CN112047745A - Composite refractory fiber and preparation method thereof - Google Patents

Composite refractory fiber and preparation method thereof Download PDF

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Publication number
CN112047745A
CN112047745A CN202010772190.4A CN202010772190A CN112047745A CN 112047745 A CN112047745 A CN 112047745A CN 202010772190 A CN202010772190 A CN 202010772190A CN 112047745 A CN112047745 A CN 112047745A
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parts
additive
refractory
refractory fiber
composite refractory
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李金仁
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Shandong Jinshanhe New Material Technology Co ltd
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Shandong Jinshanhe New Material Technology Co ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • 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
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  • Artificial Filaments (AREA)
  • Inorganic Fibers (AREA)
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Abstract

The invention belongs to the technical field of preparation of refractory fibers, and particularly relates to a composite refractory fiber and a preparation method thereof. The composite refractory fiber is composed of the following raw materials: 60-65 parts of zirconium oxide, 15-20 parts of corundum powder, 10-15 parts of wollastonite, 5-8 parts of titanium dioxide, 20-30 parts of basalt, 3-5 parts of refractory additive and 8.5-12.5 parts of anticorrosive additive. The composite refractory fiber is prepared by taking zirconium oxide, corundum powder, wollastonite, titanium dioxide and basalt as main materials and adding a refractory additive and an anticorrosive additive, is high-temperature resistant, chemical corrosion resistant, high in strength and good in wear resistance, and prolongs the service life of the refractory fiber.

Description

Composite refractory fiber and preparation method thereof
Technical Field
The invention belongs to the technical field of preparation of refractory fibers, and particularly relates to a composite refractory fiber and a preparation method thereof.
Background
The refractory fiber is a fibrous light refractory material integrating the excellent performances of traditional heat insulating materials and refractory materials, the product relates to various fields, is widely applied to various industrial departments, and is a basic material for improving the thermal performance of thermal equipment such as industrial kilns, heating devices and the like and realizing light structure and energy conservation.
The refractory fiber is also called ceramic fiber, belongs to fibrous heat-insulating refractory materials, has the characteristics of common fiber, has high temperature resistance and corrosion resistance which are not possessed by common fiber, and is widely applied to the industrial departments of metallurgy, chemical industry, machinery, building materials, shipbuilding, aviation, aerospace and the like as a refractory and heat-insulating material.
The refractory fibers are classified into amorphous and polycrystalline types. Amorphous refractory fibers include aluminum silicate, high purity aluminum silicate, chromium-containing aluminum silicate and high alumina refractory fibers. Polycrystalline refractory fibers including mullite fibers, alumina fibers, and zirconia fibers.
The research on the fire-resistant fiber mainly focuses on the research on the fields of antibiosis and heat resistance, but the service life of the fire-resistant fiber is short due to the fact that the fire-resistant fiber is easy to wear and tear, easy to break, low in strength, insufficient in corrosion resistance and the like based on the characteristics of the fire-resistant fiber, and the cost of an enterprise is increased invisibly.
Disclosure of Invention
The purpose of the invention is: the composite refractory fiber is provided, and has the advantages of high temperature resistance, chemical corrosion resistance, high strength and good wear resistance; the invention also provides a preparation method thereof.
The composite refractory fiber disclosed by the invention comprises the following raw materials in parts by weight:
60-65 parts of zirconium oxide, 15-20 parts of corundum powder, 10-15 parts of wollastonite, 5-8 parts of titanium dioxide, 20-30 parts of basalt, 3-5 parts of refractory additive and 8.5-12.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 47.50-52.80％、CaO 44.50-47.00％、Al2O3 0-1.95％、Fe2O3 0.30-1.50％、MgO 0.20-1.95％、TiO2 0-0.80％、K2O 0-0.85％、Na20 to 0.50 percent of O and 1.0 to 2.5 percent of loss on ignition.
The chemical composition of the basalt is as follows: SiO 22 51.00-56.50％、Al2O3 15.00-18.50％、Fe2O3 3.00-5.50％、CaO 8.50-10.35％、MgO 5.50-7.50％、NaO 3.00-5.50％、K2O 1.20-1.60％、TiO21.00-1.20% and 0.50-1.00% of loss on ignition.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 8-13 parts of antimony trioxide, 12-18 parts of zinc oxide, 25-30 parts of silicon carbide and 39-45 parts of aluminum trifluoride.
The anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 10-15 parts of polyacrylonitrile, 15-20 parts of molybdenum phenolic resin, 20-25 parts of triphenylaminosilane, 15-20 parts of polyethylene oxide, 15-20 parts of chlorinated rubber and 20-25 parts of sodium oleate.
The preparation method of the composite refractory fiber comprises the following steps:
(1) blending zirconia, corundum powder, wollastonite, titanium dioxide and basalt and crushing the mixture into 350 meshes of 300 meshes to obtain a main material, crushing the refractory additive into 400 meshes of 350 meshes, mixing the refractory additive powder with the main material powder, and keeping the temperature at 850 ℃ of 750 meshes for 2-3 hours to obtain a premix;
(2) adding the anti-corrosion additive into the premix, uniformly mixing, heating the uniformly mixed mixture to 1900-1950 ℃ for melting to obtain molten liquid, and filtering the molten liquid to remove impurities;
(3) and enabling the filtrate to flow into a stirring kettle with the temperature of 2150-2250 ℃ for continuous stirring to obtain a spinning solution, enabling the spinning solution to flow out from a discharge port and enter a centrifugal head, enabling the spinning solution to be centrifugally thrown out through a small hole of the centrifugal head, and cooling and collecting to obtain the composite refractory fiber.
Wherein:
the centrifugal speed of the centrifugal head is 2-3 ten thousand rpm, and the aperture of the small hole is 0.4-0.5 mm.
Compared with the prior art, the invention has the following beneficial effects:
(1) the composite refractory fiber is prepared by taking zirconium oxide, corundum powder, wollastonite, titanium dioxide and basalt as main materials and adding a refractory additive and an anticorrosive additive, and has the advantages of high temperature resistance, chemical corrosion resistance, high strength, good wear resistance and prolonged service life.
(2) The preparation method of the composite refractory fiber has the advantages of simple preparation process, environmental protection, high efficiency, reasonable process parameter design, high finished product rate of the prepared refractory fiber and good performance.
Detailed Description
The present invention is further described below with reference to examples.
Example 1
The composite refractory fiber described in this example 1 is composed of the following raw materials in parts by mass:
60 parts of zirconium oxide, 17 parts of corundum powder, 10 parts of wollastonite, 5 parts of titanium dioxide, 25 parts of basalt, 3 parts of refractory additive and 8.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 50.50％、CaO 46.20％、Al2O3 0.80％、Fe2O3 0.56％、MgO 0.86％、TiO2 0.65％、K2O 0.85％、Na20.32 percent of O and 1.0 percent of loss on ignition.
The chemical composition of the basalt is as follows: SiO 22 55.50％、Al2O3 16.20％、Fe2O3 4.50％、CaO 9.35％、MgO 6.50％、NaO 4.50％、K2O 1.40％、TiO21.20 percent and loss on ignition of 1.0 percent.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 13 parts of antimony trioxide, 18 parts of zinc oxide, 26 parts of silicon carbide and 43 parts of aluminum trifluoride.
The anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 10 parts of polyacrylonitrile, 15 parts of molybdenum phenolic resin, 25 parts of triphenylaminosilane, 15 parts of polyethylene oxide, 15 parts of chlorinated rubber and 20 parts of sodium oleate.
The preparation method of the composite refractory fiber described in this example 1 comprises the following steps:
(1) blending zirconia, corundum powder, wollastonite, titanium dioxide and basalt and crushing the mixture into 350 meshes to obtain a main material, crushing a refractory additive into 400 meshes, mixing the refractory additive powder and the main material powder, and keeping the temperature at 750 ℃ for 3 hours to obtain a premix;
(2) adding the anti-corrosion additive into the premix, uniformly mixing, heating the uniformly mixed mixture to 1900 ℃ for melting to obtain molten liquid, and filtering the molten liquid to remove impurities;
(3) and (3) enabling the filtrate to flow into a stirring kettle at 2150 ℃ and continuously stirring to obtain a spinning solution, enabling the spinning solution to flow out of a discharge port and enter a centrifugal head, enabling the spinning solution to be centrifugally thrown out through a small hole of the centrifugal head, and cooling and collecting to obtain the composite refractory fiber.
