WO2023106048A1 - ガラス繊維、ガラス繊維の製造方法及びガラス - Google Patents
ガラス繊維、ガラス繊維の製造方法及びガラス Download PDFInfo
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- WO2023106048A1 WO2023106048A1 PCT/JP2022/042388 JP2022042388W WO2023106048A1 WO 2023106048 A1 WO2023106048 A1 WO 2023106048A1 JP 2022042388 W JP2022042388 W JP 2022042388W WO 2023106048 A1 WO2023106048 A1 WO 2023106048A1
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Links
- 239000011521 glass Substances 0.000 title claims abstract description 105
- 239000003365 glass fiber Substances 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title abstract description 11
- 238000009987 spinning Methods 0.000 claims abstract description 48
- 239000000203 mixture Substances 0.000 claims abstract description 35
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 14
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 20
- 239000006060 molten glass Substances 0.000 claims description 19
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052681 coesite Inorganic materials 0.000 abstract description 5
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 5
- 239000000377 silicon dioxide Substances 0.000 abstract description 5
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 5
- 229910052682 stishovite Inorganic materials 0.000 abstract description 5
- 229910052905 tridymite Inorganic materials 0.000 abstract description 5
- 239000007791 liquid phase Substances 0.000 abstract 2
- 230000007423 decrease Effects 0.000 description 17
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 11
- 239000013078 crystal Substances 0.000 description 10
- 239000011211 glass fiber reinforced concrete Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 229910052697 platinum Inorganic materials 0.000 description 6
- 239000012779 reinforcing material Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 229910018068 Li 2 O Inorganic materials 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 4
- 229910052918 calcium silicate Inorganic materials 0.000 description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 2
- 229910052845 zircon Inorganic materials 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 2
- 229910011255 B2O3 Inorganic materials 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910000629 Rh alloy Inorganic materials 0.000 description 1
- 229910006501 ZrSiO Inorganic materials 0.000 description 1
- -1 admixture Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Inorganic materials [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C03C13/001—Alkali-resistant fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
Definitions
- the present invention relates to glass fibers with excellent corrosion resistance.
- the present invention relates to a highly productive glass fiber that is suitable as a reinforcing material for calcium silicate plates, GRC (glass fiber reinforced concrete), etc., and as a material that requires corrosion resistance, such as battery separators and asbestos substitutes, and a method for producing the same.
- SiO 2 —ZrO 2 —R 2 O (R is Li, Na, or K)-based alkali-resistant glass fiber containing ZrO 2 has been used as a reinforcing material for GRC, and this glass fiber is a calcium silicate plate. It is also used as a corrosion-resistant material such as a reinforcing material for batteries and battery separators.
- GRC is molded into a plate by spraying a mixture of glass fiber cut into a predetermined length, cement, aggregate, admixture, water, etc., into a mold using a spray gun or the like.
- Glass fibers used in GRC are required to retain strength sufficient for reliability even after a long period of time in concrete.
- the glass fibers described above are obtained by continuously forming and spinning molten glass using, for example, a bushing device made of noble metal, to form fibers.
- the structure of the bushing has the shape of a container for retaining the molten glass, and a large number of nozzles are arranged in the vertical direction at the bottom of the bushing. Then, the glass fibers are formed by pulling molten glass adjusted to a temperature near the spinning temperature (the temperature at which the viscosity of the glass is about 10 3 dPa s, also called the spinning temperature) through a nozzle at the bottom of the bushing. be done.
- the spinning temperature of the glass is It gets expensive.
- the bushing device made of precious metal is severely damaged, and the frequency of replacement is increased, resulting in high production cost.
- the liquidus temperature rises, and the difference between the spinning temperature and the liquidus temperature becomes smaller. If the difference between the spinning temperature and the liquidus temperature becomes small, the glass tends to devitrify at the nozzle at the bottom of the bushing, making continuous production difficult.
- Patent Document 2 discloses a glass fiber in which the spinning temperature is lowered while maintaining the difference between the liquidus temperature and the spinning temperature by reducing ZrO 2 and containing a certain amount of TiO 2 and K 2 O. It is however, there is a problem that the alkali resistance of this glass fiber is not sufficient.
- An object of the present invention is to provide a glass fiber having a low spinning temperature and a low liquidus temperature, a large difference between the liquidus temperature and the spinning temperature, and excellent alkali resistance, and a method for producing the glass fiber.
- the glass fiber of the present invention contains 50 to 70% SiO 2 , 10 to 20% Na 2 O, 0 to 5.5% TiO 2 , and 10 to 30% ZrO 2 as a glass composition in terms of oxide mass%. characterized by containing By doing so, a glass fiber having high alkali resistance and good productivity can be obtained.
- the glass fiber of the present invention preferably contains 0.001 to 0.1% Y 2 O 3 as the glass composition in terms of oxide.
