WO2012132271A1 - 湿潤ブランケット - Google Patents
湿潤ブランケット Download PDFInfo
- Publication number
- WO2012132271A1 WO2012132271A1 PCT/JP2012/001714 JP2012001714W WO2012132271A1 WO 2012132271 A1 WO2012132271 A1 WO 2012132271A1 JP 2012001714 W JP2012001714 W JP 2012001714W WO 2012132271 A1 WO2012132271 A1 WO 2012132271A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- colloidal silica
- weight
- blanket
- wet
- wet blanket
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000008119 colloidal silica Substances 0.000 claims abstract description 77
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 44
- 230000002378 acidificating effect Effects 0.000 claims description 24
- 125000000129 anionic group Chemical group 0.000 claims description 22
- 125000002091 cationic group Chemical group 0.000 claims description 19
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 18
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 6
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 24
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 24
- 239000000835 fiber Substances 0.000 description 18
- 239000011575 calcium Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 239000011819 refractory material Substances 0.000 description 8
- 238000004090 dissolution Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000002504 physiological saline solution Substances 0.000 description 5
- 239000002738 chelating agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- -1 etc.) Inorganic materials 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 208000005156 Dehydration Diseases 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 150000001767 cationic compounds Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- FZFYOUJTOSBFPQ-UHFFFAOYSA-M dipotassium;hydroxide Chemical compound [OH-].[K+].[K+] FZFYOUJTOSBFPQ-UHFFFAOYSA-M 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/465—Coatings containing composite materials
- C03C25/47—Coatings containing composite materials containing particles, fibres or flakes, e.g. in a continuous phase
-
- 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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
-
- 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
- C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
- C04B35/62231—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on oxide ceramics
- C04B35/6224—Fibres based on silica
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
-
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
-
- 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
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
- F27D1/0009—Comprising ceramic fibre elements
- F27D1/0013—Comprising ceramic fibre elements the fibre elements being in the form of a folded blanket or a juxtaposition of folded blankets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2213/00—Glass fibres or filaments
- C03C2213/02—Biodegradable glass fibres
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/522—Oxidic
- C04B2235/5232—Silica or silicates other than aluminosilicates, e.g. quartz
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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
- 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
- C04B2235/616—Liquid infiltration of green bodies or pre-forms
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- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
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- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2631—Coating or impregnation provides heat or fire protection
Definitions
- the present invention relates to a wet blanket made of biosoluble inorganic fibers.
- a refractory material is provided on the inner wall surface of the heating chamber, and as this refractory material, for example, a blanket made of inorganic fibers is known.
- a flexible refractory material such as a blanket can be easily curvedly constructed according to the shape of the construction site even when the construction site has a complicated shape.
- the refractory material is required to have wind speed resistance, particularly when used as a furnace lining material. Moreover, after construction, it is required to exhibit desired strength and exhibit fire resistance.
- Patent Document 2 Although the invention described in Patent Document 2 relates to stucco, not a blanket, this document includes a biosoluble alkaline earth metal silicate fiber and an anionic colloidal silica having a pH of 4 to 7.
- This stucco has been disclosed by using anionic colloidal silica having a pH of 4 to 7 as a binder and further containing a chelating agent such as EDTA (ethylenediaminetetraacetic acid). It is described that it can be prevented.
- EDTA ethylenediaminetetraacetic acid
- the present invention is intended to provide a flexible fireproof material that can exhibit high strength after construction and is safe for the human body.
- the present inventors have conducted intensive studies. As a result, a flexible fireproof material obtained by impregnating and moistening a colloidal silica liquid into a blanket made of a biosoluble inorganic fiber is used. The present inventors have found that the problems can be solved and have completed the present invention.
- a wet blanket which is formed by impregnating a wet colloidal silica liquid into a blanket made of biosoluble inorganic fibers.
- the bio-soluble inorganic fibers about 66 wt% to about 82 wt% of SiO 2, from about 10 wt% to about 33 wt% of CaO, from about 1 wt% or less of MgO and less than about 3 wt% Al 2 O
- the bio-soluble inorganic fibers, about 66 wt% to about 82 wt% of SiO 2 from about 1 wt% to about 9 wt% of CaO, less than about 10 wt% to about 30 wt% of MgO and about 3 wt%
- the wet blanket according to any one of 1 to 6, which comprises Al 2 O 3 . 11.
