JP2008120622A - Mixed raw material for producing porous ceramic sintered compact, having high foaming speed - Google Patents
Mixed raw material for producing porous ceramic sintered compact, having high foaming speed Download PDFInfo
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この発明は、多孔質セラミックス焼結体を製造するための発泡速度の速い混合原料に関するものである。 The present invention relates to a mixed raw material having a high foaming speed for producing a porous ceramic sintered body.
一般に、多孔質セラミックス焼結体は、触媒担体、鋳物用フィルター、断熱材、吸音材、流体ミキサー、高温用フィルター、空気清浄機用フィルター、アルカリ二次電池の電極基板、燃料電池の各種電極などを作製するための素材として使用することは広く知られている。この多孔質セラミックスを製造する方法の一つとして、セラミックス粉末を含有する多孔質セラミックス焼結体製造用混合原料をドクターブレード法により薄板状に成形し、この薄板状成形体を高温・高湿度槽において前記多孔質セラミックス焼結体製造用混合原料に含まれる発泡剤である揮発性有機溶剤の蒸気圧および界面活性剤の起泡性を利用してスポンジ状に発泡させ、さらに乾燥槽において乾燥させてスポンジ状グリーン板を製造し、このスポンジ状グリーン板を脱脂装置および焼成炉を通すことにより脱脂、焼成し、これにより連続空孔を有する多孔質セラミックスを製造していた。 Generally, porous ceramic sintered bodies are used as catalyst carriers, casting filters, heat insulating materials, sound absorbing materials, fluid mixers, high temperature filters, air purifier filters, alkaline secondary battery electrode substrates, fuel cell electrodes, etc. It is widely known that it is used as a material for manufacturing. As one of the methods for producing this porous ceramic, a mixed raw material for producing a porous ceramic sintered body containing ceramic powder is formed into a thin plate shape by a doctor blade method, and this thin plate-like formed body is formed into a high temperature / high humidity tank. The foam is foamed into a sponge using the vapor pressure of the volatile organic solvent which is the foaming agent contained in the mixed raw material for producing the porous ceramic sintered body and the foaming property of the surfactant, and further dried in a drying tank. Thus, a sponge-like green plate was manufactured, and the sponge-like green plate was degreased and fired by passing through a degreasing device and a firing furnace, thereby producing a porous ceramic having continuous pores.
前記多孔質セラミックス焼結体製造用混合原料として、
炭素数５〜８の非水溶性炭化水素系有機溶剤：０．０５〜１０質量％、
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、さらに必要に応じて、
界面活性剤：０．０５〜５質量％、
を含有し、さらに必要に応じて、
多価アルコール、油脂、エーテルおよびエステルの内の少なくとも１種からなる可塑剤：０．１〜１５質量％を含有し、
水：残部、からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料が知られている。
As a mixed raw material for producing the porous ceramic sintered body,
Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
And, if necessary,
Surfactant: 0.05-5% by mass,
And, if necessary,
A plasticizer comprising at least one of polyhydric alcohols, fats and oils, ethers and esters: 0.1 to 15% by mass,
There is known a mixed raw material for producing a porous ceramic sintered body comprising a mixture having a composition comprising water: the balance.
そして、ここで発泡剤はガスを発生して気泡を形成できるものであれば良く、揮発性有機溶剤、例えば、ペンタン、ネオペンタン、ヘキサン、イソへキサン、イソペプタン、ベンゼン、オクタン、トルエンなどの炭素数５〜８の非水溶性炭化水素系有機溶剤を使用することができること、
水溶性樹脂結合剤としてはメチルセルロース、ヒドロキシプロピルメチルセルロース、ヒドロキシエチルメチルセルロース、カルボキシメチルセルロースアンモニウム、エチルセルロース、ポリビニルアルコールなどを使用することができること、
界面活性剤としてはアルキルベンゼンスルホン酸塩、α−オレフィンスルホン酸塩、アルキル硫酸エステル塩、アルキルエーテル硫酸エステル塩、アルカンスルホン酸塩等のアニオン界面活性剤、ポリエチレングリコール誘導体、多価アルコール誘導体などの非イオン性界面活性剤などを使用することができること、
可塑剤としては、成形体に可塑性を付与するためのもので、エチレングリコール、ポリエチレングリコール、グリセリンなどの多価アルコール、鰯油、菜種油、オリーブ油などの油脂、石油エーテルなどのエーテル類、フタル酸ジエチル、フタル酸ジＮブチル、フタル酸ジエチルヘキシル、フタル酸ジオクチル、ソルビタンモノオレート、ソルビタントリオレート、ソルビタンパルミテート、ソルビタンステアレートなどのエステルなどを使用することができること、などが知られている（特許文献１、２などを参照）。そして、この従来の多孔質セラミックス焼結体製造用混合原料は、前記水溶性樹脂結合剤、セラミックス粉末、水を含有し、さらに必要に応じて界面活性剤および／または可塑剤を含有するスラリーを先ず作製し、このスラリーに発泡剤として作用する前記炭素数５〜８の非水溶性炭化水素系有機溶剤を添加し混練することにより作製する。かかる混練により作製した従来の多孔質セラミックス焼結体製造用混合原料に含まれる気体の割合は１体積％以下であり、通常は混練により混入した空気を可能な限り少なくするために真空脱泡などの処理も施されていた。
As the water-soluble resin binder, methylcellulose, hydroxypropylmethylcellulose, hydroxyethylmethylcellulose, carboxymethylcellulose ammonium, ethylcellulose, polyvinyl alcohol, etc. can be used,
As surfactants, non-ionic surfactants such as alkylbenzene sulfonates, α-olefin sulfonates, alkyl sulfate esters, alkyl ether sulfates, alkane sulfonates, polyethylene glycol derivatives, polyhydric alcohol derivatives, etc. That ionic surfactants can be used,
Plasticizers are used to impart plasticity to molded products. Polyhydric alcohols such as ethylene glycol, polyethylene glycol and glycerin, oils and fats such as coconut oil, rapeseed oil and olive oil, ethers such as petroleum ether, diethyl phthalate It is known that esters such as di-N-butyl phthalate, diethylhexyl phthalate, dioctyl phthalate, sorbitan monooleate, sorbitan trioleate, sorbitan palmitate, sorbitan stearate, etc. can be used (patents) (Refer to Literatures 1 and 2) The conventional mixed raw material for producing a porous ceramic sintered body contains the water-soluble resin binder, ceramic powder, and water, and further contains a slurry containing a surfactant and / or a plasticizer as necessary. First, it is prepared by adding and kneading the water-insoluble hydrocarbon-based organic solvent having 5 to 8 carbon atoms that acts as a foaming agent to the slurry. The ratio of the gas contained in the conventional mixed raw material for producing a porous ceramic sintered body produced by kneading is 1% by volume or less, and usually vacuum defoaming or the like in order to reduce the air mixed by kneading as much as possible. The processing of was also given.
