Effect of carbon nanotubes with different lengths on mechanical and electrical properties of silica-filled styrene butadiene rubber compounds |
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| Authors: | Suk Moon Park Young Woo Lim Chang Hwan Kim Dong Jin Kim Won-Jin Moon Jee-Hoon Kim Jong-Sook Lee Chang Kook Hong Gon Seo |
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| Affiliation: | 1. School of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, Republic of Korea;2. NEXEN Tire Corporation R&D Center, 30 Yusan-Dong, Yangsan-Si, Kyungnam 626-230, Republic of Korea;3. Korea Basic Science Institute Gwangju Center, Gwangju 500-757, Republic of Korea;4. School of Materials Science and Engineering, Chonnam National University, Gwangju 500-757, Republic of Korea |
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| Abstract: | Carbon nanotubes (CNTs) having three different lengths of 5, 30, and 100 μm 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 7 phr, while the amount of silica was set high at 80 phr 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. |
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