JP7369577B2 - ポリスルホン多孔質中空糸膜の製造法 - Google Patents
ポリスルホン多孔質中空糸膜の製造法 Download PDFInfo
- Publication number
- JP7369577B2 JP7369577B2 JP2019177320A JP2019177320A JP7369577B2 JP 7369577 B2 JP7369577 B2 JP 7369577B2 JP 2019177320 A JP2019177320 A JP 2019177320A JP 2019177320 A JP2019177320 A JP 2019177320A JP 7369577 B2 JP7369577 B2 JP 7369577B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- weight
- polysulfone
- water
- 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.)
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- 239000012528 membrane Substances 0.000 title claims description 62
- 239000012510 hollow fiber Substances 0.000 title claims description 43
- 229920002492 poly(sulfone) Polymers 0.000 title claims description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 44
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 27
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 17
- 238000009987 spinning Methods 0.000 claims description 13
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 7
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 6
- 239000011550 stock solution Substances 0.000 claims description 6
- 238000005191 phase separation Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 238000000578 dry spinning Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 239000000706 filtrate Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000001891 gel spinning Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920000491 Polyphenylsulfone Polymers 0.000 description 1
- -1 and the like Polymers 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000012498 ultrapure water 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
- B01D69/08—Hollow fibre 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
- B01D67/0002—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
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
-
- 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
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
ポリスルホン(Sovay社製品P1700) 16重量%、ポリビニルピロリドン(ISP社製品PVP K-30)11重量%、エチレングリコール 2重量%およびN,N-ジメチルホルムアミド 71重量%よりなる紡糸原液を室温にて調製した。
実施例において、芯液としてN,N-ジメチルホルムアミド 100重量%のものが用いられたところ、内壁の剥がれはみられなかったものの、ろ過水中に異物の混入が確認され、ろ過水濁度/NTUは1.91であった。中空糸膜断面および中空糸膜内表面をSEMで観察した画像は、図2(a)~(b)に示される。
実施例において、芯液としてイソプロピルアルコール 5重量%、N,N-ジメチルホルムアミド 95重量%からなるものが用いられたところ、内壁の剥がれはみられなかったものの、ろ過水中に異物の混入が確認され、ろ過水濁度/NTUは3.71であった。中空糸膜断面および中空糸膜内表面をSEMで観察した画像は、図3(a)~(b)に示される。
実施例において、芯液としてイソプロピルアルコール 50重量%、N,N-ジメチルホルムアミド 50重量%からなるものが用いられたところ、ろ過水中に異物の混入は確認されず、ろ過水濁度/NTUは0.27であったが、内壁の剥がれが確認された。中空糸膜断面および中空糸膜内表面をSEMで観察した画像は、図4(a)~(b)に示される。
Claims (1)
- ポリスルホン12~25重量%、ポリビニルピロリドン5~20重量%およびエチレングリコール1~5重量%を含有するN,N-ジメチルホルムアミド溶液よりなる紡糸原液を、イソプロピルアルコール25~30重量%およびN,N-ジメチルホルムアミド75~70重量%の混合液を芯液として、2重環状ノズルを用いて非溶媒誘起相分離法による乾湿式紡糸を行うことを特徴とするポリスルホン多孔質中空糸膜の製造法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018188159 | 2018-10-03 | ||
| JP2018188159 | 2018-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2020054994A JP2020054994A (ja) | 2020-04-09 |
| JP7369577B2 true JP7369577B2 (ja) | 2023-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019177320A Active JP7369577B2 (ja) | 2018-10-03 | 2019-09-27 | ポリスルホン多孔質中空糸膜の製造法 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7369577B2 (ja) |
| CN (1) | CN110975641B (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7636241B2 (ja) * | 2021-04-06 | 2025-02-26 | Nok株式会社 | ポリスルホン中空糸膜の製造方法 |
| CN113244784A (zh) * | 2021-04-27 | 2021-08-13 | 陕西禹慧智通环保科技有限公司 | 一种多孔疏水性微孔膜及其制备方法、应用 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119833A (ja) | 2000-10-16 | 2002-04-23 | Nok Corp | 乾湿式紡糸法多孔質中空糸膜の洗浄方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54151574A (en) * | 1978-05-20 | 1979-11-28 | Nippon Zeon Co Ltd | Manufacture of acrylonitrile hollow fiber |
| JP3232611B2 (ja) * | 1991-12-17 | 2001-11-26 | エヌオーケー株式会社 | 多孔質ポリスルホン中空糸膜の製造法 |
| CN101402023A (zh) * | 2008-10-24 | 2009-04-08 | 东华大学 | 一种抗菌平板分离膜及其制备方法 |
| CN101396641B (zh) * | 2008-10-31 | 2013-06-05 | 北京坎普尔环保技术有限公司 | 复合热致相分离制膜方法 |
| CN102580577B (zh) * | 2012-03-02 | 2014-04-16 | 天津工业大学 | 一种增强型聚丙烯腈中空纤维膜的制备方法 |
| KR101758906B1 (ko) * | 2015-01-22 | 2017-07-17 | 경상대학교산학협력단 | 이중층 한외여과 중공사막 및 그 제조방법 |
| JP2017051880A (ja) * | 2015-09-07 | 2017-03-16 | Nok株式会社 | 非溶剤誘起相分離法用製膜原液およびこれを用いた多孔質中空糸膜の製造方法 |
-
2019
- 2019-09-27 JP JP2019177320A patent/JP7369577B2/ja active Active
- 2019-09-29 CN CN201910930635.4A patent/CN110975641B/zh active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119833A (ja) | 2000-10-16 | 2002-04-23 | Nok Corp | 乾湿式紡糸法多孔質中空糸膜の洗浄方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110975641A (zh) | 2020-04-10 |
| JP2020054994A (ja) | 2020-04-09 |
| CN110975641B (zh) | 2021-12-28 |
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