Journal Menu
Related Events
Journal of Nanoelectronic Devices
JND 2019, 1(1), 4-6
Effect of Carbon Nanotube on Electrical and Morphological Properties of Tissue Equivalent Polyamide/Polyethylene Nanocomposite
Radiation Applications Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Iran
ABSTRACT
A tissue equivalent nanocomposite based on polyamide6 and polyethylene filled with different parts of CNT (1-4%) was prepared. Electrical conductivity measurements showed that by adding only 3% CNT to PA6/PE blend, itreaches to percolation threshold. The electrical conductivity of the nanocomposite with 3% CNT reaches to 3 × 10^6 S/cm which is in the range of semi-conductive materials. SEM studies of conductive PA6/PE/CNT nanocomposite showed two distinct, co-continuous morphologies for PA and PE phases. TEM observation confirmed the co-continuous morphology for PA6/PE/CNT nanocomposite and selective localization of CNTs in PA phase and at the interface of two phases. Due to high aspect ratio of CNTs, they are in contact with each other inside the continuous PA phase and formed a conductive network which could provide electrical properties in nanocomposite. Consequently, low percolation threshold of PA6/PE/CNT nanocomposite is resulted from formation of double percolation structure in co-continuous phases of PE and PA and in CNT networks in PA phase of nanocomposite.
Polyamide6/Polyethylene blend; Carbon nanotube; Nanocomposite; Electrical conductivity; Double percolation.