中国塑料2018，Vol.32Issue(2)：81-85,5.DOI:10.19491/j.issn.1001-9278.2018.02.013
挤出加工方法对制备PP/PET原位微纤共混物微观形态的影响
Effect of Extrusion Processing Methods on Microfibrillar Micromorphology of PP/PET Blends
刘欢 1王益龙 1刘冰 1娜迪热·加沙热提1
作者信息
- 1. 大连理工大学化工学院,辽宁大连116024
- 折叠
摘要
Abstract
Polypropylene (PP)/poly(ethylene terephthalate) (PET) blends were prepared by a twin-screw extruder,and a single-screw extruder with different screw construction and high-shearing extrusion die respectively,and effect of extrusion processing methods on their microfibrillar micromorphology was investigated by scanning electron microscopy.The results indicated that only PET particles as a dispersion phase were formed in the PP matrix when processed by the twin-screw or single-screw extruder with three-zone screws.When using the single-screw extruder equipped with a Maddock mixing section screw,some short and thick PET microfibrils were observed.Nevertheless,the microfibrils with a mean diameter of 5 μm and a length (L)/diameter (D) ratio over 20 could be achieved in the PP/PET blends when being melt-extruded with the single-screw extruder,followed by hot stretching and quenching.However,the equipment for this process is too complicated to realize the industrialization.Moreover,using a single-screw extruder equipped with a custom-designed high-shearing extrusion die,the microfibrils with a diameter of 5～7μm and a L/D ratio over 20 could also be generated in the matrix.This method is facile to be industrialized.关键词
挤出机/聚丙烯/聚对苯二甲酸乙二醇酯/共混物/原位微纤Key words
extruder/polypropylene/poly(ethylene terephthalate)/blend/in-situ microfibril分类
化学化工引用本文复制引用
刘欢,王益龙,刘冰,娜迪热·加沙热提..挤出加工方法对制备PP/PET原位微纤共混物微观形态的影响[J].中国塑料,2018,32(2):81-85,5.
