Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers

Natural nanoclay closite Na+ incorporated melt spun poly(ethylene terephthalate) (PET) fibers were investigated for crystallization kinetics and morphology. Nature of clay dispersion and nanocomposite morphology were assessed using wide angle X-ray diffraction (WAXD) and transmission electron micros...

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Main Authors: R. R. Hegde, G. S. Bhat, B. Deshpande
Format: Article
Language:English
Published: Budapest University of Technology and Economics 2013-10-01
Series:eXPRESS Polymer Letters
Subjects:
Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0004457&mi=cd
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author R. R. Hegde
G. S. Bhat
B. Deshpande
author_facet R. R. Hegde
G. S. Bhat
B. Deshpande
author_sort R. R. Hegde
collection DOAJ
description Natural nanoclay closite Na+ incorporated melt spun poly(ethylene terephthalate) (PET) fibers were investigated for crystallization kinetics and morphology. Nature of clay dispersion and nanocomposite morphology were assessed using wide angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). Fiber mechanical properties were measured using single fiber tensile test. Combination of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) was used to investigate the fiber failure mode. Among nanocomposite PET fibers, sample with 1% clay performed better. WAXD and TEM micrographs of the fibers revealed intercalated and delaminated morphology. Size of agglomerate increased with percentage of add-on. SEM surface images showed significant variation in fiber diameter, voids and imperfections. Cross-sections of fractured surfaces revealed the presence of clay agglomerates at failure spots. Nanoclay reinforcement did not incur mechanical property benefits due to increase in voids and agglomerates in fiber section, especially at loading levels higher than one percent.
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institution Kabale University
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publisher Budapest University of Technology and Economics
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series eXPRESS Polymer Letters
spelling doaj-art-c6d7e981ead349e1a01206ff0a41d6cd2025-08-20T03:57:47ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2013-10-0171082183110.3144/expresspolymlett.2013.79Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibersR. R. HegdeG. S. BhatB. DeshpandeNatural nanoclay closite Na+ incorporated melt spun poly(ethylene terephthalate) (PET) fibers were investigated for crystallization kinetics and morphology. Nature of clay dispersion and nanocomposite morphology were assessed using wide angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). Fiber mechanical properties were measured using single fiber tensile test. Combination of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) was used to investigate the fiber failure mode. Among nanocomposite PET fibers, sample with 1% clay performed better. WAXD and TEM micrographs of the fibers revealed intercalated and delaminated morphology. Size of agglomerate increased with percentage of add-on. SEM surface images showed significant variation in fiber diameter, voids and imperfections. Cross-sections of fractured surfaces revealed the presence of clay agglomerates at failure spots. Nanoclay reinforcement did not incur mechanical property benefits due to increase in voids and agglomerates in fiber section, especially at loading levels higher than one percent.http://www.expresspolymlett.com/letolt.php?file=EPL-0004457&mi=cdPolymer compositesNanocomposite fibersnanoclaypoly (ethylene terephthalate)Crystallization kinetics
spellingShingle R. R. Hegde
G. S. Bhat
B. Deshpande
Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers
eXPRESS Polymer Letters
Polymer composites
Nanocomposite fibers
nanoclay
poly (ethylene terephthalate)
Crystallization kinetics
title Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers
title_full Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers
title_fullStr Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers
title_full_unstemmed Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers
title_short Crystallization kinetics and morphology of melt spun poly(ethylene terephthalate) nanocomposite fibers
title_sort crystallization kinetics and morphology of melt spun poly ethylene terephthalate nanocomposite fibers
topic Polymer composites
Nanocomposite fibers
nanoclay
poly (ethylene terephthalate)
Crystallization kinetics
url http://www.expresspolymlett.com/letolt.php?file=EPL-0004457&mi=cd
work_keys_str_mv AT rrhegde crystallizationkineticsandmorphologyofmeltspunpolyethyleneterephthalatenanocompositefibers
AT gsbhat crystallizationkineticsandmorphologyofmeltspunpolyethyleneterephthalatenanocompositefibers
AT bdeshpande crystallizationkineticsandmorphologyofmeltspunpolyethyleneterephthalatenanocompositefibers