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Thermoplastic polyurethane/polypropylene blends in a co-rotating non-twin screws extruder
- 作者:Jia-sheng Luo (1) (2)
Bai-ping Xu (1) (2) Hui-wen Yu (1) Yao-xue Du (2) Yan-hong Feng (3)
1. Technology Development Center for Polymer Processing Engineering of Guangdong Colleges and Universities ; Guangdong Industry Technical College ; Guangzhou ; 510300 ; China 2. College of Mechanical and Electrical Engineering ; Wuyi University ; Jiangmen Guangdong ; 529020 ; China 3. National Engineering Research Center of Novel Equipment for Polymer Processing ; South China University of Technology ; Guangzhou ; 510640 ; China
- 关键词:Non ; twin screws ; Extrusion ; Mixing ; Morphology ; Mechanical properties
- 刊名:Fibers and Polymers
- 出版年:2015
- 出版时间:January 2015
- 年:2015
- 卷:16
- 期:1
- 页码:95-104
- 全文大小:2,769 KB
- 参考文献:1. Varga, J. (1992) J. Mater. Sci. 27: pp. 2557 CrossRef
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- 刊物类别:Chemistry and Materials Science
- 刊物主题:Chemistry
Polymer Sciences
- 出版者:The Korean Fiber Society
- ISSN:1875-0052
文摘
Thermoplastic polyurethane (TPU)/polypropylene (PP) blends of different weight ratios were prepared with a self-made co-rotating non-twin screws extruder (NTSE), which rotates at a speed ratio of 2.0, and a traditional twin-screw extruder (TSE), which rotates at a speed ratio of 1.0. The mechanical properties, phase morphology and thermal stabilities were investigated to characterize the effect of different processing methods. The experimental results revealed that the samples prepared with a NTSE had superior mechanical properties compared to those of the samples prepared with a TSE. High-resolution scanning electron microscopy showed a structure feature of fiber morphology of TPU/PP blends prepared with a NTSE and the particle size of dispersed phase of blends prepared with NTSE is smaller than that prepared with TSE, indicating that the NTSE is more efficient in mixing for immiscible polymer blends. Furthermore, thermogravimetric analysis curves indicated the strong interaction of the TPU/PP blends influenced by the flow field in NTSE, compared to that of TSE-extruded.
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