文献类型：期刊文献

中文题名：EMAA-Na离聚物对PE-HD/Al_2O_3复合材料微观结构和流变特性的影响

英文题名：Influence of EMAA-Na Ionomer on Morphology and Rheological Behavior of PE-HD/Al_2O_3 Composites

作者：陈欣[1];沙金[1];陈涛[1];谢林生[1];马玉录[1]

机构：[1]华东理工大学绿色高效过程装备与节能教育部工程研究中心,上海200237

年份：2018

卷号：32

期号：8

起止页码：19

中文期刊名：中国塑料

外文期刊名：China Plastics

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

语种：中文

中文关键词：氧化铝;高密度聚乙烯;钠离子离聚物;相容性;流变特性

外文关键词：aluminum oxide; high densily polyethylene; sodium ionomer; compatibility; rheological behavior

摘要：以钠离子离聚物(EMAA-Na)作为相容剂,采用熔融共混法制备了高密度聚乙烯(PE-HD)/氧化铝(Al_2O_3)复合材料。利用扫描电子显微镜观察了复合材料的断面结构,利用平板流变仪和毛细管流变仪研究了复合材料的稳态和动态流变性能。结果表明,EMAA-Na大大提升了PE-HD/Al_2O_3之间的界面相容性,消除PE-HD和Al_2O_3之间的间隙;复合材料的稳态剪切黏度和拉伸黏度随着EMAA-Na含量的增加而升高,且呈现出很强的非牛顿性和拉伸硬化特性;EMAA-Na促进了各组分之间的相互作用,提高了复合材料的弹性。
High density polyethylene （PE-HD）/aluminum oxide （Al2O3） composites were prepared by melt blending with sodium ionomer （EMAA Na） as a compatibilizer. The cross section structure of the composites was observed by scanning electron microscopy, and steady and dynamic rheological properties were investigated by a plate rheometer and capillary rheometer. The results indicated that the interfacial adhesion between PE HD and Al2O3 was improved with the addition of EMAA Na, leading to disappearance of the gap between the matrix and fillers. The steadwshear viscosity and elongational viscosity were improved with increasing the content of EMAA Na, and PE- HD/Al2O3/EMAA Na composites showed a shear thinning and strain hardening behavior. Dynamic rheology measurement indicated that the incorporation of EMAA Na improved the interaction between different components, thus enhancing the elasticity of composite.