2023 Fiscal Year Final Research Report
Development of low-friction soft polymer materials with regeneration and restoration functions
Project/Area Number |
20H02060
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 18040:Machine elements and tribology-related
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Research Institution | Okinawa National College of Technology (2022-2023) Tsuruoka National College of Technology (2020-2021) |
Principal Investigator |
SATO TAKAYA 沖縄工業高等専門学校, その他部局等, 校長 (30399258)
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Co-Investigator(Kenkyū-buntansha) |
上條 利夫 鶴岡工業高等専門学校, その他部局等, 教授 (00588337)
荒船 博之 鶴岡工業高等専門学校, その他部局等, 准教授 (90707811)
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Project Period (FY) |
2020-04-01 – 2024-03-31
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Keywords | ポリマーブラシ / ゲル / イオン液体 / アニオン重合 / リビングラジカル重合 / 自己修復 / トライボロジー / 低摩擦 |
Outline of Final Research Achievements |
In this research, we developed a soft material with low-friction that have the regeneration and self-repair functions. The low-friction sliding system including our material could not require replacement of the friction surface. Synthesize ABA type tri-block polymer using living anion polymerization technology,We have established a technology that utilizes the difference in hydrophilic and hydrophobic properties to form a loop-shaped brush from within the base material. We found that this surface functions as a low friction sliding system on the order of 10^-3. In parallel, we established conditions for synthesizing ion gel thin films with slide ring crosslinks.It was confirmed that the synthesized polymer brush and gel function as low-friction materials with regeneration and repair functions.
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Free Research Field |
高分子材料化学
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Academic Significance and Societal Importance of the Research Achievements |
従来の金属材料やダイヤモンドライクカーボンなどのハード材料における接触面積低減による摩擦低減に対し、ポリマーブラシやゲルなどの柔らかいソフト材料は相手材の凹凸にソフト変形し相手面を侵襲することなく低摩擦を保持できることを示した。これらの材料は自己修復機能をも有するので、特に交換に多大なコストがかかる宇宙空間やマイクロデバイスシステムの摩擦材料として大きなメリットがある。
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