| Project/Area Number |
23KF0200
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Multi-year Fund |
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| Section | 外国 |
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| Review Section |
Basic Section 21010:Power engineering-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
熊田 亜紀子 東京大学, 大学院工学系研究科(工学部), 教授 (20313009)
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| Co-Investigator(Kenkyū-buntansha) |
RUAN HAOOU 東京大学, 大学院工学系研究科(工学部), 外国人特別研究員
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| Project Period (FY) |
2023-11-15 – 2026-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2025: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2024: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2023: ¥300,000 (Direct Cost: ¥300,000)
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| Keywords | Interface modification / Composite materials / Defect Analysis / Material Simulation |
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| Outline of Research at the Start |
エポキシ／アラミドの複合材料において，アラミドのフッ素化表面処理が絶縁性能に与える効果を明らかにし，高耐圧材料を得る。23年には，量子化学計算や分子動力学計算を用いた界面モデリングを行う。24年には材料試作と実験的評価を行い，シミュレーションの妥当性を確認する。25年は，シミュレーション技術と材料作製プロセスを組み合わせ，最適なフッ素化処理条件の見極めを行う。
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| Outline of Annual Research Achievements |
1.Molecular modeling using molecular dynamics was used to study the interfaces of aramid composites, focusing on how grafting functional groups affects stability. The research analyzed interface energy, hydrogen bonds, and molecular movement, highlighting the contributions of various functional groups to interface properties, which informed experimental designs.
2.The surface treatment of aramid was explored through simulations and experiments, using the ReaxFF force field for modeling aramid surface reactions with O radicals and examining the effects of radical kinetic energy on reaction speed. The study also used ultraviolet photolysis and contact angle measurements to assess surface activation by radicals, with XPS and FTIR analyses of reaction outcomes.
3.The study focused on how interface defects in aramid composites affect their structural, mechanical, and insulation properties, using experimental tests and simulations to understand the impact of defects on electric field distortion and thermal accumulation.
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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
The research is currently moving towards integrating simulations with practical experiments. The foundational modeling and interface performance calculations have been finalized. We are now engaged in choosing relevant schemes and conducting preliminary experimental verifications. Due to the constraints of simulation technology, experiments remain our primary approach for unraveling the impact of parameters, and for identifying optimal modification strategies and compositions for composite materials. Efforts to acquire equipment and materials needed for preparing these experiments are underway, alongside the development of a platform for preparing aramid or other kinds of polymer-based composite materials.
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| Strategy for Future Research Activity |
(1)Surface Treatment and Functionalization: We aim to explore surface treatments and develop interfaces with enhanced functionality for composite materials.
(2)Characterization and Analysis: We plan to understand the impact of various functional groups on interface modification through combined microscopic, mechanical, and electrical analyses.
(3)Performance Testing and Optimization: Our goal is to conduct performance tests on modified composites and identify optimal modification parameters.
(4)Structure-Property Relationship Summary: We intend to clarify the relationship between interface components and composite material performance, developing interface design strategies for the synthesis of advanced multiphase composite materials.
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