Hierarchical multi-mode molecular stress function (HMMSF) model for linear and LCB polymer melts

Esmaeil Narimissa*, Manfred H. Wagner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have developed a novel Hierarchical Multi-mode Molecular Stress Function (HMMSF) model for linear and long-chain branched (LCB) polymer melts implementing the basic ideas of (i) hierarchical relaxation, (ii) dynamic dilution, (iii) interchain tube pressure, and (iv) convective constraint release. The excellent predictions of this model were demonstrated in uniaxial, equibiaxial, and planar extensional deformation for linear and LCB melts, as well as in shear flow for a LCB polymer, with a minimum number of adjustable free nonlinear material parameters, i.e. one in the case of extensional flows, and two in shear flow.

Original languageEnglish
Title of host publicationProceedings of PPS-34
Subtitle of host publication34th International Conference of the Polymer Processing Society - Conference Papers
EditorsShih-Jung Liu
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417939
DOIs
StatePublished - 6 Feb 2019
Event34th International Conference of the Polymer Processing Society, PPS 2018 - Taipei, Taiwan, Province of China
Duration: 21 May 201825 May 2018

Publication series

NameAIP Conference Proceedings
Volume2065
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference34th International Conference of the Polymer Processing Society, PPS 2018
CountryTaiwan, Province of China
CityTaipei
Period21/05/1825/05/18

Keywords

  • Extensional Flow
  • Molecular Stress Function
  • Polymer Melt
  • Rheological Modeling
  • Shear Flow

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