Shielding effectiveness of carbon-filled nylon 6,6
Document Type
Article
Publication Date
8-2004
Department
Department of Chemical Engineering
Abstract
Electrically conductive resins can be made by adding electrically conductive fillers to typically insulating polymers. Resins with an electrical resistivity of approximately 10° ohm-cm or less can be used for electromagnetic and radio frequency interference shielding applications. This research focused on performing compounding runs followed by injection molding and shielding effectiveness testing of carbon filled nylon 6,6 based resins. The three carbon fillers investigated included an electrically conductive carbon black, synthetic graphite particles, and a surface-treated polyacrylonitrile (PAN)-based carbon fiber. Conductive resins were produced and tested that contained varying amounts of these single carbon fillers. In addition, combinations of fillers were investigated by conducting a full 23 factorial design and a complete replicate. The objective of this paper was to determine the effects and interactions of each filler on the shielding effectiveness properties of the conductive resins. Carbon fiber caused the largest increase in shielding effectiveness. Also, all the single fillers and combinations of fillers were statistically significant at the 95% confidence level, except the composite containing carbon black and synthetic graphite particles tested at 800 MHz.
Publication Title
Polymer Composites
Recommended Citation
Heiser, J.,
King, J. A.,
Konell, J.,
&
Sutter, L. L.
(2004).
Shielding effectiveness of carbon-filled nylon 6,6.
Polymer Composites,
25(4), 407-416.
http://doi.org/10.1002/pc.20034
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3813
Publisher's Statement
© 2004 Society of Plastics Engineers. Publisher’s version of record: https://doi.org/10.1002/pc.20034