Relationship between local residence time and distributive mixing in sections of a twin-screw extruder.(Statistical Data Included): An article from: Polymer Engineering and Science
Book Details
Author(s)Gifford Shearer, Costas Tzoganakis
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB0008IMB9M
ISBN-13978B0008IMB91
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on December 1, 2001. The length of the article is 5391 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: Local residence time and distributive mixing were measured in conveying sections and kneading blocks of a twin screw-extruder. The residence time measurements were completed using carbon black as the tracer and an infrared temperature probe to detect the temperature decrease caused by the changing surface emissivity. The validity of this experimental technique was extensively evaluated. A mixing limited interfacial reaction between polymer tracers was used to directly measure the distributive mixing in the twin-screw extruder. Possible relationships between mixing and residence time in the sections of the twin-screw extruder were investigated by combining these two measurements. Distributive mixing in conveying sections was related to the local average residence time and the fill. In contrast, distributive mixing in kneading blocks was related to the local average number of screw revolutions experienced by the polymer. Forward stagger kneading discs achieved the greatest amount of distributive mixing, which w as attributed to a combination of local stagnant flow regions and more frequent interfacial reorientation.
Citation Details
Title: Relationship between local residence time and distributive mixing in sections of a twin-screw extruder.(Statistical Data Included)
Author: Gifford Shearer
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 2001
Publisher: Society of Plastics Engineers, Inc.
Volume: 41 Issue: 12 Page: 2206(10)
Article Type: Statistical Data Included
Distributed by Thomson Gale
From the author: Local residence time and distributive mixing were measured in conveying sections and kneading blocks of a twin screw-extruder. The residence time measurements were completed using carbon black as the tracer and an infrared temperature probe to detect the temperature decrease caused by the changing surface emissivity. The validity of this experimental technique was extensively evaluated. A mixing limited interfacial reaction between polymer tracers was used to directly measure the distributive mixing in the twin-screw extruder. Possible relationships between mixing and residence time in the sections of the twin-screw extruder were investigated by combining these two measurements. Distributive mixing in conveying sections was related to the local average residence time and the fill. In contrast, distributive mixing in kneading blocks was related to the local average number of screw revolutions experienced by the polymer. Forward stagger kneading discs achieved the greatest amount of distributive mixing, which w as attributed to a combination of local stagnant flow regions and more frequent interfacial reorientation.
Citation Details
Title: Relationship between local residence time and distributive mixing in sections of a twin-screw extruder.(Statistical Data Included)
Author: Gifford Shearer
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 2001
Publisher: Society of Plastics Engineers, Inc.
Volume: 41 Issue: 12 Page: 2206(10)
Article Type: Statistical Data Included
Distributed by Thomson Gale
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