SciELO - Scientific Electronic Library Online

 
vol.15 issue4Si-TCP synthesized from "Mg-free" reagents employed as calcium phosphate cementDevelopment of silicon solar cells and photovoltaic modules in Brazil: analysis of a pilot production author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Materials Research

Print version ISSN 1516-1439

Abstract

COTA, Fábio de Paiva et al. Full factorial design analysis of carbon nanotube polymer-cement composites. Mat. Res. [online]. 2012, vol.15, n.4, pp. 573-580.  Epub July 17, 2012. ISSN 1516-1439.  http://dx.doi.org/10.1590/S1516-14392012005000077.

The work described in this paper is related to the effect of adding carbon nanotubes (CNT) on the mechanical properties of polymer-cement composites. A full factorial design has been performed on 160 samples to identify the contribution provided by the following factors: polymeric phase addition, CNT weight addition and water/cement ratio. The response parameters of the full factorial design were the bulk density, apparent porosity, compressive strength and elastic modulus of the polymer-cement-based nanocomposites. All the factors considered in this analysis affected significantly the bulk density and apparent porosity of the composites. The compressive strength and elastic modulus were affected primarily by the cross-interactions between polymeric phase and CNT additions, and the water/cement ratio with polymeric phase factors.

Keywords : carbon nanotubes; mechanical properties; cement-based composites; Design of Experiments (DOE).

        · text in English     · pdf in English