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Distributive mixing in the nonintermeshing twin-screw extruder with a newtonian fluid

✍ Scribed by David Bigio; William Baim

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 499 KB
Volume: 11
Category: Article
ISSN: 0730-6679
DOI: 10.1002/adv.1991.060110103

No coin nor oath required. For personal study only.

✦ Synopsis

Visual studies have been peflormed on the partidly filled, nonintenneshing twin-screw extruder (NITSE) to determine its distributive mixing abilities. Four parameters were studied: percent screw stagger, percent channel fill, screw speed, and fluid viscosity. It was found that screw speed and viscosity had no statisticaUy significant effect on mixing, while percent channel fill and percent screw stagger were factors affecting mixing that were intimately related by the type of screw-to-screw fluid transfer. The two types of transfer were fluid-to-fluid, which occurred when the percent fill was greater than the percent stagger, and deposition, which occurred when the percentfill was less than the percent stagger.

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