- the wet blanket according to any one of 1 to 10 comprising about 10 parts by weight to about 200 parts by weight of the colloidal silica with respect to 100 parts by weight of the biosoluble inorganic fiber in terms of solid content.
- 12 The wet blanket according to any one of 1 to 11, wherein the solvent ratio is about 15 wt% to about 75 wt%.
- 13 A cured blanket obtained by curing the wet blanket according to any one of 1 to 12.
- a highly safe flexible refractory material capable of exhibiting high strength after construction can be provided.
- the present invention is a material (flexible refractory material) in which a blanket made of biologically soluble inorganic fibers is impregnated with a colloidal silica liquid and moistened. Because of the use of biosoluble fibers, there is little risk of health damage even if inhaled by the human body. By impregnating the colloidal silica liquid, wind resistance, bending strength, and the like can be increased when the coating is cured by drying, heating, or the like after construction. When the solvent is contained in the blanket, the solvent moves to the surface during drying, and the silica also moves to the surface. Therefore, the surface layer portion becomes rich in colloidal silica, thereby increasing the surface strength. Further, flexibility can be maintained in a wet state.
- biosoluble inorganic fiber constituting the blanket examples include those containing Ca element.
- the biosoluble fiber constituting the blanket contains Ca element in particular, Ca ions are eluted during storage and affect the stability of the colloidal silica. It became clear that it became easy to deteriorate. However, by impregnating colloidal silica, even if the biosoluble inorganic fiber constituting the blanket contains Ca element, the progress of deterioration can be suppressed even when stored for a long period of time.
- the biosoluble inorganic fiber may be an inorganic fiber having the following composition. Total of SiO 2 , ZrO 2 , Al 2 O 3 and TiO 2 50 wt% to 82 wt% Total of 18% to 50% by weight of alkali metal oxide and alkaline earth metal oxide
- the biosoluble inorganic fiber may be an inorganic fiber having the following composition. SiO 2 50 to 82% by weight Total 10 to 43% by weight of CaO and MgO
- Biologically soluble fibers can be broadly classified into Mg silicate fibers rich in MgO and Ca silicate fibers rich in CaO.
- the following composition can be illustrated as Mg silicate fiber. SiO 2 66-82% by weight CaO 1-9% by weight MgO 10-30% by weight Al 2 O 3 3 wt% or less Other oxides Less than 2 wt%
- the following composition can be illustrated as Ca silicate fiber.
- SiO 2 66-82 wt% (for example, it can be 68-80 wt%, 70-80 wt%, 71-80 wt% or 71-76 wt%)
- CaO 10-34% by weight (for example, it can be 18-32% by weight, 20-30% by weight, 20-27% by weight or 21-26% by weight)
- MgO 3 wt% or less eg, 1 wt% or less
- Al 2 O 3 5 wt% or less for example, 3.5 wt% or less, 3.4 wt% or less, or 3 wt% or less.
- Other oxides ⁇ 2% by weight
- the total of SiO 2 , CaO, MgO and Al 2 O 3 may be more than 98 wt% or more than 99 wt%.
- the biosoluble inorganic fiber includes alkali metal oxides (K 2 O, Na 2 O, Li 2 O, etc.), Sc, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb as other components. , Dy, Ho, Er, Tm, Yb, Lu, Y, or a mixture thereof, Fe 2 O 3 , ZrO 2 , TiO 2 , P 2 O 5 , B 2 O 3 , MnO, One or more of ZnO, SrO, BaO, Cr 2 O 3 and the like may or may not be included. Other oxides may be 1.0 wt% or less, 0.2 wt% or less, or 0.1 wt% or less, respectively.
- the alkali metal oxide may contain 1.0% by weight or less, 0.2% by weight or less, or 0.1% by weight or less of each oxide.
- the total of the alkali metal oxides may be 1.0% by weight or less, 0.2% by weight or less, or 0.1% by weight or less.
- the biosoluble fiber may further contain other components in addition to SiO 2 and an alkaline earth metal oxide (for example, at least one of MgO and CaO).
