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The Effect of the Compatibilization Route of PA/PO Blends on the Physico‐chemical Phenomena Developing Along a Twin‐screw Extruder
Author(s) -
Vera Machado Ana,
Yquel Virginie,
Covas José Antonio,
Flat JeanJacques,
Ghamri Nessim,
Wollny Andreas
Publication year - 2006
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200690032
Subject(s) - plastics extrusion , polyamide , materials science , compatibilization , polyolefin , rheology , composite material , viscoelasticity , reactive extrusion , polymer blend , polymer , layer (electronics) , copolymer
The effect of the compatibilization method (ex‐situ, in‐situ, cross linking) on the chemical conversion, morphological and rheological evolution of polyamide/polyolefin blends along a twin screw extruder is investigated. For this purpose, samples were quickly collected from the extruder at specific barrel locations, quenched and subsequently characterized off‐line. While significant changes occur very quickly in the melting zone for the ex‐situ and in‐situ routes, changes of the cross linking system could be detected along all the extruder. Correlations between chemical conversion, particle size and linear viscoelastic response could be established.