Dissolution/reprecipitation: A model process for PET bottle recycling

Poulakis, JG; Papaspyrides, CD

dc.contributor.author	Poulakis, JG	en
dc.contributor.author	Papaspyrides, CD	en
dc.date.accessioned	2014-03-01T01:16:25Z
dc.date.available	2014-03-01T01:16:25Z
dc.date.issued	2001	en
dc.identifier.issn	0021-8995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14043
dc.subject	Bottles	en
dc.subject	Dissolution/reprecipitation	en
dc.subject	Poly(ethylene terephthalate) (PET)	en
dc.subject	Recycling	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Blow molding	en
dc.subject.other	Crystallization	en
dc.subject.other	Dissolution	en
dc.subject.other	Distillation	en
dc.subject.other	Grain size and shape	en
dc.subject.other	Molecular weight	en
dc.subject.other	Precipitation (chemical)	en
dc.subject.other	Solvents	en
dc.subject.other	Blow-molded bottles	en
dc.subject.other	Polyethylene terephthalates	en
dc.title	Dissolution/reprecipitation: A model process for PET bottle recycling	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.1417	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.1417	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	A dissolution/reprecipitation route was followed for the recycling of poly(ethylene terephthalate) (PET). Model experiments an virgin material, either in the form of pellets: or blow-molded bottles, are presented. The process proposed comprises dissolution of the plastic in an appropriate solvent, reprecipitation by using a nonsolvent, thorough washing of the material obtained, and drying. The solvent mixtures involved ar e separated by fractional distillation for further reuse. N-Methyl-2-pyrrolidone (NMP)/n-octane + n-hexane proved to be a particularly effective solvent/nonsolvent system. Further investigation was focused on the effect of the sample history through successive recycling cycles. The recycled material was evaluated in terms of molecular weight, crystallinity, and grain-size analysis, resulting in an excellent quality, competing with the virgin grade. (C) 2001 John Wiley & Sons, Inc.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.1417	en
dc.identifier.isi	ISI:000168492700011	en
dc.identifier.volume	81	en
dc.identifier.issue	1	en
dc.identifier.spage	91	en
dc.identifier.epage	95	en