SEM photographs show the dispersibility of MST in LDPE is enhanced with the decrease of starch granules size.Rheological analysis shows that MST/LDPE blend melts are pseudoplastic fluid.

• 流变学分析表明,MST/LDPE共混体系熔体为非牛顿假塑性流体,随着淀粉粒度的降低,熔体非牛顿指数减小,但粘度变化不显著。