Preparation, crystallization, and spinnability of poly(ethylene terephthalate)/silica nanocomposites

Poly(ethylene terephthalate) (PET)/silica nanocomposites were successfully prepared by in situ polymerization. Silica nanoparticles were uniformly dispersed in the process of polymerization. By means of hot‐stage polarization microscope and DSC, the influence of nanosilica on the crystallization of...

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Veröffentlicht in:	Journal of applied polymer science 2007-02, Vol.103 (4), p.2564-2568
Hauptverfasser:	Zheng, Hao, Wu, Jialin
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Composites crystallization Exact sciences and technology Fibers and threads Forms of application and semi-finished materials nanosilica PET Polymer industry, paints, wood spinnability Technology of polymers
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Beschreibung
Zusammenfassung:	Poly(ethylene terephthalate) (PET)/silica nanocomposites were successfully prepared by in situ polymerization. Silica nanoparticles were uniformly dispersed in the process of polymerization. By means of hot‐stage polarization microscope and DSC, the influence of nanosilica on the crystallization of PET/silica nanocomposites has been clarified. The results show that nanosilica does not behave as a nucleating agent in PET but postpones the appearance of crystallite. This phenomenon is very favor to improve spinnability. The investigation on melt spinning of PET/silica nanocomposites also shows that it is advantageous to spinning with descending the spinning temperature. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 2564–2568, 2007
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.25132