Conductive UV Curable Adhesives for Printed RFID Antenna Structures

For the use as RFID antennas conductive adhesives were developed and investigated which are UV curable and could be applied with printing methods like offset printing or flexography. Further investigated aspects of the materials have been the range of the distance between emitter and receiver. The resulting formulations which are based on acrylates filled with silver pigments for the conductivity allow to cure layers with a thickness of up to 50 μm with a maximal volume resistance of 1.6 x 10 -5 Ω/cm.