CN108176256A - A kind of high temperature resistant composite nano fiber filters membrane preparation method - Google Patents
A kind of high temperature resistant composite nano fiber filters membrane preparation method Download PDFInfo
- Publication number
- CN108176256A CN108176256A CN201711493588.9A CN201711493588A CN108176256A CN 108176256 A CN108176256 A CN 108176256A CN 201711493588 A CN201711493588 A CN 201711493588A CN 108176256 A CN108176256 A CN 108176256A
- Authority
- CN
- China
- Prior art keywords
- temperature resistant
- prepared
- high temperature
- composite nano
- solution
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
- B01D71/025—Aluminium oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/52—Polyethers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/39—Electrospinning
Abstract
A kind of high temperature resistant composite nano fiber filters membrane preparation method, is related to field of air filtration.Include the following steps：1) macromolecule polymer solution is prepared；2) high polymer fiber base material is prepared；3) Al is prepared2O3Precursors of Fibers solution；4) Al is prepared using electrostatic spinning apparatus2O3Fibrous layer；5) SiC Precursors of Fibers solution is prepared；6) SiC fibrous layers are prepared；7) step 3) and step 4) are repeated, prepares upper strata Al2O3High-temperature resistant fiber layer；8) step 1) and step 2) are repeated, prepares upper strata high molecular polymer base material；9) high temperature resistant composite nano fiber filter membrane is prepared.The mechanical performance of filter membrane is improved by the molding of the composite stereo of organic high temperature-resistant nano fibrous membrane and inorganic ceramic nano fibrous membrane, prolong the service life, and the high temperature resistance of effective reinforcing fiber film, promote application of the electrostatic spinning technique in high-temperature flue gas purification filtration art.
Description
Technical field
The present invention relates to field of air filtration, and film preparation side is filtered more particularly to a kind of high temperature resistant composite nano fiber
Method.
Background technology
With the high speed development of industrial technology, the heavy industry such as material, metallurgy, chemical industry, electric power field generates a large amount of high temperature cigarettes
Gas forms the finely ground particles being largely suspended in the air, and is the main source of air pollution, seriously affects people’s lives matter
Amount.It develops a kind of air-filtering membrane suitable for high-temperature flue gas and has become the research emphasis that Current air pollution administers field.
Electrostatic spinning sprays manufacturing technology as easy micro-nano structure, is compatible with its simple for process, easy to operate, material
The advantages that property is good becomes the nanofiber manufacturing technology of mainstream.Electrospun nano-fibers material source is extensive, is easy to carry out
Surface is modified, and electro spinning nanometer fiber membrane good penetrability, aperture is small, hole connectivity is good, is more easy to and organic gas and sub-micron
Grade particle combines, and plays the role of good adsorbing separation.At present, Electrospun nano-fibers filtering material has been successfully applied to
Highly effective air purification air field, multiple research institutions and research team the experiment proved that nanofiber for organic gas and micro-nano powder
Dirt has good catharsis (Liu C, Hsu P C, Lee H W, et al.Transparent air filter for
high-efficiency PM2.5capture[J].Nature communications,2015,6:6205)。
As a kind of new material, inorganic ceramic fiber such as Al2O3Fiber, SiC fibers etc. have been widely used in high temperature
Filed of flue gas purification.Compared with traditional filtrate, the specific surface of fiber filtering is big, and aperture is small, and porosity is high, and small particle is polluted
Composition granule has better rejection effect.And inorganic ceramic has good mechanical strength, superior chemical stability and good
Good high temperature resistance (preparation of Liu Wei, Cui Yuanshan, Jin Jiang high-temperature flue gas purification ceramic fiber tubes and performance [J] environment
Engineering journal, 2012,6 (9):3248-3252).At present, the preparation method of inorganic ceramic fiber mainly includes solvent-thermal process
Method, chemical vapour deposition technique, extrusion, super fine sintering process, colloidal sol --- gel method etc., but the presence of these methods is set
Standby complicated, the problems such as cost is higher, and the fibre diameter prepared is larger, stick to each other easily occurs, the problems such as uniformity is poor, limit
Its application in the filtering of high-temperature flue gas finely ground particles is made.
