JPH09309774A - Production of lightweight ceramic contineous porous cell material having obliquely oriented cell - Google Patents
Production of lightweight ceramic contineous porous cell material having obliquely oriented cellInfo
- Publication number
- JPH09309774A JPH09309774A JP13150696A JP13150696A JPH09309774A JP H09309774 A JPH09309774 A JP H09309774A JP 13150696 A JP13150696 A JP 13150696A JP 13150696 A JP13150696 A JP 13150696A JP H09309774 A JPH09309774 A JP H09309774A
- Authority
- JP
- Japan
- Prior art keywords
- water
- ceramic
- absorbing
- mold
- slurry
- 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.)
- Withdrawn
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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Producing Shaped Articles From Materials (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軽量セラミックス
連続気孔体の製造方法に関し、更に詳しくは気孔を傾斜
配向し、かつ該気孔が連続気孔が形成される軽量セラミ
ックス連続気孔体の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a lightweight ceramic continuous pore body, and more particularly to a method for producing a lightweight ceramic continuous pore body in which pores are inclined and oriented and the pores are formed into continuous pores. Is.
【０００２】[0002]
【従来の技術】従来多孔質セラミックスは、軽量かつ断
熱性に優れているが故に建材を初め、断熱材等の各種の
用途に使用されている。また気泡を表面層から中心部分
に近づくにつれて気孔は大きくなる、いわゆる傾斜配向
した気孔を有する構造のセラミックス成形体が構造材料
として使用されることが開示されている。2. Description of the Related Art Conventionally, since porous ceramics are lightweight and have excellent heat insulating properties, they have been used for various purposes such as building materials and heat insulating materials. Further, it is disclosed that a ceramic molded body having a structure having so-called obliquely oriented pores, in which the pores become larger as the bubbles approach the central portion from the surface layer, is used as a structural material.
【０００３】[0003]
【発明が解決しようとする課題】そこで、本発明者は、
前記傾斜配向した気孔構造を建材等に使用するのに適す
る製造方法について種々検討するなか、傾斜配向した気
孔の勾配を制御することによって軽量で、各種のセラミ
ックス連続気孔体が簡単に得られる製造方法を見出し、
ここに本発明をするに至った。したがって、本発明が解
決しようとする第１の課題は、傾斜配向した気孔の勾配
の制御が簡単にできかつ連続気孔が得られる軽量セラミ
ックス連続気孔体の製造方法を提供することにある。ま
た本発明が解決しようとする第２の課題は、一方の面か
ら他方の面に向かって気泡が大きくなるような傾斜配向
した構造が簡単に得られかつ連続気孔が得られる軽量セ
ラミックス連続気孔体の製造方法を提供することにあ
る。Therefore, the present inventor has proposed:
Among various studies on a manufacturing method suitable for using the tilted pore structure in a building material, etc., a manufacturing method by which various ceramic continuous pore bodies can be easily obtained by controlling the gradient of the tilted pores to be lightweight. Heading
The present invention has been completed here. Therefore, a first problem to be solved by the present invention is to provide a method for manufacturing a lightweight ceramic continuous pore body in which the gradient of pores oriented in an inclined manner can be easily controlled and continuous pores can be obtained. A second problem to be solved by the present invention is a lightweight ceramic continuous pore body which can easily obtain a structure in which the cells are inclined and oriented so that the bubbles increase from one surface to the other surface and continuous pores are obtained. It is to provide a manufacturing method of.
【０００４】[0004]
【課題を解決するための手段】本発明が解決しようとす
る課題は、以下の各発明によって達成される。The problem to be solved by the present invention is achieved by the following inventions.
【０００５】（１）セラミックス粉粒体に分散剤、有機
バインダー及び起泡剤を含有する水溶液を添加して攪拌
混合して得られる発泡スラリー又はセラミックスラリー
に気孔直径が１０μｍ〜２０００μｍである発泡液を加
えて攪拌混合して得られる発泡スラリーを吸水性又は非
吸水性の型枠に流し込み、ついで−２０℃〜８０℃の温
度で脱水することにより乾燥することを特徴とする軽量
セラミックス連続気孔体の製造方法。 （２）吸水性型枠の吸水面に多孔質膜を設けることを特
徴とする前記第１項に記載の軽量セラミックス連続気孔
体の製造方法。 （３）型枠の一方が吸水性材質からなり、型枠の他方が
非吸水性材質からなることを特徴とする前記第１項又は
第２項に記載の軽量セラミックス連続気孔体の製造方
法。(1) A foaming slurry having a pore diameter of 10 μm to 2000 μm in a foaming slurry or a ceramic slurry obtained by adding an aqueous solution containing a dispersant, an organic binder and a foaming agent to a ceramic powder and stirring and mixing. And agitating and mixing the resulting foamed slurry into a water-absorbing or non-water-absorbing mold, and then dried by dehydration at a temperature of -20 ° C to 80 ° C to dry the ceramics. Manufacturing method. (2) The method for producing a lightweight ceramic continuous pore body according to the above item (1), wherein a porous membrane is provided on the water absorbing surface of the water absorbing mold. (3) The method for producing a lightweight ceramic continuous pore body according to the above item 1 or 2, wherein one of the molds is made of a water-absorbing material and the other of the molds is made of a non-water-absorbing material.
【０００６】[0006]
【発明の実施の形態】以下、本発明を更に詳しく説明す
ると、本発明の軽量セラミックス連続気孔体の製造方法
は、セラミックス粉粒体に分散剤、有機バインダー及び
起泡剤を含有する水溶液を添加して攪拌混合して得られ
る発泡スラリー又はセラミックスラリーに気孔直径が１
０μｍ〜２０００μｍである発泡液を加えて攪拌混合し
て得られる発泡スラリーを吸水性又は非吸水性の型枠に
流し込み、ついで−２０℃〜８０℃の温度で脱水するこ
とにより乾燥することを特徴とするもので、これにより
傾斜配向した気孔の勾配の制御が簡単にできると共にこ
のように得られたセラミックスは、軽量にして連続気孔
のものが得られる。また本発明において、吸水性型枠の
吸水面に多孔質膜を設けることにより脱型が容易であ
り、不良品の発生率を押さえることができる。更に型枠
の一方が吸水性材質からなり、型枠の他方が非吸水性材
質からなることにより一方の面から他方の面に向かって
気泡が大きくなるような傾斜配向した構造が簡単に得ら
れると共にこのように得られたセラミックスは、軽量に
して連続気孔のものが得られる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. In the method for producing a lightweight ceramic continuous pore body of the present invention, an aqueous solution containing a dispersant, an organic binder and a foaming agent is added to ceramic powder particles. Then, the foamed slurry or ceramic slurry obtained by stirring and mixing has a pore diameter of 1
A foaming slurry obtained by adding a foaming liquid of 0 μm to 2000 μm and mixing with stirring is poured into a water-absorbing or non-water-absorbing mold, and then dehydrated at a temperature of −20 ° C. to 80 ° C. for drying. This makes it possible to easily control the gradient of the obliquely oriented pores, and the ceramic thus obtained can be made lighter and have continuous pores. Further, in the present invention, by providing the porous film on the water absorbing surface of the water absorbing mold, it is possible to easily remove the mold and suppress the occurrence rate of defective products. Further, one of the molds is made of a water-absorbing material and the other of the molds is made of a non-water-absorbing material, so that a structure in which the bubbles are enlarged from one surface to the other surface can be easily obtained. At the same time, the ceramics thus obtained can be made lighter and have continuous pores.