- the glass fiber of the present invention preferably contains 0.001 to 1% HfO 2 in terms of mass % in terms of oxide as the glass composition.
- the glass fiber of the present invention has, as a glass composition, SiO 2 57.1 to 64.8%, Al 2 O 3 0 to 0.3%, CaO 1.71 to 10%, Na 2 O 12-20%, K 2 O 0-6%, TiO 2 0-5%, ZrO 2 15.1-18.5%.
- the glass composition preferably has a Y 2 O 3 /ZrO 2 mass ratio of 0.0005 or more in terms of oxide.
- Y 2 O 3 /ZrO is a value obtained by dividing the content of Y 2 O 3 by the content of ZrO.
- the glass fiber of the present invention preferably has a glass composition in which Na 2 O/ZrO 2 is 0.4 to 1.3 in terms of oxide mass ratio.
- Na 2 O/ZrO 2 is a value obtained by dividing the content of Na 2 O by the content of ZrO 2 .
- the glass fiber of the present invention preferably has a glass composition in which K 2 O/CaO is 15 or less in terms of oxide mass ratio.
- K 2 O/CaO is a value obtained by dividing the content of K 2 O by the content of CaO.
- the glass fiber of the present invention preferably has a glass composition in which K 2 O/ZrO 2 is 0.5 or less in terms of oxide mass ratio.
- K 2 O/ZrO 2 is a value obtained by dividing the content of K 2 O by the content of ZrO 2 .
- the glass fiber of the present invention preferably has a glass composition in which (Na 2 O+K 2 O)/(CaO+MgO) is 1.5 or more in terms of oxide mass ratio.
- ( Na2O + K2O )/(CaO+MgO) is a value obtained by dividing the total content of Na2O and K2O by the total content of CaO and MgO.
- the glass composition preferably has a mass ratio of (Na 2 O+K 2 O+CaO)/Al 2 O 3 of 80 or more in terms of oxide.
- “( Na2O + K2O +CaO)/ Al2O3” is a value obtained by dividing the total content of Na2O , K2O and CaO by the content of Al2O3 .
- the glass fiber of the present invention preferably has a spinning temperature Tx of 1350° C. or lower. By doing so, fiberization can be performed at a low temperature, so that the service life of fiberization equipment such as bushings can be extended, and the production cost can be reduced.
- the spinning temperature Tx is the temperature at which the high-temperature viscosity of the molten glass corresponds to 10 3 dPa ⁇ s.
- the glass fiber of the present invention preferably has a temperature difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty of 15°C or more.
- the liquidus temperature Ty is measured by placing the glass powder that passes through a 30-mesh standard sieve (500 ⁇ m sieve opening) and remains on a 50-mesh sieve (300 ⁇ m sieve opening) in a platinum boat and held in a temperature gradient furnace for 16 hours. It is a value obtained by measuring the temperature at which crystals (primary phase) precipitate.
- the glass fiber of the present invention preferably has a liquidus temperature Ty of 1250°C or less. By doing so, precipitation of crystals (primary phase) can be suppressed during glass fiber molding.
- the glass fiber of the present invention has a mass reduction rate of 4 when the specific gravity glass pulverized and classified to a particle size of 300 to 500 ⁇ m is immersed in 100 ml of a 10% by mass NaOH aqueous solution at 80 ° C. for 168 hours. It is preferably less than 0.5%. By doing so, a glass fiber having high alkali resistance can be obtained.
- the method for producing the glass fiber of the present invention comprises melting a prepared raw material batch in a glass melting furnace, continuously pulling out the obtained molten glass from a bushing, and forming it into fibers to obtain the above glass fiber. characterized by
- the glass of the present invention contains 50 to 70% SiO 2 , 10 to 20% Na 2 O, 0 to 5.5% TiO 2 , and 10 to 30% ZrO 2 as the glass composition in terms of oxides. characterized by
- the present invention it is possible to provide a glass fiber having a low spinning temperature and a low liquidus temperature, a large difference between the liquidus temperature and the spinning temperature, and excellent alkali resistance, and a method for producing the glass fiber.
- the glass fiber of the present invention contains 50 to 70% SiO 2 , 10 to 20% Na 2 O, 0 to 5.5% TiO 2 , and 10 to 30% ZrO 2 as a glass composition in terms of oxide mass%. contains.
- the reasons for limiting the glass composition as described above are as follows.
- “%” means “% by mass” unless otherwise specified.
- SiO2 is the main component that forms the glass framework structure. It is also a component that improves the mechanical strength of glass and the acid resistance of glass. If the SiO2 content is too low, the mechanical strength and elastic modulus will decrease, making it difficult to obtain sufficient strength. Also, the acid resistance of the glass is lowered.
