PA6／POE／EAA共混体系的相态与性能的研究

采用乙烯－1－辛烯共聚物弹性体（POE）为增韧剂、乙烯－甲基丙烯酸共聚物（EAA）作为增溶剂制备了以尼龙6（PA6）为基体的PA6／POE／EAA共混合金。详细研究了弹性体用量与共混体系的亚微观相态、力学性能和流变性能的关系。结果表明随着弹性体含量的增加，共混体系的分散相粒子尺寸大小没有明显变化，共混体系的冲击强度增加，拉伸强度和弯曲弹性模量降低。弹性体的增加使体系的熔体粘度降低，改善了体系的加工性能，但当POE增加到20％时，随着POE的增加，粘度不再下降。

Study on Morphology and Properties of PA6/POE/EAA Blends

Effects of elastomer ethylene-1-octene copolymer (POE) content on micro-morphology, mechanical and rheological properties of polyamide 6(PA6)/ethylene-1-octene copolymer (POE) blends compatibilized by EAA were studied. SEM photographs of PA6/POE/EAA blends showed that increasing POE content produced coarser breakage surface; the Izod impact strength was enhanced, and both tensile strength and bend modulus declined with the increase of POE. Rheological test demonstrated that more POE led to a lower viscosity and therefore improved processing performance. However, when POE content rose to 20%, viscosity of the alloys didn't decline at the same non-Newtonian shear rate any more.