CN108635966A - A kind of preparation method and products thereof of nano-fiber film filtering material - Google Patents
A kind of preparation method and products thereof of nano-fiber film filtering material Download PDFInfo
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- CN108635966A CN108635966A CN201810373196.7A CN201810373196A CN108635966A CN 108635966 A CN108635966 A CN 108635966A CN 201810373196 A CN201810373196 A CN 201810373196A CN 108635966 A CN108635966 A CN 108635966A
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- nano
- fiber film
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- 239000000463 material Substances 0.000 title claims abstract description 143
- 239000002121 nanofiber Substances 0.000 title claims abstract description 95
- 238000001914 filtration Methods 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000009987 spinning Methods 0.000 claims abstract description 51
- 239000002086 nanomaterial Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 230000010287 polarization Effects 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 238000001523 electrospinning Methods 0.000 claims abstract description 6
- 125000000524 functional group Chemical group 0.000 claims description 38
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 33
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 30
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 28
- 229910052755 nonmetal Inorganic materials 0.000 claims description 27
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 26
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 20
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 18
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 238000010041 electrostatic spinning Methods 0.000 claims description 16
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 16
- -1 nanometer sheet Substances 0.000 claims description 15
- 229910052710 silicon Inorganic materials 0.000 claims description 15
- 239000010703 silicon Substances 0.000 claims description 15
- 239000002105 nanoparticle Substances 0.000 claims description 14
- 239000011787 zinc oxide Substances 0.000 claims description 14
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 13
- 229910002113 barium titanate Inorganic materials 0.000 claims description 13
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 9
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 9
- VEAHHGDAQKXNNG-UHFFFAOYSA-H C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-].[Zr+4].[Ba+2].C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-].C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-] Chemical compound C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-].[Zr+4].[Ba+2].C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-].C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-] VEAHHGDAQKXNNG-UHFFFAOYSA-H 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 8
- JXDXDSKXFRTAPA-UHFFFAOYSA-N calcium;barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[Ca+2].[Ti+4].[Ba+2] JXDXDSKXFRTAPA-UHFFFAOYSA-N 0.000 claims description 8
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 8
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
- 229910052788 barium Inorganic materials 0.000 claims description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004697 Polyetherimide Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 6
- 229920001601 polyetherimide Polymers 0.000 claims description 6
- 239000004626 polylactic acid Substances 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 229920000131 polyvinylidene Polymers 0.000 claims description 6
- 239000002033 PVDF binder Substances 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229910003978 SiClx Inorganic materials 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- 229920001038 ethylene copolymer Polymers 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 claims description 2
- 239000002070 nanowire Substances 0.000 claims description 2
- 229960001296 zinc oxide Drugs 0.000 claims 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical class CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 claims 1
- 238000003682 fluorination reaction Methods 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 150000004702 methyl esters Chemical class 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 7
- 239000002440 industrial waste Substances 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 5
- 238000004887 air purification Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 52
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 20
- 230000009102 absorption Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 239000011780 sodium chloride Substances 0.000 description 10
- 239000000443 aerosol Substances 0.000 description 9
- 241000209094 Oryza Species 0.000 description 8
- 235000007164 Oryza sativa Nutrition 0.000 description 8
- 239000011259 mixed solution Substances 0.000 description 8
- 235000009566 rice Nutrition 0.000 description 8
- 230000005684 electric field Effects 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- UKDIAJWKFXFVFG-UHFFFAOYSA-N potassium;oxido(dioxo)niobium Chemical compound [K+].[O-][Nb](=O)=O UKDIAJWKFXFVFG-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- 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
- 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
- B01D46/546—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using nano- or microfibres
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of preparation method and products thereof of nano-fiber film filtering material, method includes：Using organic piezoelectric materials or organic electrostatic sorbing material as fertile material, it is mixed with inorganic piezoelectric material or electrostatic adsorption nano material and solvent, stirring makes organic piezoelectric materials or organic electrostatic sorbing material dissolve under preset temperature, keep inorganic piezoelectric material or electrostatic adsorption nano material evenly dispersed, obtains the spinning solution with viscosity；Spinning is carried out to the spinning solution of acquisition using electrospinning process, Electrospun nano-fibers is received on substrate, forms nano-fiber film；It annealed, polarized to nano-fiber film, being cut, material polarization process again, obtaining nano-fiber film filtering material；The nano-fiber film filtering material has stronger adsorption capacity under high flow rate, high wind speed scene compared to traditional Electrostatic Absorption material to impurity and particle, has better filter effect；Suitable for the high flow velocity scene such as air purification, haze mask, industrial waste gas, vehicle maintenance service.
