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Evolution of Chemistry, Morphology and Rheology of Various Polymer Systems along a Twin‐Screw Extruder
Author(s) -
Covas José A.,
Carneiro Olga S.,
Maia João M.,
Filipe Susana A.,
Machado Ana V.
Publication year - 2002
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450800608
Subject(s) - plastics extrusion , compounding , rheology , extrusion , materials science , polymer , work (physics) , mechanical engineering , composite material , reactive extrusion , morphology (biology) , polymer science , engineering , geology , paleontology
Intermeshing twin‐screw extruders have been recently identified as useful in special application niches such as the extrusion of PVC dry blends (counter‐rotating machines) and compounding operations (co‐rotating machines). Thus, it is of interest to study the mechanical and/or chemical effects that occur along the screw axis of the extruders, since they will dictate the characteristics and performance of the final material. This work aims at illustrating the usefulness of a simple experimental tool recently developed for the study of the physical, chemical and morphological evolution along the extruder of polymer based systems, data being presented and discussed for a number of composites and blends.