| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.1385 |
| 발표분야 |
분리기술 |
| 제목 |
Recrystallization of polystyrene using the carbon dioxide as an anti solvent |
| 초록 |
Polystyrene is able to be used as a source for toner when its particle size is about 5μm. The object of this study is to find out the condition which produced particles having about 5μm. DCM (dichloromethane) and toluene were used as a solvent for the polystyrene while CO2 was used as an anti solvent. To find it initial temperatures were ranged from 32 oC to 50 oC with 5oC increment and pressures were ranged from 100bar to 250bar with 50bar increment. Polystyrene initial concentrations in DCM and toluene were varied from 0.3wt% to 2wt%. Solution injection rates were varied from 0.2ml/min to 2ml/min to investigate the effect on particles by relative ratio of L-PLA solution and CO2. The polystyrene row materials were tabular habit and its size were varied from 3.0mm to 1.5cm. After SAS process, the particles were analyzed by a SEM (scanning electron microscope) and PSA (laser diffraction particle size analyzer). |
| 저자 |
김미영1, 이윤우2, 유기풍3, 임종성3
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| 소속 |
1한국과학기술(연), 2서울대, 3서강대 |
| 키워드 |
polystyrene; toner; DCM; toluene
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