Description
Technical field
The invention belongs to filtering material preparing technical fields, and in particular to a kind of to be received for high flow rate, high wind speed scene
The preparation method and products thereof of rice fiber membrane filtration material.
Background technology
In recent years, as the high speed development of national economy, industrialization and urbanization process are increasingly accelerated, fossil energy is excessive
Burning, atmosphere polluting problem getting worse.The excess emissions of industrial waste gas and vehicle exhaust make air quality decline year by year, haze
Weather frequency is existing, seriously affects the physical and mental health of people.Industrial waste gas and vehicle exhaust are handled using filter element, can be changed
Kind air quality；The soakage of human body PM2.5 can be greatly reduced by wearing haze mask in haze sky, ensure health.
Traditional filtering mainly filters out particle and impurity with nanofiber by mechanical interception and Electrostatic Absorption, this
Material has preferable filter effect under conditions of low wind speed, low flow velocity；But it is increased with wind speed and flow velocity, filtering effect
Fruit is constantly deteriorated；From ecological environmental protection, health angle, flowed to being suitable for high flow rate, high wind speed scene, and in height
The filtering material with preferable filter effect is with actual demand under speed, high wind speed.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of nano-fiber film filtering materials
Preparation method and products thereof, its object is to improve filter effect of the filtering material under high flow rate, high wind speed.
To achieve the above object, according to one aspect of the present invention, a kind of nano-fiber film filtering material is provided
Preparation method specifically includes the following steps：
(1) organic piezoelectric materials or organic electrostatic sorbing material are inhaled as fertile material and inorganic piezoelectric material or electrostatic
Attached nano material and solvent mixing, under preset temperature stirring so that organic piezoelectric materials or organic electrostatic sorbing material is dissolved,
Keep inorganic piezoelectric material or electrostatic adsorption nano material evenly dispersed, obtains the spinning solution with viscosity；
(2) it uses electrospinning process to carry out spinning to obtained spinning solution, it is fine to receive electrostatic spinning nano on substrate
Dimension forms nano-fiber film；
(3) it annealed, polarized to the nano-fiber film of acquisition, being cut, polarization process, acquisition are suitable for height to material again
The nano-fiber film filtering material of flow velocity, high wind speed scene.
Preferably, the preparation method of above-mentioned nano-fiber film filtering material, organic piezoresistive material used by step (1)
Material selected from polyvinylidene fluoride, polyvinylidene fluoride-trifluoro-ethylene copolymer, polyvinylidene fluoride-hexafluoropropylene copolymer,
Polyvinylidene fluoride, functional group's grafting polyvinylidene fluoride-trifluoro-ethylene copolymerization are grafted by polymethyl methacrylate, functional group
The piezoelectricity high scores such as object, functional group's grafting polyvinylidene fluoride-hexafluoropropylene copolymer, functional group's grafting polymethyl methacrylate
One or more of sub- polymer and its copolymer.
Preferably, the preparation method of above-mentioned nano-fiber film filtering material, organic electrostatic used by step (1) are inhaled
Enclosure material is transferred selected from polyacrylonitrile, polyetherimide, polyvinyl alcohol, polyethylene glycol oxide, polystyrene, polylactic acid, functional group
Connect polyacrylonitrile, functional group's grafting polyetherimide, functional group's grafting polyvinyl alcohol, functional group's grafting polyoxyethylene ethylene, function
Electrostatic Absorptions high molecular polymer and its one kind or several in copolymer such as group's grafting polystyrene, functional group's grafting polylactic acid
Kind.
