CN113860849B - High-strength high-temperature-resistant fabric and preparation method thereof - Google Patents
High-strength high-temperature-resistant fabric and preparation method thereof Download PDFInfo
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- CN113860849B CN113860849B CN202111257459.6A CN202111257459A CN113860849B CN 113860849 B CN113860849 B CN 113860849B CN 202111257459 A CN202111257459 A CN 202111257459A CN 113860849 B CN113860849 B CN 113860849B
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- 239000004744 fabric Substances 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000835 fiber Substances 0.000 claims abstract description 106
- 230000003647 oxidation Effects 0.000 claims abstract description 78
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 78
- 239000000843 powder Substances 0.000 claims abstract description 60
- 239000002994 raw material Substances 0.000 claims abstract description 31
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 13
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 84
- 229910052799 carbon Inorganic materials 0.000 claims description 74
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 57
- 239000002245 particle Substances 0.000 claims description 55
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 34
- 239000003054 catalyst Substances 0.000 claims description 32
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 13
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 13
- 229910001626 barium chloride Inorganic materials 0.000 claims description 13
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 13
- 235000011152 sodium sulphate Nutrition 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000011268 mixed slurry Substances 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 8
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 5
- 238000009960 carding Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000010301 surface-oxidation reaction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 20
- 239000007788 liquid Substances 0.000 description 19
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000009987 spinning Methods 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 239000011258 core-shell material Substances 0.000 description 5
- 229910021538 borax Inorganic materials 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 229910052845 zircon Inorganic materials 0.000 description 4
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000012979 petrochemical cracking Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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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
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- 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
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
-
- 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
- C03C25/12—General methods of coating; Devices therefor
- C03C25/16—Dipping
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
- C04B2111/763—High temperatures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to the field of high-temperature-resistant materials, and discloses a high-strength high-temperature-resistant fabric and a preparation method thereof. The high-strength high-temperature-resistant fabric comprises the following raw materials in parts by weight: 100 parts of modified refractory fiber, 25-35 parts of silica sol, 4-6 parts of styrene-acrylic emulsion and Al 2 O 3 3.5-5.5 parts of powder and ZrO 2 4.5 to 6.5 portions of powder and TiO 2 2.5-4.0 parts of powder, 0-0.15 part of dispersant and 150-200 parts of water; the modified refractory fiber is a glass state refractory fiber with the surface subjected to oxidation treatment. The invention adopts the surface oxidation modified glass state refractory fiber as the base cloth, can improve the bonding strength between the inorganic powder and the base cloth, and leads the high temperature resistant fabric to have better mechanical property.
Description
Technical Field
The invention relates to the field of high-temperature-resistant materials, in particular to a high-strength high-temperature-resistant fabric and a preparation method thereof.
Background
The refractory fiber has the advantages of light weight, small heat conductivity coefficient, small heat capacity and the like, and simultaneously has good infrared heating effect, and the refractory fiber product can effectively save energy and is an ideal energy-saving synergistic material. In addition, as a fibrous light refractory material, the refractory fiber also has better flexibility, so that a high-temperature resistant fabric with the advantages of low heat conductivity coefficient, thermal shock resistance, light weight and the like can be obtained, and the fibrous light refractory material can be widely applied to the fields of metallurgy, building materials, petroleum, chemical industry, ships, electric power, aerospace and the like, for example, used as linings of various industrial kilns, boilers and petrochemical cracking furnaces, and used for heat preservation of heat pipelines, high-rise buildings and various thermal equipment.
The existing high-temperature resistant fabric is usually prepared by manufacturing refractory fibers into a fiber mesh and then compounding the fiber mesh with inorganic powder such as silicon dioxide, zirconium oxide and the like, and the problem of low bonding strength between the fiber mesh and the inorganic powder often exists, so that the high-temperature resistant fabric has poor mechanical property and is easy to crack and deform in the transportation and use processes.
Disclosure of Invention
Aiming at the technical problem of poor mechanical property of the high-temperature-resistant fabric, the invention provides the high-strength high-temperature-resistant fabric and the preparation method thereof. The fabric of the invention adopts the glass state fire resistant fiber with surface oxidation modification as the base cloth, which can improve the bonding strength between the inorganic powder and the base cloth, and lead the high temperature resistant fabric to have better mechanical property.
