How polymeric solvents control shear inhomogeneity in large deformations of entangled polymer mixtures

2010 ◽  
Vol 50 (2) ◽  
pp. 97-105 ◽  
Author(s):  
Sham Ravindranath ◽  
Shi-Qing Wang ◽  
M. Olechnowicz ◽  
V. S. Chavan ◽  
R. P. Quirk
Keyword(s):  
Large Deformations ◽  
Polymer Mixtures ◽  
Entangled Polymer

Dynamics of Entangled Polymers

2015 ◽  
Author(s):  
Ronald G. Larson ◽  
Zuowei Wang
Keyword(s):  
Large Deformations ◽  
Nonlinear Viscoelasticity ◽  
Polymer Dynamics ◽  
Tube Model ◽  
Concentration Effects ◽  
Polymer Systems ◽  
Entangled Polymers ◽  
Entangled Polymer ◽  
Future Work ◽  
Entangled Polymer Solutions

This article explores the dynamics of entangled polymers, with particular emphasis on how the unusual and often dramatic mechanical properties of concentrated polymer systems are determined by the physics of entanglements. It begins with an overview of the foundations of entangled polymer dynamics, organized around tubes and slip links used in modeling entanglements, the packing length and concentration effects, the results of computer simulations on entanglements, topological contacts, and the effects of large deformations. The focus is on the nature of ‘entanglement’, both from a bottom-up molecular view, and from a phenomenological one. The discussion then turns to the linear viscoelasticity of entangled polymer solutions and melts, along with nonlinear viscoelasticity. Models of polymer dynamics in the linear regime are also described, including the ‘standard tube model’. The article concludes with suggestions for future work.

scholarly journals Role of viscoelasticity in non-equilibrium steady states of sheared entangled polymer mixtures

2017 ◽  
Vol 9 (8) ◽  
pp. 168781401771556 ◽  
Author(s):  
Gang Huang ◽  
Xiao-Wei Guo ◽  
Cheng-Kun Wu ◽  
Xiang Zhang ◽  
Canqun Yang
Keyword(s):  
Steady States ◽  
Polymer Mixtures ◽  
Entangled Polymer ◽  
Non Equilibrium

scholarly journals Non-equilibrium steady states of entangled polymer mixtures under shear flow

2015 ◽  
Vol 7 (6) ◽  
pp. 168781401559192 ◽  
Author(s):  
Xiao-Wei Guo ◽  
Wen-Jing Yang ◽  
Xin-Hai Xu ◽  
Yu Cao ◽  
Xue-Jun Yang
Keyword(s):  
Shear Flow ◽  
Steady States ◽  
Polymer Mixtures ◽  
Entangled Polymer ◽  
Non Equilibrium

On the Mechanical Behavior of the Orthotropic Cord-Rubber Composite

1976 ◽  
Vol 4 (4) ◽  
pp. 219-232 ◽  
Author(s):  
Ö. Pósfalvi
Keyword(s):  
Mechanical Behavior ◽  
Uniaxial Tension ◽  
Elastic Properties ◽  
Large Deformations ◽  
Virtual Work ◽  
Poisson's Ratio ◽  
Principle Of Virtual Work ◽  
Effective Elastic Properties ◽  
Rubber Composite ◽  
Mooney Equation

Abstract The effective elastic properties of the cord-rubber composite are deduced from the principle of virtual work. Such a composite must be compliant in the noncord directions and therefore undergo large deformations. The Rivlin-Mooney equation is used to derive the effective Poisson's ratio and Young's modulus of the composite and as a basis for their measurement in uniaxial tension.

The dynamics of an orthotropic torus undergoing large deformations

1994 ◽  
Author(s):  
Raouf Raouf ◽  
Anthony Palazotto
Keyword(s):  
Large Deformations

Specific volume and features of compressibility during the molding of powder-polymer mixtures with wax-polypropylene binder

2019 ◽  
pp. 25-33
Author(s):  
Alexander Muranov ◽  
Alexey Semenov ◽  
Anatoly Kutsbakh ◽  
Boris Semenov
Keyword(s):  
Phase Transition ◽  
Comparative Analysis ◽  
Powder Metallurgy ◽  
Injection Molding ◽  
Polymer Binder ◽  
Polymer Mixture ◽  
Powder Injection ◽  
Polymer Mixtures ◽  
Pvt Data ◽  
Mathematical Processing

The article discusses one of the modern areas of powder metallurgy – the technology of manufacturing shaped parts by the powder injection molding (PIM). For the powder-polymer mixture (feedstock) with a wax-polypropylene binder of the solvent-thermal type of removal by isobaric volume dilatometry, the dependence of PVT state parameters was studied. For each component of the polymer binder, the dependence of pressure on the temperature of phase transition was obtained. As a result of mathematical processing and analysis of PVT data for the feedstock of the studied type, a technological window of parameters has been determined that allows injection molding of «green parts» with minimal volume shrinkage. The results of a comparative analysis of the compaction of feedstock with a polymer binder catalytic and solution-thermal type of removal are presented.

Theory of Large Deformations of Metals

2019 ◽  
Vol 60 (5) ◽  
pp. 916-919
Author(s):  
V. M. Greshnov
Keyword(s):  
Large Deformations
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