CN107758674A - Aerogel particle and preparation method thereof - Google Patents
Aerogel particle and preparation method thereof Download PDFInfo
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- CN107758674A CN107758674A CN201610689630.3A CN201610689630A CN107758674A CN 107758674 A CN107758674 A CN 107758674A CN 201610689630 A CN201610689630 A CN 201610689630A CN 107758674 A CN107758674 A CN 107758674A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/16—Preparation of silica xerogels
- C01B33/163—Preparation of silica xerogels by hydrolysis of organosilicon compounds, e.g. ethyl orthosilicate
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
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Abstract
The invention discloses a kind of aerogel particle and preparation method thereof, aerogel particle is via made by the following steps：Blend step：One silicone compounds are mixed into an organic solvent, to form a mixed solution；Hydrolysing step：One sour catalyst is added into the mixed solution, so that reaction is hydrolyzed；Condensation step：One alkali catalyst is added into the mixed solution, to carry out condensation reaction, and a hydrophobic dispersion solvent is added in the condensation reaction, and is stirred, make the mixed solution in whipping process gelation to produce more more homogeneous aerogel particles of structure.
Description
Technical field
The present invention relates to a kind of aerogel particle and preparation method thereof.
Background technology
Aeroge is a kind of mushy material with space network, has low-down thermal conductivity, main at present
Applied to heat-insulating heat-preserving material.
The preparation method of aeroge is collosol and gel synthetic method, and main elder generation is by alcoxyl SiClx class (alkoxysilane) or just
After the predecessors such as methyl silicate are mixed with organic solvent, and sour catalyst is added, so that reaction (hydrolysis) is hydrolyzed.
After hydrolysis certain time, then alkali catalyst is added, to carry out condensation reaction (condensation), and condensation reaction
In can gradually form colloidal sol.Molecule in colloidal sol continues condensation reaction bond, gradually forms the high-molecular gel of semisolid,
Again through curing (age) after a while, colloidal sol is set to form Stability Analysis of Structures space network.Finally recycle supercritical drying
The water of aeroge system and methanol equal solvent are extracted drying by technology, and obtain porous dry Monolithic aerogel.
The dry technology used due to the preparation method of above-mentioned aeroge can avoid airsetting for Supercritical Drying Technology
Glue is ruptured in constant pressure and dry process by the effect of surface tension of moisture.But because Supercritical Drying Technology must be entered under high pressure
OK, therefore atomic a small amount of aeroge drying is suitable only for, and is not easy volume production and reduces the production cost of aeroge.
On the other hand, above-mentioned aeroge would generally will above dry Monolithic aerogel in use and crush, but general grinding mode
Easily cause that aerogel structure is uneven and outward appearance is broken (herein please refer to Fig. 9 to Figure 12), and be difficult to obtain it is excellent every
Thermal property.
Another " porous material and its preparation side for having case such as TaiWan, China disclosure of the invention numbering the 200835648th before correlation
Method ", mainly mixing alcoxyl SiClx class or silicate compound are synthesized with organic solvent with sol-gal process, and modified dose
Modify and be made, so that the hydrophilic functional group on porous structure material surface is replaced into hydrophobic functional group whereby, aeroge is kept away
Exempt from the effect of surface tension of moisture and rupture, therefore can be dried at room temperature, at a normal.
The hydrophobicity modification of case aeroge is to utilize the more echelon solvent replacement techniques of normal temperature and pressure, but such a hydrophobicity before this
Modification program need to be performed for more than solvent displacement in 24 hours under normal temperature and pressure conditionses, and processing procedure required time too long, is not inconsistent cost effect
Benefit.
Furthermore the aeroge of case is being crushed using above still needing to will first to dry Monolithic aerogel before this, therefore aeroge is same
There is the problem of structure is uneven and outward appearance is broken.
The content of the invention
Structure is more homogeneous it is an object of the invention to provide one kind production, effect of heat insulation more preferably aerogel particle and its
Preparation method.
To achieve the above object, the present invention uses following technical proposal.
A kind of aerogel particle preparation method, is comprised the steps of：
Blend step：One silicone compounds are mixed into an organic solvent, to form a mixed solution；
Hydrolysing step：One sour catalyst is added into the mixed solution, so that reaction is hydrolyzed；
Condensation step：One alkali catalyst is added into the mixed solution, to carry out condensation reaction, and added in the condensation reaction
One hydrophobic dispersion solvent, and being stirred, make the mixed solution in whipping process gelation and produce more aeroges
Grain, wherein, in the condensation reaction, the mixed solution is stirred with 1200rpm to 2000rpm speed.
Further, the hydrophobic dispersion solvent is one or more solvents being selected from by following formed group：Ketone,
Ethers, esters, the fragrant same clan, alkanes.
Further, post-processing step is also included after the condensation step：Foregoing aerogel particle is filtered out with a filter, connect
And foregoing aerogel particle is cleaned with the mixed liquor of ethanol, water, before being dried in vacuo under 100 DEG C to 115 DEG C of temperature conditionss
State aerogel particle.
Further, a hydrophobicity reforming step is also included after the condensation step：The mixed solution is heated up, and make foregoing
Organic solvent vaporizes, and adds a chlorine and be acylated organic molecule, the chlorine is acylated a hydroxyl of organic molecule and foregoing aerogel particle
Base reacts to each other, and foregoing aerogel particle is produced hydrophobicity, and avoids foregoing aeroge by the hydrophobic dispersion solvent
Particle Breakage.
Further, the chlorine is acylated organic molecule and is formed group by following by one or more be selected from：Chlorination siloxanes,
Chlorine acyl-alkane complexes species, chlorine acyl benzene class.
Further, the organic solvent includes ethanol, the water mutually mixed；In the hydrophobicity reforming step, make the mixing molten
The temperature of liquid sequentially changes into one first temperature conditionss, a second temperature condition and one the 3rd temperature conditionss, first temperature strip
Part is 78 DEG C to 82 DEG C, and the second temperature condition is 100 DEG C to 115 DEG C, and the 3rd temperature conditionss are 40 DEG C to 45 DEG C, this
The chlorine is added during three temperature conditionss and is acylated organic molecule.
Further, a post-processing step is also included after the hydrophobicity reforming step：Foregoing airsetting is filtered out with a filter
Glue particle, foregoing aerogel particle is then cleaned with toluene solvant, then be dried in vacuo foregoing aerogel particle.
A kind of aerogel particle, it is via made by the following steps：
Blend step：One silicone compounds are mixed into an organic solvent, to form a mixed solution；
Hydrolysing step：One sour catalyst is added into the mixed solution, so that reaction is hydrolyzed；
Condensation step：One alkali catalyst is added into the mixed solution, to carry out condensation reaction, and added in the condensation reaction
One hydrophobic dispersion solvent, and being stirred, make the mixed solution in whipping process gelation and produce more aeroges
Grain, the particle diameter of foregoing aerogel particle is 600nm ± 300nm, wherein, in the condensation reaction, with 1200rpm extremely
2000rpm speed stirs the mixed solution.
Preferably, the hydrophobic dispersion solvent is one or more solvents being selected from by following formed group：Ketone,
Ethers, esters, the fragrant same clan, alkanes.
Aerogel particle of the present invention and preparation method thereof is by aforesaid operations, so as to have following effect.
1. the preparation method of the present invention, stirred during condensation step by a large amount of non-compatibility solvents, you can production
The more homogeneous spherical particles shape aerogel particle of structure, to obtain effect of heat insulation more preferably aerogel particle, improves product
Practicality.
2. the aerogel particle of preparation method of the present invention, wherein void content and hole size can (solvent contains according to preparation condition
Amount, solvent viscosity, sour catalyst and alkali catalyst content) regulated and controled.
3. preparation method of the present invention can control the preparation time of aerogel particle by allotment alkali catalyst content.
4. preparation method of the present invention can be by the content and mixing speed of control non-compatibility solvent, you can effectively control
The size of micron aerogel particle, when non-compatibility solvent content is higher and mixing speed is faster, then aerogel particle is smaller；
Relative, when non-compatibility solvent viscosity is smaller and mixing speed is slower, then aerogel particle is bigger.
5. the present invention utilizes the temperature conditionss controlled in reforming step, you can shortens the time needed for replacement technique, most soon
The preparation of hydrophily or hydrophobic aerogel particle can be continuously finished in 4 hours to 5 hours, improves the life of aeroge whereby
Produce efficiency.
Therefore, aerogel particle of the present invention and preparation method thereof improvement in the past aeroge have that structure is uneven, outward appearance is broken and
The problem of being difficult to lift heat-insulating properties.
Brief description of the drawings
Fig. 1 is the step schematic flow sheet of the embodiment of the present invention.
Fig. 2 is the step schematic flow sheet of the modified step of the embodiment of the present invention.
Fig. 3 aerogel particle scanning electron micrographs prepared by stirring condition under the conditions of 1200rpm for the present invention.
Fig. 4 aerogel particle scanning electron micrographs prepared by stirring condition under the conditions of 1800rpm for the present invention.
Fig. 5 is aerogel particle penetration type electron microphoto of the present invention.
Fig. 6 is the micro- enlarged photograph of aerogel particle penetration type electron of the present invention.
Fig. 7 is absorption and desorption curve of the aerogel particle of the invention without hydrophobicity reforming step under logical nitrogen
Figure.
Fig. 8 is the hole distribution map of the present invention aerogel particle converted according to Fig. 7.
Fig. 9 is current scanning electron micrograph of the aerogel powder under 500 multiplying powers on the market.
Figure 10 is current scanning electron micrograph of the aerogel powder under 1000 multiplying powers on the market.
Figure 11 is current scanning electron micrograph of the aerogel powder under 5,000 multiplying powers on the market.
Figure 12 is current scanning electron micrograph of the aerogel powder under 10,000 multiplying powers on the market.
【Symbol description】
(S1) blend step (S2) hydrolysing step
(S3) condensation step (S4) (S40) post-processing step
(S5) hydrophobicity reforming step.
Embodiment
The primary efficacy of summary technical characteristic, the aerogel particle of the embodiment of the present invention and preparation method thereof can be in
Following embodiments clearly appear from.
Please referring initially to Fig. 1, aerogel particle preparation method of the embodiment of the present invention is disclosed, is comprised the steps of：Blend step
(S1), hydrolysing step (S2), condensation step (S3) and post-processing step (S4), wherein：
The blend step (S1)：One silicone compounds are mixed into an organic solvent, to form a mixed solution.The siliconization
Compound (alkoxysilane) is, for example, tetramethyl siloxanes (tetramethoxysilane；) or tetraethyl siloxanes TMOS
(tetraethoxysilane；TEOS), the predecessor such as methyl silicate, the forerunner such as the silicone compounds or methyl silicate
The content of thing is 2.1 molar percentages between 12.5 molar percentages.The content of the organic solvent is 97.9 molar percentages
To between 87.5 molar percentages.
The hydrolysing step (S2)：One sour catalyst is added into the mixed solution, so that reaction (hydrolysis) is hydrolyzed.Its
In, the silicone compounds are 1 with sour catalyst content ratio：0.3~1：0.001, reaction is hydrolyzed.
The another silicone compounds are 1 with sour catalyst content ratio：0.001 to 1：0.3.When the silicone compounds and the acid
The content ratio of catalyst is 1：When 0.001, then the time of the hydrolysis need to be up to 300 minutes, when the silicone compounds and the acid
The content ratio of catalyst is 1：Hydrolysis time need to reach 10min when 0.3.It can thus be appreciated that the time needed for hydrolysis can be with the sour catalyst
The increase of content and decline.
The condensation step (S3)：One alkali catalyst is added into the mixed solution, to carry out condensation reaction (condensation).
The mol ratio of the sour catalyst and the alcohol mixed solution and alkali catalyst water and alcohol mixed solution is, for example, 10：10 to 10：40.Should
The mol ratio of alkali catalyst and the sour catalyst is, for example, 1.0:1.0 to 3.0:1.0.
In the alkali catalyst and alcohol mixed solution, the alkali catalyst content increase will substantially shorten condensation reaction time (i.e.
The gelation time of aeroge).(alkali catalyst：Sour catalyst ratio is 1.0:Gelation about 1600 minutes when 1.0；Alkali catalyst：Acid touches
Matchmaker's ratio is 3.0:Gelation is fallen to approximately 5 minutes when 1.0, therefore adjustable alkali catalyst content is with respect to the ratio of the sour catalyst content
Example is with the time required to adjusting processing procedure.
Before the condensation reaction in the condensation step (S3) is nearly completed, the mixed solution can be initially formed colloidal sol shape
(sol).The mixed solution is controlled in the hydrophobic dispersion solvent that a large amount of non-conforming systems are added under conditions of colloidal sol shape, gone forward side by side
Row 1200rpm to 2000rpm quick stirring, make mixed solution under rapid mixing conditions by the hydrophobic dispersion solvent repulsion
Influence, and gelation forms pearl shape or spherical aerogel particle, particle diameter about 600nm ± 300nm of foregoing aerogel particle.
So-called hydrophobic dispersion solvent can be C6 ~ C16 ketones, C6 ~ C16 ethers, C6 ~ C16 esters, C7 ~ C16 aromatic series
Class, C8 ~ C20 alkanes, halogenation ethers, halogenation esters, halogenated aromatic class and halogenation alkanes etc..Specifically such as toluene, coal
Oil, remove stain oil etc..
The post-processing step (S4)：Foregoing aerogel particle is filtered out with a filter, it is then clear with the mixed liquor of ethanol, water
Wash foregoing aerogel particle 3 to 4 times, foregoing aeroge is dried with after being vacuumized under 100 DEG C to 115 DEG C of temperature conditionss
Grain, you can obtain spherical aerogel particle.
Continue please refer to Fig. 2, it is preferable that above-mentioned aerogel particle can further carry out hydrophobicity modification, mainly at this
Also include a hydrophobicity reforming step (S5) after condensation step：The temperature of the mixed solution is set sequentially to change into one first temperature strip
Part, a second temperature condition and one the 3rd temperature conditionss, first temperature conditionss are 78 DEG C to 82 DEG C, make the second of the mixed solution
Alcohol is vaporized (ethyl alcohol boiling point is 78 DEG C), and the second temperature condition is 100 DEG C to 115 DEG C (boiling point of water is 100 DEG C), makes this
The water of mixed solution is vaporized, and the 3rd temperature conditionss are 40 DEG C to 45 DEG C.
A chlorine is added in three temperature conditionss and is acylated organic molecule, the chlorine is acylated organic molecule and selected to be one or more
From in by following formed group：Chlorination siloxanes, chlorine acyl-alkane complexes species, chlorine acyl benzene class.
Whereby, make the chlorine be acylated the monohydroxy of organic molecule and foregoing aerogel particle to react to each other, and make foregoing airsetting
Glue particle produces hydrophobicity, and by the repulsive force between the hydrophobic dispersion solvent and foregoing aerogel particle, avoids foregoing gas
Gel particle crushes.If above-mentioned aerogel particle changes with toluene through hydrophobicity reforming step (S5), the post-processing step (S40)
Solvent cleans foregoing aerogel particle, with the acylated organic molecule that goes to dechlorinate, then vacuumizes again and dries foregoing aerogel particle.
Whereby, you can the aerogel particle of the high secondary um porous of spherical shape, size homogeneity is prepared, on the one hand can be with
Outward appearance, the homogeneity of structure of aerogel particle are improved, improves application.In addition, it is acylated by heating vaporization and chlorine organic
The addition of molecule, can rapid, high volume prepare hydrophobicity modification aeroge technology, make aeroge be easier to be expanded by volume production
Big industry application scale.
Table one is referred to below, aerogel particle prepared by display this case embodiment, is utilized specific surface area analysis instrument (BET)
The front and rear parameter comparison sheet of analysis modification：
In tableS BETFor the specific surface area of BET measurements；V poreFor the pore volume of BET measurements；D pFor the hole diameter of BET measurements；S microFor micropore specific area；V microFor micro pore volume.