- an alkaline earth metal oxide for example, at least one of MgO and CaO.
- alumina Al 2 O 3
- titania TiO 2
- zirconia ZrO 2
- iron oxide Fe 2 O 3
- manganese oxide MnO
- K 2 O potassium oxide
- the biologically soluble inorganic fiber is, for example, an inorganic fiber having a physiological saline dissolution rate at 40 ° C. of 1% or more.
- the physiological saline dissolution rate is measured, for example, as follows. That is, first, 1 g of a sample prepared by pulverizing inorganic fibers to 200 mesh or less and 150 mL of physiological saline are placed in an Erlenmeyer flask (volume: 300 mL) and placed in an incubator at 40 ° C. Next, a horizontal vibration of 120 revolutions per minute is continuously applied to the Erlenmeyer flask for 50 hours.
- the concentration (mg / L) of each element contained in the filtrate obtained by filtration is measured with an ICP emission analyzer. Then, based on the measured concentration of each element and the content (% by weight) of each element in the inorganic fiber before dissolution, the physiological saline dissolution rate (%) is calculated. That is, for example, when the measurement element is silicon (Si), magnesium (Mg), calcium (Ca), and aluminum (Al), the physiological saline dissolution rate C (%) is calculated by the following equation.
- C (%) [filtrate amount (L) ⁇ (a1 + a2 + a3 + a4) ⁇ 100] / [weight of inorganic fiber before dissolution (mg) ⁇ (b1 + b2 + b3 + b4) / 100].
- a1, a2, a3 and a4 are the measured concentrations of silicon, magnesium, calcium and aluminum (mg / L), respectively, and b1, b2, b3 and b4 are respectively in the inorganic fibers before dissolution. It is content (weight%) of silicon, magnesium, calcium, and aluminum.
- the inorganic fiber that is the constituent material of the blanket preferably has an average fiber diameter of 10 ⁇ m or less, and more preferably 6 ⁇ m or less.
- the average fiber diameter was measured by measuring the width of 400 or more fibers randomly selected from a photograph (2000-5000 times magnification) taken with a scanning electron microscope (JSM-5800LV manufactured by JEOL). It means the average value calculated from the width.
- colloidal silica used in the present invention examples include those containing 17.5 to 19.0% by weight of SiO 2 and 1.5 to 2.7% by weight of Al 2 O 3 in terms of solid content. .
- colloidal silica acidic cationic colloidal silica can be used.
- acidic cationic colloidal silica When acidic cationic colloidal silica is used, heat resistance is excellent.
- Cationic colloidal silica means colloidal silica having a positive charge on the surface.
- examples of the cationic colloidal silica include those in which the surface of the anionic colloidal silica contains a compound of a polyvalent metal ion such as an aluminum ion or an organic cationic compound, and the surface of the silica particles is cationically charged. Can be mentioned.
- the acidic cationic colloidal silica liquid preferably has a pH of 2 to 6, more preferably 2 to 5, and still more preferably 4 to 5.
- alkaline anionic colloidal silica or acidic anionic colloidal silica can be used.
- alkaline anionic colloidal silica is impregnated into a blanket made of Ca silicate fiber, the heat resistance is enhanced.
- Anionic colloidal silica means colloidal silica having a negative charge on the surface.
- the alkaline anionic colloidal silica liquid preferably has a pH of 8 to 11, more preferably 9 to 11.
- the acidic anionic colloidal silica liquid preferably has a pH of 2 to 6, more preferably 2 to 5.
- a blanket impregnated with acidic cationic colloidal silica or alkaline anionic colloidal silica has better storage stability than a blanket impregnated with acidic anionic colloidal silica. This is presumably because gelation due to inorganic ions eluted from the inorganic fibers hardly occurs.
- the colloidal silica liquid to be impregnated into the blanket is suitably one having a solid content concentration of 1 to 40% by weight, more preferably 1 to 30% by weight, and 1 to 25% by weight. It is more appropriate.
- the solvent is usually water.
- the wet blanket usually contains 10 to 200 parts by weight of colloidal silica with respect to 100 parts by weight of inorganic fibers in terms of solid content.
