Influence of carbon nanotube concentration and sonication temperature on mechanical properties of HDPE/CNT nanocomposites
Autores
Fullerenes Nanotubes and Carbon Nanostructures , vol. 25 , no. 9 , pp. 531-539
ISSN: 1536383X
Resumo
© 2017 Taylor & Francis Group, LLC.Carbon nanotube (CNT) reinforced high-density polyethylene (HDPE) composites were prepared by a melt mixing procedure. The mechanical properties were analyzed using a central composite design where key factors were CNT concentration and sonication temperature during the sample preparation process. The results indicated that the optimum values were 0.8 wt% for the concentration of CNT and 55°C for the sonication temperature. The samples obtained at optimal conditions were systematically studied. Nanoindentation analysis showed an increase of 43% in Vickers hardness of the nanocomposite when compared to pure polymer. The improvement on the mechanical property is related to changes in the thermo-physical and viscoelastic properties of the nanocomposite.
Palavras-chave
2-s2.0-85033460013