- the lower limit of the content of SiO2 is 50% or more, 51% or more, 52% or more, 53% or more, 54% or more, 55% or more, 56% or more, 57% or more, more than 57%, 57.1 % or more, 57.5% or more, 57.8% or more, 58% or more, 58.5% or more, 58.6% or more, 58.7% or more, 58.8% or more, 58.9% or more, 59 % or more, 59.1% or more, 59.2% or more, 59.3% or more, 59.4% or more, particularly 59.5% or more.
- the SiO 2 content is too high, the viscosity of the molten glass becomes too high, making it difficult to achieve a homogeneous molten state, and as a result, it may be difficult to adjust the glass fiber diameter. Further, if the viscosity is high, the energy required for melting the glass increases, the spinning temperature Tx increases, and the precious metal bushings are severely damaged, resulting in increased replacement frequency and increased production costs.
- the upper limit of the content of SiO2 is 70% or less, 69% or less, 68% or less, 67% or less, 66% or less, 65.5% or less, 65.3% or less, 65% or less, 64.9 % or less, 64.8% or less, 64.7% or less, 64.6% or less, 64.5% or less, 64% or less, 63.5% or less, 63.4% or less, 63.3% or less, 63 .2% or less, 63.1% or less, 63% or less, less than 63%, 62.9% or less, 62.8% or less, and particularly preferably 62.7% or less.
- Na 2 O is a component that increases the meltability and formability of the glass by lowering the viscosity of the glass. If the content of Na 2 O is too low, the viscosity of the glass increases and the energy required for melting the glass increases. In addition, the noble metal bushing is severely damaged, requiring frequent replacement, resulting in high production costs.
- the lower limit of the content of Na 2 O is 10% or more, 11% or more, 12% or more, 12.1% or more, 12.2% or more, 12.3% or more, 12.4% or more, 12.5% % or more, 12.6% or more, 12.7% or more, 12.8% or more, 12.9% or more, 13% or more, more than 13%, 13.1% or more, 13.2% or more, 13.3 % or more, 13.4% or more, 13.5% or more, particularly 13.6% or more.
- the content of Na 2 O is too high, the primary phase in which CaO, Na 2 O, K 2 O, etc. are solid-dissolved in zircon (ZrSiO 4 ) tends to precipitate, and the liquidus temperature of the glass increases, resulting in spinning.
- the upper limit of the content of Na 2 O is 20% or less, 19% or less, 18.5% or less, 18% or less, 17.5% or less, 17% or less, 16.9% or less, 16.8% or less , 16.7% or less, 16.5% or less, 16.4% or less, 16.3% or less, 16.2% or less, 16.1% or less, 16% or less, 15.9% or less, 15.8 % or less, 15.7% or less, 15.6% or less, 15.5% or less, 15.4% or less, 15.3% or less, 15.2% or less, 15.1% or less, 15% or less, 14 .9% or less, 14.8% or less, 14.7% or less, 14.6% or less, 14.5% or less, 14.4% or less, 14.3% or less, especially 14.2% or less is preferred.
- TiO 2 improves the water resistance of the glass and lowers the melting temperature of the glass, the viscosity of the glass, and the spinning temperature Tx, so that good productivity can be maintained.
- the content of TiO2 is 0-5.5%, 0-5.4%, 0-5.3%, 0-5.2%, 0-5.1%, 0-5%, 0 It is preferably less than ⁇ 5%, 0-4%, 0-3%, 0-2%, 0-1%, especially 0.01-1%.
- ZrO2 is a component that improves the alkali resistance, acid resistance and water resistance of glass. If the content of ZrO 2 is too low, the alkali resistance is lowered and the durability required for GRC cannot be achieved. Therefore, the lower limit of the content of ZrO2 is 10% or more, 11% or more, 12% or more, 13% or more, 14% or more, 14.5% or more, 14.8% or more, 15% or more, 15.1% 15.2% or more, 15.3% or more, 15.4% or more, 15.5% or more, 15.6% or more, 15.7% or more, 15.8% or more, 15.9% or more, It is preferably 16% or more, 16.1% or more, 16.2% or more, 16.3% or more, 16.4% or more, particularly 16.5% or more.
- the upper limit of the content of ZrO2 is 30% or less, 29% or less, 28% or less, 27% or less, 26% or less, 25% or less, 24% or less, 23% or less, 22% or less, 21% or less, 20% or less, 19% or less, 18.9% or less, 18.8% or less, 18.7% or less, 18.6% or less, 18.5% or less, 18.4% or less, 18.3% or less, It is preferably 18.2% or less, 18.1% or less, 18% or less, less than 18%, particularly 17.9% or less.
- the glass fiber of the present invention may contain components other than the above components (SiO 2 , Na 2 O, TiO 2 and ZrO 2 ).
