Distinguishing between virgin and post-consumption bottle-grade poly (ethylene terephthalate) using thermal properties

dc.creatorRomao, W
dc.creatorFranco, MF
dc.creatorBueno, MIMS
dc.creatorDe Paoli, MA
dc.date2010
dc.dateOCT
dc.date2014-11-20T04:31:50Z
dc.date2015-11-26T17:14:11Z
dc.date2014-11-20T04:31:50Z
dc.date2015-11-26T17:14:11Z
dc.date.accessioned2018-03-29T00:02:31Z
dc.date.available2018-03-29T00:02:31Z
dc.identifierPolymer Testing. Elsevier Sci Ltd, v. 29, n. 7, n. 879, n. 885, 2010.
dc.identifier0142-9418
dc.identifierWOS:000282456400015
dc.identifier10.1016/j.polymertesting.2010.05.009
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62563
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/62563
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62563
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281752
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionRecycled bottle-grade poly(ethylene terephthalate), PET, can be mixed with virgin resin in different concentrations to be used by the food packaging industry. This will contribute to the growth of mechanical recycling of PET, but it is important to have an experimental method to detect the presence of recycled polymer in a batch. Differential scanning calorimetry was used to study the influences of the presence of post-consumption bottle-grade PET and of thermo-mechanical processing on the thermal properties of bottle-grade PET. When the virgin resin is subjected to thermo-mechanical processing (pre-forms, soft-drink bottles production, recycling or PET mixtures preparation), the crystallization rate is affected and a clearly defined crystallization peak, T(c), is observed. A bimodal melting temperature, T(m), behavior is observed for samples that were subjected to processing. When post-consumption PET is present in the mixtures, the T(m) bimodal behavior is followed by a narrowing and a shift of the T(c) to higher temperatures. Therefore, the crystallization rate, T(m) and T(c) are the principal thermal properties that can be used to distinguish between virgin and post-consumption resins submitted to thermo-mechanical processing.
dc.description29
dc.description7
dc.description879
dc.description885
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2004/15084-6, 2007/54023-0]
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationPolymer Testing
dc.relationPolym. Test
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectDifferential scanning calorimetry
dc.subjectDSC
dc.subjectDegradation
dc.subjectRecycling
dc.subjectPET
dc.subjectPostconsumer Poly(ethylene-terephthalate) Pet
dc.subjectDiethylene Glycol
dc.subjectRecycled Poly(ethylene-terephthalate)
dc.subjectCrystallization Kinetics
dc.subjectMechanical-properties
dc.subjectDegradation
dc.subjectCopolyesters
dc.subjectUnits
dc.subjectPolymerization
dc.subjectPolyethylene
dc.titleDistinguishing between virgin and post-consumption bottle-grade poly (ethylene terephthalate) using thermal properties
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución