JP5733209B2 - 分離膜およびその製造方法 - Google Patents
分離膜およびその製造方法 Download PDFInfo
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- JP5733209B2 JP5733209B2 JP2011526349A JP2011526349A JP5733209B2 JP 5733209 B2 JP5733209 B2 JP 5733209B2 JP 2011526349 A JP2011526349 A JP 2011526349A JP 2011526349 A JP2011526349 A JP 2011526349A JP 5733209 B2 JP5733209 B2 JP 5733209B2
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- UWCPYKQBIPYOLX-UHFFFAOYSA-N benzene-1,3,5-tricarbonyl chloride Chemical compound ClC(=O)C1=CC(C(Cl)=O)=CC(C(Cl)=O)=C1 UWCPYKQBIPYOLX-UHFFFAOYSA-N 0.000 description 1
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- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
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- 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
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- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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- Chemical Kinetics & Catalysis (AREA)
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Description
1c 分離層不存在部(基材露出部)
SM、1SM、2SM、3SM、4SM、8SM、9SM、10SM 分離膜
2、32、82、92、102 分離層
3 第1の分離層
4 第2の分離層
12a、32a 所定厚み部
12b、22b、32b、42b 薄厚み部
50、1150 バーコーター
52 基材供給ロール
53 バックアップロール
54、1154 コーティングバー
54a 所定直径部
54b 凸部
55 サイド板
56、1156 分離層形成用の溶液(高分子溶液)
56a 溶液のバンク
121 基材
122 塗膜
123 カール
124 丸まったカール
a 基材の幅
b1、b2 薄厚み部の幅
c1、c2 分離層不存在部(基材露出部)の幅
MP 判定基台
Cs カール開始位置
Be 基材の端部
Bep カール発生時における基材端部の垂線と判定基台との交点
L カール長
H カールの浮き上がり高さ
Claims (15)
- 流体通過性を有する長尺の基材と該基材の表面に形成された分離層からなる分離膜であって、前記分離層が、高分子溶液の塗布層が凝固されることにより形成されたものであり、所定の厚みを有する所定厚み部と該所定厚み部の幅方向の両端からその外側にそれぞれ位置する前記所定の厚みよりも薄い厚みを有する薄厚み部からなり、かつ、該それぞれの薄厚み部の幅方向の外側端と前記基材の幅方向の両側端との間に、前記基材のみが存在し前記分離層が存在しない分離層不存在部を有する分離膜。
- 前記基材が、不織布で形成され、前記分離層が、ポリスルホン、ポリフッ化ビニリデンおよび酢酸セルロースのうちの少なくとも1種から形成されている請求項1に記載の分離膜。
- 前記分離層の表面に、実質的に均一な厚みをもって形成されている第2の分離層が存在する請求項1に記載の分離膜。
- 前記基材が、不織布で形成され、前記分離層が、ポリスルホンで形成され、前記第2の分離層が、ポリアミドで形成されている請求項3に記載の分離膜。
- 前記分離層の表面に、実質的に均一な厚みをもって形成されている流体通過性を有する保護層が存在する請求項1に記載の分離膜。
- 前記第2の分離層の表面に、実質的に均一な厚みをもって形成されている流体通過性を有する保護層が存在する請求項3に記載の分離膜。
- 前記薄厚み部の厚みが、その幅方向に、実質的に同じであり、あるいは、その両外端に近いほど薄くなるように傾斜して、または、階段状に変化している請求項1に記載の分離膜。
- 前記薄厚み部の厚みが、前記所定厚み部の厚みの5乃至95%である請求項1に記載の分離膜。
- 前記薄厚み部の幅が、前記基材の幅の0.1乃至10 %である請求項1に記載の分離膜。
