Closed-loop recycling of postused garden chairs based on PP using the restabilization technique. I. Evaluation of processing parameters

Kartalis, CN; Papaspyrides, CD; Pfaendner, R

dc.contributor.author	Kartalis, CN	en
dc.contributor.author	Papaspyrides, CD	en
dc.contributor.author	Pfaendner, R	en
dc.date.accessioned	2014-03-01T01:17:37Z
dc.date.available	2014-03-01T01:17:37Z
dc.date.issued	2002	en
dc.identifier.issn	0021-8995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14590
dc.subject	Process Parameters	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Chemical bonds	en
dc.subject.other	Degradation	en
dc.subject.other	Pigments	en
dc.subject.other	Recycling	en
dc.subject.other	Remelting	en
dc.subject.other	Stabilizers (agents)	en
dc.subject.other	Closed-loop recycling	en
dc.subject.other	Polypropylenes	en
dc.subject.other	recycling	en
dc.title	Closed-loop recycling of postused garden chairs based on PP using the restabilization technique. I. Evaluation of processing parameters	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.11014	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.11014	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	A remelting-restabilization technique was applied to evaluate the dosed-loop recycling of postused, white pigmented, garden chairs made from CaCO3-filled polypropylene (PP). Analysis of the randomly collected postused chairs showed only an insufficient quantity of residual active stabilizers. Different stabilization systems in selected concentrations were employed to investigate the optimum restabilization recipe for eliminating degradation effects during reprocessing. For monitoring the processing stability of the restabilized and nonrestabilized material a multiple extrusion procedure at two different reprocessing temperatures was performed. Furthermore, a repigmentation step was applied to investigate the role of the additional pigment on the processing stability of the recycled product. Finally, mechanical tests were carried out, for studying further the effect of restabilization on the mechanical performance of the recycled material. The results lead to the conclusion that restabilization for quality improvement of postused filled PP chair material during reprocessing is permitting its reuse in the original application. © 2002 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 86.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.11014	en
dc.identifier.isi	ISI:000178322000011	en
dc.identifier.volume	86	en
dc.identifier.issue	10	en
dc.identifier.spage	2472	en
dc.identifier.epage	2485	en