Inorganic ceramic nano fibrous membrane, which is prepared, using electrostatic spinning technique has become novel fire resistant air-filtering membrane
Novel means, but there is the shortcomings that film forming bad mechanical property, and the material that high temperature resistance is good in single inorganic ceramic tunica fibrosa
The cost of material of material such as SiC fibers is higher.
Invention content
The purpose of the present invention is to provide can improve the mechanical performance of filter membrane, prolong the service life, reinforcing fiber film it is resistance to
A kind of high temperature resistant composite nano fiber filtering membrane preparation method of high-temperature behavior.
The present invention includes the following steps：
1) macromolecule polymer solution is prepared；
In step 1), the specific method for preparing macromolecule polymer solution can be：Fire resistant polymer is polymerize
Object powder is dissolved in organic solvent, and after stirring, secure satisfactory grades sub- polymer solution；The high molecular polymer powder is included but not
It is limited to the fire resistant polymers polymer such as PVDF, PPS, PES, PTFE.
2) high polymer fiber base material is prepared；
It is described to prepare high polymer fiber base material in step 2), electrostatic spinning apparatus, specific method can be used
For：High voltage electric field is formed between spinning nozzle and collecting board using high voltage power supply, high-voltage power cathode is connected with spinning nozzle,
Plate earthing is collected in cathode connection；Macromolecule polymer solution is injected into spinning nozzle, after liquid supply speed stabilization, opens high pressure
Power supply generates polymer solution stretching action and forms jet stream injection, volatilizees by solvent, jet stream curing, is obtained on collecting board
High molecular polymer nano fibrous membrane, the base material as composite filtering film；
Single nozzle, more nozzles, needleless nozzle, the needleless nozzle can be used in spinning nozzle in the electrostatic spinning apparatus
The needleless nozzle such as line electrode, drum electrode, threaded rod electrode can be used；The high voltage power supply can be DC power supply or AC power；
The nozzle is adjustable to 10~30cm of distance between plates is collected；
The method for preparing high polymer fiber base material can be the fibers preparation side such as solution electrospinning or melting electrospinning
Method.
3) Al is prepared2O3Precursors of Fibers solution；
In step 3), the preparation Al2O3The specific method of Precursors of Fibers solution can be：Aluminium salt is dissolved in acetone
As the precursor solution of aluminium, and the ethanol solution containing PVP is added in, using mixed solution as preparation Al2O3Before nanofiber
Drive liquid solution；The aluminium salt includes but not limited to aluminium acetylacetonate, aluminum acetate, aluminum nitrate etc.；
4) Al is prepared using electrostatic spinning apparatus2O3Fibrous layer；
It is described that Al is prepared using electrostatic spinning apparatus in step 4)2O3The specific method of fibrous layer can be：Pass through step
2) the Advance in Manufacture of Nano-fibers by Electrospinning film, and 1~6h of heat treatment, polymer are carried out under the conditions of 1000~1500 DEG C
It decomposes, Al is formed through high-temperature oxydation2O3Fibrous layer；
5) SiC Precursors of Fibers solution is prepared；
In step 5), it is described prepare SiC Precursors of Fibers solution specific method can be：By Polycarbosilane (PCS), gather
Nitrogen silane or ethyl orthosilicate are dissolved in formation hydrophobicity micelle, PVP in toluene and are dissolved in the water, and two kinds of solution mixing are as system
Standby high temperature resistant Al2O3The precursor solution of nanofiber；
6) SiC fibrous layers are prepared；
In step 6), electrostatic spinning apparatus can be used in the preparation SiC fibrous layers, prepares the specific side of SiC fibrous layers
Method can be：By Advance in Manufacture of Nano-fibers by Electrospinning film step 2) described, it is non-fusible that 6h progress is aoxidized under the conditions of 190 DEG C
Processing, then carries out heat treatment 1~6h under the conditions of 1000~1500 DEG C, and PCS is decomposed to obtain SiC nanofibers, be obtained super resistance to
High Temperature SiC layers of nanofibers；
7) step 3) and step 4) are repeated, prepares upper strata Al2O3High-temperature resistant fiber layer；
8) step 1) and step 2) are repeated, prepares upper strata high molecular polymer base material；
9) high temperature resistant composite nano fiber filter membrane is prepared.
