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Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows

Francesco Del Giudice Orcid Logo, Gaetano D'Avino, Francesco Greco, Ilaria De Santo, Paolo A. Netti, Pier Luca Maffettone

Lab on a Chip, Volume: 15, Issue: 3, Pages: 783 - 792

Swansea University Author: Francesco Del Giudice Orcid Logo

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DOI (Published version): 10.1039/c4lc01157k

Abstract

A novel method to estimate the relaxation time of viscoelastic fluids, down to milliseconds, is here proposed. The adopted technique is based on the particle migration phenomenon occurring when the suspending viscoelastic fluid flows in microfluidic channels. The method is applied to measure the flu...

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Published in: Lab on a Chip
ISSN: 1473-0197 1473-0189
Published: 2015
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URI: https://cronfa.swan.ac.uk/Record/cronfa41006
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first_indexed 2018-07-13T19:35:35Z
last_indexed 2020-12-19T04:01:55Z
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spelling 2020-12-18T14:10:13.8157227 v2 41006 2018-07-13 Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows 742d483071479b44d7888e16166b1309 0000-0002-9414-6937 Francesco Del Giudice Francesco Del Giudice true false 2018-07-13 CHEG A novel method to estimate the relaxation time of viscoelastic fluids, down to milliseconds, is here proposed. The adopted technique is based on the particle migration phenomenon occurring when the suspending viscoelastic fluid flows in microfluidic channels. The method is applied to measure the fluid relaxation times of two water–glycerol polymer solutions in an ample range of concentrations. A remarkable improvement in the accuracy of the measure of the relaxation time is found, as compared with experimental data obtained from shear or elongational experiments available in the literature. Good agreement with available theoretical predictions is also found. The proposed method is reliable, handy and does not need a calibration curve, opening an effective way to measure relaxation times of viscoelastic fluids otherwise not easily detectable by conventional techniques. Journal Article Lab on a Chip 15 3 783 792 1473-0197 1473-0189 7 2 2015 2015-02-07 10.1039/c4lc01157k COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2020-12-18T14:10:13.8157227 2018-07-13T14:38:40.6630427 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Francesco Del Giudice 0000-0002-9414-6937 1 Gaetano D'Avino 2 Francesco Greco 3 Ilaria De Santo 4 Paolo A. Netti 5 Pier Luca Maffettone 6
title Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
spellingShingle Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
Francesco Del Giudice
title_short Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
title_full Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
title_fullStr Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
title_full_unstemmed Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
title_sort Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows
author_id_str_mv 742d483071479b44d7888e16166b1309
author_id_fullname_str_mv 742d483071479b44d7888e16166b1309_***_Francesco Del Giudice
author Francesco Del Giudice
author2 Francesco Del Giudice
Gaetano D'Avino
Francesco Greco
Ilaria De Santo
Paolo A. Netti
Pier Luca Maffettone
format Journal article
container_title Lab on a Chip
container_volume 15
container_issue 3
container_start_page 783
publishDate 2015
institution Swansea University
issn 1473-0197
1473-0189
doi_str_mv 10.1039/c4lc01157k
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 0
active_str 0
description A novel method to estimate the relaxation time of viscoelastic fluids, down to milliseconds, is here proposed. The adopted technique is based on the particle migration phenomenon occurring when the suspending viscoelastic fluid flows in microfluidic channels. The method is applied to measure the fluid relaxation times of two water–glycerol polymer solutions in an ample range of concentrations. A remarkable improvement in the accuracy of the measure of the relaxation time is found, as compared with experimental data obtained from shear or elongational experiments available in the literature. Good agreement with available theoretical predictions is also found. The proposed method is reliable, handy and does not need a calibration curve, opening an effective way to measure relaxation times of viscoelastic fluids otherwise not easily detectable by conventional techniques.
published_date 2015-02-07T03:52:15Z
_version_ 1763752579557228544
score 11.013148

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