JPH0873283A - Foamable inorganic composition - Google Patents
Foamable inorganic compositionInfo
- Publication number
- JPH0873283A JPH0873283A JP21360294A JP21360294A JPH0873283A JP H0873283 A JPH0873283 A JP H0873283A JP 21360294 A JP21360294 A JP 21360294A JP 21360294 A JP21360294 A JP 21360294A JP H0873283 A JPH0873283 A JP H0873283A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- weight
- inorganic
- parts
- clay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B28/24—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は発泡性無機質組成物に関
する。FIELD OF THE INVENTION The present invention relates to a foamable inorganic composition.
【０００２】[0002]
【従来の技術】従来、アルカリの存在下で熱により硬
化、発泡する無機質組成物については、幾つか提案され
ている。例えば、（ａ）発泡剤を用いることなく加熱下
において水蒸気の発生をもって発泡体を得る方法、ある
いは（ｂ）金属粉体を加えてガスを発生させ発泡体を得
る方法などが知られていた。たとえば（ｂ）の方法とし
ては、特開昭５７−７７０６２号公報には（Ａ）水可溶
性アルカリ珪酸塩、（Ｂ）金属系発泡剤、（Ｃ）フライ
アッシュまたは高炉鉱滓及び（Ｄ）水を有効成分として
なる発泡性を有する無機質組成物が記載されている。2. Description of the Related Art Heretofore, there have been proposed some inorganic compositions which are cured and foamed by heat in the presence of an alkali. For example, (a) a method of obtaining a foam by generating steam under heating without using a foaming agent, or (b) a method of adding a metal powder to generate a gas to obtain a foam has been known. For example, as a method of (b), JP-A-57-77062 discloses that (A) water-soluble alkali silicate, (B) metal-based foaming agent, (C) fly ash or blast furnace slag and (D) water. An inorganic composition having foamability as an active ingredient is described.
【０００３】しかし、上記の組成物を用いて得られた発
泡体は気泡の均一性に欠け、耐水性に劣り、低強度で低
倍率の発泡体しか得られず、さらに乾燥時に熱収縮が発
生し、クラックが発生するなどの問題があった。However, the foam obtained by using the above-mentioned composition lacks the uniformity of cells, is inferior in water resistance, and is only a foam having a low strength and a low magnification, and further, heat shrinkage occurs during drying. However, there were problems such as cracks.
【発明が解決しようとする課題】本発明は上記の課題を
解決し、気泡の均一性、耐水性に優れ、高強度で低比重
でありながら熱収縮率の小さい発泡体を得ることのでき
る発泡性無機質組成物を提供することにある。DISCLOSURE OF THE INVENTION The present invention solves the above problems and provides a foam which is excellent in cell uniformity, water resistance, high strength, low specific gravity and a small heat shrinkage. The purpose of the present invention is to provide a porous inorganic composition.
【０００４】[0004]
【０００５】本発明において使用されるフライアッシュ
とはＪＩＳ Ａ ６２０１に規定される、微粉炭燃焼ボ
イラーから集塵器で採取する微小な灰の粒子をいい、シ
リカ４５％以上、湿分１％以下、強熱減量５％以下、比
重１．９５以上、比表面積２，７００ｃｍ2 ／ｇ以上、
４４μｍ標準篩を７５％以上が通過するものである。The fly ash used in the present invention means fine ash particles collected by a dust collector from a pulverized coal combustion boiler, which is defined in JIS A 6201, and has a silica content of 45% or more and a moisture content of 1% or less. , Ignition loss 5% or less, specific gravity 1.95 or more, specific surface area 2,700 cm 2 / g or more,
75% or more passes through a 44 μm standard sieve.
【０００６】本発明において使用される（Ａ）成分のう
ち、フライアッシュのうち、粒径が１０μｍ以下であ
るものを８０重量％以上含有する反応性無機質粉体と
は、上記フライアッシュをふるい分けや風力や静電気等
を利用して１０μｍを超える粒子を分離除去して得られ
る。猶、上記加工に際して上記粉砕や分級、分離の方法
は併用されてもよい。Of the component (A) used in the present invention, fly ash having a particle size of 10 μm or less and reactive inorganic powder containing 80% by weight or more is used as the above-mentioned fly ash. It can be obtained by separating and removing particles larger than 10 μm by using wind force, static electricity or the like. In the above processing, the methods of crushing, classifying and separating may be used together.
【０００７】粒径１０μｍ以下の反応性無機質粉末の量
は、少なくなるとアルカリ金属珪酸塩との反応性が低下
し、発泡性無機質組成物を発泡させて得られる発泡体は
発泡過程における破泡によって、気泡の均一性を欠き、
発泡倍率も低いものしか得られない。又、反応性の低下
によって、上記組成物の硬化も不良となり、得られる発
泡体の強度も脆弱なものとなってしまうので粒径１０μ
ｍ以下の反応性無機質粉末の量は８０重量％以上に限定
される。When the amount of the reactive inorganic powder having a particle diameter of 10 μm or less decreases, the reactivity with the alkali metal silicate decreases, and the foam obtained by foaming the foamable inorganic composition is liable to be broken by foam breaking in the foaming process. , Lacks uniformity of bubbles,
Only those with a low expansion ratio can be obtained. Further, due to the decrease in reactivity, the curing of the above composition also becomes poor, and the strength of the resulting foam becomes weak, so that the particle size is 10 μm.
The amount of reactive inorganic powder of m or less is limited to 80% by weight or more.
【０００８】本発明において使用される（Ａ）成分のう
ち、において、４００〜１，０００℃で焼成したフラ
イアッシュを使用する。フライアッシュは一般に黒色で
あるので、着色を必要とする用途に使用する場合、４０
０℃以上の温度で焼成して脱色するが、１，０００℃を
超える温度で焼成すると、上記アルカリ金属珪酸塩との
反応性が低下するので、上記範囲の温度で焼成すること
が好ましい。Among the components (A) used in the present invention, fly ash fired at 400 to 1,000 ° C. is used. Fly ash is generally black, so if you use it in applications that require coloring,
Although calcination is performed at a temperature of 0 ° C. or higher for decolorization, baking at a temperature of more than 1,000 ° C. lowers the reactivity with the alkali metal silicate, so calcination at a temperature in the above range is preferable.
