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Migration of polymer blend components during melt compounding

✍ Scribed by M. E. J. Dekkers; S. Y. Hobbs; I. Bruker; V. H. Watkins

Publisher
Society for Plastic Engineers
Year
1990
Tongue
English
Weight
558 KB
Volume
30
Category
Article
ISSN
0032-3888

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✦ Synopsis

Abstract

In this paper it is shown that a core‐shell impact modifier which is predispersed in one phase of a complex blend may migrate to another phase during melt compounding. The migration process appears to be driven by differences in the spreading behavior of the individual blend components. The details of the migration are analyzed by electron microscopy studies of partially compounded samples which were quenched, extracted, and separated from the extruder screw.

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