TWI658070B - 微孔性聚醯胺－醯亞胺膜 - Google Patents
微孔性聚醯胺－醯亞胺膜 Download PDFInfo
- Publication number
- TWI658070B TWI658070B TW103139535A TW103139535A TWI658070B TW I658070 B TWI658070 B TW I658070B TW 103139535 A TW103139535 A TW 103139535A TW 103139535 A TW103139535 A TW 103139535A TW I658070 B TWI658070 B TW I658070B
- Authority
- TW
- Taiwan
- Prior art keywords
- microporous membrane
- film
- membrane
- psi
- seconds
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 49
- 229920002312 polyamide-imide Polymers 0.000 title description 3
- 239000004962 Polyamide-imide Substances 0.000 title description 2
- 239000012982 microporous membrane Substances 0.000 claims abstract description 50
- 229920000642 polymer Polymers 0.000 claims abstract description 24
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 102
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- DFUYAWQUODQGFF-UHFFFAOYSA-N 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane Chemical compound CCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F DFUYAWQUODQGFF-UHFFFAOYSA-N 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 41
- 239000002904 solvent Substances 0.000 description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000001878 scanning electron micrograph Methods 0.000 description 15
- 238000009472 formulation Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 14
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 13
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229920006254 polymer film Polymers 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 229940059260 amidate Drugs 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- 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 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- AZUYLZMQTIKGSC-UHFFFAOYSA-N 1-[6-[4-(5-chloro-6-methyl-1H-indazol-4-yl)-5-methyl-3-(1-methylindazol-5-yl)pyrazol-1-yl]-2-azaspiro[3.3]heptan-2-yl]prop-2-en-1-one Chemical compound ClC=1C(=C2C=NNC2=CC=1C)C=1C(=NN(C=1C)C1CC2(CN(C2)C(C=C)=O)C1)C=1C=C2C=NN(C2=CC=1)C AZUYLZMQTIKGSC-UHFFFAOYSA-N 0.000 description 1
- 229920003997 Torlon® Polymers 0.000 description 1
- 239000013504 Triton X-100 Substances 0.000 description 1
- 229920004890 Triton X-100 Polymers 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
- B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
-
- 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
- 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
- B01D2323/00—Details relating to membrane preparation
- B01D2323/219—Specific solvent system
- B01D2323/22—Specific non-solvents or non-solvent system
-
- 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
-
- 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
- B01D2325/022—Asymmetric membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/04—Characteristic thickness
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361904029P | 2013-11-14 | 2013-11-14 | |
| US61/904,029 | 2013-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201522427A TW201522427A (zh) | 2015-06-16 |
| TWI658070B true TWI658070B (zh) | 2019-05-01 |
Family
ID=52021427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103139535A TWI658070B (zh) | 2013-11-14 | 2014-11-14 | 微孔性聚醯胺－醯亞胺膜 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US10532329B2 (enExample) |
| JP (1) | JP6653649B2 (enExample) |
| TW (1) | TWI658070B (enExample) |
| WO (1) | WO2015073820A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6653649B2 (ja) | 2013-11-14 | 2020-02-26 | インテグリス・インコーポレーテッド | 微孔性ポリアミドイミド膜 |
| WO2015153574A1 (en) * | 2014-04-02 | 2015-10-08 | Entegris, Inc. | Thermally cross-linked poly(amide-imide) filter membrane |
| EP3421117A1 (en) | 2017-06-28 | 2019-01-02 | 3M Innovative Properties Company | Polyamide flat sheet membranes with microporous surface structure for nanoparticle retention |
| WO2020106912A1 (en) | 2018-11-21 | 2020-05-28 | Fujifilm Electronic Materials U.S.A., Inc. | Chemical liquid manufacturing apparatus and manufacturing method of chemical liquid |
| JP7305777B2 (ja) * | 2019-02-27 | 2023-07-10 | インテグリス・インコーポレーテッド | ポリイミド含有ろ過膜、フィルター及び方法 |
| JP7384922B2 (ja) * | 2019-03-15 | 2023-11-21 | インテグリス・インコーポレーテッド | 複合中空糸ならびに関連する方法および製品 |
| JP7772693B2 (ja) * | 2019-10-01 | 2025-11-18 | インテグリス・インコーポレーテッド | 粒子形成が減少した膜 |
