JP6280504B2 - 構造的に誘導されるビーディング効果を有する疎水性又は疎油性の微孔性高分子膜 - Google Patents
構造的に誘導されるビーディング効果を有する疎水性又は疎油性の微孔性高分子膜 Download PDFInfo
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- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
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- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- B01D19/00—Degasification of liquids
- B01D19/0031—Degasification of liquids by filtration
-
- 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
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- 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
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0086—Mechanical after-treatment
-
- 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
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
-
- 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
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/04—Hydrophobization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/06—Surface irregularities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Filtering Materials (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Description
θ=2arctan(H/W) (式1)
疎水性又は疎油性の出発高分子膜を準備することと、
出発高分子膜の少なくとも一方の主表面を、機械的、物理的及び/又は化学的な処理によって粗面化することと、
を含む。
出発高分子膜を準備することと、
出発高分子膜の少なくとも一方の主表面を、機械的、物理的及び/又は化学的な処理によって粗面化することと、
続いて先の工程で粗面化された高分子膜を疎水性又は疎油性修飾することと、
を含む。
膜を(独国特許出願公開第10 2010 044 648.3−44号に記載されるように)槽沈殿法(precipitation bath method)に従って作製した後に、下流の疎油化工程において該膜にフッ素含有ポリマーの分散液を含浸させ、続いて該膜をポリマーの架橋によって熱処理した、スポンジ構造を有する疎油性の平板フィルター高分子膜を備える滅菌ベントフィルターを使い捨て発酵容器に入れる。発酵容器のオートクレーブにより、湿気が内部に集積し、冷却後、ベントフィルター上にも凝縮する。最大20μLの水滴が集積し、膜の内側の外主表面に付着する。より大きい水滴体積(>20μL)であれば、その重量により表面からの滑落を引き起こし、ベント域を覆わなくなる。上述の水滴の付着によって、水滴を含まない(free)膜表面と比べて空気透過性が低減し、そのため発酵槽の破裂を防ぐのに必要な気流をもたらすのにより大きな通気域が必要となる。
初めに1%濃度のBSA溶液(BSA=ウシ血清アルブミン)を反応容器に投入し、媒体を激しく撹拌することで、飛散させ、ポリフッ化ビニリデン(PVDF、細孔径1.2μm)で構成される疎油性通気フィルターへと導く。疎水性フィルター材料は媒体の膜への浸透を防ぐ。しかしながら、水に対する媒体の表面張力を低減することで、PVDF平板フィルター膜の内側の外主表面で液体の拡散が起こり、空気透過性が低減する。
5μL体積の超純水の水滴を角度45度の傾斜面に置く(図3を参照されたい)。水滴は慣用の滑面を備えるPES膜上の適所に留まり、実施例2のように本発明に従って粗面化された膜の場合、水滴は自発的にドリップオフする。
Claims (11)
- 構造的に誘導されるドリップオフ効果を有する疎水性又は疎油性の多孔質高分子膜であって、
該高分子膜が、ポリスルホン(PSU)、ポリエーテルスルホン(PES)、ポリフェニレンスルフィド(PPS)、ポリベンズイミダゾール(PBI)、ポリエーテルエーテルケトン(PEEK)またはポリアミドイミド(PAI)で構成され、かつ、撥水性微粒子を含まず、
該高分子膜の少なくとも一方の主表面が粗面化されており、該少なくとも一方の粗面化された主表面が、1μm〜20μmの高さの表面粗さを有し、
細孔径が0.1μm〜20μmであり、
水に対する接触角が少なくとも125度であり、
最大50kGyまでの放射線に抵抗性である、高分子膜。 - 前記高分子膜の構成材料がポリエーテルスルホン(PES)である、請求項1に記載の高分子膜。
- 前記高分子膜の構成材料が、フッ素含有剤で修飾されている、請求項1または2に記載の高分子膜。
- 前記高分子膜の両主表面が粗面化されており、同じ表面粗さを有する、請求項1から3のいずれかに記載の高分子膜。
- 前記高分子膜の両主表面が粗面化されており、異なる表面粗さを有する、請求項1から3のいずれかに記載の高分子膜。
- 対称又は非対称のスポンジ構造を有する、請求項1〜5のいずれか一項に記載の高分子膜。
- 請求項1〜6のいずれか一項に記載の高分子膜を製造する方法であって、
疎水性又は疎油性の出発高分子膜を準備する工程と、
前記出発高分子膜の少なくとも一方の主表面を、機械的、物理的及び/又は化学的な処理によって粗面化する工程と、を含み、
該出発高分子膜が、ポリスルホン(PSU)、ポリエーテルスルホン(PES)、ポリフェニレンスルフィド(PPS)、ポリベンズイミダゾール(PBI)、ポリエーテルエーテルケトン(PEEK)またはポリアミドイミド(PAI)で構成され、かつ、撥水性微粒子を含まない、
方法。 - 請求項1〜6のいずれか一項に記載の高分子膜を製造する方法であって、
出発高分子膜を準備する工程と、
前記出発高分子膜の少なくとも一方の主表面を、機械的、物理的及び/又は化学的な処理によって粗面化する工程と、
