flow birefringence
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2020 ◽  
Vol 313 ◽  
pp. 113401 ◽  
Author(s):  
Péter Salamon ◽  
Yong Geng ◽  
Alexey Eremin ◽  
Ralf Stannarius ◽  
Susanne Klein ◽  
...  

Author(s):  
Shogo Yamashita ◽  
Takaaki Kasuga ◽  
Shunichi Suwa ◽  
Takashi Miyaki ◽  
Masaya Nogi ◽  
...  

2018 ◽  
Vol 46 (5) ◽  
pp. 221-226 ◽  
Author(s):  
Reina Tanaka ◽  
Shangwei Li ◽  
Yu Kashiwagi ◽  
Tadashi Inoue

2018 ◽  
Vol 778 ◽  
pp. 158-168
Author(s):  
Maryam Mudasir ◽  
Riaz Ahmed

Rheological investigations are reported for pure polypropylene and its clay-nanocomposites to establish viscoelastic properties and filler concentration relationship. Flow birefringence is performed through a slit-die to obtain centerline principal stress difference during extensional flow. The centerline stress profile of clay-nanocomposite revealed additional viscoelastic nature even at low silicate concentrations whereas no exceptional strain hardening was reported. Effects of higher filler concentrations are further examined during the simple shearing flow to consider non-linear viscoelasticity in terms of damping function. The increase in damping coefficient with increasing clay concentration shows polymer-nanocomposites are more strain sensitive. The Wagner's exponential damping function could adequately describe the time-strain separability at all clay concentrations studied. The results of both investigations reveal that the polymers are time-strain separable at all clay concentrations studied during elongational and simple shearing flows, whereas filler orientations are found to be different for different melt flow behavior.


2013 ◽  
Vol 55 (4) ◽  
pp. 213-217 ◽  
Author(s):  
A. I. Kononov ◽  
M. A. Sibileva ◽  
N. A. Mikhailova ◽  
A. E. Grishchenko

2012 ◽  
pp. 435-445
Author(s):  
Igor N. Serdyuk ◽  
Nathan R. Zaccai ◽  
Joseph Zaccai
Keyword(s):  

BIOPHYSICS ◽  
2012 ◽  
Vol 8 ◽  
pp. 21-25
Author(s):  
You Jia ◽  
Masaaki Kuroda
Keyword(s):  

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