论文部分内容阅读
针对具有网状结构的 ＰＰＯ／ＳＥＢＳ－ｇ－ＭＡＨ共混合金冲击断面的形貌和微观形变过程，提出了“瞬间原位大取向”增韧模型该模型认为，超韧 ＰＰＯ／ＳＥＢＳ－ｇ－ＭＡＨ的冲击断裂首先是弹性体周围产生微穴，微穴诱发基体产生剪切带，基体在剪切屈服过程中被网状的弹性体携带共同发生大的取向行为，形成取向分子束，从而吸收大量能量，达到超韧水平．
Aiming at the morphological and microscopic deformation process of the PPO / SEBS-g-MAH alloyed alloy with reticular structure, the “instant in-situ large orientation” toughening model is proposed. The model indicates that the super tough PPO / SEBS- The impact fracture of MAH firstly produces micro-cavities around the elastomer, while the micro-cavitation induces shear bands in the matrix, and the substrate undergoes large orientation behavior together with the reticulated elastomer during the shear yielding process to form oriented molecular beam to absorb A lot of energy to achieve super tough level.