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TitleMelting of polymer blends in single-screw extrusion : an experimental study
Author(s)Cunha, S. M.
Gaspar-Cunha, A.
Covas, J. A.
Melting mechanism
Polymer blends
Single-screw extrusion
Issue date2009
JournalInternational Journal of Material Forming
Abstract(s)Melting is a major step in plasticating single screw extrusion, but most of the existing phenomenological know how was gathered by performing Maddock-type experiments with homopolymers. Given the current widespread industrial use of polymer blends, it is worth determining whether the same mechanisms and mathematical models apply, or whether different sequences develop. This work reports the results of Maddock-type experiments using a PA6/PP blend, both in its immiscible and compatibilized varieties. A melting mechanism combining the features of the classical Tadmor mechanism and of the dispersed melting mechanism, also previously reported in the literature, was observed.
Publisher version
AccessOpen access
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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