CN115246745A - High-temperature-resistant composite component aerogel material and preparation method thereof - Google Patents
High-temperature-resistant composite component aerogel material and preparation method thereof Download PDFInfo
- Publication number
- CN115246745A CN115246745A CN202210832914.9A CN202210832914A CN115246745A CN 115246745 A CN115246745 A CN 115246745A CN 202210832914 A CN202210832914 A CN 202210832914A CN 115246745 A CN115246745 A CN 115246745A
- Authority
- CN
- China
- Prior art keywords
- temperature
- aerogel material
- treatment
- carrying
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004964 aerogel Substances 0.000 title claims abstract description 109
- 239000000463 material Substances 0.000 title claims abstract description 93
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 55
- 239000000243 solution Substances 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 32
- 239000011259 mixed solution Substances 0.000 claims abstract description 17
- 239000002243 precursor Substances 0.000 claims abstract description 14
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000032683 aging Effects 0.000 claims abstract description 12
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 11
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 5
- 238000000197 pyrolysis Methods 0.000 claims abstract description 4
- 239000002070 nanowire Substances 0.000 claims description 56
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000000352 supercritical drying Methods 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 239000011858 nanopowder Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 10
- 230000008021 deposition Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000001294 propane Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003929 acidic solution Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 238000005470 impregnation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 3
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000009210 therapy by ultrasound Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000002159 nanocrystal Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000001338 self-assembly Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000005019 vapor deposition process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/624—Sol-gel processing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5057—Carbides
- C04B41/5059—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/522—Oxidic
- C04B2235/5224—Alumina or aluminates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/616—Liquid infiltration of green bodies or pre-forms
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6583—Oxygen containing atmosphere, e.g. with changing oxygen pressures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
The invention relates to a high-temperature-resistant composite component aerogel material and a preparation method thereof. The method comprises the following steps: preparing a nano oxide dispersion liquid; uniformly mixing the oxide dispersion liquid and the adsorbent through high-speed shearing stirring and ultrasonic treatment to obtain a mixed solution; putting the solution in a closed container for high-temperature hydrothermal reaction to obtain a semisolid gel block; and then carrying out low-density silica sol precursor dipping treatment, aging and drying, then carrying out a heat treatment process, and then carrying out a chemical vapor deposition process and carrying out pyrolysis to prepare the high-temperature-resistant composite component aerogel material. The preparation method can obtain the high-temperature-resistant composite component aerogel material with the temperature resistance of more than 1600 ℃ and high toughness.
Description
Technical Field
The invention relates to the technical field of aerogel preparation, in particular to a high-temperature-resistant composite component aerogel material and a preparation method thereof.
Background
The nano porous aerogel material is a gel material with a dispersion medium of gas, is a nano porous solid material with a network structure formed by mutually accumulating colloidal particles or high polymer molecules, and the size of pores in the material is in the order of nanometers. The porosity is as high as 80-99.8%, the typical size of the pores is 1-100 nm, and the specific surface area is 200-1000 m 2 A density of as low as 3kg/m 3 The room temperature thermal conductivity can be as low as 0.012W/m.k. Due to the characteristics, the aerogel material has wide application potential in the aspects of thermal, acoustic, optical, microelectronic and particle detection. Currently, the widest field of application of aerogels is still the field of thermal insulation, since the unique nanostructure of aerogels can effectively reduce convection conduction, solid phase conduction and thermal radiation.
Most of traditional aerogel materials are pearl necklace-shaped structures formed by accumulating nano particles, the aerogel materials with the structures are brittle, and line reinforcement is needed in practical application to achieve structure reinforcement. The structural strength of the aerogel can be effectively improved by adopting a line reinforcing mode, however, the existing RTM (resin transfer molding) process for pressing and injecting glue has requirements on the thickness and the shape of the material, and the problem of internal defects often exists in the material with large size and large thickness. The nanowire aerogel is a novel aerogel material, nanowires are used as basic units, and a three-dimensional network structure with a high specific surface area can be obtained by mutually lapping and winding. Compared with the traditional pearl necklace-shaped aerogel material, the nanowire aerogel has the advantages that the structural strength is improved, the process complexity is reduced, and the problem of powder falling of the traditional aerogel material can be solved. In addition, the three-dimensional network framework of the material has good toughness, can be machined in various shapes and with high precision, and the material is not limited by thickness, size and shape.
While the preparation method of oxide nanowires or nanowires often relies on solvothermal or electrospinning, the prepared nanowires or nanowire components often are amorphous oxides. This means that they undergo a crystal transformation at a temperature, typically above 1000 deg.f; the crystal transformation process is accompanied by structural collapse or agglomeration, and the microstructure of the aerogel is influenced. With the development of aircrafts, higher requirements are provided for the temperature resistance of heat insulation materials, and the temperature resistance of the existing materials cannot meet the requirements, so that the aerogel materials with higher temperature resistance level (more than or equal to 1600 ℃) need to be prepared.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a composite component aerogel material with high toughness and high temperature resistance and a preparation method thereof.
