Rheological effects of polyethylenes in film blowing.: An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on July 1, 2003. The length of the article is 5988 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

From the author: The aim of this work is to correlate the rheological properties and processability of various polyethylenes during the film-blowing process. The effect of rheology on the kinematics and dynamics of film blowing for five different polyethylene resins has been extensively studied using a fully instrumented laboratory unit. The complex viscosity, shear viscosity, uniaxial elongational viscosity, and non-uniform biaxial elongational viscosity, as well as the strain rates and stresses during film blowing, have been determined and correlated to the bubble stability. G' versus G" plots were found to be virtually independent of temperature for all polymers investigated. The more elastic polymers (larger G' values) were found to be more stable in film blowing. Also, the more stable polymer melts were found to be those possessing larger elongational properties.

Citation Details
Title: Rheological effects of polyethylenes in film blowing.
Author: Yunli Fang
Publication:Polymer Engineering and Science (Refereed)
Date: July 1, 2003
Publisher: Society of Plastics Engineers, Inc.
Volume: 43 Issue: 7 Page: 1391(16)

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