Počet záznamů: 1

Nonlinear tensile creep of linear low density polyethylene/fumed silica nanocomposites: time-strain superposition and creep prediction

  1. 1.
    0349098 - UMCH-V 2011 RIV US eng J - Článek v odborném periodiku
    Dorigato, A. - Pegoretti, A. - Kolařík, Jan
    Nonlinear tensile creep of linear low density polyethylene/fumed silica nanocomposites: time-strain superposition and creep prediction.
    Polymer Composites. Roč. 31, č. 11 (2010), s. 1947-1955 ISSN 0272-8397
    Grant CEP: GA ČR GA106/09/1348
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: heterogeneous polymer blends * free-volume theory * copolymer blends
    Kód oboru RIV: JI - Kompozitní materiály
    Impakt faktor: 0.998, rok: 2010

    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.
    Trvalý link: http://hdl.handle.net/11104/0006074