【０００７】本発明に用いられる発泡スラリーの成分に
ついて説明すると、セラミックス粉粒体は、酸化物系又
は非酸化物系のいずれのセラミックス粉粒体を用いるこ
ともでき、酸化物系セラミックス粉粒体としては、マグ
ネシア（ＭｇＯ）、アルミナ（Ａ１2 Ｏ3 ）、スピネ
ル、ムライト、ジルコニア等が挙げられる。これらは１
種又は２種以上を混合してもよい。また非酸化物系セラ
ミックス粉粒体としては、炭化けい素系、窒化ケイ素
系、窒化アルミニウム系、窒化ホウ素系、グラファイト
系等のセラミックス粉粒体等が挙げられる。これらは１
種又は２種以上を混合してもよい。更に前記の酸化物系
と非酸化物系のセラミックス粉粒体を適宜混合してもよ
い。Explaining the components of the foaming slurry used in the present invention, the ceramic powder particles can be either oxide-based or non-oxide ceramic powder particles, and the oxide-based ceramic powder particles can be used. Examples thereof include magnesia (MgO), alumina (A1 2 O 3 ), spinel, mullite, zirconia and the like. These are 1
You may mix 1 type (s) or 2 or more types. Examples of the non-oxide-based ceramic powder particles include silicon carbide-based, silicon nitride-based, aluminum nitride-based, boron nitride-based, and graphite-based ceramic powder particles. These are 1
You may mix 1 type (s) or 2 or more types. Further, the above-mentioned oxide-based and non-oxide-based ceramic powder particles may be appropriately mixed.
【０００８】また有機バインダーとしては、ポリビニル
アルコール、アクリル系樹脂、メチルセルロース等が用
いられる。更に起泡剤としては、発泡に際し、気孔の直
径が１０μｍ〜２０００μｍとなるものが好ましく、通
常タンパク質系起泡剤、卵白及び界面活性剤を主成分と
する起泡剤等が用いられる。発泡スラリー中の気孔の直
径は１０μｍ〜２０００μｍとなるが、気孔の直径が１
０μｍ未満では、軽量性が発揮できないばかりか断熱性
等の特性も劣る。また気孔の直径が２０００μｍを越え
ると、強度が弱くなり、従来の建材等の用途に使用でき
なくなる。分散剤としては、通常この技術分野で用いら
れるものでよく、ポリアクリル酸アンモニウム塩、界面
活性剤等が挙げられる。As the organic binder, polyvinyl alcohol, acrylic resin, methyl cellulose, etc. are used. Further, the foaming agent preferably has a pore diameter of 10 μm to 2000 μm at the time of foaming, and a protein-based foaming agent, a foaming agent containing egg white and a surfactant as a main component is usually used. The diameter of the pores in the foamed slurry is 10 μm to 2000 μm, but the diameter of the pores is 1 μm.
If it is less than 0 μm, not only the lightness cannot be exhibited, but also the properties such as heat insulating property are deteriorated. If the diameter of the pores exceeds 2000 μm, the strength becomes weak and it cannot be used for conventional construction materials. As the dispersant, those usually used in this technical field may be used, and examples thereof include polyacrylic acid ammonium salts and surfactants.
【０００９】本発明に用いられる発泡スラリーの成分割
合は、セラミックス粉粒体１００重量部に対して、分散
剤０．５〜５０．０重量部、有機バインダー０．５〜５
０．０重量部、起泡剤０．１〜５．０重量部、水１０〜
７０重量部が好ましく、必要に応じて気泡安定剤、その
他の各種添加剤を加えることができる。また本発明の方
法では、発泡スラリーの製造方法には、セラミックス粉
粒体に分散剤、有機バインダー及び起泡剤を含有する水
溶液を添加して攪拌混合する方法とセラミックスラリー
に気孔直径が１０μｍ〜２０００μｍである発泡液を加
えて攪拌混合する二通りの方法があるが、いずれの方法
を用いてもよい。好ましくは前者である。またセラミッ
クスラリーに気孔直径が１０μｍ〜２０００μｍである
発泡液を加えて攪拌混合する方法では、セラミックスラ
リーは、セラミックス粉粒体、分散剤、有機バインダー
及び水を混合攪拌して形成される。また発泡液は、水に
起泡剤と増粘剤を添加し攪拌混合することにより形成さ
れる。増粘剤はメチルセルース等のセルロース系誘導
体、ポリビニルアルコール、糖蜜等が好ましく用いられ
る。The composition ratio of the foaming slurry used in the present invention is 0.5 to 50.0 parts by weight of a dispersant and 0.5 to 5 parts by weight of an organic binder with respect to 100 parts by weight of ceramic powder particles.
0.0 parts by weight, foaming agent 0.1-5.0 parts by weight, water 10-
70 parts by weight is preferable, and if necessary, a bubble stabilizer and other various additives can be added. Further, in the method of the present invention, in the method for producing a foamed slurry, a method of adding an aqueous solution containing a dispersant, an organic binder and a foaming agent to a ceramic powder and stirring and mixing, and a ceramic slurry having a pore diameter of 10 μm to There are two methods of adding the foaming liquid of 2000 μm and stirring and mixing, but either method may be used. Preferably the former. Further, in the method of adding a foaming liquid having a pore diameter of 10 μm to 2000 μm to the ceramic slurry and stirring and mixing, the ceramic slurry is formed by mixing and stirring ceramic powder particles, a dispersant, an organic binder and water. Further, the foaming liquid is formed by adding a foaming agent and a thickening agent to water and stirring and mixing. Cellulose derivatives such as methylcellose, polyvinyl alcohol, molasses, etc. are preferably used as the thickener.
【００１０】本発明に用いられる型枠としては、吸水性
又は非吸水性の型枠が用いられるが、吸水性型枠として
は、石膏型、セラミック樹脂型、セラミック多孔体、ス
ポンジのような樹脂系多孔体等が挙げられる。また型枠
の上面を開放した状態とすることにより吸水性型枠を使
用したと同様の作用効果が得られる。この上面の開放状
態の型枠も本発明に用いられる吸水性型枠の範囲に入る
ものである。また非吸水性型枠としては、金属製型、プ
ラスチック製型、セラミックス製型等が挙げられる。A water-absorbing or non-water-absorbing mold is used as the mold used in the present invention. As the water-absorbing mold, a resin such as gypsum mold, ceramic resin mold, ceramic porous body or sponge is used. Examples include porous materials. Further, by leaving the upper surface of the mold open, the same operational effect as when using the water absorbing mold can be obtained. The mold with the upper surface opened is also within the range of the water-absorbing mold used in the present invention. Further, examples of the non-water-absorbing mold include metal molds, plastic molds, ceramic molds and the like.
【００１１】本発明の方法では、更に型枠に流し込んだ
後、−２０℃〜８０℃の温度で脱水乾燥するが、これに
より傾斜配向した気孔を適宜の勾配に制御することがで
きると共に連続気孔を得ることができるもので、、この
温度制御により各種の材料が得られ、一方の表面には、
気孔率が３０〜９５％で５０μｍ〜５００μｍの気孔が
形成され、また他方の面付近では、最大５０００μｍ近
くの気孔径となるものまで形成することができる。温度
が−２０℃未満で脱水乾燥する場合は、氷の蒸気圧が低
くなるため脱水時間が長くなり、したがって脱水による
乾燥効率が悪くなり、これ以上の勾配の制御ができない
ので意味がない。また温度が８０℃を越えて脱水乾燥す
る場合は、強度が弱くなり過ぎ構造材料として使用がで
きない。更に乾燥時間は、５時間〜１００時間が好まし
い。なお、０℃以上では常圧乾燥で行われ、０℃未満で
は減圧下で凍結乾燥を行う。In the method of the present invention, after further pouring into the mold, dehydration and drying are carried out at a temperature of -20 ° C to 80 ° C. This makes it possible to control the obliquely oriented pores to an appropriate gradient and to form continuous pores. And various materials can be obtained by this temperature control, and one surface has
Porosity of 30 to 95% and pores of 50 μm to 500 μm are formed, and in the vicinity of the other surface, pores having a pore diameter of up to 5000 μm can be formed. When the temperature is lower than −20 ° C. for dehydration drying, the vapor pressure of ice is low and the dehydration time is long, so that the drying efficiency due to dehydration is deteriorated and the gradient cannot be controlled any more. When the temperature exceeds 80 ° C. and is dehydrated and dried, the strength becomes too weak to be used as a structural material. Further, the drying time is preferably 5 hours to 100 hours. At 0 ° C. or higher, atmospheric pressure drying is performed, and at less than 0 ° C., freeze drying is performed under reduced pressure.