- Y 2 O 3 is a component that enhances the alkali resistance, acid resistance, water resistance and mechanical strength of glass. If the content of Y 2 O 3 is too small, the alkali resistance is lowered, making it difficult to obtain sufficient alkali resistance. Therefore, the lower limit of the content of Y 2 O 3 is 0.001% or more, 0.002% or more, 0.003% or more, 0.004% or more, 0.005% or more, 0.006% or more, and 0.006% or more.
- the upper limit of the content of Y 2 O 3 is 0.1% or less, less than 0.1%, 0.09% or less, 0.08% or less, 0.07% or less, 0.06% or less, 0.09% or less. 05% or less, particularly preferably less than 0.05%.
- HfO 2 is a component that enhances the alkali resistance, acid resistance, water resistance and mechanical strength of glass. If the content of HfO 2 is too low, the alkali resistance is lowered, making it difficult to obtain sufficient alkali resistance. Therefore, the lower limit of the content of HfO2 is 0.001% or more, 0.002% or more, 0.003% or more, 0.004% or more, 0.005% or more, 0.006% or more, 0.007% 0.008% or more, 0.009% or more, 0.01% or more, 0.015% or more, 0.02% or more, 0.025% or more, 0.026% or more, 0.027% or more, It is preferably 0.028% or more, 0.029% or more, particularly 0.03% or more.
- the upper limit of the content of HfO 2 is 1% or less, less than 1%, 0.9% or less, 0.8% or less, 0.7% or less, 0.6% or less, 0.5% or less, especially 0 It is preferably less than 0.5%.
- Al 2 O 3 is a component that enhances the chemical durability and mechanical strength of glass.
- Al 2 O 3 is also a component that increases the viscosity of glass. If the content of Al 2 O 3 is too high, devitrified crystals of mullite (3Al 2 O 3 .2SiO 2 ) containing Al 2 O 3 as a main component are likely to occur in the molten glass, and the viscosity of the molten glass increases. This makes it difficult to obtain a homogeneous molten state, and as a result, the dimensional accuracy of the glass fiber diameter tends to decrease.
- the content of Al 2 O 3 is 0-3%, 0-2%, 0-1.5%, 0-1%, 0-0.8%, 0-0.7%, 0-0. 6%, 0-0.5%, 0-0.4%, 0-0.3%, 0-0.2%, particularly preferably 0.01-0.2%.
- CaO is a component that lowers the spinning temperature Tx during glass fiber molding and improves alkali resistance. If the content of CaO is too low, it will be difficult to obtain the above effects. Therefore, the lower limit of the CaO content is 0% or more, 0.1% or more, 0.2% or more, 0.3% or more, 0.4% or more, 0.5% or more, 0.6% or more, 0 .7% or more, 0.8% or more, 0.9% or more, 1% or more, 1.1% or more, 1.2% or more, 1.3% or more, 1.4% or more, 1.5% or more , 1.6% or more, 1.7% or more, over 1.7%, 1.71% or more, 1.75% or more, 1.8% or more, 1.9% or more, 2% or more, 2.1 % or more, 2.2% or more, 2.3% or more, 2.4% or more, 2.5% or more, 2.6% or more, 2.7% or more, 2.8% or more, 2.9% or more , 3% or more, 3.2% or more, 3.4% or more, 3.5% or more, 3.6% or more
- the upper limit of the CaO content is 10% or less, 9% or less, 8% or less, 7.5% or less, 7.4% or less, 7.3% or less, 7.2% or less, 7.1% or less , 7% or less, 6.9% or less, 6.8% or less, 6.7% or less, 6.6% or less, 6.5% or less, and particularly preferably less than 6.5%.
- K 2 O is a component that enhances the meltability and formability of the glass by lowering the viscosity of the glass.
- the K 2 O content is too high, the water resistance of the glass will be lowered.
- the raw material batch tends to absorb moisture, and aggregates of the raw material powder are likely to be formed. When aggregates of raw material powder are formed, the solubility of the raw material batch deteriorates, and undissolved zirconia tends to remain in the product glass.
- the content of K 2 O is 0-10%, 0-9%, 0-8%, 0-7%, 0-6%, 0-5%, 0-4.5%, 0-4% , 0-3.5%, 0-3%, 0-2.5%, 0-2%, 0-1.5%, 0-1.4%, 0-1.3%, 0-1. 2%, 0-1.1%, 0-1%, 0-0.9%, 0-0.8%, 0-0.7%, 0-0.6%, 0-0.5%, 0-0.4%, 0-0.3%, 0-0.3%, 0.001-0.3%, 0.001-0.25%, especially 0.001-0.2% is preferably
- MgO is a component that reduces the viscosity of glass and improves the elastic modulus of glass.
