화학공학소재연구정보센터
Journal of Polymer Science Part B: Polymer Physics, Vol.46, No.18, 1939-1951, 2008
Blends of carbon blacks and multiwall carbon nanotubes as reinforcing fillers for hydrocarbon rubbers
The reinforcement of a styrene-butadiene rubber (SBR) by single fillers-carbon black (CB) or multiwall carbon nanotubes (MWNTs)-or by mixtures of CB and MWNTs, is investigated. The morphologies, mechanical and electrical properties of the composites, are analyzed. A significant improvement in the tensile properties is observed for samples containing a dual phase. Using atomic force (AFM) and transmission electron (TEM) microscopies, we demonstrate that the double loading improves the dispersion of the nanotubes in SBR. Electrical measurements show lower resistivity and a lower percolation threshhold for composites containing blends of fillers, which provides further evidence of better dispersion. (C) 2008 Wiley Periodicals, Inc.