Oh, Kiwon Kim, Taeho Lee, Sang-Soo Lim, Soonho Kim, Daeheum Kim, Heesuk 2024-01-20T13:34:15Z 2024-01-20T13:34:15Z 2021-09-04 2012-11 1598-5032 https://pubs.kist.re.kr/handle/201004/128728 Very thin graphite nanosheets (GNSs) with 11 nm thickness and 250 nm in lateral size were simply prepared from bulk graphite via an ultrasonication and centrifugation in N,N-dimethylformamide (DMF) without any chemical treatments such as using surfactants. GNSs/epoxy nanocomposites with 3 wt% GNSs showed a high dielectric constant (710) and relatively low dielectric loss tangent (less than 0.5) at low frequency (100 Hz). This great improvement in the dielectric properties could be attributed to very thin thickness, excellent dispersibility and sheet-like shape of GNSs in comparison with graphite or thick GNSs. English POLYMER SOC KOREA ENERGY DENSITY CONSTANT COMPOSITES ELASTOMER CAPACITORS FILLER Facile preparation of epoxy nanocomposites with highly dispersed graphite nanosheets and their dielectric properties Article 10.1007/s13233-012-0200-5 1 MACROMOLECULAR RESEARCH, v.20, no.11, pp.1197 - 1200 MACROMOLECULAR RESEARCH 20 11 1197 1200 scie scopus kci ART001712088 000310538900014 2-s2.0-84871064130 Polymer Science Polymer Science Article ENERGY DENSITY CONSTANT COMPOSITES ELASTOMER CAPACITORS FILLER graphite nanosheets nanocomposites dielectric properties dispersion