摘要
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)作为增容剂制备了以尼龙 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 2 0 %时 ,随着POE的增加 ,粘度不再下降。
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.
出处
《中国塑料》
CAS
CSCD
北大核心
2002年第8期27-30,共4页
China Plastics
关键词
共混体系
相态
性能
尼龙6
POE
EAA
塑料
增韧
改性
ethylene-1-octene copolymer
ethylene-acrylic acid copolymer
polyamide 6
alloy
blend