- 前記分離層不存在部の幅が、前記基材の幅の0.1乃至10 %である請求項1に記載の分離膜。
- 連続的に搬送される流体通過性を有する長尺の基材の表面に、分離層を形成するための高分子溶液をバーコーターに備えられたコーティングバーにより塗布する高分子溶液塗布工程と、該高分子溶液塗布工程を通過した前記基材を、該基材の表面に塗布された前記高分子溶液を凝固させる凝固液中に浸漬させ、前記基材の表面に分離層を形成する分離層形成工程からなる分離膜の製造方法であって、前記高分子溶液塗布工程において、前記基材の表面に、該基材の幅方向の両端部に前記高分子溶液が塗布されない高分子溶液不塗布部を形成するとともに、前記コーティングバーとして、前記高分子溶液と接触する表面の左右両端部に凸部を有するコーティングバーを用い、前記分離層形成工程において形成される前記分離層が、所定の厚みを有する所定厚み部と該所定厚み部の両端と前記高分子溶液不塗布部のそれぞれの内側端との間に前記所定厚み部の厚みよりも薄い厚みを有する薄厚み部を有するように、前記基材の表面に、前記高分子溶液を塗布する分離膜の製造方法。
- 前記分離層形成工程において形成された前記分離層の表面に、実質的に均一な厚みをもって第2の分離層を形成する第2の分離層形成工程を有する請求項11に記載の分離膜の製造方法。
- 前記分離層形成工程において前記分離層の表面に、実質的に均一な厚みをもって流体通過性を有する保護層を形成する保護膜形成工程を有する請求項11に記載の分離膜の製造方法。
- 前記第2の分離層形成工程において形成された前記第2の分離層の表面に、実質的に均一な厚みをもって流体通過性を有する保護層を形成する保護層形成工程を有する請求項12に記載の分離膜の製造方法。
- 前記バーコーターにおいて、前記コーティングバーの前記所定厚み部を形成する表面と前記薄厚み部を形成する前記凸部の表面との間の前記凸部の高さが、前記基材の表面と前記コーティングバーの前記所定厚み部を形成する表面との間の距離の5乃至95%である請求項11に記載の分離膜の製造方法。
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US (1) | US9617683B2 (ja) |
EP (1) | EP2551010B1 (ja) |
JP (1) | JP5733209B2 (ja) |
KR (1) | KR101810708B1 (ja) |
CN (1) | CN102781559B (ja) |
WO (1) | WO2011118486A1 (ja) |
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JP6201324B2 (ja) * | 2013-01-28 | 2017-09-27 | 日油株式会社 | 多孔質濾過膜用ファウリング抑制剤組成物、並びに多孔質濾過膜及びその製造方法 |
KR101450723B1 (ko) * | 2013-02-21 | 2014-10-17 | 한국과학기술연구원 | 유기 단량체 간의 가교를 이용한 다층 박막 기반의 역삼투 분리막 및 그 제조방법 |
KR102254401B1 (ko) * | 2013-10-30 | 2021-05-24 | 도레이 카부시키가이샤 | 분리막, 시트 유로재 및 분리막 엘리먼트 |
JP6305729B2 (ja) * | 2013-11-05 | 2018-04-04 | 日東電工株式会社 | 複合半透膜 |
GB2531001B (en) * | 2014-10-06 | 2019-06-05 | Canon Kk | Method and apparatus for vector encoding in video coding and decoding |
JP6456671B2 (ja) | 2014-12-16 | 2019-01-23 | 日東電工株式会社 | 多孔性支持体、複合半透膜、及びスパイラル型分離膜エレメント |
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EP2551010B1 (en) | 2018-10-10 |
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CN102781559A (zh) | 2012-11-14 |
EP2551010A4 (en) | 2014-01-01 |
US20130020251A1 (en) | 2013-01-24 |
WO2011118486A1 (ja) | 2011-09-29 |
KR101810708B1 (ko) | 2017-12-19 |
JPWO2011118486A1 (ja) | 2013-07-04 |
US9617683B2 (en) | 2017-04-11 |
CN102781559B (zh) | 2014-12-17 |
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