CN114150434A - Aerogel composite fiber felt and preparation method thereof - Google Patents
Aerogel composite fiber felt and preparation method thereof Download PDFInfo
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- CN114150434A CN114150434A CN202111387417.4A CN202111387417A CN114150434A CN 114150434 A CN114150434 A CN 114150434A CN 202111387417 A CN202111387417 A CN 202111387417A CN 114150434 A CN114150434 A CN 114150434A
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- 239000004964 aerogel Substances 0.000 title claims abstract description 124
- 239000000835 fiber Substances 0.000 title claims abstract description 117
- 239000002131 composite material Substances 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000000839 emulsion Substances 0.000 claims abstract description 18
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 239000000080 wetting agent Substances 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 22
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052863 mullite Inorganic materials 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- -1 methyl silicon potassium alcohol amine Chemical class 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- AIPVRBGBHQDAPX-UHFFFAOYSA-N hydroxy(methyl)silane Chemical compound C[SiH2]O AIPVRBGBHQDAPX-UHFFFAOYSA-N 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- NCWQJOGVLLNWEO-UHFFFAOYSA-N methylsilicon Chemical compound [Si]C NCWQJOGVLLNWEO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/413—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing granules other than absorbent substances
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4242—Carbon fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
- D04H1/4342—Aromatic polyamides
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides an aerogel composite fiber felt which is prepared from the following raw materials in parts by weight: 5-30 parts of aerogel powder, 20-80 parts of fiber, 10-20 parts of emulsion, 1-10 parts of wetting agent, 1-10 parts of dispersing agent, 1-10 parts of regulator and 10-70 parts of deionized water. The invention also discloses a preparation method of the aerogel composite fiber felt. The aerogel composite fiber felt provided by the invention has better fireproof and heat-insulating properties.
Description
Technical Field
The invention relates to an aerogel composite fiber felt and a preparation method thereof.
Background
The aerogel is a nano material with a three-dimensional network structure, and the medium filled in the network structure in the aerogel is air, so the aerogel has the advantages of low density, low heat conductivity coefficient, high porosity and the like, and has wide application prospects in the fields of heat preservation, heat insulation, energy conservation and consumption reduction. The fiber product has good flexibility, has excellent heat insulation and mechanical properties after being compounded with the aerogel material, and is a high-performance heat insulation material.
The traditional fiber aerogel felt is prepared by adopting a two-step process, namely, a fiber base material is prepared firstly and then is compounded with aerogel, and the method has the following problems: the process is complex, and the aerogel is compounded unevenly, so that the actual use effect of the fiber aerogel felt is poor.
Disclosure of Invention
The invention aims to provide an aerogel composite fiber felt which has better fireproof and heat-insulating properties.
In order to solve the technical problems, the technical scheme of the invention is as follows:
an aerogel composite fiber felt is prepared from the following raw materials in parts by weight: 5-30 parts of aerogel powder, 20-80 parts of fiber, 10-20 parts of emulsion, 1-10 parts of wetting agent, 1-10 parts of dispersing agent, 1-10 parts of regulator and 10-70 parts of deionized water.
Furthermore, the aerogel powder is SiO2Aerogel powder, TiO2Aerogel powder, Al2O3One or more of aerogel powder and graphene aerogel powder, wherein the particle size of the aerogel powder is 50-1000 meshes.
Furthermore, the fiber is one or more of aluminum silicate fiber, mullite fiber, zirconia fiber, pre-oxidized fiber, carbon fiber, aramid fiber and polyester fiber, and the diameter of the fiber is 0.0001mm-3 mm.
Further, the emulsion is one or more of acrylic emulsion, EVA emulsion and polyurethane emulsion.
Further, the wetting agent of the invention is one or two of polyethylene glycol and triethanolamine.
Further, the dispersing agent is one or more of 5040 dispersing agent, sodium hexametaphosphate, sodium dodecyl benzene sulfonate, polyacrylic acid, sodium polyacrylate, calcium polyacrylate, sodium dodecyl sulfate and polyvinyl alcohol.
Furthermore, the regulator is one or more of ammonia water, organic amine, AMP-95, AHP-95, SP-95 and methyl silicon potassium-alcohol amine mixed liquor.
The invention also provides a preparation method of the aerogel composite fiber felt.
In order to solve the technical problems, the technical scheme is as follows:
a preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 0.5-2 hours to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 0.3-15mm through a crawler belt silk screen pressing plate, and then placing the aerogel composite fiber slurry in drying equipment for drying for 0.5-3 hours to obtain the aerogel composite fiber felt.
Further, in the step (1) of the present invention, the stirring temperature of the dispersion machine is 30-75 ℃, and the stirring speed is 500-.
Further, in the step (2) of the present invention, the temperature of the drying device is 40 to 120 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the aerogel composite fiber felt mainly comprises fibers with good fireproof performance and aerogel powder with good heat insulation performance, when aerogel composite fiber slurry is prepared, aerogel powder is mixed with the fibers and other raw materials, and the aerogel powder can be uniformly distributed in gaps of the fibers with the help of the other raw materials, so that the aerogel composite fiber felt with good fireproof and heat insulation performance is prepared, and can be widely applied to the fields of buildings, traffic, industrial pipelines and the like.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: SiO with 50-1000 mesh particle size220 parts of aerogel powder, 60 parts of aluminum silicate fibers with the diameter of 0.0001mm-3mm and 20 parts of acrylic emulsion10 parts of polyethylene glycol, 5 parts of sodium hexametaphosphate, 5 parts of polyvinyl alcohol, 5 parts of ammonia water and 70 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 1 hour at the temperature of 40 ℃ and the stirring speed of 1500 rpm to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 2mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at the temperature of 80 ℃ for drying for 1 hour to obtain the aerogel composite fiber felt.
Example 2
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: SiO with 50-1000 mesh particle size25 parts of aerogel powder, 20 parts of mullite fiber with the diameter of 0.0001mm-3mm, 15 parts of EVA emulsion, 1 part of triethanolamine, 1 part of 5040 dispersant, 2 parts of organic amine and 10 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 0.5 hour at the temperature of 30 ℃ and the stirring speed of 3000 r/min to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 0.3mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at the temperature of 40 ℃ for drying for 3 hours to obtain the aerogel composite fiber felt.
Example 3
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: al with a particle size of 50-1000 mesh2O330 parts of aerogel powder, 80 parts of zirconia fiber with the diameter of 0.0001mm-3mm, 10 parts of polyurethane emulsion, 8 parts of triethanolamine, 8 parts of sodium dodecyl benzene sulfonate, AMP-9510 part and 60 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 2 hours at the conditions of 75 ℃ and the stirring speed of 500 r/min to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to 15mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at the temperature of 120 ℃ for drying for 0.5 hour to obtain the aerogel composite fiber felt.
The first experimental example: performance testing
The test method comprises the following steps:
testing fire prevention: taking an aerogel composite fiber felt with the specification of 300X 200X 3mm as a sample, carrying out flame burning on the sample by using a butane spray gun (flame temperature 1200 ℃), testing the burn-through time, stopping the test if the burn-through time is not 1h, and recording the burning state.
Secondly, heat insulation test: taking an aerogel composite fiber felt with the specification of 300 multiplied by 200 multiplied by 3mm as a sample, heating to 800 ℃ by using a hot table, placing the sample on a heating table, and measuring the cold surface temperature of the sample after 20 min.
And (3) testing results:
burning the sample for 1h by using a flame spray gun at 1200 ℃, wherein the sample is not burnt through, and the aerogel composite fiber felt has better fireproof performance; the temperature of the cold surface of the sample in the three examples is lower than 220 ℃ and the temperature difference between the cold surface and the hot surface is higher than 580 ℃ after the sample is heated for 20min at 800 ℃, which shows that the aerogel composite fiber felt has excellent heat insulation effect.
Example 1: SiO 22Aerogel powder and aluminum silicate fiber are burnt by a flame spray gun for 1h at the fire-resistant temperature of 1300 ℃ and 1200 ℃ without burning through, and the cold surface temperature is less than 220 ℃ after the heating table at 800 ℃ is heated for 20 min;
example 2: SiO 22Firing the aerogel powder and mullite fiber by a flame spray gun at the fire-resistant temperature of 1600 ℃ for 1h without firing, and heating the aerogel powder and mullite fiber by a heating table at 800 ℃ for 20min until the cold surface temperature is lower than 220 ℃;
example 3: al (Al)2O3Aerogel powder and zirconia fiber are fired by a flame spray gun at the fire resistance temperature of 2000 ℃ and the temperature of 1200 ℃ for 1h without being fired, and after a heating table at the temperature of 800 ℃ is heated for 20min, the temperature of a cold surface is less than 200 ℃;
as can be seen from the above, the heat insulating temperature was slightly lower in examples 1 and 2 than in example 3 because of SiO2Aerogel powder electrodeTemperature limited resistance to Al2O3Low aerogel powder, SiO at 800 deg.C2The three-dimensional nano network structure of the aerogel is damaged to a certain degree, the heat insulation is influenced to a certain degree, and Al2O3The network structure of the aerogel can still keep stable, and the heat-insulating property is stable.
Example 4
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: TiO with 50-1000 mesh particle size215 parts of aerogel powder, 50 parts of pre-oxidized fiber with the diameter of 0.0001mm-3mm, 12 parts of polyurethane emulsion, 5 parts of polyethylene glycol, 5 parts of polyacrylic acid, AHP-951 parts and 40 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 1.5 hours at the stirring speed of 2000 r/min at the temperature of 60 ℃ to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 5mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at 100 ℃ for drying for 2 hours to obtain the aerogel composite fiber felt.
Example 5
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: 15 parts of graphene aerogel powder with the granularity of 50-1000 meshes, 50 parts of carbon fiber with the diameter of 0.0001mm-3mm, 12 parts of acrylic emulsion, 5 parts of polyethylene glycol, 5 parts of sodium polyacrylate, SP-951 parts and 40 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 1.5 hours at the stirring speed of 2000 r/min at the temperature of 60 ℃ to obtain aerogel composite fiber slurry;
(2) and (3) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 5mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at 100 ℃ for drying for 1 hour to obtain the aerogel composite fiber felt.
Example 6
AerogelThe composite fiber felt is prepared from the following raw materials in parts by weight: SiO with 50-1000 mesh particle size215 parts of aerogel powder, 50 parts of aramid fiber with the diameter of 0.0001mm-3mm, 12 parts of acrylic emulsion, 5 parts of polyethylene glycol, 5 parts of calcium polyacrylate, 1 part of methyl silanol potassium-alcohol amine mixed solution and 40 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 1.5 hours at the stirring speed of 2000 r/min at the temperature of 60 ℃ to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 5mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at 100 ℃ for drying for 1.5 hours to obtain the aerogel composite fiber felt.
Example 7
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: SiO with 50-1000 mesh particle size215 parts of aerogel powder, 50 parts of polyester fiber with the diameter of 0.0001mm-3mm, 12 parts of acrylic emulsion, 5 parts of polyethylene glycol, 5 parts of sodium dodecyl sulfate, AMP-951 parts and 40 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 1.5 hours at the stirring speed of 2000 r/min at the temperature of 60 ℃ to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 5mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at 100 ℃ for drying for 2 hours to obtain the aerogel composite fiber felt.
Example 8
The aerogel composite fiber felt is prepared from the following raw materials in parts by weight: SiO with 50-1000 mesh particle size215 parts of aerogel powder, 50 parts of pre-oxidized silk fiber with the diameter of 0.0001mm-3mm, 12 parts of acrylic emulsion, 5 parts of polyethylene glycol, 5 parts of polyvinyl alcohol, AMP-951 parts and 40 parts of deionized water.
The preparation method of the aerogel composite fiber felt comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 1.5 hours at the stirring speed of 2000 r/min at the temperature of 60 ℃ to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 5mm through a crawler belt wire mesh pressing plate, and then placing the aerogel composite fiber slurry in drying equipment at 100 ℃ for drying for 0.5 hour to obtain the aerogel composite fiber felt.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An aerogel composite fiber mat, comprising: the feed is prepared from the following raw materials in parts by weight: 5-30 parts of aerogel powder, 20-80 parts of fiber, 10-20 parts of emulsion, 1-10 parts of wetting agent, 1-10 parts of dispersing agent, 1-10 parts of regulator and 10-70 parts of deionized water.
2. An aerogel composite fiber blanket as claimed in claim 1, wherein: the aerogel powder is SiO2Aerogel powder, TiO2Aerogel powder, Al2O3One or more of aerogel powder and graphene aerogel powder, wherein the particle size of the aerogel powder is 50-1000 meshes.
3. An aerogel composite fiber blanket as claimed in claim 1, wherein: the fiber is one or more of aluminum silicate fiber, mullite fiber, zirconia fiber, pre-oxidized fiber, carbon fiber, aramid fiber and polyester fiber, and the diameter of the fiber is 0.0001mm-3 mm.
4. An aerogel composite fiber blanket as claimed in claim 1, wherein: the emulsion is one or more of acrylic emulsion, EVA emulsion and polyurethane emulsion.
5. An aerogel composite fiber blanket as claimed in claim 1, wherein: the wetting agent is one or two of polyethylene glycol and triethanolamine.
6. An aerogel composite fiber blanket as claimed in claim 1, wherein: the dispersing agent is one or more of 5040 dispersing agent, sodium hexametaphosphate, sodium dodecyl benzene sulfonate, polyacrylic acid, sodium polyacrylate, calcium polyacrylate, sodium dodecyl sulfate and polyvinyl alcohol.
7. An aerogel composite fiber blanket as claimed in claim 1, wherein: the regulator is one or more of ammonia water, organic amine, AMP-95, AHP-95, SP-95 and methyl silicon potassium alcohol amine mixed solution.
8. The method of preparing an aerogel composite fiber blanket of any of claims 1-7, wherein: the method comprises the following steps:
(1) weighing the raw materials according to the weight parts, adding the raw materials into a dispersion machine, and stirring for 0.5-2 hours to obtain aerogel composite fiber slurry;
(2) and (2) controlling the thickness of the aerogel composite fiber slurry obtained in the step (1) to be 0.3-15mm through a crawler belt silk screen pressing plate, and then placing the aerogel composite fiber slurry in drying equipment for drying for 0.5-3 hours to obtain the aerogel composite fiber felt.
9. The method of preparing an aerogel composite fiber blanket as claimed in claim 8, wherein: in the step (1), the stirring temperature of the dispersion machine is 30-75 ℃, and the stirring speed is 500-3000 r/min.
10. The method of preparing an aerogel composite fiber blanket as claimed in claim 8, wherein: in the step (2), the temperature of the drying equipment is 40-120 ℃.
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| JPH09132853A (en) * | 1995-09-26 | 1997-05-20 | Basf Ag | Preparation of reusable fiber composite material, fiber composite material and method for reuse of fiber composite material |
| CN108658572A (en) * | 2017-04-25 | 2018-10-16 | 郑善 | A kind of preparation method of anti-shedding aeroge complex heat-preservation felt |
| CN112321313A (en) * | 2020-11-30 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Ceramic fiber aerogel composite material and preparation method thereof |
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| JPH09132853A (en) * | 1995-09-26 | 1997-05-20 | Basf Ag | Preparation of reusable fiber composite material, fiber composite material and method for reuse of fiber composite material |
| US6458230B1 (en) * | 1995-09-26 | 2002-10-01 | Basf Aktiengesellschaft | Preparation of recyclable fiber composites |
| CN108658572A (en) * | 2017-04-25 | 2018-10-16 | 郑善 | A kind of preparation method of anti-shedding aeroge complex heat-preservation felt |
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