前述のように、前記従来の多孔質セラミックス焼結体製造用混合原料を用いて多孔質セラミックス焼結体を製造する工程において、多孔質セラミックス焼結体製造用混合原料をドクターブレード法により薄い板状に成形し、この成形して得られた板状成形体を高温・高湿度槽において前記多孔質セラミックス焼結体製造用混合原料の板状成形体に含まれる発泡剤である揮発性有機溶剤の蒸気圧および界面活性剤の起泡性を利用してスポンジ状に発泡させる工程を経なければならないが、従来の多孔質セラミックス焼結体製造用混合原料の薄板成形体を発泡させようとしても、従来の多孔質セラミックス焼結体製造用混合原料は発泡速度が遅いために発泡を終了させるためには６０〜２４０分の長時間を必要とし、発泡にさせるに時間がかかりすぎて量産するには適当ではない。 As described above, in the process of manufacturing a porous ceramic sintered body using the conventional mixed raw material for manufacturing a porous ceramic sintered body, the mixed raw material for manufacturing the porous ceramic sintered body is thinned by a doctor blade method. A volatile organic solvent which is a foaming agent contained in the plate-like molded body of the mixed raw material for producing a porous ceramic sintered body in a high-temperature / high-humidity tank. The process must be foamed into a sponge shape using the vapor pressure of the surfactant and the foaming property of the surfactant. The conventional mixed raw material for producing a porous ceramic sintered body has a slow foaming speed, so it takes 60 to 240 minutes to finish foaming, and it takes time to foam. Assistant engineer not suitable for mass production.
そこで、本発明者らは、発泡速度の速い多孔質セラミックス焼結体製造用混合原料を得るべく研究を行った。その結果、
（イ）多孔質セラミックス焼結体製造用混合原料にある程度気体が含まれている方が、気体含有量の少ないまたは真空脱泡して気体が含まれない多孔質セラミックス焼結体製造用混合原料に比べて発泡時間が格段に短くなる、
（ロ）多孔質セラミックス焼結体製造用混合原料に含まれる気体は、空気、酸素、窒素、アルゴン、ヘリウム、二酸化炭素、水素などが好ましく、多孔質セラミックス焼結体製造用混合原料に含まれる気体の量は２〜５０体積％（好ましくは、５〜２０体積％）の範囲内にあると、発泡終了までの時間が１〜２０分となって発泡終了までの時間を大幅に短縮することができ、多孔質セラミックスの製造時間を一層短くすることができる、などの知見を得たのである。
Therefore, the present inventors have studied to obtain a mixed raw material for producing a porous ceramic sintered body having a high foaming speed. as a result,
(A) A mixed raw material for producing a porous ceramic sintered body that contains a certain amount of gas in the porous ceramic sintered body production material has a lower gas content or is vacuum-defoamed and does not contain gas. Compared to the foaming time is much shorter,
(B) The gas contained in the mixed raw material for producing the porous ceramic sintered body is preferably air, oxygen, nitrogen, argon, helium, carbon dioxide, hydrogen, etc., and contained in the mixed raw material for producing the porous ceramic sintered body. When the amount of gas is in the range of 2 to 50% by volume (preferably 5 to 20% by volume), the time until foaming ends is 1 to 20 minutes, and the time until foaming ends is greatly shortened. As a result, it has been found that the manufacturing time of the porous ceramics can be further shortened.
