Morphology study of immiscible polymer blends in a vane extruder

作者：Qu Jin Ping^*; Chen Hui Zhuo; Liu Shu Rong; Tan Bin; Liu Li Ming; Yin Xiao Chun; Liu Quan Jin; Guo Rui Biao

来源：Journal of Applied Polymer Science, 2013, 128(6): 3576-3585.

DOI：10.1002/app.38573

• morphology
• blends
• extrusion

This study reports the morphology development of polymer blends in a novel vane extruder in which polymer mainly suffers from elongational deformation field. Rapidly cooled samples of polypropylene/polystyrene (PP/PS) are collected in the vane extruder after stable extrusion. Furthermore, the shape and size of the dispersed phase from initial to final stages are analyzed. In addition, in order to compare the final size of the dispersed phase, different immiscible blends, including polypropylene/polyamide and PP/PS, are prepared by vane extruder and twin-screw extruder, respectively. The results show that the dispersed phase is made to change rapidly from stretched striations to droplets under the strong elongational deformation field in the vane extruder. Furthermore, the droplet size of dispersed phase of blends prepared by vane extruder is much smaller than that prepared by twin-screw extruder, indicating that the vane extruder is more efficient in mixing for immiscible polymer blends.

• 出版日期2013-6-15
• 单位华南理工大学