Breaking News
Comments
Newest First | Oldest First | Threaded View
DB3TK
User Rank
Rookie
re: Plastic wires rival copper at 20 percent the weight
DB3TK   12/16/2008 2:13:56 PM
NO RATINGS
At frequencies where the skin effect dominates the conductor resistance of solid copper, it will definitely work - the inner part of a copper conductor is just dead weight when 90% or more of the current are carried in a layer a few µm below the surface. Since Integral produces antennas for up to 2.4GHz, I assume that they plan to use the metallized plastic in coax conductors.

daleinaz
User Rank
Rookie
re: Plastic wires rival copper at 20 percent the weight
daleinaz   11/13/2008 11:45:52 PM
NO RATINGS
Intresting... I assume you would need a larger diameter (cross-section) for the same current capacity. Still, this could be especially valuable in automobiles, the wiring harness weight is ~50 lbs, cutting that by 80% would help fuel economy. But I'm puzzled - if the current is carried by metal fibers (and not by the plastic itself), it seems like you'd need the same amount of metal. Also this seems like a great material for enclosures for laptops/cellphones/etc., as it is moldable but provides EMI/ESD/RFI protection.

Mike K.
User Rank
Rookie
re: Plastic wires rival copper at 20 percent the weight
Mike K.   11/7/2008 8:53:04 PM
NO RATINGS
Fascinating, but seemingly very backwards when environmental performance characteristics are considered. First, this is based on a polymer, presumably from a non-renewable resource. Second, it's not clear that it's easily recyclable - how are the metals and the polymers separated? Third, it probably requires the use of phthalates and possibly flame retardants, chemical substance classes that are coming in to scrutiny in Europe and elsewhere. On the positive side since the weight is lower it might cost less (and use less energy) to transport.



Most Recent Comments
R_Colin_Johnson
 
R_Colin_Johnson
 
David M Archer, Ph.D.
 
krisi
 
krisi
 
krisi
 
krisi
 
krisi
 
krisi
Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
1 Comment
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Max Maxfield

Juggling a Cornucopia of Projects
Max Maxfield
6 comments
I feel like I'm juggling a lot of hobby projects at the moment. The problem is that I can't juggle. Actually, that's not strictly true -- I can juggle ten fine china dinner plates, but ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
34 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Karen Field

July Cartoon Caption Contest: Let's Talk Some Trash
Karen Field
128 comments
Steve Jobs allegedly got his start by dumpster diving with the Computer Club at Homestead High in the early 1970s.

latest comment mhrackin Where's the "empty bin" link?
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)