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NTIS 바로가기멤브레인 = Membrane Journal, v.28 no.6, 2018년, pp.395 - 405
후건 (쯔보 직업대학교 화학공학과) , 윤재한 (계명대학교 화학공학과) , 전성일 (주식회사 멤브레어) , 정건용 (서울과학기술대학교 화공생명공학과) , 변홍식 (계명대학교 화학공학과)
Poly(ethylene-co-vinylalcohol) EVOH hollow fiber membranes were successfully fabricated via a thermally induced phase separation (TIPS) method. It was observed that all membranes fabricated under different spinning conditions had interconnected and bicontinuous structures through liquid-liquid phase...
핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
본 연구에서 poly EVOH 중공사막은 어떠한 공법을 이용하여 제조 되었는가? | 본 연구에서 Poly(ethylene-co-vinylalcohol) EVOH 중공사막은 열유도상분리(TIPS)법을 이용하여 제조하였다. 다양한 조건에서 제조된 모든 분리막에서 액-액 상분리에 의해 기공이 서로 연결되어 있는 스폰지 구조가 관찰되었다. | |
EVOH는 어떠한 산업에 적용될 수 있는가? | EVOH는 구조를 이루고 있는 에틸렌과 비닐알콜의 조성에 따라 열적 안정성, 화학적 안정성, 기체 차단성, 친수성 혹은 소수성에 대한 물성이 변한다. 따라서 기체 차단성을 필요로 하는 식품 가공 필름이나 생체 친화성을 필요로 하는 바이오, 의학 분야와 같이 매우 광범위한 산업에 적용되고 있다[19].Kenawy 그룹에서는 전기방사를 이용하여 EVOH 섬유를 만들어 생체조직 공학에 적용하였다[19]. | |
EVOH란 무엇인가? | EVOH는 Fig. 1에서 보는 바와 같이 에틸렌과 비닐 알콜로 이루어진 반결정 랜덤 공중합체의 고분자이다.EVOH는 에틸렌과 초산비닐의 공중합체인 EVA (poly (ethylene-co-vinyl acetate))의 초산비닐 가수분해를 통해 얻을 수 있다[18]. |
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