Brownian dynamics simulation of branched polymer extensional rheological properties

Author

Min, Zhiyu ; Lei, Jian ; Cao, Wei ; Shen, Changyu

Author_Institution

Luoyang Inst. of Sci. & Technol., Luoyang, China

Volume

1

fYear

2010

fDate

26-28 Feb. 2010

Firstpage

752

Lastpage

755

Abstract

Finitely extensible nonlinear elastic (FENE) bead-spring chain model for dilute solutions of branched polymer molecules in a Newtonian solvent is employed to describe the bead-bead interaction within a molecule. Brownian dynamics simulation is used to capture the steady state and transient rheological behavior of branched polymer in extensional flow. The simulations include examination of the effects of viscosity depending on length of the branching chain, spring parameter, and extensional rate. The flow situations and the rheological material functions are investigated. A large difference on the rheological response to different finite extensibility length is observed in this study.

Keywords

Brownian motion; non-Newtonian flow; polymer solutions; rheology; viscosity; Brownian dynamics simulation; Newtonian solvent; bead-bead interaction; branched polymer molecules; branching chain; dilute solutions; extensional flow; extensional rheological properties; finite extensibility length; finitely extensible nonlinear elastic bead-spring chain model; spring parameter; steady state Theological behavior; transient Theological behavior; viscosity; Drag; Electronic mail; Equations; Hydrodynamics; Nonlinear dynamical systems; Polymers; Rheology; Solvents; Springs; Viscosity; Branched polymer; Brownian dynamics; Dilute polymer solutions; FENE bead-spring chain model; Rheology;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-5585-0

Electronic_ISBN

978-1-4244-5586-7

Type

conf

DOI

10.1109/ICCAE.2010.5451256

Filename

5451256