Effects of selected process parameters on the morphology of poly(ethylene terephthalate) preforms and bottles

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dc.contributor.authorHanley, TLen_AU
dc.contributor.authorSutton, Den_AU
dc.contributor.authorKaratchevtseva, Ien_AU
dc.contributor.authorCookson, DJen_AU
dc.contributor.authorBurford, RPen_AU
dc.contributor.authorKnott, RBen_AU
dc.date.accessioned2008-04-28T02:03:21Zen_AU
dc.date.accessioned2010-04-30T05:02:45Zen_AU
dc.date.available2008-04-28T02:03:21Zen_AU
dc.date.available2010-04-30T05:02:45Zen_AU
dc.date.issued2007-10-05en_AU
dc.date.statistics2007-10en_AU
dc.description.abstractSmall-angle X-ray scattering (SAXS) studies and polarized optical microscopy were undertaken to explore possible morphological explanations for the poor mechanical strength in the petaloid bases of poly(ethylene terephthalate) bottles. With a standard commercial production line, one set of injection-molded preforms was over-packed by 1.1 wt % to investigate the effect on the molecular morphology with respect to a set of control samples. Both sets of preforms showed highly crystalline and oriented areas corresponding to the injection gate region. The main body of the control preform was amorphous, and although the overpacked preform was essentially amorphous, there was some evidence for weak crystallinity. The SAXS patterns of the bottle petaloid base blown from the corresponding preforms produced similar SAXS patterns for overpacked and control bottle bases, indicating that the commercial process is robust at least to this degree of overpacking. Optical microscopy showed detailed crystalline features around the gate region and thin crystalline layers sandwiched between a quenched skin layer in direct contact with the cold mold walls and the main flow of material into the mold. © 2007, Wiley-Blackwell.en_AU
dc.identifier.citationHanley, T., Sutton, D., Karatchevtseva, I., Cookson, D., Burford, R., & Knott, R. (2007). Effects of selected process parameters on the morphology of poly(ethylene terephthalate) preforms and bottles. Journal of Applied Polymer Science, 106(1), 238-247. doi:10.1002/app.26472en_AU
dc.identifier.govdoc1173en_AU
dc.identifier.issn0021-8995en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Applied Polymer Scienceen_AU
dc.identifier.pagination238-247en_AU
dc.identifier.urihttp://dx.doi.org/10.1002/app.26472en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1125en_AU
dc.identifier.volume106en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectSmall angle scatteringen_AU
dc.subjectPolyestersen_AU
dc.subjectCrystallizationen_AU
dc.subjectMechanicsen_AU
dc.subjectPolypropyleneen_AU
dc.subjectPolymersen_AU
dc.subjectOrientationen_AU
dc.subjectEvolutionen_AU
dc.titleEffects of selected process parameters on the morphology of poly(ethylene terephthalate) preforms and bottlesen_AU
dc.typeJournal Articleen_AU
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