A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows

被引：18
|
作者：
Narimissa, Esmaeil [1 ]
Rolon-Garrido, Victor H. [1 ]
Wagner, Manfred H. [1 ]
机构：
[1] Berlin Inst Technol TU Berlin, Polymer Engn Polymer Phys, Fasanenstr 90, D-10623 Berlin, Germany
来源：
RHEOLOGICA ACTA | 2016年 / 55卷 / 04期
关键词：
Molecular stress function model; Biaxial flow; Multiaxial extensional flow; Polyethylene; Polymer melt; Elongational flow; BIAXIAL EXTENSION; ELONGATIONAL FLOW; STRESS-RELAXATION; ENTANGLED POLYMER; STRAIN RATE; VISCOSITY; PLANAR; SHEAR; POLYPROPYLENE; POLYSTYRENE;
D O I：
10.1007/s00397-016-0922-y
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In part I, a novel hierarchical multi-mode molecular stress function (HMMSF) model for long-chain branched (LCB) polymer melts has been proposed, which implements the basic ideas of (i) the pom-pom model, (ii) hierarchal relaxation, (iii) dynamic dilution, and (iv) interchain pressure. Here, the capability of this approach is demonstrated in modelling the extensional viscosity data of a broadly distributed long-chain branched polymer melt in uniaxial, equibiaxial, and planar extensional deformations with only a single non-linear parameter, the dilution modulus, which quantifies the fraction of dynamically diluted chain segments.
引用
收藏
页码：327 / 333
页数：7
相关论文
共 29 条
  • [21] A hierarchical algorithm for predicting the linear viscoelastic properties of polymer melts with long-chain branching
    Seung Joon Park
    Sachin Shanbhag
    Ronald G. Larson
    Rheologica Acta, 2005, 44 : 319 - 330
  • [22] Numerical study of the rheology of rigid fillers suspended in long-chain branched polymer under planar extensional flow
    Ahamadi, M.
    Harlen, O. G.
    JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 2010, 165 (5-6) : 281 - 291
  • [23] Linear rheology of diluted linear, star and model long chain branched polymer melts
    Daniels, DR
    McLeish, TCB
    Kant, R
    Crosby, BJ
    Young, RN
    Pryke, A
    Allgaier, J
    Groves, DJ
    Hawkins, RJ
    RHEOLOGICA ACTA, 2001, 40 (05) : 403 - 415
  • [24] Linear rheology of diluted linear, star and model long chain branched polymer melts
    D. Robert Daniels
    Thomas C. B. McLeish
    Rama Kant
    Bryan J. Crosby
    Ronald N. Young
    Andrew Pryke
    Jürgen Allgaier
    D. J. Groves
    R. J. Hawkins
    Rheologica Acta, 2001, 40 : 403 - 415
  • [25] Modelling of Elongational Flow of HDPE Melts by Hierarchical Multi-Mode Molecular Stress Function Model
    Poh, Leslie
    Narimissa, Esmaeil
    Wagner, Manfred H.
    POLYMERS, 2021, 13 (19)
  • [26] Mechanical pretreatment of polymer melts: Critical aspects and new rheological investigations on a linear and a long-chain branched polypropylene
    Muenstedt, Helmut
    JOURNAL OF RHEOLOGY, 2021, 65 (05) : 871 - 885
  • [27] Analytical rheology: Linear viscoelasticity of model and commercial long-chain-branched polymer melts
    Shanbhag, Sachin
    Park, Seung Joon
    Zhou, Qiang
    Larson, Ronald
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 231
  • [28] A critical analysis of using step-strain and extensional rheology to obtain the multi-mode "Pom-Pom" model parameters for branched high-density polyethylenes
    McGrady, Christopher D.
    Seay, Christopher W.
    Baird, Donald G.
    Auhl, Dietmar
    McLeish, Tom C.
    XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2, 2008, 1027 : 409 - +
  • [29] Advanced Monte Carlo Algorithm for the Atomistic Simulation of Short- and Long-Chain Branched Polymers: Implementation for Model H-Shaped, A3AA3 Multiarm (Pom-Pom), and Short-Chain Branched Polyethylene Melts
    Baig, Chunggi
    Alexiadis, Orestis
    Mavrantzas, Vlasis G.
    MACROMOLECULES, 2010, 43 (02) : 986 - 1002
123