稀土CeO_2对PA6复合材料性能的影响  

Effects of Rare Earth CeO_2 on Properties of PA6 Composites

作　　者：周仕龙[1] 刘定谦 周健[1] 杨菁菁[1] 朱云峰[1] 张洪文[2] 

机构地区：[1]江苏理工学院材料工程学院,江苏常州213001 [2]常州大学材料科学与工程学院,江苏常州213164

出　　处：《塑料科技》2016年第4期56-60,共5页Plastics Science and Technology

基　　金：江苏省产学研联合创新项目(BY2014038-02);江苏省属高校自然科学研究项目(14KJB430013)

摘　　要：以稀土氧化铈(CeO_2)为改性剂、聚酰胺6(PA6)为基体,通过熔融挤出制备了PA6/CeO_2复合材料,并且对不同CeO_2用量的PA6/CeO_2复合材料的力学性能、热性能、流变性能、抗紫外老化性能和微观结构进行了测试和分析。结果表明:随着CeO_2用量的增加,PA6/CeO_2复合材料的力学性能、热稳定性能、抗紫外老化性能和结晶温度均有所提高;CeO_2的加入未改变PA6/CeO_2复合体系的假塑性特征,改性后体系的剪切黏度有所增大,并且在同一剪切速率下,复合材料的剪切黏度随着温度升高而减小。CeO_2粒子在复合材料中分散均匀,与PA6相容性良好,并且有一定的增强增韧作用。Polyamide 6/cerium oxide（PA6/CeO2） composites were prepared by means of melting extrusion with PA6 as the matrix and CeO2 as the modifier. The effects of CeO2 content on mechanics properties, thermal performance, rheological property, UV aging resistances and microstructure of PA6/CeO2 composites were studied. The results show that, with the increase of CeO2 content, the mechanics properties, thermal stability, crystallization temperature and UV aging resistances of PA6/CeO2 composites improve. After adding CeO2, the composites are still pseudoplastic and the shear viscosity increases. In addition, under the same shear rate, shear viscosity decreases as the temperature increases. The CeO2 has good compatibility and uniformly scattered in PA6, and has certain toughening and strengthening function to PA6.

关 键 词：聚酰胺6 氧化铈 力学性能 流变性能 微观结构 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]