In the invention, the steps of micron-scale wire in-situ growth gel, low-density silica sol precursor doping and chemical vapor carbon deposition are designed, and the aluminum oxide nanowire is converted into a more temperature-resistant alpha phase under the condition of outer layer coating through a heat treatment process, and an outer shell layer is converted into a more temperature-resistant silicon carbide phase. By utilizing the high strength and toughness and high-temperature components of the core-shell structure nanowire, the preparation method can realize the preparation of the aerogel material with the temperature resistance of more than 1600 ℃.
The invention provides a preparation method of a high-temperature-resistant composite component aerogel material with temperature resistance of more than 1600 ℃ and high toughness in a first aspect, which comprises the following steps:
(1) Mixing the alumina nano powder and the acid solution in deionized water to obtain a mixed solution;
(2) Placing the mixed solution in a closed container for hydrothermal reaction to obtain a semisolid gel block;
(3) Placing the gel block in a low-density silica sol precursor solution for dipping treatment, sealing the dipped gel block, and performing aging treatment;
(4) Carrying out a solvent replacement process and a supercritical drying step on the gel block after the aging treatment to prepare a nanowire composite aerogel material;
(5) Carrying out heat treatment on the prepared nanowire composite aerogel material;
(6) Carrying out chemical vapor deposition treatment on the nanowire composite aerogel material after the heat treatment;
(7) And (3) carrying out high-temperature pyrolysis on the nanowire composite aerogel material subjected to the chemical vapor deposition treatment to obtain the high-temperature-resistant composite component aerogel material.
Preferably, in the step (1), the alumina nano powder and the acidic solution are mixed in deionized water, and a mixed solution is obtained by stirring and ultrasonic processing.
Preferably, the specific steps of step (1) are: dissolving 10-100nm diameter alumina nano powder in water, adding 0.1-30mmol/L sulfuric acid solution (wherein the total solution is the solution formed by alumina nano powder, water and sulfuric acid) accounting for 1% of the total solution mass, stirring and ultrasonically processing to obtain mixed solution, adding 2-10 μm diameter and 3-5mm length fiber loose cotton, and dispersing in a high-speed dispersion machine at 1000-8000r/min speed for 5-120min.
Preferably, the step (2) is to put the mixed solution into a closed container to carry out hydrothermal reaction for 1-48h at 150-300 ℃ to obtain semisolid gel blocks.
Preferably, the specific steps of step (2) are: the reaction needs to be carried out under fully closed conditions, and the material of the container needs to be a polymer material which does not react with the system.
Preferably, the gel block is placed in a low-density silica sol precursor solution in the step (3) and soaked for 6-72h, and then the block body is placed in a container and aged for 2-48h in an oven at 90 ℃ after being sealed.
Preferably, the specific steps of step (3) are: and (3) placing the gel block obtained in the step (2) into a prepared low-density silica sol precursor solution (with solid content of 2-10%) to be soaked for 6-72h, then adding 0.5-2mol/L ammonium fluoride solution as a catalyst according to the proportion of 100.
Preferably, the specific steps of step (4) are: the solvent replacement adopts ethanol as a solvent, and after 3 times of replacement is carried out according to 10 times of the volume of the gel block, the supercritical drying process of carbon dioxide is carried out. The supercritical drying temperature is 20-60 deg.C, and the pressure is 10-16Mpa.
Preferably, the step (5) is used for carrying out heat treatment on the nanowire composite aerogel material prepared in the step (4), wherein the heat treatment system is carried out in an air atmosphere, the treatment temperature is 1000-1200 ℃, and the treatment time is 0.5-2h.
Preferably, the step (6) is to perform chemical vapor deposition treatment on the nanowire composite aerogel material prepared in the step (5) under the condition of propane (flow rate of 0.2-2 m) 3 H) and argon (flow rate of 0.2-2 m) 3 H) mixed gas, the deposition time is 0-10h, and the deposition temperature is 900-1200 ℃.
Preferably, in the step (7), the nanowire composite aerogel material obtained in the step (6) is put in nitrogen (or argon-hydrogen mixed gas) to be cracked for 0.2 to 48 hours at the temperature of 1200 to 1600 ℃.
The preparation of the high-temperature-resistant composite component aerogel material is realized through the steps.
In a second aspect, the present invention provides a high temperature resistant composite component aerogel material prepared by the preparation method of the first aspect of the present invention.
Compared with the prior art, the invention at least has the following beneficial effects:
(1) Compared with the traditional pearl necklace aerogel material, the material has better mechanical strength, the microstructure is formed by mutually winding the nanowires, and the nanowires are bound through the chemical vapor deposition process, so that the structural strength of the material is effectively improved.
