2014 Fiscal Year Final Research Report
Dynamic mechanical properties and elongation of polymers under supercritical fluids
| Project/Area Number |
24550246
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
SAITO Hiromu 東京農工大学, 工学(系)研究科(研究院), 教授 (90196006)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 超臨界二酸化炭素 / 配向 / 結晶化 / 相分離 / ポリプロピレン / ポリフッ化ビニリデン / 小角X線散乱 |
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| Outline of Final Research Achievements |
We constructed the stretching instrument for the in-situ tensile-deformation measurements of polymer films under pressurized CO2. The stress decreased and large strain recovery was observed when poly(vinylidene fluoride) film was elongated under supercritical CO2, while the stress increased due to the extraction of water in the specimen when the gas barrier film was elongated under CO2. The band-like structure was observed due to the shear-induced phase separation by orientation crystallization of polypropylene under CO2 while fibrillar structure was obtained under air at ambient pressure.
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| Free Research Field |
高分子物性
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