Title :
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
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;
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
DOI :
10.1109/ICCAE.2010.5451256
