Effect of melt spinning conditions on the fiber structure development of polyethylene terephthalate

被引：30

作者：

Tomisawa, R. ^{[1
]}

Ikaga, T. ^{[1
]}

Kim, K. H. ^{[1
]}

Ohkoshi, Y. ^{[1
,2
]}

Okada, K. ^{[3
]}

Masunaga, H. ^{[4
]}

Kanaya, T. ^{[5
]}

Masuda, M. ^{[6
]}

Maeda, Y. ^{[6
]}

机构：

[1] Shinshu Univ, Fac Text Sci & Technol, 3-15-1 Tokida, Ueda, Nagano 3868567, Japan

[2] Shinshu Univ, Inst Fiber Engn, Tokida 3-15-1, Ueda, Nagano 3868567, Japan

[3] Toray Res Ctr Ltd, Mat Sci Labs, 3-3-7 Sonoyama, Otsu, Shiga 5208567, Japan

[4] Japan Synchrotron Radiat Res Inst, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan

[5] High Energy Accelerator Res Org, 203-1 Shirakata, Tokai, Ibaraki 3191106, Japan

[6] Toray Industries Ltd, Mishima, Shizuoka 4118652, Japan

来源：

POLYMER | 2017年 / 116卷

关键词：

Polyethylene terephthalate; X-ray diffraction; X-ray scattering; Smectic phase; Fiber; Strength; HEATED DRAWING PROCESS; POLY(BUTYLENE TEREPHTHALATE); ISOTACTIC POLYPROPYLENE; MECHANICAL-PROPERTIES; IN-SITU; POLY(ETHYLENE-TEREPHTHALATE); CRYSTALLIZATION; TRANSITION; MESOPHASE; RADIATION;

D O I：

10.1016/j.polymer.2016.12.077

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effects of spinning conditions on fiber properties are not well explained by the fiber structures because the birefringence, crystallinity, and SAXS patterns are often similar. In this study, the effects on the fiber structure development of polyethylene terephthalate after necking was analyzed by simultaneous WAXD/SAXS measurements. An X-shaped SAXS pattern was observed for all fibers drawn at the minimum draw ratio. In contrast, by drawing under a drawing stress of 100 MPa, the strong diffraction of the smectic phase and an obviously larger long period less than 1 ms after necking were observed for fibers spun at 500-1500 m/min, while almost no smectic phase was observed for fibers spun at 2000 m/min. A higher crystallization rate and clear draw ratio dependence of crystallization rate were also observed for the fiber spun at 2000 m/min. The clear differences in structure development can explain their differences in tensile strength and thermal shrinkage. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：367 / 377

页数：11

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