【０００９】本発明において使用される（Ａ）成分のう
ち、及びにおいて、フライアッシュ及び粘土を溶融
し、気体中に噴霧することによって反応性無機質粉体を
得ているが、気体中に噴霧する方法として、セラミック
コーティングに適用される溶射技術が応用される。この
溶射技術は、好ましくは上記フライアッシュ及び粘土が
２，０００〜１６，０００℃の温度で溶融され、３０〜
８００ｍ／秒の速度で噴霧されるものであり、具体的に
は、プラズマ溶射法、高エネルギーガス溶射法、アーク
溶射法等が採用される。Of the component (A) used in the present invention, in and in, fly ash and clay are melted and sprayed in a gas to obtain a reactive inorganic powder, which is sprayed in a gas. As a method, thermal spraying techniques applied to ceramic coatings are applied. This spraying technique is preferably carried out by melting the fly ash and clay at a temperature of 2,000 to 16,000 ° C.
It is sprayed at a speed of 800 m / sec, and specifically, a plasma spraying method, a high energy gas spraying method, an arc spraying method or the like is adopted.
【００１０】上記溶射技術によって得られる反応性無機
質粉体は、一般にその比表面積が０．１〜１００ｍ2 ／
ｇ、好ましくは０．１〜６０ｍ2 ／ｇにコントロールさ
れる。The reactive inorganic powder obtained by the above thermal spraying technique generally has a specific surface area of 0.1 to 100 m 2 /
g, preferably 0.1 to 60 m 2 / g.
【００１１】本発明において使用される（Ａ）成分のう
ち、乃至の粘土は、化学組成として、ＳｉＯ2 ５〜
８５重量％、Ａｌ2 Ｏ3 ９０〜１０重量％を含有するこ
とが好ましい。このような粘土としては、例えば、カオ
リン鉱物（カオリナイト、ディッカナイト、ナクライ
ト、ハロイサイト等）、雲母粘土鉱物（白雲母、イライ
ト、フェンジャイト、海縁石、セラドナイト、パラゴナ
イト、ブランマライト等）、スメクタイト（モンモリロ
ナイト、バイデイト、ノントロライト、サボナイト、ソ
ーコナイト等）、緑泥岩、パイロフィライト、タルク、
バーミキュライト、ろう岩、ばん土頁岩等が挙げられる
が、組成、粒度等が適当であれば、これらに限定される
ものではない。Among the components (A) used in the present invention, the clay is composed of SiO 2 5 to 5 as a chemical composition.
It is preferable to contain 85% by weight and 90 to 10% by weight of Al 2 O 3 . Examples of such clays include kaolin minerals (kaolinite, dickanite, nacrite, halloysite, etc.), mica clay minerals (muscovite, illite, phengite, seacoast, celadonite, paragonite, blancmalite, etc.), smectites ( Montmorillonite, by date, nontrolite, savonite, sauconite, etc.), chlorite, pyrophyllite, talc,
Examples thereof include vermiculite, wax rock, and shale shale, but are not limited to these as long as the composition and particle size are appropriate.
【００１２】本発明において使用される（Ａ）成分のう
ち、乃至の粘土及びメタカオリンに０．１〜３０ｋ
ｗｈ／ｋｇの機械的エネルギーを作用させて反応性無機
質粉体を得ているが、本発明において、機械的エネルギ
ーとは圧縮力、剪断力、衝撃力等を指し、これらは単独
で作用させてもよいし、２種以上を複合させてもよい。
これらを具体的に作用させる機器としては、例えば、ボ
ールミル、振動ミル、遊星ミル、媒体攪拌型ミル、ロー
ラミル、乳鉢、ジェット粉砕装置等が挙げられる。Among the components (A) used in the present invention, 0.1 to 30 k are contained in the clay and metakaolin.
The reactive inorganic powder is obtained by applying mechanical energy of wh / kg. In the present invention, mechanical energy refers to compressive force, shearing force, impact force, etc. Or two or more kinds may be combined.
Examples of equipment that causes these to work concretely include a ball mill, a vibration mill, a planetary mill, a medium stirring type mill, a roller mill, a mortar, and a jet pulverizer.
【００１３】上記乃至の粘土及びメタカオリンの粒
径は特に限定されないが、機械的エネルギーを有効に作
用させるには平均粒径が０．０１〜５００μｍが好まし
く、更に好ましくは０．１〜１００μｍである。The particle diameters of the above clay and metakaolin are not particularly limited, but the average particle diameter is preferably 0.01 to 500 μm, more preferably 0.1 to 100 μm in order to effectively apply mechanical energy. .
【００１４】上記及びの粘土に作用させる機械的エ
ネルギーが０．１ｋｗｈ／ｋｇ未満であると、アルカリ
金属珪酸塩との反応性が低下し、３０ｋｗｈ／ｋｇを超
えると、上記粉砕装置等への負荷が大きくなり、装置の
磨耗、損傷が増大し、上記粘土への不純物の混入等の問
題が発生するので、０．１〜３０ｋｗｈ／ｋｇに限定さ
れ、好ましくは１．０〜２６ｋｗｈ／ｋｇで作用させ
る。If the mechanical energy acting on the above clay is less than 0.1 kwh / kg, the reactivity with the alkali metal silicate is lowered, and if it exceeds 30 kwh / kg, the load on the crushing device is increased. Is increased, wear and damage of the device are increased, and problems such as mixing of impurities into the clay occur, so the amount is limited to 0.1 to 30 kwh / kg, preferably 1.0 to 26 kwh / kg Let
【００１５】又、上記のメタカオリンに作用させる機
械的エネルギーを０．１〜３０ｋｗｈ／ｋｇに限定して
いる理由も、上記及びの粘土の場合と同様である。The reason why the mechanical energy acting on the above metakaolin is limited to 0.1 to 30 kwh / kg is also the same as in the case of the above clay.
【００１６】本発明において機械的エネルギーを作用さ
せる際には、必要に応じて粉砕助剤が添加されてもよ
い。粉砕助剤とは、機械的エネルギーを作用させる際に
粘土乃至メタカオリンの粉体の装置内部への付着乃至は
著しい凝集を防ぐもので、例えば、メチルアルコール、
エチルアルコール等のアルコール類、トリエタノールア
ミン等のアルコールアミン類、ステアリン酸ナトリウ
ム、ステアリン酸カルシウムなどの金属石鹸類、アセト
ン蒸気等が挙げられる。これらは単独で使用されてもよ
いし、２種以上が併用されてもよい。When mechanical energy is applied in the present invention, a grinding aid may be added if necessary. The grinding aid is a material that prevents adhesion of the powder of clay or metakaolin to the inside of the apparatus or significant aggregation when mechanical energy is applied, such as methyl alcohol,
Examples thereof include alcohols such as ethyl alcohol, alcohol amines such as triethanolamine, metal soaps such as sodium stearate and calcium stearate, and acetone vapor. These may be used alone or in combination of two or more.
