Chomerics Europe’s new electrically conductive acrylic coatings are designed for application onto plastic housings to provide EMI / RFI shielding.CHO-SHIELD 2040 is a silver-filled material that provides superior shielding performance of >75 dB and CHO-SHIELD 2044 uses a nickel filler to achieve >60 dB shielding effectiveness (both between 80 MHz and 10 GHz).CHO-SHIELD … [Read more...]
Global Electroactive Polymers Market to Reach $2.78 Billion
The global electroactive polymers (EAP) product market is expected to be worth $2.78 billion by 2014, according to a new M&M report, “Global Electroactive Polymers Market Trends, Applications And Forecasts (2009-2014).” The conductive plastics segment contributed 84% to the overall market in 2009, mainly due to its extensive application in electrostatic discharge and … [Read more...]
Spanish Group to Develop EMI Shielded Toys
European Plastics has reported that the Spanish Toy Research Institute (AIJU) is working on a project to develop conductive plastic formulations, using nanofibers, which minimize electromagnetic interference in electronic toys. AIJU is looking at using carbon nanofibres in thermoplastics such as PE and PP to facilitate electrostatic dissipation, electrostatic painting and … [Read more...]
Company Uses Graphene Material in Capacitors
Angstron Materials Inc. has invented a graphene-based supercapacitor with ultra high energy density. Along with the capacitors, Angstron offers a variety of graphene materials for use in electromagnetic interference, electrostatic discharge, lightning strike and other functional and structural composite applications. Angstron's graphene-based supercapacitor has demonstrated an … [Read more...]
Things to Consider When Specifying Conductive Plastics
In an article discussing conductive plastics, Plastics Today says that stainless steel fibers (SSF) provide good electromagnetic shielding properties, making compounds with this type of filler suitable to protect electric devices from electromagnetic interference. Learn more from Plastics Today. … [Read more...]
Micaclad Conductive Silver Glass Spheres
Micaclad Conductive Silver Glass Spheres (CSGS) is a highly conductive silver sphete with a dry bulk resistivity of .001 ohms/cm. The CSGS line not only improves compatibility with conductive film and circuit board applications but physically improves impact strength. It provides excellent conductivity and electromagnetic interference shielding protection, reducing or … [Read more...]
New Life for Magnetic Tape
A boost in storage density could keep magnetic tapes spinning for years, thanks to new research from IBM and Fujifilm. Increasing the density of data that can be stored on a tape makes it more difficult to reliably read information, which is already a problem because of electromagnetic interference and because the heads themselves will retain a certain amount of residual … [Read more...]
Simple Lab Techniques of Comparing EMI/RFI Absorber Materials
Surface current numbers can be used to pinpoint a material with the best absorption characteristics in a given frequency range. David R. Pacholok, Creative Electronics Consultants, Sleepy Hollow, IL, USA. With engineers facing ever increasing radiated EMI regulatory compliance concerns, various types of EMI absorber materials have come on the market. These are usually … [Read more...]
Shielding of an EMG Machine Utilizing a Conductive Tent
Testers seek to remedy the longstanding problem of “noisy’ responses from an EMG instrument. Terence P. O’Laughlin and Michael J. Oliver, MAJR Products, Saegertown, Pennsylvania, USA INTRODUCTION This paper presents a shielding methodology and test in which an electromyography (EMG) instrument is shielded from spurious electromagnetic and radio frequency interference … [Read more...]
Low Frequency Magentic Shielding: An Integrated Solution
Innovative direct coating technique as an alternative to conventional foils Rich Emrich and Andrew Wang, Integran Technologies Inc.; Toronto, Canada INTRODUCTION Many electrically sensitive devices, such as transducers, sensors, detectors, and test instrumentation require protection from electromagnetic interference (EMI). Higher frequency interference is normally shielded … [Read more...]