- the acidic cationic colloidal silica is more preferably 10 to 180 parts by weight, and further preferably 30 to 150 parts by weight.
- the anionic colloidal silica is more preferably 10 to 180 parts by weight, further preferably 10 to 160 parts by weight, and particularly preferably 30 to 160 parts by weight.
- the wet blanket of the present invention has good storage stability even if it does not contain a stabilizer such as a chelating agent, and it is preferable not to contain a stabilizer when considering coloring properties, etc., but when not considering coloring properties etc. May contain about 0.1 to 1% by weight in terms of solid content.
- Stabilizers that can be included in the wet blanket include EDTA (ethylenediaminetetraacetic acid) ⁇ H ⁇ 3 (NH 4 ) chelating agent, EDTA ⁇ 2H ⁇ 2 (NH 4 ) chelating agent, citric acid, malic acid , Tartaric acid, salicylic acid and the like.
- the wet blanket of the present invention may not contain a viscosity modifier or an organic binder as used in plaster.
- the solvent ratio of the wet blanket is suitably 15 to 75% by weight, more suitably 15 to 70% by weight, and even more suitably 30 to 70% by weight. When the solvent ratio is in the above range, desired flexibility can be exhibited.
- a blanket serving as a base material before wetting can be produced by continuously laminating a cotton-like material in which inorganic fibers are gathered and performing needle punching.
- the width and length of the blanket can be selected as appropriate.
- the thickness is usually about 4 to 60 mm.
- the blanket preferably has a bulk density of 0.08 to 0.20 g / cm 3 , more preferably 0.10 to 0.20 g / cm 3 , and 0.10 to 0.18 g / cm 3 . Some are more preferred.
- the wet blanket can be produced by impregnating the blanket with a colloidal silica liquid and moistening.
- the impregnation of the colloidal silica liquid can be performed by spraying or dipping the colloidal silica liquid on the blanket, and after impregnation, the solvent ratio and thickness are adjusted by appropriately performing dehydration treatment or press molding. May be.
- the wet blanket is usually stored in a plastic bag or the like in order to maintain a wet state. However, when it is used immediately after production, it may be applied as it is without being stored in a plastic bag or the like.
- the constructed wet blanket is cured by drying, heating, etc.
- Wet blanket preferably has a bulk density after drying 105 ° C. 24 hours is 0.18 ⁇ 0.50g / cm 3, more preferably those which are 0.20 ⁇ 0.46g / cm 3, 0.20 More preferable is 0.43 g / cm 3 .
- the heat blanking shrinkage after drying for 24 hours at 105 ° C. of the wet blanket after one week after production and the wet blanket after one month after production is 0 to 3.5%.
- it is 0.1 to 3.5%, more preferably 0.1 to 3.0%.
- the obtained wet blanket was sealed in a polyethylene bag, stored at a temperature of 23 ° C. for 1 month and 2 months, and evaluated immediately after production, after 1 month and 2 months after production.
- the evaluation method is as follows. The results are shown in Table 1.
- the wet blanket was dried at 105 ° C. for 24 hours after being stored for a predetermined period.
- the dried blanket was exposed to air at a wind speed of 40 m / s for 1 hour from the direction perpendicular to the blanket, the case where the surface condition did not change was marked with ⁇ .
- Examples 2 to 7 (acidic cationic colloidal silica) A wet blanket was prepared in the same manner as in Example 1 except that the spray amount (impregnation amount) of the acidic cationic colloidal silica was changed from 50 parts by weight to 80 to 180 parts by weight in terms of solid content. evaluated. The results are shown in Table 1.
- Example 8 (acidic cationic colloidal silica)
- the biosoluble inorganic fiber b (SiO 2 content is 76 wt%, CaO content is 4 wt%, MgO content is 18 wt%
- a wet blanket was prepared and evaluated in the same manner as in Example 3 except that a blanket consisting of 2% by weight of Al 2 O 3 was used. The results are shown in Table 1.
- Example 1 Comparative Example 1 In Example 1, blankets that were not impregnated with acidic cationic colloidal silica were evaluated. The results are shown in Table 1. The bending strength of the blanket could not be measured.