【００１２】本発明では、吸水性型枠の吸水面に多孔質
膜を設けることにより脱型を容易にすることができる
が、この多孔質膜としては、紙、ガラスフィルター、セ
ラミックスフィルター等が挙げられ、好ましくはガラス
フィルター、セラミックスフィルターである。また本発
明の方法において、型枠の一方が吸水性材質からなり、
型枠の他方が非吸水性材質からなることにより吸水性型
枠の面から非吸水性型枠の面に向かって気泡が大きくな
るような傾斜配向した構造が簡単に得られると共にこの
ように得られたセラミックスは、軽量にして連続気孔の
ものが得られる。また本発明の方法で気泡径又は気孔率
の異なる発泡スラリーを２層以上重ねて脱水乾燥するこ
ともでき、これにより前記第３項の発明で得られた軽量
セラミックス連続気孔体を複数重ねた構造のものが得ら
れる。本発明の製造方法で得られた軽量セラミックス連
続気孔体は、各種の用途に用いられるが、例えば軽量建
材、断熱的用途等が挙げられる。In the present invention, a mold can be easily removed by providing a porous film on the water absorbing surface of the water absorbing mold. Examples of the porous film include paper, glass filter, ceramic filter and the like. And preferably a glass filter or a ceramics filter. In the method of the present invention, one of the molds is made of a water-absorbing material,
Since the other of the molds is made of a non-water-absorbing material, it is possible to easily obtain a structure in which the bubbles are enlarged from the surface of the water-absorbing mold toward the surface of the non-water-absorbing mold, and the structure is obtained in this way. The ceramics thus obtained can be made lighter and have open pores. Further, by the method of the present invention, two or more layers of foamed slurries having different cell diameters or porosities can be stacked and dehydrated and dried, whereby a structure in which a plurality of lightweight ceramic continuous pore bodies obtained in the invention of the above-mentioned item 3 are stacked. You can get The lightweight ceramic continuous pore body obtained by the production method of the present invention is used for various purposes, and examples thereof include lightweight building materials and heat insulating applications.
【００１３】[0013]
【実施例】以下、本発明の製造方法について更に詳しく
実施例を挙げて説明するが、この例によって限定される
ものではない。EXAMPLES The production method of the present invention will now be described in more detail with reference to examples, but the present invention is not limited thereto.
