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Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials

A. J. Holder, J. Claypole, Tim Claypole Orcid Logo, P. G. Cooper, Rhodri Williams Orcid Logo, Daniel Curtis Orcid Logo

Physics of Fluids, Volume: 30, Issue: 7, Start page: 077105

Swansea University Authors: Tim Claypole Orcid Logo, Rhodri Williams Orcid Logo, Daniel Curtis Orcid Logo

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DOI (Published version): 10.1063/1.5029819

Abstract

In this paper, the development of a multifrequency form of controlled stress parallel superposition rheometry is reported, along with the technique’s validation and use in model gelling systems and high-value particulate suspensions. The novel technique reported herein, termed Fourier transform cont...

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Published in: Physics of Fluids
ISSN: 1070-6631 1089-7666
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa43407
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spelling 2020-07-01T14:52:11.3221961 v2 43407 2018-08-14 Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials 7735385522f1e68a8775b4f709e91d55 0000-0003-1393-9634 Tim Claypole Tim Claypole true false 642bf793695f412ed932f1ea4d9bc3f1 0000-0002-6912-5288 Rhodri Williams Rhodri Williams true false e76ff28a23af2fe37099c4e9a24c1e58 0000-0002-6955-0524 Daniel Curtis Daniel Curtis true false 2018-08-14 MECH In this paper, the development of a multifrequency form of controlled stress parallel superposition rheometry is reported, along with the technique’s validation and use in model gelling systems and high-value particulate suspensions. The novel technique reported herein, termed Fourier transform controlled stress parallel superposition (FT-CSPS), facilitates measurements of the superposition shear moduli and their response to an imposed unidirectional shear stress. FT-CSPS measurements are reported in applications involving (i) the determination of the relaxation properties of incipient gel networks formed in rapidly gelling samples under bulk flow conditions and (ii) measurements of the parallel dynamic moduli of non-gelling samples that experience high rates of solvent loss. By probing the rheological properties of these rapidly evolving materials using a composite waveform comprising multiple harmonic frequencies, sample mutation artefacts (which limit the use of CSPS for such materials) have been minimised. Validation of FT-CSPS has been achieved by (i) showing coincidence of data obtained using CSPS and FT-CSPS for slowly gelling systems and (ii) continuation of the expected relation between gel strength and stress relaxation exponent beyond the range of data accessible to CSPS (limited by sample mutation considerations). This work demonstrates that the rapid acquisition of parallel superposition shear moduli is feasible and facilitates the use of CSPS-based techniques for tests involving rapidly changing materials (such as those undergoing rapid gelation or relatively rapid solvent loss). Journal Article Physics of Fluids 30 7 077105 1070-6631 1089-7666 Spectroscopy, Gels, Complex fluids, Viscoelasticity, Mechanical stress, Rheometry 31 12 2018 2018-12-31 10.1063/1.5029819 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2020-07-01T14:52:11.3221961 2018-08-14T15:46:30.6996495 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering A. J. Holder 1 J. Claypole 2 Tim Claypole 0000-0003-1393-9634 3 P. G. Cooper 4 Rhodri Williams 0000-0002-6912-5288 5 Daniel Curtis 0000-0002-6955-0524 6 0043407-14082018154900.pdf holder2018(2).pdf 2018-08-14T15:49:00.9130000 Output 1870648 application/pdf Accepted Manuscript true 2018-08-14T00:00:00.0000000 true eng
title Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
spellingShingle Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
Tim Claypole
Rhodri Williams
Daniel Curtis
title_short Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
title_full Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
title_fullStr Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
title_full_unstemmed Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
title_sort Fourier Transform Controlled Stress Parallel Superposition (FT-CSPS): Validation and application in processing printable functional materials
author_id_str_mv 7735385522f1e68a8775b4f709e91d55
642bf793695f412ed932f1ea4d9bc3f1
e76ff28a23af2fe37099c4e9a24c1e58
author_id_fullname_str_mv 7735385522f1e68a8775b4f709e91d55_***_Tim Claypole
642bf793695f412ed932f1ea4d9bc3f1_***_Rhodri Williams
e76ff28a23af2fe37099c4e9a24c1e58_***_Daniel Curtis
author Tim Claypole
Rhodri Williams
Daniel Curtis
author2 A. J. Holder
J. Claypole
Tim Claypole
P. G. Cooper
Rhodri Williams
Daniel Curtis
format Journal article
container_title Physics of Fluids
container_volume 30
container_issue 7
container_start_page 077105
publishDate 2018
institution Swansea University
issn 1070-6631
1089-7666
doi_str_mv 10.1063/1.5029819
college_str Faculty of Science and Engineering
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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 1
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description In this paper, the development of a multifrequency form of controlled stress parallel superposition rheometry is reported, along with the technique’s validation and use in model gelling systems and high-value particulate suspensions. The novel technique reported herein, termed Fourier transform controlled stress parallel superposition (FT-CSPS), facilitates measurements of the superposition shear moduli and their response to an imposed unidirectional shear stress. FT-CSPS measurements are reported in applications involving (i) the determination of the relaxation properties of incipient gel networks formed in rapidly gelling samples under bulk flow conditions and (ii) measurements of the parallel dynamic moduli of non-gelling samples that experience high rates of solvent loss. By probing the rheological properties of these rapidly evolving materials using a composite waveform comprising multiple harmonic frequencies, sample mutation artefacts (which limit the use of CSPS for such materials) have been minimised. Validation of FT-CSPS has been achieved by (i) showing coincidence of data obtained using CSPS and FT-CSPS for slowly gelling systems and (ii) continuation of the expected relation between gel strength and stress relaxation exponent beyond the range of data accessible to CSPS (limited by sample mutation considerations). This work demonstrates that the rapid acquisition of parallel superposition shear moduli is feasible and facilitates the use of CSPS-based techniques for tests involving rapidly changing materials (such as those undergoing rapid gelation or relatively rapid solvent loss).
published_date 2018-12-31T03:54:40Z
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