Abstract
Two commercial compatibilizers of ethylene glycidyl methacrylate (EGMA) and styrene-b-ethylene/butyleneb-styrene grafted with maleic anhydride (SEBS-g-MA) were added to poly(phenylene sulfide) (PPS)/poly(ethylene terephthalate) (PET) (80/20, weight ratio) and PPS/polyamide 66 (PA66) (80/20, weight ratio) mixture, respectively. This was done by using a twin screw extruder via a melt blending method and the blends of the three components were melt-pressed and quenched to the films of 200 <TEX>${\mu}m$</TEX>. Changes in thermal, mechanical, chemical and morphological properties of the blend films were analyzed by using DSC, DMA, WAXS, SEM and UTM. DSC results showed that EGMA in PPS(80)/PET(20)/EGMA blends lowered <TEX>$T_g$</TEX> of PPS. They hindered the crystallization of both PPS and PET. Addition of EGMA imparted partial miscibility to the immiscible PPS(80)/PET(20) blends but the total miscibility and compatibility were not enhanced. Mechanical and chemical properties of PPS80/PET20/EGMA blend films deteriorated more with an increase in EGMA content. SEBS-g-MA did not work as a compatibilizer at all for PPS(80)/PA66(20) blends rather it enduced phase separation of the blends.
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