Investigation of dielectric properties of polymer composites reinforced with carbon nanotubes in the frequency band of 0.01 Hz - 10 MHz

3rd International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures (Saint Petersburg OPEN 2016)

Goshev, A.A.^1 ; Eseev, M.K.^1 ; Kapustin, S.N.^1 ; Vinnik, L.N.^1 ; Volkov, A.S.^1

Northern Arctic Federal University Named after M.V. Lomonosov, Severnaya Dvina Emb. 17, Arkhangelsk

163002, Russia^1

关键词: Alternating electric field;    Functionalizations;    Low frequency band;    Model calculations;    Multiwalled carbon nanotube (MWCNTs);    Percolation thresholds;    Polymer nanocomposite;    Polymerization temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/741/1/012191/pdf
DOI  :  10.1088/1742-6596/741/1/012191

来源: IOP

【 摘 要 】

The goal of this work is experimental study of dielectric properties of polymer nanocomposites reinforced with multiwalled carbon nanotubes (MWCNTs) in alternating electric field in low frequency band of 0.01 Hz - 10 MHz. We investigated the influence, functionalization degree, aspect ratio, concentration of carbon nanotubes (CNTs) on dielectric properties of polymer sample. We also studied the dependence of dielectric properties on the polymerization temperature. The dependence of CNTs agglomeration on sample polymerization temperature and temperature's influence on conductivity has been shown. We conducted model calculation of percolation threshold and figured out its dependence on CNTs aspect ratio.