Carbon Nanotubes (CNTs)/glass fabric hybrid multi-scale composites was fabricated via Resin Transfer Molding(RTM)technique to explore the relationship of its structure and electrical properties. CNTs was dispersed in epoxy resin to gain a nano-composite matrix used for RTM process. The resulting hybrid multi-scale composites were studied with respect to the structural changes and electrical properties. The research shows that the hybrid composites with and without surfactant, Triton X-100, bear the percolation thresholds of 0.1 wt% and 0.3 wt%, respectively. At CNTs content of 0.3 wt%, the specimens taken from the inlet gate region of the RTM equipment show a decrease of electrical volume resistivity by two magnitudes compared with those of the samples taken from the middle and outlet gate region. The analysis of Transmission Electron Microscopy (TEM) indicates that the variation in the network structure of the CNTs within the nano-composite matrix during the injection molding process is responsible for the gradient in resistivity of the RTMed laminates.
WANG Bo-chen, YIN Jun-shan, WANG Li
. Manufacturing and electrical properties of CNTs/glass fabric hybrid multi-scale composites via RTM[J]. Journal of Shenyang Aerospace University, 2013
, 30(1)
: 61
-65
.
DOI: 10.3969/j.issn.2095-1248.2013.01.014
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