- Example 8 Comparative Example 2 In Example 8, blankets that were not impregnated with acidic cationic colloidal silica were evaluated. The results are shown in Table 1. The bending strength of the blanket could not be measured.
- Example 9 (alkaline anionic colloidal silica)
- 50 parts by weight of acidic cationic colloidal silica was mixed with ST-30 (Nissan Chemical Industry Co., Ltd., solid content 30% by weight, average particle size 20 nm, pH 10.0, alkaline anionic colloidal silica, Solvent: Water)
- ST-30 Nasan Chemical Industry Co., Ltd., solid content 30% by weight, average particle size 20 nm, pH 10.0, alkaline anionic colloidal silica, Solvent: Water
- a wet blanket was prepared and evaluated in the same manner as in Example 1 except that the amount was changed to 10 to 170 parts by weight. The results are shown in Table 2.
- Example 16 (alkaline anionic colloidal silica)
- a wet blanket was produced and evaluated in the same manner as in Example 12 except that a blanket composed of the biosoluble inorganic fiber b was used instead of the blanket composed of the biosoluble inorganic fiber a.
- the results are shown in Table 2.
- Example 17 (acidic anionic colloidal silica)
- ST-O40 manufactured by Nissan Chemical Industries, Ltd., solid content 40 wt%, average particle size of solid content 30 nm, pH 2.
- a wet blanket was prepared and evaluated in the same manner as in Example 3 except that (4, solvent: water) was used. The results are shown in Table 2.
- Example 18 (acidic anionic colloidal silica)
- a wet blanket was prepared and evaluated in the same manner as in Example 17 except that a blanket composed of the biosoluble inorganic fiber b was used instead of the blanket composed of the biosoluble inorganic fiber a.
- the results are shown in Table 2.
- the wet blanket of the example is superior in strength to the comparative example.
- acidic cationic colloidal silica was excellent in heat resistance and wrapping property for a blanket made of Mg silicate fiber and Ca silicate fiber.
- Alkaline anionic colloidal silica was excellent in heat resistance for a blanket made of Ca silicate fiber.
- the wet blanket of the present invention can be applied to a furnace or the like and cured by drying, heating, or the like to produce a refractory material such as a lining material.
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Abstract
Description
1.生体溶解性無機繊維からなるブランケットに、コロイダルシリカ液を含浸させ湿潤してなることを特徴とする湿潤ブランケット。
2.前記コロイダルシリカが、酸性カチオン性コロイダルシリカである1に記載の湿潤ブランケット。
3.前記コロイダルシリカが、酸性アニオン性コロイダルシリカである1に記載の湿潤ブランケット。
4.前記コロイダルシリカ液のpHが約2~約6である1~3のいずれかに記載の湿潤ブランケット。
5.前記コロイダルシリカが、アルカリ性アニオン性コロイダルシリカである1に記載の湿潤ブランケット。
6.前記コロイダルシリカ液のpHが約8~約11である5に記載の湿潤ブランケット。
7.前記生体溶解性無機繊維が、以下の組成である1~6のいずれかに記載の湿潤ブランケット。
SiO2とZrO2とAl2O3とTiO2との合計 約50重量%~約82重量%
アルカリ金属酸化物とアルカリ土類金属酸化物との合計 約18重量%~約50重量%
8.前記生体溶解性無機繊維が、以下の組成である1~6のいずれかに記載の湿潤ブランケット。
SiO2 約50重量%~約82重量%
CaOとMgOとの合計 約10重量%~約43重量%
9.前記生体溶解性無機繊維が、約66重量%~約82重量%のSiO2、約10重量%~約33重量%のCaO、約1重量%以下のMgOおよび約3重量%未満のAl2O3を含む1~6のいずれかに記載の湿潤ブランケット。
10.前記生体溶解性無機繊維が、約66重量%~約82重量%のSiO2、約1重量%~約9重量%のCaO、約10重量%~約30重量%のMgOおよび約3重量%未満のAl2O3を含む1~6のいずれかに記載の湿潤ブランケット。
11.固形分換算で、前記生体溶解性無機繊維100重量部に対して、前記コロイダルシリカを約10重量部~約200重量部含む1~10のいずれかに記載の湿潤ブランケット。
12.溶媒率が約15重量%~約75重量%である1~11のいずれかに記載の湿潤ブランケット。
13.
