中文摘要：

以甲基丙烯酸环氧丙酯接枝乙烯-辛烯共聚物（mPOE）为增容剂对回收聚对苯二甲酸乙二醇酯（r-PET）/乙烯-辛烯共聚物（POE）共混物进行增容改性。用HAAKE流变仪、差示扫描量热仪（DSC）、广角X射线衍射（WAXD）分别研究了不同mPOE含量对r-PET/POE共混物的扭矩变化和接枝共聚物对PET结晶性能的影响。结果表明,共混物的扭矩随着mPOE含量的增加而增大,即mPOE与r-PET生成的接枝共聚物POE-g-PET含量增大。DSC和WAXD结果表明,POE对PET有异相成核作用,而POE-g-PET共聚物对PET结晶有一定的阻碍作用。

英文摘要：

Blends of recycled poly（ethylene terephthalate）（r-PET） and poly（ethylene octene）（mPOE） compatibilized by glycidyl methacrylate grafted poly（ethylene octene） （mPOE） were prepared on a twin screw extruder.The amount of PET-g-POE copolymers in blends with different compatilizer contents,and the effect of copolymers on nonisothermal crystallization and melting behaviors of the blends were investigated by HAAKE rholometer,differential scanning calorimetry（DSC） and wide-angle X-ray diffraction（WAXD） measurement,respectively.The results indicate that the amount of PET-g-POE copolymers in blends increases with mPOE contents increasing.PET exhibits heterogeneous nucleation and increases crystallization rate in the presence of POE.While the crystallization rates of r-PET/POE blends decrease with the amount of PET-g-POE copolymers increasing.