CN107899432A - A kind of plate compounding NF membrane for water filter purification and preparation method thereof - Google Patents
A kind of plate compounding NF membrane for water filter purification and preparation method thereof Download PDFInfo
- Publication number
- CN107899432A CN107899432A CN201711397348.9A CN201711397348A CN107899432A CN 107899432 A CN107899432 A CN 107899432A CN 201711397348 A CN201711397348 A CN 201711397348A CN 107899432 A CN107899432 A CN 107899432A
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- membrane
- solution
- ultrafiltration membranes
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- 239000012528 membrane Substances 0.000 title claims abstract description 137
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000013329 compounding Methods 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 77
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 58
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 58
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 37
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 30
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 30
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 30
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 24
- GFAUNYMRSKVDJL-UHFFFAOYSA-N formyl chloride Chemical compound ClC=O GFAUNYMRSKVDJL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 210000004379 membrane Anatomy 0.000 claims description 126
- 239000000243 solution Substances 0.000 claims description 101
- 238000001914 filtration Methods 0.000 claims description 41
- 210000002469 basement membrane Anatomy 0.000 claims description 39
- 239000002131 composite material Substances 0.000 claims description 37
- 229940105329 carboxymethylcellulose Drugs 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 24
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- 239000008367 deionised water Substances 0.000 claims description 21
- 229910021641 deionized water Inorganic materials 0.000 claims description 21
- 238000006266 etherification reaction Methods 0.000 claims description 21
- 239000008346 aqueous phase Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000012074 organic phase Substances 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 18
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 16
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 230000009514 concussion Effects 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 238000004132 cross linking Methods 0.000 claims description 10
- 230000002209 hydrophobic effect Effects 0.000 claims description 10
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical class CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 8
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical class Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 7
- 241000208202 Linaceae Species 0.000 claims description 7
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical class CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000004090 dissolution Methods 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical class CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- 238000012695 Interfacial polymerization Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003651 drinking water Substances 0.000 abstract 1
- 235000020188 drinking water Nutrition 0.000 abstract 1
- 239000010841 municipal wastewater Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 18
- 150000002500 ions Chemical class 0.000 description 11
- 230000008859 change Effects 0.000 description 8
- 150000003384 small molecules Chemical class 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 238000002242 deionisation method Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000010148 water-pollination Effects 0.000 description 4
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical group CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 3
- 150000001263 acyl chlorides Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-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
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002593 Polyethylene Glycol 800 Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- VEFXTGTZJOWDOF-UHFFFAOYSA-N benzene;hydrate Chemical compound O.C1=CC=CC=C1 VEFXTGTZJOWDOF-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229940057847 polyethylene glycol 600 Drugs 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- B01D69/06—Flat membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- 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
- B01D67/0002—Organic membrane manufacture
-
- 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
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- 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
- B01D69/10—Supported membranes; Membrane supports
- B01D69/105—Support pretreatment
-
- 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
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | |
Contact angle (°) | 45.24 | 48.37 | 50.63 | 48.65 | 49.75 | 87.86 |
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711397348.9A CN107899432B (en) | 2017-12-21 | 2017-12-21 | A kind of plate compounding nanofiltration membrane and preparation method thereof for water filter purification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711397348.9A CN107899432B (en) | 2017-12-21 | 2017-12-21 | A kind of plate compounding nanofiltration membrane and preparation method thereof for water filter purification |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107899432A true CN107899432A (en) | 2018-04-13 |
CN107899432B CN107899432B (en) | 2019-08-23 |
Family
ID=61869621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711397348.9A Active CN107899432B (en) | 2017-12-21 | 2017-12-21 | A kind of plate compounding nanofiltration membrane and preparation method thereof for water filter purification |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107899432B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109046033A (en) * | 2018-07-20 | 2018-12-21 | 南京理工大学 | Polyethyleneimine/carboxymethyl chitosan composite nanometer filtering film and preparation method thereof |
CN109553184A (en) * | 2018-12-29 | 2019-04-02 | 殷伟卿 | A kind of novel MBR flat-plate separation film, MBR flat sheet membrane module and its application |
CN109776831A (en) * | 2019-03-20 | 2019-05-21 | 福州大学 | A kind of fast preparation method of self-supporting hydroxide film and metal organic framework film |
CN115105973A (en) * | 2022-06-28 | 2022-09-27 | 哈尔滨工业大学(深圳) | Preparation method and application of nanofiltration membrane for efficient magnesium-lithium separation |
CN116531961A (en) * | 2023-07-04 | 2023-08-04 | 中国农业大学 | Positively charged nanofiltration membrane for removing uranium and cesium in nuclear radioactive wastewater and preparation method thereof |
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US4992178A (en) * | 1987-02-26 | 1991-02-12 | Tech-Sep | Inorganic ultrafiltration of microfiltration membrane modified by a hydrophilic polymer, its preparation process and its use for the separation of proteins |
US5032282A (en) * | 1989-04-14 | 1991-07-16 | Aligena Ag | Solvent-stable semipermeable composite membranes |
US20030134420A1 (en) * | 2000-02-18 | 2003-07-17 | Lollo Charles Peter | Methods and compositions for gene delivery |
CN101254417A (en) * | 2007-12-14 | 2008-09-03 | 浙江大学 | Crosslinked hyperbranched polyalcohol composite nano filter membrance and method of preparing the same |
CN101791524A (en) * | 2010-03-26 | 2010-08-04 | 南京工业大学 | Asymmetrically-structural ceramic ultrafiltration membrane and preparation method thereof |
US20130112618A1 (en) * | 2011-08-08 | 2013-05-09 | Mamadou S. Diallo | Filtration membranes, related nano and/or micro fibers, composites methods and systems |
CN103551049A (en) * | 2013-10-23 | 2014-02-05 | 北京工业大学 | Layer by layer self-assembly compound nanofiltration membrane based on natural cellulose polyelectrolyte and preparation method |
CN105854640A (en) * | 2016-06-12 | 2016-08-17 | 浙江理工大学 | Preparation method of positively-charged hollow polytetrafluoroethylene composite nanofiltration membrane |
-
2017
- 2017-12-21 CN CN201711397348.9A patent/CN107899432B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US4992178A (en) * | 1987-02-26 | 1991-02-12 | Tech-Sep | Inorganic ultrafiltration of microfiltration membrane modified by a hydrophilic polymer, its preparation process and its use for the separation of proteins |
US5032282A (en) * | 1989-04-14 | 1991-07-16 | Aligena Ag | Solvent-stable semipermeable composite membranes |
US20030134420A1 (en) * | 2000-02-18 | 2003-07-17 | Lollo Charles Peter | Methods and compositions for gene delivery |
CN101254417A (en) * | 2007-12-14 | 2008-09-03 | 浙江大学 | Crosslinked hyperbranched polyalcohol composite nano filter membrance and method of preparing the same |
CN101791524A (en) * | 2010-03-26 | 2010-08-04 | 南京工业大学 | Asymmetrically-structural ceramic ultrafiltration membrane and preparation method thereof |
US20130112618A1 (en) * | 2011-08-08 | 2013-05-09 | Mamadou S. Diallo | Filtration membranes, related nano and/or micro fibers, composites methods and systems |
CN103551049A (en) * | 2013-10-23 | 2014-02-05 | 北京工业大学 | Layer by layer self-assembly compound nanofiltration membrane based on natural cellulose polyelectrolyte and preparation method |
CN105854640A (en) * | 2016-06-12 | 2016-08-17 | 浙江理工大学 | Preparation method of positively-charged hollow polytetrafluoroethylene composite nanofiltration membrane |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109046033A (en) * | 2018-07-20 | 2018-12-21 | 南京理工大学 | Polyethyleneimine/carboxymethyl chitosan composite nanometer filtering film and preparation method thereof |
CN109046033B (en) * | 2018-07-20 | 2021-06-22 | 南京理工大学 | Polyethyleneimine/carboxymethyl chitosan composite nanofiltration membrane and preparation method thereof |
CN109553184A (en) * | 2018-12-29 | 2019-04-02 | 殷伟卿 | A kind of novel MBR flat-plate separation film, MBR flat sheet membrane module and its application |
CN109553184B (en) * | 2018-12-29 | 2024-04-02 | 殷伟卿 | MBR (Membrane biological reactor) flat plate separation membrane, MBR flat plate membrane module and application thereof |
CN109776831A (en) * | 2019-03-20 | 2019-05-21 | 福州大学 | A kind of fast preparation method of self-supporting hydroxide film and metal organic framework film |
CN115105973A (en) * | 2022-06-28 | 2022-09-27 | 哈尔滨工业大学(深圳) | Preparation method and application of nanofiltration membrane for efficient magnesium-lithium separation |
CN116531961A (en) * | 2023-07-04 | 2023-08-04 | 中国农业大学 | Positively charged nanofiltration membrane for removing uranium and cesium in nuclear radioactive wastewater and preparation method thereof |
CN116531961B (en) * | 2023-07-04 | 2023-09-19 | 中国农业大学 | Positively charged nanofiltration membrane for removing uranium and cesium in nuclear radioactive wastewater and preparation method thereof |
Also Published As
Publication number | Publication date |
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CN107899432B (en) | 2019-08-23 |
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