Abstract: PA6, ABS and their compatibilizer, styrene-co-maleic anhydride (SMA) was blended using a corotating twin-screw extruder with different blending procedure. The morphology of the blends was observed through TEM. The influence of blending procedure on the morphology, properties, and brittle-ductile transition was studied. The addition of SMA decreased the rubber particle size, and thus the matrix ligament thickness. with increasing content of SMA. As the content of SMA increased, the tensile strength of the blends increased, the brittle-ductile transition temperature of decreased firstly and then increased.

Key words: polyamide 6, acrylonitrile-butadiene-styrene copo1ymer, brittle-ductile transition, inter particle distance, interfacial adhesion