- the content of MgO should be 0 to 1.5%, 0 to 1.4%, 0 to 1.3%, 0 to 1.2%, 0 to 1.1%, especially 0 to 1%. is preferred.
- P 2 O 5 is a component that lowers the liquidus temperature Ty. If the content of P 2 O 5 is too small, it will be difficult to obtain the above effects. Therefore, the lower limit of the content of P 2 O 5 is preferably 0.01% or more, 0.015% or more, particularly 0.02% or more. On the other hand, when the content of P 2 O 5 is too high, the alkali resistance tends to decrease. Therefore, the upper limit of the content of P 2 O 5 is preferably 0.2% or less, 0.1% or less, 0.07% or less, particularly 0.05% or less.
- Li 2 O is a component that lowers the viscosity of the glass and enhances the meltability and moldability. However, since Li 2 O has a high raw material cost, the production cost is high. Therefore, the content of Li 2 O is 0-1%, 0-0.9%, 0-0.8%, 0-0.7%, 0-0.6%, 0-0.5%, 0 ⁇ 0.4%, 0-0.3%, 0-0.2%, 0-0.15%, particularly preferably 0-0.15%.
- Fe 2 O 3 is a component that lowers the liquidus temperature Ty. If the content of Fe 2 O 3 is too small, it will be difficult to obtain the above effects. Therefore, the lower limit of the content of Fe 2 O 3 is 0.0001% or more, 0.0002% or more, 0.0003% or more, 0.0004% or more, 0.0005% or more, 0.0006% or more, especially 0 It is preferably at least 0.001%. On the other hand, if the content of Fe 2 O 3 is too high, undissolved Fe 2 O 3 tends to remain in the product glass, and unfavorable crystals are likely to occur, which may cause clogging of bushing nozzles during glass fiber molding. may become.
- the upper limit of the content of Fe 2 O 3 is 5% or less, 4% or less, 3% or less, 2% or less, 1% or less, 0.9% or less, 0.8% or less, 0.7% or less , 0.6% or less, 0.5% or less, 0.4% or less, 0.3% or less, 0.2% or less, and particularly 0.1% or less.
- SO3 is a component that improves clarity during glass melting. If the content of SO 3 is too small, it will be difficult to obtain the above effects. Therefore, the lower limit of the content of SO3 is 0.0001% or more, 0.0002% or more, 0.0003% or more, 0.0004% or more, 0.0005% or more, 0.0006% or more, especially 0.001% % or more. On the other hand, if the content of SO 3 is too high, a large amount of bubbles are generated in the glass melt, and bubbles are generated during molding of the glass fiber, leading to cutting of the glass fiber, thus reducing productivity.
- the upper limit of the content of SO3 is 1% or less, 0.9% or less, 0.8% or less, 0.7% or less, 0.6% or less, 0.5% or less, 0.4% or less, It is preferably 0.3% or less, 0.2% or less, particularly 0.1% or less.
- the glass fiber of the present invention can maintain high alkali resistance and productivity in a more preferable manner. If the Y 2 O 3 /ZrO 2 ratio is too small, the alkali resistance is lowered, the liquidus temperature Ty of the glass is raised, the temperature difference ⁇ Txy between the spinning temperature and the liquidus temperature is reduced, and the productivity is lowered. Therefore, the lower limit of Y 2 O 3 /ZrO 2 is 0.0005 or more, 0.001 or more, 0.0011 or more, 0.0012 or more, 0.0013 or more, 0.0014 or more, 0.0015 or more, 0.0015 or more.
- the upper limit of Y 2 O 3 /ZrO 2 is preferably 1 or less, 0.5 or less, 0.4 or less, 0.3 or less, 0.2 or less, 0.1 or less, and particularly preferably less than 0.1. .
- the glass fiber of the present invention can maintain high alkali resistance and productivity in a more preferable manner. If the ratio of Na 2 O/ZrO 2 is too large or too small, the alkali resistance of the glass is lowered, the liquidus temperature Ty is increased, and the temperature difference ⁇ Txy between the spinning temperature and the liquidus temperature is decreased, resulting in decreased productivity. descend. Therefore, the lower limit of Na 2 O/ZrO 2 is preferably 0.4 or more, 0.5 or more, 0.6 or more, 0.7 or more, particularly 0.8 or more.
- the upper limit of Na 2 O/ZrO 2 is 1.3 or less, 1.25 or less, 1.2 or less, 1.15 or less, 1.14 or less, 1.13 or less, 1.12 or less, 1.11 or less, especially It is preferably 1.1 or less.