The specific technical scheme of the invention is as follows:
a high-strength high-temperature resistant fabric comprises, by weight,the method comprises the following raw materials: 100 parts of modified refractory fiber, 25-35 parts of silica sol, 4-6 parts of styrene-acrylic emulsion and Al 2 O 3 3.5-5.5 parts of powder and ZrO 2 4.5 to 6.5 portions of powder and TiO 2 2.5-4.0 parts of powder, 0-0.15 part of dispersant and 150-200 parts of water; the modified refractory fiber is a glass state refractory fiber with the surface subjected to oxidation treatment.
According to the invention, through carrying out surface oxidation treatment on the glass-state refractory fiber, hydroxyl can be introduced to the surface of the refractory fiber, so that the combination of the refractory fiber, silica sol and styrene-acrylic emulsion is facilitated, and Al is improved 2 O 3 、ZrO 2 And TiO 2 The bonding strength of the powder on the refractory fiber base cloth is improved, so that the mechanical property of the high-temperature resistant fabric is improved.
Preferably, the preparation method of the modified refractory fiber comprises the following steps: and immersing the glass state refractory fiber into hydrogen peroxide, taking out after immersion, washing and drying to obtain the modified refractory fiber.
Preferably, the concentration of the hydrogen peroxide is 15-25wt%.
Preferably, the soaking time is 0.5-1h.
Preferably, the silica sol contains 25 to 35wt% of silica, and the silica has a particle size of 50 to 80nm.
Preferably, the Al is 2 O 3 Powder of ZrO 2 Powder and TiO 2 The particle size of the powder is 50-100nm.
Preferably, the glass-state refractory fiber adopts SO 2 The oxidation catalyst @ carbon @ barium sulfate particles are prepared as a defoaming agent; the SO 2 In the oxidation catalyst @ carbon @ barium sulfate particles, the thickness of the carbon layer is 0.5 to 1.5 μm, and the thickness of the barium sulfate layer is 0.3 to 0.5 μm.
The glass-state refractory fiber is prepared by melting and homogenizing raw materials and then blowing or centrifugally throwing. During the melting process of the raw materials, a large amount of gas is generated, and due to the influence of factors such as the properties of the raw materials, melting conditions and the like, the gas is not easy to discharge from a molten liquid, and can remain in the refractory fibers in the form of bubbles to influence the mechanical property and the high-temperature resistance of the refractory fibers.
Therefore, SO is added in the preparation process of the glass state refractory fiber 2 Oxidation catalyst @ carbon @ barium sulfate particles which are capable of performing the following functions:
in the early stage of raw material melting and homogenization, the carbon layer is coated on the SO 2 In addition to the oxidation catalyst, SO can be prevented 2 Contact with catalyst to reduce SO 2 Is oxidized to SO 3 Due to SO 2 Solubility in molten solution relative to SO 3 In other words, the solubility of the gas generated by the reaction of carbon and barium sulfate in the molten liquid is poor, and other bubbles in the molten liquid can be driven to be discharged;
in the later stage of melting and homogenizing the raw material, the carbon layer becomes thinner and has pores along with the continuous reaction of carbon and barium sulfate, SO that residual SO in the molten liquid 2 Can react with SO 2 Conversion to SO by contact with an oxidation catalyst 3 By virtue of the better solubility of the latter, sulfur-containing bubbles (mainly SO) in the melt can be reduced 2 ) And (4) remaining.
In the above manner, the SO of the present invention 2 The oxidation catalyst @ carbon @ barium sulfate particles can promote the discharge of bubbles in molten liquid and reduce the residual of sulfur-containing bubbles, so that the bubbles in the refractory fiber are reduced, and the refractory fiber has better mechanical property and high temperature resistance.
In SO 2 The thickness of the oxidation catalyst @ carbon @ barium sulfate particles, the carbon layer and the barium sulfate layer will affect the defoaming effect. When the thickness of the carbon layer is too large relative to the barium sulfate layer, voids still do not appear in the carbon layer or are too few after the barium sulfate is completely reacted, SO that residual SO in the molten liquid is caused 2 Is difficult to be oxidized into SO 3 Resulting in the presence of more sulfur-containing bubbles in the refractory fibers. When the thickness of the carbon layer is too small relative to the barium sulfate layer, the carbon layer may be porous too early, which is not favorable for discharging other bubbles in the melt.
