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Title: Electrically conductive PDMS-grafted CNTs-reinforced silicone elastomer
Authors: Kong, Junhua
Tong, Yuejin
Sun, Jiaotong
Wei, Yuefan
Thitsartarn, Warintorn
Yeo, Jayven Chee Chuan
Muiruri, Joseph Kinyanjui
Wong, Siew Yee
He, Chaobin
Keywords: Engineering::Mechanical engineering
Issue Date: 2018
Source: Kong, J., Tong, Y., Sun, J., Wei, Y., Thitsartarn, W., Yeo, J. C. C., . . . He, C. (2018). Electrically conductive PDMS-grafted CNTs-reinforced silicone elastomer. Composites Science and Technology, 159, 208-215. doi:10.1016/j.compscitech.2018.02.018
Journal: Composites Science and Technology
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., 10−3 S m−1 versus 10−8 S m−1 at MWCNTs/FSiO2 ratio of 2.5/30, which could be attributed to the formation of CNTs network.
ISSN: 0266-3538
DOI: 10.1016/j.compscitech.2018.02.018
Rights: © 2018 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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