Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7214571 | Composites Science and Technology | 2018 | 25 Pages |
Abstract
Conductive liquid silicone rubber-based composites were prepared through incorporation of fumed silica (FSiO2) and polydimethylsiloxanes (PDMS) modified MWCNTs (P-MWCNTs), and their mechanical and electrical properties were investigated. It is shown that the introduction of P-MWCNTs with P-MWCNTs/FSiO2 ratio of 0.25/30 (w/w) increases the cross-linking density and the thermal stability of the composites significantly. The improved mechanical performance, e.g., 60 % increase for Young's modulus and 47 % increase for tear strength, should be ascribed to the stronger interfacial interaction between P-MWCNTs and PDMS matrix and better dispersion of P-MWCNTs due to existence of PDMS on CNTs surface. Moreover, the better dispersion of P-MWCNTs also ensures much higher electrical conductivity than original carboxyl functionalized MWCNTs (COOH-MWCNTs) at relatively low loading, e.g., 10â3â¯Sâ¯mâ1 versus 10â8â¯Sâ¯mâ1 at MWCNTs/FSiO2 ratio of 2.5/30, which could be attributed to the formation of CNTs network.
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Engineering (General)
Authors
Junhua Kong, Yuejin Tong, Jiaotong Sun, Yuefan Wei, Warintorn Thitsartarn, Chee Chuan Yeo Jayven, Joseph Kinyanjui Muiruri, Siew Yee Wong, Chaobin He,