| Project/Area Number |
16H04266
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
吉武 裕美子 長岡技術科学大学, 工学研究科, 助教 (80453794)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
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| Keywords | 複雑流体 / 塗布 / 流動配向 / 薄膜 / 分子配向膜 / 乾燥 / 反射率 / 液晶性色素 / 懸濁液 / 流体工学 / 可視化 / 非ニュートン流 / 配向膜 |
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| Outline of Final Research Achievements |
The aim of this research is the development of the technology to form the particles or molecules oriented thin film by applying a dispersion liquid on a flat plate. The techniques to evaluate the basic rheological properties and the orientation conditions of the particles are developed. The planar elongation viscosity, which is important in the applying and coating processes, and the relationship between the particle orientation and viscosity were successfully evaluated by the new methods. The high-speed surface ellipsometry technique was also developed to evaluate the transient behavior of the particle orientation during drying. The two-dimensional distribution of the density of the wet thin film during drying was also evaluated by a new method. Therefore, the fundamental knowledge of orientation thin film by application process was found.
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| Academic Significance and Societal Importance of the Research Achievements |
偏光膜や色素型太陽電池，二次電池では，各種機能を有する微粒子を分散させた塗料やスラリーの塗布・乾燥により形成された機能性薄膜が利用されている．特に棒状や円板状など形状異方性を有する粒子・分子は配向することで光学異方性や誘電異方性など付加価値の高い機能を発現する．しかし，これらの粒子・分子の塗布や液膜の乾燥過程における粒子配向状態の過渡的な変化についての計測技術や知見はほとんどない．本研究ではこれら流体の塗布に関係する物性評価技術や，乾燥過程の濃度の時間的変化などを定量的に求める技術を提案しており，経験に頼る製造現場において関連する製品の高機能化に大きく貢献すると期待される．
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