Interrelation between long-term viscoelasticity and viscoplastic responses of semicrystalline polymers

Kontou, E; Spathis, G

dc.contributor.author	Kontou, E	en
dc.contributor.author	Spathis, G	en
dc.date.accessioned	2014-03-01T01:19:04Z
dc.date.available	2014-03-01T01:19:04Z
dc.date.issued	2003	en
dc.identifier.issn	0021-8995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15357
dc.subject	Polyethylene	en
dc.subject	Transitions	en
dc.subject	Viscoelastic properties	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Crystalline materials	en
dc.subject.other	Differential scanning calorimetry	en
dc.subject.other	Dynamic mechanical analysis	en
dc.subject.other	Morphology	en
dc.subject.other	Tensile testing	en
dc.subject.other	Viscoelasticity	en
dc.subject.other	Semicrystalline polymers	en
dc.subject.other	Polyethylenes	en
dc.subject.other	catalyst	en
dc.subject.other	morphology	en
dc.subject.other	polyethylene	en
dc.subject.other	tensile property	en
dc.subject.other	viscoelasticity	en
dc.title	Interrelation between long-term viscoelasticity and viscoplastic responses of semicrystalline polymers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.11876	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.11876	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	Two types of linear low-density polyethylenes, prepared by metallocene catalysts were studied experimentally in terms of differential scanning calorimetry, dynamic mechanical analysis (DMA), and tensile testing. The different comonomer content and the small amounts of long branching in one of the materials studied strongly affect the crystalline distribution and morphology and, consequently, the DMA and tensile experimental data. From the experimental DMA data, the function of relaxation modulus, treated as a material property, is used to describe the corresponding tensile experimental results. A constitutive analysis that considers the viscoelastic path at small strains and the viscoplastic one at high strains proved to be capable of describing the tensile behavior of the materials. (C) 2003 Wiley Periodicals, Inc.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.11876	en
dc.identifier.isi	ISI:000181547000007	en
dc.identifier.volume	88	en
dc.identifier.issue	8	en
dc.identifier.spage	1942	en
dc.identifier.epage	1950	en