| WO2023043935A1 (en) * | 2021-09-20 | 2023-03-23 | Celgard, Llc | Dry-process membrane for filtration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900449A (en) * | 1987-05-20 | 1990-02-13 | Gelman Sciences | Filtration membranes and method of making the same |
| TW201041643A (en) * | 2009-04-13 | 2010-12-01 | Entegris Inc | Porous composite membrane |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59190488A (ja) | 1983-04-11 | 1984-10-29 | Tochigi Fuji Ind Co Ltd | 歯車ポンプ |
| JPS6214905A (ja) * | 1985-07-15 | 1987-01-23 | Fuji Photo Film Co Ltd | 微孔性膜の製造方法 |
| JPS62258707A (ja) * | 1985-12-23 | 1987-11-11 | ジエルマン サイエンシス インコ−ポレ−テツド | 濾過膜およびその製法 |
| ATE66633T1 (de) | 1985-12-23 | 1991-09-15 | Gelman Sciences Inc | Filtermembran und verfahren zu ihrer herstellung. |
| JP2530133B2 (ja) * | 1986-12-02 | 1996-09-04 | 富士写真フイルム株式会社 | 微孔性膜 |
| JP2865799B2 (ja) | 1990-04-25 | 1999-03-08 | 株式会社日立製作所 | 冷凍サイクル装置 |
| JP2961629B2 (ja) * | 1991-05-27 | 1999-10-12 | 富士写真フイルム株式会社 | 精密濾過膜の製法 |
| JPH06165819A (ja) * | 1992-04-08 | 1994-06-14 | Toyobo Co Ltd | 血液浄化用中空糸膜 |
| JPH07232044A (ja) | 1993-01-28 | 1995-09-05 | Mitsubishi Rayon Co Ltd | 多孔質膜及びその製造方法 |
| US7829186B2 (en) | 2003-09-25 | 2010-11-09 | Daicel Chemical Industries, Ltd. | Porous films with chemical resistance |
| JP4904794B2 (ja) * | 2005-12-05 | 2012-03-28 | 東洋紡績株式会社 | 多孔質膜及びこれを用いたフレキシブルプリント回路板 |
| KR20100040721A (ko) | 2007-06-15 | 2010-04-20 | 미쓰비시 세이시 가부시키가이샤 | 다공질 시트, 전기 화학 소자용 세퍼레이터 및 다공질 시트의 제조 방법 |
| JP4941865B2 (ja) | 2008-11-05 | 2012-05-30 | 住友電工ファインポリマー株式会社 | 多孔質複層中空糸膜の支持体用チューブ及びこれを用いた多孔質複層中空糸膜 |
| JP2010227757A (ja) | 2009-03-26 | 2010-10-14 | Toray Ind Inc | 複合分離膜 |
| JP5364945B2 (ja) | 2009-09-04 | 2013-12-11 | 住友電工ファインポリマー株式会社 | ポリテトラフルオロエチレン多孔質膜、多孔質フッ素樹脂膜複合体及びそれらの製造方法 |
| US20140008292A1 (en) | 2010-11-29 | 2014-01-09 | Nanyang Technological University | Forward osmosis hollow fiber membrane |
| WO2012112123A1 (en) | 2011-02-14 | 2012-08-23 | National University Of Singapore | Forward osmosis membrane and method of manufacture |
| US9624349B2 (en) * | 2011-12-28 | 2017-04-18 | Toray Battery Separator Film Co., Ltd. | Polyolefin microporous film and method for producing same |
| KR101886681B1 (ko) | 2012-01-06 | 2018-08-08 | 에스케이이노베이션 주식회사 | 폴리올레핀계 미세다공막 및 그 제조방법 |
| JP6653649B2 (ja) | 2013-11-14 | 2020-02-26 | インテグリス・インコーポレーテッド | 微孔性ポリアミドイミド膜 |
-
2014
- 2014-11-14 JP JP2016530977A patent/JP6653649B2/ja active Active
- 2014-11-14 WO PCT/US2014/065699 patent/WO2015073820A1/en not_active Ceased
- 2014-11-14 US US15/032,833 patent/US10532329B2/en active Active
- 2014-11-14 TW TW103139535A patent/TWI658070B/zh active
-
2019
- 2019-11-11 US US16/679,855 patent/US10919001B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900449A (en) * | 1987-05-20 | 1990-02-13 | Gelman Sciences | Filtration membranes and method of making the same |
| TW201041643A (en) * | 2009-04-13 | 2010-12-01 | Entegris Inc | Porous composite membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| US20200070105A1 (en) | 2020-03-05 |
| JP6653649B2 (ja) | 2020-02-26 |
| US10532329B2 (en) | 2020-01-14 |
| TW201522427A (zh) | 2015-06-16 |
| US20160256836A1 (en) | 2016-09-08 |
| WO2015073820A1 (en) | 2015-05-21 |
| US10919001B2 (en) | 2021-02-16 |
| JP2016538122A (ja) | 2016-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10919001B2 (en) | Microporous polyamide-imide membranes | |
| JP2016538122A5 (enExample) | ||
| KR101907475B1 (ko) | 다공질 복층 필터 | |
| US8708161B2 (en) | Polyvinylidene fluoride hollow fiber microporous membrane and process for production of the same | |
| CN213286373U (zh) | 液体可流动多孔滤膜、滤筒和过滤器 | |
| CN113842792A (zh) | 一种除病毒用不对称的pes滤膜及其制备方法 | |
| JP6338054B2 (ja) | 多孔質フィルタの製造方法 | |
| US9610548B2 (en) | Composite porous polymeric membrane with high void volume | |
| US9415347B2 (en) | Asymmetric membranes | |
| WO2007119508A1 (ja) | ポリテトラフルオロエチレン多孔質膜の製造方法とフィルター濾材ならびにフィルターユニット | |
| CA2650680A1 (en) | Gas separation membrane | |
| JP2017538579A (ja) | ポリフッ化ビニリデンの微多孔質平膜 | |
| CN117482752B (zh) | 一种各向异性微滤膜及其制备方法和应用 | |
| WO2024162331A1 (ja) | ポリオレフィン微多孔膜 | |
| JP2014042869A (ja) | 多孔質複層フィルター | |
| TWI637988B (zh) | 經塗佈ｐｔｆｅ膜 | |
| KR20160123426A (ko) | 투과유량 특성이 우수한 폴리에테르술폰계 다공성 필름, 이의 제조방법 및 이의 용도 | |
| WO2015002001A1 (ja) | 多孔質ポリテトラフルオロエチレン膜及びその製造方法 | |
| TW202335734A (zh) | 多孔質膜積層體 | |
| KR20230015902A (ko) | 다공질막 적층체, 필터 엘리먼트 및 다공질막 적층체의 제조 방법 | |
| TWI909163B (zh) | 不對稱聚合物多孔濾膜及相關方法 | |
| CN117258567A (zh) | 非对称聚合物多孔滤膜及相关方法 | |
| KR20170096692A (ko) | 정삼투막 제조방법 | |
| JP2005296860A (ja) | エアフィルタ濾材 |