We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A different extensional viscosity prediction based on entry pressure drop.
- Authors
Yang, Jia; Dai, Yahui; Li, Jigong
- Abstract
ABSTRACT Extensional viscosity, an important processing parameter, can control the processing properties of polymeric products in industrial processes, such as fiber spinning, blow molding, and film casting. In this article, based on the equivalent thought, the contraction flow in the circular channel was studied without using the power laws, and the new equations of the extensional strain rate and the extensional viscosity based on entry pressure drop were proposed. The extensional viscosity of two high-density polyethylene melts was predicted using the proposed equations, the Cogswell's equations, the Binding's equations, and the Gibson's equations. Moreover, this prediction was compared with the experimental data of the extensional viscosity. It was found that the predicted extensional viscosity of the proposed equations was close to the experimental data. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40563.
- Subjects
VISCOSITY; PRESSURE drop (Fluid dynamics); POLYMERS; BLOW molding; STRAIN rate
- Publication
Journal of Applied Polymer Science, 2014, Vol 131, Issue 15, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.40563