成核剂在改善聚丙烯冲击强度中的作用

Function of Nucleating Agent in Modifying Impact Strength of Polypropylene

探讨一种既经济又能规模化生产的提高聚丙烯 (PP)冲击强度的新方法 ;简述生产控制过程 ;成核剂在聚丙烯冲击改性中的机理和效果 ;在保持基础树脂的熔体流动速率、屈服拉伸强度不变 (降幅不大 )的情况下 ,提高PP的冲击强度。

A new technology for improving the impact strength of polypropylene(PP) is discussed.This technology is economic and can be used in large scale production.Production control process and mechanism and effects of nucleating agent in modifying the impact strength of PP are introduced.The impact strength of PP is improved without reduction of melt flow rate and tension strength.