を作製した。
得られた硬化体８において、試験例１と同様に耐熱性試験を実施した結果、Ｄ判定であった。また、耐熱性試験後の硬化体は、亀裂が生じていた。
(Test Example 9)
60 parts by weight of expanded perlite, 60 parts by weight of leechite, 50 parts by weight of titanium oxide 1, 650 parts by weight of aluminum hydroxide 1, 25 parts by weight of glass fiber, and pulp fiber to 100 parts by weight of Portland cement 25 parts by weight, 25 parts by weight of a vinyl acetate emulsion, 5 parts by weight of methyl cellulose, and 1000 parts by weight of water were added and stirred sufficiently to prepare a slurry-like cured product composition 8.
The obtained cured product 8 was subjected to a heat resistance test in the same manner as in Test Example 1, and as a result, was D. Further, the cured body after the heat resistance test had cracks.
Claims (1)
上記（Ｃ）が、平均粒子径０．２μｍ以上２μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−１）、並びに平均粒子径２μｍ超１０μｍ以下の金属酸化物及び／または金属酸化物の前駆体（Ｃ−２）を含むことを特徴とする硬化体。
(A) 10 to 300 parts by weight of a lightweight aggregate with respect to 100 parts by weight of a hydraulic inorganic binder, (C) at least two kinds of metal oxides and / or metal oxide precursors 100 to 1200 Parts by weight, (D) 5 to 100 parts by weight of a fibrous material having a melting point of 1000 ° C. or higher,
The above (C) is a metal oxide and / or metal oxide precursor (C-1) having an average particle size of 0.2 μm or more and 2 μm or less, and a metal oxide and / or metal having an average particle size of more than 2 μm and 10 μm or less. A cured product comprising an oxide precursor (C-2).
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| JPH0489342A (en) * | 1990-07-31 | 1992-03-23 | Sekisui Chem Co Ltd | Cement composition to be extrusion-molded |
| JPH04295076A (en) * | 1991-03-23 | 1992-10-20 | Kikusui Kagaku Kogyo Kk | Refractory coating composition |
| JPH08337456A (en) * | 1995-06-14 | 1996-12-24 | Mitsubishi Chem Corp | Flame retarding hydraulic composition and its molded body |
| JP2000016843A (en) * | 1998-07-02 | 2000-01-18 | Denki Kagaku Kogyo Kk | Alumina cement, alumina cement composition, its amorphous refractory, and spay application using the same |
| JP2003287374A (en) * | 2002-03-27 | 2003-10-10 | Kurosaki Harima Corp | Spraying method of heat insulating monolithic refractory |
| JP2004196602A (en) * | 2002-12-19 | 2004-07-15 | Toray Amenity & Civil Engineering Co Ltd | Lightweight inorganic molding excellent in fire resistance and method for manufacturing the same |
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- 2009-11-28 JP JP2009270867A patent/JP5374334B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0431348A (en) * | 1990-05-24 | 1992-02-03 | Nippon Steel Chem Co Ltd | Spraying material of rock wool composition |
| JPH0465340A (en) * | 1990-07-04 | 1992-03-02 | Shinagawa Refract Co Ltd | Filler for preventing fire from spreading |
| JPH0489342A (en) * | 1990-07-31 | 1992-03-23 | Sekisui Chem Co Ltd | Cement composition to be extrusion-molded |
| JPH04295076A (en) * | 1991-03-23 | 1992-10-20 | Kikusui Kagaku Kogyo Kk | Refractory coating composition |
| JPH08337456A (en) * | 1995-06-14 | 1996-12-24 | Mitsubishi Chem Corp | Flame retarding hydraulic composition and its molded body |
| JP2000016843A (en) * | 1998-07-02 | 2000-01-18 | Denki Kagaku Kogyo Kk | Alumina cement, alumina cement composition, its amorphous refractory, and spay application using the same |
| JP2003287374A (en) * | 2002-03-27 | 2003-10-10 | Kurosaki Harima Corp | Spraying method of heat insulating monolithic refractory |
| JP2004196602A (en) * | 2002-12-19 | 2004-07-15 | Toray Amenity & Civil Engineering Co Ltd | Lightweight inorganic molding excellent in fire resistance and method for manufacturing the same |
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