- the glass fiber of the present invention can maintain high alkali resistance and productivity in a more preferable form by controlling K 2 O/CaO. If the ratio of K 2 O/CaO is too large, the liquidus temperature Ty increases, the temperature difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty decreases, and productivity decreases. Therefore, K 2 O/CaO is preferably 15 or less, 14 or less, 13.6 or less, particularly 13.5 or less. Although the lower limit of K 2 O/CaO is not particularly limited, it is practically 0.0001 or more.
- the glass fiber of the present invention can maintain high alkali resistance and productivity in a more preferable manner. If the ratio of K 2 O/ZrO 2 is too large, the liquidus temperature Ty becomes high and the temperature difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty becomes small, resulting in a decrease in productivity.
- K 2 O/ZrO 2 is 0.5 or less, 0.4 or less, 0.35 or less, less than 0.35, 0.34 or less, 0.33 or less, 0.32 or less, 0.31 or less, 0.
- K 2 O/ZrO 2 is not particularly limited, it is practically 0.0001 or more.
- the glass fiber of the present invention can maintain high productivity while suppressing raw material costs in a more preferable manner. If (Na 2 O+K 2 O)/(CaO+MgO) is too small, the liquidus temperature Ty of the glass becomes high, the temperature difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty becomes small, and productivity decreases.
- (Na 2 O + K 2 O) / (CaO + MgO) is 1.5 or more, 1.6 or more, 1.7 or more, 1.75 or more, 1.8 or more, 1.9 or more, 2 or more, more than 2 , 2.1 or more, 2.11 or more, 2.12 or more, 2.13 or more, 2.14 or more, 2.15 or more, 2.16 or more, 2.17 or more, 2.18 or more, 2.19 or more , 2.2 or more, 2.25 or more, 2.3 or more, especially more than 2.3.
- the upper limit of (Na 2 O+K 2 O)/(CaO+MgO) is not particularly limited, it is practically 1000 or less.
- the glass fiber of the present invention can maintain alkali resistance and high productivity in a more preferable form.
- the glass spinning temperature Tx will increase and the productivity will decrease, in addition to the decrease in alkali resistance.
- (Na 2 O+K 2 O+CaO)/Al 2 O 3 is 80 or more, 90 or more, 100 or more, 105 or more, 110 or more, 120 or more, 125 or more, 126 or more, 127 or more, 128 or more, 129 or more, 130 131 or more, 132 or more, 133 or more, 134 or more, 135 or more, 136 or more, 137 or more, 138 or more, 139 or more, more than 139, particularly preferably 140 or more.
- the upper limit of (Na 2 O+K 2 O+CaO)/Al 2 O 3 is not particularly limited, it is practically 5000 or less.
- the glass fiber of the present invention contains the above components (SiO 2 , Al 2 O 3 , CaO, Na 2 O, TiO 2 , ZrO 2 , HfO 2 , Y 2 O 3 , K 2 O, MgO, P 2 O 5 , Li 2 O, Fe 2 O 3 and SO 3 ).
- the composition it is preferable to adjust the composition so that the total content of the above components is 97% or more, 98% or more, 98.5% or more, particularly 99% or more. If the total amount of these components is less than 97%, the mixture of different components may reduce the alkali resistance, acid resistance, and water resistance, resulting in deterioration of the product characteristics, or the temperature between the spinning temperature Tx and the liquidus temperature Ty. The difference ⁇ Txy becomes small, which tends to cause problems such as a decrease in productivity.
- trace components such as H 2 , CO 2 , CO, H 2 O, He, Ne, Ar, and N 2 may be contained up to 0.1% each.
- a noble metal element such as Pt, Rh, and Au may be added to the glass up to 500 ppm.
- MoO 3 is a component that can be mixed from raw materials, melting members, and the like. If the glass contains too much MoO 3 , crystals containing Mo precipitate and the glass tends to devitrify, lowering productivity.
- the content of MoO 3 is preferably 1000 ppm or less, 900 ppm or less, 800 ppm or less, 700 ppm or less, 600 ppm or less, 500 ppm or less, 400 ppm or less, 300 ppm or less, 200 ppm or less, especially 100 ppm or less.
- the lower limit of the MoO3 content is 0.1 ppm or more, 0.5 ppm or more, 1 ppm or more, 2 ppm or more, 3 ppm or more. , 4 ppm or more, particularly preferably 5 ppm or more.
- B2O3 , SrO, BaO, ZnO, Cr2O3 , Sb2O3 , MnO, SnO2 , CeO2 , Cl2 , La2O3 are added to improve alkali resistance and liquidus temperature Ty .
- WO 3 , Nb 2 O 5 and the like may be contained in a total amount of 2% or less, 1.5% or less, 1.2% or less, 1.1% or less, particularly preferably 1% or less. From the viewpoint of environmental load, it is preferable to not contain much Cr 2 O 3 and B 2 O 3 in terms of composition design.
- the content of Cr 2 O 3 is preferably less than 1%, less than 0.5%, less than 0.3%, especially less than 0.1%, and the content of B 2 O 3 is less than 1%, 0.3%. It is preferably less than 5%, less than 0.3%, especially less than 0.2%.
- the glass fiber of the present invention preferably has a spinning temperature Tx of 1350°C or lower, 1340°C or lower, 1330°C or lower, 1320°C or lower, 1310°C or lower, 1300°C or lower, 1290°C or lower, particularly 1280°C or lower. If the spinning temperature Tx is too high, it is necessary to perform spinning at a high temperature, which causes severe damage to the noble metal bushings, resulting in increased replacement frequency and increased production costs. Although the lower limit of the spinning temperature Tx is not particularly limited, it is practically 1100° C. or higher.
- the glass fiber of the present invention has a temperature difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty of 15° C. or higher, 20° C. or higher, 30° C. or higher, 40° C. or higher, 50° C. or higher, 60° C. or higher, 70° C. or higher. It is preferably 80° C. or higher, 90° C. or higher, 100° C. or higher, particularly 110° C. or higher. If the difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty is too small, the productivity will decrease. Although the upper limit of ⁇ Txy is not particularly limited, it is practically 250° C. or less.
- the glass fiber of the present invention has a liquidus temperature Ty of 1250° C. or less, 1240° C. or less, 1230° C. or less, 1220° C. or less, 1210° C. or less, 1200° C. or less, 1190° C. or less, 1185° C. or less, particularly 1180° C. or less. is preferred. If the liquidus temperature is too high, productivity will decrease. Although the lower limit of the liquidus temperature Ty is not particularly limited, it is practically 900° C. or higher.
- the mass reduction rate of the glass when the specific gravity glass crushed and classified to a particle size of 300 to 500 ⁇ m is immersed in 100 ml of a 10% by mass NaOH aqueous solution at 80 ° C. for 168 hours is Less than 4.5%, 4.3% or less, 4.2% or less, 4% or less, 3.9% or less, 3.8% or less, 3.7% or less, 3.6% or less, 3.5% Below, it is especially preferable that it is 3.4% or less. If the mass reduction rate of the glass in this alkali resistance test is high, the alkali resistance of the glass is lowered, and the reliability as a reinforcing material for composite materials such as calcium silicate plates and GRC is lowered.
- the method for producing the glass fiber of the present invention will be explained using the direct melt method (DM method) as an example.
- the present invention is not limited to the following methods, and employs, for example, a so-called indirect molding method (MM method: marble melt method) in which a fiber glass material molded into a marble shape is remelted with a bushing device and spun. You can also This method is suitable for small-lot, high-mix production.
- MM method marble melt method
- a glass raw material batch prepared so as to have the above composition (and characteristics) is put into a glass melting furnace, vitrified, melted, and homogenized.
- the melting temperature is preferably about 1400-1600.degree.
- the molten glass is molded into glass fibers.
- the molten glass is supplied to the bushing, and the molten glass supplied to the bushing is continuously pulled out in filament form from a number of bushing nozzles provided on the bottom surface of the bushing.
- a glass strand is obtained by applying various treatment agents to the monofilament pulled out in this way and collecting the monofilament by a predetermined number.
- the glass fibers of the present invention include not only the glass strands described above, but also short fibers such as glass wool formed by a centrifugal method or the like, and monofilaments before the glass strands are bundled.
- the glass fibers of the present invention molded in this way are processed into chopped strands, yarns, rovings, etc., and used for various purposes.
- the chopped strand is obtained by cutting a glass fiber (strand) obtained by bundling glass monofilaments into a predetermined length.
- a yarn is a twisted strand.
- a roving is a product in which a plurality of strands are combined and wound into a cylindrical shape.
- Tables 1 to 7 show Examples (Sample Nos. 1 to 38, Nos. 40 to 68) and Comparative Example (Sample No. 39) of the glass constituting the glass fiber of the present invention, respectively.
- the spinning temperature Tx at which the viscosity of the molten glass corresponds to 10 3 dPa ⁇ s is measured based on the platinum ball pull-up method after the molded glass is put into an alumina crucible, heated again, and heated to a molten state. It was calculated by interpolation of viscosity curves obtained from multiple measurements of each viscosity measured.
- the liquidus temperature Ty passes through a standard sieve of 30 meshes (300 ⁇ m), and the glass powder remaining on the 50 meshes (300 ⁇ m) is filled in a platinum container so as to have an appropriate bulk density, and the maximum temperature is set to 1320 ° C. It was placed in an indirect heating type temperature gradient furnace and allowed to stand still, and heat treatment was performed in an air atmosphere for 16 hours. After that, the platinum container containing the glass sample was taken out, and the glass sample was removed from the platinum container. After allowing the glass sample to cool to room temperature, the location where crystals started to precipitate was confirmed with a polarizing microscope, and the crystal precipitation temperature was calculated from the temperature gradient in the indirect heating furnace.
- the temperature difference ⁇ Txy between the spinning temperature Tx and the liquidus temperature Ty was calculated by (spinning temperature Tx) - (liquidus temperature Ty).
- the alkali resistance was measured as follows. First, the above plate glass sample was pulverized, and the glass having a particle size of 300 to 500 ⁇ m in diameter was precisely weighed by the specific gravity, and then immersed in 100 ml of a 10% by mass NaOH solution at 80° C. for 168 hours. shaken. After that, the mass reduction rate of the glass sample was measured. The smaller this value, the better the alkali resistance.
- sample No. 1 which is an example, 1-38
- No. 40 to 68 have a glass spinning temperature Tx of 1350° C. or less, a liquidus temperature Ty of 1235° C. or less, and a temperature difference ⁇ Txy between the glass spinning temperature Tx and the liquidus temperature Ty of 18° C. or more, and are excellent in productivity.
- the mass reduction rate which is an index of alkali resistance, was less than 4.5%.
- Sample No. which is a comparative example, No. 39 had a mass reduction rate of 4.5%, which is an index of alkali resistance, and had low alkali resistance.
- the glass fiber of the present invention is suitable not only as a reinforcing material for GRC, but also as a reinforcing material for calcium silicate plates and as a corrosion-resistant material for battery separators and the like.
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Abstract
Description
Claims (16)
- ガラス組成として、酸化物換算の質量%で、SiO2 50~70%、Na2O 10~20%、TiO2 0~5.5%、ZrO2 10~30%を含有することを特徴とするガラス繊維。
- ガラス組成として、酸化物換算の質量%で、Y2O3 0.001~0.1%を含有することを特徴とする請求項1に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量%で、HfO2 0.001~1%を含有することを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量%で、SiO2 57.1~64.8%、Al2O3 0~0.3%、CaO 1.71~10%、Na2O 12~20%、K2O 0~6%、TiO2 0~5%、ZrO2 15.1~18.5%を含有することを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量比で、Y2O3/ZrO2が0.0005以上であることを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量比で、Na2O/ZrO2が0.4~1.3であることを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量比で、K2O/CaOが15以下であることを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量比で、K2O/ZrO2が0.5以下であることを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量比で、(Na2O+K2O)/(CaO+MgO)が1.5以上であることを特徴とする請求項1又は2に記載のガラス繊維。
- ガラス組成として、酸化物換算の質量比で、(Na2O+K2O+CaO)/Al2O3が80以上であることを特徴とする請求項1又は2に記載のガラス繊維。
- 紡糸温度Txが1350℃以下であることを特徴とする請求項1又は2に記載のガラス繊維。
- 紡糸温度Txと液相温度Tyとの温度差ΔTxyが15℃以上であることを特徴とする請求項1又は2に記載のガラス繊維。
- 液相温度Tyが1250℃以下であることを特徴とする請求項1又は2に記載のガラス繊維。
- 300~500μmの粒度に粉砕分級された比重分のガラスを10質量%のNaOH水溶液100ml中に80℃、168時間の条件で浸漬した時のガラスの質量減少率が4.5%未満であることを特徴とする請求項1又は2に記載のガラス繊維。
- 調合した原料バッチをガラス溶融炉で溶融し、得られた溶融ガラスをブッシングから連続的に引き出して繊維状に成形することにより、請求項1又は2に記載のガラス繊維を得ることを特徴とするガラス繊維の製造方法。
- ガラス組成として、酸化物換算の質量%で、SiO2 50~70%、Na2O 10~20%、TiO2 0~5.5%、ZrO2 10~30%を含有することを特徴とするガラス。
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- 2022-11-15 WO PCT/JP2022/042388 patent/WO2023106048A1/ja active Application Filing
- 2022-11-15 CN CN202280081262.8A patent/CN118369298A/zh active Pending
- 2022-11-15 JP JP2023566191A patent/JPWO2023106048A1/ja active Pending
- 2022-11-15 EP EP22903979.7A patent/EP4446291A1/en active Pending
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JPS56134534A (en) * | 1980-02-27 | 1981-10-21 | Pilkington Brothers Ltd | Alkali-resistant glass fiber and cement product reinforced with said glass fiber |
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WO2014065321A1 (ja) | 2012-10-25 | 2014-05-01 | 日本電気硝子株式会社 | ガラス繊維用ガラス組成物、ガラス繊維及びガラス繊維の製造方法 |
CN104261686A (zh) * | 2014-09-05 | 2015-01-07 | 巨石集团有限公司 | 一种耐碱玻璃纤维组合物 |
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