Wherein:
the centrifugal speed of the centrifugal head is 2 ten thousand rpm, and the aperture of the small hole is 0.4 mm.
The compressive strength of the composite refractory fiber prepared in the embodiment 1 is 5.5MPa, the refractory temperature is 2050 ℃, the flexural strength is 12.5MPa, and the slow release rate is 98.0%.
Example 2
The composite refractory fiber described in this example 2 is composed of the following raw materials in parts by mass:
65 parts of zirconium oxide, 20 parts of corundum powder, 13 parts of wollastonite, 8 parts of titanium dioxide, 30 parts of basalt, 5 parts of refractory additive and 12.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 50.50％、CaO 46.20％、Al2O3 0.80％、Fe2O3 0.56％、MgO 0.86％、TiO2 0.65％、K2O 0.85％、Na20.32 percent of O and 1.0 percent of loss on ignition.
The chemical composition of the basalt is as follows: SiO 22 55.50％、Al2O3 16.20％、Fe2O3 4.50％、CaO 9.35％、MgO 6.50％、NaO 4.50％、K2O 1.40％、TiO21.20 percent and loss on ignition of 1.0 percent.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 13 parts of antimony trioxide, 17 parts of zinc oxide, 28 parts of silicon carbide and 42 parts of aluminum trifluoride.
The anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 10 parts of polyacrylonitrile, 16 parts of molybdenum phenolic resin, 20 parts of triphenylaminosilane, 17 parts of polyethylene oxide, 17 parts of chlorinated rubber and 20 parts of sodium oleate.
The preparation method of the composite refractory fiber described in this example 2 comprises the following steps:
(1) blending zirconia, corundum powder, wollastonite, titanium dioxide and basalt and crushing the mixture into 350 meshes to obtain a main material, crushing a refractory additive into 400 meshes, mixing the refractory additive powder with the main material powder, and keeping the temperature at 850 ℃ for 3 hours to obtain a premix;
(2) adding the anti-corrosion additive into the premix, uniformly mixing, heating the uniformly mixed mixture to 1950 ℃ for melting to obtain molten liquid, and filtering the molten liquid to remove impurities;
(3) and enabling the filtrate to flow into a stirring kettle at 2250 ℃ for continuous stirring to obtain a spinning solution, enabling the spinning solution to flow out from a discharge port and enter a centrifugal head, enabling the spinning solution to be centrifugally thrown out through a small hole of the centrifugal head, and cooling and collecting to obtain the composite refractory fiber.
Wherein:
the centrifugal speed of the centrifugal head is 3 ten thousand rpm, and the aperture of the small hole is 0.4 mm.
The compressive strength of the composite refractory fiber prepared in the embodiment 2 is 7.3MPa, the refractory temperature is 2200 ℃, the flexural strength is 16.5MPa, and the slow release rate is 99.3%.
Example 3
The composite refractory fiber described in this embodiment 3 is composed of the following raw materials in parts by mass:
62 parts of zirconium oxide, 15 parts of corundum powder, 15 parts of wollastonite, 6.5 parts of titanium dioxide, 20 parts of basalt, 4 parts of refractory additive and 10.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 50.50％、CaO 46.20％、Al2O3 0.80％、Fe2O3 0.56％、MgO 0.86％、TiO2 0.65％、K2O 0.85％、Na20.32 percent of O and 1.0 percent of loss on ignition.
The chemical composition of the basalt is as follows: SiO 22 55.50％、Al2O3 16.20％、Fe2O3 4.50％、CaO 9.35％、MgO 6.50％、NaO 4.50％、K2O 1.40％、TiO21.20 percent and loss on ignition of 1.0 percent.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 13 parts of antimony trioxide, 12 parts of zinc oxide, 30 parts of silicon carbide and 45 parts of aluminum trifluoride.
The anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 11 parts of polyacrylonitrile, 17 parts of molybdenum phenolic resin, 20 parts of triphenylaminosilane, 17 parts of polyethylene oxide, 15 parts of chlorinated rubber and 20 parts of sodium oleate.
The preparation method of the composite refractory fiber described in this example 3 comprises the following steps:
(1) blending zirconia, corundum powder, wollastonite, titanium dioxide and basalt and crushing the mixture into 330 meshes to obtain a main material, crushing a refractory additive into 400 meshes, mixing the refractory additive powder and the main material powder, and keeping the temperature at 800 ℃ for 2.5 hours to obtain a premix;
(2) adding the anti-corrosion additive into the premix, uniformly mixing, heating the uniformly mixed mixture to 1950 ℃ for melting to obtain molten liquid, and filtering the molten liquid to remove impurities;
(3) and enabling the filtrate to flow into a stirring kettle at 2250 ℃ for continuous stirring to obtain a spinning solution, enabling the spinning solution to flow out from a discharge port and enter a centrifugal head, enabling the spinning solution to be centrifugally thrown out through a small hole of the centrifugal head, and cooling and collecting to obtain the composite refractory fiber.
Wherein:
the centrifugal speed of the centrifugal head is 3 ten thousand rpm, and the aperture of the small hole is 0.5 mm.
The compressive strength of the composite refractory fiber prepared in the embodiment 3 is 6.5MPa, the fire-resistant temperature is 2150 ℃, the flexural strength is 14.2MPa, and the slow release rate is 98.5%.
Comparative example 1
The composite refractory fiber of comparative example 1 is composed of the following raw materials in parts by mass:
65 parts of zirconium oxide, 20 parts of corundum powder, 13 parts of wollastonite, 8 parts of titanium dioxide, 30 parts of basalt, 5 parts of refractory additive and 12.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 50.50％、CaO 46.20％、Al2O3 0.80％、Fe2O3 0.56％、MgO 0.86％、TiO2 0.65％、K2O 0.85％、Na20.32 percent of O and 1.0 percent of loss on ignition.
The chemical composition of the basalt is as follows: SiO 22 55.50％、Al2O3 16.20％、Fe2O3 4.50％、CaO 9.35％、MgO 6.50％、NaO 4.50％、K2O 1.40％、TiO21.20 percent and loss on ignition of 1.0 percent.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide and silicon carbide.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 30 parts of antimony trioxide, 30 parts of zinc oxide and 40 parts of silicon carbide.
The anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 10 parts of polyacrylonitrile, 16 parts of molybdenum phenolic resin, 20 parts of triphenylaminosilane, 17 parts of polyethylene oxide, 17 parts of chlorinated rubber and 20 parts of sodium oleate.
The preparation method of the composite refractory fiber described in this comparative example 1 is the same as that of example 2.
The composite refractory fiber prepared in comparative example 1 has a compressive strength of 2.1MPa, a refractory temperature of 1650 ℃, a flexural strength of 5.2MPa and a slow release rate of 98.5%.
Comparative example 2
The composite refractory fiber of comparative example 2 is composed of the following raw materials in parts by mass:
65 parts of zirconium oxide, 30 parts of corundum powder, 20 parts of wollastonite, 8 parts of titanium dioxide, 5 parts of refractory additive and 12.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 50.50％、CaO 46.20％、Al2O3 0.80％、Fe2O3 0.56％、MgO 0.86％、TiO2 0.65％、K2O 0.85％、Na20.32 percent of O and 1.0 percent of loss on ignition.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 13 parts of antimony trioxide, 17 parts of zinc oxide, 28 parts of silicon carbide and 42 parts of aluminum trifluoride.
The anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 10 parts of polyacrylonitrile, 16 parts of molybdenum phenolic resin, 20 parts of triphenylaminosilane, 17 parts of polyethylene oxide, 17 parts of chlorinated rubber and 20 parts of sodium oleate.
The preparation method of the composite refractory fiber described in this comparative example 2 is the same as that of example 2.
The composite refractory fiber prepared in comparative example 2 has a compressive strength of 2.8MPa, a fire resistance temperature of 1780 ℃, a flexural strength of 6.0MPa, and a slow release rate of 98.5%.
