Rheology studies of foam flow during injection mold filling.: An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Thomson Gale on April 1, 2007. The length of the article is 4594 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: This work studies the flow behavior of a developing two-phase gas-polymer suspension during injection into the instrumented mold cavity of an injection molding machine. In the experiments, blowing agent type and concentration were varied along with processing conditions, to generate controlled cell structures in two different polymers, low density polyethylene and thermoplastic polyolefin. Experimental results indicate that the rheological properties of two phase gas-polymer suspensions were sensitive to shear rate, blowing agent concentration, melt temperature, and mold temperature. The viscosity of all gas-polymer suspensions revealed a reduction compared with neat polymer melt in the presence of gas bubbles, because of the reduced volume fraction of polymer matrix. A two-phase rheological model has been used for fitting with our experimental results for estimating the shear viscosity of two-phase flow in the mold cavity of the injection molding machine. POLYM. ENG. SCI., 47:522-529, 2007. [c] 2007 Society of Plastics Engineers

Citation Details
Title: Rheology studies of foam flow during injection mold filling.
Author: X. Qin
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: April 1, 2007
Publisher: Thomson Gale
Volume: 47 Issue: 4 Page: 522(8)

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