fibrils

• Soft fibril formation of eoc in pp did not improve the tensile and flexural properties , and restrained the improvement of the impact strength . the results showed that fine , uniform dispersion of elastomer with low degree of orientation in pp was better for the improvement of toughness , and optimal toughness was obtained in blends with a certain size of elastomer region
  由弹性体相形成的软纤不但没有增强作用，还会抑制韧性的提高，揭示了弹性体相分散均匀细化及取向程度小有利于材料冲击韧性的提高，一定大小的弹性体区域将会产生最大的韧性，此区域过大或过小都会降低韧性。