PPO-g-MAH与CNTs-x对PPO/PA6共混物的协同增强作用研究  

Study on Synergistic Enhancement of PPO-g-MAH and CNTs-x in PPO/PA6 Composites

作　　者：赵卫哲 孟庆国 郭卫红[2] 蔡青 郭正虹[3] ZHAO Weizhe;MENG Qingguo;GUO Weihong;CAI Qing;GUO Zhenghong(Shanghai PRET Composite Co.,Ltd.,Shanghai 201707,China;School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,Zhejiang Province,China)

机构地区：[1]上海普利特复合材料股份有限公司,上海201707 [2]华东理工大学材料科学与工程学院,上海200237 [3]浙江大学宁波理工学院,浙江宁波315100

出　　处：《上海塑料》2021年第1期46-54,共9页Shanghai Plastics

摘　　要：研究了聚苯醚/尼龙6/聚苯醚接枝马来酸酐/功能化碳纳米管(PPO/PA6/PPO-g-MAH/CNTs-x)复合材料的形貌结构、力学性能、动态力学行为、流变性能。引入增容剂PPO-g-MAH可改善PPO与PA6之间的界面性能,明显提高了PPO/PA6共混物的力学性能。通过拉伸、冲击实验,动态力学和流变学实验分析发现,在PPO/PA6/PPO-g-MAH共混物中添加氨基化碳纳米管(CNTs-NH_(2)),其形貌和力学性能均优于碳纳米管(CNTs)和羧基化碳纳米管(CNTs-COOH)。这是由于CNTs-NH_(2)与PA6/PPO-g-MAH的相互作用较强,并随着CNTs-NH_(2)添加量的增加,复合材料的拉伸性能、储能模量和复数黏度提高,但冲击强度降低。Morphology,mechanical properties,dynamic mechanical and rheological behaviors of PPO/PA6/PPO-g-MAH/CNTs-x composites were researched.PPO-g-MAH improved the interfacial bonding between PPO and PA6,and the mechanical properties of PPO/PA6 blend were enhanced obviously.From the experimental results,it was concluded that the addition of CNTs-NH_(2) in PPO/PA6/PPO-g-MAH blends achieved better morphology and mechanical properties than CNTs and CNTs-COOH because of the stronger interaction of CNTs-NH_(2) with PA6 and PPO-g-MAH.With the increase of CNTs-NH_(2) content,the tensile properties,storage modulus and complex viscocity were enhanced,however the impact strength was reduced.

关 键 词：聚苯醚/尼龙 复合材料 碳纳米管 形貌结构 力学性能 

分 类 号：TQ326.53[化学工程—合成树脂塑料工业]