Morphology Control and Performance of Crystalline Polymers by drawing under Supercritical Fluids
| Project/Area Number |
20350101
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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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 Tokyo University of Agriculture and Technology, 大学院・工学研究院, 教授 (90196006)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2010: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2009: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2008: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
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| Keywords | 高分子結晶 / ポリプロピレン / ポリフッ化ビニリデン / ポリカーボネート / 超臨界二酸化炭素 / 延伸 / 小角X線散乱 / 結晶化 / 融解 / 応力-歪み挙動 / 結晶高次構造 / ナノ空孔 / ポリエチレン / 力学挙動 / 結晶 / 空孔 |
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| Research Abstract |
We designed a tensile testing system in which we can measure the stress-strain behavior of polymer films under supercritical fluids. The crystalline polymers were plasticized and the drawability was improved under supercritical CO_2. Polymer materials with various properties could be obtained by drawing under CO_2 at various temperatures and CO_2 pressures. Crystallinity and melting temperature of polypropylene were increased by drawing at high temperature under supercritical CO_2, while nano-ordered voids were formed and the density decreased by drawing at low temperature under CO_2. The progress of the characteristic morphologies thus obtained was discussed by the results of small-angle x-ray scattering and electron microscope.
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Report
(4 results)
Research Products
(116 results)
