✦ LIBER ✦

Flow of molten polymers through porous media

✍ Scribed by Dale R. Gregory; Richard G. Griskey

Publisher: American Institute of Chemical Engineers
Year: 1967
Tongue: English
Weight: 353 KB
Volume: 13
Category: Article
ISSN: 0001-1541
DOI: 10.1002/aic.690130123

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✦ Synopsis

The flow of molten polymer through porous media has been investigoted o t constant tempemtures and flow rates. Temperatures of 375", 400", and 425"F., flow rates from 12 to 60 g./min. and particle sizes from 0.054 in. to 6 mm. in diameter were studied. A modified Darcy's law was developed using the Metmer-Reed modification of the Mooney-Rabinowitsch relation. This form was then used to develop a modified friction factor plot which correlated the data with an overage error of 5.02%. Calculated superficial velocities from the Darcy'r law equation checked experimental values generally to within 10%. A technique for estimating shear rates when curved rheological flow curves occurred was also developed.

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