JP2010513073A - セラミックス押出用のセルローエーテルを含む添加剤 - Google Patents
セラミックス押出用のセルローエーテルを含む添加剤 Download PDFInfo
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- JP2010513073A JP2010513073A JP2009541803A JP2009541803A JP2010513073A JP 2010513073 A JP2010513073 A JP 2010513073A JP 2009541803 A JP2009541803 A JP 2009541803A JP 2009541803 A JP2009541803 A JP 2009541803A JP 2010513073 A JP2010513073 A JP 2010513073A
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Classifications
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- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6021—Extrusion moulding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Description
(A)、(B)及び(C)の総量に基づく成分(A)の割合は、好ましくは10〜91重量%、特に好ましくは18〜91重量%、極めて好ましくは25〜91重量%である。
炭化珪素SiC Dunkel Mikro F280(ESK-SiC GmbH,Frechen,Germany製)35重量部、炭化珪素SiC Dunkel Mikro F360(ESK-SiC GmbH,Frechen,Germany製)35重量部、炭化珪素SiC SM10(ESK-SiC GmbH,Frechen,Germany製)30重量部及び本発明に係る添加剤4重量部(炭化珪素100重量部に基づく)を最初に、均質になるまで流動床ミキサー(Lodige、Germany)中で乾燥混合し、続いて20°Cの水を加え、塊を更に混合し、混練機(AMK,Aachen,Germany製)中で数分間混練した。次いで、塊を直ちに、20℃に保持された一軸スクリュー押出機(Handle 8D,スクリュー直径8cm,Handle,Muhlacker,Germany製)のフィードトラフ中に導入した。塊を多孔板に通して押出し、ガス抜きのために真空室に通した。次に、最初に、これを歪み変形させ(即ち、凝集体の塊をばらばらにするためにメッシュサイズ0.4又は0.2mmのスクリーンに通し)、続いてハニカムダイに通して押出し、コンベヤーベルト上に排出した。滑剤としての働きが充分なセルロースエーテルと不充分なセルロースエーテルの差を見ることができるように、実験の開始後に押出機上において冷却を切り、実験の間の塊の加熱を測定した。
本発明によらない比較実験において、純粋なセルロースエーテル単独では、それほど経済的でなく且つ技術的に有利でない押出結果を生じることがわかる。押出圧力が高いほど、引き起こす摩擦が大きいので、プラントの維持コストに対する悪影響が大きい。本発明に係るセルロースエーテル混合物の利点もまた、押出塊の凝集力及び押出ハニカムの屈曲時の亀裂形成の点から明らかである。ハニカムは、押出機から乾燥室を経て炉までの輸送の間に増加された機械的応力に供され、それにより、凝集力がより良く且つ亀裂をより生じにくい場合に不良品の割合の減少を期待できるようになる。
Claims (14)
- 焼成若しくは焼結の結果として固化する、セラミック塊又は他の塊を、個別成分として又は予備混合添加剤としての、(A)少なくとも1種のセルロースエーテル、(B)少なくとも1種の可塑剤及び(C)少なくとも1種の脱泡剤と混合し、引き続いてそれを押出すことを含んでなる、焼成若しくは焼結の結果として固化する、セラミック塊又は他の塊の押出方法。
- 焼成若しくは焼結の結果として固化する、前記のセラミック塊又は他の塊が、アルミナ;窒化アルミニウム及び炭化アルミニウム;カオリン;コーディエライト;ムライト;炭化珪素;ホウ化珪素;窒化珪素;二酸化チタン;炭化チタン;炭化ホウ素;酸化ホウ素;シリケート及びシート状シリケート、例えばクレイ、ベントナイト、タルク;珪素金属;カーボンブラック;グラファイト;粉末ガラス;希土類酸化物及びゼオライトからなる群から選ばれた少なくとも1種の化合物を含む請求項1に記載の方法。
- 20℃において2重量%の水溶液中で測定した粘度が400〜200000mPa・sであるセルロースエーテルをセルロースエーテル(A)として用いる請求項1又は2に記載の方法。
- ポリカルボン酸コポリマー及び/又はその塩を可塑剤(B)として用いる請求項1〜3のいずれかに記載の方法。
- ポリエーテルを基材とする脱泡剤を脱泡剤(C)として用いる請求項1〜4のいずれかに記載の方法。
- アルキレングリコールホモポリマー、コポリマー、ターポリマー又はブロックコポリマーを、ポリエーテルを基材とする脱泡剤として用いる請求項5に記載の方法。
