RTU Research Information System
Latviešu English

Publikācija: Characterization of Electron Beam Cross-Linked Ethylene-Octene Copolymer Composites with Carbon Nanotubes

Publication Type Scientific article indexed in SCOPUS or WOS database
Funding for basic activity National Research Programme
Defending: ,
Publication language English (en)
Title in original language Characterization of Electron Beam Cross-Linked Ethylene-Octene Copolymer Composites with Carbon Nanotubes
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors I. Reinholds
Ženija Roja
Remo Merijs-Meri
Jānis Zicāns
Keywords ionizing radiation, ethylene–octene copolymer, carbon nanotubes, mechanical and thermal properties, dielectric characteristics.
Abstract The effect of radiation cross-linking on the properties of Engage® 8200 ethylene–octene copolymer (EOC) with multi-walled carbon nanotube (CNT) nanocomposites was evaluated. An ultra-sound assisted technique combined with thermoplastic mixing was used to make EOC/CNT composites with a wide ratio of CNT concentrations (0 to 15 wt%). Composite films were irradiated by 5 MeV accelerated electrons at relatively high doses (150 and 300 kGy), and their structure and mechanical and dielectric properties were compared. Gel fraction measurements indicated dominant cross-linking of EOC with the rise of the absorbed dose. Cross-linking as well as chain scission of macromolecules in the presence of CNTs caused a certain change in mechanical properties. Dielectric measurements indicated a decrease in ac conductivity and a change in dielectric permittivity, mainly associated with prevented charge movements between CNTs incorporated in the spatially cross-linked macromolecular structure of EOC compared to that of unirradiated EOC/CNT composites.
DOI: 10.3176/proc.2017.4.10
Hyperlink: http://www.kirj.ee/29444/?tpl=1061&c_tpl=1064 
Reference Reinholds, I., Roja, Ž., Merijs-Meri, R., Zicāns, J. Characterization of Electron Beam Cross-Linked Ethylene-Octene Copolymer Composites with Carbon Nanotubes. Proceedings of the Estonian Academy of Sciences, 2017, Vol.66, No.4, pp.377-382. ISSN 1736-6046. e-ISSN 1736-7530. Available from: doi:10.3176/proc.2017.4.10
Additional information Citation count:
  • Scopus  0
ID 27271