期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
卷 57, 期 11-12, 页码 732-745出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00222348.2018.1527517
关键词
Bipolar cylindrical coordinates; extensional extruder; extensional flow field; extruder velocity distribution; Newtonian fluids; power-law fluids
资金
- Guangzhou Science and Technology Plan Project [201541]
- Innovation and Strengthen University Project of Guangzhou Maritime Institute [A330106?B510647]
- Natural Science Foundation of Guangdong Province [2015A030313819]
- Science and Technology Plan Project of Department of Communications of Guangdong Province [2015-02-047]
- Natural Science Foundation of Fujian Province [2015J01629]
The extensional extruder is a novel method of polymer processing which generates high elongation stress within a polymer. A mathematical model is proposed which describes the velocity distribution during polymer processing in such an extruder. The modeling results indicate that the dimensionless velocity profiles for power-law fluids decrease as the power-law index increases. Overall, the extensional extruder has an advantage for dispersion effects over traditional screw extruders based on the extensional rheology.
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