Preferably, the preparation method of the glass refractory fiber comprises the following steps:
(2.1) weighing the following raw materials in parts by weight: 55-65 parts of silica sand, 0-8 parts of fly ash and aluminum oxide25-35 parts of borax 13-18 parts, 8-12 parts of quicklime, 10-15 parts of talcum powder, 8-12 parts of zircon powder and SO 2 5-7 parts of oxidation catalyst @ carbon @ barium sulfate particles;
(2.2) blending and grinding all the raw materials, heating to 1650-1750 ℃, and stirring at 1650-1750 ℃ for 6-7h to obtain molten liquid;
and (2.3) adding the molten liquid into a spinning machine to carry out centrifugal spinning fiber forming, so as to obtain the glass-state refractory fiber.
Preferably, the SO 2 The preparation method of the oxidation catalyst @ carbon @ barium sulfate particles comprises the following steps of:
(1.1) dispersing graphite powder into a nitric acid solution of 12.0-14.5mol/L, stirring for 1-1.5h at 50-55 ℃, and performing centrifugal separation and drying to obtain graphite powder with activated surfaces; dissolving thiourea and ferric chloride in alcohol, adding graphite powder with activated surface, dispersing uniformly, stirring for 2-5h, evaporating to dryness, calcining at 800-900 deg.C for 3-5h in nitrogen atmosphere, and grinding to obtain SO 2 An oxidation catalyst;
(1.2) reacting SO 2 Placing the oxidation catalyst in a closed container, maintaining the temperature at 700-900 deg.C, introducing nitrogen and acetylene, and maintaining for 3-4 hr to obtain SO 2 Oxidation catalyst @ carbon particles;
(1.3) reacting SO 2 Dispersing the oxidation catalyst @ carbon particles into a barium chloride solution, stirring for 30-50min, dropwise adding a sodium sulfate solution, completing dropwise adding within 60-80min, and separating a product to obtain SO 2 Oxidation catalyst @ carbon @ barium sulfate particles.
In the step (1.1), the surface of the graphite powder with activated surface has more oxygen-containing groups (such as hydroxyl, carboxyl and the like), thiourea and iron ions can be bonded to the surface of the graphite powder through hydrogen bonds, coordination bonds, electrostatic attraction and the like, and N, S and Fe atom doping can be formed on the surface of the graphite powder after oxygen-free calcination to obtain the graphite powder capable of catalyzing SO 2 An oxidation catalyst. In step (1.2), by vapor deposition, it is possible to remove the organic solvent from the SO 2 A dense carbon layer is formed outside the oxidation catalyst to prevent SO from being generated in the early stage of melting 2 With SO 2 Oxidation catalyst contact and SO exposure during late melting 2 An oxidation catalyst. In step (1.3), a reaction takes place between barium chloride and sodium sulfate, in SO 2 The barium sulfate sediment is generated on the surface of the oxidation catalyst @ carbon particles, so that a barium sulfate layer is coated outside the carbon layer, and the contact and reaction of carbon and barium sulfate are facilitated in the melting process.
The invention adopts graphite powder doped with N, S and Fe atoms as SO 2 And the catalyst is oxidized, so that hydroxyl can be formed on the surface of the graphite after the refractory fiber is modified (surface oxidation treatment), which is beneficial to improving the bonding strength between the refractory fiber base cloth and the inorganic powder and further improving the mechanical property of the high-temperature resistant fabric.
Preferably, in the step (1.3), the concentration of the barium chloride solution is 0.02-0.04mol/L; the concentration of the sodium sulfate solution is 0.1-0.2mol/L; the SO 2 The mass-to-volume ratio of the oxidation catalyst @ carbon particles to the barium chloride solution to the sodium sulfate solution is 1g.
A preparation method of the high-strength high-temperature-resistant fabric comprises the following steps:
s1: taking refractory fibers as raw materials, opening, carding and cross lapping to form a fiber web, and performing layering, needle punching forming and hot pressing forming on the fiber web to obtain refractory fiber base cloth;
s2: uniformly mixing a dispersing agent, silica sol, styrene-acrylic emulsion and water, and adding Al into the mixture 2 O 3 Powder of ZrO 2 Powder and TiO 2 Uniformly dispersing the powder to obtain mixed slurry;
s3: and coating the mixed slurry on refractory fiber base cloth, rolling, drying and calcining, and cooling to obtain the high-strength high-temperature-resistant fabric.
Compared with the prior art, the invention has the following advantages:
(1) The glass-state refractory fiber with the surface modified by oxidation is used as base cloth, so that the bonding strength between inorganic powder and the base cloth can be improved, and the high-temperature-resistant fabric has better mechanical property;
(2) Adding SO during the preparation of the glass-state refractory fiber 2 Oxidation catalyst @ carbon @ barium sulfate particles as a catalyst for the removal ofThe foaming agent can reduce bubbles in the refractory fiber, so that the mechanical property and the high-temperature resistance of the high-temperature-resistant fabric are improved.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are intended only to illustrate the invention in detail and are not intended to limit the scope of the invention in any way.
Example 1
A high-strength high-temperature-resistant fabric comprises the following raw materials in parts by weight: 100 parts of modified refractory fiber, 35 parts of silica sol, 4 parts of styrene-acrylic emulsion and Al 2 O 3 3.5 parts of powder, zrO 2 4.5 parts of powder and TiO 2 2.5 parts of powder and 150 parts of water. In the silica sol, the content of silica is 25wt%, and the particle size of the silica is 50-80nm; the Al is 2 O 3 Powder, zrO 2 Powder and TiO 2 The particle size of the powder is 50-100nm.
A preparation method of the high-strength high-temperature-resistant fabric comprises the following steps:
(1) Preparation of SO 2 Oxidation catalyst @ carbon @ barium sulfate particles:
(1.1) dispersing graphite powder into a nitric acid solution of 12.0mol/L, stirring for 1.5h at 55 ℃, and performing centrifugal separation and drying to obtain graphite powder with activated surfaces; dissolving thiourea and ferric chloride in alcohol with the volume fraction of 40% of ethanol, adding surface-activated graphite powder, wherein the mass volume ratio of thiourea, ferric chloride, surface-activated graphite powder to alcohol is 1.0g 2 An oxidation catalyst;
(1.2) adding SO 2 Placing the oxidation catalyst in a closed container, keeping the temperature at 700 ℃, respectively introducing nitrogen and acetylene at the flow rates of 4L/min and 4L/min, and continuing for 4h to obtain SO 2 Oxidation catalyst @ carbon particles;
(1.3) adding SO 2 Dispersing the oxidation catalyst @ carbon particles into 0.02mol/L barium chloride solution, stirring for 30min, and dropwise adding 0.1mol/L sodium sulfate solutionThe dropwise addition is completed within 80min, the SO 2 The mass-to-volume ratio of the oxidation catalyst @ carbon particles, the barium chloride solution, and the sodium sulfate solution was 1g 2 Oxidation catalyst @ carbon @ barium sulfate particles, wherein, SO 2 The diameter of the oxidation catalyst layer is 0.5-2.5 μm, the thickness of the carbon layer is 0.78-1.40 μm, and the thickness of the barium sulfate layer is 0.36-0.48 μm.
(2) Preparing modified refractory fiber:
(2.1) weighing the following raw materials in parts by weight: 55 parts of silica sand, 8 parts of fly ash, 25 parts of alumina, 18 parts of borax, 8 parts of quicklime, 15 parts of talcum powder, 8 parts of zircon powder and SO 2 5-7 parts of oxidation catalyst @ carbon @ barium sulfate particles;
(2.2) blending and grinding all the raw materials, heating to 1650 ℃, and stirring for 7 hours at 1650 ℃ to obtain molten liquid;
(2.3) adding the molten liquid into a spinning machine to carry out centrifugal spinning fiber forming to obtain glass state refractory fiber;
and (2.4) immersing the glassy state refractory fiber into 25wt% of hydrogen peroxide, taking out after 0.5h of immersion, washing and drying to obtain the modified refractory fiber.
(3) Preparing a fabric:
(3.1) opening, carding and cross lapping are carried out on the refractory fibers serving as raw materials to form a fiber net, and layering, needle punching forming and hot pressing forming are carried out on the fiber net to obtain refractory fiber base cloth;
(3.2) uniformly mixing the dispersing agent, the silica sol, the styrene-acrylic emulsion and the water, and adding Al into the mixture 2 O 3 Powder, zrO 2 Powder and TiO 2 Uniformly dispersing the powder to obtain mixed slurry;
and (3.3) coating the mixed slurry on a refractory fiber base fabric, rolling and drying, calcining at 500 ℃ for 1.5h, and cooling to obtain the high-strength high-temperature-resistant fabric.
Example 2
A high-strength high-temperature-resistant fabric comprises the following raw materials in parts by weight: 100 parts of modified refractory fiber, 30 parts of silica sol, 5 parts of styrene-acrylic emulsion and Al 2 O 3 4.5 portions of powder，ZrO 2 5.5 parts of powder and TiO 2 3.5 parts of powder, 0.06 part of lauryl sodium sulfate and 180 parts of water. In the silica sol, the content of silica is 30wt%, and the particle size of the silica is 50-80nm; the Al is 2 O 3 Powder, zrO 2 Powder and TiO 2 The particle size of the powder is 50-100nm.
A preparation method of the high-strength high-temperature-resistant fabric comprises the following steps:
(1) Preparation of SO 2 Oxidation catalyst @ carbon @ barium sulfate particles:
(1.1) dispersing graphite powder into a nitric acid solution of 13.0mol/L, stirring for 1h at 55 ℃, and performing centrifugal separation and drying to obtain graphite powder with activated surfaces; dissolving thiourea and ferric chloride in alcohol with the volume fraction of 35% of ethanol, adding surface-activated graphite powder, wherein the mass volume ratio of the thiourea to the ferric chloride to the surface-activated graphite powder to the alcohol is 1.2g 2 An oxidation catalyst;
(1.2) reacting SO 2 Placing the oxidation catalyst in a closed container, keeping the temperature at 800 deg.C, introducing nitrogen and acetylene at flow rates of 5L/min and 7L/min respectively, and maintaining for 3.5h to obtain SO 2 Oxidation catalyst @ carbon particles;
(1.3) adding SO 2 Dispersing the oxidation catalyst @ carbon particles into 0.03mol/L barium chloride solution, stirring for 40min, dropwise adding 0.15mol/L sodium sulfate solution, and completing dropwise adding within 70min, wherein SO is 2 The mass-to-volume ratio of the oxidation catalyst @ carbon particles, the barium chloride solution and the sodium sulfate solution was 1g 2 Oxidation catalyst @ carbon @ barium sulfate particles, in which SO 2 The diameter of the oxidation catalyst layer is 0.5-2.5 μm, the thickness of the carbon layer is 0.74-1.35 μm, and the thickness of the barium sulfate layer is 0.35-0.46 μm.
(2) Preparing modified refractory fiber:
(2.1) weighing the following raw materials in parts by weight: 60 parts of silica sand, 4 parts of fly ash, 30 parts of alumina, 15 parts of borax, 10 parts of quicklime and talcum powder13 parts of zircon powder, 10 parts of SO 2 6 parts of oxidation catalyst @ carbon @ barium sulfate particles;
(2.2) blending and grinding all the raw materials, heating to 1700 ℃, and stirring at 1700 ℃ for 6.5 hours to obtain molten liquid;
(2.3) adding the molten liquid into a spinning machine to carry out centrifugal spinning fiber forming to obtain glass state refractory fiber;
and (2.4) immersing the glassy state refractory fiber into 20wt% of hydrogen peroxide, taking out after immersing for 45min, washing and drying to obtain the modified refractory fiber.
(3) Preparing a fabric:
(3.1) opening, carding and cross lapping are carried out on the refractory fibers serving as raw materials to form a fiber net, and layering, needle punching forming and hot pressing forming are carried out on the fiber net to obtain refractory fiber base cloth;
(3.2) after uniformly mixing the dispersing agent, the silica sol, the styrene-acrylic emulsion and the water, adding Al into the mixture 2 O 3 Powder, zrO 2 Powder and TiO 2 Uniformly dispersing the powder to obtain mixed slurry;
and (3.3) coating the mixed slurry on a refractory fiber base fabric, rolling, drying, calcining at 500 ℃ for 1.5h, and cooling to obtain the high-strength high-temperature-resistant fabric.
Example 3
A high-strength high-temperature-resistant fabric comprises the following raw materials in parts by weight: 100 parts of modified refractory fiber, 25 parts of silica sol, 6 parts of styrene-acrylic emulsion and Al 2 O 3 Powder 5.5 parts, zrO 2 Powder 6.5 parts, tiO 2 4.0 parts of powder and 200 parts of water. In the silica sol, the content of silica is 35wt%, and the particle size of the silica is 50-80nm; the Al is 2 O 3 Powder of ZrO 2 Powder and TiO 2 The particle size of the powder is 50-100nm.
