CN109369129A - Fiber reinforcement aluminium oxide aerogel heat-proof material and preparation method thereof - Google Patents
Fiber reinforcement aluminium oxide aerogel heat-proof material and preparation method thereof Download PDFInfo
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- CN109369129A CN109369129A CN201811313052.9A CN201811313052A CN109369129A CN 109369129 A CN109369129 A CN 109369129A CN 201811313052 A CN201811313052 A CN 201811313052A CN 109369129 A CN109369129 A CN 109369129A
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- heat
- composite material
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention provides a kind of fiber reinforcement aluminium oxide aerogel heat-proof composite materials and preparation method thereof.Fiber, inorganic binder, lyophobic alumina airsetting rubber powder or hydrophobic gaseous oxidation aluminium powder, opacifier are dispersed in the deionized water containing surfactant and dispersing agent, it stirs evenly, it is subsequently poured into mold, dries at high temperature, form aluminium oxide aerogel heat-proof material after demoulding.The fiber reinforcement aluminium oxide aerogel heat-proof composite material of above-mentioned preparation method, simple process and low cost, convenient formation, preparation can keep the nanoaperture structure of aeroge, and thermal conductivity is low, can be used as high temperature insulating material use.
Description
Technical field
The invention discloses a kind of fiber reinforcement aluminium oxide aerogel heat-proof materials and preparation method thereof, belong to inorganic material
Field.
Background technique
The outstanding feature that aerogel material has lightweight, thermal conductivity low, as high-performance insulation material, in building, pipeline
The fields such as heat preservation, Thermal Equipment heat preservation, aerospace have broad application prospects.With in world wide the energy it is increasingly tight
It lacks, energy-efficient importance is higher and higher, and the aeroge with excellent thermal insulation performance becomes the hot spot neck of high efficiency heat insulation material research
One of domain.Currently, common aeroge type has SiO2、Al2O3、ZrO2, C etc., generally form fiber with various fibre reinforcements
Enhance aerogel composite to use.
For many years, aeroge is always using the most mature collosol and gel combination supercritical drying process or constant pressure and dry
Preparation, has there is the preparation process of the aeroge of many document reports maturation.The airsetting prepared using supercritical drying process
Glue has nanoaperture structure abundant, is conducive to the thermal conductivity for reducing material, but shortcoming is at high cost.Although normal pressure is dry
Drying method reduces production cost, but is needed in drying process using a large amount of organic solvents, and environment is unfriendly.
The present invention provides a kind of fiber reinforcement aluminium oxide aerogel heat-proof material based on slurry curing moulding process and
Its preparation process has the advantages that simple process, easily molded, at low cost, has potential application prospect.
Summary of the invention
In order to solve the problems, such as above-mentioned technology, the present invention provides a kind of fiber reinforcement aluminium oxide aerogel heat-proofs
Composite material and preparation method.By fiber, inorganic binder, lyophobic alumina airsetting rubber powder or hydrophobic gaseous oxidation aluminium powder,
Opacifier is dispersed in the deionized water containing surfactant and dispersing agent, is stirred evenly, is subsequently poured into mold, in high temperature
Lower drying forms aluminium oxide aerogel heat-proof material after demoulding.Above-mentioned preparation method, simple process and low cost, convenient formation,
The fiber reinforcement aluminium oxide aerogel heat-proof composite material of preparation can keep the nanoaperture structure of aeroge, and thermal conductivity is low, can
It is used as high temperature insulating material.
It is an object of the present invention to provide a kind of fiber reinforcement aluminium oxide aerogel heat-proof composite materials.
It is another object of the present invention to provide a kind of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite materials
Preparation method.
The purpose of the present invention is what is be achieved through the following technical solutions:
The present invention provides a kind of fiber reinforcement aluminium oxide aerogel heat-proof composite material, which includes hydrophobic silica
Aluminium aeroge, fiber, opacifier, aluminium oxide hollow beads and inorganic binder；Wherein, lyophobic alumina aeroge, fiber, oxygen
The mass ratio for changing aluminium hollow beads, inorganic binder and opacifier is 1:(0.6-3.0): (0.01~0.40): (0.2~4):
(0.05~0.40).
