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Article: Visualization of Poly(ether imide) and Polycarbonate Blending in an Internal Mixer

TitleVisualization of Poly(ether imide) and Polycarbonate Blending in an Internal Mixer
Authors
KeywordsBlends
Miscibility
Phase Inversion
Polycarbonates
Visualization
Issue Date2004
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, 2004, v. 92 n. 2, p. 1165-1175 How to Cite?
AbstractThe blending process of poly(ether imide)/polycarbonate (PEI/PC) was studied by visualization of blending in an internal mixer at 340°C. Distinct pellet deforming, softening, aggregation, stretching, bending, sheeting, and dispersing were seen during the blending process. By ramping the temperature of the barrel of the internal mixer, the process of pellet softening and deforming, and the phase-inversion phenomenon were studied by examining the visualization results and the torque readings. It was found that a peak in torque occurred at the phase-inversion point. It was also found that the blends are semitransparent at higher PEI composition (>80 wt %). SEM and TEM micrographs and DSC data verified the visualization result that PEI/PC blends are partially miscible at higher PEI compositions. The number-average particle size was determined for the PEI/PC blends and it was found that the experimental results in the dilute solution limit for both PC drops and PEI drops did not match with the particle size predicted by Taylor's theory. The particle sizes at 15 wt % concentration were of the same order of magnitude as those calculated using Wu's correlation. © 2004 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/91011
ISSN
2015 Impact Factor: 1.866
2015 SCImago Journal Rankings: 0.578
References

 

DC FieldValueLanguage
dc.contributor.authorLin, Ben_HK
dc.contributor.authorSundararaj, Uen_HK
dc.date.accessioned2010-09-17T10:11:42Z-
dc.date.available2010-09-17T10:11:42Z-
dc.date.issued2004en_HK
dc.identifier.citationJournal of Applied Polymer Science, 2004, v. 92 n. 2, p. 1165-1175en_HK
dc.identifier.issn0021-8995en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91011-
dc.description.abstractThe blending process of poly(ether imide)/polycarbonate (PEI/PC) was studied by visualization of blending in an internal mixer at 340°C. Distinct pellet deforming, softening, aggregation, stretching, bending, sheeting, and dispersing were seen during the blending process. By ramping the temperature of the barrel of the internal mixer, the process of pellet softening and deforming, and the phase-inversion phenomenon were studied by examining the visualization results and the torque readings. It was found that a peak in torque occurred at the phase-inversion point. It was also found that the blends are semitransparent at higher PEI composition (>80 wt %). SEM and TEM micrographs and DSC data verified the visualization result that PEI/PC blends are partially miscible at higher PEI compositions. The number-average particle size was determined for the PEI/PC blends and it was found that the experimental results in the dilute solution limit for both PC drops and PEI drops did not match with the particle size predicted by Taylor's theory. The particle sizes at 15 wt % concentration were of the same order of magnitude as those calculated using Wu's correlation. © 2004 Wiley Periodicals, Inc.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-8995/en_HK
dc.relation.ispartofJournal of Applied Polymer Scienceen_HK
dc.subjectBlendsen_HK
dc.subjectMiscibilityen_HK
dc.subjectPhase Inversionen_HK
dc.subjectPolycarbonatesen_HK
dc.subjectVisualizationen_HK
dc.titleVisualization of Poly(ether imide) and Polycarbonate Blending in an Internal Mixeren_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-1642385799en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-1642385799&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume92en_HK
dc.identifier.issue2en_HK
dc.identifier.spage1165en_HK
dc.identifier.epage1175en_HK

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