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Nonlinear tensile creep of linear low density polyethylene/fumed silica nanocomposites: time-strain superposition and creep prediction
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SYSNO ASEP 0349098 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nonlinear tensile creep of linear low density polyethylene/fumed silica nanocomposites: time-strain superposition and creep prediction Author(s) Dorigato, A. (IT)
Pegoretti, A. (IT)
Kolařík, Jan (UMCH-V)Source Title Polymer Composites. - : Wiley - ISSN 0272-8397
Roč. 31, č. 11 (2010), s. 1947-1955Number of pages 9 s. Language eng - English Country US - United States Keywords heterogeneous polymer blends ; free-volume theory ; copolymer blends Subject RIV JI - Composite Materials R&D Projects GA106/09/1348 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000283407300016 DOI 10.1002/pc.20993 Annotation The main objectives of the study were (i) to quantitatively describe the nonlinear viscoelastic creep of model nanocomposites, (ii) to construct the generalized compliance curve by means of the tensile compliance vs. internal time superposition for a pseudo iso-free-volume state, and (iii) to predict the compliance vs. real time curves for selected stresses. To this end, the free volume theory of nonlinear viscoelastic creep developed for thermoplastics and their blend was successfully employed. Linear low density polyethylene/fumed silica nanocomposites, showing notable enhancement of the creep resistance in proportion to the surface area of incorporated nanofillers, were taken as simple model materials. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2011
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