| Project/Area Number |
18K18600
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 8:Sociology and related fields
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
Takasaki Midori 京都工芸繊維大学, 材料化学系, 准教授 (00402149)
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| Project Period (FY) |
2018-06-29 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | ナノファイバー |
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| Outline of Final Research Achievements |
Poly(ethylene terephthalate)(PET) fiber webs were prepared through the laser-heated electrospinning (LES) and subsequent planar or equi-biaxial stretching process. For both planarly and equi-biaxially stretched web samples, the average fiber diameter decreased with an increase in the stretch ratio.When the stretch ratio exceeded stretch ration of 3 times, nanofiber webs with the average fiber diameter of about 1 um and were obtained.
From the results of WAXD measurement, it was confirmed that crystallization was promoted by applying planarly or biaxial stretching after LES. As a result of the fiber orientation analysis and the tensile test, in the planarly stretched sample, the fibers were oriented in the stretching direction, and the Young's modulus and the tensile strength tended to increase in the direction in which the ratio of the fiber orientation was high.
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| Academic Significance and Societal Importance of the Research Achievements |
本成果から，LES後のウェブについて一軸または二軸伸長と熱処理を施すことにより，ウェブの繊維径，結晶性，結晶配向性，ヤング率等の諸物性を制御することができ，超軽量・高強度ナノテキスタイルのシェルター用衣服への応用化のための指針が得られた．したがって，ナノファイバー材料を利用した新規衣服材料に関する衣服学分野の発展において学術・社会的意義を有する．
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