Shear and extensional rheological evaluation of polylactide-nanographite platelet nanocomposites through constitutive equations

Esmaeil Narimissa, Rahul K. Gupta*, Nhol Kao, Sati Bhattacharya

*Corresponding author for this work

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

Abstract

Polymer based nanocomposites are fabricated through the incorporation of nanoscale inorganic solids into polymeric matrix. The focus of this research was on the production and rheological investigation of polylactide (PLA) and nanographite platelets (NGP) based bionanocomposites. In the current study, the linear viscoelastic behaviour of the samples was investigated in order to study the effects of the enhanced dispersion of NGP fillers on the rheological properties of the nanocomposites. Uniaxial extensional experiments were also carried out to analyse the impacts of the nanofillers on linear viscoelastic envelope (LVE) and non-linear viscoelastic behaviour (strain hardening region) of the nanocomposites. Furthermore, in order to provide an accurate prediction of the extensional viscosity behaviour of PLA/NGP nanocomposites, the modelling of strain-hardening behaviour of neat PLA and its nanocomposites was investigated using steady shear viscosity, relaxation spectrum and damping function based on Papanastasiou-Scriven-Macosko (PSM) version of Kaye-Bernstein-Kearsley-Zapas (K-BKZ) model.

Original languageEnglish
Title of host publication71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013
PublisherSociety of Plastics Engineers
Pages294-301
Number of pages8
ISBN (Print)9781632665300
StatePublished - 2013
Externally publishedYes
Event71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013 - Cincinnati, OH, United States
Duration: 22 Apr 201324 Apr 2013

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume1

Conference

Conference71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013
Country/TerritoryUnited States
CityCincinnati, OH
Period22/04/1324/04/13

Fingerprint

Dive into the research topics of 'Shear and extensional rheological evaluation of polylactide-nanographite platelet nanocomposites through constitutive equations'. Together they form a unique fingerprint.

Cite this