KR20170112587A - 내산성이 향상된 나노분리막 및 이의 제조방법 - Google Patents
내산성이 향상된 나노분리막 및 이의 제조방법 Download PDFInfo
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Abstract
Description
| 구분 | 화학식1의 화합물 | 화학식2의 화합물 |
| 함량(중량%) | 함량(중량%) | |
| 실시예1 | 0.5 | 0.5 |
| 실시예2 | 0.05 | 0.5 |
| 실시예3 | 0.15 | 0.5 |
| 실시예4 | 0.3 | 0.5 |
| 실시예5 | 0.8 | 0.5 |
| 실시예6 | 0.9 | 0.5 |
| 실시예7 | 1.1 | 0.5 |
| 실시예8 | 0.5 | 0.1 |
| 실시예9 | 0.5 | 0.3 |
| 실시예10 | 0.5 | 0.4 |
| 실시예11 | 0.5 | 0.8 |
| 실시예12 | 0.5 | 1.2 |
| 실시예13 | 0.5 | 1.6 |
| 비교예1 | 0.5 | - |
| 비교예2 | - | 0.5 |
| 구분 | 초기 | 15 중량% 황산 침지 7일 후 | 염제거율 변화율 | ||
| 유량(gfd) | 염제거율(%) | 유량(gfd) | 염제거율(%) | 염제거율(%) | |
| 실시예1 | 27.9 | 99.4 | 33.3 | 96.4 | -3 |
| 실시예2 | 29.1 | 99.2 | 38.6 | 82.3 | -16.9 |
| 실시예3 | 27.2 | 98.9 | 36.2 | 94.1 | -4.8 |
| 실시예4 | 26.9 | 98.0 | 33.1 | 96.1 | -1.9 |
| 실시예5 | 23.4 | 99.1 | 27.8 | 96.3 | -2.8 |
| 실시예6 | 22.0 | 98.6 | 28.1 | 94.4 | -4.2 |
| 실시예7 | 20.9 | 97.9 | 30.7 | 91.0 | -6.9 |
| 실시예8 | 50.2 | 62.4 | 61.1 | 50.5 | -11.9 |
| 실시예9 | 35.6 | 96.0 | 42.1 | 92.4 | -3.6 |
| 실시예10 | 32.1 | 98.8 | 30.4 | 97.2 | -1.6 |
| 실시예11 | 21.2 | 99.6 | 29.9 | 95.3 | -4.3 |
| 실시예12 | 20.1 | 99.4 | 26.6 | 94.6 | -4.8 |
| 실시예13 | 18.1 | 99.3 | 23.8 | 95.0 | -4.3 |
| 비교예1 | 201 | 1.5 | - | - | - |
| 비교예2 | 25.3 | 99 | 64.3 | 21.1 | -77.9 |
Claims (17)
- 제1항에 있어서, 상기 화학식 1에서 R1 및 R2는 각각 독립적으로 C2 ~ C6의 직쇄형 알킬렌기 또는 C2 ~ C6의 분쇄형 알킬렌기인 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 아민수용액은 아민수용액 전체 중량에 대하여 친수성 고분자를 0.01 ~ 0.2 중량%포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제3항에 있어서, 상기 친수성 고분자는 폴리비닐비롤리돈, 폴리에틸렌글리콜, 폴리비닐 알코올로 이루어진 군으로부터 선택되는 1종 이상을 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 아민수용액은 아민수용액 전체 중량에 대하여 상기 화학식 2로 표시되는 화합물을 0.2 ~ 1.5 중량% 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 다공성지지체는 부직포의 표면에 폴리설폰, 폴리에테르설폰, 폴리이미드, 폴리프로필렌 및 폴리비닐리덴플로라이드 중에서 선택된 1종 이상이 10 ~ 200 ㎛ 두께로 캐스팅된 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 아민수용액은 아민수용액 전체 중량에 대하여 화학식 1로 표시되는 화합물을 0.1 ~ 1 중량% 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 산할로겐 화합물은 이소프탈로일클로라이드, 트리메조일클로라이드 및 테레프탈로일클로라이드 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 유기용액은 유기용액 전체 중량에 대하여 산할로겐 화합물을 0.005 ~ 2 중량% 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제1항에 있어서, 상기 건조는 10℃ ~ 100℃에서 0.5 ~ 20분 동안 수행하는 것을 특징으로 하는 내산성이 향상된 나노분리막의 제조방법.
- 제11항에 있어서, 상기 화학식 1에서 R1 및 R2는 각각 독립적으로 C2 ~ C6의 직쇄형 알킬렌기 또는 C2 ~ C6의 분쇄형 알킬렌기인 것을 특징으로 하는 내산성이 향상된 나노분리막.
- 제11항에 있어서, 상기 다공성지지체는 상기 부직포의 표면에 폴리설폰, 폴리에테르설폰, 폴리이미드, 폴리프로필렌 및 폴리비닐리덴플로라이드 중에서 선택된 1종 이상이 10 ~ 200 ㎛ 두께로 캐스팅된 것을 특징으로 하는 내산성이 향상된 나노분리막.
- 제11항에 있어서, 상기 부직포는 평균두께가 30 ~ 300 ㎛이고,
상기 폴리아미드층은 평균 두께는 0.05 ~ 1 ㎛인 것을 특징으로 하는 내산성이 향상된 나노분리막. - 제11항에 있어서, 상기 아민수용액은 친수성 고분자를 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막.
- 제15항에 있어서, 상기 친수성 고분자는 폴리비닐비롤리돈, 폴리에틸렌글리콜, 폴리비닐 알코올로 이루어진 군으로부터 선택되는 1종 이상을 포함하는 것을 특징으로 하는 내산성이 향상된 나노분리막.
- 제11항에 있어서, 상기 내산성 나노분리막은 15 중량%의 황산 수용액에 7 일간 침지시 25℃ 및 75 psi에서 유량이 25 gfd 이상이고, 염제거율이 92 % 이상인 것을 특징으로 하는 내산성이 향상된 나노분리막.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108636142A (zh) * | 2018-05-07 | 2018-10-12 | 万华化学集团股份有限公司 | 一种复合纳滤膜的制备方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7138058B2 (en) | 2000-05-23 | 2006-11-21 | Ge Osmonics, Inc. | Acid stable membranes for nanofiltration |
| WO2013047398A1 (ja) * | 2011-09-29 | 2013-04-04 | 東レ株式会社 | 複合半透膜 |
| KR20150016475A (ko) * | 2013-08-01 | 2015-02-12 | 주식회사 엘지화학 | 내구성이 우수한 폴리아미드계 수처리 분리막 및 그 제조방법 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7138058B2 (en) | 2000-05-23 | 2006-11-21 | Ge Osmonics, Inc. | Acid stable membranes for nanofiltration |
| WO2013047398A1 (ja) * | 2011-09-29 | 2013-04-04 | 東レ株式会社 | 複合半透膜 |
| KR20150016475A (ko) * | 2013-08-01 | 2015-02-12 | 주식회사 엘지화학 | 내구성이 우수한 폴리아미드계 수처리 분리막 및 그 제조방법 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108636142A (zh) * | 2018-05-07 | 2018-10-12 | 万华化学集团股份有限公司 | 一种复合纳滤膜的制备方法 |
| CN108636142B (zh) * | 2018-05-07 | 2020-04-10 | 万华化学集团股份有限公司 | 一种复合纳滤膜的制备方法 |
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