Preparation and some properties of polyethylene/vermiculite nanocomposites

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation and some properties of polyethylene/vermiculite nanocomposites

Popis výsledku v původním jazyce

The high aspect ratio of layered silicate nanoparticles is very convenient to modify the properties of the polymer, but the hydrophilic nature of silicate surfaces impedes their homogeneous dispersion in the organic polymer phase. The hydrophilic clay minerals are commonly treated with ammonium cations with long alkyl chains to improve the compatibility between the silicate layers and the polymer matrix. In this study, clay mineral vermiculite (V) was used as a clay nanofiller to the polyethylene (PE) and the functional and mechanical properties of PE/V nanocomposite plates were characterized. Vermiculite has been modified to the role of nanofiller with organic dodecylamine (DA) compounds in various concentrations. Exfoliation of modified vermiculite nanofiller in PE was studied on the nanocomposite plates using X-ray diffraction analysis. The quality of nanofiller distribution in polymer matrix was observed using light microscopy. Changes in mechanical properties of the PE/VDA nanocomposites in comparison with the pure PE were studied on the data from the Creep measurements. The antibacterial activity of the surfaces of composite plates was tested on the Gram-positive bacteria Enterococcus faecalis.

Název v anglickém jazyce

Preparation and some properties of polyethylene/vermiculite nanocomposites

Popis výsledku anglicky

The high aspect ratio of layered silicate nanoparticles is very convenient to modify the properties of the polymer, but the hydrophilic nature of silicate surfaces impedes their homogeneous dispersion in the organic polymer phase. The hydrophilic clay minerals are commonly treated with ammonium cations with long alkyl chains to improve the compatibility between the silicate layers and the polymer matrix. In this study, clay mineral vermiculite (V) was used as a clay nanofiller to the polyethylene (PE) and the functional and mechanical properties of PE/V nanocomposite plates were characterized. Vermiculite has been modified to the role of nanofiller with organic dodecylamine (DA) compounds in various concentrations. Exfoliation of modified vermiculite nanofiller in PE was studied on the nanocomposite plates using X-ray diffraction analysis. The quality of nanofiller distribution in polymer matrix was observed using light microscopy. Changes in mechanical properties of the PE/VDA nanocomposites in comparison with the pure PE were studied on the data from the Creep measurements. The antibacterial activity of the surfaces of composite plates was tested on the Gram-positive bacteria Enterococcus faecalis.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NANOCON 2012

ISBN

978-80-87294-32-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

86-91

Název nakladatele

Tanger spol. s r. o.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 10. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000333697100014