(2) The density of the aerogel material prepared by the invention can be as low as 0.16g/cm 3 Compared with other low-density aerogel materials with the same strength, the aerogel material has the characteristic of ultralow density.
(3) The gel process in the preparation method of the aerogel is a hydrothermal process, is different from the traditional RTM (resin transfer molding) pressing glue injection process, is not limited by the shape and size of the reinforcement, and can be used for preparing aerogel materials with any shape and thickness.
(4) In the preparation process, the aerogel material obtained from the gelling and post-treatment processes to the supercritical drying does not have any size shrinkage, the net size molding of the product can be realized, and the problems of cost and cycle increase caused by the machining process are solved.
(5) According to the invention, the post-treatment process of the gel block after the hydrothermal reaction is set, and the aim is to grow a silicon oxide layer in the nanowire gel block, wherein the silicon oxide layer can form a more temperature-resistant silicon carbide phase with carbon in the subsequent sintering process, so that the overall strength and the temperature resistance of the material are improved.
(6) Different from the preparation of the high-temperature resistant aerogel heat insulation material by a doping modification mode, the invention provides the preparation of the aerogel material with stable structure by a nanowire self-supporting mode for high-temperature resistant high-efficiency heat insulation application, and the improvement method is more feasible. The self-supporting refers to that the unique self microstructure of the material can enable the material to have certain strength without an additional support body.
(7) In the preparation process, the alumina nanowires are coated by the silicon dioxide and the carbon, and the conversion from a gamma phase to an alpha phase is completed under the physical barrier and shape fixation of the silicon dioxide and the carbon, so that the structural collapse in the crystal form conversion process is avoided. After high-temperature treatment, the composite component can form alpha alumina phase and silicon carbide phase which are more temperature-resistant, and the temperature resistance of the material can be effectively improved.
(8) The invention can adopt water phase as reaction medium, and avoids environmental pollution and waste caused by using organic solvent in the preparation process.
(9) The aerogel material prepared by the method disclosed by the invention has excellent high-temperature resistance on the premise of keeping low thermal conductivity less than 0.029W/m.K, and can realize long-term heat insulation application at 1600 ℃.
(10) The aerogel prepared by the method contains uniformly dispersed silicon carbide components, has a good radiation-resistant effect, and is beneficial to improving the heat-insulating property of the material at high temperature.
Drawings
FIG. 1 is a flow diagram of a preparation scheme of the present invention.
FIG. 2 is a schematic diagram of the structure of the aerogel prepared according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a preparation method of a high-temperature-resistant composite component aerogel material in a first aspect, the flow of which is shown in figure 1, the structure of the product obtained in each step is shown in figure 2, and the method comprises the following steps:
(1) Mixing the alumina nano powder and the acid solution in deionized water, and obtaining a mixed solution through stirring (high-speed shearing and stirring) and ultrasound.
The method comprises the following specific steps: dissolving 10-100nm diameter alumina nanometer powder in water, adding 0.1-30mmol/L sulfuric acid solution with the total solution mass of 1%, the nanometer powder mass fraction in the mixed solution is 5-20%, adding 2-10 μm diameter and 3-5mm length fiber loose cotton, and dispersing in a high speed dispersion machine at 1000-8000r/min for 5-120min.
Wherein, the alumina nano powder is used as an adsorbent, and the loose fiber is used as a reinforcement. The loose fiber is short tangent line, the length-diameter ratio of the lines is small, no obvious lap joint structure exists between the lines, and the function of the loose fiber is to toughen the nano-wire aerogel to a certain extent.
(2) And (3) putting the mixed solution into a closed container, and performing hydrothermal reaction at 150-300 ℃ for 1-48h to obtain a semisolid gel block. As shown in fig. 2, the alumina nanowire aerogel is obtained by this step.
The method comprises the following specific steps: the reaction needs to be carried out under a fully-closed condition, and the material of the container needs to ensure that the polymer material does not react with the system.
(3) And (3) placing the gel block in a low-density silica sol precursor solution for dipping treatment, soaking for 6-72h, then placing the block in a container for sealing, and aging for 2-48h in a 90 ℃ oven.
Wherein, the specific steps for carrying out the dipping treatment are as follows: and (3) placing the gel block obtained in the step (2) into a prepared low-density silica sol precursor solution (with solid content of 2-10%) for 6-72h, then adding 0.5-2mol/L ammonium fluoride solution as a catalyst according to a ratio of 100. Wherein the ammonium fluoride solution is used for promoting the condensation of the low-density silica sol precursor, so that the surface of the nanowire is uniformly coated with the silicon dioxide.
(4) And (4) carrying out a solvent replacement process and a supercritical drying step on the treated gel block obtained in the step (3) to obtain the nanowire composite aerogel material.
The method comprises the following specific steps: the solvent replacement adopts ethanol as a solvent, and after 3 times of replacement is carried out according to 10 times of the volume of the gel block, the supercritical drying process of carbon dioxide is carried out. The supercritical drying temperature is 20-60 deg.C, and the pressure is 10-16Mpa.
