Počet záznamů: 1

Polypropylene nanocomposities studied by local micro- and nano-mechanical measurements

  1. 1.
    0361430 - UTAM-F 2012 RIV CZ eng J - Článek v odborném periodiku
    Zamfirova, G. - Bláhová, O. - Minster, Jiří - Gaydarov, V.
    Polypropylene nanocomposities studied by local micro- and nano-mechanical measurements.
    Chemické listy. Roč. 105, č. 17 (2011), s. 725-728 ISSN 0009-2770
    Grant CEP: GA AV ČR(CZ) IAA200710801
    Výzkumný záměr: CEZ:AV0Z20710524
    Klíčová slova: polypropylene composites * carbon nanotubes * indentation * microhardness
    Kód oboru RIV: JI - Kompozitní materiály
    Impakt faktor: 0.529, rok: 2011

    This paper reports on a micro- and nano-indentation investigation of iPP filled with multiwall carbon nanotubes (MWCNT). Wickers microhardness and Total microhardness were determined using a mhp- 150 microhardness tester and a NU-2 light microscope. Elastic modulus, instantaneous compliance and hardness were obtained using an XP Nano Indenter. It was established that a small weight fractions of MWCNT significantly improves the microindentation parameters. A comparison of the results of the two measuring techniques showed a relatively large difference in hardness values. This may be related to the different physical nature of the measured microhardness characteristic. There is a discussion presented of the similarity and/or difference in the microhardness values from the viewpoint of the trend of concentration dependencies and also their physical peculiarities.
    Trvalý link: http://hdl.handle.net/11104/0198742