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本工作旨在通过共混改性实现聚烯烃塑料高性能化。介绍了高密度聚乙烯（ＨＤＰＥ）／聚碳酸酯（ＰＣ）共混体系中组成对拉伸性能（拉伸强度、断裂伸长率）及形态的影响。结果表明，随ＰＣ含量增加，共混物的拉伸强度增加，断裂伸长率降低，而加入１０ｐｈｒ的增容剂烯基双酚Ａ醚接枝ＬＤＰＥ的体系，在相同ＰＣ含量时，其拉伸强度和断裂伸长率均高于未加增容剂的体系；ＰＣ含量低时，体系中ＰＣ基本上呈圆球状，ＰＣ含量较高时，部分ＰＣ粒子变形成椭球状、长条状、甚至纤维状；共混物受拉后，较多ＰＣ粒子向纤维状转变，就是因为这一形态的变化，承受了拉应力，对拉伸强度产生了贡献，由此给ＰＣ对体系拉伸性能影响进行了理论解释。
The purpose of this work is to improve the performance of polyolefin plastics by blending and modifying. The effects of composition on tensile properties (tensile strength, elongation at break) and morphology of high density polyethylene (HDPE) / polycarbonate (PC) blends were introduced. The results showed that with the increase of PC content, the tensile strength of the blends increased and the elongation at break decreased. However, adding 10 phr compatibilizer of alkenyl bisphenol A ether grafted LDPE system, at the same PC content, Elongation and elongation at break were higher than those without compatibilizer. When the content of PC was low, the PC in the system was basically spherical. When the content of PC was high, some PC particles were transformed into ellipsoidal, elongated, Even fibrous; After the blend is pulled, more PC particles to fibrous change, it is because of this morphological changes, bear the tensile stress, contributed to the tensile strength, which gives the PC tensile properties of the system The impact of a theoretical explanation.