2010 Fiscal Year Final Research Report
Improvement of hydrophilic nature of polyester fabrics by atmospheric pressure plasma exposure
| Project/Area Number |
20300236
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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 |
General human life sciences
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| Research Institution | Kyoto University of Education |
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Principal Investigator |
GOTOH Keiko Kyoto University of Education, 生活環境学部, 教授 (30243356)
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| Co-Investigator(Kenkyū-buntansha) |
TANIGUCHI Kazunari 京都教育大学, 教育学部, 准教授 (90319377)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 大気圧プラズマ / ポリエチレンテレフタレート / 接触角 / ぬれ性 / 表面自由エネルギー / 吸水性 / 洗浄性 / 染色性 |
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| Research Abstract |
To enhance hydrophilic nature of polyester surfaces, atmospheric pressure plasma (APP) treatment with three gas sources, Air, nitrogen and argon, was carried out. The contact angles on the poly (ethylene terephthalate), PET, films and fibers untreated and treated by the APP was determined by the Wilhelmy method. As a result, the wettability and the surface free energy were found to increase drastically after the APP exposure. The water wicking, detergency and dyeability of the PET fabric were successfully enhanced after the APP exposure. X-ray photoelectron spectroscopy and atomic force microscopy of the PET fiber showed that the improvement of the practical performances of the PET fabric was caused by the surface oxidation and the surface topographical change. The APP exposure, especially with nitrogen gas, was found to be more effective compared with other dry process such as UV treatment.
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