As shown in fig. 2, silicon coating is achieved through steps (3) and (4), and silica-amorphous alumina nanowire aerogel is obtained.
(5) And (3) carrying out heat treatment on the aerogel, wherein the treatment system is that the treatment temperature is 1000-1200 ℃ and the treatment time is 0.5-2h in an air atmosphere. As shown in fig. 2, silica-gamma alumina nanowire aerogel is obtained by this step.
(6) Subjecting the obtained aerogel to chemical vapor deposition under the condition of propane (flow rate of 0.2-2 m) 3 H) and argon (0.2-2 m) 3 H) mixed gas, the deposition time is 0-10h, and the deposition temperature is 900-1200 ℃. As shown in fig. 2, a carbon-silica-gamma alumina nanowire aerogel is obtained through this step.
(7) And (3) putting the aerogel material obtained in the step (6) into nitrogen (or argon-hydrogen mixed gas) for cracking for 0.2-48h at the temperature of 1200-1600 ℃. As shown in fig. 2, a silicon carbide-silica-alpha alumina nanowire aerogel was obtained by this step.
The invention provides a high-temperature-resistant composite component aerogel material in a second aspect, and the preparation of the high-temperature-resistant composite component aerogel material is realized through the steps.
The invention will be further illustrated by way of example, but the scope of protection is not limited to these examples.
Example 1
(1) Mixing the alumina nano powder and the acid solution in deionized water, and stirring and ultrasonically treating to obtain a mixed solution.
The method comprises the following specific steps: dissolving aluminum oxide nano powder with the diameter of 10-15nm in water, adding 10mmol/L sulfuric acid solution accounting for 1% of the total solution mass, and stirring and ultrasonically processing to obtain a mixed solution, wherein the mass fraction of the nano powder in the mixed solution is 8%. Adding loose fiber cotton with diameter of 7 μm and length of 3-5mm, and dispersing in a high-speed disperser at rotation speed of 5000r/min for 30min.
(2) Placing the mixed solution in a closed container, and performing hydrothermal reaction at 230 ℃ for 5h to obtain a semisolid gel block.
The method comprises the following specific steps: the reaction needs to be carried out under fully closed conditions, and the material of the container needs to be a polymer material which does not react with the system.
(3) And (3) placing the gel block in a low-density silica sol precursor solution, soaking for 24h, then adding a catalyst, uniformly mixing, placing the block in a container, sealing, and aging in an oven at 90 ℃ for 24h.
The method comprises the following specific steps: preparing a low-density silica sol precursor (solid content is 5%); after the gel block was completely impregnated, 1.5mol/L ammonium fluoride solution was added as a catalyst in a ratio of 100. The gel block is immersed in the solution with the liquid level passing over the gel block.
(4) Carrying out a solvent replacement process and a supercritical drying step on the treated gel block obtained in the step (3) to prepare a high-temperature-resistant composite component aerogel material;
the method comprises the following specific steps: and the solvent replacement adopts ethanol as a solvent, and after 3 times of replacement is carried out according to 10 times of the volume of the gel block, the supercritical drying process of carbon dioxide is carried out. The supercritical drying temperature is 50 deg.C, and the pressure is 14Mpa.
(5) And (3) carrying out heat treatment on the aerogel, wherein the treatment system is that the treatment temperature is 1100 ℃ and the treatment time is 0.5h under an air atmosphere.
(6) The obtained aerogel was subjected to a chemical vapor deposition treatment under the condition of propane (flow rate of 1.0 m) 3 H) and argon (1.3 m) 3 H) mixed gas, the deposition time is 2h, and the deposition temperature is 1020 ℃.
(8) And (3) putting the aerogel material obtained in the step (6) into nitrogen (or argon-hydrogen mixed gas) for cracking for 2 hours at the temperature of 1400 ℃.
The aerogel material prepared in example 1 has good structural strength, and the heat insulation performance test of the high-temperature-resistant composite component aerogel material prepared in example 1 shows that the surface of the aerogel material has no light loss, no color change and no shedding, and other performance indexes are shown in table 1.
Example 2
Example 2 is essentially the same as example 1, except that: in the preparation process of the nano dispersion liquid in the step 1, a 10mmol/L sulfuric acid solution with the total solution mass of 0.5 percent is added.
The nano aerogel material prepared in example 2 is tested, the strength is weak, the chalking phenomenon exists, and other performance indexes are shown in table 1.
Example 3
Example 3 is essentially the same as example 1, except that: in the preparation process of the nano dispersion liquid in the step 1, a sulfuric acid solution with the concentration of 10mmol/L and the mass of the total solution of 20 percent is added.
The nano aerogel material prepared in example 3 is tested, the strength is weak, the chalking phenomenon exists, and other performance indexes are shown in table 1.
