Poly(ethylene terephthalate) nanocomposites by in situ interlayer polymerization: the thermo-mechanical properties and morphology of the hybrid fibers

被引:176
|
作者
Chang, JH [1 ]
Kim, SJ
Joo, YL
Im, S
机构
[1] Kumoh Natl Univ Technol, Dept Polymer Sci & Engn, Kumi 730701, South Korea
[2] Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA
[3] Hanyang Univ, Dept Fiber & Polymer Engn, Seoul 133791, South Korea
关键词
PET nanocomposite fibers; in situ interlayer polymerization; organoclay;
D O I
10.1016/j.polymer.2003.11.037
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Nanocomposites of poly(ethylene terephthalate) (PET) with C12PPh-MMT as an organoclay were synthesized by using the in situ interlayer polymerization approach. The PET nanocomposites were melt-spun at different organoclay contents and different draw ratios to produce monofilaments. The thermo-mechanical properties and the morphologies of the PET nanocomposites were examined by using a differential scanning calorimeter, a thermogravimetric analyzer, a wide angle X-ray diffactometer, scanning and transmission electron microscopes, and a universal tensile machine. Some of the clay particles were well dispersed in the PET matrix, and some of them were agglomerated at a size level of greater than approximately 10 run. The thermal stability and the tensile mechanical properties of the PET hybrid fibers increased with increasing clay content at a DR = 1. However, the values of the ultimate tensile strength and the initial modulus of the hybrid fibers decreased markedly with increasing DR from 1 to 16. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:919 / 926
页数:8
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