1~12のいずれかに記載の湿潤ブランケットが硬化した硬化ブランケット。
SiO2とZrO2とAl2O3とTiO2との合計 50重量%~82重量%
アルカリ金属酸化物とアルカリ土類金属酸化物との合計 18重量%~50重量%
SiO2 50~82重量%
CaOとMgOとの合計 10~43重量%
SiO2 66~82重量%
CaO 1~9重量%
MgO 10~30重量%
Al2O3 3重量%以下
他の酸化物 2重量%未満
SiO2 66~82重量%(例えば、68~80重量%、70~80重量%、71~80重量%又は71~76重量%とできる)
CaO 10~34重量%(例えば、18~32重量%、20~30重量%、20~27重量%又は21~26重量%とできる)
MgO 3重量%以下(例えば、1重量%以下とできる)
Al2O3 5重量%以下(例えば3.5重量%以下、3.4重量%以下又は3重量%以下とできる。また、1重量%以上、1.1重量%以上、又は2重量%以上とできる)
他の酸化物 2重量%未満
生理食塩水溶解率は、例えば、次のようにして測定される。すなわち、先ず、無機繊維を200メッシュ以下に粉砕して調製された試料1g及び生理食塩水150mLを三角フラスコ(容積300mL)に入れ、40℃のインキュベーターに設置する。次に、三角フラスコに、毎分120回転の水平振動を50時間継続して加える。その後、ろ過により得られた濾液に含有されている各元素の濃度(mg/L)をICP発光分析装置により測定する。そして、測定された各元素の濃度と、溶解前の無機繊維における各元素の含有量(重量%)と、に基づいて、生理食塩水溶解率(%)を算出する。すなわち、例えば、測定元素が、ケイ素(Si)、マグネシウム(Mg)、カルシウム(Ca)及びアルミニウム(Al)である場合には、次の式により、生理食塩水溶解率C(%)を算出する;C(%)=[ろ液量(L)×(a1+a2+a3+a4)×100]/[溶解前の無機繊維の重量(mg)×(b1+b2+b3+b4)/100]。この式において、a1、a2、a3及びa4は、それぞれ測定されたケイ素、マグネシウム、カルシウム及びアルミニウムの濃度(mg/L)であり、b1、b2、b3及びb4は、それぞれ溶解前の無機繊維におけるケイ素、マグネシウム、カルシウム及びアルミニウムの含有量(重量%)である。
なお、平均繊維径は、走査型電子顕微鏡(日本電子製JSM‐5800LV)により撮影した写真(倍率2000~5000倍)から無作為に選定した400本以上の繊維の幅を計測し、これ等の幅から算出した平均値を意味する。
アニオン性コロイダルシリカとは、表面にマイナスの電荷を有するコロイダルシリカを意味する。
酸性カチオン性コロイダルシリカは、10~180重量部がより好ましく、30~150重量部がさらに好ましい。アニオン性コロイダルシリカは、10~180重量部がより好ましく、10~160重量部がさらに好ましく、30~160重量部が特に好ましい。
コロイダルシリカの含有量が多すぎるとハンドリング性に問題が生じる恐れがある。コロイダルシリカの含有量が少なすぎると含浸にムラが生じ強度が均一にならない恐れがある。
湿潤ブランケットに含み得る安定剤としては、EDTA(エチレンジアミン四酢酸)・H・3(NH4)の組成のキレート剤、EDTA・2H・2(NH4)の組成のキレート剤、クエン酸、りんご酸、酒石酸、サリチル酸等を挙げることができる。
溶媒率が上記範囲にあることにより、所望の可撓性を発揮することができる。
コロイダルシリカ液の含浸は、ブランケットに対してコロイダルシリカ液をスプレーしたり、ディッピングすることにより行うことができ、含浸後、適宜、脱水処理やプレス成形を行うことにより、溶媒率や厚みを調整してもよい。
酸性カチオン性コロイダルシリカであるST-AK(日産化学工業(株)社製、固形分20重量%、平均粒子径20nm、pH4.2、溶媒:水)を用い、生体溶解性無機繊維a(SiO2含有量が74重量%、CaO含有量が25重量%、MgO含有量が0.3重量%、Al2O3含有量が2重量%)からなるブランケット100重量部に対して、酸性カチオン性コロイダルシリカを固形分換算で50重量部含有するようにスプレーした後、吸引脱水を行い、水分率が57重量%である湿潤ブランケットを作製した。水分(溶媒)率は以下の式から求めた。
溶媒率(%)=固形分を除いたコロイダルシリカ液の重量/(ブランケット重量+コロイダルシリカ液重量)×100
製造直後の湿潤ブランケットを105℃24時間乾燥して測定した。
