PVA/PSSA_MA/TEOS 막을 이용한 물/에탄올 계의 투과증발 분리

국문 초록 (Abstract)

본 연구는 poly(vinyl alcohol) (PVA)와 가교제 poly(styrene sulfonic acid-co-maleic acid) (PSSA_MA)을 이용하여 제조된 막에 tetraethylorthosilicate (TEOS)를 도입하여 물-에탄올 계에 대한 투과증발 실험을 다양한 가교온도별(120~140℃), 조업온도별(25~70℃)로 수행하였다. TEOS의 함량은 PVA 대비 3, 5, 7 wt%를 사용하였으며, 원액의 조성은 무게비로 물 10, 20, 30 및 50%에 대하여 조사하였다. 물 에탄올 = 10 : 90 조성, 조업온도 50℃에서 선택도 1730과 투과도 16.3g/m2·hr를 PVA/7 wt% PSSA_MA/5 wt% TEOS 막이 보여 주었다.

다국어 초록 (Multilingual Abstract)

Pervaporation separation for water-ethanol mixtures has been carried out using crosslinked poly(vinyl alcohol) (PVA) membranes with poly(styrene sulfonic acid-co-maleic acid) (PSSA_MA) and at which tetraethylorthosilicate (TEOS) was introduced. The concentration of PSSA_MA was fixed 7 wt% over PVA and the TEOS contents, 3, 5, and 7 wt%, were varied against PVA. The composition of the feed mixtures were 10, 20, 30 and 50 wt% of water in it. PVA/PSSA_MA/5 wt% TEOS membrane showed the separation factor, 1730 and the permeability, 16.3g/m2·hr for water : ethanol = 10 : 90 at 50℃.

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