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, wherein also including surfactant
And dispersing agent；The surfactant and dispersing agent can remove at high temperature.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, wherein also packet hydrophobic silica silicon
Airsetting rubber powder.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, the fiber include that quartz is fine
At least one of dimension, alumina fibre and mullite fiber.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, the opacifier include oxidation
At least one of titanium, zirconium oxide, zirconium silicate and silicon carbide.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, the inorganic binder include
Gypsum and/or aluminous cement.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, the dispersing agent are ammonium hydroxide.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, the surfactant include
Anionic surfactant, cationic surfactant and block copolymer surfactant.
Fiber reinforcement aluminium oxide aerogel heat-proof composite material according to the present invention, the surfactant are selected from
Hexadecyltrimethylammonium chloride, dodecyl sodium sulfate or polyoxyethylene-poly-oxypropylene polyoxyethylene (PEO-PPO-PEO)
At least one of block copolymer.
The present invention provides a kind of preparation method of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite material, packets
Include following steps:
(1) it disperses the fiber, surfactant and dispersing agent in deionized water, obtains liquid mixture；
(2) the hydrophobic silica aluminium airsetting rubber powder, opacifier, inorganic binder and aluminium oxide hollow beads are mixed
Uniformly, powder mixture is obtained；
(3) it disperses the powder mixture in step (2) in the liquid mixture of step (1), stirring is uniform to being formed
Slurry；
(4) slurry of step (3) is poured into die for molding, then in drying, solidification, obtains the fiber reinforcement oxidation
Aluminium aerogel heat-proof composite material.
In the preparation method of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite material, fibre described in step (1)
Dimension, surfactant, dispersing agent and deionized water mass ratio are as follows: 1:(0.05~0.40): (0.02~0.25): (6~15).
In the preparation method of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite material, dredged described in step (2)
Water alumina aerogels powder, aluminium oxide hollow beads, inorganic binder and opacifier mass ratio are as follows: 1:(0.01~0.40):
(0.2~4): (0.05~0.40).
In the preparation method of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite material, powder described in step (3)
The mass ratio of body mixture and liquid mixture are as follows: 1:(3.5~8.0).
In the preparation method of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite material, step further includes dredging in (2)
The mass ratio of aqueous silica aerogel powder, the lyophobic alumina airsetting rubber powder and hydrophobic silica silica aerogel powder is 1:
(0.01~2).
In the preparation method of above-mentioned fiber reinforcement aluminium oxide aerogel heat-proof composite material, dried described in step (4)
Temperature be 80~150 DEG C, the time be 6~for 24 hours.
In some other embodiments of the invention, the hydrophobic silica aluminium airsetting rubber powder could alternatively be thin
Aqueous gaseous oxidation aluminium powder, the hydrophobic silica silica aerogel powder could alternatively be hydrophobicity gaseous oxidation silicon powder.
The preparation method of fiber reinforcement aluminium oxide aerogel heat-proof composite material disclosed by the invention can also be used for silica
The preparation of aerogel composite, zirconia aerogels composite material has certain versatility.
Compared with prior art, the present invention has the following advantages:
(1) fiber reinforcement aluminium oxide aerogel heat-proof composite material of the invention can keep the nanoaperture knot of aeroge
Structure, thermal conductivity is low, can be used as high temperature insulating material use.
(2) of the invention by fiber, inorganic binder, lyophobic alumina airsetting rubber powder or hydrophobic gaseous oxidation aluminium powder, shading
Agent is dispersed in the deionized water containing surfactant and dispersing agent, is stirred evenly, is subsequently poured into mold, dries at high temperature
It is dry, aluminium oxide aerogel heat-proof material is formed after demoulding, preparation process is simple, at low cost, convenient formation.
Detailed description of the invention
Fig. 1 is the fiber reinforcement aluminium oxide aerogel heat-proof composite material of the embodiment of the present invention 1.
Fig. 2 fiber reinforcement aluminium oxide aerogel heat-proof material preparation process general flow chart.
Specific embodiment
In order to keep the present invention easier to understand, below in conjunction with embodiment and attached drawing, the present invention will be described in detail, these
Embodiment only serves illustrative, it is not limited to application range of the invention.
Embodiment 1
(1) 0.3g hexadecyltrimethylammonium chloride, 0.2g ammonium hydroxide and 5.0g quartz fibre are dispersed in 30.0g deionization
In water, stirring is until fiber is uniformly dispersed；
(2) 6.0g lyophobic alumina airsetting rubber powder, 0.5g Hydrophobic silica airsetting rubber powder, 1.2g aluminium oxide is hollow small
Ball, 1.5 land plasters and 2.0g silicon carbide are uniformly mixed in batch mixer；
(3) above-mentioned powder is added in the solution into (1), and is stirred in blender, until powder divides in the solution
It dissipates, and forms uniform slurry；
(4) above-mentioned slurry is poured into molding die, dries 12h in 80 DEG C of baking ovens, after demoulding, obtain fiber reinforcement gas
Gel heat-insulation composite material.
After tested, the density of above-mentioned material is 0.22g/cm3, room temperature thermal conductivity is 0.032W/mK.
Embodiment 2
(1) by 2.4g hexadecyltrimethylammonium chloride, 1.5g ammonium hydroxide and 6.0g alumina fibre be dispersed in 60.0g go from
In sub- water, stirring is until fiber is uniformly dispersed；
(2) by 4.0g lyophobic alumina airsetting rubber powder, 8.0g Hydrophobic silica airsetting rubber powder, 1.2g titanium oxide, 0.2g oxygen
Change aluminium hollow beads and 16.0 land plasters and 0.8g titanium oxide to be uniformly mixed in batch mixer；
(3) above-mentioned powder is added in the solution into (1), and is stirred in blender, until powder lot dispersing, and formed
Uniform slurry；
(4) above-mentioned slurry is poured into molding die, dries 10h in 100 DEG C of baking ovens, after demoulding, obtains fiber reinforcement
Aerogel heat-proof composite material.
After tested, the density of above-mentioned material is 0.28g/cm3, room temperature thermal conductivity is 0.035W/mK.
Embodiment 3
(1) 2.2g hexadecyltrimethylammonium chloride, 2.0g ammonium hydroxide and 15.0g mullite fiber are dispersed in 100.0g
In ionized water, stirring is until fiber is uniformly dispersed；
(2) by 15g lyophobic alumina airsetting rubber powder, 5.0g glass hollow aluminium oxide hollow beads, 16.0 land plasters and
6.0g silicon carbide is uniformly mixed in batch mixer；
(3) above-mentioned powder is added in the solution into (1), and is stirred in blender, until powder divides in the solution
It dissipates, and forms uniform slurry；
(4) above-mentioned slurry is poured into molding die, dries 15h in 85 DEG C of baking ovens, after demoulding, obtain fiber reinforcement gas
Gel heat-insulation composite material.
After tested, the density of above-mentioned material is 0.30g/cm3, room temperature thermal conductivity is 0.042W/mK.
The above, optimal specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Content that description in the present invention is not described in detail belongs to professional and technical personnel in the field's well-known technique.
Claims (16)
1. a kind of fiber reinforcement aluminium oxide aerogel heat-proof composite material, it is characterised in that: the material includes hydrophobic silica aluminium
Aeroge, fiber, opacifier, aluminium oxide hollow beads and inorganic binder；Wherein, lyophobic alumina aeroge, fiber, oxidation
The mass ratio of aluminium hollow beads, inorganic binder and opacifier is 1:(0.6-3.0): (0.01~0.40): (0.2~4):
(0.05~0.40).
2. heat-barrier material according to claim 1, it is characterised in that: also include surface-active in the heat-insulation composite material
Agent and dispersing agent；The surfactant and dispersing agent can remove at high temperature.
3. heat-barrier material according to claim 1 or 2, it is characterised in that: also wrapped in the heat-insulation composite material hydrophobic
Property silica aerogel.
4. heat-insulation composite material according to claim 1 or 2, it is characterised in that: the fiber includes quartz fibre, oxygen
Change at least one of aluminum fiber and mullite fiber.
5. heat-insulation composite material according to claim 1 or 2, it is characterised in that: the opacifier includes titanium oxide, oxygen
Change at least one of zirconium, zirconium silicate, silicon carbide and boron nitride.
6. heat-insulation composite material according to claim 1 or 2, it is characterised in that: the aluminium oxide hollow beads partial size
For 0.5~1mm, bulk density is 0.5~1g/cm3。
7. heat-insulation composite material according to claim 1 or 2, it is characterised in that: the inorganic binder includes gypsum
And/or aluminous cement.
8. heat-insulation composite material according to claim 2, it is characterised in that: the dispersing agent is ammonium hydroxide.
9. heat-insulation composite material according to claim 2, it is characterised in that: the surfactant includes anion table
Face activating agent, cationic surfactant and block copolymer surfactant.
10. heat-insulation composite material according to claim 8, it is characterised in that: the surfactant is selected from hexadecane
At least one in base trimethyl ammonium chloride, dodecyl sodium sulfate or polyoxyethylene-poly-oxypropylene polyoxyethylene block copolymer
Kind.
11. a kind of preparation side of fiber reinforcement aluminium oxide aerogel heat-proof composite material of any of claims 1-10
Method comprising following steps:
(1) it disperses the fiber, surfactant and dispersing agent in deionized water, obtains liquid mixture；
(2) hydrophobic silica aluminium aeroge, opacifier, inorganic binder and the aluminium oxide hollow beads are uniformly mixed,
Obtain powder mixture；
(3) it disperses the powder mixture in step (2) in the liquid mixture of step (1), stirring to the uniform slurry of formation
Material；
(4) slurry of step (3) is poured into die for molding, then in drying, solidification, obtains the fiber reinforcement aluminium oxide gas
Gel heat-insulation composite material.
12. preparation method according to claim 11, it is characterised in that: fiber, surface-active described in step (1)
Agent, dispersing agent and deionized water mass ratio are as follows: 1:(0.05~0.40): (0.02~0.25): (6~15).
13. preparation method according to claim 11, it is characterised in that: lyophobic alumina airsetting described in step (2)
Glue, aluminium oxide hollow beads, inorganic binder and opacifier mass ratio be 1:(0.01~0.40): (0.2~4): (0.05~
0.40)。
14. preparation method according to claim 11, it is characterised in that: powder mixture and liquid described in step (3)
The mass ratio of body mixture are as follows: 1:(3.5~8.0).
15. preparation method according to claim 11, it is characterised in that: further include hydrophobic silica silicon gas in step (2)
The mass ratio of gel, the lyophobic alumina airsetting rubber powder and hydrophobic silica silica aerogel powder is 1:(0.01~2).
16. preparation method described in 1-15 according to claim 1, it is characterised in that: the temperature of drying described in step (4) is
80~150 DEG C, the time be 6~for 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811313052.9A CN109369129A (en) | 2018-11-06 | 2018-11-06 | Fiber reinforcement aluminium oxide aerogel heat-proof material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313052.9A CN109369129A (en) | 2018-11-06 | 2018-11-06 | Fiber reinforcement aluminium oxide aerogel heat-proof material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892339A (en) * | 2020-07-31 | 2020-11-06 | 航天特种材料及工艺技术研究所 | Nano heat insulation sheet and preparation method thereof |
| CN114605107A (en) * | 2022-04-06 | 2022-06-10 | 广州世陶新材料有限公司 | Fiber-reinforced aerogel heat-insulating material prepared by gel injection molding method and preparation method thereof |
| CN114804805A (en) * | 2022-04-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Aerogel composite material and preparation method thereof |
| CN115011311A (en) * | 2022-06-01 | 2022-09-06 | 华南理工大学 | Composite phase change material and preparation method and application thereof |
| CN115403308A (en) * | 2022-09-28 | 2022-11-29 | 徐渊 | Nano heat insulation plate suitable for different temperature sections and preparation method thereof |
| CN116490463A (en) * | 2020-11-20 | 2023-07-25 | 黑崎播磨株式会社 | Aerogel composite molded body |
| WO2024109289A1 (en) * | 2022-11-21 | 2024-05-30 | 江苏安珈新材料科技有限公司 | Aerogel thermal insulation material with opacifier coating on surface, and preparation method therefor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892339A (en) * | 2020-07-31 | 2020-11-06 | 航天特种材料及工艺技术研究所 | Nano heat insulation sheet and preparation method thereof |
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| CN114605107A (en) * | 2022-04-06 | 2022-06-10 | 广州世陶新材料有限公司 | Fiber-reinforced aerogel heat-insulating material prepared by gel injection molding method and preparation method thereof |
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| CN115011311A (en) * | 2022-06-01 | 2022-09-06 | 华南理工大学 | Composite phase change material and preparation method and application thereof |
| CN115011311B (en) * | 2022-06-01 | 2023-04-28 | 华南理工大学 | Composite phase change material and preparation method and application thereof |
| CN115403308A (en) * | 2022-09-28 | 2022-11-29 | 徐渊 | Nano heat insulation plate suitable for different temperature sections and preparation method thereof |
| WO2024109289A1 (en) * | 2022-11-21 | 2024-05-30 | 江苏安珈新材料科技有限公司 | Aerogel thermal insulation material with opacifier coating on surface, and preparation method therefor |
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Application publication date: 20190222 |