Preferably, the preparation method of above-mentioned nano-fiber film filtering material, inorganic piezoelectric material used by step (1)
The nanostructure of material is with nano particle, the structure of one or more of nanometer sheet, nanofiber；Inorganic piezoelectric material is selected
From in barium titanate, potassium-sodium niobate, lead zirconate titanate, zinc oxide, barium zirconium phthalate, calcium barium titanate, metal or nonmetal doping barium titanate,
Metal or nonmetal doping potassium-sodium niobate, metal or nonmetal doping lead zirconate titanate, metal or nonmetal doping zinc oxide, metal
Or nonmetal doping barium zirconium phthalate, metal or nonmetal doping calcium barium titanate, function dough barium titanate, function dough potassium niobate
Sodium, function dough lead zirconate titanate, functional group's zinc oxide, function dough barium zirconium phthalate, function dough calcium barium titanate etc. have pressure
One or more of material and its composite material of electrical effect.
Preferably, the preparation method of above-mentioned nano-fiber film filtering material, Electrostatic Absorption used by step (1) are received
The nanostructure of rice material is the structure with one or more of nano particle, nanometer sheet, nanofiber；Electrostatic Absorption is received
Rice material is selected from polytetrafluoroethylene (PTFE), FEP fluorinated ethylene propylene copolymer, silicon based silicon dioxide, silicon substrate silicon nitride, metal or nonmetallic
Doping polytetrafluoroethylene (PTFE), metal or nonmetal doping FEP fluorinated ethylene propylene copolymer, metal or nonmetal doping silicon based silicon dioxide,
Metal or nonmetal doping silicon substrate silicon nitride, function dough polytetrafluoroethylene (PTFE), function dough FEP fluorinated ethylene propylene copolymer, functional group
Change the material with Electrostatic Absorption ability such as silicon based silicon dioxide, functional group's SiClx base silicon nitride and its one kind in composite material
Or it is several.
Preferably, the preparation method of above-mentioned nano-fiber film filtering material, solvent used by step (1) are third
Ketone, toluene, deionized water, N, N-dimethylformamide, N, N dimethyl acetamide, ethyl alcohol, N-Methyl pyrrolidone, tetrahydrochysene furan
It mutters, one or more of chloroform.
Preferably, the preparation method of above-mentioned nano-fiber film filtering material, step (2) use electrospinning process pair
Spinning voltage used by spinning solution carries out spinning is between 8kV~35kV or between -8kV~-35kV, spinning injection used
Device between spinning collector at a distance between 5cm~35cm, the flow velocity of spinning solution is between 0.1mL/h~4.0mL/h.
It is another aspect of this invention to provide that provide a kind of nano-fiber film filtering material, by organic piezoelectric materials or
The spinning that organic electrostatic sorbing material is mixed to prepare as fertile material and solvent, inorganic piezoelectric material or electrostatic adsorption nano material
The nano-fiber film that silk liquid carries out spinning composition by method of electrostatic spinning annealed, polarized, cut, material polarization process again
It obtains；Piezoelectric material is added on the basis of Electrostatic Absorption material in the nano-fiber film filtering material, passes through the positive negative electricity of stress
The separation of lotus center generates electric field and comes adsorbing contaminant and particle, and air velocity is faster, and its generated electric field is stronger, in reserved materials
Piezoelectric property is introduced while Electrostatic Absorption filter effect, has more preferably filter effect under high flow rate and high wind speed scene；Separately
On the one hand, due to its nanostructure, the charge storage of the filtering material of this nano-fiber film form, electricity
Lotus stability, hydrophobicity and moisture resistance are fine.
The above-mentioned nano-fiber film filtering material for high flow rate scene, nanofiber diameter are 0.1~1.6 micro-
Rice, nanofiber film thickness are 0.1~3000 micron.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect：
(1) nano-fiber film prepared by the preparation method of nano-fiber film filtering material provided by the invention has
Diameter is small, soilless sticking, the advantage that fiber is uniform, porosity is high, specific surface area is high, more preferably to the strainability of particle and impurity.
