| Melt spinning simulation from relaxation time spectrum.(Correlations Between Relaxation Time Spectrum and Melt Spinning Behavior of Polypropylene, part ... from: Polymer Engineering and Science |  | Authors: R. Fulchiron, V. Verney, A. Michel, J.C. Roustant
Publisher: Society of Plastics Engineers, Inc.
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Format: HTML
Language: English (Published)
Media: Digital
Pages: 18
ASIN: B00093KTOK
Publication Date: March 1, 1995
Availability: Available for download now
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This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on March 1, 1995. The length of the article is 5261 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: Using an integral nonlinear constitutive equation including the Log-Normal relaxation spectrum, the fiber-spinning behavior of commercial polypropylenes is studied. The relation spectrum is strongly related to the molecular weight distribution. Moreover, by means of a finite element analysis, simulated stress and velocity profiles are obtained either in isothermal or nonisothermal cases. In the isothermal case, broadening the relaxation spectrum leads to more pronounced curvature of the velocity profile. In the nonisothermal case, the critical draw ratio is sensitive to the mean relaxation time which depends on both average molecular weight and distribution breadth. It is shown that increasing the average relaxation time leads to a less rapid growth of the velocity. Furthermore, this effect is less pronounced when the relaxation spectrum is wider.
Citation Details
Title: Melt spinning simulation from relaxation time spectrum.(Correlations Between Relaxation Time Spectrum and Melt Spinning Behavior of Polypropylene, part 2)
Author: R. Fulchiron
Publication: Polymer Engineering and Science (Refereed)
Date: March 1, 1995
Publisher: Society of Plastics Engineers, Inc.
Volume: v35 Issue: n6 Page: p518(10)
Distributed by Thomson Gale
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