Typical diffusion behaviour in packaging polymers - Application to functional barriers

Dole, P; Feigenbaum, AE; De La Cruz, C; Pastorelli, S; Paseiro, P; Hankemeier, T; Voulzatis, Y; Aucejo, S; Saillard, P; Papaspyrides, C

dc.contributor.author	Dole, P	en
dc.contributor.author	Feigenbaum, AE	en
dc.contributor.author	De La Cruz, C	en
dc.contributor.author	Pastorelli, S	en
dc.contributor.author	Paseiro, P	en
dc.contributor.author	Hankemeier, T	en
dc.contributor.author	Voulzatis, Y	en
dc.contributor.author	Aucejo, S	en
dc.contributor.author	Saillard, P	en
dc.contributor.author	Papaspyrides, C	en
dc.date.accessioned	2014-03-01T01:25:27Z
dc.date.available	2014-03-01T01:25:27Z
dc.date.issued	2006	en
dc.identifier.issn	0265-203X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17666
dc.subject	Activation energy	en
dc.subject	Diffusion coefficient	en
dc.subject	Functional barrier	en
dc.subject	Migration	en
dc.subject	Packaging	en
dc.subject	Polymer	en
dc.subject	Recycling	en
dc.subject	Surrogates	en
dc.subject.classification	Chemistry, Applied	en
dc.subject.classification	Food Science & Technology	en
dc.subject.classification	Toxicology	en
dc.subject.other	ethylene vinyl acetate copolymer	en
dc.subject.other	ethylene vinyl alcohol copolymer	en
dc.subject.other	glass	en
dc.subject.other	plastic	en
dc.subject.other	polyacrylonitrile	en
dc.subject.other	polyamide	en
dc.subject.other	polyethylene terephthalate	en
dc.subject.other	polymer	en
dc.subject.other	polyolefin	en
dc.subject.other	polystyrene	en
dc.subject.other	polyvinylchloride	en
dc.subject.other	rubber	en
dc.subject.other	vinylidene chloride	en
dc.subject.other	article	en
dc.subject.other	controlled study	en
dc.subject.other	diffusion	en
dc.subject.other	diffusion coefficient	en
dc.subject.other	energy	en
dc.subject.other	food contamination	en
dc.subject.other	food packaging	en
dc.subject.other	molecular weight	en
dc.subject.other	prediction	en
dc.subject.other	priority journal	en
dc.subject.other	recycling	en
dc.subject.other	reference value	en
dc.subject.other	temperature	en
dc.subject.other	Acrylic Resins	en
dc.subject.other	Conservation of Natural Resources	en
dc.subject.other	Food Contamination	en
dc.subject.other	Food Packaging	en
dc.subject.other	Molecular Weight	en
dc.subject.other	Nylons	en
dc.subject.other	Plastics	en
dc.subject.other	Polyenes	en
dc.subject.other	Polyethylene Terephthalates	en
dc.subject.other	Polymers	en
dc.subject.other	Polystyrenes	en
dc.subject.other	Polyvinyl Chloride	en
dc.subject.other	Polyvinyls	en
dc.subject.other	Reference Values	en
dc.title	Typical diffusion behaviour in packaging polymers - Application to functional barriers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/02652030500373661	en
heal.identifier.secondary	http://dx.doi.org/10.1080/02652030500373661	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	When plastics are collected for recycling, possibly contaminated articles might be recycled into food packaging, and thus the contaminants might subsequently migrate into the food. Multilayer functional barriers may be used to delay and to reduce such migration. The contribution of the work reported here is to establish reference values (at 40°C) of diffusion coefficients and of activation energies to predict the functional barrier efficiency of a broad range of polymers (polyolefins, polystyrene, polyamide, PVC, PET, PVDC, [ethylene vinyl alcohol copolymer], polyacrylonitrile and [ethylene vinyl acetate copolymer]). Diffusion coefficients (D) and activation energies (Ea) were measured and were compiled together with literature data. This allowed identification of new trends for the log D=f(molecular weight) relationships. The slopes were a function of the barrier efficiency of the polymer and temperature. The apparent activation energy of diffusion displayed two domains of variation with molecular weight (M). For low M (gases), there was little variation of Ea. Focusing on larger molecules, high barrier polymers displayed a larger dependence of Ea with M. The apparent activation energy decreased with T. These results suggest a discontinuity between rubbery and glassy polymers. © 2006 Taylor & Francis.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	Food Additives and Contaminants	en
dc.identifier.doi	10.1080/02652030500373661	en
dc.identifier.isi	ISI:000235003300014	en
dc.identifier.volume	23	en
dc.identifier.issue	2	en
dc.identifier.spage	202	en
dc.identifier.epage	211	en