Enhanced electrical conductivity of polymer nanocomposite based on edge-selectively functionalized graphene nanoplatelets. (22nd March 2020)

• Record Type: Journal Article
• Authors: Cho, Jaehyun; Lee, Hyeseong; Nam, Ki-Ho; Yeo, Hyeonuk; Yang, Cheol-Min; Seong, Dong Gi; Lee, Doojin; Kim, Seong Yun
• Is Part Of: Composites science and technology. Volume 189(2020)
• Publication Date: 2020-03-22
• Subjects: Particle-reinforced composites -- Polymer-matrix composites (PMCs) -- Nano composites -- Electrical properties -- Modelling; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2020.108001
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: Achieving high filler dispersion in a polymer composite is very important for effectively and efficiently imparting several advantages of functional fillers to the composite. To this end, we have suggested a synthesis of polyamide 6 via in situ ring-opening polymerization of ε-caprolactam and edge-selectively functionalized graphene nanoplatelets without defects on its basal plane synthesized by a ball-mill process with dry ice. As a consequence, the final graphene nanocomposite possesses highly dispersed filler and has enhanced electrical conductivity due to its undistorted sp 2 hybridization after functionalization. This approach is a promising way of incorporating filler into polymer composites, effectively implementing highly electrical conducting graphene without its aggregation and damage to its inherent properties after functionalization.