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通过熔融共混法制备了聚丙烯(PP)/聚氧化乙烯(PEO)/有机蒙脱土(OMMT)复合材料,采用透射电子显微镜(TEM)、扫描电子显微镜(SEM)和力学性能测试表征了该复合材料的微观形态和力学性能。结果表明:OMMT选择性分布在PEO中及PP、PEO两相边界处,PP中只有少量OMMT存在;随着OMMT含量的增加,PEO分散相尺寸逐渐减小,且分布均匀;PP/PEO/OMMT复合材料的拉伸强度随OMMT含量的增加呈增大趋势,缺口冲击强度在OMMT含量为3%时出现极大值4.379kJ/m2。
The PP / PEO / OMMT composites were prepared by melt blending method. The composites were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and mechanical properties The composite microstructure and mechanical properties. The results showed that OMMT was selectively distributed on the boundary between PEO and PP and PEO, and only a small amount of OMMT existed in PP. With the increase of OMMT content, the size of dispersed phase of PEO gradually decreased and the distribution was uniform. PP / PEO / OMMT The tensile strength of composites increases with the increase of OMMT content, and the notched impact strength reaches 4.379 kJ / m2 when OMMT content is 3%.