(2) nano-fiber film filtering material provided by the invention is that the nanofiber of electrostatic and piezo-electricity composite material is thin
Film enhances the piezoelectric property of material while retaining electrostatic material filter effect, is detached by stress positive and negative charge center
It generates electric field and comes adsorbing contaminant and particle, air velocity is faster, and the electric field generated is stronger；Compared to traditional Electrostatic Absorption material
Material, this nano-fiber film filtering material provided by the invention have more impurity and particle under high flow rate and high wind speed scene
Strong adsorption capacity, better filter effect；On the other hand, due to nanostructure, the mistake of this nano-fiber film form
The charge storage of filter material material, charge stability, hydrophobicity and moisture resistance are fine；As filter element, in air
Purification, haze mask, industrial waste gas, vehicle maintenance service etc., which are especially under high flow rate scene, to have broad application prospects.
Description of the drawings
Fig. 1 is the absorption principle schematic diagram of nano-fiber film filtering material provided by the present invention.
Fig. 2 is that the fertile material of embodiment 1 is that polyvinylidene fluoride-hexafluoropropylene copolymer and nano barium titanate titanate particle are multiple
The scanning electron microscopic picture of the Electrospun nano-fibers of conjunction.
Fig. 3 is that the fertile material of embodiment 1 is that polyvinylidene fluoride-hexafluoropropylene copolymer and nano barium titanate titanate particle are multiple
The pictorial diagram of the Electrospun nano-fibers film of conjunction.
Fig. 4 is that the fertile material of embodiment 2 is that polyvinylidene fluoride-hexafluoropropylene copolymer and nano granular of zinc oxide are multiple
The scanning electron microscopic picture of the Electrospun nano-fibers of conjunction.
Fig. 5 is that the fertile material of embodiment 2 is that polyvinylidene fluoride-hexafluoropropylene copolymer and nano granular of zinc oxide are multiple
The pictorial diagram of the Electrospun nano-fibers film of conjunction.
Fig. 6 is that the fertile material of embodiment 3 is the Electrospun nano-fibers of polyvinylidene fluoride-hexafluoropropylene copolymer
Filter efficiency and pressure drop schematic diagram of the film in different grammes per square metres.
Fig. 7 is that the fertile material of embodiment 3 is the Electrospun nano-fibers of polyvinylidene fluoride-hexafluoropropylene copolymer
Film is in filter efficiency different in flow rate and pressure drop schematic diagram.
Fig. 8 is that the fertile material of embodiment 1 is that polyvinylidene fluoride-hexafluoropropylene copolymer and nano barium titanate titanate particle are multiple
Filter efficiency and pressure drop schematic diagram of the Electrospun nano-fibers film of conjunction in different grammes per square metres.
Fig. 9 is that the fertile material of embodiment 1 is that polyvinylidene fluoride-hexafluoropropylene copolymer and nano barium titanate titanate particle are multiple
The Electrospun nano-fibers film of conjunction is in filter efficiency different in flow rate and pressure drop schematic diagram.
In all the appended drawings, identical reference numeral is used for indicating identical element or structure, wherein：1- organic and inorganic compounds
It is out-of-date just in high flow rate fluid stream to close nanofiber, the particle of 2- nanofibers absorption or impurity, 3- piezoelectric materials nanofiber
External display electric field, the 4- high flow rate fluids that center of negative charge detaches flow through nanofiber.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
The preparation method of nano-fiber film filtering material provided by the invention, specifically includes the following steps：
(1) organic piezoelectric materials or organic electrostatic sorbing material are inhaled as fertile material and inorganic piezoelectric material or electrostatic
Attached nano material, solvent mixing, stirring setting duration makes organic piezoelectric materials or organic electrostatic sorbing material under preset temperature
Dissolving, inorganic piezoelectric material or electrostatic adsorption nano material are evenly dispersed, obtain the spinning solution with viscosity；
(2) it uses electrospinning process to carry out spinning to obtained spinning solution, it is fine to receive electrostatic spinning nano on substrate
Dimension forms nano-fiber film；
(3) it annealed, polarized to nano-fiber film, being cut, polarization process, acquisition being received for high flow rate scene again
Rice fiber membrane filtration material.