この発明は、かかる知見に基づいてなされたものであって、
（１）炭素数５〜８の非水溶性炭化水素系有機溶剤：０．０５〜１０質量％、
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、
水：残部からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ａという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ａとなる割合で気体を含む発泡速度の速い多孔質セラミックス焼結体製造用混合原料、
（２）炭素数５〜８の非水溶性炭化水素系有機溶剤：０．０５〜１０質量％、
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
界面活性剤：０．０５〜５質量％、
を含有し、
水：残部からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ｂという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ｂとなる割合で気体を含む発泡速度の速い多孔質セラミックス焼結体製造用混合原料、
（３）炭素数５〜８の非水溶性炭化水素系有機溶剤：０．０５〜１０質量％、
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、さらに、
多価アルコール、油脂、エーテルおよびエステルの内の少なくとも１種からなる可塑剤：０．１〜１５質量％を含有し、
水：残部、からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ｃという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ｃとなる割合で気体を含む発泡速度の速い多孔質セラミックス焼結体製造用混合原料、
（４）炭素数５〜８の非水溶性炭化水素系有機溶剤：０．０５〜１０質量％、
界面活性剤：０．０５〜５質量％、
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、さらに、
多価アルコール、油脂、エーテルおよびエステルの内の少なくとも１種からなる可塑剤：０．１〜１５質量％を含有し、
水：残部、からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ｄという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ｄとなる割合で気体を含む発泡速度の速い多孔質セラミックス焼結体製造用混合原料、に特徴を有するものである。
This invention has been made based on such knowledge,
(1) Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
Containing
Water: A mixed raw material for producing a porous ceramic sintered body (hereinafter referred to as a mixed raw material A for producing a conventional porous ceramic sintered body) consisting of a mixture of the remaining composition and a gas,
Gas: 2 to 50% by volume, remainder: mixed raw material for producing a porous ceramic sintered body having a high foaming rate, which contains gas in a ratio to become a mixed raw material A for producing a conventional porous ceramic sintered body,
(2) Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
Surfactant: 0.05-5% by mass,
Containing
Water: A mixed raw material for producing a porous ceramic sintered body (hereinafter referred to as a mixed raw material B for producing a conventional porous ceramic sintered body) comprising a mixture of the remaining composition and a gas,
Gas: 2 to 50% by volume, remainder: mixed raw material for producing a porous ceramic sintered body having a high foaming rate, which contains gas in a ratio to become a mixed raw material B for producing a conventional porous ceramic sintered body,
(3) Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
In addition,
A plasticizer comprising at least one of polyhydric alcohols, fats and oils, ethers and esters: 0.1 to 15% by mass,
A mixed raw material for producing a porous ceramic sintered body (hereinafter, referred to as a conventional mixed raw material C for producing a porous ceramic sintered body) consisting of a mixture of water: the balance, and a gas,
Gas: 2 to 50% by volume, balance: mixed raw material for producing a porous ceramic sintered body with a high foaming rate, which contains gas at a ratio to be a mixed raw material C for producing a conventional porous ceramic sintered body,
(4) Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Surfactant: 0.05-5% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
In addition,
A plasticizer comprising at least one of polyhydric alcohols, fats and oils, ethers and esters: 0.1 to 15% by mass,
A mixed raw material for producing a porous ceramic sintered body (hereinafter referred to as a mixed raw material D for producing a conventional porous ceramic sintered body) comprising a mixture of water: the balance, and a gas,
Gas: 2 to 50% by volume, balance: mixed raw material for producing porous ceramic sintered body with a high foaming speed, which contains gas at a ratio to become mixed raw material D for producing conventional porous ceramic sintered body. is there.
この発明の多孔質セラミックス焼結体製造用混合原料に含まれる気体の割合を多孔質セラミックス焼結体製造用混合原料全体の２〜５０体積％にした理由は、気体の含有割合が２体積％未満では発泡時間の短縮には十分な効果がなく、一方、気体の含有割合が５０体積％を越えると、気泡が多すぎて発泡状態を維持することができなくなり、さらに塗工制御も難しくなるので好ましくない理由によるものである。 The reason why the ratio of the gas contained in the mixed raw material for producing the porous ceramic sintered body according to the present invention is 2 to 50% by volume of the entire mixed raw material for producing the porous ceramic sintered body is that the gas content is 2% by volume. If the ratio is less than 50% by volume, the foaming time is not sufficiently effective. On the other hand, if the gas content exceeds 50% by volume, there are too many bubbles to maintain the foamed state, and coating control becomes difficult. This is because of an unfavorable reason.
この発明の多孔質セラミックス焼結体製造用混合原料は、前記水溶性樹脂結合剤、セラミックス粉末、水を含有し、さらに必要に応じて界面活性剤および／または可塑剤を含有するスラリーを先ず作製し、このスラリーに前記炭素数５〜８の非水溶性炭化水素系有機溶剤を添加し、このスラリーに前記非水溶性炭化水素系有機溶剤を添加した配合体をミキサーなどの撹拌装置で撹拌すると同時にこの配合体にパイプに設けた微細な穴を通して気体が泡となるように気体を供給することにより作製することができる。また、前記得られたスラリーに初めに気体を混合してから炭素数５〜８の非水溶性炭化水素を混合撹拌して作製してもよい。
このとき使用する気体は、空気、酸素、窒素、アルゴン、ヘリウム、二酸化炭素、水素などが好ましい。
この発明の多孔質セラミックス焼結体製造用混合原料に含まれるセラミックス粉末は、いかなるセラミックスであってもよく、Ａｌ２Ｏ３、ＺｒＯ２、ＳｉＯ２、ＴｉＯ２、Ｓｉ３Ｎ４、ＡｌＮ、ムライト、サイアロン、Ｙ２Ｏ３およびこれらの複合体からなるセラミックス粉末であることが好ましい。
また、スラリーの特性や成形体の特性を向上させるために添加元素を加えてもよい。例えば、スラリーの保存性を向上させるために防腐剤を添加したり、成形体の強度を向上させるために結合助剤としてポリマー系化合物を加えてもよい。
The mixed raw material for producing the porous ceramic sintered body of the present invention contains the water-soluble resin binder, the ceramic powder, and water, and if necessary, firstly prepares a slurry containing a surfactant and / or a plasticizer. Then, the water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms is added to the slurry, and the mixture obtained by adding the water-insoluble hydrocarbon organic solvent to the slurry is stirred with a stirring device such as a mixer. At the same time, it can be produced by supplying gas so that the gas becomes bubbles through fine holes provided in the pipe. Alternatively, the slurry may be prepared by first mixing a gas with the obtained slurry and then mixing and stirring the water-insoluble hydrocarbon having 5 to 8 carbon atoms.
The gas used at this time is preferably air, oxygen, nitrogen, argon, helium, carbon dioxide, hydrogen or the like.
The ceramic powder contained in the mixed raw material for producing the porous ceramic sintered body of the present invention may be any ceramic, and Al 2 O 3 , ZrO 2 , SiO 2 , TiO 2 , Si 3 N 4 , AlN, mullite. Ceramic powder composed of sialon, Y 2 O 3 and a composite thereof is preferable.
Further, an additive element may be added in order to improve the properties of the slurry and the molded product. For example, a preservative may be added to improve the storage stability of the slurry, or a polymer compound may be added as a binding aid to improve the strength of the molded body.