【００１７】又、本発明において使用される（Ａ）成分
のうち、の反応性無機質粉体は、粘土に上記機械的エ
ネルギーを作用させた後、更に、１００〜７５０℃に加
熱して得られるが、加熱する方法としては、特に限定さ
れるものではなく、熱風乾燥機、ロータリーキルン等従
来公知の任意の加熱装置が使用される。The reactive inorganic powder of the component (A) used in the present invention is obtained by applying the above mechanical energy to clay and then heating it to 100 to 750 ° C. However, the heating method is not particularly limited, and any conventionally known heating device such as a hot air dryer or a rotary kiln can be used.
【００１８】上記加熱温度が１００℃未満であると、発
泡性無機質組成物の発泡硬化後の成形体の機械的強度を
低下せしめ、７５０℃を超えると、上記反応性無機質粉
体の結晶化が促進され、アルカリ金属珪酸塩水溶液に対
する溶解性が低下するので、加熱温度は１００〜７５０
℃に限定され、好ましくは２００〜６００℃である。
又、加熱時間は短くなると、得られる成形体の機械的強
度を低下せしめ、長くなると、エネルギーコストが増大
するので、１分から５時間が好ましい。When the heating temperature is lower than 100 ° C., the mechanical strength of the molded body of the foamable inorganic composition after foaming and curing is lowered, and when it exceeds 750 ° C., the reactive inorganic powder is crystallized. The heating temperature is 100 to 750, because it is accelerated and the solubility in the alkali metal silicate aqueous solution is lowered.
The temperature is limited to 0 ° C, preferably 200 to 600 ° C.
Further, when the heating time is shortened, the mechanical strength of the obtained molded article is lowered, and when the heating time is prolonged, the energy cost is increased, so 1 minute to 5 hours is preferable.
【００１９】本発明において使用される無機質充填材
（Ｂ）としては、アルカリ金属珪酸塩水溶液に対して活
性が低いものが好ましく、例えば、珪砂、ジルコンサン
ド、結晶質アルミナ、岩石粉末、火山灰（シラス、抗火
石等）、炭酸カルシウム、珪石粉、けいそう土、雲母、
タルク、ワラストナイト、シリカヒューム等が挙げられ
るが、アルカリ金属珪酸塩水溶液に対して活性が低いも
のであれば、これらに限定されるものではない。The inorganic filler (B) used in the present invention preferably has a low activity with respect to an alkali metal silicate aqueous solution, and examples thereof include silica sand, zircon sand, crystalline alumina, rock powder, and volcanic ash (shirasu). , Anti-firestone, etc.), calcium carbonate, silica powder, diatomaceous earth, mica,
Examples thereof include talc, wollastonite, silica fume, and the like, but are not limited to these as long as they have a low activity with respect to an alkali metal silicate aqueous solution.
【００２０】上記無機質充填材（Ｂ）として、アルカリ
金属珪酸塩水溶液に対して活性が低いことが求められる
理由は、活性が高いと、アルカリ水溶液及びアルカリ金
属珪酸塩水溶液のゲル化が急速に進み、発泡性無機質組
成物の混合作業や成形作業が難しくなるからである。The reason why the inorganic filler (B) is required to have low activity with respect to the alkali metal silicate aqueous solution is that when the activity is high, gelation of the alkali aqueous solution and the alkali metal silicate aqueous solution proceeds rapidly. This is because the work of mixing and molding the foamable inorganic composition becomes difficult.
【００２１】本発明において使用される無機質充填材
（Ｂ）のうち、の粒状物であるときには、平均粒径が
小さくなるとアルカリ金属珪酸塩に溶解されやすくな
り、大きくなると熱収縮を抑えきれなくなるので０．０
１〜３０μｍに限定される。又、の針状、角状あるい
は柱状の形状を有するものであるときには、長軸方向の
長さは短くなると熱収縮を防ぐことが困難になり、長く
なると混練が困難になるので１〜２５０μｍであること
が好ましい。Among the inorganic fillers (B) used in the present invention, when it is a granular material, if the average particle diameter is small, it is easily dissolved in the alkali metal silicate, and if it is large, the thermal contraction cannot be suppressed. 0.0
It is limited to 1 to 30 μm. In the case of a needle-shaped, angular or columnar shape, if the length in the major axis direction becomes shorter, it becomes difficult to prevent heat shrinkage, and if it becomes longer, kneading becomes difficult. Preferably there is.
【００２２】本発明において使用される無機質充填材
（Ｂ）のうち、の無機質充填材の長軸径（ａ）と短軸
径（ｂ）の比（ａ／ｂ）は、５０／１を超える場合、成
形が困難となり、気泡が安定せず、不均一になったり、
破泡したりして発泡硬化後の成形体の機械的強度が低下
し、１．５／１未満の場合、得られる成形体の乾燥収
縮、熱収縮が大きく、成形体が歪んだり、亀裂を生じた
りするからである。Among the inorganic fillers (B) used in the present invention, the ratio (a / b) of the major axis diameter (a) and the minor axis diameter (b) of the inorganic filler exceeds 50/1. In this case, molding becomes difficult, bubbles are not stable, and it becomes uneven,
If the mechanical strength of the molded product after foaming and hardening decreases due to foam breakage, and is less than 1.5 / 1, the resulting molded product undergoes large drying shrinkage and heat shrinkage, causing distortion and cracking of the molded product. It will occur.
【００２３】上記の主な理由により、上記の無機質充
填材の長軸径（ａ）と短軸径（ｂ）の比（ａ／ｂ）は、
５０／１〜１．５／１に限定され、好ましくは３０／１
〜２／１、更に好ましくは２０／１〜３／１である。For the above-mentioned main reason, the ratio (a / b) of the major axis diameter (a) and the minor axis diameter (b) of the above-mentioned inorganic filler is
It is limited to 50/1 to 1.5 / 1, preferably 30/1
˜2 / 1, more preferably 20/1 to 3/1.
【００２４】上記無機質充填材（Ｂ）の配合量が、上記
（Ａ）成分の反応性無機質粉体１００重量部に対し２０
重量部未満の場合、発泡性無機質組成物の発泡硬化後の
成形体の乾燥収縮、熱収縮が大きく、８００重量部を超
えると、上記成形体の機械的強度を低下せしめるため、
２０〜８００重量部に限定されるが、本発明において使
用される無機質充填材（Ｂ）のうち、及びの無機質
充填材ともに、好ましくは３０〜６００重量部、更に好
ましくは４０〜４００重量部である。The content of the inorganic filler (B) is 20 with respect to 100 parts by weight of the reactive inorganic powder of the component (A).
If it is less than 1 part by weight, the drying shrinkage and heat shrinkage of the molded product after foaming and hardening of the expandable inorganic composition are large, and if it exceeds 800 parts by weight, the mechanical strength of the molded product is lowered.
Although limited to 20 to 800 parts by weight, of the inorganic filler (B) used in the present invention, and both of the inorganic fillers are preferably 30 to 600 parts by weight, more preferably 40 to 400 parts by weight. is there.
