NDLI: Linear and nonlinear viscoelasticity of polymer/silica nanocomposites: an understanding from modulus decomposition

Content Provider	Springer Nature Link
Author	Wang, Jun Guo, Ying Yu, Wei Zhou, Chixing Steeman, Paul
Copyright Year	2015
Abstract	We investigate the linear and nonlinear viscoelasticity of a model polymer nanocomposite of fumed silica nanoparticles in poly-(ethylene-co-α-butene) (PEB). Above a critical filler fraction, a space-filling network builds up as a result of cluster agglomeration and causes the material to change from liquid-like to solid-like states. Using the Winter-Chambon criterion, the percolation threshold from the measured dynamic moduli is found to depend strongly on the matrix viscoelasticity even when the particle dispersion is identical. Such phenomenon comes from the implicit assumption in the method that the contribution from particles (or particle agglomerates) should dominate the dynamic moduli, which is usually inapplicable when polymer has a high viscosity (or elasticity). A new method is suggested to decompose the moduli of composites into the hydrodynamic part and the part from particle agglomerates by taking into consideration the different effects of particles on the strain rate and stress. The two portions are shown to depend on oscillatory frequency, which are adopted to extrapolate the dynamic moduli to lower frequency. The percolation threshold from these extrapolated data becomes independent of the matrix viscoelasticity. Furthermore, it is found that the appearance of nonlinear behavior in oscillatory shear is related to the portion of particle agglomerates in storage modulus and the strain rate is the key factor to destroy the structures.
Starting Page	37
Ending Page	50
Page Count	14
File Format	PDF
ISSN	00354511
Journal	Rheologica Acta
Volume Number	55
Issue Number	1
e-ISSN	14351528
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-12-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polymer nanocomposites Percolation Rheology Characterization and Evaluation of Materials Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Mechanical Engineering Food Science
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Materials Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modeling confinement in polymer nanocomposites from linear viscoelasticity data

Blood linear viscoelasticity by small amplitude oscillatory flow

Nonlinear viscoelasticity of complex fluids: A kinetic network model

Scaling and mesostructure of Carbopol dispersions

Viscoelastic melt rheology and time–temperature superposition of polycarbonate–multi-walled carbon nanotube nanocomposites

Rheological and mechanical properties of silica colloids: from Newtonian liquid to brittle behaviour

Padé approximants for large-amplitude oscillatory shear flow

Rheology of SiO2/(acrylic polymer/epoxy) suspensions. I. Linear viscoelasticity

Blood rheology in shear and uniaxial elongation

Linear and nonlinear viscoelasticity of polymer/silica nanocomposites: an understanding from modulus decomposition

Similar Documents

Modeling confinement in polymer nanocomposites from linear viscoelasticity data

Blood linear viscoelasticity by small amplitude oscillatory flow

Nonlinear viscoelasticity of complex fluids: A kinetic network model

Scaling and mesostructure of Carbopol dispersions

Viscoelastic melt rheology and time–temperature superposition of polycarbonate–multi-walled carbon nanotube nanocomposites

Rheological and mechanical properties of silica colloids: from Newtonian liquid to brittle behaviour

Padé approximants for large-amplitude oscillatory shear flow

Rheology of SiO2/(acrylic polymer/epoxy) suspensions. I. Linear viscoelasticity

Blood rheology in shear and uniaxial elongation

Linear and nonlinear viscoelasticity of polymer/silica nanocomposites: an understanding from modulus decomposition