Data is at ambient temperature, aerogel particle utilize specific surface area before being modified with Unit Weight and after modification in table
Analyzer, under conditions of P/Po=0 is evacuated to, contained solvent in aerogel particle or the impurity of absorption are desorbed removal
Afterwards, logical nitrogen (N2) make into aerogel particle aerogel particle absorption nitrogen (N2) to pressure reach saturation conditions under (P/Po=
1), then vacuumize carry out desorption process once again, make adsorption saturation nitrogen aerogel particle carry out nitrogen desorption, when desorption extremely
The pressure of nitrogen (N2) reaches the condition of P/Po=0.At this in absorption and desorption process, absorption and the desorption of aerogel particle are measured
Curve, and carry out analysis and can obtain above specific surface area related data.
It is continuous to refer to Fig. 3 and Fig. 4, utilize sweep electron microscope (SEM, scanning electron
Microscope the microphoto of distribution and apparent size of the aerogel particle under different micro-scales) is captured, display is made
The surface structure of standby aerogel particle has uniform, the spherical shape outward appearance of high homogeneity.
It is continuous to refer to Fig. 5 and Fig. 6, utilize sweep electron microscope (SEM, scanning electron
Microscope internal structure and its hole distribution of the aerogel particle under different micro-scales) are captured.Show aeroge point
Sub mutually aggregation forms nanoscale aerogel structure.
Continue referring to Fig. 7, in the display embodiment of the present invention, the aerogel particle without hydrophobicity reforming step is in logical nitrogen
Under absorption and desorption curve；And Fig. 8 then shows absorption and the desorption curve of the aerogel particle without hydrophobicity reforming step
It is converted into hole distribution map.
The explanation of summary embodiment, when can be fully understood by the present invention operation, use and the present invention produce the effect of,
Embodiment described above is only presently preferred embodiments of the present invention, when can not limit the scope implemented of the present invention, i.e. Yi Benfa with this
Bright claims and description of the invention content makees simple equivalent changes and modifications, in the range of all the category present invention covers.
Claims (9)
1. a kind of aerogel particle preparation method, it is characterised in that comprise the steps of：Blend step：By a silicone compound
Thing mixes an organic solvent, to form a mixed solution；Hydrolysing step：One sour catalyst is added into the mixed solution, to enter water-filling
Solution reaction；Condensation step：One alkali catalyst is added into the mixed solution, to carry out condensation reaction, and in the condensation reaction
Add a hydrophobic dispersion solvent, and stirred, make the mixed solution in whipping process gelation and produce more airsettings
Glue particle, wherein, in the condensation reaction, the mixed solution is stirred with 1200rpm to 2000rpm speed.
2. aerogel particle preparation method as claimed in claim 1, it is characterised in that：The hydrophobic dispersion solvent to be a kind of or
A variety of solvents being selected from by following formed group：Ketone, ethers, esters, the fragrant same clan, alkanes.
3. aerogel particle preparation method as claimed in claim 2, it is characterised in that：Locate after also including after the condensation step
Manage step：Foregoing aerogel particle is filtered out with a filter, foregoing aerogel particle is then cleaned with the mixed liquor of ethanol, water,
Foregoing aerogel particle is dried in vacuo under 100 DEG C to 115 DEG C of temperature conditionss.
4. aerogel particle preparation method as claimed in claim 2, it is characterised in that：Also include one after the condensation step to dredge
Water-based reforming step：The mixed solution is heated up, and vaporize aforementioned organic solvents, and add a chlorine and be acylated organic molecule, make
The monohydroxy that the chlorine is acylated organic molecule and foregoing aerogel particle reacts to each other, and it is hydrophobic to produce foregoing aerogel particle
Property, and avoid foregoing aerogel particle from crushing by the hydrophobic dispersion solvent.
5. aerogel particle preparation method as claimed in claim 4, it is characterised in that：The chlorine be acylated organic molecule to be a kind of or
It is a variety of to be selected from by following formed group：Chlorination siloxanes, chlorine acyl-alkane complexes species, chlorine acyl benzene class.
6. aerogel particle preparation method as claimed in claim 4, it is characterised in that：The organic solvent includes what is mutually mixed
Ethanol, water；In the hydrophobicity reforming step, the temperature of the mixed solution is set sequentially to change into one first temperature conditionss, one second
Temperature conditionss and one the 3rd temperature conditionss, first temperature conditionss be 78 DEG C to 82 DEG C, the second temperature condition be 100 DEG C extremely
115 DEG C, the 3rd temperature conditionss are 40 DEG C to 45 DEG C, and the chlorine is added in three temperature conditionss and is acylated organic molecule.
7. aerogel particle preparation method as claimed in claim 4, it is characterised in that：Also wrapped after the hydrophobicity reforming step
Include a post-processing step：Foregoing aerogel particle is filtered out with a filter, foregoing aerogel particle is then cleaned with toluene solvant,
Foregoing aerogel particle is dried in vacuo again.
8. a kind of aerogel particle, it is characterised in that via made by the following steps：Blend step：By a silicone compounds
An organic solvent is mixed, to form a mixed solution；Hydrolysing step：One sour catalyst is added into the mixed solution, to be hydrolyzed
Reaction；Condensation step：One alkali catalyst is added into the mixed solution, to carry out condensation reaction, and added in the condensation reaction
Enter a hydrophobic dispersion solvent, and stirred, make the mixed solution in whipping process gelation and produce more aeroges
Particle, the particle diameter of foregoing aerogel particle is 600nm ± 300nm, wherein, in the condensation reaction, with 1200rpm extremely
2000rpm speed stirs the mixed solution.
9. aerogel particle as claimed in claim 8, it is characterised in that：The hydrophobic dispersion solvent is selected from for one or more
In the solvent by following formed group：Ketone, ethers, esters, the fragrant same clan, alkanes.
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Cited By (4)
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| CN110894167A (en) * | 2019-09-26 | 2020-03-20 | 上海稀点新材料科技有限公司 | Nano porous heat insulation material and preparation method thereof |
| CN111218024A (en) * | 2018-11-27 | 2020-06-02 | 台湾气凝胶科技材料开发股份有限公司 | Method for continuously preparing core-shell hydrophilic-hydrophobic bipolar composite aerogel powder |
| CN113563012A (en) * | 2020-04-29 | 2021-10-29 | 台湾气凝胶科技材料开发股份有限公司 | Preparation method of cold-resisting and heat-insulating hydrophobic aerogel composite jelly and related product thereof |
| CN113563046A (en) * | 2020-04-29 | 2021-10-29 | 台湾气凝胶科技材料开发股份有限公司 | Preparation method of high-temperature-resistant, heat-insulating and fireproof aerogel/inorganic fiber composite adhesive material and application of product thereof |
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| CN111218024A (en) * | 2018-11-27 | 2020-06-02 | 台湾气凝胶科技材料开发股份有限公司 | Method for continuously preparing core-shell hydrophilic-hydrophobic bipolar composite aerogel powder |
| CN111218024B (en) * | 2018-11-27 | 2022-05-13 | 台湾气凝胶科技材料开发股份有限公司 | Method for continuously preparing core-shell hydrophilic-hydrophobic bipolar composite aerogel powder |
| CN110894167A (en) * | 2019-09-26 | 2020-03-20 | 上海稀点新材料科技有限公司 | Nano porous heat insulation material and preparation method thereof |
| CN113563012A (en) * | 2020-04-29 | 2021-10-29 | 台湾气凝胶科技材料开发股份有限公司 | Preparation method of cold-resisting and heat-insulating hydrophobic aerogel composite jelly and related product thereof |
| CN113563046A (en) * | 2020-04-29 | 2021-10-29 | 台湾气凝胶科技材料开发股份有限公司 | Preparation method of high-temperature-resistant, heat-insulating and fireproof aerogel/inorganic fiber composite adhesive material and application of product thereof |
| CN113563046B (en) * | 2020-04-29 | 2023-03-14 | 台湾气凝胶科技材料开发股份有限公司 | Preparation method of high-temperature-resistant, heat-insulating and fireproof aerogel/inorganic fiber composite adhesive material and application of product thereof |
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