High-k nanocomposites with modified double layer in carbon black-epoxy system

Autor:	Se Yun Kim, Sang-mock Lee, Jae-Chan Lee, Sang Soo Jee, Eun-sung Lee, Jin-Young Bae, Bui Thanh Son, Yooseong Yang
Rok vydání:	2012
Předmět:	Nanocomposite Materials science Polymers and Plastics Passivation Polymer nanocomposite General Chemistry Carbon black Epoxy Dielectric visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Dielectric loss Composite material High-κ dielectric
Zdroj:	Polymer Composites. 33:601-608
ISSN:	0272-8397
Popis:	High dielectric constant (K), low dielectric loss (tan δ) polymer nanocomposite is achieved by introducing a modified electrical double layer in the carbon black (CB)-epoxy system, rather than by exploiting the percolation of CB in the epoxy system, in which both the dielectric constant and loss are increased simultaneously. The modified electrical double layer is introduced in CB-epoxy system when nanosized nickel oxides embedded in CB absorbs anionic surfactants. In addition to the ionic charges on the CB, high-k and low dielectric loss can be obtained because of CB passivation with the polymeric surfactant. The CB-epoxy nanocomposite containing 3.1 vol% of modified CB exhibited a high dielectric constant of K 5200 and a low dielectric loss of tan δ 45% at 1 MHz. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3eb4b514c07010be3d74e30fefe09142 https://doi.org/10.1002/pc.21263 Zobrazit plný text záznamu Plný text