the melting flow behavior of PP/Sm 2O 3was of non Newtonian fluid as PP,the non Newtonian exponential of PP/Sm 2O 3was higher than that of PP generally,so it was more like Newtonian fluid;

• PP/Sm2 O3 和纯PP一样 ,同属于非牛顿假塑性流体行为 ,PP/Sm2 O3 的非牛顿指数普遍大于纯PP而更趋于牛顿性流体 ;