【００２５】本発明において使用される無機質充填材
（Ｂ）の及びは、上記の如くグループ毎にいずれか
一方のみを単独もしくは２種以上を混合して使用しても
よいが、上記及びを併用することもできる。この上
記及びを併用した場合、それぞれをグループ毎にい
ずれか一方のみを使用した場合よりも発泡硬化後の成形
体の機械的強度を改善する等の新たな効果を発揮する。
猶、上記及びの配合量は、合計で上記（Ａ）成分の
反応性無機質粉体１００重量部に対し、２０〜８００重
量部であり、好ましくは３０〜６００重量部、更に好ま
しくは４０〜４００重量部である。The inorganic filler (B) used in the present invention may be used alone or as a mixture of two or more of each of the groups as described above, but the above and are used together. You can also do it. When the above and the above are used in combination, new effects such as improving the mechanical strength of the molded body after foaming and curing are exhibited as compared with the case where only one of them is used for each group.
The total amount of the above and the above is 20 to 800 parts by weight, preferably 30 to 600 parts by weight, and more preferably 40 to 400 parts by weight, relative to 100 parts by weight of the reactive inorganic powder of the component (A). Parts by weight.
【００２６】上記無機質充填材（Ｂ）の及びの配合
割合は、の量が全無機質充填材量の６０重量％以下で
あることが熱収縮の改善に繋がり、上記新たな効果を発
揮するために必要である。Regarding the blending ratio of and of the inorganic filler (B), the fact that the amount of is not more than 60% by weight of the total amount of the inorganic filler leads to improvement of heat shrinkage and exerts the above new effect. is necessary.
【００２７】本発明において使用される過酸化水素は、
上記アルカリ金属珪酸塩水溶液と反応して酸素を発生す
るもので、過酸化水素の量は少なくなると低密度の発泡
体が得られず、また発泡時に温度があがらないので硬化
が遅くなりやすく、多くなると破泡が発生しやすくなる
ので上記（Ａ）成分の反応性無機質粉体１００重量部に
対して０．０１〜１０重量部に限定される。また過酸化
水素の使用は水溶液で添加されるのが好ましく水溶液濃
度は１〜３５重量％が好ましい。The hydrogen peroxide used in the present invention is
It reacts with the aqueous alkali metal silicate solution to generate oxygen. When the amount of hydrogen peroxide is small, a low-density foam cannot be obtained, and since the temperature does not rise during foaming, curing tends to be slow, If so, foam breakage easily occurs, so the amount is limited to 0.01 to 10 parts by weight with respect to 100 parts by weight of the reactive inorganic powder of the component (A). The hydrogen peroxide is preferably added in an aqueous solution, and the concentration of the aqueous solution is preferably 1 to 35% by weight.
【００２８】本発明に使用されるアルカリ金属珪酸塩
（Ｄ）とはＭ2 Ｏ・ｎＳｉＯ2 （Ｍ＝Ｋ、Ｎａ、Ｌｉか
ら選ばれる１種以上の金属）で表される珪酸塩であっ
て、ｎの値は小さくなると緻密な発泡体が得られず、大
きくなると水溶液の粘度が上昇し混合が困難になるので
０．０５〜８が好ましく、更に好ましくは０．５〜２．
５である。The alkali metal silicate (D) used in the present invention is a silicate represented by M 2 O.nSiO 2 (one or more kinds of metal selected from M = K, Na and Li). , N does not allow a dense foam to be obtained, while a larger value increases the viscosity of the aqueous solution and makes mixing difficult, so that it is preferably 0.05 to 8, and more preferably 0.5 to 2.
It is 5.
【００２９】アルカリ金属珪酸塩（Ｄ）は水溶液で添加
されるのが好ましく、水溶液濃度は特に限定されない
が、薄くなると上記（Ａ）成分の反応性無機質粉末との
反応性が低下し、濃くなると固形分が生じやすくなるの
で１０〜６０重量％が好ましい。The alkali metal silicate (D) is preferably added in an aqueous solution, and the concentration of the aqueous solution is not particularly limited, but when the concentration becomes thin, the reactivity with the reactive inorganic powder of the component (A) decreases, and when it becomes thick, the concentration increases. Solid content is likely to occur, so 10 to 60% by weight is preferable.
【００３０】上記アルカリ金属珪酸塩水溶液はアルカリ
金属珪酸塩をそのまま加圧、加熱下で水に溶解してもよ
いが、アルカリ金属水酸化物水溶液に珪砂、珪石粉など
のＳｉＯ2 成分をｎが所定の量となるように加圧、加熱
下で溶解してもよい。上記アルカリ金属珪酸塩の量は、
少なくなると硬化が十分になされず、多くなると得られ
る発泡体の耐水性が低下するので上記（Ａ）成分の反応
性無機質粉体１００重量部に対して０．２〜４５０重量
部に限定され、好ましくは１０〜３５０重量部、更に好
ましくは２０〜２５０重量部である。The alkali metal silicate aqueous solution may be prepared by dissolving the alkali metal silicate in water as it is under pressure and heating. However, the alkali metal hydroxide aqueous solution may contain SiO 2 components such as silica sand and silica stone powder as n. You may melt | dissolve under pressure and heating so that it may become a predetermined amount. The amount of alkali metal silicate is
If the amount is too small, the curing will not be sufficient, and if the amount is too large, the water resistance of the resulting foam will be reduced. It is preferably 10 to 350 parts by weight, more preferably 20 to 250 parts by weight.
【００３１】本発明で使用される水（Ｅ）は、独立して
添加されてもよいが、前記する如く上記アルカリ金属水
酸化物水溶液として添加されるのがよい。又、水（Ｅ）
の添加量は、上記（Ａ）成分の反応性無機質粉体１００
重量部に対して３５重量部未満であると、発泡性無機質
組成物を十分に硬化せず、また、破泡が発生しやすくな
り、１，５００重量部を超えると、得られる発泡体の強
度が低下しやすくなるので上記（Ａ）成分の反応性無機
質粉体１００重量部に対して３５〜１５００重量部に限
定され、好ましくは４５〜１，０００重量部、更に好ま
しくは５０〜５００重量部である。The water (E) used in the present invention may be added independently, but as described above, it is preferably added as the above-mentioned alkali metal hydroxide aqueous solution. Also, water (E)
The amount of addition of 100 is the reactive inorganic powder 100 of the component (A).
If the amount is less than 35 parts by weight, the expandable inorganic composition will not be sufficiently cured and foam breakage will easily occur. If the amount is more than 1,500 parts by weight, the strength of the resulting foam will be increased. Is easily reduced, the amount is limited to 35 to 1500 parts by weight, preferably 45 to 1,000 parts by weight, more preferably 50 to 500 parts by weight, relative to 100 parts by weight of the reactive inorganic powder of the component (A). Is.
