2016 Fiscal Year Final Research Report
Experimental development of functional material with orderly string-like micro structures of carbon nanotubes
| Project/Area Number |
26630008
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Niigata University |
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Principal Investigator |
|
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| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | カーボンナノチューブ / ヘリカルバンド / 流動誘起構造 / 機能性材料 / 複雑流体 / 構造制御 / 導電異方性 |
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| Outline of Final Research Achievements |
We have developed new methods to control the flow induced orderly string-like structures (Helical Band; HB) in carbon nanotube (CNT) dispersions under alternating simple shear flows applied. Moreover, functional materials with the HB structures were experimentally produced and the properties and effectivities of the materials were examined. In particular, it was clarified that the anisotropic conductivity of the material was controlled with the viscosity of carrier liquids, volume fraction of the CNT or multistep shear application. Higher anisotropic properties in electric conductivity was obtained when the low shear rate flow was applied after high shear rate pre-flow.
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| Free Research Field |
工学，流体工学，レオロジー
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