2022 Fiscal Year Annual Research Report
Protection Against Water-Induced Short-Circuit Failures of Electronics with Cellulosic Polymer Coating and Its Practical Applications
| Project/Area Number |
22J20426
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| Allocation Type | Single-year Grants |
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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) |
2022-04-22 – 2025-03-31
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| Keywords | cellulosic materials / cellulose nanofibers / electrochemical / migration / circuit protection |
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| Outline of Annual Research Achievements |
In the first year of this project, four different cellulose nanofibers were selected to be coated onto copper electrodes in order to test their ability to suppress electrochemical migration inhibition in water. The inhibition process was carefully observed, and the resulting hydrogel was evaluated. The outcomes indicated that coating electrodes with cellulose nanofibers can extend the inhibition time significantly. Furthermore, the correlation between inhibition performance and the formation of hydrogels was investigated. The good reversibility and conductivity of the coated cellulose nanofiber layers have been proven beneficial in preventing the short circuit of electrodes. These results contribute to a better understanding towards the use of cellulose nanofiber coating for protecting electronics against corrosion.
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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 the properties involved during the inhibition process. The research outcomes were better than expected, and the findings have been summarized for future conference presentation and journal submission. Therefore, this project is generally progressing well.
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| Strategy for Future Research Activity |
For next year, the deeper mechanisms of electrochemical migration inhibition by cellulosic material coating will be clarified. Moreover, applications related to the electrochemical properties of cellulosic materials will be conducted.
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