Pristine carbon nanotubes (CNTs) aggregate severely due to the strong van der Waals binding energies and the dispersibility of CNTs in solvents is extremely poor. This is a formidable hurdle for fabrication of advanced CNT composite materials. The purpose of this research is to realize optimal dispersion of CNTs in organic solvents and to obtain a better understanding of electrical and mechanical properties in polymeric and elastomeric CNT composite materials. In this paper, we report the results obtained by the experiments.