Example 4
Example 4 is essentially the same as example 1, except that: and (3) preparing the nano aerogel material at the temperature of 200 ℃ in the hydrothermal reaction in the step (2).
The nano aerogel material prepared in example 4 is tested, the strength is weak, the chalking phenomenon exists, and other performance indexes are shown in table 1.
Example 5
Example 5 is essentially the same as example 1, except that: and (3) performing hydrothermal reaction for 3 hours in the step 2 to obtain the nano aerogel material.
The nano aerogel material prepared in example 5 is tested, and the aerogel is relatively weak in strength and has a chalking phenomenon, and other performance indexes are shown in table 1.
Example 6
Example 6 is essentially the same as example 1, except that: and (4) preparing the high-temperature-resistant composite component aerogel material without the step (3).
The aerogel material prepared in example 6 was tested and found to maintain structural integrity and other performance criteria as shown in table 1.
Example 7
Example 7 is essentially the same as example 1, except that: and (4) preparing the nanowire aerogel material without carrying out the solvent replacement process in the step 4.
The nanowire aerogel material prepared in example 7 was tested and found to be powdered and difficult to form, and other performance indexes are shown in table 1.
Example 8
Example 8 is essentially the same as example 1, except that: and 4, performing normal-pressure drying instead of the supercritical drying process in the step 4 to obtain the nanowire aerogel composite material.
The nanowire aerogel material prepared in example 8 was tested to have large shrinkage and high density, and other performance indexes are shown in table 1.
Example 9
Example 9 is essentially the same as example 1, except that: and (4) preparing the nanowire aerogel material without performing the heat treatment process in the step (5).
The nanowire aerogel composite prepared in example 9 was tested to have no chalking, no shrinkage and good moldability, and other performance indexes are shown in table 1.
Example 10
Example 10 is essentially the same as example 1, except that: and (4) preparing the nanowire aerogel material without carrying out the vapor deposition process in the step 6.
The nanowire aerogel composite material prepared in example 10 was tested to have no chalking, no shrinkage and good moldability, and other performance indexes are shown in table 1.
Example 11
Example 11 is essentially the same as example 1, except that: and (6) the time of the vapor deposition process in the step 6 is 24 hours, and the nanowire aerogel material is prepared.
The nanowire aerogel composite material prepared in example 11 was tested to have no chalking, no shrinkage and good moldability, and other performance indexes are shown in table 1.
Example 12
Example 12 is essentially the same as example 1, except that: and (4) preparing the nanowire aerogel material without carrying out the pyrolysis process of the step (7).
The nanowire aerogel composite prepared in example 12 was tested to have no chalking, no shrinkage and good moldability, and other performance indexes are shown in table 1.
Example 13
Example 13 is essentially the same as example 1, except that: and (3) adding a sulfuric acid solution which accounts for 1% of the total solution mass and is 0.1mmol/L into the reaction system in the step (1) to prepare the nanowire aerogel material.
When the nanowire aerogel composite material prepared in example 13 is tested, the material has poor pulverization and formability, and other performance indexes are shown in table 1.
Example 14
Example 14 is essentially the same as example 1, except that: and (3) soaking the gel block in the low-density silica sol precursor solution (with the solid content of 10%) for 72h to prepare the nanowire aerogel material.
The nanowire aerogel composite material prepared in example 14 was tested, and the nanowire aerogel composite material was free of chalking and good in moldability, and other performance indexes are shown in table 1.
Example 15
Example 15 is essentially the same as example 1, except that: and (3) adding 2mol/L ammonium fluoride solution as a catalyst into the reaction system in the step (3) to prepare the nanowire aerogel material.
The nanowire aerogel composite material prepared in example 15 was tested, and the nanowire aerogel composite material was free of chalking and good in moldability, and other performance indexes are shown in table 1.
Example 16
Example 16 is essentially the same as example 1, except that: and (5) the deposition time of the step 6 is 10 hours, and the nanowire aerogel material is prepared.
The nanowire aerogel composite material prepared in example 16 was tested, and the nanowire aerogel composite material was free of chalking and good in moldability, and other performance indexes are shown in table 1.
Comparative examples 1 to 3:
comparative examples 1, 2 were prepared according to the methods of examples 1, 2 in CN108249901a, i.e., aerogel materials were prepared by the following steps in sequence: sol preparation, nanocrystal self-assembly process, gelation and aging, solvent replacement, supercritical drying and heat treatment process.
Comparative example 3 was prepared according to the method of example 1 in CN110282958a, i.e. an aerogel material was prepared by the following steps in sequence: the preparation method comprises the following steps of preparation of the special-shaped nanocrystal dispersion liquid, a special-shaped nanocrystal self-assembly process, a gelation reaction process, an aging process, a drying process and a post-treatment process.