【００３２】本発明において必要に応じて発泡助剤が添
加されてもよい。発泡助剤は発泡を均一に生じさせるも
のなら特に限定されず、たとえばステアリン酸亜鉛、ス
テアリン酸カルシウム、パルミチン酸亜鉛等の脂肪酸金
属塩、シリカゲル、ゼオライト、活性炭、アルミナ粉末
等の多孔質粉体などがあげられる。これらは単独で使用
されてもよいし、２種類以上併用されてもよい。In the present invention, a foaming aid may be added if necessary. The foaming aid is not particularly limited as long as it uniformly causes foaming, and examples thereof include fatty acid metal salts such as zinc stearate, calcium stearate, zinc palmitate, silica gel, zeolite, activated carbon, and porous powder such as alumina powder. can give. These may be used alone or in combination of two or more.
【００３３】上記発泡助剤の量は、多くなると発泡性無
機質組成物の粘度が大きくなり、発泡時破泡が発生しや
すく、安定な発泡体が得られないので、上記（Ａ）成分
の反応性無機質粉体１００重量部に対して１０重量部以
下が好ましい。When the amount of the foaming aid is large, the viscosity of the foamable inorganic composition becomes large, foaming is likely to occur during foaming, and a stable foam cannot be obtained. It is preferably 10 parts by weight or less with respect to 100 parts by weight of the hydrophilic inorganic powder.
【００３４】本発明においてさらに必要に応じて補強繊
維が添加されてもよい。補強繊維は、成形体に付与した
い性能に応じ任意のものが使用でき、例えば、ビニロン
繊維、セルロース繊維、ポリアミド繊維、ポリエステル
繊維、ポリプロピレン繊維、カーボン繊維、アラミド繊
維、ガラス繊維、チタン酸カリウム繊維、鋼繊維等が使
用できる。上記補強繊維の繊維径は、細くなると混合時
に再凝集し、交絡によりファイバーボールが形成されや
すくなり、最終的に得られる発泡体の強度はそれ以上改
善されず、太くなるか又は短くなると引張強度向上など
の補強効果が小さく、又、長くなると繊維の分散性及び
配向性が低下するので、繊維径１〜５００μｍ、繊維長
１〜１５ｍｍが好ましい。上記補強繊維の添加量は多く
なると繊維の分散性が低下するので、上記（Ａ）成分の
反応性無機質粉体１００重量部に対し、１０重量部以下
が好ましい。In the present invention, reinforcing fibers may be further added if necessary. Reinforcement fiber, any one can be used depending on the performance desired to impart to the molded body, for example, vinylon fiber, cellulose fiber, polyamide fiber, polyester fiber, polypropylene fiber, carbon fiber, aramid fiber, glass fiber, potassium titanate fiber, Steel fibers can be used. The fiber diameter of the reinforcing fiber is reaggregated during mixing when it becomes thin, fiber balls are easily formed by entanglement, the strength of the finally obtained foam is not further improved, and when it becomes thicker or shorter, the tensile strength increases. Since the reinforcing effect such as improvement is small and the dispersibility and the orientation of the fiber are reduced when it is long, the fiber diameter is preferably 1 to 500 μm and the fiber length is 1 to 15 mm. Since the dispersibility of the fibers decreases as the amount of the reinforcing fibers added increases, it is preferably 10 parts by weight or less with respect to 100 parts by weight of the reactive inorganic powder of the component (A).
【００３５】本発明の発泡性無機質組成物は、更に発泡
体軽量化図る目的でシリカバルーン、パーライト、フラ
イアッシュバルーン、シラスバルーン、ガラスバルー
ン、発泡焼成粘土等の無機質発泡体、フェノール樹脂、
ウレタン樹脂、ポリエチレン、ポリスチレン等の有機質
発泡体、塩化ビニリデンバルーン等が添加されてもよ
い。これらは単独で添加されてもよいし、２種類以上併
用されてもよい。The expandable inorganic composition of the present invention comprises an inorganic foam such as silica balloon, perlite, fly ash balloon, shirasu balloon, glass balloon and foamed clay, a phenolic resin, for the purpose of further reducing the weight of the foam.
Urethane resins, organic foams such as polyethylene and polystyrene, vinylidene chloride balloons and the like may be added. These may be added alone or in combination of two or more.
【００３６】本発明の組成物から発泡体を得るには、ま
ず上記アルカリ金属珪酸塩（Ｄ）を加圧、加熱下で水
（Ｅ）に溶解し、反応性無機質粉体（Ａ）、無機質充填
材（Ｂ）及び必要に応じて残部の水（Ｅ）、発泡助剤、
補強繊維を混合し、ペースト状とした後、過酸化水素
（Ｃ）水溶液を添加し、注型、押圧成形、押出成形など
従来公知の方法により所望の形に発泡させて賦形し、硬
化させる等の方法が使用できる。In order to obtain a foam from the composition of the present invention, first, the alkali metal silicate (D) is dissolved in water (E) under pressure and heating to prepare a reactive inorganic powder (A) and an inorganic substance. Filler (B) and, if necessary, the balance water (E), foaming aid,
After mixing the reinforcing fibers to form a paste, an aqueous solution of hydrogen peroxide (C) is added, and the mixture is foamed into a desired shape by a conventionally known method such as casting, press molding, extrusion molding, and then cured. Etc. can be used.
【００３７】上記硬化温度は常温でもよいが、５０〜１
１０℃で３０分間〜８時間硬化させることにより、硬化
反応を促進でき、機械的物性を向上することができる。The curing temperature may be room temperature, but it is 50 to 1
By curing at 10 ° C. for 30 minutes to 8 hours, the curing reaction can be promoted and the mechanical properties can be improved.
【００３８】[0038]
【実施例】本発明を実施例をもって更に詳しく説明す
る。EXAMPLES The present invention will be described in more detail by way of examples.
【００３９】反応性無機質粉体１、２の作製 フライアッシュ（関電化工社製、平均粒径２０μｍ；Ｊ
ＩＳ Ａ ６２０１に準ずる）を分級機（日清エンジニ
アリング社製、型式；ＴＣ−１５）により分級し、粒径
が１０μｍ以下の粉体を１００重量％含有する反応性無
機質粉体１（１０重量％）と、粒径が１０μｍを超える
粉末を１００重量％含有する反応性無機質粉体２（９０
重量％）とを得た。Preparation of Reactive Inorganic Powders 1 and 2 Fly ash (manufactured by KANDENKA CORPORATION, average particle size 20 μm; J
A reactive inorganic powder 1 (10% by weight) containing 100% by weight of a powder having a particle size of 10 μm or less is obtained by classifying an IS A 6201) by a classifier (manufactured by Nisshin Engineering Co., Ltd., model: TC-15). ) And 100% by weight of powder having a particle size of more than 10 μm.