湿潤ブランケットを所定期間保管後に105℃24時間乾燥した。1100℃8時間加熱後の、線方向の加熱線収縮率を測定した。
湿潤ブランケットを所定期間保管後に105℃24時間乾燥した。万能試験機を用いてヘッドスピード10mm/分の速度で荷重を加えて破断荷重を測定し、以下の式によって曲げ強度を算出した。
曲げ強度(MPa)={3×破断荷重(N)×下部支点間距離(mm)}/{2×ブランケットの幅(mm)×(ブランケットの厚み(mm))2}
湿潤ブランケットを所定期間保管後に105℃24時間乾燥した。乾燥したブランケットに風速40m/sのエアをブランケットに垂直になる方向から1時間あて、表面の状態に変化がない場合を○、表面が大きく削れる、捲れる場合を×とした。
厚さ12mm、幅10cmの湿潤ブランケットを、直径120mmのSUS製の円筒に巻き付けたとき、外観目視で、湿潤ブランケットが破れる等の支障が無い場合を○、支障があった場合を×とした。
実施例1において、酸性カチオン性コロイダルシリカのスプレー量(含浸量)を固形分換算で50重量部から80~180重量部に変更した以外は、実施例1と同様にして、湿潤ブランケットを作製し評価した。結果を表1に示す。
実施例3において、生体溶解性無機繊維aからなるブランケットに代えて、生体溶解性無機繊維b(SiO2含有量が76重量%、CaO含有量が4重量%、MgO含有量が18重量%、Al2O3含有量が2重量%)からなるブランケットを用いた以外は、実施例3と同様にして、湿潤ブランケットを作製し評価した。結果を表1に示す。
実施例1において、酸性カチオン性コロイダルシリカを含浸させなかったブランケットを評価した。結果を表1に示す。ブランケットの曲げ強度は測定できなかった。
実施例8において、酸性カチオン性コロイダルシリカを含浸させなかったブランケットを評価した。結果を表1に示す。ブランケットの曲げ強度は測定できなかった。
実施例1において、酸性カチオン性コロイダルシリカ50重量部を、アルカリ性アニオン性コロイダルシリカであるST-30(日産化学工業(株)社製、固形分30重量%、平均粒子径20nm、pH10.0、溶媒:水)10~170重量部に変更した以外は、実施例1と同様にして、湿潤ブランケットを作製し評価した。結果を表2に示す。
実施例12において、生体溶解性無機繊維aからなるブランケットに代えて、生体溶解性無機繊維bからなるブランケットを用いた以外は、実施例12と同様にして、湿潤ブランケットを作製し評価した。結果を表2に示す。
実施例3において、酸性カチオン性コロイダルシリカに代えて、酸性アニオン性コロイダルシリカであるST-O40(日産化学工業(株)社製、固形分40重量%、固形分の平均粒子径30nm、pH2.4、溶媒:水)を用いた以外は、実施例3と同様にして、湿潤ブランケットを作製し評価した。結果を表2に示す。
実施例17において、生体溶解性無機繊維aからなるブランケットに代えて、生体溶解性無機繊維bからなるブランケットを用いた以外は、実施例17と同様にして、湿潤ブランケットを作製し評価した。結果を表2に示す。
上記に本発明の実施形態及び/又は実施例を幾つか詳細に説明したが、当業者は、本発明の新規な教示及び効果から実質的に離れることなく、これら例示である実施形態及び/又は実施例に多くの変更を加えることが容易である。従って、これらの多くの変更は本発明の範囲に含まれる。
この明細書に記載の文献の内容を全てここに援用する。
Claims (13)
- 生体溶解性無機繊維からなるブランケットに、コロイダルシリカ液を含浸させ湿潤してなることを特徴とする湿潤ブランケット。
- 前記コロイダルシリカが、酸性カチオン性コロイダルシリカである請求項1に記載の湿潤ブランケット。
- 前記コロイダルシリカが、酸性アニオン性コロイダルシリカである請求項1に記載の湿潤ブランケット。
- 前記コロイダルシリカ液のpHが2~6である請求項1~3のいずれかに記載の湿潤ブランケット。
- 前記コロイダルシリカが、アルカリ性アニオン性コロイダルシリカである請求項1に記載の湿潤ブランケット。
- 前記コロイダルシリカ液のpHが8~11である請求項5に記載の湿潤ブランケット。
- 前記生体溶解性無機繊維が、以下の組成である請求項1~6のいずれかに記載の湿潤ブランケット。
SiO2とZrO2とAl2O3とTiO2との合計 50重量%~82重量%
