Počet záznamů: 1

Preparation of gram quantities of high-quality titanate nanotubes and their composites with polyamide 6

  1. 1.
    0349087 - UMCH-V 2011 RIV CN eng J - Článek v odborném periodiku
    Králová, Daniela - Šlouf, Miroslav - Klementová, Mariana - Kužel, R. - Kelnar, Ivan
    Preparation of gram quantities of high-quality titanate nanotubes and their composites with polyamide 6.
    Materials Chemistry and Physics. Roč. 124, č. 1 (2010), s. 652-657 ISSN 0254-0584
    Grant CEP: GA MŠk 2B06096; GA AV ČR KAN200520704; GA ČR GA106/06/0044
    Výzkumný záměr: CEZ:AV0Z40500505; CEZ:AV0Z40320502
    Klíčová slova: titanate nanotubes * crystal structure * electron microscopy
    Kód oboru RIV: CD - Makromolekulární chemie
    Impakt faktor: 2.356, rok: 2010

    Gram quantities of high-quality titanate nanotubes (Ti-NT) were prepared and melt-mixed with polyamide 6 (PA6), which then exhibited a 35% increase in elastic modulus. This increase was considerably higher than in the case of composites with commercial TiO2 nanopowder (14%) or micropowder (9%). Ti-NT with high aspect ratio were prepared by hydrothermal synthesis. Impact of various drying procedures on morphology and structure of Ti-NT was investigated. FESEM and TEM microscopy proved that the best Ti-NT nanopowder with well-dispersed and unbroken single nanotubes resulted from freeze-drying. SAED, HRTEM and PXRD showed that drying procedures did not influence Ti-NT crystalline structure. DSC confirmed that Ti-NT were stable at elevated temperatures, used during melt mixing.
    Trvalý link: http://hdl.handle.net/11104/0006073