Authors: Yang, Yonglai; Gupta, Mool C.; Dudley, Kenneth L.; Lawrence, Roland W.

Source: Journal of Nanoscience and Nanotechnology, Volume 5, Number 6, June 2005 , pp. 927-931(5)

Publisher: American Scientific Publishers

Abstract:

Electromagnetic interference shielding properties of carbon nanofiber– and multi-walled carbon nanotube–filled polystyrene composites were investigated in the frequency range of 8.2–12.4 GHz (X-band). It was observed that the shielding effectiveness of composites was frequency independent, and increased with the increase of carbon nanofiber or nanotube loading. At the same filler loading, multi-walled carbon nanotube–filled polystyrene composites exhibited higher shielding effectiveness compared to those filled with carbon nanofibers. In particular, carbon nanotubes were more effective than nanofibers in providing high EMI shielding at low filler loadings. The experimental data showed that the shielding effectiveness of the composite containing 7 wt% carbon nanotubes could reach more than 26 dB, implying that such a composite can be used as a potential electromagnetic interference shielding material. The dominant shielding mechanism of carbon nanotube–filled polystyrene composites was also discussed.

Keywords: CARBON NANOFIBERS; MULTI-WALLED CARBON NANOTUBES; POLYSTYRENE; COMPOSITES; ELECTRICAL CONDUCTIVITY; ELECTROMAGNETIC INTERFERENCE SHIELDING

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2005.115

Publication date: 2005-06-01

More about this publication?

• Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
• Editorial Board
• Information for Authors
• Subscribe to this Title
• Terms & Conditions
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Technology
• By this author: Yang, Yonglai ;  Gupta, Mool C. ;  Dudley, Kenneth L. ;  Lawrence, Roland W.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers