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| Presentation | 2011-07-28 15:10 [Invited Talk] Molecular Dynamics Study of the Effects of Surface Polarization on Wetting and Local Viscosity of Water Droplet on a Solid Yasutaka Yamaguchi, Donatas Surblys, Satoshi Nakaoka (Osaka Univ.), Koji Kuroda, Tadashi Nakajima, Hideo Fujimura (Dai-Nippon Printing)  US2011-30 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Molecular dynamics simulations of single water or water-IPA (Isopropyl-alcohol) mixture droplets on a solid surface were performed. The interaction for solid-water molecules was modeled as the combination of L-J and Coulomb potentials, and the effects of Coulomb interaction were independently investigated by appending arbitrary electric polarization as a parameter on the solid surface. The water droplet became more wettable with both upward and downward surface polarizations, and the cosine of the contact angle was roughly a linear function of the absolute value of surface dipole although the correlation was obviously different depending on the polarization direction. The mean rotational diffusion coefficient was higher near the adsorption layer on downward polarized surface while it was reduced in the vicinity of upward polarized surface. For water-IPA mixture droplet, the increase of contact angle was not linear to the IPA fraction because of the complex effects of IPA addition on vapor-liquid, solid-liquid, and three-phase interfaces. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Molecular Dynamics / Microscale Droplet / Water / Wettability / Rotational Diffusion / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 158, US2011-30, pp. 43-48, July 2011. | |
| Paper # | US2011-30 | |
| Date of Issue | 2011-07-21 (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 | US2011-30 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2011-07-28 - 2011-07-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Electronics Manufacturing Co., Ltd. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Material Proparty, General |
| Paper Information | |
| Registration To | US |
| Conference Code | 2011-07-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Molecular Dynamics Study of the Effects of Surface Polarization on Wetting and Local Viscosity of Water Droplet on a Solid |
| Sub Title (in English) | |
| Keyword(1) | Molecular Dynamics |
| Keyword(2) | Microscale Droplet |
| Keyword(3) | Water |
| Keyword(4) | Wettability |
| Keyword(5) | Rotational Diffusion |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasutaka Yamaguchi |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Donatas Surblys |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Satoshi Nakaoka |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
| 4th Author's Name | Koji Kuroda |
| 4th Author's Affiliation | Dai-Nippon Printing Co. Ltd. (Dai-Nippon Printing) |
| 5th Author's Name | Tadashi Nakajima |
| 5th Author's Affiliation | Dai-Nippon Printing Co. Ltd. (Dai-Nippon Printing) |
| 6th Author's Name | Hideo Fujimura |
| 6th Author's Affiliation | Dai-Nippon Printing Co. Ltd. (Dai-Nippon Printing) |
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| Speaker | Author-1 |
| Date Time | 2011-07-28 15:10:00 |
| Presentation Time | 60 minutes |
| Registration for | US |
| Paper # | US2011-30 |
| Volume (vol) | vol.111 |
| Number (no) | no.158 |
| Page | pp.43-48 |
| #Pages | 6 |
| Date of Issue | 2011-07-21 (US) |
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