Table 1: performance indexes of high-temperature-resistant composite component aerogel materials prepared in various examples and high-temperature-resistant aerogel materials prepared in comparative examples
Where "-" indicates that no relevant data is available.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A preparation method of a high-temperature-resistant composite component aerogel material is characterized by comprising the following steps:
mixing the alumina nano powder and the acidic solution in deionized water to obtain a mixed solution;
placing the mixed solution in a closed container for hydrothermal reaction to obtain semisolid gel blocks;
placing the gel block in a low-density silica sol precursor solution for dipping treatment, sealing the dipped gel block, and performing aging treatment;
carrying out a solvent replacement process and a supercritical drying step on the gel block after the aging treatment to prepare a nanowire composite aerogel material;
carrying out heat treatment on the prepared nanowire composite aerogel material;
carrying out chemical vapor deposition treatment on the nanowire composite aerogel material after the heat treatment;
and (3) carrying out high-temperature cracking on the nanowire composite aerogel material subjected to chemical vapor deposition treatment to obtain the high-temperature-resistant composite component aerogel material.
2. The method of claim 1, wherein mixing the alumina nanopowder and the acidic solution in deionized water to obtain a mixed solution comprises: dissolving 10-100nm diameter alumina nano powder in deionized water, adding 0.1-30mmol/L sulfuric acid solution accounting for 1% of the total solution mass, stirring and ultrasonically treating to obtain mixed solution, adding fiber loose cotton with diameter of 2-10 μm and length of 3-5mm, and dispersing in a high-speed disperser at 1000-8000r/min for 5-120min.
3. The method according to claim 1, wherein the hydrothermal reaction is carried out in a closed container at 150-300 ℃ for 1-48h.
4. The method of claim 1, wherein the placing the gel mass in a low density silica sol precursor solution for an impregnation process comprises: and (3) placing the gel block in a low-density silica sol precursor solution for 6-72h, adding 0.5-2mol/L ammonium fluoride solution serving as a catalyst, mixing for 1-24h, and carrying out gel reaction.
5. The method according to claim 1, wherein the aging treatment is an aging treatment in an oven at 90 ℃ for 2 to 48 hours.
6. The method according to claim 1, wherein the gel block after aging treatment is subjected to a solvent replacement process and a supercritical drying process, wherein the solvent replacement is performed 3 times by replacing the gel block by 10 times in volume using ethanol as a solvent, and then the carbon dioxide supercritical drying process is performed; the supercritical drying temperature is 20-60 deg.C, and the pressure is 10-16Mpa.
7. The method according to claim 1, wherein the heat treatment is carried out under an air atmosphere at a treatment temperature of 1000 to 1200 ℃ for a treatment time of 0.5 to 2 hours.
8. The method according to claim 1, wherein the chemical vapor deposition treatment adopts a mixed gas of propane and argon, the deposition time is 0-10h, and the deposition temperature is 900-1200 ℃.
9. The method of claim 1, wherein the pyrolysis is carried out in nitrogen, argon, or a mixture of argon and hydrogen for 0.2 to 48 hours at 1200 to 1600 ℃.
10. A high temperature resistant composite component aerogel material prepared according to the method of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210832914.9A CN115246745B (en) | 2022-07-14 | 2022-07-14 | High-temperature-resistant composite component aerogel material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210832914.9A CN115246745B (en) | 2022-07-14 | 2022-07-14 | High-temperature-resistant composite component aerogel material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115246745A true CN115246745A (en) | 2022-10-28 |
| CN115246745B CN115246745B (en) | 2023-04-11 |
Family
ID=83700264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210832914.9A Active CN115246745B (en) | 2022-07-14 | 2022-07-14 | High-temperature-resistant composite component aerogel material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115246745B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2339848A1 (en) * | 1972-08-08 | 1974-02-21 | Magnesium Elektron Ltd | Process for the production of porous, cemented masses from inorganic fibers |
| CN101538049A (en) * | 2008-12-29 | 2009-09-23 | 太原理工大学 | Method for preparing multi-level porous channel beta zeolite |
| CN107032816A (en) * | 2017-05-10 | 2017-08-11 | 西北工业大学 | A kind of silicon carbide nanometer line enhancing C/C SiC ZrB2The preparation method of ceramic matric composite |