この発明の多孔質セラミックス焼結体製造用混合原料を使用することにより従来の多孔質セラミックス焼結体製造用混合原料に比べて一層短時間で発泡することから、微細で均一な大きさの気孔を有する多孔質セラミックスを一層短時間で製造することができる。 By using the mixed raw material for producing the porous ceramic sintered body according to the present invention, the foaming is performed in a shorter time than the conventional mixed raw material for producing the porous ceramic sintered body. Can be produced in a shorter time.
セラミックス粉末として、平均粒径：０．２６μｍのＡｌ２Ｏ３粉末、平均粒径：０．３１μｍのＴｉＯ２粉末、平均粒径：０．１５μｍのＳｉＯ２粉末、平均粒径：０．５８μｍのＺｒＯ２粉末を用意した。
さらに、発泡剤としてヘキサン、水溶性樹脂結合剤としてメチルセルロース、ヒドロキシプロピルメチルセルロース、界面活性剤としてドデシルベンゼンスルホン酸ナトリウム、可塑剤としてグリセリンを用意し、さらに水を用意した。
As ceramic powder, an average particle diameter: 0.26 μm Al 2 O 3 powder, an average particle diameter: 0.31 μm TiO 2 powder, an average particle diameter: 0.15 μm SiO 2 powder, an average particle diameter: 0.58 μm ZrO 2 powder was prepared.
Furthermore, hexane was prepared as a foaming agent, methylcellulose and hydroxypropylmethylcellulose as a water-soluble resin binder, sodium dodecylbenzenesulfonate as a surfactant, glycerin as a plasticizer, and water.
実施例１
先に用意したＡｌ２Ｏ３粉末、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロースおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌することによりＡｌ２Ｏ３粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロース：６．５質量％、残部：水からなる従来多孔質セラミックス焼結体製造用混合原料Ａを作製した。
Example 1
Into the slurry obtained by mixing the Al 2 O 3 powder prepared previously, hydroxypropylmethylcellulose and water as a water-soluble resin binder, and further a water-insoluble hydrocarbon-based organic solvent having 5 to 8 carbon atoms (foaming agent) Hexane is added to prepare a blend, and this blend is stirred with a mixer to obtain Al 2 O 3 powder: 60% by mass, a water-insoluble hydrocarbon-based organic solvent having 5 to 8 carbon atoms (foaming agent) As a water-soluble resin binder, a mixed raw material A for producing a conventional porous ceramic sintered body was prepared, consisting of hydroxypropylmethylcellulose: 6.5% by mass and the balance: water.
先に用意したＡｌ２Ｏ３粉末、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロースおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌すると同時にこの配合体の中に直径：０．５ｍｍの微細な穴を５０個設けたパイプから空気を供給し、空気の供給量を調節しながら撹拌を続けることにより、Ａｌ２Ｏ３粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロース：６．５質量％、残部：水からなるスラリーに空気を導入し、表１に示される空気含有量を有し、残部が従来多孔質セラミックス焼結体製造用混合原料Ａからなる本発明多孔質セラミックス焼結体製造用混合原料１〜５、比較多孔質セラミックス焼結体製造用混合原料１〜２を作製した。 Into the slurry obtained by mixing the Al 2 O 3 powder prepared previously, hydroxypropylmethylcellulose and water as a water-soluble resin binder, and further a water-insoluble hydrocarbon-based organic solvent having 5 to 8 carbon atoms (foaming agent) Hexane is added to prepare a blend, and the blend is stirred with a mixer, and at the same time, air is supplied from a pipe having 50 fine holes with a diameter of 0.5 mm in the blend. By continuing stirring while adjusting the supply amount, Al 2 O 3 powder: 60% by mass, hexane: 1.8% by mass as a water-insoluble hydrocarbon-based organic solvent (foaming agent) having 5 to 8 carbon atoms, water-soluble As a functional resin binder, air was introduced into a slurry composed of hydroxypropylmethylcellulose: 6.5% by mass, balance: water, and had the air content shown in Table 1, with the balance being a conventional porous ceramic. Scan sintered body prepared for mixing consisting raw material A present invention porous ceramic sintered body prepared for mixing raw materials 1-5 to prepare a comparative porous ceramics sintered body for producing mixed raw material 1-2.
これら従来多孔質セラミックス焼結体製造用混合原料Ａ、比較多孔質セラミックス焼結体製造用混合原料１〜２および本発明多孔質セラミックス焼結体製造用混合原料１〜５をそれぞれ縦：２００ｍｍ、横：２００ｍｍ、厚さ１ｍｍの寸法を有するＰＥＴ樹脂板の片面全面に厚さ：０．３ｍｍとなるように塗工し、この塗工膜を湿度：９０％、温度：４５℃の条件に保持し、この塗工膜が発泡して厚さ：１．２ｍｍになるまでの時間を測定し、その結果を表１に示した。 These mixed raw materials A for producing a conventional porous ceramic sintered body, mixed raw materials 1 to 2 for producing a comparative porous ceramic sintered body, and mixed raw materials 1 to 5 for producing a porous ceramic sintered body of the present invention are each longitudinal: 200 mm, Horizontal: 200 mm, 1 mm thick PET resin plate with one side of the entire surface coated with a thickness of 0.3 mm, and this coated film is maintained at a humidity of 90% and a temperature of 45 ° C. Then, the time until the coating film foamed to a thickness of 1.2 mm was measured, and the results are shown in Table 1.
