Effect of carbon nanotubes with different lengths on mechanical and electrical properties of silica-filled styrene butadiene rubber compounds

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 19; no. 2; pp. 712 - 719
• Main Authors: Park, Suk Moon, Lim, Young Woo, Kim, Chang Hwan, Kim, Dong Jin, Moon, Won-Jin, Kim, Jee-Hoon, Lee, Jong-Sook, Hong, Chang Kook, Seo, Gon
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.03.2013; 한국공업화학회
• Subjects: Butadiene; Carbon nanotube; Dynamic mechanical properties; Dynamic property; Dynamics; Electrical properties; Electrical property; Electrical resistivity; Loads (forces); Resistivity; SBR; Silica; Styrenes; 화학공학; Carbon nanotube; Electrical property; SBR; Silica; Dynamic property
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2012.10.012

Carbon nanotubes (CNTs) having three different lengths of 5, 30, and 100μm were added to silica-filled styrene butadiene rubber (SBR) compounds in order to investigate the effect of the CNT addition on the dynamic and electrical properties. The amounts of CNTs were 1, 2, 4, and 7phr, while the amount of silica was set high at 80phr to clearly demonstrate the performance of the CNTs as fillers. The effect of CNTs on the silica-filled SBR compounds on the tensile properties is not significant, but the addition of longer CNTs with high loading severely deteriorated the dynamic properties, but considerably enhanced electrical conductivity. The medium loading of CNTs in silica-filled SBR compounds is suitable for the improvement of the electrical conductivity without severely sacrificing the dynamic properties.