2011 Fiscal Year Final Research Report
Multiscale studies on adhesion phenomena in polymers
| Project/Area Number |
20244067
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
DOI Masao 東京大学, 大学院・工学系研究科, 教授 (70087104)
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| Co-Investigator(Kenkyū-buntansha) |
MORITA Hiroshi 独立行政法人産業技術総合研究所, ナノテクノロジー研究部門, 主任研究員 (10466790)
SUMINO Yutaka 愛知教育大学, 教育学部, 助教 (00518384)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMAGUCHI Tetsuo 九州大学, 大学院・工学研究院, 学術研究員(特任准教授) (20466783)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 高分子界面 / 粘着 / 剥離 / スティック / スリップ運動 / 接触線運動 / 地震現象 |
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| Research Abstract |
Soft polymeric rubbers often adhere to solid surfaces strongly as in the case of pressure sensitive adhesives. When such materials are debonded from the surface, various meso-scale structures(having the scale of order of um) such as cavities and fibrils appear nearby the contact line(the outer rim of the contact region). We have studied such meso-scale structure in the debonding of adhesives from sold substrate, and in the sliding of adhesive rubber on solid substrate, and clarified the relation between the mesoscale structure and the macroscopic mechanical responses. Especially, we have obtained a model for the dynamics of the contact line of adhesive rubber. We have also psoposed a way of obtaining the strain distribution built up in the rubber sliding over a substrate, and discussed the relation to the occurance of eathquakes.
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