Migration of plasticizers to solid environments: the case of plasticized PVC/di-octyl phthalate/rigid PVC

Papaspyrides, CD; Papakonstantinou, V

dc.contributor.author	Papaspyrides, CD	en
dc.contributor.author	Papakonstantinou, V	en
dc.date.accessioned	2014-03-01T01:43:40Z
dc.date.available	2014-03-01T01:43:40Z
dc.date.issued	1995	en
dc.identifier.issn	02508079	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24180
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0029520013&partnerID=40&md5=c8a414554cb1cccb378b42c28986608f	en
dc.subject.other	Annealing	en
dc.subject.other	Approximation theory	en
dc.subject.other	Diffusion in solids	en
dc.subject.other	Industrial applications	en
dc.subject.other	Polyvinyl chlorides	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Structure (composition)	en
dc.subject.other	Dioctyl phthalate	en
dc.subject.other	Fick's law	en
dc.subject.other	Polymer structure	en
dc.subject.other	Plasticizers	en
dc.title	Migration of plasticizers to solid environments: the case of plasticized PVC/di-octyl phthalate/rigid PVC	en
heal.type	journalArticle	en
heal.publicationDate	1995	en
heal.abstract	There exist important industrial applications, such as hoses or plastic windows, dealing with closely combining, plasticized and rigid poly(vinyl chloride) (PVC). Nevertheless, migration of plasticizer causes severe variation of the mechanical performance of the end-products. In this work the common system plasticized PVC /di-octyl-phthalate /rigid PVC was studied under two-sided diffusion conditions, i.e. from a thin sheet of plasticized PVC to two sheets of rigid PVC, each in contact with one side of the plasticized sheet. Three different levels of initial plasticizer concentration (48, 66 and 100 phr) have been considered for a period of about five months, until equilibrium was reached. During this period the migration process was monitored by weight changes. It was proved that the Fick's law approximation for short times can be used to describe the migration kinetics for this solid/solid system. On the other hand, macroscopic observations revealed that no plasticizer was accumulated at the interface, i.e. all plasticizer leaving the plasticized sheet entered the rigid ones. Finally, it seems that the controlling stage is the diffusion inside plasticized PVC while possible annealing of the plasticized polymer structure cannot be excluded.	en
heal.publisher	Freund Publ House, Tel Aviv, Israel	en
heal.journalName	Journal of Polymer Engineering	en
dc.identifier.volume	15	en
dc.identifier.issue	1-2	en
dc.identifier.spage	153	en
dc.identifier.epage	159	en