Forum members: Am looking for a conductive plastic of such composition that the conductivity is uniform throughout the material, as opposed to a non-conductive exterior surrounding an inner core of dispersed conductive materials. Neither am I looking for some sort of deposited layer of conductive material.
Many years ago, 3M demonstrated such a material at a few EMC Symposia. The demo consisted of a small plastic box with a lid that was large enough to fully contain a chattering relay. With the chattering relay in the box minus the lid and near a small AM radio, it tore up AM reception, but gently putting the lid on it (no fasteners per my recollection) was enough to kill the interference completely. My recollection is that 3M did not go into production with that material, else I would be looking for it there. The need is for a small conductive enclosure for harsh environments where a layer of deposited conductive material is undesirable. Further, I do not want a manufacturing process that requires laborious removal of the outer insulating material where the sides of the box overlap and need to make a conductive seam. I am willing to give up quite a bit of conductivity relative to a deposited layer of metal or metallic coating in order to get this magical homogenously conductive material. Any one know of anything like this, or is it unobtainium? Thank you, Ken Javor Phone: (256) 650-5261 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
