Electrical, Mechanical and Thermalproperties of graphene-carbon Nanotubes/PMMA Hybrid Nanocomposite

Abstract

Carbon nanotubes (CNTs) and graphene have attracted tremendous interest in reinforcing fillers in polymer due to its unique structure and excellent physical properties. CNT or graphene-based polymer composites continue to make significant technical gains; however. there is sti ll clear gap between theoretical expectations and experimental accoll1 pi ishll1ents. The theoretica lIy pred ieted electrica I, mechan ica I and thermal properties depends on dispersion of fillers within the matrix. interfacial interaction between filler and matrix, aspect ratio ofCNTs. quality ofCNTs, nature ofCNTs and quality ofgraphene in the composite and alignment of CNTs. Therefore. to address the above-mentioned concerned problcms various approach have been considered in order to enhance the physical properties (electrical, mechanical and thermal). Admixture of graphene and CNTs in polymers is emerging as new 3-D hybrid structured composite materials with improvcd electrical, mechanical and thermal properties. The electrical, mechanical and thermal properties of PM MA composites based on M WCNTs-GO, rGO-M WCNTs and graphene (prepared by electrochemical method)-MWC Ts hyb rid fillers have been investi gated. Moreover. The etTects of functionalized MWCNTs and ionic liquid functionalized MWCNTs in the hybrid composites have also been investi gated. Enhanced electrical. mechanical and thermal properties in hyb rid polymer composites have been observed due to the better dispersion, effective load tran sfer as a re sult of synergi st ic effect of 10M WCNTS and 20 graphene