PPO/PA6/PPO-g-GMA反应共混体系的形态及性能  

Reactive Compatibilization of Poly(Phenylene Oxide)/Polyamide 6 Blended with Poly(Phenylene Oxide) Grafted Glycidyl Methacrylate Copolymer

作　　者：郭正虹[1] 申瑜[1,2] 吴煜 程捷[1] 方征平[1,2] 

机构地区：[1]浙江大学宁波理工学院高分子材料与工程研究所,浙江宁波315100 [2]浙江大学高分子复合材料研究所高分子合成与功能构造教育部重点实验室,浙江杭州310027 [3]宁波福天新材料科技有限公司,浙江慈溪315315

出　　处：《高分子材料科学与工程》2012年第11期84-88,共5页Polymer Materials Science & Engineering

摘　　要：以活性单体甲基丙烯酸缩水甘油酯(GMA)对聚苯醚(PPO)进行熔融接枝,制备PPO-g-GMA接枝共聚物,以此作为相容剂与PPO和尼龙6(PA6)熔融共混,重点研究了PPO-g-GMA含量对共混物形态结构和性能的影响。在PPO/PA6(质量比60/40)共混物中加入相容剂PPO-g-GMA后,PPO-g-GMA中的环氧基团与PA6分子链上的端氨基或端羧基发生反应,增强了界面粘附力,相形态由海-岛结构转变为双连续结构,共混物的拉伸强度和冲击强度提高,吸水性降低。在PPO-g-GMA添加量为5phr时,拉伸强度由42.0MPa增加到59.5MPa,冲击强度由2 kJ/m2增加到3.7 kJ/m2,同时吸水性由1.75%下降到1.46%。Poly （phenylene oxide） grafted glycidyl methacrylate copolymer （PPO-g-GMA） was prepared by grafting poly（phenylene oxide） （PPO） with glycidyl methacrylate （GMA） monomer and used as the compatibilizer of PPO/polyamide 6 （PA6） （mass ration 60/40） blend. Influence of PPO-g-GMA content on the morphology and properties of the blend was studied. The glycidyl group in PPO-g-GMA could react with the terminal amine or carbonyl group of PA6, thus the interfacial interaction of PPO and PA6 increasing. When PPO-g-GMA was added into PPO/PA6 （mass ration 60/40） blend, the phase structure changed from sea-island to co-continuous, and the complex viscosity and storage modulus increased significantly. The difference between the glass transition temperature of PPO and PA6 decreased with the PPO-g-GMA content increasing, which supplied an additional evidence to the compatibilization effect of PPO-g-GMA. When the content of PPO-g-GMA was 5phr, the tensile strength of blend increased to 59.5 MPa and the impact strength increased to 3.7 kJ/m2. Also the water absorption decreased from 1.75 % to 1.46 %.

关 键 词：甲基丙烯酸缩水甘油酯 聚苯醚 聚酰胺 接枝 增容 

分 类 号：TQ326.53[化学工程—合成树脂塑料工业]