Study on flow field of polylactic acid in the nose transition body of co-rotating twin-screw extruder

Authors

SHI Junfeng, School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China
HUANG Zhigang, School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China
JIANG Weixin, School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China
LI Menglin, School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China
ZHANG Hongjian, School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China

Abstract

Three-dimensional isothermal flow field of polylactic acid(PLA) of the nose transitional body of length to diameter ratio is 441 experiment with a small meshing direction twin-screw extruder head by using the PALYFLOW software. The fields of velocity, pressure, shear rate and viscosity with different process parameters are analyzed and compared. Results showed that the flow field effect become better with the increase of the screw speed and the flow rate at the appropriate temperature，but compared with the increase of the screw speed, the increase of the melt flow was more beneficial to improve mixing and plasticizing effect of the extruder head's transition flow field, and the quality of PLA products.

Publication Date

1-28-2017

First Page

72

Last Page

75

DOI

10.13652/j.issn.1003-5788.2017.01.017

Recommended Citation

Junfeng, SHI; Zhigang, HUANG; Weixin, JIANG; Menglin, LI; and Hongjian, ZHANG (2017) "Study on flow field of polylactic acid in the nose transition body of co-rotating twin-screw extruder," Food and Machinery: Vol. 33: Iss. 1, Article 17.
DOI: 10.13652/j.issn.1003-5788.2017.01.017
Available at: https://www.ifoodmm.cn/journal/vol33/iss1/17

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