Comparative example 3
The composite refractory fiber of comparative example 3 is composed of the following raw materials in parts by mass:
65 parts of zirconium oxide, 20 parts of corundum powder, 13 parts of wollastonite, 8 parts of titanium dioxide, 30 parts of basalt, 5 parts of refractory additive and 12.5 parts of anticorrosive additive.
Wherein:
the chemical composition of the wollastonite is as follows: SiO 22 50.50％、CaO 46.20％、Al2O3 0.80％、Fe2O3 0.56％、MgO 0.86％、TiO2 0.65％、K2O 0.85％、Na20.32 percent of O and 1.0 percent of loss on ignition.
The chemical composition of the basalt is as follows: SiO 22 55.50％、Al2O3 16.20％、Fe2O3 4.50％、CaO 9.35％、MgO 6.50％、NaO 4.50％、K2O 1.40％、TiO21.20 percent and loss on ignition of 1.0 percent.
The fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
The refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 13 parts of antimony trioxide, 17 parts of zinc oxide, 28 parts of silicon carbide and 42 parts of aluminum trifluoride.
The anticorrosion additive is a mixture of polyacrylonitrile, triphenylaminosilane, polyethylene oxide and sodium oleate.
The corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 24 parts of polyacrylonitrile, 22 parts of triphenylaminosilane, 30 parts of polyethylene oxide and 24 parts of sodium oleate.
The preparation method of the composite refractory fiber described in this comparative example 3 is the same as that of example 2.
The composite refractory fiber prepared in comparative example 3 had compressive strength of 3.6MPa, refractory temperature of 1880 deg.C, flexural strength of 6.8MPa, and sustained release rate of 93.6%.

Claims (9)

1. A composite refractory fiber characterized by: the composite material consists of the following raw materials in parts by mass:
60-65 parts of zirconium oxide, 15-20 parts of corundum powder, 10-15 parts of wollastonite, 5-8 parts of titanium dioxide, 20-30 parts of basalt, 3-5 parts of refractory additive and 8.5-12.5 parts of anticorrosive additive.
2. The composite refractory fiber of claim 1, wherein: the chemical composition of the wollastonite is as follows: SiO 2247.50-52.80％、CaO 44.50-47.00％、Al2O3 0-1.95％、Fe2O3 0.30-1.50％、MgO 0.20-1.95％、TiO20-0.80％、K2O 0-0.85％、Na20 to 0.50 percent of O and 1.0 to 2.5 percent of loss on ignition.
3. The composite refractory fiber of claim 1, wherein: the chemical composition of the basalt is as follows: SiO 2251.00-56.50％、Al2O3 15.00-18.50％、Fe2O3 3.00-5.50％、CaO 8.50-10.35％、MgO 5.50-7.50％、NaO 3.00-5.50％、K2O 1.20-1.60％、TiO21.00-1.20% and 0.50-1.00% of loss on ignition.
4. The composite refractory fiber of claim 1, wherein: the fire-resistant additive is a mixture of antimony trioxide, zinc oxide, silicon carbide and aluminum trifluoride.
5. The composite refractory fiber of claim 4, wherein: the refractory additive comprises the following raw materials in parts by weight based on 100 parts by weight of the refractory additive: 8-13 parts of antimony trioxide, 12-18 parts of zinc oxide, 25-30 parts of silicon carbide and 39-45 parts of aluminum trifluoride.
6. The composite refractory fiber of claim 1, wherein: the anticorrosion additive is a mixture of polyacrylonitrile, molybdenum phenolic resin, triphenylaminosilane, polyethylene oxide, chlorinated rubber and sodium oleate.
7. The composite refractory fiber of claim 6, wherein: the corrosion-resistant additive comprises the following raw materials in parts by weight based on 100 parts by weight of the corrosion-resistant additive: 10-15 parts of polyacrylonitrile, 15-20 parts of molybdenum phenolic resin, 20-25 parts of triphenylaminosilane, 15-20 parts of polyethylene oxide, 15-20 parts of chlorinated rubber and 20-25 parts of sodium oleate.