% By weight).
【００４０】反応性無機質粉体３の作製 上記反応性無機質粉体１を６００℃の温度にて焼成し、
粒径が１０μｍ以下の反応性無機質粉体３を得た。Preparation of Reactive Inorganic Powder 3 The above reactive inorganic powder 1 was fired at a temperature of 600 ° C.,
Reactive inorganic powder 3 having a particle size of 10 μm or less was obtained.
【００４１】反応性無機質粉体４の作製 フライアッシュ（関電化工社製、平均粒径２０μｍ；Ｊ
ＩＳ Ａ ６２０１に準ずる）を３，０００℃で溶融
後、８０ｍ／秒の速度で大気中に噴霧して平均粒径５μ
ｍ、比表面積９．５ｍ2 ／ｇの反応性無機質粉体４を得
た。Preparation of Reactive Inorganic Powder 4 Fly ash (manufactured by KANDENKA CORPORATION, average particle size 20 μm; J
(According to IS A 6201) is melted at 3,000 ° C. and sprayed into the atmosphere at a speed of 80 m / sec to give an average particle size of 5 μm.
m was obtained, and a reactive inorganic powder 4 having a specific surface area of 9.5 m 2 / g was obtained.
【００４２】反応性無機質粉体５の作製 カオリン（組成：ＳｉＯ2 ４５．７％、Ａｌ2 Ｏ3 ３
８．３％、平均粒径：５μｍ、ＢＥＴ比表面積：５．８
ｍ2 ／ｇ）を燃焼温度２，５００℃、噴射粒子速度５０
ｍ／秒で溶射し、組成：ＳｉＯ2 ４９．７％、Ａｌ2 Ｏ
3 ４７．０％、平均粒径：１４．８μｍ、ＢＥＴ比表面
積：１．９６ｍ2 ／ｇの反応性無機質粉体５を得た。Preparation of Reactive Inorganic Powder 5 Kaolin (composition: SiO 2 45.7%, Al 2 O 3 3
8.3%, average particle size: 5 μm, BET specific surface area: 5.8
m 2 / g) with a combustion temperature of 2,500 ° C. and an injection particle velocity of 50
Sprayed at m / sec, composition: SiO 2 49.7%, Al 2 O
3 47.0%, average particle size: 14.8μm, BET specific surface area: to obtain a reactive inorganic powder 5 of 1.96m 2 / g.
【００４３】反応性無機質粉体６の作製 カオリン（組成：ＳｉＯ2 ４５．７％、Ａｌ2 Ｏ3 ３
８．３％、平均粒径：５μｍ、ＢＥＴ比表面積：５．８
ｍ2 ／ｇ）９５重量部とクォーツ（住友セメント社製、
商品名：ソフトシリカ）５重量部及びトリエタノールア
ミン２５重量％とエタノール７５重量％の混合溶液０．
５重量部を、ウルトラファインミルＡＴ−２０（三菱重
工社製、ジルコニアボール１０ｍｍ使用、ボール充填率
８５体積％）に供給し、２５ｋｗｈ／ｋｇの機械的エネ
ルギーを作用させ、反応性無機質粉体６を得た。猶、作
用させた機械的エネルギーは上記ウルトラファインミル
に供給した電力を処理粉体単位重量で除して表した。Preparation of Reactive Inorganic Powder 6 Kaolin (composition: SiO 2 45.7%, Al 2 O 3 3
8.3%, average particle size: 5 μm, BET specific surface area: 5.8
m 2 / g) 95 parts by weight and quartz (Sumitomo Cement Co.,
Brand name: soft silica) 5 parts by weight and a mixed solution of 25% by weight of triethanolamine and 75% by weight of ethanol.
5 parts by weight was supplied to Ultra Fine Mill AT-20 (manufactured by Mitsubishi Heavy Industries, Ltd., using zirconia balls 10 mm, ball filling rate 85% by volume), and mechanical energy of 25 kwh / kg was applied to the reactive inorganic powder 6 Got The mechanical energy applied was expressed by dividing the electric power supplied to the ultrafine mill by the unit weight of the treated powder.
【００４４】反応性無機質粉体７の作製 上記反応性無機質粉体６を、３００℃で３時間加熱して
反応性無機質粉体７を得た。Preparation of Reactive Inorganic Powder 7 Reactive inorganic powder 6 was heated at 300 ° C. for 3 hours to obtain reactive inorganic powder 7.
【００４５】反応性無機質粉体８の作製 メタカオリン（エンゲルハード社製、商品名：ＳＡＴＩ
ＮＴＯＮＥ ＳＰ ３３、平均粒径３．３μｍ、ＢＥＴ
比表面積：１３．９ｍ2 ／ｇ）１００重量部及びトリエ
タノールアミン２５重量％とエタノール７５重量％の混
合溶液０．５重量部を、ウルトラファインミルＡＴ−２
０（三菱重工社製、ジルコニアボール１０ｍｍ使用、ボ
ール充填率８５体積％）に供給し、１０ｋｗｈ／ｋｇの
機械的エネルギーを作用させ、反応性無機質粉体８を得
た。猶、作用させた機械的エネルギーは上記ウルトラフ
ァインミルに供給した電力を処理粉体単位重量で除して
表した。Preparation of Reactive Inorganic Powder 8 Metakaolin (manufactured by Engelhard, trade name: SATI)
NTONE SP 33, average particle size 3.3μm, BET
100 parts by weight of specific surface area: 13.9 m 2 / g) and 0.5 parts by weight of a mixed solution of 25% by weight of triethanolamine and 75% by weight of ethanol were added to Ultra Fine Mill AT-2.
0 (manufactured by Mitsubishi Heavy Industries, using 10 mm of zirconia balls, ball filling rate 85% by volume) and mechanical energy of 10 kwh / kg was applied to obtain a reactive inorganic powder 8. The mechanical energy applied was expressed by dividing the electric power supplied to the ultrafine mill by the unit weight of the treated powder.
