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| Presentation | 2018-01-24 10:55 Measurement of dynamic interfacial tension by shape analysis of flying droplets Natsuki Yamaoka, Ryohsuke Yokota, Ryo Asai, Taichi Hirano, Shujiro Mitani, Keiji Sakai (UTokyo)  US2017-104 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We developed a method for simultaneous measurement of dynamic surface and interfacial tension in the time range from hundreds of microseconds to a few milliseconds. When two immiscible liquid droplets collide in midair, the equilibrium droplet shape after collision is determined by the balance of surface and interfacial tension and the volume of each droplet before collision. In particular, two droplets showing incomplete wetting will make an anisotropic shape, Daruma-shape, in which one droplet with higher surface tension covers the other droplet. In our method, microdroplets emitted by continuous inkjet system are obliquely collided, and by shape analysis of incompletely-wetting Daruma-shape flying droplets, the surface and interfacial tension which changes temporally as progress of surfactant adsorption can be observed. In this work, the measurements of dynamic surface and interfacial tension of surfactant (SDS, Tween 20, SDBS) aqueous solutions and hexadecane were successfully carried out. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Dynamic Interfacial Tension / Dynamic Surface Tension / Inkjet / Surfactant / Hexadecane / Shape Analysis / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 398, US2017-104, pp. 119-123, Jan. 2018. | |
| Paper # | US2017-104 | |
| Date of Issue | 2018-01-16 (US) | |
| ISSN | Print edition: ISSN 0913-5685 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) | |
| Download PDF | US2017-104 |
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| Conference Information | |
| Committee | US EA |
| Conference Date | 2018-01-23 - 2018-01-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2018-01-US-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of dynamic interfacial tension by shape analysis of flying droplets |
| Sub Title (in English) | |
| Keyword(1) | Dynamic Interfacial Tension |
| Keyword(2) | Dynamic Surface Tension |
| Keyword(3) | Inkjet |
| Keyword(4) | Surfactant |
| Keyword(5) | Hexadecane |
| Keyword(6) | Shape Analysis |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Natsuki Yamaoka |
| 1st Author's Affiliation | Institute of Industrial Science, The University of Tokyo (UTokyo) |
| 2nd Author's Name | Ryohsuke Yokota |
| 2nd Author's Affiliation | Institute of Industrial Science, The University of Tokyo (UTokyo) |
| 3rd Author's Name | Ryo Asai |
| 3rd Author's Affiliation | Institute of Industrial Science, The University of Tokyo (UTokyo) |
| 4th Author's Name | Taichi Hirano |
| 4th Author's Affiliation | Institute of Industrial Science, The University of Tokyo (UTokyo) |
| 5th Author's Name | Shujiro Mitani |
| 5th Author's Affiliation | Institute of Industrial Science, The University of Tokyo (UTokyo) |
| 6th Author's Name | Keiji Sakai |
| 6th Author's Affiliation | Institute of Industrial Science, The University of Tokyo (UTokyo) |
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| Speaker | Author-1 |
| Date Time | 2018-01-24 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2017-104 |
| Volume (vol) | vol.117 |
| Number (no) | no.398 |
| Page | pp.119-123 |
| #Pages | 5 |
| Date of Issue | 2018-01-16 (US) |
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