Abstract: Abstract：The effect of Ionomer surlyn on the morphology and crystalline properties was studied by FTIR and DSC.Rheological properties,mechanical properties and heat performance was studied by low rate rheology testing , mechanical peoperties testing and thermal deformation temperature testing .The results show that the compatibility is improved by adding ionomer surlyn which increase the interface bonding strength and molecular chain entanglement.the highest compatibilization efficiency was obtained when the content of surlyn was 10%.

Key words: poly(ethylene terephalate), polyamide-66, blends, compatibility