| Project/Area Number |
22KJ2188
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| Project/Area Number (Other) |
22J20426 (2022)
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Multi-year Fund (2023)
Single-year Grants (2022) |
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| Section | 国内 |
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| Review Section |
Basic Section 40020:Wood science-related
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| Research Institution | Osaka University |
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Principal Investigator |
LI CHENYANG 大阪大学, 工学研究科, 特別研究員(DC1)
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| Project Period (FY) |
2023-03-08 – 2025-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2024: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2023: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2022: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | cellulose nanofibers / electrochemistry / circuit protection / electrophoresis / cellulosic materials / electrochemical / migration |
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| Outline of Research at the Start |
Electronics play an important role in our life but many are still prone to failure when contacting water. To solve this reliability issue, this research will focus on exploring a sustainable and factionalized protection method against water-induced short circuit failure by coating bio-based cellulose material on electronics and its application.
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| Outline of Annual Research Achievements |
In the second year of this project, the mechanism of using cellulose nanofiber coatings in prevention against short-circuit failure was clarified. The water drop test revealed that the water absorption and swelling ability of cellulose nanofiber coating layers, along with their zeta potential, are pivotal factors in preventing short-circuit failures of electrode coating materials. Besides, the adhesion and flame resistance of cellulose nanofiber films as copper-electrode sealing layers for safe, high-performance electronics were assessed. In addition to using cellulose nanofibers’ electrophoretic properties for short-circuit prevention, we investigated fundamental aspects of their deposition behavior this year. Our focus included the chemical and structural characteristics of electrophoretically deposited cellulose hydrogels, as well as the process of preparing transparent films from these gels.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Following the research plan, this year we focused on conducting research to evaluate the electrochemical inhibition performance of selected cellulosic materials and conducting practical functional tests as coating layers for electronic devices. The research outcomes exceeded expectations, and the findings have been summarized for conference presentations and journal submissions. Therefore, this project is generally progressing well.
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| Strategy for Future Research Activity |
For the next year, we will investigate a deeper understanding of the electrophoretic deposition behavior of cellulosic materials. Additionally, we will explore applications related to the electrophoretic properties of these materials.
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