PE-g-PEO/PEO共混体系的相容性及结晶行为研究  

Study on Compatibility and Crystallization Behaviors of PE-g-PEO / PEO Blends

作　　者：段衍鹏[1] 赵云鹏[1] 刘景[1] 陈宝林[1] 张岩[1] 李永波[1] 

机构地区：[1]中国兵器工业集团第五三研究所,山东济南250031

出　　处：《塑料工业》2015年第4期19-22,41,共5页China Plastics Industry

摘　　要：利用傅里叶红外光谱(FTIR)对聚乙烯(PE)接枝聚氧化乙烯(PEO)共聚物(PE-g-PEO)进行结构表征。采用溶液共混方法制备了PE-g-PEO/PEO共混物,采用偏光显微镜、差动热分析仪(DSC)等对比分析了PE-gPEO/PEO和PE/PEO共混物的相容及结晶性。结果表明,共混物的相容性与其组成有关,在PE-g-PEO与PEO共混质量比为9∶1时相容性最好。PEO质量分数超过70%时室温下能观察到球晶的生长过程。PE-g-PEO/PEO共混体系的相容性比PE/PEO好,PE-g-PEO在共混过程中起到了增容剂的作用。The chemical structure of polyethylene （PE） grafting polyethylene oxide （PEO） copolymer （PE-g-PEO） was confirmed by Fourier transform infrared spectoscopy （FTIR）. The PE-g-PEO/PEO blends were prepared by solution mixing. The miscibility and crystallization behaviors of PE-g-PEO/PEO and PE/ PEO blends were studied by polarizing microscopy （POM） and differential scanning calorimetry （DSC）. The results showed that the miscibility of PE-g-PEO/PEO blends was related to the blends composition, which was the best when the mass ratio of PE-g-PEO to PEO was 9 ： 1. The growth process of PEO spherulites was observed when the PEO mass fraction was over 70%. The compatibility of PE-g-PEO/PEO blends was better than that of PE/PEO blends, and PE-g-PEO acted as an effective compatibilizer.

关 键 词：聚乙烯 聚氧化乙烯 溶液共混 相容性 结晶 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]