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Article: Study of poly(ethylene terephthalate)/polypropylene microfibrillar composites. I. Morphological development in melt extrusion

TitleStudy of poly(ethylene terephthalate)/polypropylene microfibrillar composites. I. Morphological development in melt extrusion
Authors
KeywordsComposites
Melt Extrusion
Morphology
Issue Date2003
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-8995/
Citation
Journal Of Applied Polymer Science, 2003, v. 89 n. 7, p. 1743-1752 How to Cite?
AbstractPoly(ethylene terephthalate)/polypropylene (PET/PP) blends of different compositions were extruded through a 2-mm capillary die using a corotating twin-screw extruder. The extrudates were cryogenically fractured and examined using scanning electron microscopy. The viscosity ratio of the constituent polymers alone was found to be unsuitable for explaining the polymer blend morphology. At a PET concentration of 20%, the extrudate consists of three regions. The skin layer, which is about 10 μm thick, has a lower concentration of the dispersed PET phase than the overall concentration. The intermediate region, which is about 400 μm thick, has profuse PET fibers and some small PET particles. The central region, which is approximately 800 μm in diameter, mainly contains PET particles that are generally bigger. A low barrel temperature, low die temperature, and fast cooling rate helped to retain the fibers near the extrudate skin. Meanwhile, the variation of the barrel temperature, die temperature, and cooling media did not produce a significant affect on the PET particle size distribution in the central region of the extrudate. A high screw speed and a high postextrusion drawing speed were very effective in producing fibers in the extrudates through elongation of particles. At a PET concentration of 30%, coalescence of the PET phase was prevalent, leading to the formation of PET platelets near the extrudate skin and irregular PET networks in the central region of the extrudate.
Persistent Identifierhttp://hdl.handle.net/10722/156665
ISSN
2015 Impact Factor: 1.866
2015 SCImago Journal Rankings: 0.578
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLin, XDen_US
dc.contributor.authorCheung, WLen_US
dc.date.accessioned2012-08-08T08:43:26Z-
dc.date.available2012-08-08T08:43:26Z-
dc.date.issued2003en_US
dc.identifier.citationJournal Of Applied Polymer Science, 2003, v. 89 n. 7, p. 1743-1752en_US
dc.identifier.issn0021-8995en_US
dc.identifier.urihttp://hdl.handle.net/10722/156665-
dc.description.abstractPoly(ethylene terephthalate)/polypropylene (PET/PP) blends of different compositions were extruded through a 2-mm capillary die using a corotating twin-screw extruder. The extrudates were cryogenically fractured and examined using scanning electron microscopy. The viscosity ratio of the constituent polymers alone was found to be unsuitable for explaining the polymer blend morphology. At a PET concentration of 20%, the extrudate consists of three regions. The skin layer, which is about 10 μm thick, has a lower concentration of the dispersed PET phase than the overall concentration. The intermediate region, which is about 400 μm thick, has profuse PET fibers and some small PET particles. The central region, which is approximately 800 μm in diameter, mainly contains PET particles that are generally bigger. A low barrel temperature, low die temperature, and fast cooling rate helped to retain the fibers near the extrudate skin. Meanwhile, the variation of the barrel temperature, die temperature, and cooling media did not produce a significant affect on the PET particle size distribution in the central region of the extrudate. A high screw speed and a high postextrusion drawing speed were very effective in producing fibers in the extrudates through elongation of particles. At a PET concentration of 30%, coalescence of the PET phase was prevalent, leading to the formation of PET platelets near the extrudate skin and irregular PET networks in the central region of the extrudate.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-8995/en_US
dc.relation.ispartofJournal of Applied Polymer Scienceen_US
dc.subjectCompositesen_US
dc.subjectMelt Extrusionen_US
dc.subjectMorphologyen_US
dc.titleStudy of poly(ethylene terephthalate)/polypropylene microfibrillar composites. I. Morphological development in melt extrusionen_US
dc.typeArticleen_US
dc.identifier.emailCheung, WL:wlcheung@hkucc.hku.hken_US
dc.identifier.authorityCheung, WL=rp00103en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/app.12190en_US
dc.identifier.scopuseid_2-s2.0-0037531253en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037531253&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume89en_US
dc.identifier.issue7en_US
dc.identifier.spage1743en_US
dc.identifier.epage1752en_US
dc.identifier.isiWOS:000183356000003-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLin, XD=36768282100en_US
dc.identifier.scopusauthoridCheung, WL=7202743084en_US

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