Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt

Zeng-ge Guo; Xin Li; Jian Li; Bin Zhang; Bo-wen Cheng

doi:10.1007/s10118-014-1482-1

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Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt

Updated：2021-06-21

- Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt
- Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt
- Chinese Journal of Polymer Science 2014年32卷第7期页码：923-930
- Affiliations：
  
  a.State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China
  b.State Key Laboratory of Bio-based Fiber Manufacture Technology, China Textile Academy, Beijing 100080, China
- Author bio：
  
  **Bo-wen Cheng (程博闻), E-mail: bowen15@tjpu.edu.cn
- Funds：
  
  National "Twelfth Five-Year" Plan for Science & Technology(2011BAE05B00);State Key Laboratory of Hollow Fiber Membrane Materials and Processes
- DOI：10.1007/s10118-014-1482-1
  中图分类号：
- 收稿：2013-10-29，
  
  修回：2014-01-09，
  
  录用：2014-01-13，
  
  纸质出版：2014-07
- Accepted：
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Zeng-ge Guo, Xin Li, Jian Li, 等. Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt[J]. Chinese Journal of Polymer Science, 2014,32(7):923-930.

Zeng-ge Guo, Xin Li, Jian Li, et al. Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt[J]. Chinese Journal of Polymer Science, 2014, 32(7): 923-930.
Zeng-ge Guo, Xin Li, Jian Li, 等. Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt[J]. Chinese Journal of Polymer Science, 2014,32(7):923-930. DOI： 10.1007/s10118-014-1482-1.

Zeng-ge Guo, Xin Li, Jian Li, et al. Influence of Reverse Pressure on the Shear Viscosity of Hydrophilic Poly(ethylene terephthalate) Melt[J]. Chinese Journal of Polymer Science, 2014, 32(7): 923-930. DOI： 10.1007/s10118-014-1482-1.

摘要

Abstract

The effect of reverse pressure.on rheological behavior has been studied. The apparatus is a capillary rheometer with counter pressure chamber being held at a high reverse pressure by means of a cock. The results show that with the increase in temperature

the shear viscosity of hydrophilic PET is reduced. It is different that the effect of temperature on shear viscosity is varied under the condition of all shear rates or all pressures

and the effect is more prominent at 50 MPa or at 216 s

−1

. At the same time

the pressure coefficients decrease with increasing the shear rate and the temperature and tend to reach a constant value nearly at the temperature of 290 ℃.

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