Paper Abstract and Keywords |
Presentation |
2021-07-30 16:50
Creep recovery measurement for fragile viscoelastic fluids using electromagnetically spinning rheometry system Taichi Hirano (Meiji Univ.), Yoshikazu Yamakawa (TE), Keiji Sakai (UTokyo) US2021-25 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The Electro-Magnetically Spinning (EMS) method is an innovative and unique technique for measuring viscosity and elasticity of fluids. Lately, an advanced rheometry system using the EMS method was developed to evaluate strictly flow curves and viscosity curves, which can lead to a spectroscopic study. As for viscoelastic properties, however, no quantitative results were reported yet. Then, we conducted the creep and recovery measurements for a viscoelastic fluid, which apparently shows fragile network structures. In the stage of applying torque, the magnitude of torque was increased gradually, so that an elastic behavior was not clearly observed. On the other hand, when the torque was released instantaneously, a reverse rotation due to elasticity was observed. The reverse motion was found to be an exponential behavior showing a characteristic viscoelastic relaxation. In this report, we introduce the measurement results of viscoelastic properties from these creep and recovery tests, and also discuss the difference with previous experimental results for similar fluids. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
EMS method / viscoelastic fluid / creep recovery measurement / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 131, US2021-25, pp. 36-39, July 2021. |
Paper # |
US2021-25 |
Date of Issue |
2021-07-23 (US) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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US2021-25 |
Conference Information |
Committee |
US |
Conference Date |
2021-07-30 - 2021-07-30 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
US |
Conference Code |
2021-07-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Creep recovery measurement for fragile viscoelastic fluids using electromagnetically spinning rheometry system |
Sub Title (in English) |
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EMS method |
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viscoelastic fluid |
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creep recovery measurement |
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1st Author's Name |
Taichi Hirano |
1st Author's Affiliation |
Meiji University (Meiji Univ.) |
2nd Author's Name |
Yoshikazu Yamakawa |
2nd Author's Affiliation |
Triple Eye (TE) |
3rd Author's Name |
Keiji Sakai |
3rd Author's Affiliation |
University of Tokyo (UTokyo) |
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Speaker |
Author-1 |
Date Time |
2021-07-30 16:50:00 |
Presentation Time |
25 minutes |
Registration for |
US |
Paper # |
US2021-25 |
Volume (vol) |
vol.121 |
Number (no) |
no.131 |
Page |
pp.36-39 |
#Pages |
4 |
Date of Issue |
2021-07-23 (US) |
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