【００１４】〔実施例〕セラミックス粉粒体（平均粒径
０．６μｍのアルミナ）１００重量部に、分散剤（商品
名「セルナＤ−３０５」、ポリカルボン酸アンモニウム
塩系化合物、中京油脂（株）製）６．０重量部、有機バ
インダー（商品名「セルナＷＥ−５１８」、アクリルエ
マルジョン系化合物、中京油脂（株）製）１．５重量
部、起泡剤（商品名「ＳＲ−１」、アニオン界面活性剤
系化合物、三洋化成工業（株）製）１．５重量部及び水
４０重量部からなる水溶液を添加し、これらを十分攪拌
して混合し、発泡スラリーを得た。この発泡スラリーを
石膏製の吸水性型枠に流し込み、上からプラスチック製
の非吸水性型枠で押さえた。ついで、得られたこれらの
型枠を８０℃乾燥、常温乾燥及び凍結乾燥の条件で脱水
乾燥し、それそれ試料１〜試料３を得た。図１から明ら
かなように、試料３の凍結乾燥（−２０℃）では、勾配
は平であり、表面から深さ方向に気孔の粒径は余り変わ
らない。試料２の常温乾燥では、勾配は若干上昇してお
り、更に試料１の８０℃乾燥では、急峻な勾配となって
おり、気孔の粒径が表面から深さ方向に大きく成長して
いることがわかる。なお、この試料１では表面で５００
μｍであり、他面では３２５０μｍであることがわか
る。[Examples] 100 parts by weight of a ceramic powder (alumina having an average particle size of 0.6 µm), a dispersant (trade name "Selna D-305", a polycarboxylic acid ammonium salt compound, Chukyo Yushi Co., Ltd.) )) 6.0 parts by weight, organic binder (trade name "Cerna WE-518", acrylic emulsion compound, manufactured by Chukyo Yushi Co., Ltd.) 1.5 parts by weight, foaming agent (trade name "SR-1") , An anionic surfactant compound, manufactured by Sanyo Kasei Co., Ltd., and 1.5 parts by weight of water and 40 parts by weight of water were added, and these were sufficiently stirred and mixed to obtain a foam slurry. The foamed slurry was poured into a water-absorbent mold made of gypsum and pressed from above with a non-water-absorbent mold made of plastic. Then, the obtained molds were dehydrated and dried under the conditions of 80 ° C. drying, normal temperature drying and freeze drying, to obtain Sample 1 to Sample 3 respectively. As is clear from FIG. 1, in the freeze-drying (−20 ° C.) of Sample 3, the gradient is flat and the pore size does not change much in the depth direction from the surface. When the sample 2 is dried at room temperature, the gradient is slightly increased, and when the sample 1 is dried at 80 ° C., the gradient is steep, and the grain size of the pores grows greatly from the surface in the depth direction. Recognize. In addition, in this sample 1, the surface is 500
It can be seen that it is 3 μm on the other side.
【００１５】[0015]
【発明の効果】本発明の軽量セラミックス連続気孔体の
製造方法おいて、発泡スラリーを吸水性又は非吸水性の
型枠に流し込み、ついで−２０℃〜８０℃の温度で脱水
乾燥することにより、傾斜配向した気孔の勾配の制御が
簡単にできかつ連続気孔が得られる。また本発明の軽量
セラミックス連続気孔体の製造方法おいて、型枠の一方
が吸水性材質からなり、型枠の他方が非吸水性材質から
なることにより一方の面から他方の面に向かって気泡が
大きくなるような傾斜配向した構造が簡単に得られると
共にこのように得られたセラミックスは、軽量にして連
続気孔のものが得られる。更に本発明の方法において、
吸水性型枠の吸水面に多孔質膜を設けることにより、脱
型が容易であり、不良品の発生率を押さえることができ
る。これらの製造方法で得られた軽量セラミックス連続
気孔体は、建材や断熱用途等に用いられる。In the method for producing a lightweight ceramic continuous pore body of the present invention, the foamed slurry is poured into a water-absorbing or non-water-absorbing mold and then dehydrated and dried at a temperature of -20 ° C to 80 ° C. The gradient of the obliquely oriented pores can be easily controlled and continuous pores can be obtained. Further, in the method for producing a lightweight ceramics continuous pore body of the present invention, one of the molds is made of a water-absorbing material and the other of the molds is made of a non-water-absorbing material so that air bubbles are generated from one surface to the other surface. It is possible to easily obtain a structure with a tilted orientation such that the size of the ceramics becomes large, and the ceramics thus obtained can be made lighter and have continuous pores. Further in the method of the invention,
By providing the porous film on the water absorbing surface of the water absorbing mold, it is easy to remove the mold, and the incidence of defective products can be suppressed. The lightweight ceramic continuous pore bodies obtained by these manufacturing methods are used for building materials, heat insulation applications and the like.
【図１】本発明の製造方法で得られた軽量セラミックス
連続気孔体の気孔の勾配を表わすグラフである。FIG. 1 is a graph showing a pore gradient of a lightweight ceramic continuous pore body obtained by a manufacturing method of the present invention.
１ 試料１（８０℃乾燥） ２ 試料２（常温乾燥） ３ 試料３（凍結乾燥） 1 Sample 1 (80 ° C drying) 2 Sample 2 (room temperature drying) 3 Sample 3 (freeze drying)
Claims (3)
ダー及び起泡剤を含有する水溶液を添加して攪拌混合し
て得られる発泡スラリー又はセラミックスラリーに気孔
直径が１０μｍ〜２０００μｍである発泡液を加えて攪
拌混合して得られる発泡スラリーを吸水性又は非吸水性
の型枠に流し込み、ついで−２０℃〜８０℃の温度で脱
水することにより乾燥することを特徴とする軽量セラミ
ックス連続気孔体の製造方法。1. A foaming liquid having a pore diameter of 10 μm to 2000 μm is added to a foaming slurry or a ceramic slurry obtained by adding an aqueous solution containing a dispersant, an organic binder and a foaming agent to ceramic powder and stirring the mixture. In addition, a foamed slurry obtained by stirring and mixing is poured into a water-absorbing or non-water-absorbing mold, and then dehydrated and dried at a temperature of −20 ° C. to 80 ° C. Production method.
とを特徴とする請求項２に記載の軽量セラミックス連続
気孔体の製造方法。2. The method for producing a lightweight ceramic continuous pore body according to claim 2, wherein a porous film is provided on the water absorbing surface of the water absorbing mold.
他方が非吸水性材質からなることを特徴とする請求項２
又は請求項３に記載の軽量セラミックス連続気孔体の製
造方法。3. One of the molds is made of a water-absorbing material, and the other of the molds is made of a non-water-absorbing material.
Alternatively, the method for producing a lightweight ceramic continuous pore body according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13150696A JPH09309774A (en) | 1996-05-27 | 1996-05-27 | Production of lightweight ceramic contineous porous cell material having obliquely oriented cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13150696A JPH09309774A (en) | 1996-05-27 | 1996-05-27 | Production of lightweight ceramic contineous porous cell material having obliquely oriented cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09309774A true JPH09309774A (en) | 1997-12-02 |
Family
ID=15059626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13150696A Withdrawn JPH09309774A (en) | 1996-05-27 | 1996-05-27 | Production of lightweight ceramic contineous porous cell material having obliquely oriented cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09309774A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010228932A (en) * | 2009-03-25 | 2010-10-14 | Mitsubishi Materials Corp | Method of manufacturing porous sintered compact |
| CN110317067A (en) * | 2019-07-19 | 2019-10-11 | 广东金意陶陶瓷集团有限公司 | Foaming agent and its preparation method and application, foamed ceramic wallboard powder and preparation method thereof |
| CN113968722A (en) * | 2021-11-01 | 2022-01-25 | 山东瀚实环保设备有限公司 | Method for preparing porous ceramic by using potassium feldspar washing waste |
-
1996
- 1996-05-27 JP JP13150696A patent/JPH09309774A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010228932A (en) * | 2009-03-25 | 2010-10-14 | Mitsubishi Materials Corp | Method of manufacturing porous sintered compact |
| CN110317067A (en) * | 2019-07-19 | 2019-10-11 | 广东金意陶陶瓷集团有限公司 | Foaming agent and its preparation method and application, foamed ceramic wallboard powder and preparation method thereof |
| CN113968722A (en) * | 2021-11-01 | 2022-01-25 | 山东瀚实环保设备有限公司 | Method for preparing porous ceramic by using potassium feldspar washing waste |
| CN113968722B (en) * | 2021-11-01 | 2022-10-25 | 山东瀚实环保设备有限公司 | Method for preparing porous ceramic by using potassium feldspar washing waste |
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