Non-Newtonian Viscosity of Dilute High Polymer Solutions. III. On the Method of Measuring Zero Shear Viscosity

1957 ◽  
Vol 30 (4) ◽  
pp. 354-357
Author(s):  
Toshiaki Kuroiwa
Keyword(s):  
Shear Viscosity ◽  
Polymer Solutions ◽  
High Polymer ◽  
Newtonian Viscosity ◽  
Zero Shear Viscosity

scholarly journals Zero-Shear Viscosity of Aqueous Solutions of Sodium Hyarulonate: Analysis as Semiflexible Polymer Solutions.

2001 ◽  
Vol 29 (4) ◽  
pp. 201-204 ◽  
Author(s):  
Takahiro Sato ◽  
Shin-ichi Yamamoto ◽  
Toshikazu Takigawa ◽  
Toshiro Masuda
Keyword(s):  
Aqueous Solutions ◽  
Shear Viscosity ◽  
Polymer Solutions ◽  
Zero Shear Viscosity ◽  
Semiflexible Polymer

scholarly journals Zero-Shear Viscosity of Branched Polymer Solutions

1986 ◽  
Vol 18 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Yoshiaki Takahashi ◽  
Fumitoshi Suzuki ◽  
Masahiko Miyachi ◽  
Ichiro Noda ◽  
Mitsuru Nagasawa
Keyword(s):  
Shear Viscosity ◽  
Polymer Solutions ◽  
Zero Shear Viscosity ◽  
Branched Polymer

Rheological Studies of Dynamically Vulcanized and Mechanical Blends of Polypropylene and Ethylene-Propylene Rubber

1995 ◽  
Vol 68 (5) ◽  
pp. 728-738 ◽  
Author(s):  
Peter K. Han ◽  
James L. White
Keyword(s):  
Shear Viscosity ◽  
Liquid Crystalline ◽  
Complex Viscosity ◽  
Normal Stresses ◽  
State Structure ◽  
Newtonian Viscosity ◽  
Zero Shear Viscosity ◽  
Flexible Chain ◽  
Ethylene Propylene ◽  
Yield Value

Abstract An experimental study is presented of the rheological properties of (i) polypropylene, (ii) a commercial polypropylene/ethylene-propylene terpolymer a dynamically vulcanized blend (PP/EDPM-TPE) and (iii) a mechanical blend of a polypropylene and an ethylene-propylene copolymer. The polypropylene behaves as a typical flexible chain thermoplastic exhibiting a zero shear viscosity and higher shear rate non-Newtonian viscosity, well defined normal stresses, an elongational viscosity three times the zero shear viscosity, and an equality of the shear viscosity and the complex viscosity (Cox-Merz Rule). The PP/EPM-TPE exhibits an apparent yield value in shear flow, unmeasurable normal stresses and a complex viscosity which is much greater than the shear viscosity. This is behavior similar to that of particle filled compounds, block copolymers and liquid crystalline thermoplastics and suggests a material with a rest state structure. The behavior of the PP/EPM mechanical blend is intermediate.

Entanglement Effects in Semiflexible Polymer Solutions. 1. Zero-Shear Viscosity of Poly(n-hexyl isocyanate) Solutions

1995 ◽  
Vol 28 (18) ◽  
pp. 6095-6099 ◽  
Author(s):  
Atsuyuki Ohshima ◽  
Hiroyuki Kudo ◽  
Takahiro Sato ◽  
Akio Teramoto
Keyword(s):  
Shear Viscosity ◽  
Polymer Solutions ◽  
Zero Shear Viscosity ◽  
Semiflexible Polymer

Relaxation times of polymer solutions in the semidilute region for zero-shear viscosity

1988 ◽  
Vol 21 (7) ◽  
pp. 2257-2262 ◽  
Author(s):  
Yoshiaki Takahashi ◽  
Masanari Umeda ◽  
Ichiro Noda
Keyword(s):  
Shear Viscosity ◽  
Polymer Solutions ◽  
Relaxation Times ◽  
Zero Shear Viscosity
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