A preparation method of the high-strength high-temperature-resistant fabric comprises the following steps:
(1) Preparation of SO 2 Oxidation catalyst @ carbon @ barium sulfate particles:
(1.1) graphite powder was dispersed in a 14.5mol/L nitric acid solution at 50Stirring at the temperature of 1 hour, and performing centrifugal separation and drying to obtain graphite powder with activated surfaces; dissolving thiourea and ferric chloride in alcohol with the volume fraction of 30% of ethanol, adding surface-activated graphite powder into the alcohol, wherein the mass volume ratio of the thiourea to the ferric chloride to the surface-activated graphite powder to the alcohol is 1.4g 2 An oxidation catalyst;
(1.2) adding SO 2 Placing the oxidation catalyst in a closed container, maintaining the temperature at 900 deg.C, introducing nitrogen and acetylene at flow rates of 6L/min and 10L/min respectively, and maintaining for 3 hr to obtain SO 2 Oxidation catalyst @ carbon particles;
(1.3) adding SO 2 Dispersing the oxidation catalyst @ carbon particles into 0.04mol/L barium chloride solution, stirring for 50min, dropwise adding 0.2mol/L sodium sulfate solution, and completing dropwise adding within 60min, wherein SO is 2 The mass-to-volume ratio of the oxidation catalyst @ carbon particles, the barium chloride solution, and the sodium sulfate solution was 1g 2 Oxidation catalyst @ carbon @ barium sulfate particles, wherein, SO 2 The diameter of the oxidation catalyst layer is 0.5-2.5 μm, the thickness of the carbon layer is 0.62-1.18 μm, and the thickness of the barium sulfate layer is 0.33-0.45 μm.
(2) Preparing modified refractory fiber:
(2.1) weighing the following raw materials in parts by weight: 65 parts of silica sand, 35 parts of alumina, 13 parts of borax, 12 parts of quicklime, 10 parts of talcum powder, 12 parts of zircon powder and SO 2 7 parts of oxidation catalyst @ carbon @ barium sulfate particles;
(2.2) blending and grinding all the raw materials, heating to 1750 ℃, and stirring for 6 hours at 1750 ℃ to obtain molten liquid;
(2.3) adding the molten liquid into a spinning machine to carry out centrifugal spinning fiber forming to obtain glass state refractory fiber;
and (2.4) immersing the glassy state refractory fiber into 15wt% of hydrogen peroxide, taking out after immersing for 1h, washing and drying to obtain the modified refractory fiber.
(3) Preparing a fabric:
(3.1) opening, carding and cross lapping are carried out on the refractory fibers serving as raw materials to form a fiber mesh, and layering, needle punching forming and hot pressing setting are carried out on the fiber mesh to obtain refractory fiber base cloth;
(3.2) after uniformly mixing the dispersing agent, the silica sol, the styrene-acrylic emulsion and the water, adding Al into the mixture 2 O 3 Powder, zrO 2 Powder and TiO 2 Uniformly dispersing the powder to obtain mixed slurry;
and (3.3) coating the mixed slurry on a refractory fiber base fabric, rolling, drying, calcining at 500 ℃ for 1.5h, and cooling to obtain the high-strength high-temperature-resistant fabric.
Comparative example 1
This comparative example differs from example 3 in that the refractory fiber was not subjected to surface oxidation treatment, i.e., step (2.4). The remaining raw materials and preparation method were the same as in example 3.
Comparative example 2
This comparative example differs from example 3 in that in step (2.1), 7 parts of SO are added 2 The oxidation catalyst @ carbon @ barium sulfate particles were changed to carbon powder 3.5 parts and barium sulfate 2.3 parts. The remaining raw materials and preparation method were the same as in example 3.
Comparative example 3
This comparative example differs from example 3 in that in step (2.1), 7 parts of SO are added 2 Oxidation catalyst @ carbon @ barium sulfate particles to SO 2 1.2 parts of oxidation catalyst, 3.5 parts of carbon powder and 2.3 parts of barium sulfate. The remaining raw materials and preparation method were the same as in example 3.
Comparative example 4
This comparative example differs from example 3 in that in step (2.1), 7 parts of SO are added 2 Oxidation catalyst @ carbon @ barium sulfate particles to SO 2 Oxidation catalyst @ carbon particles 4.7 parts and barium sulfate 2.3 parts. The remaining raw materials and preparation method were the same as in example 3.
Comparative example 5
This comparative example differs from example 3 in that in step (2.1) the duration is extended from 3h to 5h and SO is obtained 2 In the oxidation catalyst @ carbon @ barium sulfate particles, SO 2 Diameter of oxidation catalyst layer0.5-2.5 μm, the carbon layer 1.04-1.81 μm and the barium sulfate layer 0.27-0.36 μm. The remaining raw materials and preparation method were the same as in example 3.