8. A method of making the composite refractory fiber of claim 1, wherein: the method comprises the following steps:
(1) blending zirconia, corundum powder, wollastonite, titanium dioxide and basalt and crushing the mixture into 350 meshes of 300 meshes to obtain a main material, crushing the refractory additive into 400 meshes of 350 meshes, mixing the refractory additive powder with the main material powder, and keeping the temperature at 850 ℃ of 750 meshes for 2-3 hours to obtain a premix;
(2) adding the anti-corrosion additive into the premix, uniformly mixing, heating the uniformly mixed mixture to 1900-1950 ℃ for melting to obtain molten liquid, and filtering the molten liquid to remove impurities;
(3) and enabling the filtrate to flow into a stirring kettle with the temperature of 2150-2250 ℃ for continuous stirring to obtain a spinning solution, enabling the spinning solution to flow out from a discharge port and enter a centrifugal head, enabling the spinning solution to be centrifugally thrown out through a small hole of the centrifugal head, and cooling and collecting to obtain the composite refractory fiber.
9. The method of making a composite refractory fiber according to claim 8, wherein: the centrifugal speed of the centrifugal head in the step (3) is 2-3 ten thousand rpm, and the aperture of the small hole is 0.4-0.5 mm.
CN202010772190.4A 2020-08-04 2020-08-04 Composite refractory fiber and preparation method thereof Pending CN112047745A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113860849A (en) * 2021-10-27 2021-12-31 薛四兰 High-strength high-temperature-resistant fabric and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793041A (en) * 1969-05-16 1974-02-19 Minnesota Mining & Mfg Refractory fibers of zirconia and silica mixtures
GB2019386A (en) * 1978-03-16 1979-10-31 Cape Insulation Ltd Fibre composition
CN1116422A (en) * 1993-01-15 1996-02-07 摩根坩埚有限公司 Saline soluble inorganic fibres
CN101298384A (en) * 2008-06-26 2008-11-05 武汉科技大学 Biodegradable refractory ceramic fibre and preparation thereof
CN102977573A (en) * 2012-11-29 2013-03-20 王忠举 Refractory fiber material
CN105712716A (en) * 2016-02-16 2016-06-29 中材科技股份有限公司 Zirconium oxide fiber ceramic plate and preparing method thereof
CN106396697A (en) * 2016-08-30 2017-02-15 长兴盟友耐火材料有限公司 Preparation method of anti-oxidation zirconia-carbon composite fireproof fiber
CN107675293A (en) * 2017-08-24 2018-02-09 浙江科屹耐火材料有限公司 A kind of anticorrosive ceramic fibre

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793041A (en) * 1969-05-16 1974-02-19 Minnesota Mining & Mfg Refractory fibers of zirconia and silica mixtures
GB2019386A (en) * 1978-03-16 1979-10-31 Cape Insulation Ltd Fibre composition
CN1116422A (en) * 1993-01-15 1996-02-07 摩根坩埚有限公司 Saline soluble inorganic fibres
CN101298384A (en) * 2008-06-26 2008-11-05 武汉科技大学 Biodegradable refractory ceramic fibre and preparation thereof
CN102977573A (en) * 2012-11-29 2013-03-20 王忠举 Refractory fiber material
CN105712716A (en) * 2016-02-16 2016-06-29 中材科技股份有限公司 Zirconium oxide fiber ceramic plate and preparing method thereof
CN106396697A (en) * 2016-08-30 2017-02-15 长兴盟友耐火材料有限公司 Preparation method of anti-oxidation zirconia-carbon composite fireproof fiber
CN107675293A (en) * 2017-08-24 2018-02-09 浙江科屹耐火材料有限公司 A kind of anticorrosive ceramic fibre

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
冯胜: "《精细化工手册 上》", 31 December 1993, 广东科技出版社 *
周祥兴: "《合成树脂新资料手册》", 31 May 2002, 中国物资出版社 *
闫承花: "《化学纤维生产工艺学》", 31 January 2018, 东华大学出版社 *
马世昌: "《化学物质辞典》", 30 April 1999, 陕西科学技术出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113860849A (en) * 2021-10-27 2021-12-31 薛四兰 High-strength high-temperature-resistant fabric and preparation method thereof

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