アルカリ金属酸化物とアルカリ土類金属酸化物との合計 18重量%~50重量% - 前記生体溶解性無機繊維が、以下の組成である請求項1~6のいずれかに記載の湿潤ブランケット。
SiO2 50~82重量%
CaOとMgOとの合計 10~43重量% - 前記生体溶解性無機繊維が、66~82重量%のSiO2、10~33重量%のCaO、1重量%以下のMgOおよび3重量%未満のAl2O3を含む請求項1~6のいずれかに記載の湿潤ブランケット。
- 前記生体溶解性無機繊維が、66~82重量%のSiO2、1~9重量%のCaO、10~30重量%のMgOおよび3重量%未満のAl2O3を含む請求項1~6のいずれかに記載の湿潤ブランケット。
- 固形分換算で、前記生体溶解性無機繊維100重量部に対して、前記コロイダルシリカを10~200重量部含む請求項1~10のいずれかに記載の湿潤ブランケット。
- 溶媒率が15~75重量%である請求項1~11のいずれかに記載の湿潤ブランケット。
- 請求項1~12のいずれかに記載の湿潤ブランケットが硬化した硬化ブランケット。
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JP2017040255A (ja) * | 2015-07-28 | 2017-02-23 | イソライト ゲーエムベーハー | 連続繊維成型品 |
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US10894737B2 (en) | 2016-01-15 | 2021-01-19 | Thermal Ceramics Uk Limited | Apparatus and method for forming melt-formed inorganic fibres |
DE102021211747A1 (de) | 2020-10-23 | 2022-04-28 | Thermal Ceramics Uk Limited | Wärmeisolierung |
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JP5138806B1 (ja) * | 2011-12-01 | 2013-02-06 | ニチアス株式会社 | 生体溶解性無機繊維及びその製造方法 |
JP5277337B1 (ja) | 2012-05-22 | 2013-08-28 | ニチアス株式会社 | 加熱装置 |
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JP2015151629A (ja) * | 2014-02-10 | 2015-08-24 | ニチアス株式会社 | 表面改質無機繊維及びその製造方法 |
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DE102021211746A1 (de) | 2020-10-23 | 2022-04-28 | Thermal Ceramics Uk Limited | Wärmeisolierung |
DE102021211745A1 (de) | 2020-10-23 | 2022-04-28 | Thermal Ceramics Uk Limited | Wärmeisolierung |
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US9434656B2 (en) | 2016-09-06 |
US20120252295A1 (en) | 2012-10-04 |
KR20130130842A (ko) | 2013-12-02 |
JP4902797B1 (ja) | 2012-03-21 |
EP2692914A4 (en) | 2014-12-24 |
CN103459685B (zh) | 2016-08-24 |
AU2012235504A1 (en) | 2013-06-06 |
EP2692914A1 (en) | 2014-02-05 |
AU2012235504B2 (en) | 2015-08-20 |
JP2012206919A (ja) | 2012-10-25 |
CN103459685A (zh) | 2013-12-18 |
US20140069566A1 (en) | 2014-03-13 |
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