続いて先の工程で粗面化された前記高分子膜を疎水性又は疎油性修飾する工程と、を含み、
該出発高分子膜が、ポリスルホン(PSU)、ポリエーテルスルホン(PES)、ポリフェニレンスルフィド(PPS)、ポリベンズイミダゾール(PBI)、ポリエーテルエーテルケトン(PEEK)またはポリアミドイミド(PAI)で構成され、かつ、撥水性微粒子を含まない、
方法。 - 前記出発高分子膜の構成材料が、フッ素含有剤で修飾されている、請求項7または8に記載の方法。
- ガス状流体の濾過滅菌における請求項1〜7のいずれか一項に記載の高分子膜の使用。
- 含液ベント式システムにおける液体障壁としての請求項1〜7のいずれか一項に記載の高分子膜の使用。
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DE102011121018.4 | 2011-12-13 | ||
DE102011121018A DE102011121018A1 (de) | 2011-12-13 | 2011-12-13 | Hydrophobe bzw. oleophobe mikroporöse Polymermembran mit strukturell induziertem Abperl-Effekt |
PCT/EP2012/004364 WO2013087131A1 (de) | 2011-12-13 | 2012-10-18 | Hydrophobe bzw. oleophobe mikroporöse polymermembran mit strukturell induziertem abperl-effekt |
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DE102013220594A1 (de) * | 2013-10-11 | 2015-04-16 | Continental Teves Ag & Co. Ohg | Ausblaseinheit für eine Vakuumpumpe |
JP6816938B2 (ja) * | 2015-07-27 | 2021-01-20 | 日東電工株式会社 | 撥油性が付与された通気フィルタ |
KR102157364B1 (ko) * | 2015-09-04 | 2020-09-18 | 도쿄 오카 고교 가부시키가이샤 | 다공질막 및 그 제조 방법 |
DE102016013019A1 (de) | 2016-10-31 | 2018-05-03 | Sartorius Stedim Biotech Gmbh | Poröses Flächengebilde, Filterelement, Verfahren zu ihrer Herstellung und ihre Verwendung |
DE102018003481A1 (de) | 2018-04-27 | 2019-10-31 | Sartorius Stedim Biotech Gmbh | Flächengebilde und Filterelement mit hydrophober Trennlage, Verfahren zu ihrer Herstellung und ihre Verwendung |
US20220339567A1 (en) * | 2019-10-24 | 2022-10-27 | Saati S.P.A. | A method for preparing a composite filter medium and the composite filter medium obtained with this method |
WO2021079282A1 (en) * | 2019-10-24 | 2021-04-29 | Saati S.P.A. | A method for preparing a composite filter medium and the composite filter medium obtained with this method |
CN113733699B (zh) * | 2021-09-03 | 2023-04-11 | 天台宏辉过滤科技有限公司 | 一种自洁性液体过滤布及制备方法 |
CN114367205B (zh) * | 2022-01-28 | 2024-04-12 | 山西大学 | 一种疏水疏油复合膜及其制备方法和应用 |
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US5217802A (en) | 1992-03-17 | 1993-06-08 | Millipore Corporation | Hydrophobic polymeric membrane composites |
JPH07145253A (ja) * | 1993-06-30 | 1995-06-06 | Chichibu Onoda Cement Corp | ポリテトラフルオロエチレン成形体の撥水性向上方法 |
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2011
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- 2012-10-18 JP JP2014546338A patent/JP6280504B2/ja active Active
- 2012-10-18 WO PCT/EP2012/004364 patent/WO2013087131A1/de active Application Filing
- 2012-10-18 CN CN201280061458.7A patent/CN103987447B/zh active Active
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EP2790820B1 (de) | 2018-11-28 |
US20150007721A1 (en) | 2015-01-08 |
CN103987447A (zh) | 2014-08-13 |
CN103987447B (zh) | 2017-03-22 |
JP2015505725A (ja) | 2015-02-26 |
WO2013087131A1 (de) | 2013-06-20 |
EP2790820A1 (de) | 2014-10-22 |
US9364796B2 (en) | 2016-06-14 |
DE102011121018A1 (de) | 2013-06-13 |
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