| CN108047849A (en) * | 2017-12-21 | 2018-05-18 | 金华联创塑粉科技有限公司 | A kind of low formaldehyde environment-friendly type coating and preparation method thereof |
| US10343131B1 (en) * | 2013-08-16 | 2019-07-09 | The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration | High temperature, hydrophobic, flexible aerogel composite and method of making same |
| CN110128158A (en) * | 2019-04-22 | 2019-08-16 | 湖南远辉复合材料有限公司 | Solar heat protection/heat-insulated/carrying integrated ceramic base light sandwich structure and preparation method thereof |
| CN110282958A (en) * | 2019-07-12 | 2019-09-27 | 航天特种材料及工艺技术研究所 | Nanocrystalline aerogel material of a kind of high temperature resistant abnormity and preparation method thereof |
| CN110317072A (en) * | 2019-05-28 | 2019-10-11 | 阜阳创启工艺品有限公司 | A kind of preparation method and application method of magnetism anti-bacteria ceramic polymer precursor |
| WO2020173911A1 (en) * | 2019-02-25 | 2020-09-03 | Henkel Ag & Co. Kgaa | Composite aerogel material |
| CN111848205A (en) * | 2020-07-13 | 2020-10-30 | 航天特种材料及工艺技术研究所 | Method for preparing high-temperature-resistant aerogel heat-insulating material by normal-pressure drying |
| CN111925194A (en) * | 2020-08-18 | 2020-11-13 | 航天特种材料及工艺技术研究所 | High-temperature-resistant high-performance aerogel composite material and preparation method thereof |
| CN112592150A (en) * | 2021-03-04 | 2021-04-02 | 中国人民解放军国防科技大学 | Preparation method of alumina-silica aerogel heat-insulation composite material |
| CN112830760A (en) * | 2021-01-20 | 2021-05-25 | 湖南荣岚智能科技有限公司 | Heat-insulating and high-temperature-resistant aerogel gradient composite material and preparation method thereof |
| WO2021142464A2 (en) * | 2020-01-11 | 2021-07-15 | The Research Foundation For The State University Of New York | Ceramic foam-fiber composites, methods of making same, and uses thereof |
| US20210309527A1 (en) * | 2020-04-06 | 2021-10-07 | Aspen Aerogels, Inc. | Aerogel compositions and methods |
| CN113831103A (en) * | 2021-09-30 | 2021-12-24 | 巩义市泛锐熠辉复合材料有限公司 | Preparation method of high-temperature-resistant alumina-silica aerogel composite material |
| CN113845692A (en) * | 2021-11-19 | 2021-12-28 | 航天特种材料及工艺技术研究所 | Polycarbosilane/phenolic aldehyde dual-system network structure aerogel and composite material and preparation method thereof |
| RU2766506C1 (en) * | 2021-04-08 | 2022-03-15 | федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет» | Method of producing aluminium oxide-based supports for catalysts of oil refining processes |
| CN114349526A (en) * | 2021-11-22 | 2022-04-15 | 东华大学 | Ceramic nanofiber aerogel with zigzag continuous phase structure and preparation method thereof |
-
2022
- 2022-07-14 CN CN202210832914.9A patent/CN115246745B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2339848A1 (en) * | 1972-08-08 | 1974-02-21 | Magnesium Elektron Ltd | Process for the production of porous, cemented masses from inorganic fibers |
| CN101538049A (en) * | 2008-12-29 | 2009-09-23 | 太原理工大学 | Method for preparing multi-level porous channel beta zeolite |
| US10343131B1 (en) * | 2013-08-16 | 2019-07-09 | The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration | High temperature, hydrophobic, flexible aerogel composite and method of making same |
| CN107032816A (en) * | 2017-05-10 | 2017-08-11 | 西北工业大学 | A kind of silicon carbide nanometer line enhancing C/C SiC ZrB2The preparation method of ceramic matric composite |
| CN108047849A (en) * | 2017-12-21 | 2018-05-18 | 金华联创塑粉科技有限公司 | A kind of low formaldehyde environment-friendly type coating and preparation method thereof |
| WO2020173911A1 (en) * | 2019-02-25 | 2020-09-03 | Henkel Ag & Co. Kgaa | Composite aerogel material |
| CN110128158A (en) * | 2019-04-22 | 2019-08-16 | 湖南远辉复合材料有限公司 | Solar heat protection/heat-insulated/carrying integrated ceramic base light sandwich structure and preparation method thereof |
| CN110317072A (en) * | 2019-05-28 | 2019-10-11 | 阜阳创启工艺品有限公司 | A kind of preparation method and application method of magnetism anti-bacteria ceramic polymer precursor |
| CN110282958A (en) * | 2019-07-12 | 2019-09-27 | 航天特种材料及工艺技术研究所 | Nanocrystalline aerogel material of a kind of high temperature resistant abnormity and preparation method thereof |
| WO2021142464A2 (en) * | 2020-01-11 | 2021-07-15 | The Research Foundation For The State University Of New York | Ceramic foam-fiber composites, methods of making same, and uses thereof |
| US20210309527A1 (en) * | 2020-04-06 | 2021-10-07 | Aspen Aerogels, Inc. | Aerogel compositions and methods |
| CN111848205A (en) * | 2020-07-13 | 2020-10-30 | 航天特种材料及工艺技术研究所 | Method for preparing high-temperature-resistant aerogel heat-insulating material by normal-pressure drying |