In step 9), the specific method of the preparation high temperature resistant composite nano fiber filter membrane can be：To step 2),
4), 6), 7), 8) obtained by nano fibrous membrane stand for 24 hours at room temperature after hot-pressing processing is carried out under the conditions of 100~150 DEG C,
Combined strength bination is improved, obtains high temperature resistant composite nano fiber filter membrane；Each tunic thickness of composite nano fiber filter membrane can root
Factually high temperature resistant demand in border is adjusted.
Filter membrane complex method can be used after 5 layers of tunica fibrosa form a film respectively carry out hot pressing it is compound, also can be to Al2O3Before/SiC
It drives after body fiber first carries out Compound Heat Treatment and obtains high-temperature resistant fiber layer, then compound with the progress hot pressing of organic polymer base material；Institute
It can be PVDF-Al to state composite membrane2O3-SiC-Al2O3- PVDF structures or PVDF-SiC-Al2O3- SiC-PVDF structures, and
And different fiber layer thicknesses can be adjusted according to high temperature resistant demand.
The present invention provides a kind of including high molecular polymer base material, Al2O3High-temperature resistant fiber layer, SiC thermostable fibrous layers
High temperature resistant composite nano fiber filter membrane preparation method, wherein Al2O3As the material of main part of high temperature resistant filter membrane, and SiC
The introducing of thermostable fibrous layer can further improve the high-temperature resistant result of filter membrane, can be by Electrospun nano-fibers filter membrane
Application field extend to the fields such as high-temperature flue gas purification.
The present invention is molded by the composite stereo of organic high temperature-resistant nano fibrous membrane and inorganic ceramic nano fibrous membrane and improved
The mechanical performance of filter membrane, prolongs the service life, and the effectively high temperature resistance of reinforcing fiber film, and electrostatic spinning technique is promoted to exist
The application of high-temperature flue gas purification filtration art.
Description of the drawings
Fig. 1 is PVDF-Al2O3-SiC-Al2O3- PVDF composite nano-fiber membrane schematic diagrames.
Fig. 2 is Al2O3-SiC-Al2O3Complex fire resistant layers of nanofibers schematic diagram.
Fig. 3 is PVDF-SiC-Al2O3- SiC-PVDF composite nano-fiber membrane schematic diagrames.
Fig. 4 is SiC-Al2O3- SiC complex fire resistant layers of nanofibers schematic diagrames.
Fig. 5 is PVDF high molecular polymer base materials SEM figures prepared by electrostatic spinning.
Fig. 6 is Al prepared by electrostatic spinning2O3High-temperature resistant fiber layer SEM schemes.
Fig. 7 is SiC thermostable fibrous layers SEM figures prepared by electrostatic spinning.
1.PVDF high molecular polymers base material in figure；2.Al2O3High-temperature resistant fiber layer；3.SiC thermostable fibrous layers；
4.Al2O3High-temperature resistant fiber layer；5.PVDF high molecular polymer base materials；6.PVDF high molecular polymer base materials；The super resistance to height of 7.SiC
Warm fibrous layer；8.Al2O3High-temperature resistant fiber layer；9.SiC thermostable fibrous layers；10.PVDF high molecular polymer base materials.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1
1st, PVDF high molecular polymers nano fibrous membrane 1 is prepared, as shown in figure 5, the base material as composite filtering film；
2nd, by Al2O3Precursor fibre carries out 1~6h of heat treatment under the conditions of 1000~1500 DEG C, and polymer decomposes, through height
Temperature oxidation forms Al2O3Fibrous layer 2, as shown in Figure 6；
The 3rd, SiC precursor fibres under the conditions of 190 DEG C are aoxidized to 6h carry out cure treatment, later at 1000~1500 DEG C
Under the conditions of carry out heat treatment 1~6h, PCS decomposes to obtain SiC nanofibers, thermostable SiC layers of nanofibers 3 is obtained, such as Fig. 7
It is shown；
4th, by Al2O3Precursor fibre carries out 1~6h of heat treatment under the conditions of 1000~1500 DEG C, and polymer decomposes, through height
Temperature oxidation forms Al2O3Fibrous layer 4；
5th, PVDF high molecular polymers nano fibrous membrane 5, the base material as composite filtering film are prepared；
6th, after 5 layers of nano fibrous membrane obtained by preceding step are stood for 24 hours at room temperature under the conditions of 100~150 DEG C into
Row hot-pressing processing improves combined strength bination, obtains composite nano-fiber membrane, as shown in Figure 1.