Wherein, organic piezoelectric materials used by step (1) are selected from polyvinylidene fluoride, polyvinylidene fluoride-trifluoro
Ethylene copolymer, polyvinylidene fluoride-hexafluoropropylene copolymer, polymethyl methacrylate, functional group's grafting gather inclined difluoro second
Alkene, functional group's grafting polyvinylidene fluoride-trifluoro-ethylene copolymer, functional group's grafting polyvinylidene fluoride-hexafluoropropene copolymerization
One or more of the piezoelectricity high molecular polymers and its copolymer such as object, functional group's grafting polymethyl methacrylate.
Organic electrostatic sorbing material used by step (1) is selected from polyacrylonitrile, polyetherimide, polyvinyl alcohol, gathers
Ethylene oxide, polystyrene, polylactic acid, functional group's grafting polyacrylonitrile, functional group's grafting polyetherimide, functional group's grafting are poly-
The Electrostatic Absorptions high scores such as vinyl alcohol, functional group's grafting polyoxyethylene ethylene, functional group's grafting polystyrene, functional group's grafting polylactic acid
One or more of sub- polymer and its copolymer.
The nanostructure of inorganic piezoelectric material used by step (1) is with nano particle, in nanometer sheet, nanofiber
One or more of structures；Inorganic piezoelectric material is selected from barium titanate, potassium-sodium niobate, lead zirconate titanate, zinc oxide, zirconium metatitanic acid
Barium, calcium barium titanate, metal or nonmetal doping barium titanate, metal or nonmetal doping potassium-sodium niobate, metal or nonmetal doping
Lead zirconate titanate, metal or nonmetal doping zinc oxide, metal or nonmetal doping barium zirconium phthalate, metal or nonmetal doping calcium titanium
Sour barium, function dough barium titanate, function dough potassium-sodium niobate, function dough lead zirconate titanate, functional group's zinc oxide, function dough
Barium zirconium phthalate, function dough calcium barium titanate etc. have one or more of material and its composite material of piezoelectric effect.
The nanostructure of electrostatic adsorption nano material used by step (1) is with nano particle, nanometer sheet, Nanowire
The structure of one or more of dimension；Electrostatic Absorption material is selected from polytetrafluoroethylene (PTFE), FEP fluorinated ethylene propylene copolymer, silicon substrate dioxy
SiClx, silicon substrate silicon nitride, metal or nonmetal doping polytetrafluoroethylene (PTFE), metal or nonmetal doping FEP fluorinated ethylene propylene copolymer,
Metal or nonmetal doping silicon based silicon dioxide, metal or nonmetal doping silicon substrate silicon nitride, function dough polytetrafluoroethylene (PTFE), official
Energy dough FEP fluorinated ethylene propylene copolymer, functional group's silicon based silicon dioxide, functional group's SiClx base silicon nitride etc. have Electrostatic Absorption
One or more of material and its composite material of ability.
Solvent used by step (1) is acetone, toluene, deionized water, N, N-dimethylformamide, N, N dimethyl acetyl
One or more of amine, ethyl alcohol, N-Methyl pyrrolidone, tetrahydrofuran, chloroform.
In embodiment, step (2) carries out spinning electricity used by spinning using electrospinning process to obtained spinning solution
Be pressed between 8kV~35kV or between -8kV~-35kV, injection apparatus used in spinning between spinning collector at a distance from
Between 5cm~35cm, the flow velocity of spinning solution is between 0.1mL/h~4.0mL/h.The nanofiber diameter obtained 0.1~
Between 1.6 microns, nanofiber film thickness is between 0.1~3000 micron.
Referring to Fig.1, it is one of nano-fiber film filtering material implementation provided by the present invention for high flow rate scene
The operation principle schematic diagram of example, wherein 1 indicates organic and inorganic composite nanofiber, 4 illustrate that high flow rate fluid flows through nanometer
Fiber, 3 illustrate that piezoelectric material nanofiber detaches at its out-of-date positive and negative charge center of high flow rate fluid stream, externally aobvious
Show electric field；2 indicate the particle or impurity of nanofiber absorption.The filtering material with gas flow rate is accelerated, electrostatic material
Adsorption capacity weakens, and piezoelectric material stress enhances, and positive and negative charge center separating distance is bigger, externally shows that electric field is stronger,
More conducively adsorption particle or impurity.
