Recycled and restabilized HDPE bottle crates: Retention of critical properties after heat aging

Kartalis, CN; Papaspyrides, CD; Pfaendner, R; Hoffmann, K; Herbst, H

dc.contributor.author	Kartalis, CN	en
dc.contributor.author	Papaspyrides, CD	en
dc.contributor.author	Pfaendner, R	en
dc.contributor.author	Hoffmann, K	en
dc.contributor.author	Herbst, H	en
dc.date.accessioned	2014-03-01T01:17:00Z
dc.date.available	2014-03-01T01:17:00Z
dc.date.issued	2001	en
dc.identifier.issn	0032-3888	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14317
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Aging of materials	en
dc.subject.other	Crystalline materials	en
dc.subject.other	Embrittlement	en
dc.subject.other	Heat treatment	en
dc.subject.other	Melting	en
dc.subject.other	Packaging	en
dc.subject.other	Pigments	en
dc.subject.other	Recycling	en
dc.subject.other	Remelting	en
dc.subject.other	Tensile strength	en
dc.subject.other	Thermodynamic stability	en
dc.subject.other	Microphotographs	en
dc.subject.other	High density polyethylenes	en
dc.subject.other	High density polyethylene	en
dc.subject.other	Packaging materials	en
dc.title	Recycled and restabilized HDPE bottle crates: Retention of critical properties after heat aging	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/pen.10774	en
heal.identifier.secondary	http://dx.doi.org/10.1002/pen.10774	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	Oven aging was applied for about 8800 hours (more than one year) to evaluate the long-term thermal stability of post-used HDPE material recycled from bottle crates. For recycling, the remelting-restabilization technique was applied. To study the effect of restabilization, crystallinity and melt flow rate were monitored during heat aging. Furthermore, tensile strength and tensile impact strength were followed together with the time until embrittlement. These data were enriched with microphotographs of the specimens' surfaces. Finally, repigmentation was used to evaluate the role of new pigments on the final performance of the recycled material. The results illustrate that restabilization is mandatory for improving the long-term thermal stability of the post-used crate material, enabling its reuse in the original application.	en
heal.publisher	SOC PLASTICS ENG INC	en
heal.journalName	Polymer Engineering and Science	en
dc.identifier.doi	10.1002/pen.10774	en
dc.identifier.isi	ISI:000168993400009	en
dc.identifier.volume	41	en
dc.identifier.issue	5	en
dc.identifier.spage	771	en
dc.identifier.epage	781	en