| 학회 | 한국화학공학회 |
| 학술대회 | 2003년 가을 (10/24 ~ 10/25, 한양대학교) |
| 권호 | 9권 2호, p.2637 |
| 발표분야 | 이동현상 |
| 제목 | Extensional rheometry of polyethylenes |
| 초록 | Extensional rheoemtry is a matter of consequence for extensional deformation process such as fiber spinning, film casting and film blowing processes. However it is difficult to measure extensional viscosity because of its nature of free surface. The RME, a commercial Meissner type extensional rheometer, give solutions for some problems of experiments. By the RME, the extensional viscosities have been measured for polyethylenes. Almost polyethylene show shear thinning behavior in the shear rheometry. In the extensional rheometry, however, low density polyethylene (LDPE) shows extension thickening behavior, on the other hand, high density polyethylene shows extension thinning behavior. These different properties with extensional flow will be great apply to the various extensional deformation processes. Acknowledgement This study was supported by research grants from the KOSEF through the Applied Rheology Center (ARC). |
| 저자 | 김유준, 이주성, 정현욱, 현재천 |
| 소속 | 고려대 |
| 키워드 | extensional rheometry; RME; polyethylenes |
| 원문파일 | 초록 보기 |
