JP2008214462A - 複合多孔質膜及びその製造方法 - Google Patents
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Abstract
【解決手段】繊維の織布、繊維の不織布、金属多孔質体、無機物質多孔体の中のいずれか1種からなる多孔質基材と、該多孔質基材中で三次元網目構造をなす高分子とで複合多孔質膜とする。この複合多孔質膜は、前記高分子を溶解した溶液を前記多孔質基材に含浸させ、その後、該高分子を延伸させながら凝固させることで得られる。なお、多孔質基材、高分子の好適な例としては、それぞれ、ガラス繊維不織布、ポリベンズイミダゾールが挙げられる。
【選択図】図1
Description
前記多孔質基材は、繊維の織布、繊維の不織布、金属多孔質体、無機物質多孔体の中のいずれか1種からなり、
前記高分子は、前記多孔質基材中で三次元網目構造をなし、
空隙率が80〜98体積%であり、且つ平均孔径が1.0μm以下であることを特徴とする。
高分子を第1溶媒に溶解して溶液を調製する工程と、
繊維の織布、繊維の不織布、金属多孔質体、無機物質多孔体の中のいずれか1種からなる多孔質基材に、前記溶液を含浸させる工程と、
前記溶液を含浸した前記多孔質基材に、前記第1溶媒に比して前記高分子の溶解度が小さい第2溶媒を接触させて前記高分子を延伸させながら凝固させて三次元網目構造を形成させ、空隙率を80〜98体積%、平均孔径を1.0μm以下とする工程と、
を有することを特徴とする。
Claims (9)
- 多孔質基材と高分子とが複合化されてなる複合多孔質膜であって、
前記多孔質基材は、繊維の織布、繊維の不織布、金属多孔質体、無機物質多孔体の中のいずれか1種からなり、
前記高分子は、前記多孔質基材中で三次元網目構造をなし、
空隙率が80〜98体積%であり、且つ平均孔径が1.0μm以下であることを特徴とする複合多孔質膜。 - 請求項1記載の複合多孔質膜において、前記多孔質基材が繊維の不織布からなることを特徴とする複合多孔質膜。
- 請求項1又は2記載の複合多孔質膜において、前記高分子が、6員環と5員複素環との縮環化合物を繰り返し単位に含むものであることを特徴とする複合多孔質膜。
- 請求項1〜3のいずれか1項に記載の複合多孔質膜において、前記高分子が、繰り返し単位にエーテル結合を有するものであることを特徴とする複合多孔質膜。
- 多孔質基材と高分子とが複合化されてなる複合多孔質膜の製造方法であって、
高分子を第1溶媒に溶解して溶液を調製する工程と、
繊維の織布、繊維の不織布、金属多孔質体、無機物質多孔体の中のいずれか1種からなる多孔質基材に、前記溶液を含浸させる工程と、
前記溶液を含浸した前記多孔質基材に、前記第1溶媒に比して前記高分子の溶解度が小さい第2溶媒を接触させて前記高分子を延伸させながら凝固させて三次元網目構造を形成させ、空隙率を80〜98体積%、平均孔径を1.0μm以下とする工程と、
を有することを特徴とする複合多孔質膜の製造方法。 - 請求項5記載の製造方法において、前記溶液を含浸した前記多孔質基材に対して前記第2溶媒の蒸気を接触させることを特徴とする複合多孔質膜の製造方法。
- 請求項5又は6記載の製造方法において、前記高分子として、6員環と5員複素環との縮環化合物を繰り返し単位に含むものを用いることを特徴とする複合多孔質膜の製造方法。
- 請求項5〜7のいずれか1項に記載の製造方法において、前記高分子として、繰り返し単位にエーテル結合を有するものを用いることを特徴とする複合多孔質膜の製造方法。
- 請求項8記載の製造方法において、前記高分子を凝固させた後、さらに熱処理を行うことを特徴とする複合多孔質膜の製造方法。
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JP2022079662A (ja) * | 2017-06-15 | 2022-05-26 | ダブリュ.エル.ゴア アンド アソシエイツ,インコーポレイティド | 高選択性及び高強度のための高度に強化されたイオノマー膜 |
WO2023195623A1 (ko) * | 2022-04-04 | 2023-10-12 | 코오롱인더스트리 주식회사 | 고분자 전해질막, 이의 제조 방법 및 이를 포함하는 전기 화학 장치 |
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WO2010096704A2 (en) * | 2009-02-19 | 2010-08-26 | Alex Garfield Bonner | Porous interpenetrating polymer network |
US20140120431A1 (en) * | 2011-06-17 | 2014-05-01 | E I Du Pont De Nemours And Company | Composite polymer electrolyte membrane |
JP5870194B2 (ja) * | 2011-09-23 | 2016-02-24 | エンパイア テクノロジー ディベロップメント エルエルシー | 充電型有機ナトリウムポリマー電池 |
US11491765B2 (en) | 2017-07-06 | 2022-11-08 | Lg Chem, Ltd. | Preparation method for composite material |
KR102184386B1 (ko) | 2017-09-15 | 2020-11-30 | 주식회사 엘지화학 | 복합재의 제조 방법 |
CN113214521B (zh) * | 2020-01-21 | 2023-04-18 | 上海鑫珀生物科技有限公司 | 一种质子交换膜及其制备方法 |
CN115609989B (zh) * | 2022-12-20 | 2023-03-28 | 四川省众望科希盟科技有限公司 | 一种低摩擦系数低磨损的聚四氟乙烯密封材料 |
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