Preparation method provided by the invention is explained further below in conjunction with specific embodiment.
Embodiment 1
(1) using 3.0g polyvinylidene fluoride-hexafluoropropylene copolymer as fertile material and 1g barium titanate nano particles with
7.2g acetone and the sealing mixing of 3.6g n,N dimethylformamide, stir 3 hours under 55 degrees Celsius, obtain spinning solution；
(2) obtained spinning solution is added in syringe, and syringe needle is connected with high voltage power supply, setting spinning voltage is
25kV, spinning distance are 10 centimetres, and the flow velocity of spinning solution is 1.5mL/h；It is fine to obtain a diameter of 600 nanometers of electrostatic spinning nano
Dimension, is received with metal roller bearing, and Electrospun nano-fibers film is made after spinning in 1.5 hours；
(3) it annealed, polarized to obtained Electrospun nano-fibers film, being cut, polarization process again, being used for
The nano-fiber film filtering material of high flow rate scene.
Embodiment 2
(1) using 3.0g polyvinylidene fluoride-hexafluoropropylene copolymer as fertile material and 0.2g Zinc oxide nanoparticles
It is mixed with 7.2g acetone and the sealing of 3.6g n,N dimethylformamide, is stirred 3 hours under 55 degrees Celsius, obtain spinning solution；
(2) above-mentioned spinning solution is added in syringe, and syringe needle is connected with high voltage power supply, setting spinning voltage is
20kV, spinning distance are 13 centimetres, and the flow velocity of spinning solution is 2mL/h；It is fine to obtain a diameter of 750 nanometers of electrostatic spinning nano
Dimension, is received with metal roller bearing, and Electrospun nano-fibers film is made after spinning in 1 hour；
(3) it annealed, polarized to obtained Electrospun nano-fibers film, being cut, polarization process again, being used for
The nano-fiber film filtering material of high flow rate scene.
Embodiment 3
(1) using 3.0g polyvinylidene fluoride-hexafluoropropylene copolymer as fertile material and 8.2g acetone and 3.6g N, N
Dimethylformamide sealing mixing, stirs 3 hours under 55 degrees Celsius, obtains spinning solution；
(2) above-mentioned spinning solution is added in syringe, and syringe needle is connected with high voltage power supply, setting spinning voltage is
20kV, spinning distance are 15 centimetres, and the flow velocity of spinning solution is 2mL/h；It is fine to obtain a diameter of 800 nanometers of electrostatic spinning nano
Dimension, is received with metal roller bearing, and Electrospun nano-fibers film is made after spinning in 1 hour.
(3) it annealed, polarized to obtained Electrospun nano-fibers film, being cut, polarization process again, being used for
The nano-fiber film filtering material of high flow rate scene.
It is in embodiment 1,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 1g titaniums shown in Fig. 2
Sour barium nano particle and 7.2g acetone and 3.6g N, the electrostatic spinning that the mixed solution of N-dimethylformamide composition is prepared are received
Surface topography of the rice fiber under scanning electron microscope.
It is in embodiment 1,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 1g titaniums shown in Fig. 3
The mixed solution electrostatic spinning of sour barium nano particle and 7.2g acetone and 3.6g N, N-dimethylformamide composition are prepared for 1.5 hours
The pictorial diagram of the Electrospun nano-fibers film gone out.
It is in embodiment 2,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 0.2g shown in Fig. 4
Zinc oxide nanoparticle and 7.2g acetone and 3.6g N, the electrostatic spinning that the mixed solution that N-dimethylformamide forms is prepared
Surface topography of the nanofiber under scanning electron microscope.
It is in embodiment 2,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 0.2g shown in Fig. 5
The mixed solution electrostatic spinning of Zinc oxide nanoparticle and 7.2g acetone and 3.6g N, N-dimethylformamide composition are prepared for 1 hour
The pictorial diagram of the Electrospun nano-fibers film gone out.
It is in embodiment 3,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 8.2g shown in Fig. 6
Acetone and 3.6g N, the Electrospun nano-fibers film that the mixed solution electrostatic spinning that N-dimethylformamide forms is prepared
Filter efficiency in different grammes per square metres and pressure drop, when grammes per square metre is 6.2g/m2When its to 0.3 micron of NaCl aerosol filtrations
Efficiency is 96.8%, and pressure drop is only 78Pa.
