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Influence of a compatibilizing agent on the phase morphology of a polyethylene‐polyamide 6 blend in a modular intermeshing co‐rotating twin screw extruder
Author(s) -
Lim Soonho,
White James L.
Publication year - 1994
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760340308
Subject(s) - plastics extrusion , polyamide , materials science , phase (matter) , mixing (physics) , scanning electron microscope , morphology (biology) , polyethylene , composite material , compatibilization , polymer blend , polymer , viscosity , chemical engineering , chemistry , organic chemistry , engineering , physics , quantum mechanics , biology , copolymer , genetics
A study of the influence of a compatibilizing agent on phase morphology development in a 75/25 polyethylene/polyamide‐6 blend in a modular co‐rotating twin screw extruder is presented. The development of phase morphology along the axis of the modular screw was observed by cooling the extruder and removing the polymer from the screw channels. Changes in phase morphology due to the addition of a compatibilizer have been investigated using scanning electron microscopy. Sufficient quantities of compatibilizing agent produce significant increases in the rate of mixing and also reduce the scale of the phase morphology. Much larger quantities (5%) than actually required for interface coverage are needed for rapid mixing. This seems to be due to the high viscosity of the matrix.