| CN111925194A (en) * | 2020-08-18 | 2020-11-13 | 航天特种材料及工艺技术研究所 | High-temperature-resistant high-performance aerogel composite material and preparation method thereof |
| CN112830760A (en) * | 2021-01-20 | 2021-05-25 | 湖南荣岚智能科技有限公司 | Heat-insulating and high-temperature-resistant aerogel gradient composite material and preparation method thereof |
| CN112592150A (en) * | 2021-03-04 | 2021-04-02 | 中国人民解放军国防科技大学 | Preparation method of alumina-silica aerogel heat-insulation composite material |
| RU2766506C1 (en) * | 2021-04-08 | 2022-03-15 | федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет» | Method of producing aluminium oxide-based supports for catalysts of oil refining processes |
| CN113831103A (en) * | 2021-09-30 | 2021-12-24 | 巩义市泛锐熠辉复合材料有限公司 | Preparation method of high-temperature-resistant alumina-silica aerogel composite material |
| CN113845692A (en) * | 2021-11-19 | 2021-12-28 | 航天特种材料及工艺技术研究所 | Polycarbosilane/phenolic aldehyde dual-system network structure aerogel and composite material and preparation method thereof |
| CN114349526A (en) * | 2021-11-22 | 2022-04-15 | 东华大学 | Ceramic nanofiber aerogel with zigzag continuous phase structure and preparation method thereof |
Non-Patent Citations (6)
| Title |
|---|
| ENSHUANG ZHANG等: "insulating and robust ceramic nanorod aerogels with high-temperature resistance over 1400℃", 《ACS APLLIED MATERIALS & INTERFACES》 * |
| XIE M.X.等: "in-situ synthesis and textural evolution of the novel carbonaceous sic/mullite aerogel via polymer-derived ceramics route", 《CERAMICS INTERNATIONAL》 * |
| XU L.等: "infrared-opacified al2o3-sio2 aerogel composite reinforced by sic coated mullite fibers for thermal insulations" * |
| 张恩爽 等: "结构强健的Al2O3-SiO2气凝胶的制备及可重复使用性能", 《高等学校化学学报》 * |
| 王敏朵;曾双亲;贾燕子;杨清河;: "制备方法对含硅氧化铝载体性质的影响" * |
| 魏鹏湾等: "二氧化硅气凝胶复合隔热材料研究进展", 《无机盐工业》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115246745B (en) | 2023-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110282958B (en) | High-temperature-resistant special-shaped nanocrystalline aerogel material and preparation method thereof | |
| CN111925194B (en) | High-temperature-resistant high-performance aerogel composite material and preparation method thereof | |
| CN112661482A (en) | Fiber composite aerogel material and preparation method and application thereof | |
| CN108249901B (en) | Preparation method of high-temperature-resistant aerogel material | |
| CN111943704B (en) | Reusable high-temperature-resistant nanocrystalline aerogel material and preparation method thereof | |
| CN108097064B (en) | Method for preparing mesoporous ceramic membrane based on two-dimensional material | |
| CN113663611B (en) | High-temperature-resistant composite nanofiber aerogel material and preparation method thereof | |
| CN111252789B (en) | High-temperature-resistant alumina nanocrystalline aerogel material and preparation method thereof | |
| CN113831581B (en) | High-elasticity anti-radiation nanofiber aerogel material and preparation method thereof | |
| CN114853453B (en) | Hydrophobic ceramic aerogel material with micro-nano structure and preparation method thereof | |
| CN113502599A (en) | Flexible Y2Mo3O12/Al2O3High-temperature heat-insulation nanofiber membrane and preparation method thereof | |
| CN114288953B (en) | Preparation method and application of super-hydrophobic MXene-based/cellulose composite aerogel | |
| CN111943654B (en) | High-temperature-resistant and radiation-resistant aerogel composite material and preparation method thereof | |
| CN113648940B (en) | Ultra-light high-elasticity anti-radiation nanofiber aerogel material and preparation method thereof | |
| CN109095883A (en) | A kind of fiber reinforcement aluminium oxide-silicon oxide binary aerogel composite material and preparation method | |
| CN115246745B (en) | High-temperature-resistant composite component aerogel material and preparation method thereof | |
| CN114804816B (en) | High-temperature-resistant high-toughness nanowire aerogel material and preparation method thereof | |
| CN114870757B (en) | High-temperature-resistant micro-nanofiber composite aerogel material and preparation method thereof | |
| CN113502597B (en) | Flexible high-infrared-reflectivity yttrium manganate nanofiber membrane and preparation method thereof | |
| CN109629227A (en) | A kind of preparation method of fiber base carbon nanotube conducting material | |
| CN114920539B (en) | High-toughness radiation-resistant aerogel heat-insulating material and preparation method thereof | |
| CN114804199B (en) | Titanium dioxide-alumina aerogel material and preparation method thereof | |
| CN109320195B (en) | Al2O3-SiO2Method for preparing composite material | |
| Qian et al. | Preparation of biomorphic TiO2 ceramics from rattan templates | |
| CN105032458B (en) | A kind of method for preparing the modified cordierite in surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |