CN101182656B - Porous fibre cloth manufacturing method - Google Patents
Porous fibre cloth manufacturing method Download PDFInfo
- Publication number
- CN101182656B CN101182656B CN2006101457077A CN200610145707A CN101182656B CN 101182656 B CN101182656 B CN 101182656B CN 2006101457077 A CN2006101457077 A CN 2006101457077A CN 200610145707 A CN200610145707 A CN 200610145707A CN 101182656 B CN101182656 B CN 101182656B
- Authority
- CN
- China
- Prior art keywords
- fibre cloth
- heat
- poriness
- treatment furnace
- oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a multi-pore fiber cloth manufacture method and comprises that acrylic oxidized fiber cloth is delivered into a heat treatment furnace in the manner of rolling to carry out the activated carbonization engineering. The heat-treatment furnace is provided with a multi-pipe reaction pipeline, into which the oxygen-containing gas and liquid can be fed. Under the operating temperature of 1010 to 1500 centigrade degrees, the multi-pore fiber cloth with the specific pore surface area (BET) maintained at 800 to 1500 m3/g is manufactured.
Description
Technical field
The present invention relates to a kind of Poriness fibre cloth manufacturing method, and particularly have high all once Poriness fibre cloth manufacturing methods of hole specific area relevant for a kind of.
Background technology
Active carbon material is widely used in people's livelihood articles for use, environmental supplies, industry and high-tech industry at present because its porous character can provide characteristics such as good adsorption, conduction, regeneration.For example be applied to chemistry, medical treatment, military protection market, make protection applications such as mouth mask, vest, breathing mask, or be used for purposes such as general textiles, water purification, wastewater treatment.
The activated carbon raw material can roughly be divided into granule activated carbon, powdered activated carbon and activated carbon fiber etc. several.Wherein granule activated carbon, powdered activated carbon are the active carbon material of traditional kenel, are to form through high temperature cabonization with raw materials such as cocoanut shell, brown coal or mud coals, and it is easy, with low cost that its raw material is obtained, but shortcoming is the impurity content height, and performance is not good.Activated carbon fiber cloth then can be divided into Lignins, phenol resin system, pitch system and polyacrylonitrile based (polyacrylonitrile; PAN) wait several.Wherein the Lignins cost of material is minimum, but its fibre machinery character is poor; Phenol resin is a cost height not only, and engineering properties is also not good; Then consequently processability is not good because of the event of engineering properties extreme difference in pitch system; Have polyacrylonitrile based only and not only have favorable mechanical character, cost is also placed in the middle, and suitable exploitation is used.
The kenel of polyacrylonitrile based activated carbon fiber raw material can be oxidized fibre long filament, the formed non-woven cloth of yarn or felt, forms the polyacrylonitrile based activated carbon fiber cloth through overactivation and carbonisation.Activation engineering general using chemical activation method or physical activation method carry out.Chemical activation method promptly is to utilize to add chemical agent (as ZnCl
2, H
3PO
4, KOH, K
2S etc.) handle oxidized fibre cloth, its advantage is that reaction temperature is low and the tar generation is low, but shortcoming is that activated carbon purity is not enough, is easy to generate noxious material, contaminative height in the technology and needs the increase washing process, causes secondary pollution on the contrary.Physically activated rule is to use oxygen-containing gas to activate, and its characteristic is that contaminative is low in the activated carbon purity height made and the technology, but shortcoming be technological temperature high power consumption and tar generation rate height.
The acrylic fibre cloth that forefathers have utilization that the fire-fighting clothing is used as activator, imports moisture carbon dioxide in one high temperature furnace and produces acrylic activated fiber cloth with activation.Yet, owing to be to utilize moisture carbon dioxide to activate engineering, need in advance carbon dioxide to be mixed with water to send into again in the high temperature furnace, therefore, except that the many programs of mixing together of need, saturated vapor contained in the carbon dioxide also is difficult to accurate control, the nano aperture skewness that causes the activation back to produce, and end product quality can't consistent situation.
Therefore, need a kind of more simple and effective activating process, solve acrylic activated fiber Bu Nami hole skewness, influence the problem of product usefulness.
Summary of the invention
Technical problem to be solved by this invention is, a kind of Poriness fibre cloth manufacturing method is provided, in order to improve the shortcoming of the finished product hole skewness that traditional Poriness fibre cloth manufacturing method makes.
For achieving the above object, the present invention proposes a kind of Poriness fibre cloth manufacturing method, be as raw material with polyacrylonitrile based oxidized fibre cloth, carry out a carbonization technique (activated carbonation process) alive, utilization has the heat-treatment furnace of multitube reaction pipeline, respectively activated gas and/or activated liquid are fed in the processing stove via different pipelines, and polyacrylonitrile based oxidized fibre cloth is conveyed into roller (roller) device handles in the stove, with Temperature Treatment a period of time between 1010 ℃～1500 ℃, obtain the porous fiber cloth that hole distribution homogeneous and specific area (BET) maintain 800～1500 square centimeters/g (meters squared per gram), applicable to actual volume production.
According to embodiments of the invention, activated gas can be oxygen containing gas, for example oxygen, carbon dioxide, carbon monoxide, steam, air or contain the mixture of above-mentioned gas.Activated liquid can be oxygen containing liquid, for example pure water, running water, hydrogen peroxide, acidic electrolytic water or contain the mixture of aforesaid liquid.
In order to make constitutive characteristic of the present invention, method of operating, purpose and advantage be more prone to understand, so, embodiments of the invention are described in hereinafter cooperating icon and character narrate.
Description of drawings
Fig. 1 is the process schematic representation of the preparation porous fiber cloth of one embodiment of the invention;
Fig. 2 utilizes all test results once of the hole of porous fiber cloth under different sample lengths that method of the present invention produces;
Fig. 3 is the BET change curve of porous fiber cloth under different sample lengths that utilizes method of the present invention to produce.
Wherein Reference numeral is:
100: heat-treatment furnace 110: the reaction pipeline
111: activated gas 120: the reaction pipeline
121: activated liquid 130: oxidized fibre cloth
140: roller device 150: porous fiber cloth
160: dashed region
The specific embodiment
Please refer to Fig. 1, it illustrates the process schematic representation according to the preparation porous fiber cloth of one embodiment of the invention.
The equipment of preparation porous fiber cloth comprises a heat-treatment furnace 100, have a plurality of reaction pipelines and adopt multitubes to be distributed in each zone in the stove, activator can gaseous state or liquid state directly feed in heat-treatment furnaces 100 via these reaction pipelines.The arrival end of heat-treatment furnace 100 and the port of export with inert gas as isolated gas.
According to one embodiment of the invention, can only import the activator of liquid form in the heat-treatment furnace 100.For example: pure water, running water, hydrogen peroxide, acidic electrolytic water or contain the oxygen-bearing liquids such as mixture of aforesaid liquid can feed the heat-treatment furnaces 100 from a plurality of reaction pipelines simultaneously.
According to another embodiment of the present invention, can only import the activator of gaseous form in the heat-treatment furnace 100.For example: oxygen, carbon dioxide, carbon monoxide, steam, air or contain the oxygen-containing gas such as mixture of above-mentioned gas can feed in the heat-treatment furnace 100 from a plurality of reaction tubes road simultaneously.
According to another embodiment of the present invention, can import the activator of gaseous state and liquid form in the heat-treatment furnace 100 simultaneously.For example, reaction pipeline 110 can be in order to feed activated gas 111, for example oxygen, carbon dioxide, carbon monoxide, steam, air or contain the oxygen-containing gas such as mixture of above-mentioned gas; Reaction pipeline 120 can be in order to feed activated liquid 121, for example pure water, running water, hydrogen peroxide, acidic electrolytic water or contain the oxygen-bearing liquids such as mixture of aforesaid liquid.It should be noted that reaction pipeline 110 and quantity, external form and the configuration mode of reaction pipeline 120 in the 1st figure only are illustration, heat-treatment furnace 100 can be provided with a plurality of reaction pipelines according to actual needs, uses and feeds required activated liquid and gas simultaneously.
In addition,, therefore do not need gas and liquid are pre-mixed, therefore do not need gas mixer, reduce the cost of operation and equipment relatively because activated gas 111 and activated liquid 121 are to feed heat-treatment furnace 100 respectively.
According to one embodiment of the invention, the raw material of preparation porous fiber cloth is a polyacrylonitrile based oxidized fibre cloth 130, can utilize plural groups roller device 140 and along the direction of arrow raw material is sent in the heat-treatment furnace 100, carries out the carbonization engineering of living.
Heat-treatment furnace 100 need be heated between 1010 ℃～1500 ℃, and area heated is shown in the dashed region 160 of Fig. 1, and the reaction time can be 1 minute to 60 minutes.Because when carbonization engineering alive of the present invention is carried out, activated gas 111 and activated liquid 121 can distinguish autoreaction pipeline 110 and reaction pipeline 120 feeds heat-treatment furnace 100, therefore can accurately control the concentration and the flow of gas and liquid, therefore the contained nano aperture uniformity of the porous fiber cloth prepared 150 is than the traditional handicraft height, the porous fiber cloth that utilizes method of the present invention to make can guarantee that the raw material that continous mode sends into is all consistent in the hole uniformity of different length position, and its specific area (BET) can maintain 800～1500 meters squared per gram.
Please refer to Fig. 2 and Fig. 3, for the hole that the porous fiber that utilizes method of the present invention to produce is distributed under the different sample lengths was all once tested.With identical speed of production, under 1010 ℃, 1050 ℃, 1150 ℃, 1200 ℃ carburizing temperature condition alive, feed water effect in 5 minutes and obtain porous fiber cloth respectively.Get the porous fiber cloth sample of 30～50 centimeter length in the 100th meter, 1000 meters and 5000m strong point again, be cut into 5～10 centimetres width respectively, method with ASTM D3663-03 standard, utilize specific area-micropore hole analyzer (Micromeritics ASAP2020) to analyze, the BET that observes the hole that different phase is produced on porous fiber cloth surface in the technology changes.
The result shows, the sample of under each temperature conditions, producing, the BET at its different length place all can maintain between 900～1200 meters squared per gram, the hole distributional difference of the finished product that the porous fiber cloth that display application method of the present invention is produced is produced in whole technology from the beginning to the end is minimum, hole uniformity height.Also hence one can see that, and the method for preparing porous fiber cloth of the present invention not only is applicable to the continous mode volume production, more can accurately control end product quality, produces all once high porous fiber cloth of hole.
By the invention described above preferred embodiment as can be known, use the present invention and have following advantage:
At first, the present invention's the method for preparing porous fiber cloth is to be used in the activation processing stove of high temperature to import activator, can carry out the carbonization and the activate technology of polyacrylonitrile based carbon oxide fiber cloth simultaneously, significantly reduces the process time, increases production capacity.And, need not use chemical agent in the carbonization engineering alive of the present invention, utilize oxygen-containing gas and/or oxygen-bearing liquid as activator, raw material is obtained and non-secondary pollution easily.
In addition, because activator can be fed respectively in the carbide furnace alive by different pipelines, therefore do not need the using gases blender, relative reduction is the cost of equipment just.
Moreover, it also is the most important, heat-treatment furnace reaction gas pipeline of the present invention, be to adopt multitube to be distributed in each zone in the stove, except that the flow and concentration that can accurately control gas and liquid, (need not be pre-mixed), more can fully reaction of each zone after activator imports respectively on polyacrylonitrile based oxidized fibre cloth surface, make the nano aperture of using the porous fiber cloth that method of the present invention produces be uniformly distributed in porous fiber cloth surface.Because porous fiber cloth is continous mode production, the quality control when therefore method of the present invention can be kept volume production makes end product quality have good uniformity, can be applicable to actual volume production.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (9)
1. a Poriness fibre cloth manufacturing method is characterized in that, comprises:
One polyacrylonitrile based oxidized fibre cloth is provided;
One heat-treatment furnace is provided, has a plurality of reaction pipelines;
This polyacrylonitrile based oxidized fibre cloth is passed through this heat-treatment furnace; And
Carry out a carbonization engineering alive, one oxygen-containing gas and an oxygen-bearing liquid are fed these a plurality of reaction pipeline a period of times of this heat-treatment furnace respectively, wherein this oxygen-bearing liquid is pure water, running water, hydrogen peroxide, acidic electrolytic water or above-mentioned combination arbitrarily,, under 1010 ℃～1500 ℃ environment, prepare and have high all porous fiber cloth of distributing of hole once in operating temperature.
2. Poriness fibre cloth manufacturing method according to claim 1 is characterized in that, wherein should height all once hole specific area maintain between 800～1500 meters squared per gram.
3. Poriness fibre cloth manufacturing method according to claim 1 is characterized in that, wherein this polyacrylonitrile based oxidized fibre cloth is to utilize at least one group of roller to pass through this heat-treatment furnace in the mode of batching.
4. Poriness fibre cloth manufacturing method according to claim 1 is characterized in that, wherein this oxygen-containing gas is oxygen, carbon dioxide, carbon monoxide, steam, air or above-mentioned combination arbitrarily.
5. Poriness fibre cloth manufacturing method according to claim 1 is characterized in that, wherein the reaction time of this work carbonization treatment is between 1 minute～60 minutes.
6. a Poriness fibre cloth manufacturing method is characterized in that, comprises:
One polyacrylonitrile based oxidized fibre cloth is provided;
One heat-treatment furnace is provided, has a plurality of reaction pipelines;
This polyacrylonitrile based oxidized fibre cloth is passed through this heat-treatment furnace; And
Carry out a carbonization engineering alive, one oxygen-bearing liquid is fed these a plurality of reaction pipeline a period of times of this heat-treatment furnace via those reaction pipelines, wherein this oxygen-bearing liquid is pure water, running water, hydrogen peroxide, acidic electrolytic water or above-mentioned combination arbitrarily, prepares under 1010 ℃～1500 ℃ environment in operating temperature to have high all porous fiber cloth of hole distribution once.
7. Poriness fibre cloth manufacturing method according to claim 7 is characterized in that, wherein should height all once hole specific area maintain between 800～1500 meters squared per gram.
8. Poriness fibre cloth manufacturing method according to claim 7 is characterized in that, wherein this polyacrylonitrile based oxidized fibre cloth is to utilize at least one group of roller to pass through this heat-treatment furnace in the mode of batching.
9. Poriness fibre cloth manufacturing method according to claim 7 is characterized in that, wherein the reaction time of this work carbonization treatment is between 1 minute～60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101457077A CN101182656B (en) | 2006-11-14 | 2006-11-14 | Porous fibre cloth manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101457077A CN101182656B (en) | 2006-11-14 | 2006-11-14 | Porous fibre cloth manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101182656A CN101182656A (en) | 2008-05-21 |
| CN101182656B true CN101182656B (en) | 2010-11-17 |
Family
ID=39448076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101457077A Expired - Fee Related CN101182656B (en) | 2006-11-14 | 2006-11-14 | Porous fibre cloth manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101182656B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441288A (en) * | 2013-09-16 | 2013-12-11 | 大连理工高邮研究院有限公司 | Method for producing carbon felt electrode material for flow battery |
| CN105762369A (en) * | 2014-12-16 | 2016-07-13 | 中国科学院大连化学物理研究所 | All-vanadium flow battery porous carbon fiber felt electrode material and preparation and application thereof |
| CN104499097A (en) * | 2014-12-23 | 2015-04-08 | 清华大学 | Method for preparing active carbon fibers by utilizing hydrogen peroxide intensified water vapor to activate |
| CN105780364B (en) * | 2016-02-26 | 2018-03-16 | 浙江大学 | A kind of method for preparing ultramicropore flexibility carbon cloth and products thereof and application |
| CN106350956A (en) * | 2016-08-26 | 2017-01-25 | 明光市瑞洁日用品有限公司 | Method for preparing cleaning cloth with strong water absorption property |
| CN111128562A (en) * | 2020-01-07 | 2020-05-08 | 广东电网有限责任公司电力科学研究院 | Activated carbon fiber paper and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354292A (en) * | 2001-12-10 | 2002-06-19 | 梁继选 | Continuous preparation method of active carbon fibre matting and cloth |
-
2006
- 2006-11-14 CN CN2006101457077A patent/CN101182656B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354292A (en) * | 2001-12-10 | 2002-06-19 | 梁继选 | Continuous preparation method of active carbon fibre matting and cloth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101182656A (en) | 2008-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101182656B (en) | Porous fibre cloth manufacturing method | |
| CN104229789B (en) | A kind of preparation method of nitrogen-doped graphene | |
| CN106881059A (en) | A kind of preparation method of iron/carbon composite | |
| CN105772708A (en) | Method for using biomass waste for preparing nitrogen-doped carbon nanotube coated metal particle composite material | |
| CN106241803B (en) | A method of active carbon being made using waste tyre pyrolytic carbon black | |
| CN108906052A (en) | zero-valent iron/carbon material catalyst and preparation method thereof | |
| CN104499097A (en) | Method for preparing active carbon fibers by utilizing hydrogen peroxide intensified water vapor to activate | |
| CN104891469B (en) | Method and device for carboxylation modification of carbon nano-material by ozone and use thereof | |
| CN1935641B (en) | Method for preparing carbon molecular sieve by intercalation of petrol coke | |
| CN105562050A (en) | Porous graphene-like structure doped carbon material as well as preparation method and application of porous graphene-like structure doped carbon material | |
| CN107029694A (en) | One kind doping carbon material and preparation method thereof | |
| CN105329883A (en) | Porous graphene preparation method | |
| CN106032272A (en) | An amino-enhanced graphene membrane, a nitrogen-doped graphene membrane and preparing methods thereof | |
| CN109574014B (en) | B4C fiber felt and preparation method thereof | |
| CN105314617A (en) | Charcoal molecular sieve preparation method | |
| CN107640768B (en) | Preparation method of nitrogen-rich modified desulfurization adsorption material | |
| TWI334891B (en) | Method for perparing porous fabrics | |
| CN111744523A (en) | Nitrogen-doped carbon nanosheet, and preparation method and application thereof | |
| CN103011132B (en) | Preparation method of monodisperse carbon nano bowl | |
| CN108946727A (en) | The method for preparing active carbon using microalgae-alginate complex | |
| Wu et al. | Hydrothermal co-doping of boron and phosphorus into porous carbons prepared from petroleum coke to improve oxidation resistance | |
| US7790136B2 (en) | Method for preparing porous fabrics | |
| CN103011153B (en) | Preparation method for graphene sol and graphene | |
| CN101698479B (en) | Preparation method of carbon ball with big size | |
| RU2008141330A (en) | METHOD FOR PRODUCING CARBON METAL-CONTAINING NANOSTRUCTURES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20191114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |