Transport phenomena into and out of plasticized PVC sheets. The influence of sample history

Papaspyrides Constantine, D

dc.contributor.author	Papaspyrides Constantine, D	en
dc.date.accessioned	2014-03-01T01:09:06Z
dc.date.available	2014-03-01T01:09:06Z
dc.date.issued	1992	en
dc.identifier.issn	0021-8995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10846
dc.subject	Transport Phenomena	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Plasticizers - Diffusion	en
dc.subject.other	Plasticizers - Effects	en
dc.subject.other	Plastics Sheets - Transport Properties	en
dc.subject.other	Polymers - Structure	en
dc.subject.other	Dioctyl Phthalate	en
dc.subject.other	Immersion in Paraffin Oil	en
dc.subject.other	Plasticized PVC	en
dc.subject.other	Plastics Component Migration	en
dc.subject.other	Polyvinyl Chlorides	en
dc.title	Transport phenomena into and out of plasticized PVC sheets. The influence of sample history	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.1992.070440703	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.1992.070440703	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	Diffusional exchanges in plasticized PVC applications comprise a critical aspect of much of the published work, which has been intended to study plasticizer migration into simpler extractants, enabling the various parameters involved in migration to be studied in isolation. In this study the migration of dioctyl phthalate into petroleum oils is investigated with emphasis on prior sample history. Simultaneously, the penetration of the liquid environment into the sheets is monitored. Plasticized PVC samples were prepared containing different amounts of plasticizer. The samples are immersed in paraffin oil until the plasticizer concentration reaches a predetermined value. Afterwards the samples are immersed in white spirit and their migration behavior is compared with that of new samples containing this predetermined plasticizer content, i.e., excluding the prior desorption cycle. Under these experimental conditions the parameters studied include immersion time, immersion temperature, initial plasticizer content and specimen thickness. The results obtained, suggesting considerable restriction of the migration activity for the two-stages specimens, are discussed in terms of surface-depleted concentration profiles and structure rearrangement mechanisms.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.1992.070440703	en
dc.identifier.isi	ISI:A1992HD75400003	en
dc.identifier.volume	44	en
dc.identifier.issue	7	en
dc.identifier.spage	1145	en
dc.identifier.epage	1152	en