【００４６】無機質充填材１〜３ 無機質充填材１（８号珪砂：丸紅繊維資材社製、平均粒
径８０μｍ） 無機質充填材２（微粉珪砂：丸紅繊維資材社製、平均粒
径１０μｍ） 無機質充填材３（ワラストナイト：土屋カオリン社製、
商品名：ケモリットＡ−６０、長軸径９５μｍ、長軸径
と短軸径の比９）Inorganic fillers 1 to 3 Inorganic filler 1 (No. 8 silica sand: Marubeni Fiber Material Co., average particle size 80 μm) Inorganic filler 2 (Fine silica sand: Marubeni Fiber Material Co., average particle size 10 μm) Inorganic filler Material 3 (Wollastonite: Tsuchiya Kaolin,
Product name: Chemolit A-60, major axis diameter 95 μm, ratio of major axis diameter to minor axis diameter 9)
【００４７】実施例１〜２９、比較例１〜３７ 実施例１〜２９及び比較例１〜３２について、表１〜４
に示した所定量のＳｉＯ2 ／Ｎａ2 Ｏのモル比が１．５
のアルカリ金属珪酸塩（Ｄ）をオートクレーブ中におい
て、１３０℃、ゲージ圧７ｋｇ／ｃｍ2 で所定量の水
（Ｅ）に溶解し、所定量の無機質充填材（Ｂ）１〜３、
タルク（山陽クレー工業社製、商品名：タルク８３、平
均粒径５μｍ）、マイカ（スゾライトマイカ社製、商品
名：３２５Ｓ、平均粒径４０μｍ）、ビニロン繊維（ク
ラレ社製、品番：ＲＭ１８２×３）、ステアリン酸亜鉛
をそれぞれ添加して、ハンドミキサーで３分間混合し
た。得られた混合物に過酸化水素（Ｃ）またはアルミニ
ウム粉末（ミナルコ社製、商品名：＃３５０Ｆ、粒径７
０μｍ）を添加して２０秒間攪拌し、型枠内に注入して
３分間発泡させた後、型枠ごと８５℃のオーブン中で、
実施例１〜１３及び比較例１〜１８の場合２０時間、実
施例１４〜１７及び比較例１９〜２３の場合６時間、実
施例１８〜２９及び比較例２４〜３７の場合４時間、加
熱させて発泡体を得た。猶、２０時間加熱の場合は５時
間加熱した時点、６時間加熱の場合は３時間加熱した時
点、４時間加熱の場合は２時間加熱した時点での硬化状
態及び気泡状態を目視で観察した。得られた発泡体を脱
型して五酸化燐を入れたデシケーター内で２５℃、２０
時間乾燥した。猶、粒径はレーザー回折式分布計（セイ
シン社製、型式：ＰＲＯ７００Ｓ）で測定した。得られ
た発泡体を下記の条件で評価し、結果を表５〜１０に示
した。Examples 1-29, Comparative Examples 1-37 Tables 1-4 for Examples 1-29 and Comparative Examples 1-32
The predetermined amount of SiO 2 / Na 2 O molar ratio shown in
Alkali metal silicate (D) is dissolved in a predetermined amount of water (E) at 130 ° C. and a gauge pressure of 7 kg / cm 2 in an autoclave to obtain a predetermined amount of inorganic fillers (B) 1 to 3,
Talc (manufactured by Sanyo Clay Industry Co., Ltd., product name: talc 83, average particle size 5 μm), mica (manufactured by Suzolite Mica, product name: 325S, average particle size 40 μm), vinylon fiber (manufactured by Kuraray Co., Ltd., product number: RM182 ×) 3) and zinc stearate were added and mixed with a hand mixer for 3 minutes. Hydrogen peroxide (C) or aluminum powder (manufactured by Minarco, trade name: # 350F, particle size 7) was added to the resulting mixture.
0 μm) and stirred for 20 seconds, poured into the mold and foamed for 3 minutes, and then the mold together in an oven at 85 ° C.
Heated for 20 hours in the case of Examples 1 to 13 and Comparative Examples 1 to 18, 6 hours in the case of Examples 14 to 17 and Comparative Examples 19 to 23, and 4 hours in the case of Examples 18 to 29 and Comparative Examples 24 to 37. To obtain a foam. In the meantime, the cured state and the bubble state at the time of heating for 5 hours in the case of heating for 20 hours, at the time of heating for 3 hours in the case of heating for 6 hours, and at the time of heating for 2 hours in the case of heating for 4 hours were visually observed. The obtained foam was demolded and placed in a desiccator containing phosphorus pentoxide at 25 ° C. for 20
Dried for hours. The particle size was measured with a laser diffraction type distribution meter (manufactured by Seishin Co., Ltd., model: PRO700S). The obtained foam was evaluated under the following conditions, and the results are shown in Tables 5-10.
【００４８】１．硬化状態 所定時間加熱した時点での硬化状態及び得られた発泡体
を目視で観察し、十分に硬化したものには○、硬化せず
脱型時に破壊するものには×の評価をし、表５〜１０に
それぞれ記入した。1. Cured state By visually observing the cured state and the obtained foam at the time of heating for a predetermined time, those that have been sufficiently cured are evaluated as ◯, and those that do not cure and are destroyed during demolding are evaluated as x, Filled in 5 to 10, respectively.
【００４９】２．気泡状態 得られた発泡体の断面を顕微鏡で観察し、気泡が良好に
分散しているものには○、破泡及び気泡の分散が不良な
ものには△、発泡が不良なものには×の評価をし、表５
〜１０にそれぞれ記入した。2. Cellular state Observing the cross section of the obtained foam with a microscope, ◯ when the cells are well dispersed, Δ when the cells are broken and the dispersion of the cells is poor, and × when the cells are poorly foamed. Evaluation of Table 5
I filled in 10 respectively.
【００５０】３．圧縮強度 得られた発泡体を５０×５０×５０ｍｍに切断しＪＩＳ
Ａ １１０８に準じて、２３℃、５０％ＲＨで圧縮強
度（耐水試験前圧縮強度）を測定した。3. Compressive strength The obtained foam is cut into 50 × 50 × 50 mm JIS
According to A 1108, the compressive strength (compressive strength before water resistance test) was measured at 23 ° C. and 50% RH.
【００５１】４．耐水試験 得られた発泡体を５０×５０×５０ｍｍに切断し、８０
℃の水中に６時間浸漬後、前第３項記載の方法で圧縮強
度（耐水試験後圧縮強度）を測定し、次式によって熱水
試験後の強度保持率を求めた。 （強度保持率）＝〔（耐水試験後圧縮強度）÷（耐水試
験前圧縮強度）〕×１００4. Water resistance test The obtained foam was cut into 50 × 50 × 50 mm and
After soaking in water at 0 ° C. for 6 hours, the compressive strength (compressive strength after the water resistance test) was measured by the method described in the third paragraph, and the strength retention rate after the hot water test was determined by the following formula. (Strength retention rate) = [(compressive strength after water resistance test) / (compressive strength before water resistance test)] × 100
【００５２】又、得られた発泡体を１００×１００×１
００ｍｍに切断し、１００℃のオーブンで６時間加熱
し、その前後の長さを測定し、次式によって熱水試験後
の収縮率を求めた。 （収縮率）＝〔（加熱前の長さ）−（加熱後の長さ）〕
÷（加熱前の長さ）×１００ ５．比重 得られた発泡体を１００×１００×１００ｍｍに切断
し、重量を測定し、比重を求めた。Further, the obtained foam was treated with 100 × 100 × 1
It was cut into 00 mm and heated in an oven at 100 ° C. for 6 hours, the length before and after that was measured, and the shrinkage rate after the hot water test was determined by the following formula. (Shrinkage rate) = [(length before heating)-(length after heating)]
÷ (length before heating) × 100 5. Specific gravity The obtained foam was cut into 100 × 100 × 100 mm, and the weight was measured to determine the specific gravity.
【００５３】[0053]
【表１】 [Table 1]
【００５４】[0054]
【表２】 [Table 2]
【００５５】[0055]
【表３】 [Table 3]
【００５６】[0056]
【表４】 [Table 4]
【００５７】[0057]
【表５】 [Table 5]
【００５８】[0058]
【表６】 [Table 6]
【００５９】[0059]
【表７】 [Table 7]
【００６０】[0060]
【表８】 [Table 8]
【００６１】[0061]
【表９】 [Table 9]
【００６２】[0062]
【表１０】 [Table 10]
【００６３】[0063]
【発明の効果】本発明の発泡性無機質組成物の構成は上
述の通りであり、気泡の均一性、耐水性に優れ、加熱に
よる収縮率が小さく、断熱性の高い、高強度で低比重の
発泡体を得ることができる。The composition of the foamable inorganic composition of the present invention is as described above, and it has excellent cell uniformity and water resistance, a small shrinkage factor due to heating, high heat insulation, high strength and low specific gravity. A foam can be obtained.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 20/06 Ｚ 22/06 Ｚ 28/26 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location C04B 20/06 Z 22/06 Z 28/26
Claims (1)
１０μｍ以下であるものを８０重量％以上含有する粉
体、４００〜１，０００℃で焼成したフライアッシュ
のうち、粒径が１０μｍ以下であるものを８０重量％以
上含有する粉体、フライアッシュを溶融し、気体中に
噴霧することによって得られる粉体、粘土を溶融し、
気体中に噴霧することによって得られる粉体、粘土に
０．１〜３０ｋｗｈ／ｋｇの機械的エネルギーを作用さ
せて得られる粉体、粘土に０．１〜３０ｋｗｈ／ｋｇ
の機械的エネルギーを作用させて得られる粉体を、更に
１００〜７５０℃に加熱して得られる粉体、メタカオ
リンに０．１〜３０ｋｗｈ／ｋｇの機械的エネルギーを
作用させて得られる粉体よりなる群から選ばれる少なく
とも１種以上の反応性無機質粉体１００重量部、（Ｂ）
０．０１〜３５μｍの粒度を有する無機質充填材、
長軸径と短軸径の比が５０／１〜１．５／１である針
状、角状あるいは柱状の形状を有する無機質充填材より
なる群から選ばれる少なくとも１種以上の無機質充填材
２０〜８００重量部、（Ｃ）過酸化水素０．０１〜１０
重量部、（Ｄ）アルカリ金属珪酸塩０．２〜４５０重量
部、（Ｅ）水３５〜１，５００重量部とからなる発泡性
無機質組成物。1. (A) A powder containing 80% by weight or more of fly ash having a particle size of 10 μm or less, and a fly ash fired at 400 to 1,000 ° C. having a particle size of 10 μm or less. The powder containing 80% by weight or more of the above, the powder obtained by melting the fly ash and spraying in the gas, the clay is melted,
Powder obtained by spraying in gas, powder obtained by applying mechanical energy of 0.1 to 30 kwh / kg to clay, 0.1 to 30 kwh / kg to clay
Powder obtained by further applying mechanical energy of 100 to 750 ° C., powder obtained by applying mechanical energy of 0.1 to 30 kwh / kg to metakaolin 100 parts by weight of at least one reactive inorganic powder selected from the group consisting of (B)
An inorganic filler having a particle size of 0.01 to 35 μm,
At least one or more inorganic filler 20 selected from the group consisting of needle-like, angular or columnar inorganic fillers having a ratio of major axis diameter to minor axis diameter of 50/1 to 1.5 / 1. ~ 800 parts by weight, (C) hydrogen peroxide 0.01 to 10
A foamable inorganic composition comprising, by weight, (D) an alkali metal silicate of 0.2 to 450 parts by weight, and (E) water of 35 to 1,500 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21360294A JPH0873283A (en) | 1994-09-07 | 1994-09-07 | Foamable inorganic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21360294A JPH0873283A (en) | 1994-09-07 | 1994-09-07 | Foamable inorganic composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0873283A true JPH0873283A (en) | 1996-03-19 |
Family
ID=16641908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21360294A Pending JPH0873283A (en) | 1994-09-07 | 1994-09-07 | Foamable inorganic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0873283A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070421A3 (en) * | 2001-03-02 | 2002-10-24 | James Hardie Res Pty Ltd | Additive for dewaterable slurry |
| CN100347135C (en) * | 2003-02-12 | 2007-11-07 | 东亚合成株式会社 | Method of manufacturing porous ceramic |
| JP2009517251A (en) * | 2005-12-02 | 2009-04-30 | ソルヴェイ（ソシエテ アノニム） | Method for producing lightweight construction material containing clay |
| US8993462B2 (en) | 2006-04-12 | 2015-03-31 | James Hardie Technology Limited | Surface sealed reinforced building element |
| CN105239722A (en) * | 2015-09-10 | 2016-01-13 | 安徽芜湖飞琪水泥制品有限公司 | Foamed cement slurry column and making method thereof |
-
1994
- 1994-09-07 JP JP21360294A patent/JPH0873283A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070421A3 (en) * | 2001-03-02 | 2002-10-24 | James Hardie Res Pty Ltd | Additive for dewaterable slurry |
| US6893751B2 (en) | 2001-03-02 | 2005-05-17 | James Hardie Research Pty Limited | Composite product |
| CN100347135C (en) * | 2003-02-12 | 2007-11-07 | 东亚合成株式会社 | Method of manufacturing porous ceramic |
| US7537716B2 (en) | 2003-02-12 | 2009-05-26 | Toagosei Co., Ltd. | Method for producing porous ceramic |
| JP2009517251A (en) * | 2005-12-02 | 2009-04-30 | ソルヴェイ（ソシエテ アノニム） | Method for producing lightweight construction material containing clay |
| US8993462B2 (en) | 2006-04-12 | 2015-03-31 | James Hardie Technology Limited | Surface sealed reinforced building element |
| CN105239722A (en) * | 2015-09-10 | 2016-01-13 | 安徽芜湖飞琪水泥制品有限公司 | Foamed cement slurry column and making method thereof |
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