It is in embodiment 3,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 8.2g shown in Fig. 7
Acetone and 3.6g N, the grammes per square metre that the mixed solution electrostatic spinning of N-dimethylformamide composition is prepared is 4.6g/m2Electrostatic spinning
Nano-fiber film is in filter efficiency different in flow rate and pressure drop, and when flow velocity is 20L/min, it is to 0.3 micron
NaCl aerosol filtration efficiency is 93.0%, and pressure drop is only 44Pa；When flow velocity is 30L/min, it is to 0.3 micron of NaCl gas
Colloidal sol filter efficiency is 94.9%, and pressure drop is only 54Pa；When flow velocity is 40L/min, it is to 0.3 micron of NaCl aerosol mistakes
It is 96.2% to filter efficiency, and pressure drop is only 78Pa；When flow velocity is 50L/min, it is to 0.3 micron of NaCl aerosol filtration efficiency
It is 96.3%, pressure drop is only 102Pa.
It is in embodiment 1,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 1g titaniums shown in Fig. 8
Sour barium nano particle and 7.2g acetone and 3.6g N, the mixed solution electrostatic spinning that N-dimethylformamide forms are prepared quiet
Filter efficiency and pressure drop of the Electrospun nano-fibers film in different grammes per square metres, when grammes per square metre is 6.9g/m2When it is micro- to 0.3
The NaCl aerosol filtration efficiency of rice is 98.8%, and pressure drop is only 79Pa.
It is in embodiment 1,3.0g polyvinylidene fluoride-hexafluoropropylene copolymer is as fertile material and 1g titaniums shown in Fig. 9
Sour barium nano particle and 7.2g acetone and 3.6g N, gram that the mixed solution electrostatic spinning that N-dimethylformamide forms is prepared
Weight is 5.2g/m2Electrospun nano-fibers film is in filter efficiency different in flow rate and pressure drop, when flow velocity is 20L/
It is 96.8% to 0.3 micron of NaCl aerosol filtration efficiency when min, and pressure drop is only 43Pa；When flow velocity be 30L/min when its
It is 98.1% to 0.3 micron of NaCl aerosol filtration efficiency, pressure drop is only 54Pa；When flow velocity is 40L/min, it is micro- to 0.3
The NaCl aerosol filtration efficiency of rice is 98.8%, and pressure drop is only 76Pa；When flow velocity is 50L/min, it is to 0.3 micron
NaCl aerosol filtration efficiency is 99.0%, and pressure drop is only 100Pa.
Above-mentioned measured data shows the nano-fiber film filtering material for high flow rate scene prepared by the present invention,
There are stronger adsorption capacity, better filter effect to impurity and particle under high flow rate scene.The nano-fiber film is filtered
Core component of the material as filter element, it is special in air purification, haze mask, industrial waste gas, vehicle maintenance service etc.
It is to have wide application market under high flow rate scene.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of preparation method of nano-fiber film filtering material, which is characterized in that include the following steps：
(1) using organic piezoelectric materials or organic electrostatic sorbing material as fertile material, with inorganic piezoelectric material or Electrostatic Absorption
Nano material and solvent mixing, being stirred under preset temperature makes organic piezoelectric materials or organic electrostatic sorbing material dissolve, and makes
Inorganic piezoelectric material or electrostatic adsorption nano material are evenly dispersed, obtain the spinning solution with viscosity；
(2) it uses electrospinning process to carry out spinning to the spinning solution, receives Electrospun nano-fibers on substrate, formed
Nano-fiber film；
(3) it annealed, polarized to the nano-fiber film, being cut, material polarization process again, obtaining nano-fiber film mistake
Filter material material.
2. the preparation method of nano-fiber film filtering material as described in claim 1, which is characterized in that step (1) is adopted
Organic piezoelectric materials are selected from polyvinylidene fluoride, polyvinylidene fluoride-trifluoro-ethylene copolymer, polyvinylidene fluoride-
Hexafluoropropylene copolymer, polymethyl methacrylate, polyvinylidene fluoride is grafted by functional group, functional group's grafting gathers inclined difluoro second
Polymethyl is grafted by alkene-trifluoro-ethylene copolymer, functional group's grafting polyvinylidene fluoride-hexafluoropropylene copolymer, functional group
One or more of sour methyl esters.