Comparative example 6
This comparative example differs from example 3 in that in step (2.1), the duration is reduced from 3h to 25h, and the SO obtained 2 In the oxidation catalyst @ carbon @ barium sulfate particles, SO 2 The diameter of the oxidation catalyst layer is 0.5-2.5 μm, the thickness of the carbon layer is 0.48-0.93 μm, and the thickness of the barium sulfate layer is 0.38-0.49 μm. The remaining raw materials and preparation method were the same as in example 3.
The glass refractory fibers obtained in the steps (2.3) of examples 1 to 3 and comparative examples 1 to 6 were subjected to the maximum use temperature, the long-term use temperature and the breaking strength test. The judgment basis of the highest service temperature is as follows: the refractory fiber is kept at the temperature for 24 hours, and the heating permanent line change is not more than 4 percent; the judgment basis of the long-term use temperature is as follows: the refractory fibers were held at this temperature for 24 hours with a heating permanent line change of no more than 3%. The test results are shown in table 1.
The fabrics of examples 1-3 and comparative examples 1-6 were tested for tensile strength and heat resistance. The test method of the heat resistance performance comprises the following steps: and (3) treating the fabric at the high temperature of 1200 ℃ for 24h, and detecting the change of the heating permanent line.
TABLE 1
Analysis of the above table data shows that:
(1) Compared with example 3, comparative example 1 does not carry out surface oxidation modification on the glass-state refractory fiber, and the tensile strength of the fabric is obviously reduced, because hydroxyl can be introduced to the surface of the refractory fiber by carrying out surface oxidation treatment on the glass-state refractory fiber, so that the combination between the refractory fiber and silica sol and styrene-acrylic emulsion is facilitated, the combination strength of inorganic powder on the refractory fiber base fabric is improved, and the mechanical property of the high-temperature resistant fabric is improved.
(2) Compared withIn example 3, in comparative example 2 in which the core-shell structure defoaming agent was replaced with barium sulfate and carbon powder, the high temperature resistance and strength of the refractory fiber were significantly reduced due to SO formed by the reaction of carbon and barium sulfate 2 Has poor solubility in molten liquid, and part of undischarged SO 2 Will remain in the refractory fibers in the form of bubbles; while using SO 2 The oxidation catalyst @ carbon @ barium sulfate particles can ensure SO to be generated at the later stage of melting of the refractory fiber raw material 2 Oxidized to more soluble SO 3 Reduce the residual of sulfur-containing bubbles and prevent SO in the early stage 2 And the oxidation promotes the discharge of bubbles in the molten liquid, thereby reducing the bubble residue in the refractory fiber and improving the mechanical property and the high temperature resistance of the high temperature resistant fabric.
(3) Comparative example 3, compared to example 3, the core-shell structure defoamer was replaced with barium sulfate, carbon powder and SO 2 The oxidation catalyst, the refractory fiber of which has a significantly reduced resistance to high temperatures and strength, is due to SO being present in the molten precursor 2 Oxidation catalyst and SO 2 Contact to convert it to SO 3 The latter has better solubility in the molten liquid, which is not beneficial to driving other bubbles to be discharged.
(4) Comparative example 4 in comparison with example 3, the core-shell structure defoamer was replaced with barium sulfate and carbon-coated SO 2 The oxidation catalyst, whose refractory fibers have a significantly reduced resistance to high temperatures and strength, is obtained when barium sulfate and carbon are coated with SO 2 When the oxidation catalyst is dispersedly added, the contact reaction between the oxidation catalyst and the catalyst is not facilitated, SO the discharge of other bubbles in the molten liquid is not facilitated, and the barium sulfate can be decomposed at high temperature, SO the reaction amount of carbon can be reduced, and the SO at the later stage of melting is influenced 2 With SO 2 Contact of the oxidation catalyst, in turn, results in an increase in residual sulfur-containing gas bubbles.
(5) In comparison with example 3, in comparative example 5, the thickness of the carbon layer in the core-shell structure defoamer is increased, and the high temperature resistance and the strength of the refractory fiber are significantly reduced, because when the thickness of the carbon layer is too large relative to the thickness of the barium sulfate layer, after the barium sulfate is completely reacted, pores are not formed or are too small in the carbon layer, so that the molten liquid is causedResidual SO in 2 Is difficult to be oxidized into SO 3 Resulting in the presence of more sulfur-containing bubbles in the refractory fibers.
(6) Comparative example 6, in which the thickness of the carbon layer in the core-shell structure defoaming agent was reduced compared to example 3, significantly reduced the high temperature resistance and strength of the refractory fiber, because when the thickness of the carbon layer was too small relative to the barium sulfate layer, the carbon layer was caused to have pores too early, which was not favorable for discharging other bubbles in the melt.
Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that the embodiments may be modified or changed without departing from the spirit of the present invention within the scope of the appended claims.
Claims (9)
1. The high-strength high-temperature-resistant fabric is characterized by comprising the following raw materials in parts by weight: 100 parts of modified refractory fiber, 25-35 parts of silica sol, 4-6 parts of styrene-acrylic emulsion and Al 2 O 3 3.5-5.5 parts of powder and ZrO 2 4.5 to 6.5 portions of powder and TiO 2 2.5-4.0 parts of powder, 0-0.15 part of dispersant and 150-200 parts of water; the modified refractory fiber is a glass state refractory fiber with the surface subjected to oxidation treatment; the glass state refractory fiber adopts SO 2 The oxidation catalyst @ carbon @ barium sulfate particles are prepared as a defoaming agent; the SO 2 The preparation method of the oxidation catalyst @ carbon @ barium sulfate particle comprises the following steps of:
(1.1) dispersing graphite powder into a nitric acid solution of 12.0-14.5mol/L, stirring for 1-1.5h at 50-55 ℃, and performing centrifugal separation and drying to obtain graphite powder with activated surfaces; dissolving thiourea and ferric chloride in alcohol, adding graphite powder with activated surface, dispersing uniformly, stirring for 2-5h, evaporating to dryness, calcining at 800-900 deg.C for 3-5h in nitrogen atmosphere, and grinding to obtain SO 2 An oxidation catalyst;
(1.2) adding SO 2 Placing the oxidation catalyst in a closed container, keeping the temperature at 700-900 ℃, introducing nitrogen and acetylene for 3-4h to obtain SO 2 Oxidation catalyst @ carbon particles;
(1.3) adding SO 2 Dispersing the oxidation catalyst @ carbon particles into a barium chloride solution, stirring for 30-50min, dropwise adding a sodium sulfate solution, completing dropwise adding within 60-80min, and separating a product to obtain SO 2 Oxidation catalyst @ carbon @ barium sulfate particles.
2. The high strength, high temperature resistant fabric of claim 1 wherein the modified fire resistant fiber is prepared by a process comprising the steps of: and immersing the glass state refractory fiber into hydrogen peroxide, taking out after immersion, washing and drying to obtain the modified refractory fiber.
3. The high-strength high-temperature-resistant fabric as claimed in claim 2, wherein the concentration of the hydrogen peroxide is 15-25wt%.
4. The high strength, high temperature resistant fabric of claim 2 wherein the soaking time is from 0.5 to 1 hour.
5. A high strength, high temperature resistant fabric as claimed in claim 1, wherein the silica sol has a silica content of 25 to 35wt% and a silica particle size of 50 to 80nm.
6. The high strength, high temperature resistant fabric of claim 1 wherein the Al is 2 O 3 Powder of ZrO 2 Powder and TiO 2 The particle size of the powder is 50-100nm.
7. The high strength, high temperature resistant fabric of claim 1 or 2, wherein the SO is 2 In the oxidation catalyst @ carbon @ barium sulfate particles, the thickness of the carbon layer is 0.5 to 1.5 μm, and the thickness of the barium sulfate layer is 0.3 to 0.5 μm.
8. The high strength, high temperature resistant fabric of claim 1, wherein in step (1.3), the concentration of the barium chloride solution is 0.02-0.04mol/L; the concentration of the sodium sulfate solution is0.1-0.2mol/L; the SO 2 The mass-to-volume ratio of the oxidation catalyst @ carbon particles to the barium chloride solution to the sodium sulfate solution is 1g.
9. A method of making a high strength, high temperature resistant fabric as defined in any one of claims 1 to 8, comprising the steps of:
s1: taking refractory fibers as raw materials, opening, carding and cross lapping to form a fiber web, and performing layering, needle punching forming and hot pressing forming on the fiber web to obtain refractory fiber base cloth;
s2: uniformly mixing a dispersing agent, silica sol, styrene-acrylic emulsion and water, and adding Al into the mixture 2 O 3 Powder, zrO 2 Powder and TiO 2 Uniformly dispersing the powder to obtain mixed slurry;
s3: and coating the mixed slurry on refractory fiber base cloth, rolling, drying and calcining, and cooling to obtain the high-strength high-temperature-resistant fabric.
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