Journal
POLYMER
Volume 45, Issue 3, Pages 919-926Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2003.11.037
Keywords
PET nanocomposite fibers; in situ interlayer polymerization; organoclay
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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.
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