| Presentation | 2020-01-22 [Poster Presentation] Impacts of surfactant addition on microcapsule destruction and cavitation bubble size Ayaka Inui, Yui Aramachi, Atsushi Honda, Ken Yamamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In our past study, we reported that ultrasonic destruction of microcapsules was caused by cavitation bubbles. The size of cavitation bubbles under ultrasound varies from those smaller than the resonance size that causes Rayleigh contraction to those larger than the resonance size that does not participate in the sonochemical reaction. In addition, the activity around and inside the bubble (shear stress, shock wave, microjet, sonochemical reaction, sonoluminescence, etc.) varies greatly depending on the size of the bubble. In this study, we investigated the effects of surfactant addition on ultrasonic destruction of capsules and cavitation bubbles. In addition, as one means of evaluating cavitation bubbles that contribute to destruction, sonoluminescence (SL) intensity was also measured. SL is a light emission phenomenon observed when bubbles smaller than the resonance diameter. This phenomenon is caused by cavitation bubbles which collapses at high temperature and high pressure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cavitation bubbles / Microcapsuleｓ / Surfactants / Sonoluminescence(SL) |
| Paper # | US2019-70,EA2019-83 |
| Date of Issue | 2020-01-15 (US, EA) |
| Conference Information | |
| Committee | EA / US |
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| Conference Date | 2020/1/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, and Related Topics |
| Chair | Kenichi Furuya(Oita Univ.) / Jun Kondo(Shizuoka Univ.) |
| Vice Chair | Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.) |
| Secretary | Suehiro Shimauchi(NHK) / Shigeto Takeoka(Univ. of Tokyo) / Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Mototaka Arakawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Impacts of surfactant addition on microcapsule destruction and cavitation bubble size |
| Sub Title (in English) | |
| Keyword(1) | Cavitation bubbles |
| Keyword(2) | Microcapsuleｓ |
| Keyword(3) | Surfactants |
| Keyword(4) | Sonoluminescence(SL) |
| 1st Author's Name | Ayaka Inui |
| 1st Author's Affiliation | Kansai University(Kansai Univ.) |
| 2nd Author's Name | Yui Aramachi |
| 2nd Author's Affiliation | Kansai University(Kansai Univ.) |
| 3rd Author's Name | Atsushi Honda |
| 3rd Author's Affiliation | Kansai University(Kansai Univ.) |
| 4th Author's Name | Ken Yamamoto |
| 4th Author's Affiliation | Kansai University(Kansai Univ.) |
| Date | 2020-01-22 |
| Paper # | US2019-70,EA2019-83 |
| Volume (vol) | vol.119 |
| Number (no) | US-374,EA-375 |
| Page | pp.pp.1-5(US), pp.1-5(EA), |
| #Pages | 5 |
| Date of Issue | 2020-01-15 (US, EA) |