表１に示される結果から、本発明多孔質セラミックス焼結体製造用混合原料１〜５の塗工膜が発泡して１．２ｍｍになるまでに要する時間は、従来多孔質セラミックス焼結体製造用混合原料Ａの塗工膜が発泡して１．２ｍｍになるまでに要する時間に比べて格段に短いことがわかる。しかし、比較多孔質セラミックス焼結体製造用混合原料１の塗工膜が発泡して１．２ｍｍになるまでに要する時間はやや長く、一方、空気の含有量が５０体積％を越える空気を含む比較多孔質セラミックス焼結体製造用混合原料２は塗工膜の表面に大きな凹凸ができるので塗工制御が難しくなり好ましくないことがわかる。 From the results shown in Table 1, the time required for the coating film of the mixed raw materials 1 to 5 for producing the porous ceramic sintered body of the present invention to foam to 1.2 mm is the conventional production of the porous ceramic sintered body. It can be seen that the coating film of the mixed raw material A is much shorter than the time required for foaming to 1.2 mm. However, the time required for the coating film of the mixed raw material 1 for producing the comparative porous ceramic sintered body to foam to 1.2 mm is slightly longer, while the air content includes air exceeding 50% by volume. It can be seen that the mixed raw material 2 for producing the comparative porous ceramic sintered body is not preferable because the surface of the coating film has large irregularities, which makes coating control difficult.
実施例２
先に用意したＴｉＯ２粉末、水溶性樹脂結合剤としてメチルセルロース、界面活性剤としてドデシルベンゼンスルホン酸ナトリウムおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌することによりＴｉＯ２粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてメチルセルロース：６．５質量％、界面活性剤としてドデシルベンゼンスルホン酸ナトリウム：２．０質量％、残部：水からなる従来多孔質セラミックス焼結体製造用混合原料Ｂを作製した。
Example 2
TiO 2 powder prepared in advance, methylcellulose as a water-soluble resin binder, sodium dodecylbenzenesulfonate as a surfactant and water, and a water-insoluble hydrocarbon system having 5 to 8 carbon atoms. Hexane is added as an organic solvent (foaming agent) to prepare a blend, and this blend is stirred with a mixer to obtain a TiO 2 powder: 60% by mass, a water-insoluble hydrocarbon-based organic solvent having 5 to 8 carbon atoms. Conventionally composed of 1.8% by mass of hexane (foaming agent), 6.5% by mass of methylcellulose as a water-soluble resin binder, 2.0% by mass of sodium dodecylbenzenesulfonate as a surfactant, and the balance: water Mixed raw material B for producing a ceramic sintered body was produced.
先に用意したＴｉＯ２粉末、水溶性樹脂結合剤としてメチルセルロース、界面活性剤としてドデシルベンゼンスルホン酸ナトリウムおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌すると同時にこの配合体に直径：０．５ｍｍの微細な穴を５０個設けたパイプから空気を供給し、空気の供給量を調節しながら撹拌を続けることにより、ＴｉＯ２粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてメチルセルロース：６．５質量％、残部：水からなるスラリーに空気を導入し、表２に示される空気含有量を有し、残部が従来多孔質セラミックス焼結体製造用混合原料Ｂからなる本発明多孔質セラミックス焼結体製造用混合原料６〜１０、比較多孔質セラミックス焼結体製造用混合原料３〜４を作製した。 TiO 2 powder prepared in advance, methylcellulose as a water-soluble resin binder, sodium dodecylbenzenesulfonate as a surfactant and water, and a water-insoluble hydrocarbon system having 5 to 8 carbon atoms. Hexane is added as an organic solvent (foaming agent) to prepare a blend, and this blend is stirred with a mixer and air is supplied from a pipe having 50 fine holes of 0.5 mm in diameter. Then, by continuing stirring while adjusting the supply amount of air, TiO 2 powder: 60% by mass, hexane: 1.8% by mass as a water-insoluble hydrocarbon organic solvent (foaming agent) having 5 to 8 carbon atoms As a water-soluble resin binder, methyl cellulose: 6.5% by mass, balance: air is introduced into a slurry comprising water, and the air content is shown in Table 2, with the balance being conventionally porous. La Mix sintered body prepared for a mixed raw material B present invention porous ceramic sintered body prepared for mixing raw materials 6-10 to prepare a comparative porous ceramics sintered body for producing mixed raw material 3-4.
これら従来多孔質セラミックス焼結体製造用混合原料Ｂ、比較多孔質セラミックス焼結体製造用混合原料３〜４および本発明多孔質セラミックス焼結体製造用混合原料６〜１０をそれぞれＰＥＴ樹脂板の表面に厚さ：０．３ｍｍとなるように塗工し、この塗工膜を湿度：９０％、温度：４５℃の条件に保持し、この塗工膜が発泡して厚さ：１．２ｍｍになるまでの時間を測定し、その結果を表２に示した。 The conventional mixed raw material B for manufacturing a porous ceramic sintered body, the mixed raw material 3-4 for manufacturing a comparative porous ceramic sintered body, and the mixed raw material 6-10 for manufacturing the porous ceramic sintered body of the present invention are respectively made of PET resin plates. The surface was coated to a thickness of 0.3 mm, and this coated film was maintained at a humidity of 90% and a temperature of 45 ° C., and the coated film was foamed to a thickness of 1.2 mm. The time until it was measured was measured, and the results are shown in Table 2.
表２に示される結果から、本発明多孔質セラミックス焼結体製造用混合原料６〜１０の塗工膜が発泡して１．２ｍｍになるまでに要する時間は、従来多孔質セラミックス焼結体製造用混合原料Ｂの塗工膜が発泡して１．２ｍｍになるまでに要する時間に比べて格段に短いことがわかる。しかし、比較多孔質セラミックス焼結体製造用混合原料３の塗工膜が発泡して１．２ｍｍになるまでに要する時間はやや長く、一方、空気の含有量が５０体積％を越える空気を含む比較多孔質セラミックス焼結体製造用混合原料４は塗工膜の表面に大きな凹凸ができるので塗工制御が難しくなり好ましくないことがわかる。 From the results shown in Table 2, the time required for the coating film of the mixed raw materials 6 to 10 for producing the porous ceramic sintered body of the present invention to foam to 1.2 mm is the conventional production of porous ceramic sintered body. It can be seen that the coating film of the mixed raw material B is much shorter than the time required for foaming to 1.2 mm. However, the time required for the coating film of the mixed raw material 3 for producing the comparative porous ceramic sintered body to foam to 1.2 mm is slightly longer, while the air content includes air exceeding 50% by volume. It can be seen that the mixed raw material 4 for producing the comparative porous ceramic sintered body is not preferable because the surface of the coating film has large irregularities, which makes coating control difficult.
