| 학회 | 한국화학공학회 |
| 학술대회 | 2003년 가을 (10/24 ~ 10/25, 한양대학교) |
| 권호 | 9권 2호, p.1657 |
| 발표분야 | 공업화학 |
| 제목 | Study on Applications of Supercritical Fluid on Preparations of Microporous Polymeric Membranes |
| 초록 | In this study, microporous polymeric membranes were prepared by the phase separation process using the supercritical CO2 as a anti-solvent for the polymer solution. The polymeric membranes were prepared by a Robe or melt-extrude method. They contained a little amount of PEG or PVA which was extracted by distillated water and supercritical fluid. In a Robe method, the casting solution on the PEN film was located in a chamber and the supercritical CO2 was introduced to induce the phase separation. The dry membranes were obtained after the CO2 pressure was diminished by extraction. In a melt-extrude method, PVA and polymers were blended by a melt-extrude method and formed a thin film. The supercritical CO2 extracted PVA and the polymeric thin film with pores were obtained. The prepared membranes have a sponge structure and identical pore sizes(3~5㎛). The pressure of CO2(100~150 bar), polymer concentration, and temperature(30~60℃) had an effect on the average pore size and membrane porosity. |
| 저자 | 이상준, 김문선, 정재관 |
| 소속 | 성균관대 |
| 키워드 | Supercritical Fluid: Membrane: Polymer |
| 원문파일 | 초록 보기 |
