PVA/PSSA-MA막을 이용한 수증기 투과 성능에 관한 연구

The crosslinked poly(vinyl alcohol) (PVA) mwmbranes with poly(styrene sulfonic acid-co-maleic acid) (PSSA-MA) were used to measure the water vapor and air permeabilities at 25 and 35℃. In addition, the contact angles of crosslinked PVA membranes were observed and increased with PSSA-MA contents. The water vapor permeability of 15300 Baller (1 Baller=10-10cm3(STP)·cm/cm2·s·cmHg) was shown the maximum value at 35℃ when PSSA-MA=7 wt% membrane was used. The gas permeability of 146 Barrer was indicated the maximum at PSSA-MA=7 wt% at 35℃ and P(H2O)/P(Air) was the highest value 109.2 at 25℃.