Embodiment 2
1st, PVDF high molecular polymers nano fibrous membrane 1, the base material as composite filtering film are prepared；
The 2nd, SiC precursor fibres under the conditions of 190 DEG C are aoxidized to 6h carry out cure treatment；
3rd, by Al2O3Precursor fibre 2, SiC precursor fibres 3, Al2O3After precursor fibre 4 is stood for 24 hours at room temperature
Hot-pressing processing is carried out under the conditions of 100~150 DEG C, carries out 1~6h of heat treatment under the conditions of 1000~1500 DEG C later, is passed through
The processes such as polymer decomposition, high-temperature oxydation, obtain complex fire resistant Al2O3/ SiC fibrous layers, as shown in Figure 2；
4th, PVDF high molecular polymers nano fibrous membrane 5, the base material as composite filtering film are prepared；
5th, after 3 layers of nano fibrous membrane obtained by preceding step are stood for 24 hours at room temperature under the conditions of 100~150 DEG C into
Row hot-pressing processing improves combined strength bination, obtains composite nano-fiber membrane, as shown in Figure 1.
Embodiment 3
1st, PVDF high molecular polymers nano fibrous membrane 6, the base material as composite filtering film are prepared；
The 2nd, SiC precursor fibres under the conditions of 190 DEG C are aoxidized to 6h carry out cure treatment, later at 1000~1500 DEG C
Under the conditions of carry out heat treatment 1~6h, PCS decomposes to obtain SiC nanofibers, obtains thermostable SiC layers of nanofibers 7；
3rd, by Al2O3Precursor fibre carries out 1~6h of heat treatment under the conditions of 1000~1500 DEG C, and polymer decomposes, through height
Temperature oxidation forms Al2O3Fibrous layer 8；
The 4th, SiC precursor fibres under the conditions of 190 DEG C are aoxidized to 6h carry out cure treatment, later at 1000~1500 DEG C
Under the conditions of carry out heat treatment 1~6h, PCS decomposes to obtain SiC nanofibers, obtains thermostable SiC layers of nanofibers 9；
5th, PVDF high molecular polymers nano fibrous membrane 10, the base material as composite filtering film are prepared；
6th, after 5 layers of nano fibrous membrane obtained by preceding step are stood for 24 hours at room temperature under the conditions of 100~150 DEG C into
Row hot-pressing processing improves combined strength bination, obtains composite nano-fiber membrane, as shown in Figure 3.
Embodiment 4
1st, PVDF high molecular polymers nano fibrous membrane 6, the base material as composite filtering film are prepared；
The 2nd, SiC precursor fibres under the conditions of 190 DEG C are aoxidized to 6h carry out cure treatment；
3rd, by SiC precursor fibres 7, Al2O3Precursor fibre 8, SiC precursor fibres 9 stand for 24 hours at room temperature after
Hot-pressing processing is carried out under the conditions of 100~150 DEG C, carries out 1~6h of heat treatment under the conditions of 1000~1500 DEG C later, by poly-
The processes such as object decomposition, high-temperature oxydation are closed, obtain complex fire resistant SiC/Al2O3Fibrous layer, as shown in Figure 4；
4th, PVDF high molecular polymers nano fibrous membrane 10, the base material as composite filtering film are prepared；
5th, after 3 layers of nano fibrous membrane obtained by preceding step are stood for 24 hours at room temperature under the conditions of 100~150 DEG C into
Row hot-pressing processing improves combined strength bination, obtains composite nano-fiber membrane, as shown in Figure 3.
Claims (10)
1. a kind of high temperature resistant composite nano fiber filters membrane preparation method, it is characterised in that includes the following steps：
1) macromolecule polymer solution is prepared；
2) high polymer fiber base material is prepared；
3) Al is prepared2O3Precursors of Fibers solution；
4) Al is prepared using electrostatic spinning apparatus2O3Fibrous layer；
5) SiC Precursors of Fibers solution is prepared；
6) SiC fibrous layers are prepared；
7) step 3) and step 4) are repeated, prepares upper strata Al2O3High-temperature resistant fiber layer；
8) step 1) and step 2) are repeated, prepares upper strata high molecular polymer base material；
9) high temperature resistant composite nano fiber filter membrane is prepared.
2. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 1)
In, it is described prepare macromolecule polymer solution specific method be：Fire resistant polymer polymer powder is dissolved in organic molten
In agent, after stirring, secure satisfactory grades sub- polymer solution；The high molecular polymer powder include but not limited to PVDF, PPS, PES,
The fire resistant polymers polymer such as PTFE.
3. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 2)
In, described to prepare high polymer fiber base material, using electrostatic spinning apparatus, specific method is：It is being spun using high voltage power supply
High voltage electric field is formed between silk nozzle and collecting board, high-voltage power cathode is connected with spinning nozzle, and plate earthing is collected in cathode connection；
Macromolecule polymer solution is injected into spinning nozzle, after liquid supply speed stabilization, high voltage power supply is opened and polymer solution is produced
Raw stretching action forms jet stream injection, volatilizees by solvent, jet stream curing, high molecular polymer Nanowire is obtained on collecting board
Tie up film, the base material as composite filtering film.
4. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 2)
In, using single nozzle, more nozzles, needleless nozzle, the needleless nozzle can be used the spinning nozzle in the electrostatic spinning apparatus
Line electrode, drum electrode, threaded rod electrode；The high voltage power supply can be DC power supply or AC power；The nozzle is to collecting board
Between 10~30cm of distance it is adjustable.
5. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 2)
In, the method for preparing high polymer fiber base material is solution electrospinning or melting electrospinning fibre preparation method.
6. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 3)
In, the preparation Al2O3The specific method of Precursors of Fibers solution is：Aluminium salt is dissolved in acetone as the precursor solution of aluminium,
And the ethanol solution containing PVP is added in, using mixed solution as preparation Al2O3The precursor solution of nanofiber；The aluminium salt packet
It includes but is not limited to aluminium acetylacetonate, aluminum acetate, aluminum nitrate.
7. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 4)
In, it is described that Al is prepared using electrostatic spinning apparatus2O3The specific method of fibrous layer is：Pass through electrospinning process step 2) described
Nano fibrous membrane is prepared, and 1~6h of heat treatment is carried out under the conditions of 1000~1500 DEG C, polymer decomposes, through high-temperature oxydation shape
Into Al2O3Fibrous layer.
8. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 5)
In, it is described prepare SiC Precursors of Fibers solution specific method be：Polycarbosilane, polysilazane or ethyl orthosilicate are dissolved
Hydrophobicity micelle is formed in toluene, PVP is dissolved in the water, and two kinds of solution mixing are as preparation high temperature resistant Al2O3Nanofiber
Precursor solution.
9. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 6)
In, using electrostatic spinning apparatus, the specific method for preparing SiC fibrous layers is the preparation SiC fibrous layers：By step 2) Suo Shu
Advance in Manufacture of Nano-fibers by Electrospinning film aoxidizes 6h progress cure treatments, then 1000~1500 under the conditions of 190 DEG C
Heat treatment 1~6h is carried out under the conditions of DEG C, PCS decomposes to obtain SiC nanofibers, obtains thermostable SiC layers of nanofibers.
10. a kind of high temperature resistant composite nano fiber filtering membrane preparation method as described in claim 1, it is characterised in that in step 9)
In, the specific method of the preparation high temperature resistant composite nano fiber filter membrane is：To step 2), 4), 6), 7), 8) obtained by receive
Rice tunica fibrosa carries out hot-pressing processing after standing for 24 hours at room temperature under the conditions of 100~150 DEG C, improves combined strength bination, obtains resistance to height
Warm composite nano fiber filter membrane；Each tunic thickness of composite nano fiber filter membrane can be adjusted according to practical high temperature resistant demand
Section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711493588.9A CN108176256B (en) | 2017-12-30 | 2017-12-30 | Preparation method of high-temperature-resistant composite nanofiber filtering membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711493588.9A CN108176256B (en) | 2017-12-30 | 2017-12-30 | Preparation method of high-temperature-resistant composite nanofiber filtering membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108176256A true CN108176256A (en) | 2018-06-19 |
| CN108176256B CN108176256B (en) | 2020-05-29 |
Family
ID=62549504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711493588.9A Active CN108176256B (en) | 2017-12-30 | 2017-12-30 | Preparation method of high-temperature-resistant composite nanofiber filtering membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108176256B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621750A (en) * | 2019-01-07 | 2019-04-16 | 浙江净膜环保有限责任公司 | The two-sided covering material of polytetrafluoroethylene (PTFE) |
| CN111905573A (en) * | 2020-07-16 | 2020-11-10 | 北京纳视达科技有限公司 | Carbon nano composite filter membrane and preparation method and protection device thereof |
| CN113041862A (en) * | 2021-04-02 | 2021-06-29 | 上海洁晟环保科技有限公司 | Composite membrane material, preparation method thereof, filtering membrane and storage device |
| CN113117434A (en) * | 2019-12-30 | 2021-07-16 | 西安工程大学 | Preparation method of flexible reticular vein structure ceramic nanofiber ultrahigh-temperature filtering membrane |
| CN114050053A (en) * | 2021-11-16 | 2022-02-15 | 莫纶(珠海)新材料科技有限公司 | Preparation method of flexible ceramic film capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112183A1 (en) * | 2003-06-17 | 2004-12-23 | Samshin Creation Co., Ltd. | A complex membrane for electrochemical device, manufacturing method and electrochemical device having the same |
| CN1739959A (en) * | 2005-07-20 | 2006-03-01 | 同济大学 | A kind of interlayer composite material and preparation method thereof |
| CN106541683A (en) * | 2016-11-01 | 2017-03-29 | 东莞巨微新材料科技有限公司 | A kind of preparation method of the multilayered structure nano-fiber composite film filtered for particulate in air |
-
2017
- 2017-12-30 CN CN201711493588.9A patent/CN108176256B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112183A1 (en) * | 2003-06-17 | 2004-12-23 | Samshin Creation Co., Ltd. | A complex membrane for electrochemical device, manufacturing method and electrochemical device having the same |
| CN1739959A (en) * | 2005-07-20 | 2006-03-01 | 同济大学 | A kind of interlayer composite material and preparation method thereof |
| CN106541683A (en) * | 2016-11-01 | 2017-03-29 | 东莞巨微新材料科技有限公司 | A kind of preparation method of the multilayered structure nano-fiber composite film filtered for particulate in air |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621750A (en) * | 2019-01-07 | 2019-04-16 | 浙江净膜环保有限责任公司 | The two-sided covering material of polytetrafluoroethylene (PTFE) |
| CN113117434A (en) * | 2019-12-30 | 2021-07-16 | 西安工程大学 | Preparation method of flexible reticular vein structure ceramic nanofiber ultrahigh-temperature filtering membrane |
| CN111905573A (en) * | 2020-07-16 | 2020-11-10 | 北京纳视达科技有限公司 | Carbon nano composite filter membrane and preparation method and protection device thereof |
| CN111905573B (en) * | 2020-07-16 | 2022-04-26 | 北京纳视达科技有限公司 | Carbon nano composite filter membrane and preparation method and protection device thereof |
| CN113041862A (en) * | 2021-04-02 | 2021-06-29 | 上海洁晟环保科技有限公司 | Composite membrane material, preparation method thereof, filtering membrane and storage device |
| CN114050053A (en) * | 2021-11-16 | 2022-02-15 | 莫纶(珠海)新材料科技有限公司 | Preparation method of flexible ceramic film capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108176256B (en) | 2020-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108176256A (en) | A kind of high temperature resistant composite nano fiber filters membrane preparation method | |
| CN102242464B (en) | Polymer-ceramic compound nanometer fibrous membrane as well as preparation method and application thereof | |
| CN107441827B (en) | Multilayer electret nanofiber filtering material and preparation method thereof | |
| CN107137979B (en) | Micron fiber three-dimensional framework/polymer nanofiber composite filter material and preparation method thereof | |
| Yang et al. | Electrospun polymer composite membrane with superior thermal stability and excellent chemical resistance for high-efficiency PM2. 5 capture | |
| CN104436865B (en) | High-efficiency low-resistance PM2.5 composite fiber filtering membrane and electrostatic spinning preparation method | |
| CN109012218A (en) | Four layers of composite micro-nano rice fiber air filter membrane of one kind and its application | |
| CN106835304B (en) | A kind of electrostatic spinning-electrical painting device and its application | |
| CN106283389B (en) | A kind of hydrophobic/hydrophilic infiltration sex differernce composite cellulosic membrane and preparation method thereof | |
| CN105903271B (en) | Controllable mixing nanostructured fibers composite filter material and preparation method thereof | |
| CN106925033B (en) | A kind of composite nano fiber PM2.5 filtering material and preparation method thereof | |
| CN113368712B (en) | Efficient air filtration composite nanofiber membrane and preparation method thereof | |
| CN106245232A (en) | Graphene oxide@high polymer nano fiber multilayer film and its preparation method and application | |
| CN112522856A (en) | Metal organic framework and electrospun nanofiber composite protective cover film and preparation | |
| CN113413684B (en) | Polylactic acid nano double-layer fiber membrane filter element and preparation method thereof | |
| CN105709502A (en) | Anti-static sandwich type purification material | |
| CN112774457A (en) | Polymer microfiltration membrane and preparation method and application thereof | |
| CN106823563A (en) | A kind of preparation of melt Static Spinning polypropylene filter material and structural behaviour regulation and control method | |
| CN105536352B (en) | A kind of high-efficient low-resistance type is staggered nano-fiber composite material and preparation method thereof | |
| WO2019058292A1 (en) | Nano-fiber based filter media and methods of preparation thereof | |
| CN110777533A (en) | Super-hydrophobic nano-fiber, fiber membrane, preparation and application thereof | |
| CN103191604A (en) | Preparation method of firmly-combined sandwich type purification material | |
| CN107754493B (en) | Photocatalytic transparent PM2.5 filtering membrane and preparation method thereof | |
| CN107366030A (en) | A kind of micrometer fibers/nanofiber composite filter material and preparation method thereof | |
| CN108771981A (en) | Graphene composite material and its preparation method and application, graphene-carbon nano-fiber film and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: Room 417, 284 Huancheng Road, Taocheng Town, Yongchun County, Quanzhou City, Fujian Province 362600 Patentee after: Quanzhou Hengyi Enterprise Service Co.,Ltd. Address before: Xiamen City, Fujian Province, 361005 South Siming Road No. 422 Patentee before: XIAMEN University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230608 Address after: Room 205-2, Kehui Building, No. 3 Zengcuo'an North Road, Software Park Phase I, Xiamen Torch High tech Zone, Xiamen, Fujian Province, 361000 Patentee after: Xiamen Dinghuili Education Technology Co.,Ltd. Address before: Room 417, 284 Huancheng Road, Taocheng Town, Yongchun County, Quanzhou City, Fujian Province 362600 Patentee before: Quanzhou Hengyi Enterprise Service Co.,Ltd. |
|
| TR01 | Transfer of patent right |