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Polypropylene nanocomposities studied by local micro- and nano-mechanical measurements
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SYSNO ASEP 0361430 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Polypropylene nanocomposities studied by local micro- and nano-mechanical measurements Author(s) Zamfirova, G. (BG)
Bláhová, O. (CZ)
Minster, Jiří (UTAM-F) RID, SAI
Gaydarov, V. (BG)Number of authors 4 Source Title Chemické listy. - : Česká společnost chemická - ISSN 0009-2770
Roč. 105, č. 17 (2011), s. 725-728Number of pages 4 s. Language eng - English Country CZ - Czech Republic Keywords polypropylene composites ; carbon nanotubes ; indentation ; microhardness Subject RIV JI - Composite Materials R&D Projects IAA200710801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20710524 - UTAM-F (2005-2011) UT WOS 000297278200019 EID SCOPUS 80052507512 Annotation 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. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2012
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