期刊
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
卷 3, 期 -, 页码 415-427出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.3.48
关键词
biopolymers; carbon nanotubes; carrageenan; composite materials; conductivity; mechanical; rheology
资金
- King Saud University
- University of Wollongong
- Australian Research Council (ARC) Centre of Excellence
- ARC
- NSF
Conducting composite films containing carbon nanotubes (CNTs) were prepared by using the biopolymer kappa-carrageenan (KC) as a dispersant. Rheological studies indicated that 0.5% w/v was the appropriate KC concentration for dispersing CNTs. Our results showed that multiwalled nanotubes (MWNTs) required less sonic energy than single-walled nanotubes (SWNTs) for the dispersion process to be complete. Films prepared by vacuum filtration exhibited higher conductivity and improved mechanical characteristics compared to those prepared by evaporative casting. All composite films displayed sensitivity to water vapour, but MWNT films were more sensitive than SWNT films.
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