PHYSICAL-PROPERTIES OF ABS/SMA/NYLON-6 TERNARY BLENDS - EFFECT OF BLENDING SEQUENCE

The effect of a blending sequence in acrylonitrile-butadiene-styrene terpolymer(ABS)/nylon-6 blend modified by poly(styrene-co-maleic anhydride) (SMA) on the dynamic mechanical and rheological properties, and morphology was studied. When nylon-6 was blended with the preblended ABS/SMA(90/10) blend, the SMA-g-nylon-6 formed during the blending process seemed to lie at the interfacial region and act as an effective compatibilizer. However, when ABS was blended with the preblended SMA/nylon-6(10/90) blend, the SMA-g-nylon-6 formed during the preblending process seemed to lie preferentially at the nylon-6 domain and improve the thermal resistance and modulus of the nylon-6 rich domain.