2021 Fiscal Year Annual Research Report
Effect of liquid flow on the forces and physical properties of surfaces in liquids
| Project/Area Number |
19K05264
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| Research Institution | Shinshu University |
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Principal Investigator |
マクナミー キャシー 信州大学, 学術研究院繊維学系, 教授 (40504551)
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| Co-Investigator(Kenkyū-buntansha) |
小川 智之 東北大学, 工学研究科, 准教授 (50372305)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | Force experiments / Data analysis / Discussion / Manuscript preparation |
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| Outline of Annual Research Achievements |
We prepared surfaces with a controlled roughness by using silica nanoparticles (NPs). We used these surfaces to determine how the roughness of a surface affects how a liquid flow changes the forces acting between a smooth silica surface and these rough surfaces [preparation of manuscript concerning effect of roughness on the forces]. The effect of a liquid flow and surface roughness on an attractive electrostatic force was also commenced, by using titanium dioxide NPs to form a rough surface. The forces were measured between a negatively charged silica particle and these positively titanium dioxide NPs surfaces, giving an attractive electrostatic force. These results are now being summarized, in order to publish in a manuscript.
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