| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2016-12-02 |
| タイトル |
|
|
タイトル |
Structure and Mechanical Properties of Poly(trimethylene terephthalate) Fibers Obtained by CO2 Laser Drawing and a Secondary Contact Heater Drawing |
| 言語 |
|
|
言語 |
eng |
| DOI |
|
|
|
関連識別子 |
https://doi.org/10.2115/fiber.69.107 |
|
|
関連名称 |
10.2115/fiber.69.107 |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 著者 |
Kang, Young-Ah
Kim, Kyoung-Hou
Zhao, Xin
Lee, Yang Hun
Ikaga, Toshifumi
Ohkoshi, Yutaka
|
| 信州大学研究者総覧へのリンク |
|
|
氏名 |
Ohkoshi, Yutaka |
|
URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.jUkejekV.html |
| 出版者 |
|
|
出版者 |
SOC FIBER SCIENCE TECHNOLOGY |
| 引用 |
|
|
内容記述 |
SEN-I GAKKAISHI. 69(6):107-117 (2013) |
| 書誌情報 |
SEN-I GAKKAISHI
巻 69,
号 6,
p. 107-117,
発行日 2013-06
|
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
1 |
| 抄録 |
|
|
内容記述 |
CO2 laser drawing heats a running fiber homogeneously and rapidly without contact by laser irradiation and develops a necking in a fixed location. As-spun fibers of bio- and chemo-based poly(trimethylene terephthalate) (PTT) were drawn to draw ratio (DR) of 3.5-5.5 and 3.5-4.8 by CO2 laser-heated drawing, respectively, which was taken as the first drawing. Secondarily the first-drawn fibers were drawn to total draw ratio (TDR) as high as possible by direct contact heater drawing of 150 degrees C, which attained TDR 5.60-5.70 and 5.40-5.46 for bio- and chemo-based PTT fibers, respectively. Drawing stress in situ measured in the two-steps drawing increased roughly proportional to draw ratio, and for bio-based PTT was higher than for chemo-based one when compared at the same DR and TDR. We investigated in this study the structure and mechanical properties of the drawn PTT fibers by wide angle X-ray diffraction (WAX])), birefringence, thermo-mechanical property, and tensile property. The typical WAXD pattern of PTT crystal was observed with orientation-induced crystallization by the two-steps drawing. But, the meridional reflections become blurred and their intensities decrease with increasing draw ratio and by the second drawing. The transverse crystallite sizes, along the normal direction of (010) plane, increased transversely but the longitudinal sizes, along the normal direction of (002) plane decreased longitudinally as draw ratio increased for chemo-based PTT, whereas for bio-based PTT, the crystallite size change with draw ratio was the same trend with the chemo-based by the first drawing but the crystallite became much smaller transversely and longitudinally by the second drawing. By the azimuthal intensity profile, the crystal orientation factor obtained from (010) plane increased, while that from (002) plane decreased with the total draw ratio. The birefringence was a constant value 0.07 with no dependence on draw ratio by two steps drawing, which is over twice a reported intrinsic birefringence of PTT crystal, 0.029 [12]. Also, Young's modulus held an almost constant value of 2.3-2.6 GPa by the two stages drawing, which is very closed to 2.59 GPa, the theoretical modulus of PTT crystal. |
| 資源タイプ（コンテンツの種類） |
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0037-9875 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00131651 |
| 権利 |
|
|
権利情報 |
Copyright © 2013 The Society of Fiber Science and Technology, Japan |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| WoS |
|
|
URL |
http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000323466000011 |
Structure_Mechanical_Properties_Poly_trimethylene_terephthalate.pdf (2.8 MB)
