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dc.contributor.author
Lang, Christian
dc.contributor.author
Hendricks, Jan
dc.contributor.author
Zhang, Zhenkun
dc.contributor.author
Reddy, Naveen K.
dc.contributor.author
Rothstein, Jonathan P.
dc.contributor.author
Lettinga, M.P.
dc.contributor.author
Vermant, Jan
dc.contributor.author
Clasen, Christian
dc.date.accessioned
2019-02-25T08:21:59Z
dc.date.available
2019-02-14T03:33:40Z
dc.date.available
2019-02-25T08:21:59Z
dc.date.issued
2019-02-07
dc.identifier.other
10.1039/c8sm01925h
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/325074
dc.identifier.doi
10.3929/ethz-b-000325074
dc.description.abstract
The linear and nonlinear rheological behavior of two rod-like particle suspensions as a function of concentration is studied using small amplitude oscillatory shear, steady shear and capillary breakup extensional rheometry. The rod-like suspensions are composed of fd virus and its mutant fdY21M, which are perfectly monodisperse, with a length on the order of 900 nm. The particles are semiflexible yet differ in their persistence length. The effect of stiffness on the rheological behavior in both, shear and extensional flow, is investigated experimentally. The linear viscoelastic shear data is compared in detail with theoretical predictions for worm-like chains. The extensional properties are compared to Batchelor's theory, generalized for the shear thinning nature of the suspensions. Theoretical predictions agree well with the measured complex moduli at low concentrations as well as the nonlinear shear and elongational viscosities at high flow rates. The results in this work provide guidelines for enhancing the elongational viscosity based on purely frictional effects in the absence of strong normal forces which are characteristic for high molecular weight polymers.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Effects of particle stiffness on the extensional rheology of model rod-like nanoparticle suspensions
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2018-11-29
ethz.journal.title
Soft matter
ethz.journal.volume
15
en_US
ethz.journal.issue
5
en_US
ethz.pages.start
833
en_US
ethz.pages.end
841
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.place
Cambridge
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2019-02-14T03:33:43Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-02-25T08:22:14Z
ethz.rosetta.lastUpdated
2019-02-25T08:22:14Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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