KR20170032873A - 이온교환막 및 그 제조방법 - Google Patents
이온교환막 및 그 제조방법 Download PDFInfo
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Abstract
Description
도 2는 도 1을 통해 제조된 이온교환막의 단면모식도,
도 3은 도 2에 따른 이온교환막 중 A 부분의 부분확대모식도,
도 4는 도 3 중 B 영역의 부분 확대도,
도 5는 본 발명의 일 실시예에 의한 이온교환막의 단면도, 그리고
도 6은 본 발명의 일 실시예에 의한 이온교환막의 단면도이다.
| 실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예6 | |
| 단일 지지섬유매트 두께(㎛) | 33 | 33 | 33 | 33 | 33 | 45 |
| 단일 이온교환섬유매트 두께(㎛) | 17 | 17 | 17 | 17 | 17 | 5 |
| 지지섬유매트 : 이온교환섬유매트 중량비 | 1:1 | 1:0.5 | 1:0.8 | 1:1.4 | 1:1.6 | 1:1 |
| 지지섬유매트 : 이온교환섬유매트 두께비 | 1:0.51 | 1:0.51 | 1:0.51 | 1:0.51 | 1:0.51 | 1:0.11 |
| 치수변화도(%) | 3 | 2 | 2 | 6 | 15 | 1 |
| 에너지효율(%) | 100 | 80 | 97 | 102 | 104 | 69 |
| 에너지효율2% 감소했을 때 사이클 수(회) | 802 | 846 | 825 | 760 | 594 | 863 |
| 실시예7 | 실시예8 | 비교예1 | 비교예2 | |
| 단일 지지섬유매트 두께(㎛) | 29.4 | 26 | 0 | 100 |
| 단일 이온교환섬유매트 두께(㎛) | 20.6 | 24 | 100 | 0 |
| 지지섬유매트 : 이온교환섬유매트 중량비 | 1:1 | 1:1 | - | - |
| 지지섬유매트 : 이온교환섬유매트 두께비 | 1:0.7 | 1:0.92 | - | - |
| 치수변화도(%) | 5 | 22 | 68 | 1 |
| 에너지효율(%) | 105 | 110 | 22 | 92 |
| 에너지효율2% 감소했을 때 사이클 수(회) | 799 | 640 | 13 | 730 |
22, 24: 이온교환섬유매트
Claims (16)
- (1) 지지섬유 형성용액 및 이온교환섬유 형성용액 각각을 전기방사하여 지지섬유가 축적된 지지섬유매트(mat) 및 이온교환섬유가 축적된 이온교환섬유매트(mat)가 교호적층된 적층체를 제조하는 단계;를 포함하는 이온교환막의 제조방법.
- 제1항에 있어서,
상기 지지섬유 형성용액은 지지섬유 형성성분을 포함하고,
상기 지지섬유 형성성분은 폴리이미드(polyimides), 폴리아믹스산(polyamic acid), 폴리카프로락톤(polycarprolactone), 폴리에테르이미드(polyetherimide), 나일론(nylon), 폴리아라미드(polyaramid), 폴리벤질글루타메이트(polybenzyl-glutamate), 폴리페닐렌테레프탈아마이드(polyphenyleneterephthalamide), 폴리아닐린(polyaniline), 폴리아크릴로니트릴(polyacrylonitrile), 폴리에틸렌옥사이드(polyethylene oxide), 폴리스티렌(polystyrene), 셀룰로오스(cellulose), 폴리메틸메타크릴레이트(polymethylmethacrylate), 폴리락틱산(polylactic acid; PLA), 폴리글리콜산(polyglycolic acid; PGA), 폴리락틱-co-글리콜산, 폴리{폴리(에틸렌옥사이드)테레프탈레이트-co-부틸렌테레프탈레이트}(PEOT/PBT), 폴리포스포에스터(polyphosphoester; PPE), 폴리포스파젠(PPA), 폴리안하이드라이드(Polyanhydride; PA), 폴리오르쏘에스터{poly(ortho ester; POE}, 폴리(프로필렌푸마레이트)-디아크릴레이트{poly(propylene fumarate)-diacrylate; PPF-DA}, 폴리비닐알콜, 폴리에스테르, 폴리우레탄, 폴리염화비닐, 폴리테트라플로우로에틸렌(PTFE, polytetra fluoroethylene), 폴리에틸렌테트라플로우로에틸렌(ETFE, polyethylene tetrafluoro ethylene), 폴리비닐리덴플루오라이드(PVDF, polyvinylidene fluoride), 에틸렌클로로트리플로우로에틸렌(ECTFE, Ethylene Chlorotrifluoroethylene) 및 폴리클로로트리플로우로에틸렌(PCTFE, polychlorotrifluoro ethylene) 및 폴리(스티렌-co-무수말레산)로 이루어진 군에서 선택된 1종 이상인 이온교환막의 제조방법. - 제2항에 있어서,
상기 지지섬유 형성용액은 지지섬유 형성성분을 5 ~ 30 중량%로 포함하며,
상기 이온교환섬유 형성용액은 양이온성 이온교환섬유 형성성분 또는 음이온성 이온교환섬유 형성성분을 5 ~ 60 중량%로 포함하는 이온교환막의 제조방법. - 제1항에 있어서, 상기 이온교환섬유 형성용액은
양이온성 이온교환섬유 형성성분을 포함하는 제1 이온교환섬유 형성용액 및 음이온성 이온교환섬유 형성성분을 포함하는 제2 이온교환섬유 형성용액을 포함하며,
상기 제1 이온교환섬유 형성용액 및 제2 이온교환섬유 형성용액 각각은 분리된 별도의 이온교환섬유매트를 형성하도록 전기방사 되는 이온교환막의 제조방법. - 제1항에 있어서, (1) 단계 이후,
(2) 상기 적층체에 열 및 압력을 가하여 지지섬유매트에 포함된 적어도 일부의 지지섬유를 용융시키고, 용융된 지지섬유의 적어도 일부를 이온교환섬유매트의 기공에 침투시키는 단계;를 더 포함하는 이온교환막의 제조방법. - 제5항에 있어서,
상기 지지섬유의 융점이 이온교환섬유의 융점보다 낮은 것을 특징으로 하는 이온교환막의 제조방법. - 지지섬유매트; 및 이온교환섬유매트;가 교호적층된 이온교환막.
- 제7항에 있어서,
상기 지지섬유매트 및 이온교환섬유매트 중 어느 하나 이상의 섬유매트는 섬유간 융착되어 형성된 3차원 네트워크 구조의 웹(web) 영역을 포함하는 이온교환막. - 제7항에 있어서,
상기 지지섬유매트 및 이온교환섬유매트는 중량비가 1: 0.8 ~ 1.5이며, 단일의 지지섬유매트 및 단일의 이온교환섬유 매트의 두께비가 1: 0.2 ~ 0.8인 이온교환막. - 제7항에 있어서,
지지섬유매트에 포함된 지지섬유의 평균직경은 0.1 ~ 100 ㎛이고, 상기 이온교환섬유매트에 포함된 이온교환섬유의 평균직경은 100 ~ 2000㎚인 이온교환막. - 제7항에 있어서,
단일의 지지섬유매트 평균공경은 0.1 ~ 10 ㎛이고, 단일의 이온교환섬유매트 평균공경은 0.1 ~ 1 ㎛인 이온교환막. - 지지섬유매트; 및 이온교환섬유매트;가 교호적층되며,
상기 이온교환섬유매트에 구비된 이온교환섬유 중 일 이온교환섬유의 표면 적어도 일부분에는 인접하여 배치된 지지섬유매트에 구비된 지지섬유가 용융되어 융착된 융착부를 포함하는 이온교환막. - 제12항에 있어서,
상기 지지섬유매트 및 이온교환섬유매트는 중량비가 1: 0.8 ~ 1.5이며, 단일의 지지섬유매트 및 단일의 이온교환섬유 매트의 두께비가 1: 0.2 ~ 0.8인 이온교환막. - 이온교환섬유매트; 및
상기 이온교환섬유 매트의 섬유간 공간을 채워 이온교환섬유를 지지하는 지지체;를 포함하는 이온교환막. - 제14항에 있어서,
상기 이온교환막은 기공도가 85 % 이하인 이온교환막. - 제7항 내지 제15항 중 어느 한 항에 있어서,
상기 이온교환막은 액체용 필터, 공기용 필터, 축전식 탈염장치(capacitive deionization, CDI), 전기투석(electrodialysis, ED) 또는 전지분리막 용도인 이온교환막.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914223A (zh) * | 2018-09-05 | 2018-11-30 | 东华大学 | 一种静电纺丝相位补偿铺网控制系统 |
| KR20190114415A (ko) | 2018-03-30 | 2019-10-10 | 주식회사 이노켐텍 | 이온교환막, 이온교환막의 제조방법 및 이온교환장치 |
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| JP2009202116A (ja) * | 2008-02-28 | 2009-09-10 | Kurita Water Ind Ltd | フィルタ及び液処理方法 |
| JP2009245639A (ja) * | 2008-03-28 | 2009-10-22 | Asahi Glass Co Ltd | 固体高分子形燃料電池用電解質膜、その製造方法及び固体高分子形燃料電池用膜電極接合体 |
| KR20140036609A (ko) | 2012-09-17 | 2014-03-26 | 한국전력공사 | 담수화 방법 및 담수화 장치 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20190114415A (ko) | 2018-03-30 | 2019-10-10 | 주식회사 이노켐텍 | 이온교환막, 이온교환막의 제조방법 및 이온교환장치 |
| CN108914223A (zh) * | 2018-09-05 | 2018-11-30 | 东华大学 | 一种静电纺丝相位补偿铺网控制系统 |
| CN108914223B (zh) * | 2018-09-05 | 2021-06-04 | 东华大学 | 一种静电纺丝相位补偿铺网控制系统 |
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| KR102020774B1 (ko) | 2019-09-11 |
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