3. the preparation method of nano-fiber film filtering material as claimed in claim 1 or 2, which is characterized in that step (1) institute
The organic electrostatic sorbing material of use selected from polyacrylonitrile, polyetherimide, polyvinyl alcohol, polyethylene glycol oxide, polystyrene,
Polylactic acid, functional group's grafting polyacrylonitrile, functional group's grafting polyetherimide, functional group's grafting polyvinyl alcohol, functional group's grafting
One or more of polyethylene glycol oxide, functional group's grafting polystyrene, functional group's grafting polylactic acid.
4. the preparation method of nano-fiber film filtering material as claimed in claim 1 or 2, which is characterized in that step (1) institute
The nanostructure of the inorganic piezoelectric material used is with nano particle, the knot of one or more of nanometer sheet, nanofiber
Structure；Inorganic piezoelectric material selected from barium titanate, potassium-sodium niobate, lead zirconate titanate, zinc oxide, barium zirconium phthalate, calcium barium titanate, metal or
Nonmetal doping barium titanate, metal or nonmetal doping potassium-sodium niobate, metal or nonmetal doping lead zirconate titanate, metal or non-gold
Belong to doping zinc-oxide, metal or nonmetal doping barium zirconium phthalate, metal or nonmetal doping calcium barium titanate, function dough metatitanic acid
Barium, function dough potassium-sodium niobate, function dough lead zirconate titanate, functional group's zinc oxide, function dough barium zirconium phthalate, function dough
One or more of calcium barium titanate.
5. the preparation method of nano-fiber film filtering material as claimed in claim 1 or 2, which is characterized in that step (1) institute
The nanostructure of the electrostatic adsorption nano material used is with one or more of nano particle, nanometer sheet, nanofiber
Structure；Electrostatic adsorption nano material is selected from polytetrafluoroethylene (PTFE), FEP fluorinated ethylene propylene copolymer, silicon based silicon dioxide, silicon substrate nitrogen
SiClx, metal or nonmetal doping polytetrafluoroethylene (PTFE), metal or nonmetal doping FEP fluorinated ethylene propylene copolymer, metal or nonmetallic
Adulterate silicon based silicon dioxide, metal or nonmetal doping silicon substrate silicon nitride, function dough polytetrafluoroethylene (PTFE), function dough fluorination second
One or more of propylene copolymer, functional group's silicon based silicon dioxide, functional group's SiClx base silicon nitride.
6. the preparation method of nano-fiber film filtering material as claimed in claim 1 or 2, which is characterized in that step (1) institute
The solvent used is acetone, toluene, deionized water, N, N-dimethylformamide, N, N dimethyl acetamide, ethyl alcohol, N- methyl pyrroles
One or more of pyrrolidone, tetrahydrofuran, chloroform.
7. the preparation method of nano-fiber film filtering material as claimed in claim 1 or 2, which is characterized in that carry out spinning
Used spinning voltage is 8kV~35kV or -8kV~-35kV；Injection apparatus used in spinning between spinning collector at a distance from
For 5cm~35cm；The flow velocity of spinning solution is 0.1mL/h~4.0mL/h.
8. the nano-fiber film filtering material that a kind of preparation method using described in claim 1~7 obtains.
9. a kind of nano-fiber film filtering material, which is characterized in that made by organic piezoelectric materials or organic electrostatic sorbing material
The spinning solution being mixed to prepare for fertile material and inorganic piezoelectric material or the dissolving of electrostatic adsorption nano material passes through method of electrostatic spinning
The nano-fiber film of progress spinning composition is annealed, is polarized, being cut, polarization process obtains material again.
10. nano-fiber film filtering material as claimed in claim 9, which is characterized in that the Nanowire of nano-fiber film
A diameter of 0.1~1.6 micron is tieed up, nano-fiber film thickness is 0.1~3000 micron.
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Application publication date: 20181012 |