circuits are molded into plastic housings in a new technology introduced at K
2010 by A. Schulman, a plastics compounder based in Akron, OH.
showed an electrically conductive plastic compound developed for Hella KGaA Hueck &
Co., a Finnish lighting manufacturer.
tin are loaded at a very high level (60 and 25 percent respectively) in
polyamide 6. The tin acts like a solder connecting the copper fibers.
conductivity of the compound is 1,000 times better than the next most
conductive plastic compound available (plastic loaded with steel fibers)," says
Thilo Stier, innovation manager for A. Schulman.
production part is a light that can be used for automotive or other end-market
production process is novel.
ABS plate and the PMMA (acrylic) reflector are injection molded in a
three-component process. The electrical resistor, diodes, LED and contact pins
for the plug are inserted and connected with the new conductive compound, which
is called Schulatec
TinCo 50. The ABS-coated reflector is then mounted to ensure watertight
the material can be used for housings and lighting applications. The new
technology permits new design opportunities while also reducing costs through
integration of structural and electrical functions into one part.
electrical conductivity of the compound is in the range of 5 x 105
S/m. The conductivity of copper alone is 5.69 x 107 S/m.
the technology began with Siemens in 1998 and was later supported by IKV Aachen, a German research
Artificially created metamaterials are already appearing in niche applications like electronics, communications, and defense, says a new report from Lux Research. How quickly they become mainstream depends on cost-effective manufacturing methods, which will include additive manufacturing.
Sharon Glotzer and David Pine are hoping to create the first liquid hard drive with liquid nanoparticles that can store 1TB per teaspoon. They aren't the first to find potential data stores, as Harvard researchers have stored 700 TB inside a gram of DNA.
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