초록 |
In polymer blend film, the improvement in barrier properties can be accomplished through the formation of a laminar morphology of the dispersed phase. EVOH or nylon has been chosen as the barrier material to obtain blend system with developed laminar morphology and barrier properties. However, most studies on the barrier blends have been performed using single barrier polymers as a dispersed phase. In this work, ternary blend films of PP/(Nylon-EVOH) were prepared, in which barrier polymers of PA and EVOH were used as the dispersed phase, and PP was used as the continuous phase. The effects of blending sequence(three method in this study) on the morphology, oxygen barrier properties, and tensile properties of the blends were investigated. |