実施例３
先に用意したＳｉＯ２粉末、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロース、可塑剤としてグリセリンおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌することによりＳｉＯ２粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロース：６．５質量％、可塑剤としてグリセリン：２．５質量％、残部：水からなる従来多孔質セラミックス焼結体製造用混合原料Ｃを作製した。
Example 3
Into the slurry obtained by mixing the previously prepared SiO 2 powder, hydroxypropylmethylcellulose as the water-soluble resin binder, glycerin and water as the plasticizer, a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms ( Hexane is added as a foaming agent) to prepare a blend, and this blend is stirred with a mixer to obtain SiO 2 powder: 60% by mass, a water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms (foaming agent) ): Hexane: 1.8% by mass, water-soluble resin binder: hydroxypropylmethylcellulose: 6.5% by mass, plasticizer: glycerin: 2.5% by mass, balance: water A mixed raw material C was prepared.
さらに、先に用意したＳｉＯ２粉末、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロース、可塑剤としてグリセリンおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌すると同時にこの配合体に直径：０．５ｍｍの微細な穴を５０個設けたパイプから空気を供給し、空気の供給量を調節しながら撹拌を続けることにより、ＳｉＯ２粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてヒドロキシプロピルメチルセルロース：６．５質量％、可塑剤としてグリセリン：２．５質量％、残部：水からなるスラリーに空気を導入し、表３に示される空気含有量を有し、残部が従来多孔質セラミックス焼結体製造用混合原料Ｃからなる本発明多孔質セラミックス焼結体製造用混合原料１１〜１５、比較多孔質セラミックス焼結体製造用混合原料５〜６を作製した。 Further, the previously prepared SiO 2 powder, hydroxypropylmethylcellulose as a water-soluble resin binder, glycerin and water as a plasticizer, and a water-insoluble hydrocarbon-based organic material having 5 to 8 carbon atoms. Hexane is added as a solvent (foaming agent) to prepare a blend, and the blend is stirred with a mixer, and at the same time, air is supplied from a pipe having 50 fine holes of 0.5 mm in diameter to the blend. , By continuing stirring while adjusting the supply amount of air, SiO 2 powder: 60% by mass, hexane: 1.8% by mass as a water-insoluble hydrocarbon-based organic solvent (foaming agent) having 5 to 8 carbon atoms, Hydroxypropyl methylcellulose as water-soluble resin binder: 6.5% by mass, glycerin as plasticizer: 2.5% by mass, remainder: air is introduced into slurry consisting of water The mixed raw materials 11 to 15 for producing the porous ceramic sintered body according to the present invention, which have the air content shown in Table 3 and the balance is the mixed raw material C for producing the conventional porous ceramic sintered body, and comparative porous ceramic firing Mixed raw materials 5 to 6 for producing a knot were produced.
これら従来多孔質セラミックス焼結体製造用混合原料Ｃ、比較多孔質セラミックス焼結体製造用混合原料５〜６および本発明多孔質セラミックス焼結体製造用混合原料１１〜１５をそれぞれＰＥＴ樹脂板の表面に厚さ：０．３ｍｍとなるように塗工し、この塗工膜を湿度：９０％、温度：４５℃の条件に保持し、この塗工膜が発泡して厚さ：１．２ｍｍになるまでの時間を測定し、その結果を表３に示した。 The conventional mixed raw material C for porous ceramic sintered body manufacturing, the mixed raw material 5-6 for comparative porous ceramic sintered body manufacturing, and the mixed raw material 11-15 for manufacturing the porous ceramic sintered body of the present invention are respectively made of PET resin plates. The surface was coated to a thickness of 0.3 mm, and this coated film was maintained at a humidity of 90% and a temperature of 45 ° C., and the coated film was foamed to a thickness of 1.2 mm. The time until it was measured was measured, and the results are shown in Table 3.
表３に示される結果から、本発明多孔質セラミックス焼結体製造用混合原料１１〜１５の塗工膜が発泡して１．２ｍｍになるまでに要する時間は、従来多孔質セラミックス焼結体製造用混合原料Ｃの塗工膜が発泡して１．２ｍｍになるまでに要する時間に比べて格段に短いことがわかる。しかし、比較多孔質セラミックス焼結体製造用混合原料５の塗工膜が発泡して１．２ｍｍになるまでに要する時間はやや長く、一方、空気の含有量が５０体積％を越える空気を含む比較多孔質セラミックス焼結体製造用混合原料６は塗工膜の表面に大きな凹凸ができるので塗工制御が難しくなり好ましくないことがわかる。 From the results shown in Table 3, the time required for the coating film of the mixed raw materials 11 to 15 for producing the porous ceramic sintered body of the present invention to foam to 1.2 mm is the conventional production of the porous ceramic sintered body. It can be seen that the time required for the coating film of the mixed raw material C to foam to 1.2 mm is much shorter. However, the time required for the coating film of the mixed raw material 5 for producing the comparative porous ceramic sintered body to foam to 1.2 mm is slightly longer, while the air content includes air exceeding 50% by volume. It can be seen that the mixed raw material 6 for producing the comparative porous ceramic sintered body is not preferable because the surface of the coating film has large irregularities, which makes coating control difficult.
実施例４
先に用意したＺｒＯ２粉末、水溶性樹脂結合剤としてメチルセルロース、界面活性剤としてドデシルベンゼンスルホン酸ナトリウム、可塑剤としてグリセリンおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌することにより平均粒径１０μｍのＡｇ粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてメチルセルロース：６．５質量％、界面活性剤としてドデシルベンゼンスルホン酸ナトリウム：２．０質量％、可塑剤としてグリセリン：２．５質量％、残部：水からなる従来多孔質セラミックス焼結体製造用混合原料Ｄを作製した。
Example 4
The slurry prepared by mixing the previously prepared ZrO 2 powder, methylcellulose as the water-soluble resin binder, sodium dodecylbenzenesulfonate as the surfactant, glycerin and water as the plasticizer, Hexane is added as a water-soluble hydrocarbon-based organic solvent (foaming agent) to prepare a blend, and this blend is stirred with a mixer to obtain an Ag powder having an average particle size of 10 μm: 60% by mass, and having 5 to 8 carbon atoms. As water-insoluble hydrocarbon organic solvent (foaming agent), hexane: 1.8% by mass, water-soluble resin binder as methylcellulose: 6.5% by mass, surfactant as sodium dodecylbenzenesulfonate: 2.0% by mass %, Glycerin as a plasticizer: 2.5% by mass, balance: water, a mixed raw material D for producing a conventional porous ceramic sintered body was produced.
さらに、先に用意したＺｒＯ２粉末、水溶性樹脂結合剤としてメチルセルロース、界面活性剤としてドデシルベンゼンスルホン酸ナトリウム、可塑剤としてグリセリンおよび水を混合して得られたスラリーに、さらに炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサンを添加して配合体を作製し、この配合体をミキサーで撹拌すると同時にこの配合体に直径：０．５ｍｍの微細な穴を５０個設けたパイプから空気を供給し、空気の供給量を調節しながら撹拌を続けることにより、ＺｒＯ２粉末：６０質量％、炭素数５〜８の非水溶性炭化水素系有機溶剤（発泡剤）としてヘキサン：１．８質量％、水溶性樹脂結合剤としてメチルセルロース：６．５質量％、可塑剤としてグリセリン：２．５質量％、残部：水からなるスラリーに空気を導入し、表４に示される空気含有量を有し、残部が従来多孔質セラミックス焼結体製造用混合原料Ｄからなる本発明多孔質セラミックス焼結体製造用混合原料１６〜２０、比較多孔質セラミックス焼結体製造用混合原料７〜８を作製した。 Further, the previously prepared ZrO 2 powder, methylcellulose as a water-soluble resin binder, sodium dodecylbenzenesulfonate as a surfactant, glycerin and water as a plasticizer, and further having 5 to 8 carbon atoms. As a water-insoluble hydrocarbon-based organic solvent (foaming agent), hexane was added to prepare a blend, and the blend was stirred with a mixer and at the same time 50 fine holes with a diameter of 0.5 mm were formed in the blend. By supplying air from the provided pipe and continuing stirring while adjusting the supply amount of air, ZrO 2 powder: 60% by mass, as a water-insoluble hydrocarbon-based organic solvent (foaming agent) having 5 to 8 carbon atoms Hexane: 1.8% by mass, methylcellulose as water-soluble resin binder: 6.5% by mass, glycerin as plasticizer: 2.5% by mass, balance: water Air is introduced into Lee, and has the air content shown in Table 4, with the balance being the mixed raw material 16-20 for manufacturing the porous ceramic sintered body according to the present invention, which consists of the mixed raw material D for manufacturing conventional porous ceramic sintered body. The mixed raw materials 7 to 8 for producing the comparative porous ceramic sintered body were produced.
これら従来多孔質セラミックス焼結体製造用混合原料Ｄ、比較多孔質セラミックス焼結体製造用混合原７〜８および本発明多孔質セラミックス焼結体製造用混合原料１６〜２０をそれぞれＰＥＴ樹脂板の表面に厚さ：０．３ｍｍとなるように塗工し、この塗工膜を湿度：９０％、温度：４５℃の条件に保持し、この塗工膜が発泡して厚さ：１．２ｍｍになるまでの時間を測定し、その結果を表４に示した。 The conventional mixed raw material D for manufacturing a porous ceramic sintered body, the mixed raw materials 7 to 8 for manufacturing a comparative porous ceramic sintered body, and the mixed raw material 16 to 20 for manufacturing the porous ceramic sintered body of the present invention are respectively made of PET resin plates. The surface was coated to a thickness of 0.3 mm, and this coated film was maintained at a humidity of 90% and a temperature of 45 ° C., and the coated film was foamed to a thickness of 1.2 mm. The time until it was measured was measured, and the results are shown in Table 4.
表４に示される結果から、本発明多孔質セラミックス焼結体製造用混合原料１６〜２０の塗工膜が発泡して１．２ｍｍになるまでに要する時間は、従来多孔質セラミックス焼結体製造用混合原料Ｄの塗工膜が発泡して１．２ｍｍになるまでに要する時間に比べて格段に短いことがわかる。しかし、比較多孔質セラミックス焼結体製造用混合原料７の塗工膜が発泡して１．２ｍｍになるまでに要する時間はやや長く、一方、空気の含有量が５０体積％を越える空気を含む比較多孔質セラミックス焼結体製造用混合原料８は塗工膜の表面に大きな凹凸ができるので塗工制御が難しくなり好ましくないことがわかる。 From the results shown in Table 4, the time required for the coating film of the mixed raw material 16 to 20 for producing the porous ceramic sintered body of the present invention to foam to 1.2 mm is the conventional production of the porous ceramic sintered body. It can be seen that the coating film of the mixed raw material D is much shorter than the time required for foaming to 1.2 mm. However, the time required for the coating film of the mixed raw material 7 for producing the comparative porous ceramic sintered body to foam to 1.2 mm is slightly longer, while the air content includes air exceeding 50% by volume. It can be seen that the mixed raw material 8 for producing the comparative porous ceramic sintered body is not preferable because large unevenness is formed on the surface of the coating film, which makes coating control difficult.
Claims (4)
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、
水：残部からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ａという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ａとなる割合で気体を含むことを特徴とする発泡速度の速い多孔質セラミックス焼結体製造用混合原料。 Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
Containing
Water: A mixed raw material for producing a porous ceramic sintered body (hereinafter referred to as a mixed raw material A for producing a conventional porous ceramic sintered body) consisting of a mixture of the remaining composition and a gas,
Gas: 2 to 50% by volume, balance: A mixed raw material for producing a porous ceramic sintered body with a high foaming speed, characterized by containing gas in a ratio to be a mixed raw material A for producing a conventional porous ceramic sintered body.
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
界面活性剤：０．０５〜５質量％、
を含有し、
水：残部からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ｂという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ｂとなる割合で気体を含むことを特徴とする発泡速度の速い多孔質セラミックス焼結体製造用混合原料。 Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
Surfactant: 0.05-5% by mass,
Containing
Water: A mixed raw material for producing a porous ceramic sintered body (hereinafter referred to as a mixed raw material B for producing a conventional porous ceramic sintered body) comprising a mixture of the remaining composition and a gas,
Gas: 2 to 50% by volume, balance: Conventional mixed ceramic raw material for producing a porous ceramic sintered body having a high foaming speed, which contains gas in a ratio to be a mixed raw material B for producing a porous ceramic sintered body.
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、さらに、
多価アルコール、油脂、エーテルおよびエステルの内の少なくとも１種からなる可塑剤：０．１〜１５質量％を含有し、
水：残部、からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ｃという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ｃとなる割合で気体を含むことを特徴とする発泡速度の速い多孔質セラミックス焼結体製造用混合原料。 Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
In addition,
A plasticizer comprising at least one of polyhydric alcohols, fats and oils, ethers and esters: 0.1 to 15% by mass,
A mixed raw material for producing a porous ceramic sintered body (hereinafter, referred to as a conventional mixed raw material C for producing a porous ceramic sintered body) consisting of a mixture of water: the balance, and a gas,
Gas: 2 to 50% by volume, balance: Conventional mixed ceramic raw material for producing a porous ceramic sintered body having a high foaming speed, which contains gas in a ratio to be a mixed raw material C for producing a porous ceramic sintered body.
界面活性剤：０．０５〜５質量％、
水溶性樹脂結合剤：０．５〜２０質量％、
平均粒径０．０５〜５μｍのセラミックス粉末：５〜７０質量％、
を含有し、さらに、
多価アルコール、油脂、エーテルおよびエステルの内の少なくとも１種からなる可塑剤：０．１〜１５質量％を含有し、
水：残部、からなる配合組成の混合物からなる多孔質セラミックス焼結体製造用混合原料（以下、従来多孔質セラミックス焼結体製造用混合原料Ｄという）と気体とが、
気体：２〜５０体積％、残部：従来多孔質セラミックス焼結体製造用混合原料Ｄとなる割合で気体を含むことを特徴とする発泡速度の速い多孔質セラミックス焼結体製造用混合原料。 Water-insoluble hydrocarbon organic solvent having 5 to 8 carbon atoms: 0.05 to 10% by mass,
Surfactant: 0.05-5% by mass,
Water-soluble resin binder: 0.5 to 20% by mass,
Ceramic powder having an average particle size of 0.05 to 5 μm: 5 to 70% by mass,
In addition,
A plasticizer comprising at least one of polyhydric alcohols, fats and oils, ethers and esters: 0.1 to 15% by mass,
A mixed raw material for producing a porous ceramic sintered body (hereinafter referred to as a mixed raw material D for producing a conventional porous ceramic sintered body) comprising a mixture of water: the balance, and a gas,
Gas: 2 to 50% by volume, balance: Conventional mixed ceramic raw material for producing a porous ceramic sintered body having a high foaming speed, which contains gas in a ratio to be a mixed raw material D for producing a porous ceramic sintered body.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013087034A (en) * | 2011-10-20 | 2013-05-13 | Noritake Co Ltd | Method for producing ceramic bonded body |
| CN115340400A (en) * | 2022-09-07 | 2022-11-15 | 湖南大学 | Ceramic green body and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07188806A (en) * | 1993-12-27 | 1995-07-25 | Toyota Motor Corp | Production of strengthened material preform for composite material |
| JPH09157066A (en) * | 1995-12-04 | 1997-06-17 | Mitsubishi Materials Corp | Production of porous ceramic sintered body |
| JP2003130833A (en) * | 2001-10-23 | 2003-05-08 | Mitsubishi Materials Corp | Humidity sensor, and manufacturing method therefor |
| JP2003128480A (en) * | 2001-10-23 | 2003-05-08 | Mitsubishi Materials Corp | Oxygen sensor and its manufacturing method |
| JP2006274196A (en) * | 2005-03-30 | 2006-10-12 | Sanyo Chem Ind Ltd | Concrete substrate regulator |
| JP2006299405A (en) * | 2005-03-24 | 2006-11-02 | Mitsubishi Materials Corp | Method for producing porous metal or porous ceramics |
-
2006
- 2006-11-10 JP JP2006304773A patent/JP4844890B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07188806A (en) * | 1993-12-27 | 1995-07-25 | Toyota Motor Corp | Production of strengthened material preform for composite material |
| JPH09157066A (en) * | 1995-12-04 | 1997-06-17 | Mitsubishi Materials Corp | Production of porous ceramic sintered body |
| JP2003130833A (en) * | 2001-10-23 | 2003-05-08 | Mitsubishi Materials Corp | Humidity sensor, and manufacturing method therefor |
| JP2003128480A (en) * | 2001-10-23 | 2003-05-08 | Mitsubishi Materials Corp | Oxygen sensor and its manufacturing method |
| JP2006299405A (en) * | 2005-03-24 | 2006-11-02 | Mitsubishi Materials Corp | Method for producing porous metal or porous ceramics |
| JP2006274196A (en) * | 2005-03-30 | 2006-10-12 | Sanyo Chem Ind Ltd | Concrete substrate regulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013087034A (en) * | 2011-10-20 | 2013-05-13 | Noritake Co Ltd | Method for producing ceramic bonded body |
| CN115340400A (en) * | 2022-09-07 | 2022-11-15 | 湖南大学 | Ceramic green body and preparation method and application thereof |
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