CN107604634A - A kind of re-compounded aeroge fibrofelt and preparation method thereof - Google Patents
A kind of re-compounded aeroge fibrofelt and preparation method thereof Download PDFInfo
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- CN107604634A CN107604634A CN201710758429.0A CN201710758429A CN107604634A CN 107604634 A CN107604634 A CN 107604634A CN 201710758429 A CN201710758429 A CN 201710758429A CN 107604634 A CN107604634 A CN 107604634A
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Abstract
The present invention relates to a kind of re-compounded aeroge fibrofelt and preparation method thereof, this method comprises the following steps：Aerogel powder is dissolved in formation aerogel powder solution in solvent；Fibrofelt is immersed in the aerogel powder solution in S1, immersion treatment；Fibrofelt after the completion of immersion treatment is taken out and is placed in drying to constant weight in drying plant, is produced.The beneficial effects of the invention are as follows：It is different from the In-situ reaction of routine, the present invention is not present by aerogel precursor body the gelation on fibrofelt the step of and the catalytic modification stage in later stage, therefore gel precursor solution preparation process, gelation processing and later stage catalytic modification step are not needed, be particularly suitable for use in production aeroge super thin fiber felt；Its technique is simple, eliminates substantial amounts of chemical industry equipment, is not also limited by place, greatly reduces the production cost of aeroge fibrofelt and improves production efficiency, therefore it is a kind of preparation method of very promising aeroge fibrofelt.
Description
Technical field
The invention belongs to gel rubber material field, and in particular to a kind of re-compounded aeroge fibrofelt and its preparation side
Method.
Background technology
Aeroge is a kind of low density material with nanometer porous structure, because its density is extremely low, in light weight, airsetting
Glue is generally also referred to as solid cigarette；Meanwhile in aeroge more than 95% be all air, therefore it also has very excellent heat-insulated effect
Fruit, as silica aerogel at normal temperatures thermal conductivity factor can as little as 0.013W/ (mk), therefore aeroge is considered as that property is exsertile
Heat preserving and insulating material.However, pure aeroge intensity is poor, it is difficult to independent role be block materials be used for adiabatic heat-insulation engineering or its
Its field.Usual solution to the problems described above is that aeroge and fibre reinforced materials are compounded to form into composite, i.e. airsetting
Glue fiber felt (aerogel blanket), to strengthen the intensity of aerogel material, meets requirement.
All using the method for In-situ reaction, (such as CN105906298A is disclosed aeroge fiber felt product in the prior art
Content)：By the pre- adult of presoma (not aeroge finished product) impregnated fabric fiber of aeroge, then handled through gelation
With catalysis post processing etc. (be changed into a series of processing of aeroge by aerogel precursor body, may include solution replace, catalysis,
Surface modification, constant pressure and dry or supercritical drying etc.), aerogel precursor body is in fabric fiber surface and internal in-situ generation airsetting
Glue.This method is disadvantageous in that：Complex process needs, it is necessary to the special chemical industry equipment such as reactor or supercritical reaction kettle
Sufficiently large production space is wanted, technology and credit requirement threshold are high, and large-scale production is difficult.Therefore, need badly open in the prior art
Get angry the new preparation method of gelatinous fibre felt, to overcome many deficiencies existing for in-situ compositing production aeroge fibrofelt.
The content of the invention
The present invention provides a kind of re-compounded aeroge fibrofelt and preparation method thereof, it is intended to overcomes to a certain extent existing
Have in technology using in-situ compounding process production aeroge fibrofelt above shortcomings.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of preparation of re-compounded aeroge fibrofelt
Method, it comprises the following steps：
S1. solution is prepared：Aerogel powder is dissolved in formation aerogel powder solution in solvent；
S2. soak compound：Fibrofelt is immersed in the aerogel powder solution in S1, immersion treatment 1-60min is so that gas
The abundant wetting fibre felt of gel solution；Immersion treatment is specifically as follows Dipping, negative pressure immersion, circulation pipe in reactive tank
Body immersion, extruding immersion etc. those skilled in the art can thinkable immersion way, as long as can guarantee that airsetting sol solution fully soaks
Moisten fibrofelt, the purpose fully infiltrated is to make the aerogel powder in aerogel powder solution dispersed to fibrofelt
Top layer and/or inside.
S3. drying and processing:Fibrofelt after the completion of immersion treatment is taken out and is placed in drying to constant weight in drying plant, i.e.,
.
On the basis of above-mentioned technical proposal, the present invention can also have following further specifically chosen or more preferably select.
Specifically, the particle diameter of aerogel powder is 5-70 μm in S1, the concentration of aerogel powder solution is 0.5-10wt%.
It should be noted that the aerogel powder of the present invention is not limited to aerosil powder, aluminum oxide gas can also be included
Gel or carbon aerogels etc..
Optimal, the particle diameter of aerogel powder is 10-20 μm in S1, and the concentration of aerogel powder solution is 2-5wt%.
Specifically, the solvent in S1 is the ethanol water of n-hexane, hexamethylene, ethanol, methanol or volume fraction more than 80%
Solution.It should be noted that solvent above-mentioned first can also be other thinkable low tables of one of ordinary skill in the art institute
The organic solvent of face energy, appropriate necessary hydrotropy composition, such as surfactant, wetting secondly can be also included in above-mentioned solvent
Agent, dispersant etc., i.e., the solvent comprising certain hydrotropy composition should also include the scope of the present invention.
Specifically, the fibrofelt in S2 is glass mat, rock wool fibers felt, ceramic fiber blanket, polyester fiber felt or nothing
Spin cloth.It is understood that in addition to the fibrofelt of the above-mentioned several types enumerated, the fibrofelt can also be that other are common mixed
Spin fibrofelt made of fiber.
Specifically, the thickness of the fibrofelt is 0.05-10mm.
Optimal, the thickness of the fibrofelt is 0.05-1mm.
Specifically, the drying plant used in S3 is closed hot-rolling equipment, obtained after the completion of drying in the secondary of web-like
Composite aerogel fibrofelt.
Specifically, the drying temperature in S3 is 60-110 DEG C, drying time 1-60min.Optimal, drying temperature 80
DEG C, drying time 1-2min.
Present invention also offers a kind of re-compounded aeroge fibrofelt, it is obtained by above-mentioned preparation method.
Compared with prior art, the beneficial effects of the invention are as follows：Using commercially available airsetting rubber powder as raw material, made by infusion method
Airsetting rubber powder fully contacts with fibrofelt, then dry make aeroge and fibrofelt compound target product, be particularly suitable for use in life
Aerogenesis gel super thin fiber felt, different from the In-situ reaction of routine, the present invention is not present by aerogel precursor body on fibrofelt
The step of gelation, therefore gel precursor solution preparation process and gelation processing step are not needed, technique is simple, eliminates big
The chemical industry equipment of amount, is not also limited by place, is greatly reduced the production cost of aeroge fibrofelt and is improved production effect
Rate, therefore it is a kind of preparation method of very promising aeroge fibrofelt.
Brief description of the drawings
Fig. 1 is a kind of flow chart of re-compounded aeroge fibrofelt preparation method provided by the invention；
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail, and example is served only for explaining
The present invention, it is not intended to limit the scope of the present invention.
In following examples using to the routine that is then well known to the skilled person unless otherwise noted of method
Method, pharmaceutical raw material used etc. is then commercially available conventional products unless otherwise noted.
As shown in figure 1, the present invention provides a kind of preparation method of re-compounded aeroge fibrofelt, it includes following step
Suddenly：
S1. solution is prepared：Aerogel powder is dissolved in formation aerogel powder solution in solvent；
S2. soak compound：Fibrofelt is immersed in the aerogel powder solution in S1, immersion treatment 1-60min is so that gas
The abundant wetting fibre felt of gel solution；Immersion treatment is specifically as follows Dipping in reactive tank, negative pressure immersion, circulation spray
Spill immersion and extruding immersion etc. those skilled in the art can thinkable immersion way, as long as can guarantee that airsetting sol solution fully soaks
Moisten fibrofelt, the purpose fully infiltrated is to make the aerogel powder in aerogel powder solution dispersed to fibrofelt
Top layer and/or inside.
S3. drying and processing:Fibrofelt after the completion of immersion treatment is taken out and is placed in drying to constant weight in drying plant, i.e.,
.
Method provided by the invention is further described below by way of instantiation.
Embodiment 1
A kind of preparation method of re-compounded aeroge fibrofelt, it comprises the following steps：
S1. solution is prepared：The aerogel powder 5g that grain diameter through screening is 5-70 μm is dissolved in 95g n-hexane solvents
Middle formation aerogel powder solution；
S2. soak compound：The aerogel powder that long generous 30mm × 60mm × 1mm glass mat is immersed in S1 is molten
In liquid, Dipping processing 10min is so that the abundant sized glass fibres felt of airsetting sol solution (can not stop movable glass fibre during immersion
Felt is tieed up to accelerate the speed that aerogel powder solution immerses glass mat)；
S3. drying and processing:Glass mat after the completion of immersion treatment is taken out to the small-sized hot-rolling for being placed in tight anti-explosion
Dried in equipment, drying temperature is 75-100 DEG C, drying time 1-5min, is dried to constant weight, produces.
Embodiment 2
A kind of preparation method of re-compounded aeroge fibrofelt, it comprises the following steps：
S1. solution is prepared：The aerogel powder 2g that grain diameter through screening is 10-20 μm is dissolved in 98g alcohol solvents
Middle formation aerogel powder solution；
S2. soak compound：The aerogel powder that long generous 30mm × 60mm × 0.5mm glass mat is immersed in S1
In solution, Dipping handles 5min so that the abundant sized glass fibres felt of airsetting sol solution (can not stop movable glass during immersion
Fibrofelt with accelerate aerogel powder solution immerse glass mat speed)；
S3. drying and processing:Glass mat after the completion of immersion treatment is taken out to the small-sized hot-rolling for being placed in tight anti-explosion
Dried in equipment, drying temperature is 75-80 DEG C, drying time 5-10min, is dried to constant weight, produces.
Embodiment 3
A kind of preparation method of re-compounded aeroge fibrofelt, it comprises the following steps：
S1. solution is prepared：It is molten that the aerogel powder 10g that grain diameter through screening is 55-70 μm is dissolved in 90g hexamethylenes
Aerogel powder solution is formed in agent；
S2. soak compound：The aerogel powder that long generous 30mm × 60mm × 3mm rock wool fibers felt is immersed in S1 is molten
In liquid, Dipping processing 40min is so that airsetting sol solution fully infiltrates rock wool fibers felt and (can not stop to move rock wool fibre during immersion
Felt is tieed up to accelerate the speed that aerogel powder solution immerses rock wool fibers felt)；
S3. drying and processing:Rock wool fibers felt after the completion of immersion treatment is taken out to the small-sized hot-rolling for being placed in tight anti-explosion
Dried in equipment, drying temperature is 100-110 DEG C, drying time 30minmin, is dried to constant weight, produces.
Embodiment 4
A kind of preparation method of re-compounded aeroge fibrofelt, it comprises the following steps：
S1. solution is prepared：The aerogel powder 5g that grain diameter through screening is 15-30 μm is dissolved in 95g volume fractions
To form aerogel powder solution in 80% ethanol water；
S2. soak compound：The aerogel powder that long generous 30mm × 60mm × 10mm polyester fiber felt is immersed in S1
In solution, Dipping processing 60min makes airsetting sol solution fully infiltrate polyester fiber felt (can not stop to move polyester fibre during immersion
Felt is tieed up to accelerate the speed that aerogel powder solution immerses polyester fiber felt)；
S3. drying and processing:Polyester fiber felt after the completion of immersion treatment is taken out to the small-sized hot-rolling for being placed in tight anti-explosion
Dried in equipment, drying temperature is 100-110 DEG C, drying time 60min, is dried to constant weight, produces.
The aeroge fibrofelt that above example 1 to 4 obtains finds itself and In-situ reaction through performance detection and actual use
The performance and using effect for the like product that method obtains approach, and can meet requirement.Method provided by the invention is especially suitable
For producing aeroge super thin fiber felt (below thickness 1mm), aeroge and fiber after ultra-thin fibrofelt easily infiltrates and dried
Felt is compound preferably, and the properties of target product and the properties of product obtained by In-situ reaction are almost just the same.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of preparation method of re-compounded aeroge fibrofelt, it is characterised in that comprise the following steps：
S1. solution is prepared：Aerogel powder is dissolved in formation aerogel powder solution in solvent；
S2. soak compound：Fibrofelt is immersed in the aerogel powder solution in S1, immersion treatment 1-60min is so that aeroge
The abundant wetting fibre felt of solution；
S3. drying and processing:Fibrofelt after the completion of immersion treatment is taken out and is dried to constant weight, is produced.
2. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 1, it is characterised in that in S1
The particle diameter of aerogel powder is 5-70 μm, and the concentration of aerogel powder solution is 0.5-10wt%.
3. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 2, it is characterised in that in S1
The particle diameter of aerogel powder is 10-20 μm, and the concentration of aerogel powder solution is 2-5wt%.
4. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 1, it is characterised in that in S1
Solvent be n-hexane, hexamethylene, ethanol, the ethanol water of methanol or volume fraction more than 80%.
5. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 1, it is characterised in that in S2
Fibrofelt be glass mat, rock wool fibers felt, ceramic fiber blanket, polyester fiber felt or non-woven fabrics.
6. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 5, it is characterised in that described
The thickness of fibrofelt is 0.05-10mm.
7. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 6, it is characterised in that described
The thickness of fibrofelt is 0.1-1mm.
8. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 1, it is characterised in that in S3
It is closed hot-rolling equipment to dry the drying plant used, and the secondary composite aerogel fiber in web-like is obtained after the completion of drying
Felt.
9. the preparation method of a kind of re-compounded aeroge fibrofelt according to claim 1, it is characterised in that in S3
Drying temperature be 60-110 DEG C, drying time 1-60min.
10. a kind of re-compounded aeroge fibrofelt, it is characterised in that pass through the system as described in any one of claim 1 to 9
Preparation Method obtains.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468208A (en) * | 2018-04-01 | 2018-08-31 | 中鸿纳米纤维技术丹阳有限公司 | A kind of silica aerogel insulation quilt of environment-friendly and green |
| CN109437831A (en) * | 2018-12-18 | 2019-03-08 | 贵州航天乌江机电设备有限责任公司 | A kind of preparation method of the compound aerosil cold insulation felt of polyester fiber |
| CN110846891A (en) * | 2019-11-26 | 2020-02-28 | 鑫创新材料科技(徐州)有限公司 | Manufacturing method and application of aerogel composite fiber |
| CN111335024A (en) * | 2020-03-04 | 2020-06-26 | 苏州格威姆新材料科技有限公司 | Preparation method of ultrathin 1000-DEG C-resistant heat-insulating flexible non-woven fabric |
| CN112301732A (en) * | 2020-10-27 | 2021-02-02 | 华电郑州机械设计研究院有限公司 | Method for preparing aerogel fiber felt through secondary compounding |
| CN112301769A (en) * | 2020-09-17 | 2021-02-02 | 南京施瓦乐新材料科技有限公司 | Flexible building template material, preparation method and application thereof |
| CN112376269A (en) * | 2020-11-17 | 2021-02-19 | 国佳新材湖北环保凝胶产业园有限公司 | Aerogel composite fiber felt structural member and preparation method thereof |
| CN113943171A (en) * | 2021-11-22 | 2022-01-18 | 中凝科技(湖北)有限公司 | Preparation method of silicon dioxide aerogel ceramic fiber felt |
| CN114804818A (en) * | 2022-05-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Low-cost aerogel composite material and preparation method thereof |
| CN115257087A (en) * | 2022-06-21 | 2022-11-01 | 欧普森(厦门)节能新材料科技有限公司 | Aerogel waterproof heat insulation felt and manufacturing method thereof |
| CN115489173A (en) * | 2022-09-26 | 2022-12-20 | 高梵(浙江)信息技术有限公司 | 3D printing aerogel down fabric and preparation method thereof |
| CN115849771A (en) * | 2023-03-01 | 2023-03-28 | 百能(天津)能源科技有限公司 | Aerogel felt and preparation method and application thereof |
| CN115852691A (en) * | 2022-12-29 | 2023-03-28 | 山东鹿优数字科技有限公司 | Thermal knitted fabric based on biological protein aerogel and preparation method thereof |
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Cited By (15)
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| CN108468208A (en) * | 2018-04-01 | 2018-08-31 | 中鸿纳米纤维技术丹阳有限公司 | A kind of silica aerogel insulation quilt of environment-friendly and green |
| CN109437831A (en) * | 2018-12-18 | 2019-03-08 | 贵州航天乌江机电设备有限责任公司 | A kind of preparation method of the compound aerosil cold insulation felt of polyester fiber |
| CN110846891A (en) * | 2019-11-26 | 2020-02-28 | 鑫创新材料科技(徐州)有限公司 | Manufacturing method and application of aerogel composite fiber |
| CN111335024A (en) * | 2020-03-04 | 2020-06-26 | 苏州格威姆新材料科技有限公司 | Preparation method of ultrathin 1000-DEG C-resistant heat-insulating flexible non-woven fabric |
| CN112301769A (en) * | 2020-09-17 | 2021-02-02 | 南京施瓦乐新材料科技有限公司 | Flexible building template material, preparation method and application thereof |
| CN112301732A (en) * | 2020-10-27 | 2021-02-02 | 华电郑州机械设计研究院有限公司 | Method for preparing aerogel fiber felt through secondary compounding |
| CN112376269A (en) * | 2020-11-17 | 2021-02-19 | 国佳新材湖北环保凝胶产业园有限公司 | Aerogel composite fiber felt structural member and preparation method thereof |
| CN113943171A (en) * | 2021-11-22 | 2022-01-18 | 中凝科技(湖北)有限公司 | Preparation method of silicon dioxide aerogel ceramic fiber felt |
| CN114804818A (en) * | 2022-05-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Low-cost aerogel composite material and preparation method thereof |
| CN114804818B (en) * | 2022-05-24 | 2023-04-11 | 巩义市泛锐熠辉复合材料有限公司 | Low-cost aerogel composite material and preparation method thereof |
| CN115257087A (en) * | 2022-06-21 | 2022-11-01 | 欧普森(厦门)节能新材料科技有限公司 | Aerogel waterproof heat insulation felt and manufacturing method thereof |
| CN115489173A (en) * | 2022-09-26 | 2022-12-20 | 高梵(浙江)信息技术有限公司 | 3D printing aerogel down fabric and preparation method thereof |
| CN115489173B (en) * | 2022-09-26 | 2023-07-04 | 高梵(浙江)信息技术有限公司 | 3D printing aerogel down fabric and preparation method thereof |
| CN115852691A (en) * | 2022-12-29 | 2023-03-28 | 山东鹿优数字科技有限公司 | Thermal knitted fabric based on biological protein aerogel and preparation method thereof |
| CN115849771A (en) * | 2023-03-01 | 2023-03-28 | 百能(天津)能源科技有限公司 | Aerogel felt and preparation method and application thereof |
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