- (A)、(B)及び(C)の総量に基づき、成分(A)の割合が10〜91重量%であり、成分(B)の割合が8〜70重量%であり且つ成分(C)の割合が1〜20重量%である請求項1〜6のいずれかに記載の方法。
- 混合物と見た(A)、(B)及び(C)の使用量が、焼成若しくは焼結の結果として固化する、セラミック塊又は他の塊の総配合物に基づき1〜8重量%である請求項1〜7のいずれかに記載の方法。
- 前記押出物の熱処理を押出後に実施する請求項1〜8のいずれかに記載の方法。
- 請求項1〜9のいずれかに記載の方法によって得られる押出物。
- 排ガス処理用のハニカム体として又は触媒としての請求項10に記載の押出物の使用。
- (A)少なくとも1種のセルロースエーテル、(B)少なくとも1種の可塑剤及び(C)少なくとも1種の脱泡剤を含んでなる、焼成若しくは焼結の結果として固化する、セラミック塊又は他の塊。
- (A)少なくとも1種のセルロースエーテル、(B)少なくとも1種の可塑剤及び(C)少なくとも1種の脱泡剤を含んでなる、請求項1〜9のいずれかに従って製造された、焼成若しくは焼結の結果として固化する、セラミック塊又は他の塊。
- (A)少なくとも1種のセルロースエーテル、(B)少なくとも1種の可塑剤及び(C)少なくとも1種の脱泡剤を含んでなる、焼成若しくは焼結の結果として固化する、セラミック塊又は他の塊の押出用添加剤。
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DE102006062141A DE102006062141A1 (de) | 2006-12-22 | 2006-12-22 | Celluloseetherhaltige Additive für die Keramikextrusion |
PCT/EP2007/010267 WO2008077451A2 (en) | 2006-12-22 | 2007-11-27 | Additives comprising cellulose ethers for ceramics extrusion |
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KR101793031B1 (ko) * | 2015-07-07 | 2017-11-02 | 한국세라믹기술원 | 고내마모성을 갖는 알루미나-그래핀 복합체의 제조방법 |
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JP5560081B2 (ja) * | 2010-03-30 | 2014-07-23 | 日本碍子株式会社 | セラミックス坏土、セラミックス成形体、セラミックス構造体及びこれらの製造方法 |
MX339803B (es) | 2010-04-26 | 2016-06-10 | Dow Global Tech Llc * | Composicion para cuerpos moldeados por extrusion. |
WO2019025544A1 (en) | 2017-08-02 | 2019-02-07 | Solvay Sa | METHOD FOR FORMING AN ADSORBENT CARBON SHAPED BODY AND SHAPED CRUDE BODY AND ADSORBENT CARBON BODIES OBTAINED THEREFROM |
WO2019108918A1 (en) * | 2017-11-30 | 2019-06-06 | Corning Incorporated | Ceramic articles with bleed-through barrier and methods of manufacture thereof |
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KR20090101283A (ko) | 2009-09-24 |
CN101636365A (zh) | 2010-01-27 |
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US20120276324A1 (en) | 2012-11-01 |
TW200837115A (en) | 2008-09-16 |
EP2125666A2 (en) | 2009-12-02 |
HUE048747T2 (hu) | 2020-08-28 |
PL2125666T3 (pl) | 2020-06-29 |
WO2008077451A2 (en) | 2008-07-03 |
EP2125666B1 (en) | 2019-12-25 |
AR064671A1 (es) | 2009-04-15 |
KR101429927B1 (ko) | 2014-08-13 |
WO2008077451A3 (en) | 2008-08-21 |
JP5443166B2 (ja) | 2014-03-19 |
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