CN117298869A - 对称型聚偏二氟乙烯微滤膜的制备方法及其制备的微滤膜 - Google Patents
对称型聚偏二氟乙烯微滤膜的制备方法及其制备的微滤膜 Download PDFInfo
- Publication number
- CN117298869A CN117298869A CN202311130714.XA CN202311130714A CN117298869A CN 117298869 A CN117298869 A CN 117298869A CN 202311130714 A CN202311130714 A CN 202311130714A CN 117298869 A CN117298869 A CN 117298869A
- Authority
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- Prior art keywords
- polyvinylidene fluoride
- film
- symmetrical
- temperature
- membrane
- 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.)
- Pending
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- 239000012528 membrane Substances 0.000 title claims abstract description 99
- 239000002033 PVDF binder Substances 0.000 title claims abstract description 79
- 229920002981 polyvinylidene fluoride Polymers 0.000 title claims abstract description 79
- 238000001471 micro-filtration Methods 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000005374 membrane filtration Methods 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 239000000654 additive Substances 0.000 claims abstract description 44
- 230000000996 additive effect Effects 0.000 claims abstract description 43
- 239000002904 solvent Substances 0.000 claims abstract description 35
- 238000005266 casting Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000001112 coagulating effect Effects 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000011419 induction treatment Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 15
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 14
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 10
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 9
- 108010025899 gelatin film Proteins 0.000 claims description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 8
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 8
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000011282 treatment Methods 0.000 claims description 6
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 5
- 229920006187 aquazol Polymers 0.000 claims description 4
- 239000012861 aquazol Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004349 Polyvinylpyrrolidone-vinyl acetate copolymer Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract description 16
- 239000013078 crystal Substances 0.000 abstract description 10
- 238000005345 coagulation Methods 0.000 abstract description 8
- 230000015271 coagulation Effects 0.000 abstract description 8
- 229920000642 polymer Polymers 0.000 abstract description 6
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 238000010899 nucleation Methods 0.000 abstract description 2
- 230000006911 nucleation Effects 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 description 25
- 239000000243 solution Substances 0.000 description 21
- 238000007790 scraping Methods 0.000 description 15
- 108090000623 proteins and genes Proteins 0.000 description 12
- 102000004169 proteins and genes Human genes 0.000 description 12
- 238000000635 electron micrograph Methods 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 239000012460 protein solution Substances 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 238000010998 test method Methods 0.000 description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 238000004626 scanning electron microscopy Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- NYEZZYQZRQDLEH-UHFFFAOYSA-N 2-ethyl-4,5-dihydro-1,3-oxazole Chemical compound CCC1=NCCO1 NYEZZYQZRQDLEH-UHFFFAOYSA-N 0.000 description 1
- 208000020312 Thickened skin Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 235000019448 polyvinylpyrrolidone-vinyl acetate copolymer Nutrition 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0018—Thermally induced processes [TIPS]
-
- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0016—Coagulation
- B01D67/00165—Composition of the coagulation baths
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/021—Pore shapes
- B01D2325/0212—Symmetric or isoporous membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/52—Crystallinity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
Description
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311130714.XA CN117298869A (zh) | 2023-09-01 | 2023-09-01 | 对称型聚偏二氟乙烯微滤膜的制备方法及其制备的微滤膜 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311130714.XA CN117298869A (zh) | 2023-09-01 | 2023-09-01 | 对称型聚偏二氟乙烯微滤膜的制备方法及其制备的微滤膜 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN117298869A true CN117298869A (zh) | 2023-12-29 |
Family
ID=89283919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311130714.XA Pending CN117298869A (zh) | 2023-09-01 | 2023-09-01 | 对称型聚偏二氟乙烯微滤膜的制备方法及其制备的微滤膜 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117298869A (zh) |
-
2023
- 2023-09-01 CN CN202311130714.XA patent/CN117298869A/zh active Pending
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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 | ||
CB02 | Change of applicant information |
Country or region after: China Address after: Building 19, No. 113, Tongtao North Road, Jiulongpo District, Chongqing 401328 Applicant after: Maiborui new material technology (Chongqing) Co.,Ltd. Applicant after: MAIBORUI BIOFILM TECHNOLOGY (NANTONG) CO.,LTD. Address before: 226010 building 3, No. 3, Hongxing East Road, Nantong Economic and Technological Development Zone, Nantong City, Jiangsu Province Applicant before: MAIBORUI BIOFILM TECHNOLOGY (NANTONG) CO.,LTD. Country or region before: China Applicant before: Maiborui new material technology (Chongqing) Co.,Ltd. |
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CB02 | Change of applicant information |