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Article: Nylon 66/clay nanocomposite structure development in a twin screw extruder

TitleNylon 66/clay nanocomposite structure development in a twin screw extruder
Authors
KeywordsClay Products
Differential Scanning Calorimetry
Metallic Matrix Composites
Microscopes
Nanocomposites
Plastics Extruders
Polyamides
Rayon
Scanning
Scanning Electron Microscopy
Transmission Electron Microscopy
X Ray Diffraction Analysis
Issue Date2009
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.4spe.org/periodicals/journals/pes.htm
Citation
Polymer Engineering and Science, 2009, v. 49 n. 4, p. 824-834 How to Cite?
AbstractNylon 66/clay nanocomposites were prepared in a Berstorff ZE25A UTX Ultra-glide corotating twin screw extruder at 270°C. Two types of extruder configurations with different mixing sections were used. One comprised two kneading block sections in the screws (KB only) and the other had a combination of a multiprocess-element (MPE) section and a kneading block section. Samples at eight different locations along the extruder screw were obtained and analyzed using scanning electron microscope and transmission electron microscope to examine the morphology development of clay inside nylon down the length of the extruder. It is found that the clay aggregates are quickly broken into smaller tactoids (micron size) and then even much smaller clay bundles (nanometer size) and single clay platelets in the first mixing section. The structure changes in the second mixing section are much less significant. X-ray diffraction (XRD) analysis of the nanocomposite products showed small, or disappearance of, characteristic XRD (001) peaks, which indicates partial exfoliation, or complete exfoliation, respectively, of clay inside nylon matrix. Differential scanning calorimetry nonisothermal study shows that the crystallization temperature of the nanocomposites has increased around 17°C when compared with neat nylon 66. © 2009 Society of Plastics Engineers.
Persistent Identifierhttp://hdl.handle.net/10722/90886
ISSN
2015 Impact Factor: 1.719
2015 SCImago Journal Rankings: 0.560
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLin, Ben_HK
dc.contributor.authorThuümen, Aen_HK
dc.contributor.authorHeim, H-Pen_HK
dc.contributor.authorScheel, Gen_HK
dc.contributor.authorSundararaj, Uen_HK
dc.date.accessioned2010-09-17T10:09:51Z-
dc.date.available2010-09-17T10:09:51Z-
dc.date.issued2009en_HK
dc.identifier.citationPolymer Engineering and Science, 2009, v. 49 n. 4, p. 824-834en_HK
dc.identifier.issn0032-3888en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90886-
dc.description.abstractNylon 66/clay nanocomposites were prepared in a Berstorff ZE25A UTX Ultra-glide corotating twin screw extruder at 270°C. Two types of extruder configurations with different mixing sections were used. One comprised two kneading block sections in the screws (KB only) and the other had a combination of a multiprocess-element (MPE) section and a kneading block section. Samples at eight different locations along the extruder screw were obtained and analyzed using scanning electron microscope and transmission electron microscope to examine the morphology development of clay inside nylon down the length of the extruder. It is found that the clay aggregates are quickly broken into smaller tactoids (micron size) and then even much smaller clay bundles (nanometer size) and single clay platelets in the first mixing section. The structure changes in the second mixing section are much less significant. X-ray diffraction (XRD) analysis of the nanocomposite products showed small, or disappearance of, characteristic XRD (001) peaks, which indicates partial exfoliation, or complete exfoliation, respectively, of clay inside nylon matrix. Differential scanning calorimetry nonisothermal study shows that the crystallization temperature of the nanocomposites has increased around 17°C when compared with neat nylon 66. © 2009 Society of Plastics Engineers.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.4spe.org/periodicals/journals/pes.htmen_HK
dc.relation.ispartofPolymer Engineering and Scienceen_HK
dc.subjectClay Productsen_HK
dc.subjectDifferential Scanning Calorimetryen_HK
dc.subjectMetallic Matrix Compositesen_HK
dc.subjectMicroscopesen_HK
dc.subjectNanocompositesen_HK
dc.subjectPlastics Extrudersen_HK
dc.subjectPolyamidesen_HK
dc.subjectRayonen_HK
dc.subjectScanningen_HK
dc.subjectScanning Electron Microscopyen_HK
dc.subjectTransmission Electron Microscopyen_HK
dc.subjectX Ray Diffraction Analysisen_HK
dc.titleNylon 66/clay nanocomposite structure development in a twin screw extruderen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/pen.21327en_HK
dc.identifier.scopuseid_2-s2.0-63449096198en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-63449096198&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume49en_HK
dc.identifier.issue4en_HK
dc.identifier.spage824en_HK
dc.identifier.epage834en_HK
dc.identifier.eissn1548-2634-
dc.identifier.isiWOS:000264534300024-

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